Devscapes is an established extension buildering business in Portsmouth. We come highly recommended and provide competitive quotes for your work.
Chris Bond
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.
Steve Bannister
We are a small family run business with over 20 years experience in brickwork, bathroom/kitchen fitting, roofing, landscaping, fencing, tiling and ...
Rob Butler
Need to find an Extension Builder near you for all your extension buildering work?
Oakstone Developments provides a local, trusted extensio...
Park Building Services Ltd is a trusted extension builder serving customers in Portsmouth and the surrounding area. Contact us to today to get a co...
Tao Peskett
TP Developments are here to help customers who need an Extension Builder in Portsmouth. We offer a competitive rate to complete all your extension ...
O NEILL CONSTRUCTION LTD is an established extension buildering business in Portsmouth. We come highly recommended and provide competitive quotes f...
Portsmouth, PO2
Experienced extension builder ready to quote for your work. Shepperd Developments is the best extension builder in Portsmouth. No obligation free q...
Experienced extension builder ready to quote for your work. Portsmouth Building Repairs is the best extension builder in Portsmouth. No obligation ...

Comparing extension builders estimates for Loft conversion 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 of a loft conversion in Portsmouth by posting your job to extension builders in Portsmouth.
"Loft conversion in my bunglow. No plans" - PORTSMOUTH, job posted 10/03/23
"Loft conversion: I am asking for to have loft conversion done to my house which has 3 bedrooms. It is a mid terraced house. What I am looking for is to build 2 big bedrooms in the loft and to have with fitted wardrobes in both of the rooms as well make extra storage units too and also to build a..." - PORTSMOUTH, job posted 04/11/24
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Loft Conversion near Portsmouth | £36 | £250 |
| Loft Conversion near Gosport | £35 | £246 |
| Loft Conversion near Fareham | £35 | £250 |
| Loft Conversion near Lee-on-the-Solent | £35 | £249 |
| Loft Conversion near Havant & Waterloo | £35 | £248 |
| Loft Conversion near Havant | £35 | £249 |
| Loft Conversion near Waterlooville | £36 | £250 |
| Loft Conversion near Horndean | £36 | £254 |
| Loft Conversion near Ryde | £34 | £255 |
| 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 - £17,558

Two storey extension - £88,086

Build a timber frame extension - £26,058

Build a swimming pool - £81,058

Single storey extension - £56,152

Side return extension - £42,148

Install an RSJ - £2,258

Outbuilding - £10,058

Build a Mansard loft conversion - £52,058

Loft conversion - £34,290

Build a kitchen extension - £42,058

Hip to gable loft conversion - £42,058

Granny annexe - £87,058

Garden office - £10,058

Convert a Garage - £16,058

Garage - £18,558

Build a flat roof extension - £22,058

Build a dormer loft conversion - £42,058

Concrete foundations - £6,308

Convert a bungalow loft - £29,058

Convert a basement - £38,148