Add extra space to your S18 home from £41,288

Dormer loft conversions are ideal if you want to add lots of extra space to your home. Adding a box-like structure or structures to the roof, you essentially extend the roofline to add significant square footage to your loft space. This makes dormer loft conversions one of the most popular loft conversion types, as they're ideal for adding a new main bedroom with en-suite or even a self-contained living space. To see prices and availability for your job click green button.

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From £42,344

Last active Nov 26
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AMB Joinery & Building Services

Trusted and professional extension builder in S18. Experienced in all extension buildering work and keeping within budget and on quote. AMB Joinery...

From £41,936

Last active Sep 26
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Dore Decor

Dore Decor are a family run business with over 30 years experience - we offer an extensive range of building services and are able to provide a ful...

From £41,288

Last active Sep 26
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JON WINDLE CONSTRUCTION

Jon Windle

46 years in the trade

From £42,368

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Compton Spares.com

Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

From £41,968

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R S Heating & Building Co

Trusted and professional extension builder in S18. Experienced in all extension buildering work and keeping within budget and on quote. R S Heating...

From £42,392

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Peak Roof Clean

Peak Roofclean offer an inexpensive way of permanently keeping your roof free of moss, lichens and algae. Not only is it 100% effective but...

From £42,072

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Cortworth Millhouse Design & Build

Need an Extension Builder in S18? Cortworth Millhouse Design & Build has been helping local clients (20 mile radius) with their extension builderin...

From £42,336

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Blenheim Park Developments

Blenheim Park Developments is an established and experienced local extension builder in S18. Please contact us for a free, no obligation quote and ...

Cost of dormer loft conversions in S18

Estimates for build a dormer loft conversion near S18

In S18, prices for dormer loft conversions range from £41,288 (JON WINDLE CONSTRUCTION based in S17) to £42,392 (Peak Roof Clean based in S42), but how much your conversion costs will vary depending on the size of your property, how easy access to your roof is and what you want to use the space for. 

The best way to get an accurate price is to compare quotes from extension builders in S18. Post your job on HaMuch now and we'll put you in touch with available extension builders.


Estimates for common extension builder jobs in S18;

Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

More extensions & conversions cost guides...