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 PO4. No obligation free quotes a...
Experienced extension builder ready to quote for your work. Portsmouth Building Repairs is the best extension builder in PO4. No obligation free qu...
Peter Fenn Property is a trusted extension builder serving customers in PO4 and the surrounding area. Contact us to today to get a competitive quot...
JKS Property is an established and experienced local extension builder in PO4. Please contact us for a free, no obligation quote and competitive ra...
M.K Warner Building Services is an established extension buildering business in PO4. We come highly recommended and provide competitive quotes for ...
BUILD PROJECT LIMITED are here to help customers who need an Extension Builder in PO4. 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 PO4. No obligation free...
Jason Wall
Build Light Group is an established and experienced local extension builder in PO4. Please contact us for a free, no obligation quote and competiti...

In PO4, prices for dormer loft conversions range from £41,824 (P Pattison based in PO12) to £42,176 (JKS Property based in PO5), but how much your conversion costs will vary depending on the size of your property, how easy access to your roof is and what you want to use the space for.
The best way to get an accurate price is to compare quotes from extension builders in PO4. Post your job on HaMuch now and we'll put you in touch with available extension builders.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Dormer Loft Conversion near Portsmouth | £36 | £250 |
| Build A Dormer Loft Conversion near Gosport | £35 | £246 |
| Build A Dormer Loft Conversion near Havant & Waterloo | £35 | £248 |
| Build A Dormer Loft Conversion near Havant | £35 | £249 |
| Build A Dormer Loft Conversion near Ryde | £34 | £255 |
| Build A Dormer Loft Conversion near Lee-on-the-Solent | £35 | £249 |
| Build A Dormer Loft Conversion near Fareham | £35 | £250 |
| Build A Dormer Loft Conversion near Waterlooville | £36 | £250 |
| Build A Dormer Loft Conversion near Horndean | £36 | £254 |
| Build A Dormer Loft Conversion 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 - £17,502

Two storey extension - £88,004

Build a timber frame extension - £26,002

Build a swimming pool - £81,002

Single storey extension - £55,048

Side return extension - £41,527

Install an RSJ - £2,202

Outbuilding - £10,002

Build a Mansard loft conversion - £52,002

Loft conversion - £33,773

Build a kitchen extension - £42,002

Hip to gable loft conversion - £42,002

Granny annexe - £87,002

Garden office - £10,002

Convert a Garage - £16,002

Garage - £18,502

Build a flat roof extension - £22,002

Build a dormer loft conversion - £42,002

Concrete foundations - £6,252

Convert a bungalow loft - £29,002

Convert a basement - £37,527