From £22,048
Trusted and professional extension builder in Broxbourne. Experienced in all extension buildering work and keeping within budget and on quote. WHIT...
From £22,392
Need an Extension Builder in Broxbourne? Samuele Paolini has been helping local clients (5 mile radius) with their extension buildering jobs for m...
From £22,184
Experienced extension builder ready to quote for your work. CC&D BUILDING LTD is the best extension builder in Broxbourne. No obligation free quote...
From £22,560
Our homes need to be regularly maintained and from time to time they need to be rejuvenated, modernised and enhanced. When it comes to building wor...
From £22,096
Experienced extension builder ready to quote for your work. Mr is the best extension builder in Broxbourne. No obligation free quotes and many happ...
From £21,984
JK Doors is a trusted extension builder serving customers in Broxbourne and the surrounding area. Contact us to today to get a competitive quote fo...
From £22,192
NIECEIC / NAAPIT GASSAFE WATER REGULATIONS We offer services towards completion of high end construction projects to dis...
From £22,312
skilled worker who specializes in completing a wide range of building and renovation projects
From £22,616
HOUSE BUILDING SERVICES LIMITED is a trusted extension builder serving customers in Broxbourne and the surrounding area. Contact us to today to get...
From £22,200
Relax... you have found a reliable extension builder in Broxbourne. Derryard Construction Ltd is a friendly and reliable company based in Broxbourn...

A flat roof extension ranges from the cheapest of £21,984 (JK Doors based in W1W) to the dearest of £22,616 (HOUSE BUILDING SERVICES LIMITED based in DA16), but these are just estimates. While they give you an idea of who will be better value, the best way to compare costs is to get real quotes.
Find out how much your flat roof extension will cost in Broxbourne by posting a job with HaMuch. We'll send it to extension builders in Broxbourne.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Hoddesdon | £46 | £296 |
| Build A Flat Roof Extension near Cheshunt | £48 | £285 |
| Build A Flat Roof Extension near Ware | £47 | £296 |
| Build A Flat Roof Extension near Hertford | £46 | £289 |
| Build A Flat Roof Extension near Epping Forest | £44 | £273 |
| Build A Flat Roof Extension near Potters Bar | £43 | £273 |
| Build A Flat Roof Extension near Loughton | £44 | £273 |
| Build A Flat Roof Extension near Harlow | £43 | £288 |
| Build A Flat Roof Extension near Welwyn Garden City | £42 | £268 |
| Build A Flat Roof Extension near Hatfield | £64 | £283 |
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 - £17,758

Two storey extension - £88,388

Build a timber frame extension - £26,258

Build a swimming pool - £81,258

Single storey extension - £60,168

Side return extension - £44,407

Install an RSJ - £2,458

Outbuilding - £10,258

Build a Mansard loft conversion - £52,258

Loft conversion - £36,173

Build a kitchen extension - £42,258

Hip to gable loft conversion - £42,258

Granny annexe - £87,258

Garden office - £10,258

Convert a Garage - £16,258

Garage - £18,758

Build a flat roof extension - £22,258

Build a dormer loft conversion - £42,258

Concrete foundations - £6,508

Convert a bungalow loft - £29,258

Convert a basement - £40,407