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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 25-36 of 121 products
Dominator Composite Garden Office – Glazed
Black Friday Deals on Garden Buildings
Dominator Composite Garden Office – Glazed
W2.5m x D2.5m / W8' x D8'
From £4,244.99 £4,458.99
Save £214
Dominator Composite Garden Office – Solid
Black Friday Deals on Garden Buildings
Dominator Composite Garden Office – Solid
W2.5m x D2.5m / W8' x D8'
From £4,094.99 £4,318.99
Save £224
Dominator Composite Garden Office – Solid
Black Friday Deals on Garden Buildings
Dominator Composite Garden Office – Solid
W2.5m x D2.5m / W8' x D8'
From £4,094.99 £4,318.99
Save £224
Dominator Pressure Treated Garden Office - Dwarf
Black Friday Deals on Garden Buildings
Dominator Pressure Treated Garden Office – Dwarf
W3.5m x D2.5m / W11' x D8'
From £6,234.99 £6,334.99
Dominator Pressure Treated Garden Office - Dwarf
Black Friday Deals on Garden Buildings
Dominator Pressure Treated Garden Office – Dwarf
W5.5m x D3.5m / W18' x D10'
From £9,864.99 £10,029.99
Dominator Pressure Treated Garden Office - Dwarf
Black Friday Deals on Garden Buildings
Dominator Pressure Treated Garden Office – Dwarf
W4.5m x D2.5m / W14' x D8'
From £7,364.99 £7,484.99
Dominator Pressure Treated Garden Office - Dwarf
Black Friday Deals on Garden Buildings
Dominator Pressure Treated Garden Office – Dwarf
W4.5m x D3.5m / W15' x D10'
From £8,554.99 £8,699.99
Dominator Pressure Treated Garden Office - Dwarf
Black Friday Deals on Garden Buildings
Dominator Pressure Treated Garden Office – Dwarf
W5.5m x D2.5m / W18' x D8'
From £8,564.99 £8,719.99
Dominator Pressure Treated Garden Office - Dwarf
Black Friday Deals on Garden Buildings
Dominator Pressure Treated Garden Office – Dwarf
W7.5m x D3.5m / W24' x D10'
From £12,084.99 £12,289.99
Dominator Pressure Treated Garden Office - Glazed
Black Friday Deals on Garden Buildings
Dominator Pressure Treated Garden Office – Glazed
W3.5m x D2.5m / W11' x D8'
From £6,124.99 £6,214.99
Dominator Pressure Treated Garden Office - Glazed
Black Friday Deals on Garden Buildings
Dominator Pressure Treated Garden Office – Glazed
W5.5m x D3.5m / W18' x D10'
From £9,754.99 £9,909.99
Dominator Pressure Treated Garden Office - Glazed
Black Friday Deals on Garden Buildings
Dominator Pressure Treated Garden Office – Glazed
W4.5m x D2.5m / W14' x D8'
From £7,254.99 £7,364.99
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Showing 25-36 of 121 products
Only 25% Deposit is needed for online orders at Dunster House