Builders in SW12
Balham · South West London
Building and renovation in SW12
SW12 covers Balham, Nightingale Triangle, Hyde Farm, Heaver Estate, Bedford Hill. Substantial Victorian and Edwardian terraces on the Heaver Estate and Nightingale Triangle, Hyde Farm's uniform terraces, and conversion flats through the centre.
Planning and consent in SW12
Hyde Farm and the Heaver Estate are conservation areas with article 4 controls on windows, front boundaries and roofs. Elsewhere, generous garden depth supports large rear extensions.
Access and site logistics
Wider streets than inner London with mostly workable parking and skip permits from Wandsworth or Lambeth depending on the boundary. Many houses retain side passages for muck-away.
What we are usually asked for here
- Full-width rear and side-return kitchen extensions
- Loft conversions with bedroom, en-suite and rooflights
- Sash window and front elevation restoration under article 4
- De-conversion of flats into family houses
We survey the property before pricing, confirm the constraints that apply to your specific address rather than the postcode, and issue a fixed price against a written scope. One site manager runs the trades from first fix to snagging.
District at a glance
- Postcode district
- SW12
- Main localities
- Balham, Nightingale Triangle, Hyde Farm
- London region
- South West London
- Response time
- Site visit typically within 5 working days
Services we provide in SW12
Loft conversions
Turn dead roof space into the best room in the house
Read more →House extensions
Rear, side-return, wrap-around and double-storey extensions
Read more →Home renovations
Whole-house refurbishment, stripped back and rebuilt properly
Read more →Kitchen renovations
Bespoke and designer kitchens, installed by one team
Read more →Bathroom renovations
Waterproofed properly, finished beautifully
Read more →Basement conversions
Dig-outs, tanking and habitable lower-ground space
Read more →Indoor swimming pools
Tanked, heated and environmentally controlled pool halls
Read more →Outdoor swimming pools
Concrete tanks, heating, covers and landscaped surrounds
Read more →Garden design
Terraces, planting, lighting and outdoor rooms
Read more →Landscaping
Hard and soft landscaping, levels, walls and drainage
Read more →Commercial construction
Refurbishment and fit-out delivered around your trading hours
Read more →Shop fit outs
Shopfronts, signage and retail fit-out that opens on time
Read more →Plumbing
Full re-pipes, bathroom services, boilers and hot water systems
Read more →Electrical
Rewires, consumer units, lighting design and certification
Read more →Carpentry
Bespoke joinery, wardrobes, staircases and structural carpentry
Read more →Roofing
Survey-led roof repairs, re-covering, flat roofs, leadwork and guttering
Read more →Basement waterproofing in SW12
Balham's Victorian and Edwardian houses frequently have a cellar under the front room and hall, and a number of owners have lowered the floor to create a full lower ground floor.
Cellar conversions follow a standard Type C approach — membrane, channel, sump and pump — with underpinning designed by an engineer where the floor is lowered. We check the head height and drainage outfall before recommending a conversion.
A Type C cavity drain system in SW12 is specified after a survey, designed to BS 8102 for the way you intend to use the room, and installed with the drainage channel, sump and pumps left accessible for maintenance. Read the full basement waterproofing and Type C cavity drain guide, or see how it fits into a basement and cellar conversion.
Waterproofing or damp proofing in SW12?
Damp proofing deals with moisture in above-ground walls. Waterproofing protects a room that sits below ground against water pressure from outside. In Balham we decide which one the property needs at the survey, and often the answer is an external repair first.
How a SW12 quotation works
We visit, find the source of the water, check head height, drainage outfall and any lease or listed-building constraints on your address, then issue a written scope and fixed price covering membrane, channel, sump and pumps and the finished room.
Kitchen and bathroom renovation in SW12
Kitchen and bathroom remodelling in Balham and Nightingale Triangle covers strip-out, first-fix plumbing and electrics, any structural work, tiling, fixtures and joinery, managed by one site manager against a detailed written quotation.
Kitchen remodelling in SW12
Balham's Edwardian houses usually get a kitchen remodel with a side-return or wraparound extension, plus rewiring and a new consumer unit if the electrics are original.
Kitchen renovation in London →Bathroom remodelling in SW12
SW12 bathrooms are commonly combined with a separate WC to create one larger room, with thermostatic showers and full-height tiling.
Bathroom renovation in London →Every SW12 kitchen or bathroom quotation starts with a site survey: we check waste and stack positions, water pressure, extract routes, floor structure and any lease or conservation requirements for your address before pricing.
Garden designer in SW12
Balham gardens behind Edwardian and Victorian homes are often family spaces with terraces, lawns, lighting and garden studios.
South west London gardens behind terraced and semi-detached houses are often long and narrow, used as family spaces, with garden rooms, terraces and lighting frequently requested.
Our garden design and landscaping service covers layout, levels and drainage, planting, terraces and paths, garden lighting and external power, and how materials and plant reach the garden. In SW12 that access question matters: Wider streets than inner London with mostly workable parking and skip permits from Wandsworth or Lambeth depending on the boundary. Many houses retain side passages for muck-away.
Garden designer London →Roofing in SW12
SW12 houses frequently have pitched tile or slate roofs, bays and loft dormers that need joint checks around flashings.
Typical roofs combine pitched slate or tile main roofs, rear outrigger roofs, valleys and dormers, often alongside loft work already completed or planned.
Roofing work starts with a survey and photographs, then a written scope that states whether repair or replacement is recommended: pitched and flat roofs, leadwork and flashings, guttering and rainwater goods, and the scaffolding the roof needs. Planning, conservation and freeholder requirements for your address are confirmed at survey.
Roofing services London →Area guides inside SW12
SW12 portfolio examples
Illustrative concept case studies — not records of specific client contracts.
SW12Restaurants · 2025
Balham Restaurant
A restaurant build with commercial kitchen, extract system and bespoke front-of-house joinery. Sample case study set in Balham (SW12).
View project →
SW12Flooring · 2024
Balham Flooring
Engineered oak herringbone flooring laid over a levelled and insulated substrate. Sample case study set in Balham (SW12).
View project →
SW12Full House Renovations · 2023
Balham Full House Renovation
A whole-house refurbishment stripped back to brick and rebuilt with new services, joinery and finishes. Sample case study set in Balham (SW12).
View project →
SW12Loft Conversions · 2025
Balham Zinc Dormer Loft — Completed
Completed rear dormer clad in standing seam zinc with slim black framed windows and the slate roof made good. Sample loft conversion case study in Balham (SW12) — completed stage, built by the Foxter site team.
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SW12House Extensions · 2025
Balham Side Return Dining Extension — Completed
Completed side return with a long glazed roof strip over a herringbone-floored dining room. Sample house extension case study in Balham (SW12) — completed stage, built by the Foxter site team.
View project →