Extend your Harlow 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 Harlow? To see prices and availability for your job click green button.

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From £22,408

Last active Oct 26
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Jon Howard Construction Ltd

Jon Howard Construction Ltd is a trusted extension builder serving customers in Harlow and the surrounding area. Contact us to today to get a compe...

From £25,152

Last active Oct 26
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Essex loft extensions Ltd

Colin

Location

Harlow, CM20

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 £22,400

Last active Aug 26
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D C Salsbury Builders

D C Salsbury Builders is an established and experienced local extension builder in Harlow. Please contact us for a free, no obligation quote and co...

From £21,984

Last active Aug 26
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All Roofing & Guttering

Experienced extension builder ready to quote for your work. All Roofing & Guttering is the best extension builder in Harlow. No obligation free quo...

From £21,912

Last active May 26
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J G BUILDING SERVICES

J G BUILDING SERVICES is a trusted extension builder serving customers in Harlow and the surrounding area. Contact us to today to get a competitive...

From £22,024

Last active May 26
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Nevill Design & Build

Dan Nevill

Nevill Design & Build specialises in high-quality house extensions, loft conversions, structural alterations, and full refurbishments. We’ve deli...

From £22,424

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Hopson Bros Services

Hopson Bros Services is a trusted extension builder serving customers in Harlow and the surrounding area. Contact us to today to get a competitive ...

From £22,224

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Groome & Sons Ltd

Experienced extension builder ready to quote for your work. Groome & Sons Ltd is the best extension builder in Harlow. No obligation free quotes an...

From £22,384

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D E BRACKEN BUILDING SERVICES

D E BRACKEN BUILDING SERVICES is an established and experienced local extension builder in Harlow. Please contact us for a free, no obligation quot...

From £22,168

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Mmaes Limited

Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Flat roof extension cost in Harlow

Estimates for build a flat roof extension near Harlow

A flat roof extension ranges from the cheapest of £21,912 (J G BUILDING SERVICES based in CM19) to the dearest of £25,152 (Essex loft extensions Ltd based in CM20), 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 Harlow by posting a job with HaMuch. We'll send it to extension builders in Harlow.


Estimates for common extension builder jobs in Harlow;

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...