Arshad Ali
We are a Design and Build company based in Hampshire. Proud of our roots, we try to be the very best in the way we go about our business. Friendly...
Luke Rees
General Building Services (Southampton) Ltd is a trusted extension builder serving customers in Romsey and the surrounding area. Contact us to toda...
Experienced extension builder ready to quote for your work. CSY Construction Ltd is the best extension builder in Romsey. No obligation free quotes...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Bailey Construction Services are here to help customers who need an Extension Builder in Romsey. We offer a competitive rate to complete all your e...
Experienced extension builder ready to quote for your work. Grant Construction is the best extension builder in Romsey. No obligation free quotes a...
Need an Extension Builder in Romsey? T & S Construction has been helping local clients (20 mile radius) with their extension buildering jobs for ma...
Trowel On is an established extension buildering business in Romsey. We come highly recommended and provide competitive quotes for your work.
The business offers a full design service for both kitchens and bathrooms.We work with you to make the best use of your space and find prod...
Alex Molyneux
Romsey, SO51
We specialise in Epoxy Resin and Polyurethane floor coatings and screeds (very durable and seamless flooring), designed for retail, factories, manu...

In Romsey, prices for dormer loft conversions range from £40,848 (Floortrak Limited based in SO51) to £42,192 (AAConcepts based in SO14), 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 Romsey. 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 Romsey | £32 | £230 |
| Build A Dormer Loft Conversion near Chandler's Ford | £34 | £245 |
| Build A Dormer Loft Conversion near Totton | £34 | £243 |
| Build A Dormer Loft Conversion near Eastleigh | £34 | £244 |
| Build A Dormer Loft Conversion near Southampton | £34 | £243 |
| Build A Dormer Loft Conversion near Test Valley | £37 | £261 |
| Build A Dormer Loft Conversion near New Forest | £32 | £245 |
| Build A Dormer Loft Conversion near Winchester | £39 | £283 |
| Build A Dormer Loft Conversion near Hedge End | £34 | £244 |
| 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 - £17,405

Two storey extension - £87,857

Build a timber frame extension - £25,905

Build a swimming pool - £80,905

Single storey extension - £53,096

Side return extension - £40,429

Install an RSJ - £2,105

Outbuilding - £9,905

Build a Mansard loft conversion - £51,905

Loft conversion - £32,858

Build a kitchen extension - £41,905

Hip to gable loft conversion - £41,905

Granny annexe - £86,905

Garden office - £9,905

Convert a Garage - £15,905

Garage - £18,405

Build a flat roof extension - £21,905

Build a dormer loft conversion - £41,905

Concrete foundations - £6,155

Convert a bungalow loft - £28,905

Convert a basement - £36,429