From £88,528
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £88,036
Need an Extension Builder in CM17? Loft in Space London has been helping local clients (20 mile radius) with their extension buildering jobs for ma...
From £88,252
Welstrong Construction is a team of friends and brothers who enjoy working in the building industry and aim to make sure every customer is fully sa...
From £87,760
Urban lofts and extensions ltd is an established extension buildering business in CM17. We come highly recommended and provide competitive quotes f...
From £88,120
VIBE CONSTRUCTION LIMITED is an established extension buildering business in CM17. We come highly recommended and provide competitive quotes for yo...
From £88,600
Experienced extension builder ready to quote for your work. RICHARD MORRIS (CONSTRUCTION) is the best extension builder in CM17. No obligation free...
From £88,252
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £88,000
Our building services company Added Space Ltd have over fifty years combined experience. We have been helping customers in Harlow and the surroundi...
From £88,084
With over 20 years of experience we specialise in fit-outs and maximising your living space. Lofts, extensions, basements, new builds and domestic ...
From £92,728
We are small building company working for the residential and domestic properties? We work on all types of buildings creating Loft conversion and H...

Costs range from £87,760 (Urban lofts and extensions ltd based in cm20) to £92,728 (Essex loft extensions Ltd based in CM20), but these are just estimates. The best way to compare costs is to get real quotes from real builders.
Post your job on HaMuch and we'll send it to extension builders to CM17.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Two Storey Extension near Harlow | £43 | £288 |
| Two Storey Extension near Hoddesdon | £46 | £296 |
| Two Storey Extension near Bishop's Stortford | £42 | £264 |
| Two Storey Extension near Ware | £47 | £296 |
| Two Storey Extension near Epping Forest | £44 | £273 |
| Two Storey Extension near Loughton | £44 | £273 |
| Two Storey Extension near Cheshunt | £48 | £286 |
| Two Storey Extension near Hertford | £46 | £289 |
| Two Storey Extension near East Hertfordshire | £44 | £289 |
| Two Storey Extension near Romford | £45 | £275 |
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 - £17,924

Two storey extension - £88,636

Build a timber frame extension - £26,424

Build a swimming pool - £81,424

Single storey extension - £63,480

Side return extension - £46,270

Install an RSJ - £2,624

Outbuilding - £10,424

Build a Mansard loft conversion - £52,424

Loft conversion - £37,725

Build a kitchen extension - £42,424

Hip to gable loft conversion - £42,424

Granny annexe - £87,424

Garden office - £10,424

Convert a Garage - £16,424

Garage - £18,924

Build a flat roof extension - £22,424

Build a dormer loft conversion - £42,424

Concrete foundations - £6,674

Convert a bungalow loft - £29,424

Convert a basement - £42,270