Extend your Chelmsford with an extension

A flat roof extension is a great way to add extra space to your home without splashing out on the costs of a pitched roof extension. Often exempt from planning permission rules, you can build a flat roof extension up to 3 metres in height as long as it's not visible from a road. But how much do they cost in Chelmsford? To see prices and availability for your job click green button.

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From £21,824

Last active Jul 26
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CWN Developments Ltd

Location

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...

From £22,104

Last active Jul 26
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Art Developments

Trusted and professional extension builder in Chelmsford. Experienced in all extension buildering work and keeping within budget and on quote. Art ...

From £22,360

Last active Jul 26
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Mr.

Ian Young

Location

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...

From £22,024

Last active Jul 26
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NEVENDON CONSTRUCTION LTD

Relax... you have found a reliable extension builder in Chelmsford. NEVENDON CONSTRUCTION LTD is a friendly and reliable company based in Chelmsfor...

From £21,896

Last active Jul 26
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Newman Multi Trade Services

Location

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...

From £22,128

Last active Jul 26
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Martin Womersley Building Services

Martin Womersley Building Services is an established extension buildering business in Chelmsford. We come highly recommended and provide competitiv...

From £21,912

Last active Jul 26
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Prestige Roofing Contractors Ltd

Location

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...

From £21,888

Last active Jul 26
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Storm Roofing Essex

Location

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...

From £21,896

Last active Jun 26
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Mark scrutton

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...

From £22,264

Last active Jun 26
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Billericay Loft Conversions

Billericay Loft Conversions is a trusted extension builder serving customers in Chelmsford and the surrounding area. Contact us to today to get a c...

Flat roof extension cost in Chelmsford

Estimates for build a flat roof extension near Chelmsford

A flat roof extension ranges from the cheapest of £21,824 (CWN Developments Ltd based in CM2) to the dearest of £22,360 (Mr. based in CM1), 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 Chelmsford by posting a job with HaMuch. We'll send it to extension builders in Chelmsford.


Estimates for common extension builder jobs in Chelmsford;

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.

More extensions & conversions cost guides...