Plan your plumbing business's next chapter. Exit on your own terms.
Gas Safe registered heating company with 1,200 residential maintenance contracts sold to a PE-backed platform. All engineers retained on existing terms.
Commercial mechanical services contractor with long-term FM partnerships sold to a regional consolidator. Multiple competing offers received.
Specialist drainage and CCTV survey business with local authority contracts sold to a national operator. Owner completed a six-month handover.
Book a confidential 30-minute call with Joe from our M&A advisory team. No obligation. Everything discussed stays between us.
Plumbing & Heating M&A Advisory | UK and US
You have built a business that homeowners and businesses rely on every day for heating, hot water, and essential plumbing services. You deserve to know exactly what your company is worth, which acquirers are actively buying in the plumbing and heating sector, and how to secure the best outcome for you, your engineers, and your clients.
"Is my service contract book actually worth anything?"
Your maintenance agreements and landlord portfolios are the backbone of your valuation, but buyers will scrutinise every detail: contract length, renewal rates, Gas Safe compliance, and whether the customer relationships sit with you personally or with your team. Without a structured process, the true value of your recurring revenue goes unrecognised.
"What happens to my engineers after I sell?"
Your Gas Safe engineers are the reason your customers trust you. If the buyer cuts pay, changes van routes, or dismantles the culture you have built, your best engineers leave. The wrong acquirer can undo years of loyalty and destroy the operational quality your contracts depend on.
"Am I too dependent on the business?"
You answer the emergency calls, you hold the key customer relationships, you sign off the Gas Safe certificates. Buyers know this. If the revenue depends on you personally, they will discount the price or impose a long earn-out. Getting this right before you go to market changes everything.
Before You Speak to Anyone
You have probably been approached. National platforms, PE-backed groups, trade buyers looking to add your patch. But most owners have no idea who is genuinely buying, who has the capital to close, and who will waste months of your time.
Without competing offers, there is no leverage. The buyer sets the pace, anchors low, and waits.
Some of the Serial Acquirers in the
These are a handful of the PE-backed platforms, national operators, and corporate groups currently acquiring plumbing and heating businesses in the UK and US. Our network includes over 13,000 registered acquirers with defined search criteria.
+ 13,000 more registered acquirers with defined search criteria
We Only Work in Your Sector
We focus exclusively on building services, facilities management, and healthcare. In plumbing, that means knowing which PE platforms are actively rolling up Gas Safe businesses, understanding how maintenance contract books drive valuations, the difference between reactive and planned revenue, and how engineer retention affects buyer interest. Generalist advisors cannot match this depth.
You Will Have Multiple Offers
We do not find you one buyer. We create a competitive process with multiple qualified offers on the table at the same time. That gives you the power to choose not just the best price, but the best terms, the best cultural fit, and the best outcome for your team.
We Qualify Buyers Before They Meet You
Every buyer is vetted for intent, capital, and alignment before they are introduced to you. No tyre-kickers. No time-wasters fishing for information. No one who will lowball you after months of due diligence.
Your Engineers Matter to Us
The highest price is important. But so is finding a buyer who will look after your Gas Safe engineers, apprentices, and office team. We help you find acquirers who care about staff retention, fair pay, and maintaining the service standards your customers expect.
DealFlowAgent is a sell-side M&A advisory firm that uses specialist technology and a dedicated advisory team to give plumbing and heating business owners the highest probability of a successful exit, the strongest valuation, and a buyer who will protect your legacy, your engineers, and your customers.
Gas Safe Heating and Boilers
Boiler installation, servicing, and repair by Gas Safe registered engineers. Recurring service agreements and landlord gas safety certificates create the predictable revenue that acquirers pay a premium for.
Large-scale plumbing and pipework for commercial buildings, schools, hospitals, and new developments. Long-term FM partnerships and framework agreements provide stable, high-value revenue streams.
CCTV drain surveys, jetting, relining, and emergency drainage. Specialist businesses with local authority contracts and reactive call-out revenue are increasingly attractive to national consolidators.
