Experienced extension builder ready to quote for your work. J&J Building Solutions is the best extension builder in Balham. No obligation free quot...
Vasi J
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All aspects of Plumbing, Heating and Drains....
..."I am very pleased with the work carried out. All very clear and transparent." - ROMFORD,reviewed 10/01/18, KELLY
PW Construction & Renovation Ltd is a trusted extension builder serving customers in Balham and the surrounding area. Contact us to today to get a ...
Robert Buci
Buci builders ltd is a trusted extension builder serving customers in Balham and the surrounding area. Contact us to today to get a competitive quo...
Wahid Ali
I am a qualified, builder, electrician and plumber. I have been working in the construction industry for over 23 years and have built everything fr...
Experienced extension builder ready to quote for your work. D & G Building & Decorating is the best extension builder in Balham. No obligation free...
London Construction is an established and experienced local extension builder in Balham. Please contact us for a free, no obligation quote and comp...
Experienced extension builder ready to quote for your work. Cornerstones Construction is the best extension builder in Balham. No obligation free q...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Renaissance Timothy Brewer Ltd is an established extension buildering business in Balham. We come highly recommended and provide competitive quotes...

In Balham, prices for dormer loft conversions range from £41,984 (RCB Group Design & Build based in SE21) to £43,024 (Buci builders ltd based in SE27), 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 Balham. 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 - £17,774

Two storey extension - £88,412

Build a timber frame extension - £26,274

Build a swimming pool - £81,274

Single storey extension - £60,488

Side return extension - £44,587

Install an RSJ - £2,474

Outbuilding - £10,274

Build a Mansard loft conversion - £52,274

Loft conversion - £36,323

Build a kitchen extension - £42,274

Hip to gable loft conversion - £42,274

Granny annexe - £87,274

Garden office - £10,274

Convert a Garage - £16,274

Garage - £18,774

Build a flat roof extension - £22,274

Build a dormer loft conversion - £42,274

Concrete foundations - £6,524

Convert a bungalow loft - £29,274

Convert a basement - £40,587