Starting a Property Maintenance Business in the UK: The Complete Guide

Starting a property maintenance business in the UK takes a registered business, public liability insurance, CIS registration with HMRC before your first subcontractor payment, a bench of vetted trades and one commercial client who buys repairs in volume. No general contractor licence exists here. I built mine into a lean operation running a 1,500+ subcontractor network; this is the complete setup, in order.

What a property maintenance business actually sells#

Three kinds of work: reactive repairs (leaks, locks, boilers, damp), planned maintenance (voids between tenancies, redecoration, gutter and roof cycles) and compliance-driven jobs (works flagged by gas, electrical and damp inspections). The buyers who matter are letting agents, portfolio landlords, housing providers, insurers and commercial premises managers - clients with statutory duties, many properties and no interest in managing fifteen trades. They buy maintenance by the year, not by the emergency, and what they are really buying is accountability: one number to call, vetted trades, evidence of work done, a warranty behind it.

Homeowners are fine for filler volume, but the business is built on clients who send the next job without being sold to. That choice - businesses over homeowners - is also the escape from the underpriced-handyman trap that eats most new starters.

Sole trader or limited company#

Both work at the start. Sole trader is simpler: register for Self Assessment, keep clean records, trade. A limited company costs £50 to incorporate online at Companies House and buys you liability separation - worth having once you are carrying warranty obligations and subcontractor risk on other people's properties. Corporation tax runs 19% on profits up to £50,000 and 25% above £250,000, with marginal relief between. Separate business banking from day one either way.

VAT: registration becomes compulsory when taxable turnover passes £90,000 on a rolling 12 months. Do not register voluntarily while your customers are homeowners - it adds 20% to your price or takes it from your margin. Once you are VAT-registered and working for other CIS contractors, note the domestic reverse charge: on qualifying construction supplies between VAT and CIS registered businesses, the customer accounts for the VAT, not you. Your accountant sets this up once; you just need to know it exists.

The compliance stack nobody can skip#

• CIS, before your first sub payment. Most repair and maintenance work counts as construction operations under HMRC's Construction Industry Scheme. Register as a contractor, verify each subcontractor with HMRC, deduct from the labour element at 20% (registered subs), 30% (unverified) or 0% (gross payment status), pass deductions to HMRC and file monthly returns by the 19th - telling HMRC on months you paid nobody. Late returns start at £100 in penalties. It is a morning of admin that keeps you legal; skipping it is how new maintenance firms meet HMRC.
• Public liability insurance. £1m minimum; £2m-£5m is what letting agents and housing providers typically require before you are on their list. Make sure the policy reflects a subcontracting model, and require every sub to carry their own PL cover - collect the certificates.
• Employers' liability insurance. A legal requirement (£5m minimum) the moment you employ anyone. Genuine subcontractors do not trigger it, which leads to:
• Employment status discipline. Control a sub's hours, van and methods and HMRC may decide you have employees, with back taxes to match. Real subs price their own work, use their own tools and can send a substitute.
• Registered trades for regulated work. Gas work requires a Gas Safe registered engineer. Notifiable electrical work in dwellings falls under Part P of the Building Regulations in England and Wales and needs a registered installer or building control sign-off. You do not need these registrations personally if your subs hold them - you need to verify that they do.
• A written scope per job. One page: included, excluded, what triggers a variation. Change-order leaks are scoping failures.

What the first 90 days actually cost#

Nobody publishes this honestly, so here it is. Figures are current at the date at the foot of this post; check them before you pay, because they move.

• Company incorporation: £50 online at Companies House, or £0 if you start as a sole trader.
• CIS contractor registration: free. It costs you a morning, not money.
• ICO data protection fee: £52 a year for a micro business (tier 1: up to 10 staff or £632,000 turnover), £78 at tier 2, with a £5 discount for paying by direct debit. This one catches people out. The moment you hold tenant names, addresses, phone numbers and key-safe codes on a laptop, you are processing personal data and the fee applies. It is not optional and it is not expensive - it is just forgotten.
• Upper-tier waste carrier registration: £191.02, then £130.25 to renew every three years in England. This is the one almost every new maintenance firm gets wrong. The free lower tier only covers waste you produced yourself - and it explicitly excludes construction and demolition waste. So the moment you cart a ripped-out bathroom or a bag of plasterboard offcuts to the tip, upper tier applies, even though the waste came off your own job. Carrying a client's waste puts you there too.
• Public liability insurance: budget from a few hundred a year at £1m, more for the £2m-£5m cover that letting agents and housing providers actually ask for. Price it against the work you want, not the work you have.

