How Much Does A Small Flat Roof Extension Cost

The average build cost figures used by the extension cost calculator are based on three different size ranges that reflect the economies of scale achieved by constructing larger extensions.

How much does a small flat roof extension cost.

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. The savings are primarily in the cost of building the superstructure especially the foundations walls and roof. Flat roof small rear extension estimated cost. Compared to moving home a house extension costs far less and is much less stressful.

Flat roof dormer cost. House extension cost calculator are you looking for more space or thinking of buying a house and extending it yourself. About 15m 2 between 16 000 and 21 000 in total. Flat roof small side return extension estimated cost.

Single storey kitchen dining room extension 25m 2 in total including fitting of kitchen 2 radiators move boiler 12 spot lights bi fold screen doors 3 velux windows full decoration all planning etc taken care of. Had 4 quotes ranging from 30000 to 48000 went with the cheapest quote. The larger a dormer is the lower its cost per square foot will be. More details can be seen in the table below.

Pitched roof medium side return extension estimated cost. Flat roof repairs when it comes to flat roof repair options simple patch repairs for flat roofs such as those on garages or extensions can cost a few hundred pounds. Detailed description of work actual price calculated cost. Meanwhile an estimate for the build cost of a double story extension would be roughly double the single story quote.

Average cost and size. The exact material you use will have an impact on the cost of the roof with basic felt solutions costing 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 but allowing unlimited options in terms of colour and generally being more long lasting. Flat roof 3m rear extension. The cost of replacing roof felt under tiles will be included in the overall tiled roof roof repair costs.

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. So the cost of an extension varies depending on the size and quality of the build. For a standard quality extension the cost of build calculates to about 1 000 m 2 to 1 400 m 2. Flat roofs have less roofing material but more siding so your cost will vary based on the price of the materials you choose.

24 500 for dormer 16 wide x 14 deep. Flat roof replacement costs. Flat roof medium side return extension estimated cost. For bay window roofs expect to pay from 350 900 and for dormer window roofs between 700 1 300.