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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

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Responsibly Sourced Timber
30+ Years Experience
10 Year Guarantee*
Free Delivery on Most Orders
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. Create a comfortable, year-round garden space with our insulated garden rooms.

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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. Create a comfortable, year-round garden space with our insulated garden rooms.

Showing 61-72 of 160 products
Addroom® Conservatory Alternative
Addroom® Conservatory Alternative
W3m x D2.5m / W10' x D8'
From £10,764.93
£6,997.20 with code sept35
Addroom® Conservatory Alternative
Addroom® Conservatory Alternative
W3m x D2.5m / W10' x D8'
From £10,554.95
£6,860.72 with code sept35
Addroom® Conservatory Alternative
Addroom® Conservatory Alternative
W3m x D2.5m / W10' x D8'
From £10,534.93
£6,847.70 with code sept35
Dominator Composite Pent Garden Office - Solid
Dominator Composite Pent Garden Office – Solid
W7.5m x D3.5m / W23'6" x D11'
From £18,697.86
£12,153.61 with code sept35
Severn with uPVC INSULATED Log Cabin
Insulated
Severn with uPVC INSULATED Log Cabin
W5m x D4m / W16' x D12'6"
Insulated 62mm Wall, Equivalent to 140mm U-Value

4 reviews

From £12,089.99
£7,858.49 with code sept35
Terminator with uPVC INSULATED Log Cabin
Insulated
Terminator with uPVC INSULATED Log Cabin
W4m x D3m / W13' x D10'
Insulated 62mm Wall, Equivalent to 140mm U-Value
From £9,764.94
£6,347.21 with code sept35
Dominator Classic Garden Office
Insulated
Dominator Classic Garden Office
W4.5m x D3.5m / W15' x D11'6"
From £10,338.93
£6,720.30 with code sept35
Dominator Classic Garden Office
Insulated
Dominator Classic Garden Office
W5.5m x D2.5m / W18' x D8'
From £9,813.93
£6,379.05 with code sept35
Dominator Classic Garden Office
Selling Fast!
(only 1 left)
Dominator Classic Garden Office
W7.5m x D3.5m / W24'6" x D12'
From £15,637.87
£10,164.62 with code sept35
Dominator Classic Garden Office
Insulated
Dominator Classic Garden Office
W2.5m x D5.5m / W8' x D18'
From £9,813.93
£6,379.05 with code sept35
Dominator Classic Garden Office
Insulated
Dominator Classic Garden Office
W4.5m x D2.5m / W15' x D8'

1 review

From £8,304.94
£5,398.21 with code sept35
Dominator Classic Garden Office Reverse Pent
Insulated
Dominator Classic Garden Office Reverse Pent
W2.5m x D4.5m / W8' x D15'
From £8,304.94
£5,398.21 with code sept35
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Showing 61-72 of 160 products
Only 25% Deposit is needed for online orders at Dunster House