Selling or partnering your HVAC maintenance company in France: a contract business buyers are looking for

A heating, ventilation and air conditioning (HVAC) company was long handed on in the simplest way: to a child, to a team leader turned partner, or to a peer in the department who took over the contracts and technicians. This model still exists, but it is no longer the most common once a company passes twenty employees. Over the past ten years, energy services groups, multi-technical mid-caps, investor-backed regional networks and infrastructure funds have been buying building services SMEs by the dozen, for their maintenance contracts, qualified teams and local presence.

For the owner of a company of ten, forty or a hundred and fifty people, this changes the options available and how to prepare. Hundreds of SMEs have a contract base, a tertiary or industrial client base and certified technicians that buyers struggle to build on their own. This situation obliges no one to sell, but it makes it hard not to ask the question.

A market of SMEs backed by €13 billion of energy services

FEDENE, which brings together energy and environmental services companies, has around 1,500 member companies, 50,000 employees in France and €13 billion in annual revenue. ¹ Its branch employs more than 44,500 people, recruited nearly 6,000 in 2025 and has 92.4% permanent contracts. ¹ On the construction side, the French building federation's trade union covering building services, roofing and plumbing brings together 15,000 companies and 163,000 jobs, 75% of them in firms with fewer than ten employees. ² Refrigeration and air conditioning, tracked by the trade body SNEFCCA, represented 34,500 employees in 2023, up 6% from 2021, in a fabric where 91% of companies have fewer than twenty people. ³

Two features stand out. The sector is extremely fragmented, with a few national groups and thousands of local SMEs, classic ground for consolidation. And it lacks hands: SNEFCCA describes near-zero unemployment in refrigeration and air conditioning, with a hiring rate of 18.5% in 2023 and almost as many departures. ³ A loyal team of technicians is therefore often worth more to a buyer than a works order book. The equipment market is mixed: according to the manufacturers' association Uniclima, sales of air/water heat pumps fell 1.8% in 2025 and gas and oil boilers 5.2%, in a market limited "almost entirely" to replacement, while air/air heat pumps exceeded 803,000 units. ⁴ The installed base, however, is growing and becoming more complex, and it is what feeds maintenance.

The five drivers of consolidation

Owner demographics and the technician shortage. A generation of founders who set up in the 1980s and 1990s is reaching decision time, often without an internal buyer able to finance a takeover. Recruiting an experienced refrigeration engineer has also become an obstacle course: for a group, buying an SME with thirty certified technicians is faster than thirty hires.
The tertiary decree and the BACS decree. Tertiary buildings over 1,000 m² must cut their final energy consumption by 40% by 2030, 50% by 2040 and 60% by 2050, and report it each year on the OPERAT platform. ⁵ The BACS decree requires building automation and control for heating and cooling systems above 290 kW since 1 January 2025, and above 70 kW from 1 January 2027, with an inspection at least every five years. ⁵ The maintenance provider thus becomes an energy performance partner, with lasting demand for controls and supervision.
The switch of installed equipment and the F-Gas regulation. Replacing oil and gas boilers with heat pumps and the rise of air conditioning change the skills required. EU regulation 2024/573 has banned since 1 January 2026 the use of virgin high global warming potential refrigerants for servicing air conditioners and heat pumps, with further restrictions until 2032. ⁶ Each step requires training, certificates and investment that size helps amortise.
Recurring contracts and investor appetite. A multi-year, indexed and renewed maintenance or operating contract offers visibility few construction trades provide. Hence the presence of infrastructure funds: Idex, owned by Antin since 2018, more than doubled its revenue to €1.9 billion in 2025, before a JP Morgan fund entered exclusive negotiations to take it over in August 2026. ⁷ Each change of shareholder relaunches external growth.
Multi-technical convergence. Property companies, manufacturers and social landlords prefer to entrust HVAC, electrical, plumbing and minor works to a single provider across several sites. Xerfi notes that size has become a decisive advantage on key account and multi-site contracts. ⁸ An isolated SME struggles to access these tenders; integrated into a group, it becomes the local technical building block. Geographic density works the same way: a buyer already present seeks to densify its network, an absent buyer seeks a bridgehead.

Who buys HVAC and energy services companies today

Large energy services and multi-technical groups. Subsidiaries of energy companies, construction groups or independent players, they complete their regional network, strengthen a specialty (industrial refrigeration, clean rooms, building automation) or acquire a contract base in an area where they have little presence.
Investor-backed networks and platforms. The most active model consists of federating regional SMEs around shared tools, with owners staying in place and becoming partners in the group. The Satep network is a recent illustration: 16 companies, 340 employees, 20 partner-managers, more than €55 million in revenue and five acquisitions announced in the second quarter of 2026 alone. ⁹ The SMEs acquired keep their brand and local roots.
Infrastructure and private equity funds. Attracted by the recurrence of operating contracts and decarbonisation, they invest in groups of significant size, as the Idex deal shows, or in regional platforms they grow through acquisitions before selling them in turn. ⁷
Multi-technical mid-caps and growing installers. Family electrical, plumbing or building services groups buy peers to cover a neighbouring region, add maintenance to a more cyclical works business, or win industrial or hospital clients.
Peers. Combining two SMEs in the same region remains the most common route to critical mass, with strong continuity for clients but more limited resources.

