Cre8tive Contractors Ltd are here to help customers who need an Extension Builder in Penge. We offer a competitive rate to complete all your extens...
Sebastian Banga
Banga decoration. Is Base in south London for number of year Banga decoration is a small company. Wich provide an excellent job to the custom...
We provide our clients with excellent service and quality. Whether you are looking to extend or upgrade, our professional team has the skills and e...
Vasi J
No Call out charges!
All Jobs Fully Insured and Guaranteed !!!
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
Robert Buci
Buci builders ltd is a trusted extension builder serving customers in Penge and the surrounding area. Contact us to today to get a competitive quot...
John Mcdonagh
Watch our short video highlighting all our expertise and services here:
more than 10 y...
Glenn Miller
Relax... you have found a reliable extension builder in Penge. Glenn Miller Builders Limited is a friendly and reliable company based in Penge who ...
Relax... you have found a reliable extension builder in Penge. L M G Building Services (London) Ltd is a friendly and reliable company based in Pen...
Experienced extension builder ready to quote for your work. Aviemore Building Contractors Ltd is the best extension builder in Penge. No obligation...
AAB Tile Installation & Repairs are here to help customers who need an Extension Builder in Penge. We offer a competitive rate to complete all your...

Underpinning ranges from £17,484 (RCB Group Design & Build based in SE21) to £18,700 (Banga Decoration based in CR7), but the final cost will depend on the method of underpinning used, how much of your foundations need underpinning and where you live.
Comparing extension builders estimates for underpinning gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
Get quotes to underpin your home in Penge by posting a job with HaMuch and we will send it to extension builders in Penge.
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 - £17,852

Two storey extension - £88,528

Build a timber frame extension - £26,352

Build a swimming pool - £81,352

Single storey extension - £62,040

Side return extension - £45,460

Install an RSJ - £2,552

Outbuilding - £10,352

Build a Mansard loft conversion - £52,352

Loft conversion - £37,050

Build a kitchen extension - £42,352

Hip to gable loft conversion - £42,352

Granny annexe - £87,352

Garden office - £10,352

Convert a Garage - £16,352

Garage - £18,852

Build a flat roof extension - £22,352

Build a dormer loft conversion - £42,352

Concrete foundations - £6,602

Convert a bungalow loft - £29,352

Convert a basement - £41,460