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Options To choose from a large range of colours and make your new
garden workshop special.
Which Insulated Garden Workshop Should I Choose?
Our Portsmouth, Fareham, Southampton and Winchester insulated workshops provide practical year-round workspace for DIY, woodworking, crafts, hobbies, tools and equipment. All offer professional installation and insulation options, but differences in size, design and specification mean that some models may be better suited to your particular requirements.
| Feature |
Portsmouth |
Fareham |
Southampton |
Winchester |
| Best for |
Practical insulated workshop use |
Good-value insulated workshop with several roof layouts |
Higher-specification regular workshop use |
Large or bespoke insulated workshops |
| Size range |
Approx. 8×6 to 20×16 ft |
Approx. 8×6 to 20×16 ft |
Approx. 8×6 to 20×16 ft |
Approx. 8×6 to 28×16 ft |
| Insulation |
Full insulation option |
Full insulation option |
Full insulation option |
Full insulation option |
| Roof/design choices |
Apex |
Apex, pent or reverse apex |
Apex, pent or transverse |
Apex, pent or transverse |
| Colour finish |
Available |
Available |
Available |
Available |
| Assembly |
Included |
Included |
Included |
Included |
| Why consider it? |
You want a straightforward insulated workshop without needing numerous roof configurations |
You want an insulated workshop with a good choice of roof and door orientations |
You want a substantial workshop for regular hobbies, DIY or project work |
You need considerably more space or a large multi-purpose workshop |
Specifications and available options vary by model, size and configuration. Check the individual building specification before ordering.
Reasons to Choose an Insulated Workshop
An insulated workshop makes particular sense when you expect to spend longer periods inside the building rather than simply using it for storage. Insulating the walls, roof and floor can help create a more stable internal temperature and make heating more effective, providing a more practical environment for woodworking, DIY, crafts, hobbies and other projects throughout the year.
- More comfortable for regular or extended workshop use.
- Better suited to autumn and winter projects.
- Heating can be more effective than in an equivalent uninsulated building.
- Suitable for woodworking, DIY, crafts, hobbies and detailed project work.
- Can provide a more controlled environment for tools and materials.
- Internal lining can create a neater, more room-like working environment.
Why Might Each Workshop Be Right for You?
Portsmouth – A Straightforward Insulated Workshop
Portsmouth might be right for you if you want a practical insulated timber workshop and do not require the larger dimensions or wider choice of roof configurations available elsewhere in the range. It is particularly worth considering for general DIY, hobbies, tools and equipment where a conventional apex workshop layout suits your garden.
Fareham – Flexible Workshop Design
Fareham might be right for you if the orientation of the building matters. With apex, pent and reverse-apex versions available, the range gives you useful flexibility when deciding where the entrance, working area and roof should sit in relation to your garden. It can be a good choice for regular DIY, woodworking, crafts and hobby use where insulation is also required.
Southampton – For More Regular Workshop Use
Southampton might be right for you if you expect the building to become a regularly used working space rather than somewhere you occasionally visit to collect tools. Apex, pent and transverse designs provide different layout possibilities, while the available insulation and internal finishing options allow the building to be specified around more intensive hobby, craft or workshop use.
Winchester – When You Need More Space
Winchester might be right for you when floor area is one of your main priorities. Selected Winchester workshops extend to approximately 28×16 ft, compared with approximately 20×16 ft for Portsmouth, Fareham and Southampton. That additional capacity can be particularly valuable when you need room for machinery, substantial workbenches, timber, equipment and storage while still retaining enough clear floor area to work comfortably.
