If you're pricing up composite decking for a garden in Bolton, the honest answer is that costs vary more than most price lists suggest. Ground conditions, garden slope and the grade of board you choose all move the final figure, so here's a realistic breakdown based on what actually affects a Bolton installation.
For a straightforward, level garden, fully installed composite decking in Bolton generally runs from around £120 to £250 per square metre, including the substructure, boards, fixings and labour. A small seating area of 10 to 15 square metres, the kind of space you'd fit behind a terrace in Daubhill or Great Lever, typically lands between £1,800 and £3,500.
A medium garden of 20 to 30 square metres, more common in the semi-detached streets around Bromley Cross or Harwood, usually comes to £3,500 to £6,500. Larger projects of 40 square metres or more, often seen on the bigger plots around Egerton or Horwich, can run from £7,000 up to £12,000 or beyond once steps, balustrades and lighting are added.
Board quality is the biggest variable. Entry-level composite boards cost less per metre but can look and perform noticeably worse within a few years, while premium capped boards such as Millboard or higher-grade Trex cost more upfront but resist staining and fading better, which matters under Bolton's fairly wet, overcast climate.
Groundwork is the other major factor. Many gardens around Bolton sit on clay or have a noticeable slope, particularly closer to the West Pennine Moors edge in places like Egerton and Edgworth, so levelling, extra joists or a raised frame can add several hundred pounds. If we're removing an old patio, decayed timber decking, or dealing with poor drainage, that's additional time and cost before a single composite board goes down.
Timber decking is usually cheaper to install, often £70 to £130 per square metre, but it needs re-staining or oiling every year or two to cope with Bolton's rainfall, and it's more prone to slipperiness and rot without that upkeep. Composite costs more initially but needs little beyond an occasional clean, which tends to even out the lifetime cost over 15 to 25 years.
For a town with as much rain as Bolton gets, the lower maintenance of composite is often the deciding factor for homeowners who don't want to spend a weekend every spring treating their deck.
Most garden decking in Bolton doesn't need planning permission, provided it's under 300mm high and doesn't cover more than half the garden. If you're raising the deck significantly to deal with a slope, building close to a boundary, or your home is in a conservation area such as parts of Barrow Bridge, it's worth a quick check with Bolton Council's planning department before work starts.
It's also worth asking any installer about the type of joists used. Aluminium or composite subframes last longer than timber joists in damp ground conditions, which is relevant on the heavier clay soil found in many Bolton gardens, and can affect both the price and how long the deck lasts before any remedial work is needed.
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