Loft conversions in Eastleigh from £31,425

Range from the cheapest Loft conversion £31,425 (Steve Lovett Builders based in SO18) to the dearest Loft conversion £41,250 (Boss based in SO23). To see prices and availability for your job click green button.

HaMuch is Excellent

Loft conversion cost in Eastleigh - Sort by rates or availability

From £41,250

Get quotes

Boss

Karl Builder

Member since October 2026

Hi we are a building company that have been working in the swindon area for many years we also work as far as bristol We do loft conversion. ...

From £33,450

Last active Nov 26
Get quotes

Andy's Building Services

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

From £35,550

Last active Oct 26
Get quotes

AAConcepts

Arshad Ali

We are a Design and Build company based in Hampshire. Proud of our roots, we try to be the very best in the way we go about our business. Friendly...

From £33,375

Last active Oct 26
Get quotes

ROB DINE CONSTRUCTION

ROB DINE CONSTRUCTION is an established and experienced local extension builder in Eastleigh. Please contact us for a free, no obligation quote and...

From £34,875

Last active Oct 26
Get quotes

Mobile Services

Need to find an Extension Builder near you for all your extension buildering work?

Mobile Services provides a local, trusted extension buil...

From £35,025

Last active Oct 26
Get quotes

Claytons Building and Roofing

Claytons Building and Roofing are here to help customers who need an Extension Builder in Eastleigh. We offer a competitive rate to complete all yo...

From £31,425

Last active Oct 26
Get quotes

Steve Lovett Builders

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

From £32,550

Last active Oct 26
Get quotes

General Building Services (Southampton) Ltd

Luke Rees

Location

Eastleigh, SO53

General Building Services (Southampton) Ltd is a trusted extension builder serving customers in Eastleigh and the surrounding area. Contact us to t...

From £35,400

Last active Oct 26
Get quotes

CSY Construction Ltd

Experienced extension builder ready to quote for your work. CSY Construction Ltd is the best extension builder in Eastleigh. No obligation free quo...

From £34,125

Last active Jul 26
Get quotes

Grant Construction

Experienced extension builder ready to quote for your work. Grant Construction is the best extension builder in Eastleigh. No obligation free quote...

Cheapest builders for loft conversion in Eastleigh

Estimates for loft conversion near Eastleigh

Comparing extension builders estimates for Loft conversion gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.

What to do - Get rates and quotes for the cost of a loft conversion in Eastleigh by posting your job to extension builders in Eastleigh.


Get extension builder rates instantly

Estimates for common extension builder jobs in Eastleigh;

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...