Dunster House

Addroom Conservatory Alternative House Extension Approx. W3m x D2.5m Various Sizes Available up to W5m x D3m

Updated at 17:50 on 9 November 2026
£5234.96
Buy It Now opens the retailer website. Availability and price can change at any time.
Deal details

About this offer

Step right up folks… gather round and feast your eyes on the latest thing to hit the garden extension market
Is it a conservatory Is it a garden room Its… well, its a bit of both
Heres a good selection of different sizes available (all currently discounted)… Or view them all here: dunsterhouse.co.uk/addice
3m x 3m Addroom, skylights – dunsterhouse.co.uk/addhts
5m x 3m Addroom, half windows – dunsterhouse.co.uk/adds-1
3m x 2.5m Vision1, left – dunsterhouse.co.uk/addhts
3m x 3m Vision2 – dunsterhouse.co.uk/addhts
4m x 3m Addroom, half windows – dunsterhouse.co.uk/adds-3
4m x 3m Addroom, modular – dunsterhouse.co.uk/add-3m
4m x 3m Vision1, left – dunsterhouse.co.uk/addhts
5m x 3m Addroom, full windows – dunsterhouse.co.uk/adds-2
3m x 3m Rendered Addroom – dunsterhouse.co.uk/add-3m
3m x 2.5m Addroom, half windows – dunsterhouse.co.uk/addm-1
4m x 3m Addroom with skylights – dunsterhouse.co.uk/adds-3
4m x 3m Addroom, side pent – dunsterhouse.co.uk/adds-4
4m x 2.5m Addroom – dunsterhouse.co.uk/adds-1
5m x 3m Vision1, right – dunsterhouse.co.uk/addhts
Introducing the Addroom Garden Room. Whether youre looking for extra space for a home gym, garden office, or lounge area, the Addroom provides a quicker and more cost-effective solution compared to a glass extension. It features full insulation and double glazing for year-round comfort. The uPVC windows and doors come with multi-point locking systems to ensure security.
Key Features
Insulated 140mm walls, 65mm roofing, 40mm floor
Customise to a configuration that works for you
Easy build DIY panel system for quicker install
Composite exterior. Long lasting, no need to treat yearly
Cost effective conservatory alternative
28mm toughened double glazed uPVC windows and doors
10 Year guarantee on pressure treated floor bearers

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