Interior & exterior
One team for the whole job, from groundworks and structure through to the final coat of paint — and the building control sign-off at the end.
Rear, side return, wraparound or double storey — we handle the build from foundations to final decoration, including the steel, the drainage diversion and the building control sign-off.
Cost: Most single-storey rear extensions in this part of London land between £2,200 and £3,000 per square metre depending on glazing, groundworks and finish. A proper site visit is the only way to price it honestly.
Dormer, hip-to-gable, mansard or a simple Velux conversion — including the staircase, the fire-rated doors and the building control certificate that makes it count as a bedroom when you sell.
Cost: A dormer conversion with an en-suite typically runs £55,000 to £85,000 in West London. Velux-only conversions are considerably less; mansards more. The roof structure drives the price more than the floor area does.
Strip-out to final decoration — rewires, replumbs, new heating, structural alterations, kitchens, bathrooms and finishes, run as one programme by one team.
Cost: A full refurbishment of a three-bedroom house generally runs £1,400 to £2,200 per square metre depending on how much structural work is involved and the specification of the finishes.
From a straight replacement to knocking through and reconfiguring the whole ground floor — including the structural opening, the electrics, the plumbing and the worktops.
Cost: Installation of a mid-range kitchen typically runs £6,000 to £12,000 excluding units and appliances. Adding a structural opening or relocating the waste changes that materially.
Complete bathrooms, en-suites and wet rooms — tanked and waterproofed correctly, so you are not revisiting it in three years.
Cost: A full bathroom refit is typically £6,500 to £12,000 depending on sanitaryware, tiling and whether the layout moves. A wet room with a formed floor costs more than a tray.
Block paving, resin-bound, porcelain and natural stone — excavated, sub-based and laid to fall, with the drainage the regulations actually require.
Cost: Block paving typically runs £90 to £140 per square metre laid, resin-bound £80 to £120, porcelain more. Ground conditions and how much spoil has to be carted away move the number most.
External wall insulation and through-coloured render on solid-wall properties — warmer house, lower bills, and a facade that is not cracking in two winters.
Cost: External wall insulation with render typically runs £120 to £180 per square metre including scaffold, depending on insulation depth, the number of openings and the state of the existing substrate.
Knock-throughs, load-bearing removals, chimney breast removal and full internal reconfiguration — including reconfiguring houses into multiple units.
Cost: A single structural opening with a steel beam typically runs £3,500 to £7,000 including the engineer, the steel and making good. Full reconfigurations are priced per project after a survey.
Send a few details and we will come out, measure properly and put a written, itemised quote in front of you.
We reply to every quote request within 24 hours.