How to Win Commercial Electrical Maintenance Contracts in the UK

Why commercial maintenance contracts change the game

Most electrical businesses run on feast-or-famine cash flow: a big rewire one month, nothing the next. Commercial maintenance contracts break that cycle. A single medium-sized office on a monthly retainer can bring in £500–£1,000 every month, whether your team is busy on other jobs or not.

That predictability changes how you run the business. You can hire a second electrician knowing the contract revenue covers their wages. You can plan PPM visits weeks in advance and fill gaps with reactive work. You stop quoting desperately because you need the job, and start choosing the jobs that actually suit your team. Ten contracts averaging £400/month is £4,800 per month before you quote a single domestic job.

Clients benefit too. A facilities manager with a contracted electrician on call doesn't have to scramble when a distribution board trips on a Monday morning. That value is easy to sell.

What commercial electrical maintenance covers

Commercial maintenance isn't just call-outs. The bulk of contracted work is planned preventative maintenance (PPM) — scheduled visits to carry out fixed tasks on a known frequency. Here's what that looks like in practice:

• Emergency lighting testing (BS 5266-1 / BS EN 62034): clients need a monthly “flick test” of each circuit plus a full 3-hour duration test annually. You issue a certificate and maintain a log. Charge per circuit: £3–£6. A typical office has 20–40 circuits, so £60–£240 per test.
• Fire alarm testing (BS 5839-1): weekly call point tests are usually done by the client, but the quarterly contractor inspection and annual inspection and certificate are yours to provide.
• PAT testing: portable appliance testing is typically annual. Charge £1–£3 per item. A small office with 50 items is a quick morning; a school with 400 items is a full day at £400–£1,200.
• Fixed wire testing (EICR): frequency varies by premises — offices every 5 years, schools every 5 years, entertainment venues every 1–3 years. Bundle EICR into the contract so clients don't shop around when it's due.
• Distribution board inspection: visual checks during PPM visits; torque checks on terminations; record keeping.
• EV charger maintenance: growing fast. Annual inspection and PAT of the charging unit; firmware updates; OCPP fault logs. Charge separately or bundle.

Reactive maintenance — call-outs for breakdowns, tripped breakers, failed luminaires — is either bundled (a fixed number of hours per month included) or quoted separately. Most labour-only contracts include 2–4 reactive hours per month before hourly rates kick in.

Types of maintenance contract

There are three main structures. Choose based on how risky the site looks.

• All-inclusive: a fixed monthly fee covers all labour and standard materials for both PPM and reactive work. Great for clients who want cost certainty; riskier for you on sites with ageing installations. Only offer this once you've audited the site and know the likely call-out frequency.
• Labour-only (most common): a fixed monthly fee covers labour. Materials are charged at cost plus a markup (typically 20–30%). This is the sweet spot — clients get a predictable labour cost; you're not absorbing materials risk.
• PPM-only: the fixed fee covers scheduled visits only. Reactive work is quoted each time separately. Lowest risk for you, but clients pay more overall. Good for clients who are price-sensitive on the retainer but have infrequent faults.

Pricing commercial maintenance

Build your monthly price from the bottom up: calculate the time for each PPM task, add a reactive hours allowance, multiply by your commercial day rate (typically £35–£55/hour in 2026 depending on region), then add admin, certificate generation, and margin.

Line-item the testing within the contract so clients can see exactly what they're getting. A facilities manager who sees “emergency lighting annual duration test: £180” as a separate line item understands the value; a flat monthly fee feels like guesswork to them.

Accreditations clients require

Domestic clients rarely ask for accreditations beyond Part P registration. Commercial clients — especially facilities managers and local authorities — will check before they sign anything.