A building services company's capital can be freely transferred, with no professional order or approval linked to share ownership. A change of control must nonetheless be prepared: refrigerant handling certificate, qualifications and RGE energy renovation labels, technicians' certifications, ten-year and civil liability insurance, public contracts and framework agreements sometimes including clauses requiring approval of the new shareholder. None of these points blocks a sale, but each weighs on the timetable.

What this changes for the owner of an HVAC company

A full sale suits an owner who wants to step back, with a transition of six months to two years to hand over the client relationship and secure the transfer of contracts.
A partnership with reinvestment is for an owner, whatever their age, who still has several years of activity ahead. They sell a majority or minority of their shares to a group or platform, reinvest part of the price in the top holding and continue to develop their company with new resources, recruitment, tools, engineering office, multi-site tenders, sharing in the capital gain of the whole.
A combination between peers creates a regional multi-technical player and organises succession without an outside investor.
A capital reorganisation such as an OBO lets the founder monetise part of their shares and bring in an operations manager or key account manager, with bank debt or a minority investor.

Whatever the structure, buyers look at the quality of the contract portfolio and organisation before gross revenue. Here are the criteria that come up in every due diligence in the sector.

Share and quality of recurring revenue. The weight of maintenance and operations in activity, contract length, indexation and renewal rate are the first indicators requested, because they underpin the visibility of future revenue.
Margin by contract and site. The buyer wants to know which contracts make money, which need renegotiating, and how out-of-scope call-outs are billed.
Mix of maintenance, call-outs and works. The three activities have neither the same working capital needs nor the same risk profile. A solid works order book is an asset, provided it is readable and separate from recurring revenue.
Client concentration. A client representing too large a share of activity weakens the file; a base spread across tertiary, social housing, healthcare and industry negotiates better.
The technical team and its supervision. Qualifications, certifications, tenure, on-call duties, turnover, an operations manager and account managers able to carry the client relationship: an autonomous team is a value argument in its own right.
Energy engineering capability. Energy audits, controls, building automation, remote supervision, performance guarantees: an SME that can sell energy performance positions itself in the part of the market regulation is growing.
Compliance and tools. Refrigerant logs, traceability of interventions, an up-to-date maintenance management system (CMMS) and a controlled vehicle fleet show professional management and ease integration.

You are thinking of selling: is this the right moment for you?

This is the first question we ask, and the answer is not the same for everyone. The right moment is never automatically "right now", even in an active market. It depends on two things: you, meaning your life plans, personal horizon and wealth objectives, and your company, meaning its ability to realise today all the value it holds. We encounter two situations.

Your company is almost ready. The maintenance contract base is documented and loyal, margins are tracked by contract, the technician team is stable and supervised, or you hold a specialty, client base or location groups covet. Or you want your company to become part of a larger project, that of a large group, often under LBO, that brings the tools, expertise and resources to absorb the profession's regulatory and technical changes, which is reassuring for you and for your teams. A few weeks of preparation are then enough to go to market, and the number of buyers, higher than ever, works in your favour.
Your company needs time. One client represents too large a share of activity, several maintenance contracts are underpriced or expiring without visibility, margins were hit by a loss-making project or a wave of technician turnover, the switch to new refrigerants is unfinished. Selling remains possible, but it means accepting a discount. We will then tell you frankly that it is better to spend several months, sometimes a few years, working on these points, and we can support you through that phase before launching the transaction when you are truly ready.

The workstreams that make the difference are well known: build a detailed contract base, with term, indexation, expiry, margin and renewal history, separate maintenance, call-outs and works in the accounts, renegotiate loss-making contracts, update certificates and certifications, entrust part of the key accounts to account managers, and develop an energy performance offer. Depending on your starting point, these workstreams take a few weeks or a few years.

The benefit of talking early, even without being sure you want to sell, is precisely knowing which of these two situations you are in, and deciding with full knowledge rather than under the pressure of an unexpected approach.

Facing groups that complete several acquisitions a year with dedicated teams, an owner negotiating alone is rarely on an equal footing. The value of an HVAC company is not just maintenance revenue: it depends on the buyer's plan, the price structure, the portion conditional on keeping contracts, the share reinvested, the warranties, the future of the teams and your role after the deal. Two offers at the same headline price can mean very different things.

The role of an independent M&A adviser is to value the company objectively, identify all relevant buyers, put them in competition in a structured and confidential process, and negotiate terms beyond price alone. This competition protects the seller: it lets them compare genuinely different projects and choose the one that fits their objectives and their teams.

Frequently asked questions

Why do groups buy HVAC maintenance companies?

Because heating, ventilation and air conditioning maintenance combines multi-year recurring contracts, an installed base growing with heat pumps and air conditioning, lasting regulatory obligations such as the tertiary decree, the BACS decree and the F-Gas regulation, and a scarcity of qualified technicians. Buying a building services SME gives a group contracts, a certified team and a local presence in one go, which would take it years to build.