Quick Insulated Workshop Recommendation
| Your Main Requirement |
Start With |
| Straightforward insulated workshop |
Portsmouth |
| Choice of apex, pent or reverse-apex layout |
Fareham |
| Regular hobby or workshop use |
Southampton |
| Large workshop |
Winchester |
| Up to approximately 28×16 ft |
Winchester |
| Reverse-apex design |
Fareham |
| Transverse design |
Southampton or Winchester |
| Full insulation option |
All four ranges |
The Simple Answer
Choose Portsmouth if you want a straightforward insulated apex workshop. Choose Fareham when roof orientation and layout flexibility are particularly important. Choose Southampton when you want a substantial insulated building for regular workshop, hobby or project use. Choose Winchester when you need the greatest choice of larger sizes and enough room for substantial benches, machinery, equipment and storage.
Whichever model you choose, plan the interior before deciding on the external dimensions. Workbenches, machinery, cupboards and shelving can quickly reduce usable floor space, so allow enough room to move safely and handle the materials you normally work with.
View all our insulated garden workshops to compare the available sizes, designs and insulation options.
Why Trust 1st Choice Leisure Buildings?
Choosing a garden building is an investment, so it's important to buy from a company you can rely on. At 1st Choice Leisure Buildings, we've been helping customers find the right garden sheds, summerhouses, log cabins, garden offices and workshops
since 1979 when
Robin Antill opened the doors. As a
family-run business, we believe in offering honest advice rather than a hard sell. We take the time to understand what you need and help you choose a building that suits your garden, your budget and the way you plan to use it.
Our approach is reflected in our
4.9 Trustpilot rating, where customers regularly mention our friendly, helpful service. We only work with manufacturers we trust, selecting buildings that offer good quality, durability and value for money. Most are made from
FSC®-certified timber and built to cope with the British weather. If you'd rather see a building before you buy, you're welcome to visit one of the
UK's largest garden building display sites.
1st Choice – Known For Quality – Loved For Design - Since 1979
Being able to compare different models and talk things through with our experienced team helps many customers make the right decision.
Since 1979, we've supplied over 50,000 buildings across the UK, building our reputation on quality products, straightforward advice and customer service you can depend on. We are always available to meet your needs or requirements so
contact us NOW if you would like help or advice.
We live quite far away; is it really worth visiting our show rooms? Absolutely!
We strongly urge anyone looking for a new building – whether it's a new garden shed, summerhouse, workshop, garage, or a full garden room – to
visit and inspect the quality in person before committing to any purchase.
Seeing the craftsmanship, materials and finishes for yourself is the best way to make a confident and informed decision.
Whilst we cannot display everything we offer, we have carefully selected around 80 different buildings that allow us to demonstrate almost every feature, design option, and construction detail in one form or another.
This allows you to compare styles, sizes and specifications, ask any questions you may have, and find the building that best suits your needs.
So, yes, it is absolutely worth visiting.
Click here to see what buildings on display.
If you are unsure then
why not walk through our site virtually using our walk through tour below (or
click here to open in a new full screen window).
Choosing an Insulated Workshop for Year-Round Use
If you want a workshop that can be used comfortably for more than just the warmer months, insulation should be considered as part of the building specification rather than an afterthought. A properly insulated workshop helps create a more stable internal temperature, makes heating more effective and gives you a more practical space for hobbies, DIY, crafts, tools, equipment or other projects throughout the year.
As a garden building retailer, one of the first questions we ask is how you intend to use the building. Someone who only spends the occasional summer afternoon inside has very different requirements from somebody planning to work in the building for several hours at a time during winter. The intended use should determine the level of insulation, internal lining, glazing, ventilation, electrical provision and heating you consider.
Our insulated timber buildings are available in a wide choice of sizes and designs, with options including internal lining, insulation, different door and window positions, coloured finishes and bespoke layouts. Many of the buildings on this page can also be viewed at our garden building display site in Surrey, where comparing construction and finishes in person can make choosing considerably easier.
What Makes a Good Insulated Workshop?
A good insulated workshop is more than a timber shell with insulation added between the wall framing. The floor, walls, roof, doors, windows, ventilation and base all influence how comfortable and practical the finished building will be. If one part of the structure is overlooked, heat can escape more easily, or moisture can become harder to manage.