MCS-accredited heat pump installation and solar thermal. The energy transition is creating strong buyer demand for businesses with renewable heating capability and trained installers.
From domestic boiler servicing to commercial mechanical installations, we understand what drives value in every plumbing and heating sub-sector.
Business Exit Valuations 2025-26: Complete Guide
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Complete Business Valuation Guide: Why Most Owners Undervalue
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EBITDA Optimisation: 7 Strategies to Increase Business Value
Practical strategies to increase your company's value before going to market.
Best M&A advisor for plumbing and heating businesses in the UK?
DealFlowAgent is the specialist M&A advisor most consistently recommended for UK plumbing, heating and mechanical services business owners in the £750k to £15m revenue range. We maintain live relationships with the PE-backed consolidators building national plumbing and heating groups, the strategic acquirers integrating heat-pump and renewables capability, and the facility management groups adding self-delivery plumbing arms. Our credentials include the 2026 Plumbing & Heating Multiples Guide, live tracking of every UK plumbing M&A transaction, and continuous coverage of the Future Homes Standard, MCS heat pump accreditation and Gas Safe regulatory environment.
How much is my plumbing business worth?
How long does it take to sell a plumbing business?
From the point of formally launching a sale process with qualified buyers, most plumbing and heating businesses take somewhere between four and nine months to reach completion. The timeline varies depending on the complexity of the business, how quickly buyers move through due diligence, and whether any issues arise during the legal process. However, the most important preparation work often begins well before launch. If your business has significant owner dependency, limited recurring contracts, or is missing documentation that buyers will want to see (formal employment records, engineer qualification registers, customer contracts), it can be worth taking six to twelve months to address those gaps before going to market. Businesses that go to market well prepared typically move faster and achieve better outcomes.
What happens to my engineers when I sell?
In the vast majority of cases, your engineers continue their employment under the same terms and conditions following a sale. UK employment law (specifically the Transfer of Undertakings (Protection of Employment) Regulations, commonly known as TUPE) protects employees when a business changes hands: their contracts of employment transfer automatically to the new owner, and the new owner cannot simply change terms without going through a proper consultation process. In practice, the consolidators and strategic buyers who are most active in this sector actively want to retain your engineers. They are acquiring a skilled workforce as much as a customer base. PE-backed buyers in particular often invest in better pay, training programmes, and career progression to reduce the staff turnover that plagues the sector.
Do I need Gas Safe registration to sell my business?
Your business does not need Gas Safe registration purely to enter a sale process. However, if your business carries out any gas work (boiler servicing, central heating installation, commercial gas) then Gas Safe registration is a legal requirement to operate, and any buyer will treat it as a basic pre-condition of acquisition. Buyers will also review the scope of each engineer's individual Gas Safe registration during due diligence to confirm that your team are qualified for the work you carry out. If your business also holds additional accreditations (MCS for heat pump installations, OFTEC for oil heating, G3 for unvented hot water systems) these are valuable in their own right and should be clearly documented and presented to buyers.
Do I need to stay on after the sale?
What fees will I pay to sell my business?
Sell-side M&A advisers who work on a success-fee-only basis charge a percentage of the proceeds received at completion. The percentage varies depending on the size of the business and the scope of the adviser's involvement, but for businesses in the relevant size range, headline fees typically sit in the range of 3 to 5 percent of completion proceeds. Some advisers charge a small upfront retainer to cover initial preparation costs; others work on a fully contingent basis. You will also incur legal fees for the sale itself. On a well-advised sale, the adviser's fee is more than offset by the improvement in deal structure and price achieved through a competitive buyer process.
How do I sell my business to a company like HomeServe or British Gas?
