Property Renovation Contractors in Wandsworth (SW18)
Professional property renovation contractors in Wandsworth, South West London.
Why Choose All Well for Property Renovation in Wandsworth?
Wandsworth has some of the most diverse renovation projects we take on — from compact Victorian terraces that need a full refurbishment to substantial riverside properties that need a sensitive modernisation. The common factor is that clients want everything done by one team, managed by one person, to a fixed price. That's our model, and it works particularly well in Wandsworth where the project manager can be on site within 20 minutes if anything needs attention.
Every project comes with a fixed-price contract, single project manager, and full certification including Building Control sign-off.
Property Renovation for Wandsworth Properties
Wandsworth is known for its victorian terraces, riverside developments, period houses. Our property renovation services are tailored to these property types, ensuring results that complement the character of your home.
Postcodes we cover: SW18
Property Renovation Tip for Wandsworth Homeowners
Wandsworth properties near the river often have basements that are prone to damp — the high water table means external waterproofing alone isn't always sufficient, and we recommend a combined approach with internal tanking and a sump pump as backup. On the upper floors, many Wandsworth Victorians have been through loft and extension projects over the years that weren't properly documented — a structural survey before renovation starts is essential to understand what's been done and whether it was done correctly.
What a Wandsworth property renovation typically covers
Three patterns cover most of what we run for full renovations in SW18. Victorian terrace full refurbishment is the most common Wandsworth project. The terraces along East Hill, Wandsworth High Street, Garratt Lane, and the streets running off Wandsworth Common have solid 9-inch brick walls, original lime plaster, slate roofs, and original sash windows. Scope includes complete rewire to BS 7671, full replumb including replacement of original lead supply and corroded cast-iron soil stack, structural opening-up of the ground floor with a 152x89 UC steel beam, sash window restoration, lime plaster repairs, new kitchen and bathrooms, and complete decoration. Cost is £95,000-£170,000. Build time 14-22 weeks. Riverside Victorian villa renovation is the second pattern, common on the streets between Wandsworth High Street and the Thames. The proximity to the river means higher groundwater and basements that often need substantial waterproofing during the renovation. Cost is £130,000-£250,000 depending on size and waterproofing scope. Build time 18-26 weeks. Combined renovation plus rear extension or loft conversion is the third pattern. Single coordinated project. Cost is £150,000-£300,000. Build time 22-28 weeks. Significant economies vs separate projects: typically 10-15% cost saving and 4-8 weeks shorter total programme.
Wandsworth-specific renovation detail
Three Wandsworth factors regularly affect renovation scope and cost. Riverside groundwater and basement waterproofing. Wandsworth properties within 200-300 metres of the Thames have higher persistent groundwater than properties further inland. Where the renovation includes any basement work — tanking an existing cellar to habitable use, deep extension foundations, or underpinning — a belt-and-braces waterproofing approach is essential under BS 8102. Specification is typically external membrane where excavation allows (Newton 109-LM applied to the external face of the retaining wall before backfill), Newton 508 cavity drain membrane internally as the primary barrier, and a sump pump with dual pumps and battery backup as final failsafe. Cost £15,000-£35,000 for full basement waterproofing depending on area. A ground investigation (around £600-£1,200) is essential before committing to below-ground work on riverside properties. For Flood Zone 2 or 3 properties, a Flood Risk Assessment (£600-£1,200) is required as part of any extension planning application. Undocumented past structural work. Many Wandsworth Victorians have been through loft conversions, extensions, and internal alterations over the past 30-40 years that were never properly documented or signed off. A structural survey at the start of the renovation by a chartered structural engineer identifies undocumented alterations — typically removed chimney breasts without proper support, undersized steel beams from past kitchen extensions, cut floor joists from past pipe runs, and unauthorised loft conversions that lack Building Regulations sign-off. The remediation cost (typically £8,000-£25,000) is built into the fixed-price contract before any work starts. Wandsworth Common, East Putney, and Magdalen Park conservation areas. The Wandsworth Common conservation area covers a substantial area around the common. The East Putney conservation area covers the streets near Putney Bridge Road. The Magdalen Park conservation area covers part of Earlsfield. Within all three, exterior alterations need sympathetic design and Wandsworth's conservation team reviews applications individually. Internal renovations are unaffected. Wandsworth typically determines applications in 8-10 weeks (faster than the 13-week statutory limit). Services on pre-1980 properties typically need full rewire to BS 7671 (£4,500-£9,500) and full replumb (£6,500-£12,000) with hot water upgrade (£2,500-£4,500, BS 7593 commissioning).