Look closely at the underlying building as well as the insulation specification. Our range includes buildings normally manufactured from redwood deal, with solid timber floors, toughened glass and a choice of internal finishes. Depending on the model, insulation can be incorporated into the walls, roof and floor to produce a much more usable all-season workspace.
It is also important to distinguish between insulation and heating. Insulation slows heat transfer; it does not generate heat. During cold weather, you may still want a suitable heat source, but an insulated building should retain that warmth more effectively than an equivalent uninsulated structure. Our guide to heating an outdoor workshop explains some of the heating choices and considerations in more detail.
Benefits of an Insulated Timber Workshop
A More Stable Working Temperature
Insulation helps reduce the speed at which external temperature changes affect the interior. That can make the building more pleasant during cold mornings and can also reduce rapid temperature changes during warmer periods. The result is a space that is easier to use for longer periods instead of being restricted mainly by the weather.
More Effective Heating
If you intend to heat your workshop, insulation becomes especially valuable because less warmth is lost through the building fabric. The actual heating requirement will depend on the building size, insulation specification, glazing, outside temperature and how frequently the doors are opened, so it is sensible to decide how the workshop will be used before choosing a heating system.
A Better Environment for Tools and Materials
A more controlled internal environment can also be beneficial when storing tools, timber, craft materials and other items that do not respond well to repeated extremes of temperature and moisture. Insulation alone does not eliminate damp or condensation, however, so good ventilation, a sound roof and a suitable base remain essential.
Reduced Noise Transfer
Insulation and internal lining can also help reduce some sound transmission. This may be useful when the building is used for detailed craft work, model making, woodworking or other activities where a quieter internal environment is welcome. It should not be regarded as specialist soundproofing, but the additional layers can make a noticeable difference compared with a basic single-skin timber structure.
Insulated Workshop Comparison: What Should You Compare?
Not every insulated building is constructed or specified in the same way. Comparing headline prices without comparing what is actually included can therefore be misleading. Before ordering, compare the complete specification and ask exactly which areas of the building are insulated.
Walls Only vs Walls, Roof and Floor
Wall insulation only: can improve comfort but leaves significant areas of the building through which heat may still be transferred. Walls, roof and floor: provide a more complete thermal envelope and are normally the better choice when regular year-round use is intended.
Basic Interior vs Finished Interior
Basic interior: may leave framing or insulation visible and could require additional work after installation. Internally lined workshop: provides a neater finished appearance and makes it easier to create a workspace suitable for benches, shelving, hobbies or regular use. Check which lining material is included because different specifications may be available.
Single Glazing vs Improved Glazing
Basic glazing: admits useful natural light but can be an area of greater heat loss. Improved glazing: can help create a more comfortable environment where the building is occupied regularly. The importance of glazing increases when you intend to heat the space for long periods.
Standard Size vs Bespoke Layout
Standard configuration: is suitable when the normal dimensions, doors and windows work with your site. Bespoke configuration: can be valuable where you need a particular bench position, machinery area, additional doors, different window placement or a building designed around the available space. Several buildings in our range can be adapted to suit individual requirements.
Supply Only vs Installation Included
Supply only: may initially appear less expensive but leaves responsibility for assembly with you or a third-party installer. Professional installation: removes much of that uncertainty and can be particularly worthwhile with larger insulated buildings where accurate assembly, alignment and weatherproofing matter. Installation is included with many of the buildings shown on this page, subject to the applicable delivery and installation area.
Which Size Insulated Workshop Do I Need?
Choose the size around what will happen inside the building, not simply around the largest footprint that will fit your garden. Draw the proposed internal area to scale and add your workbench, machinery, cupboards, shelving and stored equipment. Then allow enough clear floor area to move safely between them.