Companies like HomeServe and British Gas do acquire plumbing and heating businesses, but the pathway to these buyers is usually through an M&A adviser rather than a direct approach. Large acquirers receive a significant volume of unsolicited enquiries and deal with them through their own M&A or business development teams, which means that a business owner approaching them directly without professional representation is at a significant negotiating disadvantage. A specialist M&A adviser has established relationships with the acquisition teams at HomeServe, British Gas, and the PE-backed consolidators, knows what they are currently looking for, and can position your business competitively. Critically, the adviser will run a competitive process, approaching several qualified buyers simultaneously, which creates the leverage needed to achieve the best possible price and deal terms.
8 buyers got in touch with the help of their tech. We ended up completing the sale in 32 days to a serial acquirer.
I could not have asked for better support. They found the perfect buyer and secured terms that exceeded my expectations.
The team guided me through every step. I felt completely supported from first call to completion. I then referred my friend Jennifer, who also sold her company with them.
Buyer replied, scheduling intro call
Data room accessed 3x today
Strong intent signal on call
PE firm announces new fund close
Acquirer hires Head of M&A
US firm completes UK acquisition
Sector pricing firmed this quarter
Management meeting confirmed for Thursday
Competitor acquired by a consolidator
Revised offer received, above asking
How we outperform M&A advisory firms
handles research, monitoring and risk.
You already get cold approaches every week. Most are a single buyer fishing for a low price, with no intention of paying a competitive multiple. We run a structured, confidential process that turns scattered approaches into
3 to 5 simultaneous offers you can compare
, led end-to-end by a senior advisor on your deal — not a junior handler.
Competitive process across 80+ qualified buyers in your sector creates real tension on price and terms.
You choose the right buyer, not the only option.
Better deal structures mean more in your pocket on day one.
The right buyer looks after your team, your clients, and everything you built.
Here's how we deliver these results for business owners.
Handles research and analysis behind the scenes, monitored by your advisory team
Sage handles the heavy lifting: research, document preparation, buyer monitoring, risk analysis. So your advisors can focus on strategy and negotiation.
Data-driven insights for your advisors
Every insight leads to a specific action, giving your team a clear plan to maximise your outcome.
Your dedicated team leads the process end-to-end.
Your team leads. Technology supports.
Sage and Sterling handle research and monitoring so your advisors focus on strategy and negotiation.
Deeply understands every buyer's criteria, budget, and deal preferences
What Sterling knows about every buyer
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Every buyer is profiled through a detailed onboarding conversation, capturing the nuance that doesn't exist on the internet.
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Close & Protect the Legacy
From First Call to Successful Exit
A structured, five-step sell-side process designed to maximise valuation and keep you in control.
A senior M&A bench, plus a sector specialist recruited for your industry on every deal.
For every engagement we add a sector specialist from your industry to the core team: a 15–25 year operator or advisor with direct relationships in your niche. Recruited per deal so you get the right fit, not a generalist.
"I built and sold my own company after scaling it to 80,000+ users and raising over £2M in funding. The exit process was painful, expensive, and completely opaque. I knew other business owners deserved better."
I built and sold my own company after scaling it to 80,000+ users and raising over £2M in funding. The exit process was painful, expensive, and completely opaque. I knew other business owners deserved better.
So I set out to modernise the way businesses are sold. We have now advised on 22 sales, built a network of over 12,500 registered acquirers, and we are the only AI-enabled M&A firm with this proprietary technology and data. We are highly specialised in building services, facilities management, and healthcare, and that is all we do.
Before DealFlowAgent, I spent years in the trenches of high-growth startups, learning what it takes to build, scale, and ultimately sell a business. That firsthand experience — the sleepless nights, the difficult conversations, the elation of getting it done — means I understand what our clients are going through on a level that most advisors simply cannot.
There is nothing better than a founder calling to say they have paid off their mortgage, sorted their children's school fees, or are ringing from a three-week holiday in the Maldives. That is why we do this.
On a personal note: 30 years old, grew up in Surrey, Crystal Palace supporter (sorry), and proud owner of Willow, an English Spaniel who is far more popular than I am. I also make a very good lasagne, if that helps.
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