The 10 extension builders from Google's results for Bromley, ranked on Google rating, online presence and other factors. Updated 10 September 2026.
on GoogleBromley
Murrins draws up architectural plans in Bromley for rear extensions, loft conversions and new builds, and prepares the drawings needed for planning permission and building regulations. Typical schemes include open-plan kitchen diners and extra bedrooms, and the firm also carries out property surveys and party wall surveying.
020 7112 8877 21-23 Elmfield Rd, Bromley BR1 1LT
on GoogleChislehurst
Build Away carries out bathroom design, tiling, plumbing, and complete installation work across Bromley and Chislehurst. The firm also builds loft conversions, home extensions, and kitchen refurbishments for residential clients.
020 8108 0388 55 Chislehurst Rd, Chislehurst BR7 5NP
on GoogleLondon
Alstruct Ltd provides house extensions, loft conversions and basement conversions for homeowners in Chiswick and West London. Its services also include groundworks, full property renovations and garden landscaping.
020 8080 8240 15B Raven Rd, London E18 1HB
on GoogleOrpington
Vas Contractors Ltd carries out house extensions and residential construction projects across Orpington and Bromley. Their team handles home improvements and general building work designed to enlarge existing living spaces for local clients.
07456 810811 51 Gillmans Rd, Orpington BR5 4LB
on GoogleBromley
Smiths of Bromley constructs home extensions and loft conversions across Bromley. Its projects range from small kitchen extensions through to large two-storey additions for residential properties.
020 8466 1582 House 2, Newman Flexible Workspace Commercial, 2a Newman Rd, Bromley BR1 1RJ
on GoogleCoulsdon
Taylord Loft Conversions delivers complete home extension services for residential properties in Coulsdon and Bromley. Their builders handle projects from initial design concepts through to completion, expanding living spaces for local homeowners.
07554 006240 171 Caterham Dr, Coulsdon CR5 1JR
on GoogleBromley
Simply Extend builds house and kitchen extensions across East and South London, covering areas such as Croydon, Lambeth and Wandsworth. The business manages residential builds through assigned project managers, handling groundworks, brickwork construction, plastering and internal fittings.
Bromley
Construction and hard landscaping services are provided by Davidrutland across South London, Bromley, and Croydon. The company handles house extensions as well as outdoor spatial improvements and garden layout changes.
Bromley
The Bromley Building Company designs and constructs rear, side, and double-storey extensions across Bromley and South East London. They handle all stages of the build, including site surveys, planning permission guidance, construction, and final finishing.
Bromley
Plus Rooms provides house and kitchen extension services to homeowners in Richmond-upon-Thames and across South West London. The company manages projects from design through to construction, handling planning regulatory requirements along the way. Its team also builds loft conversions.
In Bromley, single storey, per m² typically costs £2,100 – £2,900. Labour in Greater London runs 16% above 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 bromley". They are ranked on Google rating, online presence and other factors.
The figures above are Bromley 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.