Can you sell your HVAC company and keep running it?

Yes, and it has become the most common structure with consolidation networks and platforms. A partnership lets the owner sell a majority or minority of their shares, reinvest part of the price in the group's holding and continue to develop the company with greater resources, often keeping their local brand. A full sale, with a transition of six months to two years, remains the solution for someone who wants to step back.

Who buys building services companies in France?

Large energy services and multi-technical groups, investor-backed regional SME networks that bring acquired owners in as partners, infrastructure and private equity funds attracted by the recurrence of operating contracts, family electrical or plumbing mid-caps adding maintenance to their works, and growing peers. Each category has a different plan for the company, hence the value of comparing them in the same process.

Does an HVAC company doing mainly works interest buyers?

Yes, especially if it has rare expertise, a loyal industrial or hospital client base, or a sought-after location. But buyers value the recurring share of activity more, because it gives visibility on future revenue. A works company therefore has every interest, before going to market, in developing and documenting its servicing and maintenance contracts, and in clearly separating the two activities in its accounts.

How long does it take to sell an HVAC maintenance company?

Generally six to nine months between launching the process and signing: preparing the file and contract base, confidentially approaching buyers, offers, technical, employment and financial due diligence, negotiation then completion. Formalities related to the change of control, certificates, qualifications, informing public and private clients, fit into this timetable. Upstream preparation takes from a few weeks to several years depending on the starting point.

Is an approval needed to buy a heating and air conditioning company?

No, a building services company's capital can be freely transferred and no rule reserves its ownership for professionals. The company must, however, keep its refrigerant handling certificate, professional qualifications and RGE labels, technicians' certifications and ten-year and civil liability insurance after the deal. Some public contracts and framework agreements also require informing or approving the new shareholder. These points are prepared upstream.

What does a buyer look at in an HVAC maintenance company?

The share of maintenance and operations in revenue, contract length, indexation and renewal rate, margin by contract and site, the mix of maintenance, call-outs and works, client concentration, the stability and qualifications of the technical team, supervisors able to carry the client relationship, the ability to sell energy performance, and the quality of the CMMS and regulatory logs.

Why put several buyers in competition to sell your HVAC company?

Because offers differ on much more than the headline price: cash portion, earn-out linked to keeping contracts, reinvestment in the group, warranties requested, the future of technicians and supervisors, the role left to the owner and keeping the local brand. A confidential process approaching national groups, platforms, regional mid-caps and funds in parallel allows these projects to be compared on a like-for-like basis and strengthens the seller's negotiating position.

Public sources consulted

FEDENE, Chiffres clés 2026 des services énergétiques (communiqué du 26 août 2026) : https://fedene.fr/ressource/chiffres-cles-2026-des-services-energetiques/ (good reliability)
FFB, Union des métiers du génie climatique, de la couverture et de la plomberie (UMGCCP), présentation et chiffres clés (consulté en octobre 2026) : https://www.ffbatiment.fr/umgccp (good reliability)
Institut international du froid, L'emploi dans le froid en France : un besoin croissant de remplacer les départs, d'après l'enquête du SNEFCCA (28 février 2025) : https://iifiir.org/en/news/refrigeration-employment-in-france-a-growing-need-to-replace-retiring-workers (good reliability)
Uniclima, Bilan 2025 et perspectives 2026 du génie climatique, communiqué de presse (5 février 2026) : https://fpa.fr/wp-content/uploads/2026/02/CP-Uniclima_bilan-2025-et-perspectives-2026_5-02-26-VF.pdf (good reliability)
CCI Paris Île-de-France, Décret BACS : pour des bâtiments tertiaires plus intelligents et plus économes en énergie (consulté en octobre 2026) : https://www.entreprises.cci-paris-idf.fr/web/transition-ecologique/decret-bacs-pour-des-batiments-tertiaires-plus-intelligents-et-plus-economes-en-energie (good reliability)
CAPEB, Fluides frigorigènes et attestation de capacité : les interdictions du règlement (UE) 2024/573 dit F-Gas (30 mars 2026) : https://www.capeb.fr/actualites/fluides-frigorigenes-attestation-de-capacite (good reliability)
Batiweb, Antin ouvre des négociations exclusives pour céder Idex à un fonds de JP Morgan (5 août 2026) : https://www.batiweb.com/actualites/acquisition/idex-antin-negociations-exclusives-cession-jp-morgan-49154 (good reliability)
Xerfi, Le marché du multitechnique et du multiservices voit grand, avis d'expert (23 mai 2025) : https://www.xerfi.com/blog/le-marche-du-multitechnique-et-du-multiservices-voit-grand_2243 (high reliability)
Batiweb, SATEP annonce cinq acquisitions et renforce son réseau CVC (22 juillet 2026) : https://www.batiweb.com/actualites/acquisition/satep-cinq-acquisitions-reseau-cvc-2026-49116 (good reliability)