Call it roughly £300-£500 of unavoidable registration and compliance before insurance, and under £1,000 all-in for a lean start. The real capital requirement is not this list - it is the cash flow gap in the section below, and that is the number that decides whether you survive year one.

Doing the work vs subbing it out#

If you are a tradesman, you can start on the tools and your ceiling is your calendar. The alternative is the model this site teaches: win the work as the main contractor, subcontract delivery to vetted trades, keep the spread for winning, scoping, managing and guaranteeing the job. That is construction arbitrage, and it is how maintenance companies scale past their founder. My operation runs entirely this way - plumbing, electrics, roofing, damp, decoration - through a database of 1,500+ subcontractors built one vetted trade at a time. How to find subcontractors covers the sourcing and vetting; you need five reliable trades to start, not fourteen hundred.

Pricing: the number that decides everything#

Figures in GBP. A typical UK main contractor markup on subcontract packages is 10-25%. Reactive maintenance supports more because the management burden per pound is heavier: on my contracts the honest band is roughly 20% gross running lean - win it, place it, oversee lightly - up to about 60% gross in full project-management mode, where we scope, manage, evidence and warranty everything. Where you sit depends on the management you genuinely deliver.

Price from cost up: sub quote, materials, prorated overhead, then margin. And never confuse markup with margin - a 50% markup is a 33% margin, and mispricing that gap compounds into a bad year. The full method is in pricing and margins, and day rate vs fixed price covers which basis to quote on.

Cash flow: the thing that actually kills maintenance firms#

Letting agents and housing providers pay on 30-day terms that often stretch to 45 in practice. Your subbies need paying in days - fast payment is exactly how you become the contractor they answer first. That gap is the number one killer of new maintenance businesses, and the defences are structural: terms agreed before the first job, deposits where the client type allows, staged billing on larger jobs, invoice factoring priced into your rate where you must. UK law is on your side at the margins - the Late Payment of Commercial Debts (Interest) Act lets you charge statutory interest at 8% plus the Bank of England base rate on late commercial invoices - but the real fix is never letting one slow payer become your whole pipeline. The full playbook is cash flow and getting paid.

Winning the first contract#

One good commercial relationship outworks a hundred leaflets. Walk into letting agents with a one-page offer: response times, trades covered, evidence with every invoice, one number to call. Chase portfolio landlords through local landlord associations and forums. Get onto insurers' and managing agents' approved lists once your insurance and CIS are in place. Answer the phone - in this market, availability is a differentiator. How to find clients goes deeper on every channel.

The part most starters get wrong is assuming the good work sits behind expensive accreditation. We audited 557 UK routes into maintenance and repair work - housing associations, councils, insurer networks, facilities managers, main contractors - down to what each one actually asks for at the point of registration. The shape of it is worth knowing before you spend anything:

• 253 are open signup. No invitation, no sponsor, no existing relationship. You register and you are in the pool.
• 367 carry no supplier-side fee at all. On the public-sector portals in particular, registration is funded by the buyer, not you - across 76 organisations checked we found no contractor-side registration fee.
• 210 ask for no named accreditation at registration. The common ask is what you already have by week two: company details, insurance certificates with values, CIS registration, and the trade certificates of whoever does the regulated work.

So the honest sequencing is the reverse of what people assume. Get the cheap compliance stack done, then work the open, free, no-accreditation routes first and let them fund the paid badges later. Constructionline Gold at £599 plus a £99 joining fee is a sensible year-two purchase once you know which buyers keep asking for it - it is a poor week-one one.

Which specific routes are open right now, and what each one wants in its forms, is the work we keep updated inside the Construction Arbitrage community rather than publishing as a list that goes stale in a month.

The first 90 days, in order#

1. Weeks 1-2: structure, business bank account, public liability insurance, CIS contractor registration.
2. Weeks 3-4: five vetted subbies across plumbing, electrics and general building - certificates collected, rates agreed.
3. Weeks 5-8: one commercial demand source signed: a letting agent, a portfolio landlord, an insurer's supply chain.
4. Weeks 9-12: scope templates, payment terms, evidence workflow - then volume.

The 90-day plan sequences the whole thing week by week.

What Reddit says about starting a property maintenance business in the UK#

The UK threads are unusually good on this topic - the 30-day-terms thread, the sole-trader-vs-limited debates, the joiner's warning about underpriced generalist work. I collected the real threads, with links and my own numbers against theirs, in what Reddit gets right about starting a UK property maintenance business.

The full inside account of building this business - the contracts, the subs, the systems - is in THE FAMILY SECRET - How Construction Arbitrage Really Works, coming soon.

Last checked: 25 July 2026.