The 10 extension builders from Google's results for Gloucester, ranked on Google rating, online presence and other factors. Updated 10 September 2026.
on GoogleChurch Rd, Cheltenham
QBD installs house extensions across Cheltenham and Gloucester to create additional bedrooms, offices and playrooms. The company also supplies and fits windows and doors for residential properties in the region.
01242 530300 Unit 5, Church Farm, Church Rd, Cheltenham GL53 0QJ
on GoogleStaverton Bridge, Cheltenham
PSK Architect designs single-storey, two-storey and garage extensions for residential properties in Cheltenham, Gloucester and surrounding Gloucestershire. The practice provides initial consultations to review design options and space potential.
01242 304477 Staverton Technology Park, Unit C1 Herrick Way, Staverton Bridge, Cheltenham GL51 6TQ
on GoogleUpton St Leonards, Gloucester
Larian Construction manages house extensions and new builds across Gloucester and Gloucestershire. Their team oversees initial consultations, design, planning permission applications and final building work, alongside bathroom fitting.
01452 619871 Manor Farm, Rear of Bullins, High St, Upton St Leonards, Gloucester GL2 8DL
on GoogleBrockworth, Gloucester
New builds, property extensions and internal refurbishments are completed by Longlevens Building across Gloucester and Cheltenham. The firm carries out initial site visits and handles projects from foundations through to final internal finishes.
01452 412278 6 Pegasus Centre, Hurricane Rd, Brockworth, Gloucester GL3 4FF
on GoogleCheltenham
Newman Construction & Sons Ltd, a building firm in Cheltenham, also works in Gloucester and Bishops Cleeve. It extends houses, converts garages and basements, and carries out building alterations and refurbishments for household, business and industrial clients.
07876 680511 352 Swindon Rd, Cheltenham GL51 9JZ
on GoogleStaverton Bridge, Cheltenham
Thorn Homes carries out commercial and residential construction projects across Cheltenham and Gloucestershire. The company builds property extensions ranging from garage additions to two-storey structures, as well as new home builds. It also offers RIBA chartered architectural services and roofing work.
01452 714200 Staverton Technology Park, Unit C1 Herrick Way, Staverton Bridge, Cheltenham GL51 6TQ
Gloucester
L & W Building Contractors builds house extensions, property conversions and new homes across the Gloucester region. The team provides new builds to shell or turnkey finishes alongside complete house renovations.
Gloucester
Quickkit Build provides extension building services in Bath.
Gloucester
LH Development Ltd carries out house extensions and loft conversions for homeowners across Gloucestershire. The team works on residential building projects to remodel existing living areas and manage all internal finishes.
Gloucester
CK Architectural produces designs and handles building regulations for loft conversions and house extensions in Gloucester, Cheltenham and Stroud. The firm assists homeowners in converting existing roof spaces into functional living areas.
01452 643010 Eastern Ave, Gloucester GL1 1AA
In Gloucester, single storey, per m² typically costs £1,700 – £2,400. Labour in Gloucestershire runs 4% below 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 gloucester". They are ranked on Google rating, online presence and other factors.
The figures above are Gloucester 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.