From £6,138
Relax... you have found a reliable extension builder in Crystal Palace. South London Conversions Ltd. is a friendly and reliable company based in C...
From £6,338
Mesoni Ltd is a trusted extension builder serving customers in Crystal Palace and the surrounding area. Contact us to today to get a competitive qu...
From £6,330
Experienced extension builder ready to quote for your work. LivingFunky is the best extension builder in Crystal Palace. No obligation free quotes ...
From £6,682
We are a family run local business that was founded in 2007. Universal Plastering Ltd provides a wide variety of building and plastering services i...
From £6,578
Trusted and professional extension builder in Crystal Palace. Experienced in all extension buildering work and keeping within budget and on quote. ...
From £6,394
Watch our short video highlighting all our expertise and services here:
more than 10 y...
From £6,562
Urban London Development is an established extension buildering business in Crystal Palace. We come highly recommended and provide competitive quot...
From £6,538
Martin's Builders & Decorators is a trusted extension builder serving customers in Crystal Palace and the surrounding area. Contact us to today to ...
From £6,290
We specialise in residential development and modernisation from a kitchen extension to a new build, we have the capacity and diversity to deliver.A...
From £6,602
We are Parallax and specialise in Construction Project Management and Design and Build with year long experience in the London high end residential...

Concrete foundations range from the £6,138 (South London Conversions Ltd. based in SE19) to £6,682 (Universal Plastering Ltd based in SE19) in Crystal Palace.
Comparing extension builders estimates for laying concrete foundations gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Find out the exact cost of laying concrete foundations in Crystal Palace by posting a job with HaMuch. We will send it to extension builders who can give you a detailed quote.
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 - £17,695

Two storey extension - £88,293

Build a timber frame extension - £26,195

Build a swimming pool - £81,195

Single storey extension - £58,904

Side return extension - £43,696

Install an RSJ - £2,395

Outbuilding - £10,195

Build a Mansard loft conversion - £52,195

Loft conversion - £35,580

Build a kitchen extension - £42,195

Hip to gable loft conversion - £42,195

Granny annexe - £87,195

Garden office - £10,195

Convert a Garage - £16,195

Garage - £18,695

Build a flat roof extension - £22,195

Build a dormer loft conversion - £42,195

Concrete foundations - £6,445

Convert a bungalow loft - £29,195

Convert a basement - £39,696