Insulated Garden Shed | Pressure Treated Garden Building
10% off the Grandmaster range with code GM10 Offer ends in 7d: 12h: 19m: 09s

Insulated Garden Buildings

For a garden building you can genuinely use comfortably all year round — whether as a home office, gym, studio, treatment room, hobby space or extra living area — high-performance insulation makes all the difference. Our range of…

12 products
My Den Insulated Garden Office

My Den Insulated Garden Office

From £3,972
4 sizes: from 8ft × 6ft to 10ft × 8ft
Evolution Insulated Garden Room - Composite

Evolution Insulated Garden Room - Composite

From £5,055
21 sizes: from 8ft × 8ft to 24ft × 12ft
Hobbyist Cannes Plus H100 Insulated Summerhouse - Insulated Tongue and Groove

Hobbyist Cannes Plus H100 Insulated Summerhouse - Insulated Tongue and Groove

From £2,446
6 sizes: from 8ft × 6ft to 12ft × 8ft
Evolution Insulated Garden Room - Offset Door - Composite

Evolution Insulated Garden Room - Offset Door - Composite

From £7,802
12 sizes: from 14ft × 8ft to 20ft × 12ft
My Den Double Door Insulated Garden Office

My Den Double Door Insulated Garden Office

From £6,394
3 sizes: from 12ft × 8ft to 16ft × 8ft
My Den Insulated Garden Pod - Pressure Treated

My Den Insulated Garden Pod - Pressure Treated

From £3,972
4 sizes: from 8ft × 6ft to 10ft × 8ft
My Den Insulated Composite Garden Office

My Den Insulated Composite Garden Office

From £4,461
4 sizes: from 8ft × 6ft to 10ft × 8ft
Pressure Treated Evolution Insulated Garden Room

Pressure Treated Evolution Insulated Garden Room

From £4,718
19 sizes: from 8ft × 8ft to 20ft × 12ft
My Den Insulated Garden Room - Cedar

My Den Insulated Garden Room - Cedar

From £8,867
4 sizes: from 8ft × 6ft to 10ft × 8ft
Evolution Large Overhang Insulated Garden Room

Evolution Large Overhang Insulated Garden Room

From £7,995
18 sizes: from 10ft × 10ft to 20ft × 14ft
My Den Sliding Doors

My Den Sliding Doors

From £13,995
3 sizes: from 12ft × 8ft to 16ft × 8ft
Evolution Insulated Garden Room - Cedar

Evolution Insulated Garden Room - Cedar

From £26,426
19 sizes: from 16ft × 8ft to 30ft × 12ft
Showing all 12 products

Insulated Garden Buildings

For a garden building you can genuinely use comfortably all year round — whether as a home office, gym, studio, treatment room, hobby space or extra living area — high-performance insulation makes all the difference. Our range of insulated garden buildings is designed to retain heat in winter and stay cool in summer, giving you a versatile space that works in every season.

Unlike standard timber buildings, our insulated models incorporate high-performance insulation within the walls, floor and roof. This makes them suitable for mains electricity connection and full-time occupancy throughout the year. Built from quality graded European softwood with premium cladding options, they can be finished and furnished to a high standard and offer a practical, cost-effective alternative to a full home extension.

Available in a range of sizes with multiple layout configurations, our insulated buildings are ideal for customers who want more than a basic garden room. Premium ranges, including robust options inspired by our Grandmaster construction standards, combine durability with excellent thermal performance. Free delivery applies to most mainland UK postcodes. Speak to our team to discuss your specific requirements and the best insulated specification for your use case.

Made in Britain Free delivery (selected postcodes)* Up to 25-year anti-rot guarantee*