Use sustainable materials and save money on your new extension

Timber frame extensions are becoming more and more popular as people understand their thermal properties, cost-effectiveness and general sustainability. Built quicker than masonry frame extensions, they generally cost less and can support a variety of design elements to help you create your dream extension. But how much will a timber frame extension cost in PO20?

Build a timber frame extension cost in PO20 - Sort by rates or availability

Whites Carpentry & Building

From £26,008

(last active 01/10/26)

Whites Carpentry & Building prides in delivering an excellent extension buildering service and value for money in PO20 and the surrounding areas. ...

R&B Property Improvements

From £27,096

(last active 01/10/26)

We are a Small Family run business with over 30 years experience in the building trade, Carpentry is my main trade, with NVQ Level 2.

SBS Building Services

From £26,144

(last active 28/09/26)

We are a small family run business with over 20 years experience in brickwork, bathroom/kitchen fitting, roofing, landscaping, fencing, tiling and ...

H P Building Services Sussex

From £25,992

Member since August 2026

H P Building Services Sussex is a one-stop solution for all your extension buildering needs. Establish over 10 years ago and covering 20 miles arou...

Futureways Design and Build

From £26,112

(last active 19/09/26)

Futureways Design and Build are here to help customers who need an Extension Builder in PO20. We offer a competitive rate to complete all your exte...

Park Building Services Ltd

From £25,752

(last active 19/09/26)

Park Building Services Ltd is a trusted extension builder serving customers in PO20 and the surrounding area. Contact us to today to get a competit...

Main Construction

From £26,440

(last active 19/09/26)

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

Main Construction provides a local, trusted extension bu...

Alan Pacy Builder

From £26,200

(last active 18/09/26)

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

GD Project Management Ltd

From £26,376

(last active 18/09/26)

Giles Dixon is an experienced Project Manager with over 30 years experience, having worked from the ground up starting in 1984 as an apprentice ele...

Regent Property Holdings Ltd

From £26,128

(last active 18/09/26)

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

Timber frame extension cost in PO20

Estimates for build a timber frame extension near PO20

A timber frame extension built in PO20 typically ranges from £25,752 (Park Building Services Ltd based in PO9) to £27,096 (R&B Property Improvements based in PO9), but this will vary depending on the size of your extension, the design features you'd like and what your soil is like for the foundations.

Comparing extension builders estimates for building a timber frame extension gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.

Get rates and quotes to build a timber frame extension in PO20 by posting a job with HaMuch and we'll send it to extension builders in PO20.


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Estimates for common extension builder jobs in PO20;

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.

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