Commercial painting, bought on downtime, not on paint

Substrate and condition survey

A proper commercial estimate surveys the actual substrates — block, concrete, metal, drywall, previously coated surfaces — and records their condition elevation by elevation or floor by floor, because the preparation required varies enormously across one building.

Watch for: A price built from a floor area and a rate. Condition, not area, drives commercial painting cost, and a rate-based quote will be revised the moment the crew starts scraping.

Access and phasing plan

The programme is built around when spaces can be released — floor by floor, out of hours, or during a shutdown. Lifts, scaffold, swing stage or rope access are specified for the exterior, and each carries different cost and different lead time.

Watch for: Access equipment excluded from the quote or listed as provisional. On a multi-storey exterior, access is frequently a larger cost than the painting, and it is a common place for a low number to be hiding.

Coating specification

Products are selected against the substrate and the environment — washability in corridors, chemical or moisture resistance in kitchens and plant rooms, UV performance on exterior elevations, and any client colour standard.

Watch for: A specification given as a brand and a colour with no product line named. Manufacturers make several tiers of the same colour, and the difference in film build and durability between them is substantial.

Documentation, insurance and site requirements

Before mobilisation, the contractor supplies insurance certificates, method statements, safety documentation and, where required, evidence that crews are cleared for the site. Buildings with healthcare, education or food operations add their own requirements.

Watch for: A contractor slow to produce documentation. It is the most reliable early indicator of how the rest of the project will be administered, and it is easier to discover now than at mobilisation.

Preparation

Washing, scraping, filling, sanding and repair to the surveyed condition — the largest labour item and the one that differentiates quotes. On older buildings it also includes establishing whether existing coatings need special handling.

Watch for: On any building of a certain age, preparation that involves disturbing old paint. Lead-based coatings exist in older commercial stock too, and the rules apply. Ask how the contractor establishes and handles it.

Application, zone by zone

Spray, roller or brush by surface and by constraint — spray is far faster but needs containment that an occupied building may not permit. Zones are completed, cleaned and handed back rather than the whole building being opened at once.

Watch for: Spray application proposed in an occupied space without a containment plan. Overspray in a working office reaches equipment and finishes well beyond the working area.

Progressive handover and snagging

Each zone is inspected and signed off as it completes, rather than everything at the end. Defects are logged and corrected while the crew and the access equipment are still on site.

Watch for: Snagging deferred to project completion. Returning to a corridor after the lift has gone costs far more than fixing it at the time, and that cost lands somewhere.

Documentation handover

Final handover should include the products and colours used per area, batch information where relevant, and the maintenance and cleaning recommendations. This is what makes touch-ups possible in two years.

Watch for: No colour and product schedule handed over. Without it, matching a damaged wall later means either guessing or repainting a whole area.