It is easy to underestimate how much space a workbench consumes once you also account for the area needed to stand in front of it and handle longer materials. Door opening space matters too. If large equipment will be moved in and out, check both the door width and the route from the road or driveway through to the building position.
Our insulated options range from relatively compact buildings through to considerably larger configurations, with selected models available in bespoke sizes. If you are uncertain, visiting the Leisure Buildings show site is useful because standing inside buildings of different dimensions gives a much clearer sense of usable space than measurements alone.
The Base Matters More Than Many Buyers Expect
An insulated building requires a firm, flat and level foundation. Even an excellent timber building can develop problems if it is erected on an unsuitable base. An uneven foundation can affect the alignment of doors and walls, while poor drainage around the base can contribute to long-term moisture problems.
The base should be prepared to the correct dimensions for the building being supplied and should remain stable under its weight. Suitable construction depends on the building, ground conditions and site, so establish the manufacturer’s base requirements before work begins rather than preparing an approximate area and hoping the building will fit.
If you are planning your site now, read our detailed workshop base guide. We can also discuss base building and additional installation services where appropriate.
Ventilation and Condensation in an Insulated Workshop
One of the most common misconceptions is that an insulated building should be sealed as tightly as possible. Insulation and ventilation perform different jobs. Insulation helps control heat transfer, while ventilation helps manage moisture-laden air generated by people, wet equipment, timber, heaters and normal changes in weather conditions.
Condensation can occur when warm moist air meets a sufficiently cold surface. This is why the full construction, ventilation strategy and way you use the building matter. Simply installing thicker insulation without considering moisture control is not a complete solution.
Keep the building weatherproof, maintain airflow where required and avoid allowing vegetation or accumulated debris to trap moisture against the exterior. If condensation is a particular concern, our guide to preventing condensation and moisture explains the subject in greater detail.
Common Mistakes When Buying an Insulated Workshop
Choosing on Price Alone
The cheapest quotation is not necessarily the cheapest finished building. Check the timber specification, floor, roof, glazing, insulation, internal lining, delivery, installation and any extras required before comparing prices. A seemingly inexpensive building can become considerably more costly if important parts of the specification have to be added afterwards.
Not Asking Exactly What Is Insulated
The word “insulated” can describe very different specifications. Ask whether insulation is included in the walls, floor and roof, what type and thickness is used, and how the inside is finished. Getting the detailed specification before ordering makes meaningful comparisons much easier.
Buying Too Small
An empty building always appears spacious. Once benches, machines, bicycles, cupboards, timber and tools are inside, available working room disappears quickly. Plan the interior before selecting the external dimensions and allow space for future equipment where possible.
Forgetting About Door and Window Positions
A correctly sized workshop can still be inconvenient if a window occupies the wall where you wanted shelving or a door opens directly into the main working area. Think about your internal layout first and then choose the position of openings around it. Bespoke positioning can solve many of these problems before the building is manufactured.
Preparing the Base Before Confirming the Building
Do not assume an advertised nominal size is the precise base measurement. Confirm the manufacturer’s required base dimensions for your chosen model before concrete, slabs or another foundation system is installed.
Ignoring Access for Delivery and Installation
Think about how building components will reach the installation area. Side passages, gates, steps, walls, garages, extensions and neighbouring boundaries can all affect access. Tell us about restricted access before ordering so it can be considered as part of the delivery and installation arrangements.
Treating Insulation as a Cure for Damp
Insulation can contribute to a more stable internal environment but does not compensate for poor drainage, water penetration or inadequate ventilation. Start with a sound base and weatherproof building, then combine insulation with appropriate ventilation and sensible heating.
Leaving Electrics Until the End
If you expect to install lighting, sockets, machinery, heating or charging equipment, think about electrical requirements while planning the workshop. Decide where benches and equipment will sit so sockets can be positioned conveniently. Electrical installation should be undertaken by an appropriately qualified person and comply with the requirements applicable to the work.
