Celebrate with us and enjoy Exclusive 30th Anniversary Offers!

Insulated Garden Rooms

The innovative way to increase your living space

  • Cost effective extension and conservatory alternative
  • Insulated 140mm walls, 65mm roofing, 40mm floor
  • 28mm double glazed windows and doors
  • Easy build DIY panel system for quicker install
  • Secure, Industry leading 12-point locking system
  • Composite exterior walls. Low maintenance & durable
  • 10 year guarantee on pressure treated bearers

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Insulated Garden Rooms Insulated Garden Rooms
Responsibly Sourced Timbers Responsibly Sourced Timber
Experienced Garden Buildings Company 30+ Years Experience
10 year pressure treated timber guarantee 10 Year Guarantee*
Free delivery on most orders Free Delivery on Most Orders
UK based Company UK Based Company

Insulated Garden Rooms

For a quick, easy and cost-effective way to create extra living space, invest in insulated garden rooms. Extra room without the hassles of messy building work or the stress of moving house. Double glazed and fully insulated with high quality materials, for a comfortable space all year round.

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Only 25% Deposit is needed for Dunster House Online Orders

Insulated Garden Rooms

For a quick, easy and cost-effective way to create extra living space, invest in insulated garden rooms. Extra room without the hassles of messy building work or the stress of moving house. Double glazed and fully insulated with high quality materials, for a comfortable space all year round.

Showing 49-60 of 76 products
Helena INSULATED Garden Office - Left
Quality Over Prices
Helena INSULATED Garden Office – Left
W4.5m x D3.5m / W15' x D11'

3 reviews

From £8,834.99 £10,144.99
Save £1,310
Helena INSULATED Garden Office - Left
Quality Over Prices
Helena INSULATED Garden Office – Left
W4.5m x D2.5m / W15' x D9'
From £8,079.99 £9,294.99
Save £1,215
Helena INSULATED Garden Office - Right
Quality Over Prices
Helena INSULATED Garden Office – Right
W5.5m x D3.5m / W18' x D11'
From £10,049.99 £11,514.99
Save £1,465
Helena INSULATED Garden Office - Right
Quality Over Prices
Helena INSULATED Garden Office – Right
W4.5m x D2.5m / W15' x D9'

12 reviews

From £8,079.99 £9,294.99
Save £1,215
Helena INSULATED Garden Office - Right
Quality Over Prices
Helena INSULATED Garden Office – Right
W4.5m x D3.5m / W15' x D11'
From £8,834.99 £10,144.99
Save £1,310
Rhine with uPVC INSULATED Log Cabin
30th Anniversary Offers on Garden Buildings
Rhine with uPVC INSULATED Log Cabin
W4m x D3m / W12'6" x D10'
Insulated 62mm Wall, Equivalent to 140mm U-Value

4 reviews

From £5,499.99 £6,779.99
Save £1,280
Severn with uPVC INSULATED Log Cabin
30th Anniversary Offers on Garden Buildings
Severn with uPVC INSULATED Log Cabin
W5m x D3m / W16' x D10'
Insulated 62mm Wall, Equivalent to 140mm U-Value

11 reviews

From £6,424.99 £7,899.99
Save £1,475
Severn with uPVC INSULATED Log Cabin
30th Anniversary Offers on Garden Buildings
Severn with uPVC INSULATED Log Cabin
W5m x D4m / W16' x D12'6"
Insulated 62mm Wall, Equivalent to 140mm U-Value

1 review

From £7,279.99 £8,184.99
Save £905
Terminator with uPVC INSULATED Log Cabin
Quality Over Prices
Terminator with uPVC INSULATED Log Cabin
W4m x D3m / W13' x D10'
Insulated 62mm Wall, Equivalent to 140mm U-Value
From £5,779.99 £7,114.99
Save £1,335
Titania INSULATED Garden Office
Quality Over Prices
Titania INSULATED Garden Office
W4.5m x D2.5m / W15' x D9'

6 reviews

From £7,534.99 £8,689.99
Save £1,155
Titania INSULATED Garden Office
30th Anniversary Offers on Garden Buildings
Titania INSULATED Garden Office
W5.5m x D2.5m / W18' x D9'
From £8,219.99 £10,544.99
Save £2,325
Titania INSULATED Garden Office
Quality Over Prices
Titania INSULATED Garden Office
W3.5m x D2.5m / W11' x D9'

72 reviews

From £6,629.99 £7,619.99
Save £990
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Showing 49-60 of 76 products
Only 25% Deposit is needed for online orders at Dunster House