• NICEIC Approved Contractor: the most widely recognised. Required by most FM companies, commercial landlords, and councils. Non-negotiable if you want to work in this space.
• NAPIT: accepted by most clients as an alternative to NICEIC. Slightly lower annual cost.
• SafeContractor or CHAS: health and safety pre-qualification schemes. Required before you set foot on most commercial sites. Budget £200–£800/year depending on company size. SafeContractor is the more commonly requested of the two, but many clients ask for CHAS; hold both if your contract pipeline justifies it.
• Constructionline: government pre-qualification scheme. Required for public sector, NHS, and many education framework contracts. Tiered membership (Standard, Silver, Gold) at £149–£599/year.
• ISO 9001: quality management system certification. Larger corporate clients and NHS frameworks sometimes require it. Takes 3–6 months to achieve; budget £2,000–£5,000 for consultancy and certification body fees.

Get NICEIC and SafeContractor first. Add Constructionline once you're actively pursuing public sector work. ISO 9001 only makes sense once you're turning over £500k+ and targeting enterprise-level FM companies.

Winning your first commercial contracts

Cold outreach still works if it's targeted. Build a list of commercial premises within 30 minutes of your base — industrial estates, business parks, retail parades, care homes, schools. Use Google Maps, Companies House, and LinkedIn to find the facilities manager or operations director. A short, direct email offering a free site audit (to review their existing EICR and emergency lighting records) gets a surprisingly high response rate because you're giving them something useful, not just asking for work.

Telephone follow-up matters. FMs are busy; emails get buried. A call the week after your email, referencing the audit offer, is how most initial meetings get booked.

Network with commercial estate agents and managing agents. They manage dozens of properties and need a reliable electrician on call. One managing agent relationship can feed you five or ten contracts. Similarly, letting agents who manage commercial units are a constant source of fit-out and compliance work that naturally leads to maintenance relationships.

For public sector work, register on Contracts Finder (free) and monitor the Crown Commercial Service and Procure Partnerships frameworks for electrical maintenance lots. Local authorities, NHS trusts, and school academies all procure through frameworks. Your Constructionline registration is the entry ticket.

When you present to a prospective client, lead with compliance risk, not price. A care home manager who discovers their emergency lighting hasn't been tested for two years faces a prosecution risk. Frame your contract as the thing that removes that risk, not just a cheaper alternative to whoever they use now.

Contract terms and SLAs

A verbal agreement is not a contract. Every commercial maintenance arrangement should be documented, signed, and stored. Key terms to include:

• Minimum term: 12 months at a minimum; aim for 3 years on larger sites. Short terms mean clients can leave after a bad month.
• Auto-renewal: contract rolls over automatically unless either party gives notice. Standard in FM contracts.
• Notice period: 30–60 days written notice required to terminate. Protects your revenue planning.
• Annual price increase: RPI + 1–2%, applied each April. Non-negotiable — without this, inflation eats your margin every year.
• Insurance requirements: minimum £5m public liability and £5m employers' liability. Some large FM companies require £10m. Check before you sign.

Service level agreements (SLAs) are what the client cares about day-to-day. Standard commercial SLAs: emergency response within 4 hours; urgent (non-emergency) response within 24 hours; planned maintenance visit within 48 hours of scheduling. Issue a monthly KPI report showing visits completed, reactive jobs closed, and open defects with remediation timescales. FMs use these reports to justify the contract spend to their directors — make it easy for them.

Managing multiple commercial contracts

One contract is manageable with a diary and a spreadsheet. Five contracts with different PPM schedules, multiple sites, emergency lighting logs, and PAT certificates is a different animal. Job management software — Jobber, ServiceM8, or Simpro (the latter built for larger electrical businesses) — lets you schedule PPM visits months in advance, send automatic reminders, generate certificates, and give clients portal access to their own documentation.

Set every recurring PPM task in the system the day you sign the contract. An annual emergency lighting test 11 months away should already be in the calendar. Reactive jobs should link back to the relevant contract so you can track hours used against what the client is paying for.

Certificates and compliance documents are what clients are actually buying. A client portal where facilities managers can download their latest EICR, emergency lighting test certificate, and PAT log at any time turns a commodity service into something that feels like a proper partnership. It also dramatically reduces the admin calls you'll get when their ISO auditor turns up and needs documents on short notice.