Extend your SG5 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 SG5? To see prices and availability for your job click green button.

HaMuch is Excellent

How HaMuch saves you money

Post your job for free

Post your job for free

We send your job to ALL SG5 extension builders

Compare quotes

Compare quotes

Available extension builders in SG5 reply

Save Money

Save Money

Select your affordable SG5 extension builder

Post your job

From £22,384

Last active Nov 26
Get quotes

HB Construction

Experienced extension builder ready to quote for your work. HB Construction is the best extension builder in SG5. No obligation free quotes and man...

From £22,208

Last active Jul 26
Get quotes

WILLMOTT DIXON CONSTRUCTION LI

Need an Extension Builder in SG5? WILLMOTT DIXON CONSTRUCTION LI has been helping local clients (20 mile radius) with their extension buildering jo...

From £22,488

Last active Apr 26
Get quotes

M SPINDLER CONSTRUCTION LTD

Need an Extension Builder in SG5? M SPINDLER CONSTRUCTION LTD has been helping local clients (20 mile radius) with their extension buildering jobs ...

From £22,408

Get quotes

M P BUILDING LIMITED

M P BUILDING LIMITED is an established and experienced local extension builder in SG5. Please contact us for a free, no obligation quote and compet...

From £21,704

Get quotes

L P L Property Services Limited

Need an Extension Builder in SG5? L P L Property Services Limited has been helping local clients (20 mile radius) with their extension buildering j...

From £22,360

Get quotes

Specialist Building Refurbishm

Experienced extension builder ready to quote for your work. Specialist Building Refurbishm is the best extension builder in SG5. No obligation free...

From £22,328

Get quotes

David Douglas Developments

Our building services company David Douglas Developments has over 30 years’ experience, and built an established reputation of providing customer...

From £22,288

Get quotes

MG Design & Build

Realise Your Luxury Dream Home With The Design And Build Partner You Can Trust.At MG Design & Build we have over 25 years of experience in the cons...

From £22,168

Get quotes

Gilbert & Gregson Construction Ltd

Need an Extension Builder in SG5? Gilbert & Gregson Construction Ltd has been helping local clients (20 mile radius) with their extension builderin...

From £22,128

Get quotes

Draincall Services Ltd

Draincall Services Ltd is a trusted extension builder serving customers in SG5 and the surrounding area. Contact us to today to get a competitive q...

Flat roof extension cost in SG5

Estimates for build a flat roof extension near SG5

A flat roof extension ranges from the cheapest of £21,704 (L P L Property Services Limited based in SG5) to the dearest of £22,488 (M SPINDLER CONSTRUCTION LTD based in SG6), 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 SG5 by posting a job with HaMuch. We'll send it to extension builders in SG5.


Estimates for common extension builder jobs in SG5;

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...