Software for UK commercial / contract painters
Intumescent on the steels for a care home. DFT readings per coat. Witness signature. Currently on the back of a Nullifire delivery note.
Commercial contract painting is a different business from domestic. The customer is a main contractor or a commercial tenant; the spec is an architect’s or a fire engineer’s; the deliverables are not just paint on the wall but paint with an audit trail that survives a fire-safety inspection three years later. Intumescent fire-rated paint on structural steels in a care home, an office or a hotel - the spec calls for application records per coat (wet-film thickness on application, dry-film thickness on cure, ambient temperature, relative humidity, drum batch number, FIRAS or IFC third-party witness signature). Retention is 5-10% held at practical completion + half released six months later + the rest at the end of the 12-month defects-liability period. Reverse-charge VAT applies on every commercial sub-contract invoice. The cash cycle is 30-60 days against PAYE wages on Friday - and the audit trail is the deliverable.
This page is for decorators whose week is mostly commercial / contract. If commercial is one part of a mixed week, the main decorators page is the better fit. Commercial-contract is its own business because the audit trail is what the customer is buying - and the build is shaped around making the BS EN 13381 evidence capturable in 60 seconds at the door rather than reconstructable on the back of a delivery note six months later.
What your week actually looks like
- A care-home contract with intumescent paint on structural steels - Nullifire / Hempel / Sherwin-Williams Firetex / Jotun / PPG - DFT readings to a 90-minute fire rating, drum batch numbers logged, FIRAS or IFC third-party witness signed off per zone.
- A main contractor’s interim valuation with 30-day terms, 5% retention deducted, the reverse-charge VAT line worded the way the QS’s bookkeeper expects.
- RAMS / method statement for occupied-office spray, dust extraction, isolation, COSHH for 2K lacquer ISO - a different version per project, plus the LEV (Local Exhaust Ventilation) record alongside.
- CHAS / SafeContractor / Constructionline annual re-accreditation with the same paperwork pack assembled four different ways.
- A snag-list at practical completion with photo evidence the architect’s contract administrator wants on a single PDF by Friday.
- Retention release on the office fit-out from last October - half came in May, the other half is due next November, you’ve nearly forgotten the project.
- A FIRAS or IFC third-party witness booked for the intumescent installation - half a day’s notice and the application sequencing has to be right.
- COSHH for isocyanate 2K lacquer alongside RPE face-fit testing for the spray-finish team - every applicator’s certificate, every test date, every next-due date, currently in three glove-boxes.
- HSG264 lead-paint surveys on pre-1960 commercial properties - strip-out triggered without an in-date R&D survey on file and the project halts.
- An office fit-out with phased painting around the M&E, the joinery and the partitioning trades - five separate visits to one site, the main contractor’s PM moving phases on Tuesday afternoons.
- IPAF cards for the spray-team operating the cherry-picker on the atrium intumescent - next-renewal dates, on-site insurance, the MEWP itself hired through Nationwide Platforms / HSS / Speedy and the off-hire reminder you missed last September.
- CSCS card renewals for the lads - one expired in August and the principal contractor flagged it at the gate.
This isn’t a job-management software problem. It’s an audit-trail-is-the-deliverable problem with a 30-60-day-plus-12-month-retention cash cycle stapled to it.

Example problems we could solve
1. Intumescent application records + BS EN 13381 audit pack on demand
The “on the back of a Nullifire delivery note” moment: “Care-home contract last year. Intumescent on the structural steels - Nullifire S707-60 - DFT readings, drum batch numbers, third-party witness. Six months later the contractor’s QS wants the paperwork. I’ve got it scattered across three notebooks, a delivery-note pad and the lad’s phone.”
Solved looks like: every intumescent application visit captures structured fields on the tablet - substrate (universal column / beam / sheet steel + section reference per the structural-engineer’s drawings), specified fire rating (30 / 60 / 90 / 120 minutes), product (Nullifire / Hempel / Sherwin-Williams Firetex / Jotun / PPG with the drum batch number), wet-film thickness on application, dry-film thickness on cure (per coat), ambient temperature, relative humidity, applicator name with CSCS card reference, FIRAS or IFC third-party witness signature, photo evidence per zone per coat. The BS EN 13381 audit pack assembles on demand as a single PDF for the architect’s contract administrator + the fire engineer + the Building Control officer + (years later) the FRA assessor. Spec-vs-actual variance flags automatically - a coat that didn’t hit the spec’d DFT triggers a re-coat task with the witness re-booked and the schedule re-cascaded into the main contractor’s Procore / Aconex / 4Projects / Asite where they run it. The commercial-specific moment: intumescent paint is the fire compartment, the audit trail is what evidences it, and the build is shaped around capturing the trail at coat-by-coat granularity at the door rather than reconstructing it on a Sunday evening.
