Flat Roof Extension Cost

Average cost the average cost for a patio roof addition using low maintenance wood patterned aluminum runs for about 6 000 to 10 000 for an area of 20 by 20 feet as of 2011.

Flat roof extension cost.

With the extension cost calculator you can get a quick free rough estimate of at least some of the costs involved in building extra room s for your house. Flat roof cost per square metre. House extension cost calculator are you looking for more space or thinking of buying a house and extending it yourself. Well before you go dreaming of sky lights and kitchen islands take a look at our house extension cost calculator below to determine how much you may expect to pay for the labour costs in england and wales.

For a standard quality extension the cost of build calculates to about 1 000 m 2 to 1 400 m 2. You can expect to pay about 1 500 2 000 usd per m2 for a single story extension with variation depending on the four details listed above. A screen can be added for an additional cost of 3 000 to 4 000. Adding a wood lattice roof can range between 500 and 10 000.

You ll find small companies will usually charge 10 to 15 per cent less than large companies. By entering information about the extensions external size roof type number of storeys and the uk location an estimate of the building cost can be found. For bay window roofs expect to pay from 350 900 and for dormer window roofs between 700 1 300. A typical conversion with a rear dormer in a mid terrace property costs around 35 000.

Basic felt solutions cost around 50 per square metre for the material itself and more high end materials such as modern grp a form of fibreglass going up to 90 per square metre. Flat roof extension london. More details can be seen in the table below. Meanwhile an estimate for the build cost of a double story extension would be roughly double the single story quote.

This can range from 30k to 75k and above but this is dependent on many different factors such as the size of the flat roof extension. Size a small roof will be more affordable than a large roof. About 15m 2 between 16 000 and 21 000 in total. Flat roof extensions cost from 700 lowest possible and can reach up to 3 000.