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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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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 13-24 of 80 products
Addroom® Conservatory Alternative
Addroom® Conservatory Alternative
W5m x D3m / W16'6" x D10'
From £8,029.99
Addroom® Conservatory Alternative
Addroom® Conservatory Alternative
W5m x D3m / W16'6" x D10'
From £7,869.99
Addroom® Conservatory Alternative
Addroom® Conservatory Alternative
W5m x D3m / W16'6" x D10'
From £7,649.99
Addroom® Garden Room Brick Effect - Centre
Addroom® Garden Room Brick Effect – Centre
W4m x D3m / W13' x D10'
From £6,714.99 £7,754.99
Save £1,040
Addroom® Garden Room Brick Effect - Left
Addroom® Garden Room Brick Effect – Left
W4m x D3m / W13' x D10'
From £6,714.99 £7,754.99
Save £1,040
Addroom® Garden Room Brick Effect - Left
Addroom® Garden Room Brick Effect – Left
W5m x D3m / W16'6" x D10'
From £7,459.99 £8,609.99
Save £1,150
Addroom® Garden Room Brick Effect - Left
Addroom® Garden Room Brick Effect – Left
W3m x D3m / W10' x D10'
From £5,989.99 £6,909.99
Save £920
Addroom® Garden Room Brick Effect - Right
Addroom® Garden Room Brick Effect – Right
W5m x D3m / W16'6" x D10'
From £7,459.99 £8,609.99
Save £1,150
Addroom® Garden Room Brick Effect - Right
Addroom® Garden Room Brick Effect – Right
W4m x D3m / W13' x D10'
From £5,954.99 £6,874.99
Save £920
Addroom® Garden Room Brick Effect - Right
Addroom® Garden Room Brick Effect – Right
W3m x D3m / W10' x D10'
From £5,989.99 £6,909.99
Save £920
Addroom® Garden Room Brick Effect - Right Centre
Addroom® Garden Room Brick Effect – Right Centre
W5m x D3m / W16'6" x D10'
From £7,459.99 £8,609.99
Save £1,150
Addroom® Garden Room Brick Effect- Left Centre
Addroom® Garden Room Brick Effect- Left Centre
W5m x D3m / W16'6" x D10'
From £7,459.99 £8,609.99
Save £1,150
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Showing 13-24 of 80 products
Only 25% Deposit is needed for online orders at Dunster House