From £42,160
Greater London, SE13
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £42,040
Dule Vida Property Design Ltd is a trusted extension builder serving customers in SE13 and the surrounding area. Contact us to today to get a compe...
From £42,272
Lewisham, SE13
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £42,240
TP Building & Development Services Ltd is an established and experienced local extension builder in SE13. Please contact us for a free, no obligati...
From £42,216
London, SE13
Our building services company Demiri Builder Ltd has 15 years’ experience in the industry. We have been helping customers in Lewisham and the sur...
From £42,264
Trusted and professional extension builder in SE13. Experienced in all extension buildering work and keeping within budget and on quote. RR'S Build...
From £42,312
Greater London, SE13
Construction Surety is an established extension buildering business in SE13. We come highly recommended and provide competitive quotes for your wor...
From £42,272
Based in south east London and with over 30 years of experience in the construction sector, we offer a range of services including interior and ext...
From £42,152
Relax... you have found a reliable extension builder in SE13. S G Painting Contractor Ltd is a friendly and reliable company based in SE13 who cons...
From £42,072
Need to find an Extension Builder near you for all your extension buildering work?
JEM BUILDING CONTRACTORS LTD provides a local, trusted e...

In SE13, prices for dormer loft conversions range from £42,040 (Dule Vida Property Design Ltd based in SE13) to £42,312 (Construction Surety based in SE13), 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 SE13. Post your job on HaMuch now and we'll put you in touch with available extension builders.
"Dormer loft conversion" - SE3, job posted 01/01/70
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 - £17,700

Two storey extension - £88,300

Build a timber frame extension - £26,200

Build a swimming pool - £81,200

Single storey extension - £59,000

Side return extension - £43,750

Install an RSJ - £2,400

Outbuilding - £10,200

Build a Mansard loft conversion - £52,200

Loft conversion - £35,625

Build a kitchen extension - £42,200

Hip to gable loft conversion - £42,200

Granny annexe - £87,200

Garden office - £10,200

Convert a Garage - £16,200

Garage - £18,700

Build a flat roof extension - £22,200

Build a dormer loft conversion - £42,200

Concrete foundations - £6,450

Convert a bungalow loft - £29,200

Convert a basement - £39,750