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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

Human score    Trustpilot Stars    number of reviews    Trustpilot Logo

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 85-96 of 121 products
Dominator INSULATED Garden Office
Black Friday Deals on Garden Buildings
Dominator INSULATED Garden Office
W2.5m x D5.5m / W8' x D18'

1 review

From £6,199.99 £6,299.99
Dominator INSULATED Garden Office
Black Friday Deals on Garden Buildings
Dominator INSULATED Garden Office
W3.5m x D3.5m / W11'6" x D11'6"
From £4,999.99 £5,273.99
Save £274
Dominator INSULATED Garden Office
Black Friday Deals on Garden Buildings
Dominator INSULATED Garden Office
W3.5m x D3.5m / W11'6" x D11'6"
From £4,999.99 £5,273.99
Save £274
Dominator INSULATED Garden Office
Black Friday Deals on Garden Buildings
Dominator INSULATED Garden Office
W4.5m x D3.5m / W15' x D11'6"

3 reviews

From £5,899.99 £6,203.99
Save £304
Dominator INSULATED Garden Office
Black Friday Deals on Garden Buildings
Dominator INSULATED Garden Office
W3.5m x D4.5m / W11'6" x D15'
From £5,899.99 £6,203.99
Save £304
Dominator INSULATED Garden Office
Black Friday Deals on Garden Buildings
Dominator INSULATED Garden Office
W5.5m x D3.5m / W18' x D11'6"

2 reviews

From £6,024.99 £7,639.99
Save £1,615
Dominator INSULATED Garden Office (Side)
Black Friday Deals on Garden Buildings
Dominator INSULATED Garden Office (Side)
W2.5m x D2.5m / W8' x D8'

7 reviews

From £3,349.99 £3,499.99
Save £150
Helena INSULATED Garden Office
Helena INSULATED Garden Office
W7.5m x D3.5m / W24'6" x D11'

3 reviews

From £12,249.99 £13,239.99
Save £990
Helena INSULATED Garden Office - Left
Out Of Stock
Helena INSULATED Garden Office – Left
W5.5m x D3.5m / W18' x D11'
From £9,599.99 £10,049.99
Save £450
Helena INSULATED Garden Office - Left
Out Of Stock
Helena INSULATED Garden Office – Left
W4.5m x D3.5m / W15' x D11'

3 reviews

From £8,399.99 £8,834.99
Save £435
Helena INSULATED Garden Office - Left
Helena INSULATED Garden Office – Left
W4.5m x D2.5m / W15' x D9'

6 reviews

From £7,799.99 £8,079.99
Save £280
Helena INSULATED Garden Office - Right
Out Of Stock
Helena INSULATED Garden Office – Right
W5.5m x D3.5m / W18' x D11'
From £9,599.99 £10,049.99
Save £450
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Showing 85-96 of 121 products
Only 25% Deposit is needed for online orders at Dunster House