From £88,120
VIBE CONSTRUCTION LIMITED is an established extension buildering business in CM18. We come highly recommended and provide competitive quotes for yo...
From £88,192
Trusted and professional extension builder in CM18. Experienced in all extension buildering work and keeping within budget and on quote. THE ROMAN ...
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 £87,760
Urban lofts and extensions ltd is an established extension buildering business in CM18. We come highly recommended and provide competitive quotes f...
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 £87,868
J G BUILDING SERVICES is a trusted extension builder serving customers in CM18 and the surrounding area. Contact us to today to get a competitive q...
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...
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 £88,252
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £88,084
With over 20 years of experience we specialise in fit-outs and maximising your living space. Lofts, extensions, basements, new builds and domestic ...

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 CM18.
| 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 Ware | £47 | £296 |
| Two Storey Extension near Epping Forest | £44 | £273 |
| Two Storey Extension near Loughton | £44 | £273 |
| Two Storey Extension near Cheshunt | £48 | £285 |
| Two Storey Extension near Bishop's Stortford | £42 | £264 |
| Two Storey Extension near Hertford | £46 | £289 |
| Two Storey Extension near East Hertfordshire | £44 | £289 |
| Two Storey Extension near Romford | £45 | £276 |
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 - £17,886

Two storey extension - £88,578

Build a timber frame extension - £26,386

Build a swimming pool - £81,386

Single storey extension - £62,712

Side return extension - £45,838

Install an RSJ - £2,586

Outbuilding - £10,386

Build a Mansard loft conversion - £52,386

Loft conversion - £37,365

Build a kitchen extension - £42,386

Hip to gable loft conversion - £42,386

Granny annexe - £87,386

Garden office - £10,386

Convert a Garage - £16,386

Garage - £18,886

Build a flat roof extension - £22,386

Build a dormer loft conversion - £42,386

Concrete foundations - £6,636

Convert a bungalow loft - £29,386

Convert a basement - £41,838