Selling an Electrical, Plumbing, or Mechanical Trades Business in the UK

If you run an electrical contracting, plumbing, HVAC, or M&E business and you're thinking about an exit, there is a genuine and active buyer market for well-run trades businesses in the UK right now. Valuations typically sit between 3x and 6x EBITDA for most operators, but businesses with strong PPM contract books, recognised accreditations, and reduced owner dependency regularly attract interest at the top of that range — or above it. The shape of your revenue, not just the size of it, is what buyers are really scrutinising.

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What are trades businesses typically worth?

The honest answer is that it depends heavily on revenue mix. Here is a broad guide to where valuations land for UK M&E, electrical contracting, plumbing, and HVAC businesses:

Business TypeTypical EBITDA MultipleKey Factors
Purely project/one-off work2.5x – 3.5xLow recurring revenue, higher risk profile
Mixed project and some PPM3.5x – 4.5xModerate quality of earnings
Strong PPM contract book (40%+ of revenue)4.5x – 6xPredictable revenue, attractive to FM consolidators
Specialist compliance-heavy work (e.g. healthcare, data centres)5x – 7x+Sector scarcity, framework relationships, accreditations
Multi-discipline M&E with blue-chip frameworks5x – 7x+Strategic value to acquirers building platforms

These are EBITDA multiples on normalised, sustainable profit — not turnover. If you have £800k EBITDA and a solid PPM book, a 5x multiple puts your equity value at £4m. The normalisation process matters: add back genuine one-off costs, owner salary above market rate, and any personal expenses run through the business. Your advisers will do this with you, but understand going in that EBITDA and the multiple are both negotiated.

What drives valuation in an electrical or M&E business?

Planned preventative maintenance contracts are the single biggest value driver in this sector. A business generating 40–60% of revenue from PPM contracts — regular scheduled visits to commercial or public sector clients — carries a fundamentally different risk profile to one doing project-by-project work. PPM revenue is contracted, recurring, and predictable. Buyers can model it. That certainty is worth money.

Beyond PPM, the following create material value:

  • Framework agreements with public sector bodies, NHS trusts, local authorities, housing associations, or blue-chip commercial clients. Being on a multi-year framework is worth significantly more than a customer relationship that renews informally.
  • Accreditations: NICEIC or ECA approval for electrical contractors; Gas Safe registration for gas and heating businesses; BESA membership for building engineering services; F-Gas certification for refrigeration and air conditioning. These are not optional for quality buyers — they are prerequisites. Without them, the buyer pool shrinks dramatically.
  • Revenue diversification: Buyers worry about concentration. If one client represents more than 20–25% of turnover, expect questions. If it's above 40%, expect a price chip or an earnout structure that reflects the risk.
  • Subcontractor management systems: If your business uses subbies heavily, buyers want to understand IR35 compliance, payment terms, and whether those relationships are truly subcontractor arrangements or disguised employment.

Who is buying trades businesses in the UK?

There is genuine strategic and financial appetite for well-run trades businesses right now. The buyer universe includes:

Facilities management consolidators: Large FM businesses — including major names operating in hard FM — are consistently acquiring trades contractors to bring services in-house and improve their margins on managed contracts. The logic is straightforward: if you're paying a subcontractor for electrical maintenance on a facilities contract, buying that capability makes commercial sense.

PE-backed M&E platforms: Private equity has been building M&E services platforms by acquisition for several years. The model is to buy a regional operator as a platform, then add bolt-ons. If your business is the right size (typically £1m+ EBITDA) and geography, PE-backed consolidators may well be the best-paying buyers in the room.

Trade buyers — specialist M&E contractors: Regional and national M&E contractors growing by acquisition, particularly where your geography, client base, or technical specialism fills a gap they cannot fill organically.

Management buyouts: Where there is a capable management team beneath you, an MBO is a viable option — though it typically requires external debt or equity funding to work, and the price is usually lower than a third-party sale.

How does owner dependency affect your sale price?

This is the most common issue we see in trades businesses, and it suppresses valuations more than almost anything else. Many owners of electrical, plumbing, or M&E businesses are the most technically qualified person in the business. They hold the key relationships with the clients who renew the PPM contracts. They are named on the accreditations. Suppliers deal with them personally.

Buyers are not buying your skills or your relationships. They are buying a business that will continue to perform after you leave. If the answer to "what happens when the owner exits?" is "we're not sure," the price reflects that uncertainty.

Practically, this means:

  • If you are the NICEIC Qualifying Supervisor or the Gas Safe Responsible Person, you need a transition plan before going to market.
  • If key clients only deal with you, you need to have started handing those relationships to your operations manager or contracts manager.
  • If your absence for four weeks would cause operational problems, buyers will see that in due diligence.

You don't need to have solved this entirely before you sell — but you need to have started, and you need to be able to articulate the transition plan credibly.

What do buyers need to know about Gas Safe and other accreditations?

