How to Quote Painting Jobs More Accurately

Most contractors don't lose money on the painting. They lose it on the quote.

Price too low and the job eats your profit before you've even finished the first coat. Price too high and you watch the client go with someone else. The difference usually isn't skill with a roller, it's whether you actually understood what you were pricing before you wrote the number down.

Here's how to get that number right:

Quoting from photos is tempting when you're busy, but it's how contractors end up eating costs they never saw coming. You need to be standing in front of the wall to catch what a photo won't show you: paint that's flaking more than it looks, plaster that's cracked under the surface, damp patches creeping up from the skirting, dust or grime that'll need extra prep, or a roofline that's going to need scaffolding you didn't budget for. Fifteen minutes on site can save you a very awkward conversation halfway through the job.

Square metres of wall space is the easy part. What catches people out is everything around it such as door frames, window reveals, ceilings, fascias and barge boards, boundary walls, balconies, parapets, sometimes even the roof. Each of those surfaces preps and coats differently, so if your measuring stops at "wall area," your quote is already short.

Ask yourself honestly: does the old paint need scraping back? Are there cracks that need filling first? Is the surface chalky, dusty, or just not going to hold paint without help? Would a basecoat like Ripple Basecoat make the difference between a finish that lasts and one that doesn't?

Prep almost always takes longer than the painting itself, and it's the first thing contractors shave off when they're trying to win a job on price. That shortcut has a way of turning into a callback and a callback costs more than the discount ever saved you.

Painting over damp doesn't fix damp. If you spot it, you need to know what kind you're dealing with before you can price it properly — rising, lateral, or penetrating, since each one needs a different fix. DampChem treats rising damp by forming a chemical damp-proof course, while RefurbiSOL is built to stop lateral moisture moving through a wall. Pricing these in upfront, rather than discovering them mid-job, is what makes a client trust your quote in the first place.

Running short mid-job kills your schedule. Over-ordering ties up money you didn't need to spend. Work it out properly — total area, the product's coverage rate, how many coats you actually need, how porous or textured the surface is, and a reasonable allowance for waste. Textured or porous walls will drink up more product than a smooth interior wall, so don't use the same spread rate for both. Stick to the manufacturer's recommended coverage and you won't be guessing.

A lot of exterior jobs need more than paint, and it's easy to forget that at quoting stage. Roofs, balconies, parapets, planter boxes, retaining walls — these are the areas that fail first if they're not properly waterproofed. Something like Hydrobar is built for exactly this kind of high-risk area, and it should be its own line item, not folded quietly into the paint cost. Sorting the moisture problem before you paint over it is what keeps the coating from failing a year later.

It's easy to quote the paint and the labour and forget everything in between such as rollers and brushes, masking tape, sandpaper, plastic sheeting, cleaning materials, reinforcement membrane if you're waterproofing, primers and sealers. None of these are expensive on their own. All together, they're a real number, and it needs to be in the quote, not absorbed into your margin.

No job goes exactly to plan. Something's always a little worse than it looked, the weather doesn't cooperate, or there's damage behind a wall you couldn't have seen. A sensible contingency protects your margin without pricing yourself out of the job.

The bottom line is, a good quote isn't really about paint quantities and a square metre rate. It's about actually understanding the scope of the job before you commit to a number. Inspect properly, catch the damp and the prep issues early, and price the right products for the surface. Do that consistently and you end up with fewer surprises, fewer callbacks, and clients who trust the number you gave them the first time.

At Paint-Scape, that's the whole point of what we stock — primers and basecoats, damp treatment, waterproofing systems, and coatings that hold up, so contractors have what they need from the first site visit to the final coat.

Visit us at Paint-Scape.Shop