2. CDM 2015 + RAMS + COSHH + RPE face-fit + CSCS / IPAF register as one structured store
The three-glove-box moment: “Office fit-out, occupied. RAMS for the dust extraction, COSHH for the 2K lacquer ISO, RPE face-fit for the spray team. Last RAMS was three years ago in Word and I’ve lost the file; the face-fit certificates are in three different glove-boxes; the principal contractor’s HSE inspector visit is Tuesday.”
Solved looks like: the commercial decorator’s CDM + RAMS + COSHH + RPE / LEV records as one structured store. Per project, a RAMS template generates from a decorator-specific library - strip-out (working at height, lead-paint flag for pre-1960 via HSG264, dust, manual handling), dust extraction + LEV, occupant-liaison protocol (occupied-house cascade from the hub, applied to occupied-office), COSHH per product (oil-eggshell, water-based, 2K lacquer ISO with isocyanate guidance), spray-finish PPE + RPE specifics. The RPE face-fit register lives per applicator - each tester certificate, each test date, each next-due date - so a principal-contractor HSE inspector visit answers in five clicks. CSCS card register tracks per-lad expiry; IPAF / MEWP cards for the cherry-picker team track alongside, with off-hire reminders for the platform hire itself (Nationwide Platforms / HSS / Speedy) so the off-hire isn’t the £400 surprise on next month’s statement. CHAS / SafeContractor / Constructionline annual evidence packs assemble on demand from the same store. The commercial-specific moment: the spray-finish team’s RPE is the regulatory tripwire most often missed; the CSCS / IPAF expiry is the gate-block; the build is shaped around making the next-due date visible before the next spray job, not after the principal contractor’s gate-check rejects the lad.
3. Reverse-charge VAT invoicing + retention release tracker
The “QS won’t pay” moment: “Interim valuation for the office fit-out goes in. Main contractor’s QS holds it because the reverse-charge VAT wording’s wrong. Same dance with retention release a year later - half at PC came in May, second half due next November, I’d nearly forgotten about it.”
Solved looks like: the commercial invoice as a line-level engine - labour-and-services lines reverse-charge, materials supplied direct don’t, the engine handles the split inside one PDF with the statutory wording HMRC and the main contractor’s QS both recognise. Retention tracked as a first-class object - the percentage, the practical-completion date, the first-half release date six months on, the end-of-defects-liability date 12 months on, the second-half release date. Each release date triggers a friendly chase to the QS 30 days before with the snag-list sign-off and the as-built evidence attached so the conversation is short. (Same engine shape as the commercial-fit-out builder spoke and the commercial plumber spoke, tuned for decorator-side line items.) The commercial-specific moment: retention release is the bit that legally should happen but practically gets forgotten until you remind the QS - the build is shaped around making the reminder land in his inbox with the evidence already attached, in your voice, not theirs. The longer version lives at Invoice & Dunning Ladder; the CIS-treatment side at Multi Channel VAT & CIS Invoicing; the stage-payment + retention ledger at Stage Payment & Retention Ledger.
4. Phased fit-out scheduling + main-contractor coordination
The “five-phase fit-out” moment: “Five-phase fit-out around the M&E, the joinery and the partitioning. Painted phase 1 in March, phase 5 in July, snag list ran through August. The main contractor’s PM kept moving phases on Tuesday afternoons. I never knew which week I was on site, and the lads’ diaries kept slipping.”
Solved looks like: the phased fit-out as a multi-visit project. Each phase locks in with the main contractor’s PM through the main contractor’s collaboration platform (Procore / Aconex / 4Projects / Asite) where they’re running it, or through a structured email exchange where they’re not; the painter’s diary updates when the M&E / joinery / partitioning trades slip. Phase-by-phase RAMS update; phase-by-phase intumescent application captures (where applicable); phase-by-phase snag-list. Final practical completion triggers the retention clock from problem 3. The commercial-specific moment: the painter is usually last on a phased fit-out and absorbs the cumulative slip from every preceding trade; the build is shaped around making the slip visible early enough to re-rota the team rather than absorb it as unpaid overtime.
