Find affordable PO18 extension builders

Prices range from cheapest £28/hour and £212/day (Living Builders Ltd) to £38/hour and £290/day (Ministry of the Interior) - average £33/hr and £238/day

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Local PO18 extension builders & latest jobs

G P H BUILDERS LTD

£29/hour

£222/day

(last active 18/09/26)

Been in the building trade for over 30years .have in that time worked all over the country on many different projects. 

Have city &...

A T Holmes & Son Chimney Sweep

£37/hour

£256/day

(last active 22/03/26)

A T Holmes & Son Chimney Sweep is a trusted extension builder serving customers in PO18 and the surrounding area. Contact us to today to get a comp...

Oak Constructions

£33/hour

£228/day

Oak Constructions is a trusted extension builder serving customers in PO18 and the surrounding area. Contact us to today to get a competitive quote...

M R Property Services

£32/hour

£222/day

I have been in the construction industry for 32 years. I am a member of the Federation of Master Builders, have the requisite 3rd party insurance i...

Living Builders Ltd

£28/hour

£227/day

We offer a complete design and build service for middle to high end residential projects , no project to small . We work within a 15 mile radius of...

Ministry of the Interior

£38/hour

£251/day

I'm Sarah Reed, Director at Ministry of the Interior. We are a unique company that provides full project management and interior design services ba...

James Building Services

£36/hour

£290/day

Work in the Bosham,Emsworth,Chichester area,build large or small extensions,allworkmen are top tradesmen,very reliable,leave job area clean on comp...

Bespoke Living Construction Ltd

£31/hour

£224/day

Need an Extension Builder in PO18? Bespoke Living Construction Ltd has been helping local clients (20 mile radius) with their extension buildering ...

Hardbase Construction Ltd

£33/hour

£228/day

Hardbase Construction offer a complete or part package for any of your building, refurbishments or alteration requirements. Keeping an eye on times...

77 Build Ltd

£37/hour

£257/day

Experienced extension builder ready to quote for your work. 77 Build Ltd is the best extension builder in PO18. No obligation free quotes and many ...

Hambrook Construction Limited

£38/hour

£269/day

We are a professional highly skilled construction company who specialise in all aspects of domestic construction and building projects, from bespok...

King and Drury

£31/hour

£212/day

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

King and Drury provides a local, trusted extension build...

Metal and Butter Limited

£32/hour

£227/day

Metal and Butter Limited is an established and experienced local extension builder in PO18. Please contact us for a free, no obligation quote and c...

CHT Building Solutions Ltd/Renaissance Orangeries

£32/hour

£223/day

Need an Extension Builder in PO18? CHT Building Solutions Ltd/Renaissance Orangeries has been helping local clients (20 mile radius) with their ext...

The most important thing is do avoid handing over cash or paying large sums in advance. Be wary of paying cash for a cheaper job, i.e. to avoid VAT, you may be going down a slippery slope of not doing things properly which may eventually mean your job is also not done properly.

Agree when you intend to pay, ideally after you are satisfied with the completed job. If it is a big job agree a schedule of staged payments which is fair to both parties.

To avoid bad tradespeople and to ensure you can find them should they not answer a mobile;

  • Get proper contact details and check them yourself
  • Check if the company is verified on the Companies House website
  • Get phone details, ideally a land line or 0800 number and check it
  • Get a physical office address

Get quotes in writing by email or in person if possible. Getting quotes online or by text is ok (make sure you accept the offer by replying). For large projects make a written agreement, schedule of works and snagging plans as part of a working document. Also;

  • Agree expected quality of workmanship and materials in advance
  • When will work start and when will project be finished, what happens if project over runs ?
  • How long is the guarantee on work and materials eg 12 months
  • Discuss onsite behaviour in advance (no smoking, swearing or using mobile phones for non-work purposes)
  • Agree that your Extension Builder will remove all debris and rubbish and what level of tidying up you want after job

Compare PO18 extension builders rates

Job estimates from extension builders near you

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...

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