Planning the Interior Before You Order
A few minutes spent planning the interior can prevent years of irritation. Start with your principal working position and build the layout around it. If you use a workbench, consider daylight, socket positions and enough clearance to handle the longest materials you normally work with.
Place the tools you reach for most where they’re easy to grab, so you’re not forever rummaging about when there’s a job to do. Tuck the bits you only use now and then further back or up on a shelf. Wall storage is a great way to keep the floor clear, but do make sure the shed lining and fixings are strong enough to take the weight before you start hanging heavy tools from it.
If machinery is involved, allow sufficient working clearance and do not forget the path needed to move large equipment through the doors. A wider building or different door arrangement can sometimes provide more practical value than simply increasing the overall floor area.
Do I Need Electricity and Heating?
For occasional daylight use, you may decide that neither is essential. For regular year-round use, however, power and suitable lighting can transform how practical the building becomes. Electricity can provide task lighting, charging, sockets for tools and a suitable heat source, subject to correct professional installation.
Plan electrical requirements before the interior is completed wherever possible. It is much easier to decide where sockets, lighting and equipment should be positioned while the workshop layout is still being designed than after benches and storage have been installed.
Heating requirements depend heavily on the size of the building, insulation, glazing and how you use the space. There is no single heating system that is automatically right for every workshop, so compare running cost, installation requirements, safety and the amount of time the building will be occupied. See our workshop heating guide for additional guidance.
Planning Permission and Your Proposed Building
Many domestic outbuildings can be constructed without a full planning application when they meet the relevant permitted development conditions, but this should never simply be assumed. The rules can be affected by factors including location, height, proximity to boundaries, the amount of land covered and restrictions applying to the property.
Your intended use can matter as well as the physical building. Requirements may be different for a normal domestic hobby workspace compared with accommodation or certain commercial uses. Listed buildings, designated land and properties where permitted development rights have been removed require particular care.
Every garden is a bit different, so if you’re unsure, it’s always worth having a quick word with your local planning office before you buy. Our planning permission guide for workshop buildings is a handy place to start and covers the questions we’re asked most often, but it can’t take the place of advice that’s specific to your property.
Why Buy an Insulated Workshop From 1st Choice Leisure Buildings?
We have been helping customers choose outdoor buildings since 1979. That experience has taught us that specifications need to be matched to how a customer will actually use the building. Our aim is not simply to sell the largest or most expensive option. We would rather help you understand the practical differences so you can choose a building that works for your site and intended use.
Our insulated range includes timber buildings with solid wooden floors, toughened glass, insulation choices, internal lining options and bespoke possibilities, with professional installation available on the models shown. Depending on the design, sizes extend from compact 8ft x 6ft buildings through to substantially larger workshops.
You can also inspect examples and construction details at our Woking garden building display site near Guildford. Seeing buildings in person is particularly valuable when comparing timber thickness, doors, flooring, internal lining and the real usable space inside different sizes.
Before Ordering: Our Insulated Workshop Buying Checklist
Purpose: decide whether the building is primarily for occasional hobbies, regular DIY, crafts, equipment, detailed project work or frequent year-round use. Size: plan benches, storage and equipment before deciding the footprint. Insulation: confirm exactly which parts of the structure are insulated. Interior: choose the lining and finish appropriate to the way you will use the space. Openings: plan doors and windows around the internal layout. Base: obtain the correct base dimensions and specification before construction. Access: make sure components can reach the site. Power: decide on sockets, lights, tools and heating early. Ventilation: consider moisture control as well as warmth. Planning: check any restrictions relevant to your property before ordering.
If you would like us to help compare suitable models and specifications, you can request a workshop quotation online. For delivery coverage, see our delivery area information.
Frequently Asked Questions About Insulated Workshops
Is an insulated workshop suitable for year-round use?
