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Steve Bannister
We are a small family run business with over 20 years experience in brickwork, bathroom/kitchen fitting, roofing, landscaping, fencing, tiling and ...
Experienced extension builder ready to quote for your work. Shepperd Developments is the best extension builder in PO3. No obligation free quotes a...
Experienced extension builder ready to quote for your work. Portsmouth Building Repairs is the best extension builder in PO3. No obligation free qu...
Peter Fenn Property is a trusted extension builder serving customers in PO3 and the surrounding area. Contact us to today to get a competitive quot...
JKS Property is an established and experienced local extension builder in PO3. Please contact us for a free, no obligation quote and competitive ra...
M.K Warner Building Services is an established extension buildering business in PO3. We come highly recommended and provide competitive quotes for ...
BUILD PROJECT LIMITED are here to help customers who need an Extension Builder in PO3. We offer a competitive rate to complete all your extension b...
Experienced extension builder ready to quote for your work. JM Roofing & Building Services is the best extension builder in PO3. No obligation free...
Relax... you have found a reliable extension builder in PO3. SLG Mills Building Services is a friendly and reliable company based in PO3 who consid...
Steve Harris
Hi my name is Steve harris of hb builders we are based in portchester and have over 40 years of experience in the building trade we would be mor...

"Single storey extension" - GOSPORT, job posted 21/07/25
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Single Storey Extension near Portsmouth | £36 | £250 |
| Single Storey Extension near Gosport | £35 | £246 |
| Single Storey Extension near Havant & Waterloo | £35 | £248 |
| Single Storey Extension near Havant | £35 | £249 |
| Single Storey Extension near Waterlooville | £36 | £250 |
| Single Storey Extension near Fareham | £35 | £250 |
| Single Storey Extension near Lee-on-the-Solent | £35 | £249 |
| Single Storey Extension near Horndean | £36 | £254 |
| Single Storey Extension near Ryde | £34 | £255 |
| Single Storey Extension near Locks Heath | £33 | £240 |
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 - £17,506

Two storey extension - £88,010

Build a timber frame extension - £26,006

Build a swimming pool - £81,006

Single storey extension - £55,128

Side return extension - £41,572

Install an RSJ - £2,206

Outbuilding - £10,006

Build a Mansard loft conversion - £52,006

Loft conversion - £33,810

Build a kitchen extension - £42,006

Hip to gable loft conversion - £42,006

Granny annexe - £87,006

Garden office - £10,006

Convert a Garage - £16,006

Garage - £18,506

Build a flat roof extension - £22,006

Build a dormer loft conversion - £42,006

Concrete foundations - £6,256

Convert a bungalow loft - £29,006

Convert a basement - £37,572