Extend your Northamptonshire 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 Northamptonshire? 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 Northamptonshire extension builders

Compare quotes

Compare quotes

Available extension builders in Northamptonshire reply

Save Money

Save Money

Select your affordable Northamptonshire extension builder

Post your job

From £21,744

Last active Apr 26
Get quotes

Charlotte Elizabeth Projects

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

From £21,728

Get quotes

K B CONTRACTORS (IND) LTD

Ken Burton

Experienced house builder. Eco structures from Denmark as well as conventional build. Extensions. Bathrooms. Kitchens and support steels when requi...

From £21,616

Get quotes

Natural Structures Limited

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

From £21,760

Get quotes

BHM Leicester

Experienced extension builder ready to quote for your work. BHM Leicester is the best extension builder in Northamptonshire. No obligation free quo...

From £21,576

Get quotes

Langton Homes

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

From £21,472

Get quotes

Ascot Property Solutions Limited

Location

Northamptonshire, NN17

Ascot Property Solutions Limited is an established and experienced local extension builder in Northamptonshire. Please contact us for a free, no ob...

From £21,600

Get quotes

New Revival - Construction Management

Location

Northamptonshire, NN6

New Revival - Construction Management is a trusted extension builder serving customers in Northamptonshire and the surrounding area. Contact us to ...

Flat roof extension cost in Northamptonshire

Estimates for build a flat roof extension near Northamptonshire

A flat roof extension ranges from the cheapest of £21,472 (Ascot Property Solutions Limited based in NN17) to the dearest of £21,760 (BHM Leicester based in LE8), 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 Northamptonshire by posting a job with HaMuch. We'll send it to extension builders in Northamptonshire.


Estimates for common extension builder jobs in Northamptonshire;

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...