Gas Safe registration sits with the business, but the individual engineer registrations sit with each engineer. When a business is acquired, the Gas Safe registration transfers — but this must be managed carefully during the transition. If the business changes legal entity (for example, through an asset purchase rather than a share purchase), the registration may need to be reapplied for, which takes time and creates a gap in trading capability.

Most quality buyers will structure the acquisition as a share purchase specifically to avoid this problem, but it should be discussed explicitly with your legal advisers at Heads of Terms stage.

The same principle applies to NICEIC and ECA approval — these are registered to the business entity, and the Qualifying Supervisor named on the registration needs to remain in post (or a replacement nominated) for continuity of accreditation.

Raise these questions early. A buyer who understands the sector will ask them anyway, and a buyer who does not ask them is a buyer who may create problems for you during transition.

What does a typical sale process look like?

For a trades business in the £500k–£3m EBITDA range, expect the following:

  1. Preparation (2–4 months): Normalise EBITDA, compile a PPM contract schedule, prepare accreditation documentation, draft an Information Memorandum. Address any obvious structural issues (key man risk, IR35, contract gaps).
  2. Go to market (1–2 months): Approach strategic buyers and PE-backed platforms confidentially. Non-disclosure agreements signed before any financial information is shared.
  3. Indicative offers (4–8 weeks): Buyers submit non-binding Heads of Terms. Price, structure (share vs asset), earnout provisions, and management retention terms are negotiated at this stage.
  4. Due diligence (6–10 weeks): Legal, financial, and commercial DD. Accreditation status, TUPE schedules, contract terms, and client concentration will all be examined.
  5. SPA negotiation and completion (4–6 weeks): Share Purchase Agreement drafted and negotiated. Completion accounts mechanism agreed. Deferred consideration or earnout milestones confirmed.
  6. Total timeline: Most trades business sales take 6–12 months from start to completion. If you need to exit inside six months, that is possible but creates pressure that can cost money.

What about TUPE exposure for site staff and engineers?

TUPE applies automatically on the sale of a business as a going concern. Your engineers, site supervisors, and operational staff transfer to the buyer with their existing terms and conditions intact. This is well understood by trade buyers and PE-backed acquirers, and it is rarely a dealbreaker — but it does need to be managed properly.

Where TUPE becomes more complex is where your business is the subcontractor on a facilities contract that is subsequently retendered. If a client moves their FM contract to a different provider, your engineers on that contract may transfer to the incoming contractor — taking their employment rights with them. Buyers who are building FM platforms are alert to this and will want to understand how your site-specific workforce is structured and contracted.

If your business provides services into the FM sector or operates under managed service contracts, you may also find Selling a Facilities Management Business in the UK relevant — the buyer universe and valuation dynamics overlap considerably. Before going to market, it is also worth reading our guide on How to Reduce Owner Dependency Before Selling, which addresses the practical steps trades business owners can take to strengthen their position ahead of a sale.

FAQ

What multiple will I get for my electrical contracting business? Most electrical contractors sell at 3x–5x EBITDA. If you have a strong PPM contract book, NICEIC or ECA accreditation, and a management team that does not depend on you, the upper end of that range — or above — is achievable. Pure project businesses with no recurring revenue typically sell at 2.5x–3.5x.

Do I need to be Gas Safe registered to sell my business? Your business's Gas Safe registration needs to be current and properly maintained. Individual engineer cards also need to be valid. If there are lapses or compliance gaps, resolve these before going to market — buyers doing due diligence will find them.

Will buyers want an earnout? If your business has significant owner dependency or client concentration risk, buyers may structure part of the consideration as deferred, contingent on post-sale performance. Earnouts are common in this sector where the owner has key relationships. Negotiating the terms carefully — particularly what counts as "revenue" or "EBITDA" in the earnout calculation — matters a great deal.

What tax will I pay when I sell? On a qualifying share sale, Business Asset Disposal Relief (BADR) may reduce your effective CGT rate to 10% on the first £1m of qualifying gains. Above that, the standard CGT rate for higher rate taxpayers currently applies. Tax treatment depends on deal structure, consideration type, and your personal circumstances. This article contains general information only and does not constitute financial or tax advice. Every business sale is different. Speak to a qualified UK tax adviser about your specific situation before making any decisions.

Can I sell if I'm the only qualified engineer in the business? You can attempt to, but it will limit your buyer pool and suppress your price. The more credible path is to spend 12–24 months before sale ensuring at least one other person holds the relevant qualifications and client relationships. A buyer needs to see that the business continues without you.

How long does it take to sell an M&E or trades business? From beginning preparation to completion, expect 6–12 months for a business in the £1m–£10m revenue range. Complex deals — particularly where there is PE involvement, a detailed earnout, or accreditation transition issues — can run longer. Starting earlier than you think you need to is almost always the right call.

Get a free valuation estimate

To get a sense of where your business might sit in the current market, use the free valuation calculator on the Succession Group website. It takes around five minutes, uses sector-specific data, and gives you a realistic starting point before you speak to anyone.