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The Original Roofing Company are here to help customers who need an Extension Builder in CR5. We offer a competitive rate to complete all your exte...
Relax... you have found a reliable extension builder in CR5. Neats General Builders is a friendly and reliable company based in CR5 who consider no...
Vaughan Pain
Hooley, CR5
First Trade Force are here to help customers who need an Extension Builder in CR5. We offer a competitive rate to complete all your extension build...
EKJ Construction are here to help customers who need an Extension Builder in CR5. We offer a competitive rate to complete all your extension builde...
P4 Services a building company in Banstead, Surrey pride itself on having high standards. If you are looking for a building company for a new kitch...
From £42,400
Experienced extension builder ready to quote for your work. O G Electricals is the best extension builder in CR5. No obligation free quotes and man...
From £42,464
Clive D'Laselle
Coulsdon, CR5
C D Construction are here to help customers who need an Extension Builder in CR5. We offer a competitive rate to complete all your extension builde...
From £41,976
Robert Dixon
R D Builders is an established extension buildering business in CR5. We come highly recommended and provide competitive quotes for your work.
From £42,640
Richard Rhodes
Trusted and professional extension builder in CR5. Experienced in all extension buildering work and keeping within budget and on quote. G&R CONSTRU...
From £42,320
G F Hobbs t/a G & N Builders is an established and experienced local extension builder in CR5. Please contact us for a free, no obligation quote an...

In CR5, prices for dormer loft conversions range from £41,480 (First Trade Force based in Cr5) to £42,640 (G&R CONSTRUCTION LTD based in CR8), 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 CR5. Post your job on HaMuch now and we'll put you in touch with available extension builders.
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.

Underpin a building - £17,706

Two storey extension - £88,310

Build a timber frame extension - £26,206

Build a swimming pool - £81,206

Single storey extension - £59,128

Side return extension - £43,822

Install an RSJ - £2,406

Outbuilding - £10,206

Build a Mansard loft conversion - £52,206

Loft conversion - £35,685

Build a kitchen extension - £42,206

Hip to gable loft conversion - £42,206

Granny annexe - £87,206

Garden office - £10,206

Convert a Garage - £16,206

Garage - £18,706

Build a flat roof extension - £22,206

Build a dormer loft conversion - £42,206

Concrete foundations - £6,456

Convert a bungalow loft - £29,206

Convert a basement - £39,822