Build a mansard loft conversion in Loughton from £51,880

Mansard loft conversions are ideal if you want to maximise the space in your home. Extending your roof out into a flat roof with an almost vertical wall, they almost always require planning permission but can add significant value to your home. 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 Loughton extension builders

Compare quotes

Compare quotes

Available extension builders in Loughton reply

Save Money

Save Money

Select your affordable Loughton extension builder

Post your job

From £52,120

Rates verified Oct 26
Get quotes

SDS Constructions

Sean Smithers

Our building services company SDS Constructions has been established for many years and have been providing customers in Dagenham and the surroundi...

From £53,232

Rates verified Oct 26
Get quotes

Optimus Build Solutions

Vasile Boghean

Optimus Build Solutions delivers exceptional construction services in London and surronding areas. Specializing in bathroom and kitchen refurbishme...

From £52,400

Rates verified Oct 26
Get quotes

SC General Builders Ltd

SC General Builders Ltd are here to help customers who need an Extension Builder in Loughton. We offer a competitive rate to complete all your exte...

From £52,080

Last active Nov 26
Get quotes

ANGLE BUILDERS

ANGLE BUILDERS is an established and experienced local extension builder in Loughton. Please contact us for a free, no obligation quote and competi...

From £51,880

Get quotes

Can design and Construction

Erald Kanani

Member since August 2025

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

From £52,224

Last active Nov 26
Get quotes

Gems Building & Maintenance Services

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

From £53,584

Last active Nov 26
Get quotes

Propello

Ali Alagoz

Propello is an established and experienced local extension builder in Loughton. Please contact us for a free, no obligation quote and competitive ...

From £52,248

Last active Nov 26
Get quotes

Bspec Ltd

Mick Singh

At Building Services Contractors we pride ourselves on an efficient and friendly service, and strive to achieve 100% customer satisfaction.

From £52,240

Last active Nov 26
Get quotes

PHOENIX DEVELOPMNTS LONDON LTD

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

From £52,712

Last active Nov 26
Get quotes

Render

Experienced extension builder ready to quote for your work. Render is the best extension builder in Loughton. No obligation free quotes and many ha...

Mansard loft conversion cost in Loughton

Estimates for build a mansard loft conversion near Loughton

Mansard loft conversions range from the cheapest installation of £51,880 (Can design and Construction based in Ig11) to the dearest of around £53,584 (Propello based in E17).

While these estimates give you a good idea how much you'll pay for a mansard loft conversion, the only way to get an accurate price is to get real quotes from real builders.

Get quotes to install a mansard loft conversion in Loughton by posting a job with HaMuch and we'll send it to extension builders in Loughton. 


Estimates for common extension builder jobs in Loughton;

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...