From £41,010
Relax... you have found a reliable extension builder in PO7. MC Architectural Design is a friendly and reliable company based in PO7 who consider n...
From £34,800
Maw Carpentry Services are here to help customers who need an Extension Builder in PO7. We offer a competitive rate to complete all your extension ...
From £38,670
As a family owned limited company of over 40 years, our focus on quality and service has seen our business thrive and grow, solely through recommen...
From £34,710
we're Specialists in the following
•roofing
•brickwork
•Repointing
...From £38,940
Relax... you have found a reliable extension builder in PO7. SLG Mills Building Services is a friendly and reliable company based in PO7 who consid...
From £36,330
With over 40 years of experience ARC Property Maintenance & Home Improvements Ltd has been providing a full range of structural repairs and buildin...
From £54,420
Need to find an Extension Builder near you for all your extension buildering work?
KC Fencing Ltd provides a local, trusted extension buil...
From £28,320
Need to find an Extension Builder near you for all your extension buildering work?
M G Home Improvements provides a local, trusted extensio...
From £35,970
Need an Extension Builder in PO7? CONSTRACT CONSTRUCTION SRVS LT has been helping local clients (20 mile radius) with their extension buildering jo...
From £24,270
Fifty years experience. Multi-trades, Electrical (C&G), Plumbing, Small building works, Maintenance & repair etc. NICEIC, ECA, Guild Master Cra...

Comparing extension builders estimates for a Convert a basement 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 to convert a basement in PO7 by posting a job with HaMuch and we will send it to extension builders in PO7.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Convert A Basement near Waterlooville | £31 | £213 |
| Convert A Basement near Horndean | £30 | £213 |
| Convert A Basement near Havant | £30 | £213 |
| Convert A Basement near Havant & Waterloo | £30 | £213 |
| Convert A Basement near Portsmouth | £31 | £216 |
| Convert A Basement near Fareham | £31 | £217 |
| Convert A Basement near Gosport | £30 | £215 |
| Convert A Basement near Lee-on-the-Solent | £31 | £217 |
| Convert A Basement near Locks Heath | £30 | £213 |
| Convert A Basement near Chichester | £31 | £216 |
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.

Underpin a building - £17,433

Two storey extension - £87,899

Build a timber frame extension - £25,933

Build a swimming pool - £80,933

Single storey extension - £53,656

Side return extension - £40,744

Install an RSJ - £2,133

Outbuilding - £9,933

Build a Mansard loft conversion - £51,933

Loft conversion - £33,120

Build a kitchen extension - £41,933

Hip to gable loft conversion - £41,933

Granny annexe - £86,933

Garden office - £9,933

Convert a Garage - £15,933

Garage - £18,433

Build a flat roof extension - £21,933

Build a dormer loft conversion - £41,933

Concrete foundations - £6,183

Convert a bungalow loft - £28,933

Convert a basement - £36,744