The 10 loft conversions from Google's results for Clapham, ranked on Google rating, online presence and other factors. Updated 10 September 2026.
on GoogleLondon
Clapham Construction Service delivers loft conversions, home extensions, and house renovations across South London. The firm manages building work from initial consultation to final completion to create functional room expansions.
020 3950 7957 Ste 17, 264 Lavender Hill, London SW11 1LJ
on GoogleCroydon
SimplyEasy Refurbs builds dormer loft conversions and home extensions across Wandsworth and broader London areas. Its construction projects focus on increasing usable living area and natural light through custom roof transformations.
020 3648 9687 Airport House, 265 Purley Way, Croydon CR0 0XS
on GooglePopes Dr, London
LCCL Construction is a design and build company converting lofts, extending houses and renovating homes across East London. It works in areas such as Hackney, Walthamstow, Leyton and Bow, where much of the housing is Victorian terraces, and provides architectural design as part of its service.
020 8037 7332 3rd Floor, Hathaway House, Popes Dr, London N3 1QF
on GoogleNorwood, London
Visionary Lofts installs loft conversions for residential properties across Norwood and South West London. The firm manages each project directly to expand living space in existing roof structures. Complimentary consultations are available for homeowners looking to convert unused areas.
020 3442 8505 83 Tivoli Rd, Norwood, London SE27 0EE
on GoogleChiswick, London
Touchstone Lofts provides attic transformations and home extensions, covering everything from architectural design and planning to building work. Its projects include dormer, mansard, hip-to-gable, and rooflight conversions for various house types, as well as structural engineering services.
020 7870 1117 2 Watchfield Ct., Sutton Ct Rd, Chiswick, London W4 4NA
on GoogleLondon
2VP London provides loft conversion services across Clapham and the wider London area. The firm carries out various structural build options, including Velux, dormer, L-shape, hip-to-gable, and mansard conversions for local terraced and period housing stock.
020 8050 8968 The Hub, 20 Dawes Rd, London SW6 7EN
on GoogleLower Clapton, London
Anares completes home alterations across London, including single-storey rear extensions and loft conversions. Based in Lower Clapton, the firm undertakes structural property improvements for residential buildings.
07832 198523 110 Clarence Rd, Lower Clapton, London E5 8JA
on GoogleSouthall
AH Architecture designs loft conversions for homeowners in Southall and Clapham. The practice assesses existing head height and roof structures to plan rear dormer, hip-to-gable, or mansard conversions suited to local planning guidelines.
07756 066098 15 Alleyn Park, Southall UB2 5QT
on GoogleClapham
Simply Loft carries out home extensions and attic conversions for properties across West London, including Richmond, Acton, and Chiswick. The team manages the full process from initial consultation to structural completion to expand living space.
Clapham
Sussex Lofts manages attic conversion projects for homeowners in Clapham. The firm handles the full process from initial design to final completion, creating additional living space within existing residential properties.
In Clapham, velux / rooflight typically costs £30,500 – £42,500. Labour in Greater London runs 21% 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 "loft conversion clapham". They are ranked on Google rating, online presence and other factors.
The figures above are Clapham ranges. These explain what drives them, so you can read a quote properly.
Loft conversion prices by type for 2026, including VAT, with London figures, the fees and extras a builder's quote leaves out, and when planning permission applies.
When a loft conversion needs planning permission in England, the 40 and 50 cubic metre limits for dormers, what a certificate costs, and the rules in Wales, Scotland and Northern Ireland.
What a dormer loft conversion costs in 2026, the dormer types, whether your loft has the height, the planning and building regulations rules in each nation, and how long it takes.
Usually not. Most fall under permitted development if you stay within 40 cubic metres for a terrace or 50 for a semi or detached, do not go above the existing roof ridge, and use materials in keeping. Mansards and anything on a flat or in a conservation area normally do need permission.
Six to eight weeks for a dormer once work starts, plus four to eight weeks beforehand for drawings, structural calculations and building control. Scaffolding usually goes up a week ahead.