Project management on a Wandsworth property renovation
A Wandsworth full renovation typically involves 14-18 different trades over 14-28 weeks: demolition, structural engineering, drainage, basement waterproofing (where applicable), electrics (NICEIC), plumbing, gas (Gas Safe), plastering, lime plaster specialists, sash window restoration, joinery, kitchen fitting, tiling, flooring, glazing (FENSA), painting, decoration. We assign one project manager from survey through handover with photo updates throughout the build. Wandsworth falls under Wandsworth Council, regarded as one of London's faster planning authorities. Internal renovations do not need planning permission. The Wandsworth Common, East Putney, and Magdalen Park conservation areas affect external alterations only. Building Regulations apply for the rewire (BS 7671 under Part P), structural opening-up (Part A), drainage (Part H), thermal performance (Part L), basement waterproofing (BS 8102 Grade 3 for habitable use), and any unvented cylinder (BS 7593 commissioning). Wandsworth Building Control charges £400-£700 for a renovation inspection process. For riverside properties with basement work or below-ground extensions, a ground investigation (£600-£1,200) and Flood Risk Assessment (£600-£1,200) are coordinated as part of the project. We work with recognised flood consultants and ground investigation specialists with London riverside experience. Fixed-price contracts cover labour, materials, all fees, structural engineer calculations and remediation specifications for past undocumented alterations, FENSA registration, party wall surveyor coordination, basement waterproofing, ground investigation, Flood Risk Assessment where applicable, conservation area applications where relevant, and Building Control fees. The contract is signed before any work starts. Variations are quoted in writing before they are done.
Property Renovation in Wandsworth: What's Included
Property Renovation Pricing in Wandsworth
£30,000 – £150,000
8–20 weeks | Fixed-price contracts | No hidden costs
What Our Customers Say
“All Well managed our project from start to finish. The fixed-price contract meant no surprises, and the result is stunning.”
Verified Customer
Wandsworth
“Professional team, clear communication throughout. They handled everything including Building Control sign-off.”
Verified Customer
Wandsworth
Frequently Asked Questions
- How much does a Wandsworth property renovation cost?
- Victorian terrace full refurbishment runs £95,000-£170,000 depending on size and specification. Riverside Victorian villa renovation runs £130,000-£250,000 reflecting basement waterproofing and riverside groundwater. Combined renovation plus rear extension or loft conversion runs £150,000-£300,000 for a single coordinated project. Basement waterproofing on riverside properties adds £15,000-£35,000 depending on area. Past structural alteration remediation typically adds £8,000-£25,000 depending on what the chartered structural engineer survey finds. Fixed-price contract before any work starts.
- How does basement waterproofing work on a Wandsworth riverside property?
- Belt-and-braces approach to BS 8102 Grade 3 (habitable use). Specification is typically external membrane where excavation allows (Newton 109-LM applied to the external face of the retaining wall before backfill), Newton 508 cavity drain membrane internally as the primary barrier, and a sump pump with dual pumps and battery backup as final failsafe. The cavity drain system collects any moisture that gets through the external membrane and channels it to the sump for pumping out. Cost £15,000-£35,000 for full basement waterproofing depending on area. A ground investigation (around £600-£1,200) is essential before committing to below-ground work on riverside properties to confirm groundwater levels and soil conditions.
- Why do Wandsworth renovations often need a structural survey first?
- Because many SW18 Victorians have been through loft conversions, extensions, and internal alterations over the past 30-40 years that were never properly documented or signed off. A chartered structural engineer survey at the start of the renovation identifies undocumented alterations — typically removed chimney breasts without proper support, undersized steel beams from past kitchen extensions, cut floor joists from past pipe and cable runs, and unauthorised loft conversions that lack Building Regulations sign-off. Remediation typically adds £8,000-£25,000 depending on what is found. We commission the structural survey before pricing the renovation rather than after, so the remediation cost is built into the fixed-price contract before any work starts.
- Why hire All Well for a Wandsworth property renovation?
- Three reasons. First, we know the SW18 stock — riverside groundwater and basement waterproofing, undocumented past structural work, original sash window restoration, and the Wandsworth Common, East Putney, and Magdalen Park conservation area boundaries. Second, full accreditation: NICEIC for electrical (BS 7671), FENSA for glazing, Gas Safe registered for boiler work, structural engineer calculations included, BS 8102 basement waterproofing, and Building Control sign-off on every project. Third, fixed-price contracts: the quote doesn't change unless the specification does. 57 verified Google reviews averaging 4.5/5. Office on Limes Avenue, SE20.
Property Renovation Near Wandsworth
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