Cost of Decking Installation in Windsor (2026)
Expect to pay somewhere between £145 and £340 for decking installation in Windsor, per m². Berkshire prices are noticeably above the UK average. Get at least three written quotes before committing — it's a 10 to 15 percent swing in either direction for not much effort.
About decking installation in Windsor
Windsor is a small town of around 32,000 in Berkshire. The housing is mostly period cottages, Edwardian villas and 1930s semi-detached housing alongside newer commuter developments. That matters: older properties usually mean more pipework, rewiring and retrofit surprises, while newer builds in districts like SL4 tend to be quicker jobs with standardised fittings. Local trade prices sit on the expensive side for UK trade work. That's mostly wage levels plus the cost of running a van and a yard in and around Berkshire.
A lot of South East firms work both London and local jobs. Rates usually track London with a small discount, so you're rarely getting a bargain. Peak season runs May to September and good tradespeople can be three to four weeks out. Out of season is the time to price round.
Landscaping prices move with materials. Natural stone, porcelain pavers and composite decking have all climbed sharply in the past two years. APL (Association of Professional Landscapers) is the trade body to look for. Retaining walls over a metre need Building Regulations, and raised decking over 30cm can need planning consent — worth checking before you start.
Decking Installation cost breakdown in Windsor
Softwood deck at ground level, 15m²
Composite deck with joists, 20–30m²
Raised composite deck with balustrade and steps over sloping garden
What affects the price of decking installation in Windsor?
- Decking material (softwood, hardwood, composite)
- Ground preparation and joist spacing
- Height and balustrade requirement
- Steps and access
Windsor vs the UK average
Windsor sits in the landscaping & gardens market at a cost multiplier of 1.22× the UK national average. That puts Windsor decking installation prices at £145–£340 versus the UK average of £120–£280 per m².
Decking Installation cost calculator — Windsor
Estimate based on live 2025 UK trade pricing. Always get 3 written quotes before committing.
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What's typically included in a decking installation quote
- Ground prep and joists
- Decking board supply and fix
- Edging and trim
- Waste disposal
Frequently asked questions
How much does decking installation cost in Windsor?
Budget £145 to £340 per m² for decking installation in Windsor. Prices here are around 22% more expensive than the UK average. What moves a quote inside that range is mostly landscaping contractor day rates in Berkshire and the specific material list for your job.
How long does decking installation take in Windsor?
A straightforward decking installation job in Windsor runs to 3–6 days. You can lose days to things outside the contractor's control — parts on backorder, awkward access, or a firm slotting your job around existing bookings. Ask for a start date and expected finish up front.
What's included in the price of decking installation in Windsor?
A proper decking installation quote in Windsor should cover: Ground prep and joists; Decking board supply and fix; Edging and trim; Waste disposal. If any of those aren't itemised on your quote, push back and ask. A written guarantee with a clear warranty period is reasonable to expect on this kind of work.
Is decking installation cheaper in Windsor than the UK average?
Decking Installation in Windsor runs around 22% more expensive than the UK average. The UK-wide benchmark for this job is £120 to £280 per m²; Windsor quotes tend to land between £145 and £340. Handy to know what the average actually looks like before you price round.
Do I need planning permission for decking installation in Windsor?
Most decking installation jobs don't need planning permission, but Building Regulations and any manufacturer or trade-body sign-off still apply. If the property sits in a conservation area or is listed, ring Berkshire Council before you book anything in. It's a free call and saves a world of grief later.
See all decking installation prices across the UK or browse all tradespeople costs in Windsor.