We run the paperwork. You run the jobs.
Optimize Manager handles your quotes, invoices, payment chasing and inbox — so UK plumbing, heating and electrical businesses can focus on the jobs, not the paperwork.
Free · 5 minutes · no card, no commitment.
Inbox cleared · 12 enquiries logged · 2 booked into Tuesday.
Admin is the second job you never invoice
UK plumbing, heating & electrical businesses — all running the same evening paperwork shift
on admin per UK tradesperson — and 52% haven’t had a real holiday in over a year
average wait for payment in UK construction — late payers hold back ~£11bn a year
Sources: ONS/NOMIS (2025) · NOW Report (2026) · Coface (2025) · Small Business Commissioner / London Economics
The pain is real. So is the fix.
I’ve been a plumber / gas engineer around 12 years now and still can’t manage to get customers to pay on time.
Your desk: Your desk runs the ladder — day-3 nudge, day-7 call, day-14 escalation — in your name.
Plumber & gas engineer, ~12 yrs
None of us got into this to sit doing paperwork at 9pm.
Your desk: Quotes typed, sent and followed up the same day — you approve the numbers from your phone.
Building & maintenance firm, 5 staff
Honestly, I just let it go to voicemail and call back at lunch or end of day.
Your desk: Every enquiry answered, logged and booked into your diary — nothing leaks.
Building firm owner
I was managing it all on a spreadsheet and nearly got properly caught out when one of my guys turned up to site with an expired CSCS card. Lost the whole day.
Your desk: Certificates logged to file; renewal dates surfaced weeks before they bite.
Construction firm owner
My wife answers the landline when I’m not there and does a bit of paperwork for me — unpaid.
Your desk: A supervised desk team, not one person — cover is built in when your named contact is off.
Sole trader, electrical
Real voices from UK trade forums. Real problems. One desk that answers all of them.
Diagnose first. Commit never — until it works.
Free mini-audit
Five minutes, six questions. An honest read on where your week goes — and which lane to fix first.
Get your free audit
Paid diagnostic
A bounded week: we map your workflows, time the leaks, and hand you the findings whether or not you continue.
How the diagnostic works
Pilot week → retainer
One real workflow, run live for a week. If it holds, a rolling monthly package. If it doesn’t, you keep the map.
How engagements runPick your trade
✓Evening inbox, clearedPlumbing & heating
CP12s, Gas Safe renewals, quote follow-ups and invoices that go out days late — the admin around the compliance, handled.
For plumbing & heating
✓Certs tracked, dates surfacedElectrical
EICRs, test certs, EV and solar enquiries growing faster than the office can process — the admin around the paperwork, handled.
For electricians
✓Fit checked honestlyMulti-trade & maintenance
Run a mixed or different trade? The desk model fits most field-service firms — the free audit tells you honestly whether it fits yours.
Check your fitRun your own numbers — free
Late-payment cost
What chasing invoices actually costs you — plus the statutory interest you’re owed under the 1998 Act.
CalculateAdmin-hours cost
Your evening hours priced at real ONS wage rates — versus what a part-time bookkeeper actually costs.
CalculateJob-to-invoice lag
The float gap between finishing work and billing it — your cash, sat in a van.
CalculateWhat we don’t do — read this first
No certificates, sign-offs or regulated submissions — your engineer and your accountant keep their legal jobs. No debt collection. No people-supply. Boundaries are part of the product.
Asked often
Is this just a virtual assistant?
No — a solo freelancer is one person with no cover and no supervision. This is a managed package: a supervised team, defined workflows, and cover when your named person is off. You buy the outcome, not a person to manage.
Who does the work — and where?
A supervised UK and Sri Lanka team under one UK contract, with a named UK contact — both sides of the desk work as one. The managed-service structure means the accountability sits here, not offshore.
What does it cost?
The mini-audit is free. The diagnostic is a fixed, bounded fee agreed before we start. Monthly packages are quoted from your diagnostic — we don't publish a price we can't stand behind.
Can we start small?
That's the only way we start — free audit, then a fixed-fee diagnostic, then a paid pilot week on one real workflow. The evidence either earns the retainer or it doesn't.
Start with the free 5-minute read
Six questions about your week — instant, honest maths on where the admin sits and what it’s costing.
Get your free audit