Decking installation in London typically costs £1,200 to £3,000 for a standard timber deck, and £2,500 to £5,000+ for composite decking, depending on the size, ground conditions and finish. Repairs, re-boarding and restaining start from a few hundred pounds.
A well-built deck turns an awkward or unused garden into an outdoor room. The difference between a deck that lasts fifteen years and one that rots or wobbles in three is all in the frame: correct joist spacing, proper ground support, ventilation underneath, and quality fixings. Our London carpenters build decks on a solid, level sub-frame so the surface stays firm and true.
We install new timber and composite decking, replace tired boards, level sloping or uneven ground, and build steps, edging and balustrades. From a compact courtyard or balcony to a full garden or roof terrace, we handle the design, the groundwork and the build, and finish with a slip-resistant, weather-ready surface.
How much does decking installation cost in London?
Here is a realistic guide to London decking costs in 2026, supplied and built:
| Decking job | Typical London price | Guide time |
|---|---|---|
| Small deck (up to 10 m²) | £1,200 – £2,000 | 2 – 3 days |
| Medium timber deck (10–20 m²) | £2,000 – £3,000 | 3 – 4 days |
| Composite decking | £2,500 – £5,000+ | 3 – 6 days |
| Balcony / roof-terrace deck | £1,500 – £4,000 | 2 – 5 days |
| Deck repair / re-board | from £300 | 1 – 2 days |
| Clean, sand & restain | £250 – £600 | 1 – 2 days |
Indicative 2026 London prices, supplied & fitted. Final quotes are fixed after a free assessment.
What our decking service covers
How your deck is built
Choosing between timber and composite? Timber is cheaper up front and looks natural but needs restaining every year or two. Composite costs more initially but barely needs maintenance, will not splinter or rot, and stays looking good — a popular choice for busy London households and roof terraces. We will talk you through both for your space and budget.
Roof terraces and balconies need extra care: we check weight loading, protect the waterproof membrane, and use adjustable pedestals or a floating frame where fixing down is not an option, so you get a solid deck without compromising the roof.
Why choose London Handyman Pro
- Built to last — Proper sub-frames and quality fixings, not a quick surface job.
- Timber or composite — Impartial advice on the best boards for your garden and budget.
- Insured carpenters — Skilled outdoor joinery with full public liability cover.
- Tidy site — We clear waste and leave your garden clean and usable.
Decking installation across London — areas & postcodes we cover
We provide decking installation across every London borough and postcode, from the central districts to the suburbs — including Mayfair, Chelsea, Kensington, Westminster, Notting Hill, Fulham and many more. Wherever you are in the capital, a local, insured handyman is close by, usually with same-week availability.
Covering London postcodes including W1, SW3, W8, SW1, W11, SW6, W6, W4, W5, W3, W12, W9, N1, NW1, NW3, N6, NW5, N3, N4, NW8, N17, E14, EC2, E8, E1, E15, E2, E17, SW4, SW11, SW2, SW18, SW15, SW12, SW17, SW16, SW19, SE10, SE15, SE21, SE11, TW9, TW3 and everywhere between. Don’t see your area? We cover the whole of Greater London — tell us your postcode for a fixed decking installation quote.