House Extensions, Loft Conversions & Renovations in London
Extensions, loft and basement conversions and full home renovations across South East London and Kent — delivered by one accountable team.
Heath Projects is a design-and-build main contractor based in Blackheath, delivering extensions, loft and basement conversions and full house renovations across South East London and Kent. Our team brings thirty years' experience to every project, and every job runs with one contracts manager and one site manager accountable from first survey to handover — so you always know who to call.
What we deliver
Rear & Side-Return Extensions
Opening up the back of a house to create a bright kitchen and living space — structural work, glazing, roofing and finishes delivered under one contract.
Loft Conversions
Dormer, hip-to-gable and rooflight conversions adding a bedroom, bathroom or study, with staircases, insulation and fire protection built to current regulations.
Basement Conversions
Lowering, underpinning and tanking existing cellars, or forming new basement space, with drainage, waterproofing and natural light designed in from the start.
Full House Renovations
Whole-house refurbishment — reconfigured layouts, rewiring and replumbing, new heating, joinery and decoration, handed over ready to move into.
Kitchens & Bathrooms
Kitchen and bathroom installations as part of a wider project or on their own, including bespoke joinery, tiling, stone and the services behind them.
Period Property Work
Sympathetic work to Victorian, Georgian and conservation-area homes — sash windows, cornice and plaster repair, damp and structural remedies done properly.
How a project runs
- 1
Survey & brief
We visit the house, talk through how you want to live in it, and note the structural, planning and access constraints that will shape the job.
- 2
Design & costing
Drawings, specification and a transparent cost plan, so you can see where the money goes before anything is committed.
- 3
Programme
A dated programme covering planning and building control, party wall matters and long-lead items, so you can plan around the works.
- 4
On site
One contracts manager and one site manager accountable throughout, with regular updates and a clean, respectful site in a residential street.
- 5
Handover
Snagging closed out, services tested and certificates and guarantees issued, so the house is finished and documented.
Recent residential work
Hardy Road Project
Extensive strip out of 4,500ft family home in phases. New ground floor rear extension and complete refit of house including new roof, new windows complete renewal of mechanical and electrical services and total refit of house while retaining original features of the property
Grosvenor Square Project
Total refurbishment of 3 bedroom apartment and refit, including new fire rated glazed partitions, stone floors, joinery, kitchen and mechanical and electrical fit out works.
Knightsbridge Project
High-end luxury fit out of 4 bedroom 5 bathroom apartment for private client. New partitions, bleached oak floors, eucalyptus veneer joinery and all mechanical and electrical works.
Frequently Asked Questions
We also work across commercial, retail, industrial and leisure projects. See all our services.
Planning an extension or renovation?
Tell us about the house, what you want to change and your timescale — we'll come back with a clear plan and cost.
Start Your Project