Add extra space to your SW1 home from £40,208

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 £41,984

Last active Nov 26
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JK Doors

JK Doors is a trusted extension builder serving customers in SW1 and the surrounding area. Contact us to today to get a competitive quote for exten...

From £42,320

Last active Sep 26
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D & G Building & Decorating

Experienced extension builder ready to quote for your work. D & G Building & Decorating is the best extension builder in SW1. No obligation free qu...

From £42,376

Last active Sep 26
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CK Constructions & Development Ltd

CK Constructions & Development Ltd is a trusted extension builder serving customers in SW1 and the surrounding area. Contact us to today to get a c...

From £41,976

Last active Sep 26
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A to Z Builders Ltd

A to Z Builders Ltd are here to help customers who need an Extension Builder in SW1. We offer a competitive rate to complete all your extension bui...

From £42,248

Last active Sep 26
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Cornerstones Construction

Experienced extension builder ready to quote for your work. Cornerstones Construction is the best extension builder in SW1. No obligation free quot...

From £42,256

Last active Aug 26
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F & F Building Services

F & F Building Services is an established extension buildering business in SW1. We come highly recommended and provide competitive quotes for your ...

From £41,984

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Palm Property Developments Ltd

Experienced extension builder ready to quote for your work. Palm Property Developments Ltd is the best extension builder in SW1. No obligation free...

From £41,976

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KÖK London ltd.

Need an Extension Builder in SW1? KÖK London ltd. has been helping local clients (5 mile radius) with their extension buildering jobs for many yea...

From £42,152

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plansing

Plansing Ltd

Experience the best architectural design services with PLANSING, where we flawlessly integrate innovative architectural designer products to bring ...

From £40,208

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London Design And Build

London Design And Build

Here at London Design and Build, our team of architects, interior designers, structural engineers and contractors, offer a bespoke, turn-key servic...

Cost of dormer loft conversions in SW1

Estimates for build a dormer loft conversion near SW1

In SW1, prices for dormer loft conversions range from £40,208 (London Design And Build based in SW1A) to £42,376 (CK Constructions & Development Ltd based in WC1N), 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 SW1. Post your job on HaMuch now and we'll put you in touch with available extension builders.


Estimates for common extension builder jobs in SW1;

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...