#How to Price a Plastering Job (UK Guide for Sole Traders)

Plastering is one of the easiest trades to underprice. The skim itself is only part of the job — it's the prep, the drying times, the return visits and the materials that quietly eat your margin. This guide walks through how to price plastering work so the number on the quote reflects the job you'll actually do.

#The two pricing methods (and when to use each)

#Per square metre

Best for straightforward, repeatable work: skimming ceilings and walls in decent condition, boarding and skimming, floated render.

Measure each wall and ceiling, total the area, and apply your rate. Your m² rate should already build in your labour, a share of your overheads, and profit — not just "what other plasterers round here charge".

#Day rate

Best for messy, unpredictable work: patching, restoration, hacking off and re-rendering, anything where you won't know the full scope until you start.

Price the number of days honestly — including the half-day return to polish up — and say in the quote what the day rate covers.

Rule of thumb: if you can measure it confidently, price per m². If you'd be guessing, price the time.

#What to include beyond the plastering

Underpricing usually isn't a bad rate — it's forgotten line items. Walk the job and price:

• Prep — stripping wallpaper, PVA/bonding agent, scrim, beads, protecting floors and furniture
• Making good — raking out, filling blows, hacking off loose material (this can dwarf the skim itself)
• Boarding — overboarding a bad ceiling is often faster and better than three coats of filler; price the boards, screws and labour
• Materials — multi-finish, bonding, boards, beads, PVA, plus wastage. Prices move; check what you currently pay, not what a bag cost last year
• Access — stairwells and high ceilings mean towers or hop-ups and slower work
• Waste — bagging up and tipping the old plaster
• Return visits — drying time between coats means most jobs are at least two visits; your travel and time for each one is part of the price

#A worked example

Say a customer wants a medium bedroom (walls and ceiling) skimmed, walls in fair condition:

1. Measure: 4 walls ≈ 28 m², ceiling ≈ 12 m² → 40 m² total
2. Labour at your m² rate: 40 m² × your rate
3. Prep: half a day for stripping, PVA and protection
4. Materials: bags of multi-finish, PVA, scrim, beads + 10% wastage
5. Second visit: allow for the return to finish the ceiling or polish up
6. Add margin: apply your markup to materials, then check the total against the days you'll actually spend — if the m² maths says £X but it's really three visits, the day-rate check will catch it

That final cross-check — m² price vs honest day count — is the single best habit for not underselling a job.

#Don't forget markup and VAT

Cost is what you pay; price is what the customer pays. Apply your markup to materials rather than passing them through at cost — sourcing, collecting and guaranteeing materials is work. If you're VAT-registered, make sure the quote is clear about whether figures include VAT.

Our free markup & VAT calculator turns cost + markup + VAT into a sell price in seconds — no sign-up needed.

#Put it in a proper quote

A priced job scribbled in a text message is an invitation to argue later. A proper quote:

• itemises the work (prep, boarding, skimming, waste) so the customer sees the value
• states what's excluded (decorating, moving furniture, unforeseen making-good)
• gets accepted with a signature before you book the job in

If the job grows once you're on site — blown plaster behind the wallpaper is the classic — price the extra and get a signed variation before doing it, not on the final invoice.

#The bottom line

Price the whole job — prep, materials, returns and waste — not just the metres of skim. Cross-check the m² total against an honest day count. Put it in an itemised, signed quote, and capture any mid-job extras as signed variations.

TradePlanr is a job management app built for plasterers: build itemised quotes on your phone with line items that remember your rates, get them signed digitally, book the return visits in the job diary, and turn the quote into an invoice on the last coat. Try it free.