Loft Boarding Cost UK: Fitted and DIY Prices for Raised Boarding

Work Out Your Cost

Loft Boarding Prices

UK Loft Boarding publishes its full price list. Its prices on 25 October 2026 were 10% sale prices, subject to a free survey, and include a raised floor, an aluminium loft ladder, a free LED loft light, VAT and a 10-year guarantee:

Both packages have a raised sub-frame; the pre-1960 one is timber and includes a new insulated hatch, while for newer houses a hatch is from £178. It covers the North West, Yorkshire, the North East, Cheshire, North Wales and Nottingham, and says a job is normally done in a day, so prices elsewhere may differ. InstaLoft's published UK averages (June 2026), for raised boarding with materials, supports, labour and insulation checks, are small, 10 to 15 sq m £600 to £1,000, medium, 15 to 25 sq m £1,000 to £1,800, large, over 25 sq m £1,800 to £3,000+; its headline range starts higher, at about £985.

Why Raised Boarding, Not Boards on the Joists

The Energy Saving Trust says insulation between the joists alone may not meet modern recommended levels, and that "to increase performance, you can raise the floor slightly and add a second layer of insulation across the top of the joists", then fit the boards with a small ventilation gap to prevent condensation. It warns that squashing mineral wool reduces its effectiveness, and that if your loft is damp you should get professional advice before insulating. InstaLoft says boards screwed straight onto the joists can compress the insulation and restrict airflow, and that some installers even remove the insulation entirely.

Raised systems sit on plastic or timber supports above the joists. LoftZone says its StoreFloor raises the floor 279mm above the joists, leaving room for the government-recommended depth (the Energy Saving Trust gives 270mm for mineral wool), and that it surpasses British Standard 6399-1:1996 for minimum floor loads. A raised floor takes that much headroom, so measure the loft's height first. LoftZone also says timber battens act as a cold bridge and that its system is approved for new builds; those are the manufacturer's own claims. The Energy Saving Trust is clear that squashing mineral wool reduces how well it insulates.

Doing It Yourself

In our view a raised kit is a reasonable DIY job if you're comfortable working in a loft. LoftZone's kits run from £85 for a 2.9 sq m starter to £850 for 52 sq m, and its boards are £15 for a pack of three. For 12 sq m that's about £276 of supports and 11 packs of boards (£165), matching kits by area: your loft's shape and joist spacing may need a different kit (LoftZone sells versions for 450mm joists), and allow some boards for cutting. Add delivery, board screws, a ladder if you haven't got one, and lighting. Plastic loft legs that screw to the joists are another option; check they raise the boards above the depth of insulation you have.

Our view: board only the area you'll actually use, such as the space around the hatch, and top up the insulation everywhere else.

What a Fitted Price Should Include

• The raised supports and boards, with the area in square metres on the quote.
• A ladder and hatch, if you need them: UK Loft Boarding includes a ladder in every package, and a hatch only for older homes.
• What happens to the insulation: topped up under the boards, not removed.
• A written guarantee and the length of it.

Get at least two quotes and compare them like for like.

Boarding and Insulation Together

If your insulation needs topping up, do it first or in the same visit. Our loft insulation guide covers depths, costs and the grants, and the insulation costs guide compares every type.