The honest answer is "it depends" — so here's exactly what it depends on, what a good quote includes, and how to compare prices fairly.
Loft boarding is priced by the square metre, which makes it look like a simple sum until you get two quotes that are hundreds of pounds apart. Usually they are not quoting the same job. One is boarding straight onto the joists and flattening your insulation; the other is fitting a raised system that leaves it working.
Rather than give you a number that turns out to be wrong, here's what actually drives the price — so when you compare quotes, you're comparing the same thing.
Loft boarding is priced by the square metre, so the size of the boarded area is the biggest single factor. Plenty of people only need the middle third of the loft boarded rather than the whole footprint, and boarding only what you will use keeps the cost down.
Boarding straight onto the joists is cheaper on the day and squashes your insulation flat. A raised system costs more in materials and time, keeps the insulation working, and is what we would fit in our own house. This is the line on the quote worth understanding before you compare prices.
If the existing insulation is thin, sunken or patchy, it makes sense to top it up to the recommended 270mm before the floor goes down. Doing it afterwards means lifting the boards again, so it is much cheaper done in the same visit.
Joist size, spacing and span decide how much load the floor can carry. Most lofts are fine for normal storage. Where joists are undersized or the span is long, strengthening work adds to the cost, and we would rather tell you that up front than find out later.
A small hatch, an awkward landing, or a loft already packed with belongings all slow the job down. Water tanks, pipework, cabling and central-heating runs have to be worked around or boxed in rather than boarded over.
These are the common extras and they are genuinely worth pricing together, because doing them in one visit is cheaper than three. A bigger hatch, a fitted ladder and a light with a switch are what turn a boarded loft into one you will actually use.
Boarding into the low corners takes longer per square metre than the open middle, because there is less headroom and more cutting. It is also where the extra usable storage tends to be, so it is often worth it.
Old sunken insulation, previous boards, and general loft clutter have to go somewhere. Removing and disposing of them is a real cost, and it should appear on the quote rather than turn up as an extra afterwards.
Tell us about your loft and we'll come and look at it, check the joists and insulation, and give you a clear, no-obligation quote — every line explained.
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