Flat Roof Extension Cost

For bay window roofs expect to pay from 350 900 and for dormer window roofs between 700 1 300.

Flat roof extension cost.

About 15m 2 between 16 000 and 21 000 in total. 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. Meanwhile an estimate for the build cost of a double story extension would be roughly double the single story quote. You ll find small companies will usually charge 10 to 15 per cent less than large companies.

A typical conversion with a rear dormer in a mid terrace property costs around 35 000. A screen can be added for an additional cost of 3 000 to 4 000. 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. Flat roof cost per square metre.

Flat roof extension london. For a standard quality extension the cost of build calculates to about 1 000 m 2 to 1 400 m 2. More details can be seen in the table below. House extension cost calculator are you looking for more space or thinking of buying a house and extending it yourself.

Flat roof extensions cost from 700 lowest possible and can reach up to 3 000. The cost of a flat roof extension depends on the type of extension you are going for. 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. 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.

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. 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. 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. However given the nature of flat roof repair costs it can sometimes make sense to replace the entire roof.