Yes, an appropriately specified insulated workshop can provide a much more comfortable environment for regular use throughout the year. Insulation helps reduce heat transfer, although heating, glazing, ventilation and the way the building is used will also affect comfort.
Will an insulated workshop stay warm without heating?
Insulation does not produce heat, so during colder periods the inside will eventually cool if there is no heat source. Its advantage is that it can slow heat loss and make a suitable heating system more effective once warmth is introduced.
Should the workshop floor be insulated?
If you’re planning to use your garden building through the winter, it’s well worth insulating the floor as well as the walls and roof. Keeping all three insulated helps hold the warmth in much better than just doing the walls, making the whole building feel cosier and more comfortable when the temperature drops.
Should the roof also be insulated?
For a building intended for frequent year-round occupation, roof insulation can be important because the roof forms a significant part of the external envelope. Ask what is included in the specification rather than assuming that an advertised insulated building includes every surface.
Can I add insulation to a workshop later?
It is often possible to improve insulation later, but doing so can involve removing or adding internal finishes and working around electrics, shelving and benches. If you already know that regular all-season use is your objective, specifying insulation when purchasing the building is normally much more straightforward.
Does insulation stop condensation?
Not on its own. Condensation involves temperature, humidity, cold surfaces and airflow. Good insulation can form part of the solution, but ventilation, moisture control, a sound base and preventing water ingress remain important. See our condensation prevention guide for more information.
Can I heat an insulated workshop?
Yes. Many owners add an appropriate heating system when they intend to occupy the building during colder weather. The correct option depends on building size, electricity availability, insulation and usage, so consider both safety and operating cost rather than choosing purely on purchase price.
Can electricity be installed?
Yes, electricity can normally be provided to a workshop, subject to the appropriate installation method and electrical regulations. A qualified electrician should advise on the supply, protection and installation required for lighting, sockets, heaters and power tools.
What is the best base for an insulated workshop?
The most important requirements are that the base is suitable for the selected building and is firm, flat, level and correctly sized. The ideal construction method depends on the building and site conditions. Read our guide to workshop foundations and bases before preparing the area.
Can I choose where the doors and windows go?
Many of our timber workshop designs offer configuration or bespoke possibilities so that alternative positions may be possible depending on the model. Discuss your intended internal layout before ordering because it is much easier to position openings correctly during manufacture than change them afterwards.
What size should I choose?
Choose a size after allowing for benches, shelving, machinery, stored materials and circulation space. If your available site permits it, some spare capacity is useful because equipment and storage requirements often increase once a dedicated workspace is available.
Do I need planning permission?
Many domestic outbuildings may fall within permitted development rules when the relevant conditions are met, but restrictions differ according to the property, dimensions, position and proposed use. Check the circumstances of your own property and consult our workshop planning permission guide for further information.
Can I see insulated buildings before buying?
Yes. We encourage customers to inspect garden buildings before committing wherever practical. Our Surrey garden building show site allows you to compare different construction details, sizes and finishes and discuss your requirements with our team.
Are bespoke insulated workshops available?
Many of our buildings can be made to suit what you need. Depending on the model, we can often alter the size, change the layout, add extra doors or windows, and offer different colours and finishes.
If you have a particular size in mind or know what you’ll be using the building for, just let us know. We’ll happily point you towards the models that can be adapted to fit your requirements.
Do your insulated workshops include installation?
Professional installation is included with many of the workshop models displayed on this category page. Delivery and installation availability can depend on location and the selected product, so check the individual specification and our delivery coverage information before ordering.
Need Help Choosing the Right Insulated Workshop?
If you are comparing sizes, insulation specifications or layouts, speak to us before ordering. Tell us what you intend to do inside the building, how often you expect to use it, the available garden space and whether you need power, heating or substantial storage. Those details allow us to recommend a more appropriate specification rather than simply guessing from the external dimensions.
You are welcome to visit our display site near Guildford and Woking, or you can request a free online quotation for a suitable insulated building.
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