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Chelmsford, CM2
Relax... you have found a reliable extension builder in Chelmsford. CWN Developments Ltd is a friendly and reliable company based in Chelmsford who...
Trusted and professional extension builder in Chelmsford. Experienced in all extension buildering work and keeping within budget and on quote. Art ...
Ian Young
Chelmsford, CM1
Mr. is a trusted extension builder serving customers in Chelmsford and the surrounding area. Contact us to today to get a competitive quote for ext...
Relax... you have found a reliable extension builder in Chelmsford. NEVENDON CONSTRUCTION LTD is a friendly and reliable company based in Chelmsfor...
Chelmsford, CM1
Need to find an Extension Builder near you for all your extension buildering work?
Newman Multi Trade Services provides a local, trusted ex...
Martin Womersley Building Services is an established extension buildering business in Chelmsford. We come highly recommended and provide competitiv...
Chelmsford, CM1
Prestige Roofing Contractors Ltd are here to help customers who need an Extension Builder in Chelmsford. We offer a competitive rate to complete al...
Chelmsford, CM1
Storm Roofing Essex are here to help customers who need an Extension Builder in Chelmsford. We offer a competitive rate to complete all your extens...
Mark Scrutton
Mark scrutton is a trusted extension builder serving customers in Chelmsford and the surrounding area. Contact us to today to get a competitive qu...
Billericay Loft Conversions is a trusted extension builder serving customers in Chelmsford and the surrounding area. Contact us to today to get a c...

In Chelmsford, prices for dormer loft conversions range from £41,824 (CWN Developments Ltd based in CM2) to £42,360 (Mr. based in CM1), 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 Chelmsford. Post your job on HaMuch now and we'll put you in touch with available extension builders.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Dormer Loft Conversion near Chelmsford | £38 | £258 |
| Build A Dormer Loft Conversion near Billericay | £38 | £248 |
| Build A Dormer Loft Conversion near Witham | £36 | £240 |
| Build A Dormer Loft Conversion near Wickford | £39 | £255 |
| Build A Dormer Loft Conversion near Maldon | £36 | £244 |
| Build A Dormer Loft Conversion near Brentwood | £39 | £255 |
| Build A Dormer Loft Conversion near Braintree | £37 | £247 |
| Build A Dormer Loft Conversion near Basildon | £39 | £251 |
| Build A Dormer Loft Conversion near Rayleigh | £39 | £252 |
| Build A Dormer Loft Conversion near Thundersley | £38 | £251 |
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 - £17,530

Two storey extension - £88,044

Build a timber frame extension - £26,030

Build a swimming pool - £81,030

Single storey extension - £55,592

Side return extension - £41,833

Install an RSJ - £2,230

Outbuilding - £10,030

Build a Mansard loft conversion - £52,030

Loft conversion - £34,028

Build a kitchen extension - £42,030

Hip to gable loft conversion - £42,030

Granny annexe - £87,030

Garden office - £10,030

Convert a Garage - £16,030

Garage - £18,530

Build a flat roof extension - £22,030

Build a dormer loft conversion - £42,030

Concrete foundations - £6,280

Convert a bungalow loft - £29,030

Convert a basement - £37,833