The 10 extension builders from Google's results for Swindon, ranked on Google rating, online presence and other factors. Updated 10 September 2026.
on GoogleSwindon
Home extensions, loft conversions, and garage transformations are carried out by Co Mplete Construction Swindon. Operating in Swindon and neighbouring areas, the business also builds new houses and executes complete domestic renovations.
on GoogleDarby Cl, Swindon
A.P. Berrystone provides general building and extension services in Swindon.
01793 613300 The Pembroke Centre, Darby Cl, Swindon SN2 2PQ
on GoogleSwindon
Brick and Build constructs custom house extensions across Swindon, Wiltshire, and the Cotswolds. Their building services include extending kitchens, adding bedrooms, and constructing home offices to alter existing residential layouts.
01793 847492 16 Colebrook Rd, Swindon SN3 4EA
on GoogleSwindon
Home Plan Design draws architectural plans for home extensions, loft conversions, garage conversions, and new builds in Swindon and Wiltshire. They manage planning permission paperwork, building regulation applications, and change-of-use submittals for residential and commercial clients.
on GoogleSwindon
Phoenix Extensions provides residential conversions and house extensions in Swindon, Cirencester, Wanborough, Marlborough, and surrounding Wiltshire locations. Their building work focuses on turning existing house layouts into expanded domestic spaces.
7 Anise Cl, Swindon SN2 2SQ
on GoogleUnit B Athena Ave, Swindon
Twc Home carries out home extension projects for residential properties located across Wiltshire and Oxfordshire.
01793 781413 Elgin Industrial Estate, Unit B Athena Ave, Swindon SN2 8EJ
Swindon
JS Extensions carries out domestic home extensions, property renovations, and loft conversions across Swindon. Work includes installing new kitchens and bathrooms, building orangeries, and undertaking garage or internal alterations. The company also handles flooring repairs, general maintenance, and insurance-related restoration projects.
Swindon
Quickkit Build provides extension building services in Bath.
Swindon
This directory page lists building and extension specialists serving Swindon, including contractors that handle property refurbishments, maintenance, and house conversions.
Swindon
Fitted furniture is crafted and installed by West London Carpentry and Decoration for domestic clients. Serving West London and the surrounding counties, the business also undertakes property extension projects.
In Swindon, single storey, per m² typically costs £1,800 – £2,500. Labour in Wiltshire is in line with the UK median, which accounts for most of the difference from the same job elsewhere.
These are the firms from Google's results for "house extensions swindon". They are ranked on Google rating, online presence and other factors.
The figures above are Swindon ranges. These explain what drives them, so you can read a quote properly.
Per-square-metre prices for single-storey, two-storey, side return and kitchen extensions, costs by size, the fees outside the build price, and planning limits by nation.
The permitted development limits for extensions, lofts, porches and outbuildings in England, where the rights do not apply, what prior approval and a certificate cost, and how Wales, Scotland and NI differ.
When the Party Wall Act applies, which notice to serve and how far ahead, what your neighbour can do, what a surveyor's award costs, and the rules in Scotland and NI.
Under permitted development, three metres for a terrace or semi and four for a detached, doubled to six and eight under the prior approval process. Height, materials and how much garden you cover all carry separate limits, and none of it applies in a conservation area.
If you are excavating within three metres of a neighbour's foundations or building on the boundary, yes. You must serve notice two months before work starts. Skipping it is the most common reason extension projects stall.