From £87,868
J G BUILDING SERVICES is a trusted extension builder serving customers in CM19 and the surrounding area. Contact us to today to get a competitive q...
From £88,192
Trusted and professional extension builder in CM19. Experienced in all extension buildering work and keeping within budget and on quote. THE ROMAN ...
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 £88,000
Our building services company Added Space Ltd have over fifty years combined experience. We have been helping customers in Harlow and the surroundi...
From £88,120
VIBE CONSTRUCTION LIMITED is an established extension buildering business in CM19. We come highly recommended and provide competitive quotes for yo...
From £87,760
Urban lofts and extensions ltd is an established extension buildering business in CM19. We come highly recommended and provide competitive quotes f...
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 £88,252
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £88,252
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 £88,528
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

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.
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| 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 Cheshunt | £48 | £286 |
| Two Storey Extension near Epping Forest | £44 | £273 |
| Two Storey Extension near Loughton | £44 | £273 |
| Two Storey Extension near Hertford | £46 | £289 |
| Two Storey Extension near Bishop's Stortford | £42 | £264 |
| Two Storey Extension near East Hertfordshire | £44 | £289 |
| Two Storey Extension near Welwyn Garden City | £42 | £268 |
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