5. The intumescent + commercial-paint price-book that knows the contract
The “wrong-paint” moment: “Spec called for Nullifire S707-60 to a 60-minute rating on the columns. Lad pulled S707-90 off the rack at Brewers - different drum, different price, different DFT spec. Spotted it at the third coat. Half a day re-doing, three drums written off.”
Solved looks like: the project price-book lives against the contract - every spec’d product, every drum SKU, every DFT spec, every coat sequence - and the application tablet only lets the applicator select from the spec’d products for that contract. Trade-supplier price feeds (Crown Trade Centre, Brewers Trade Centre, Dulux Decorator Centre, the specialist coating suppliers) feed the cost-per-litre back into the project margin in real time. Substitutions vs the spec flag automatically - same shape as the builder’s supplier-statement reconciliation on the builders hub, tuned to commercial-coatings volumes - and the customer-side variation goes through a formal RFI rather than a Tuesday-afternoon phone call. The commercial-specific moment: spec compliance is what the audit pack is evidencing, and a spec drift at the rack is the silent margin killer.

Closest builds we’ve shipped
- HC Electricaldifferent trade, same CIS + reverse-charge VAT + commercial-sub flow on the electrical side. The reference for how the commercial-cert + retention-tracker shape runs in a Suffolk trade business. (Pull-quote held behind the permission checklist; see Hc Electrical.)
- mendbuddythe multi-channel AI agent platform behind the inbound triage on the brand-band and the contract-vs-domestic enquiry split. Useful when a main contractor’s PM and a homeowner are both trying to reach the same inbox. See Mendbuddy.
- MMI Serviceslegacy insurance-claims surface, being modernised. Proof we can take over and modernise older internal systems - useful when a main contractor mandates a specific construction-collaboration platform (Procore, Aconex, 4Projects, Asite) and the work has to live alongside it without rip-and-replace.
A named commercial-decorator case study isn’t yet in the portfolio. When one lands and clears permission, it’ll appear here.
FAQ
Will the intumescent record satisfy a Building Control / FRA audit five years later?
Yes - the audit pack lives in the project record indefinitely. Each coat carries the substrate reference, the product drum batch number, the DFT, the ambient conditions at application, and the FIRAS or IFC witness signature. BS EN 13381 evidence is captured in the spec’d format.
Will you take on CDM 2015 principal-contractor duties on a commercial job?
No. CDM duty-holder roles are professional appointments held by the construction client + the appointed parties. We build the evidence record, the RAMS templates, the F10 notification reminder where the project crosses the >30-working-day / >20-worker / >500-person-day thresholds, and the H&S file extracts for handover. The responsibility stays with the appointed parties.
Can the engine integrate with Procore / Aconex / 4Projects / Asite?
Yes for the major construction-collaboration platforms - interim valuations submit through the main contractor’s preferred channel, snag-lists upload as PDFs, RFIs flow through where the main contractor runs them. We don’t try to replace the platform; we make sure your end works inside theirs.
Will you handle FIRAS / IFC third-party witness scheduling?
We build the reminder and the booking-request side; the witness themselves comes from the certified body (FIRAS Approved Contractor Scheme / IFC Certification). The build is shaped around making the witness booking land at the right point in the application sequence - not after the second coat is on.
Will you handle HSG264 lead-paint surveys for me?
No. The R&D survey is a UKAS-accredited surveyor’s appointment, not a software function. We build the survey-in-date check that triggers before any pre-1960 strip-out, so the project doesn’t halt at the gate.
What about CSCS / IPAF / MEWP card management?
We track per-operative expiry dates and fire a reminder 30 days before next-due; the renewal itself is each lad’s responsibility through CITB / IPAF directly. Off-hire reminders for the MEWP itself (Nationwide Platforms / HSS / Speedy) land in the same calendar.
What does it cost?
Every build is scoped per firm - depends on commercial project volume, intumescent share of the work, retention exposure, what main contractors you sub to, what collaboration platforms you need to live inside. We talk it through, agree price in writing. See pricing.
Up to the hub
← UK painters and decorators (main page) · Property maintenance (sibling) → · Commercial fit-out builder (adjacent trade) → · Commercial plumber (adjacent trade) → · Commercial electrician (adjacent trade) →
Tell us about the commercial side
What main contractors you work with, what intumescent volume you carry, what CHAS / SafeContractor / Constructionline status you hold, where the retention sits, what collaboration platforms (Procore / Aconex / 4Projects / Asite) you live inside. Send an enquiry - we’ll sketch what we’d build.