In short:
- To replace a gas boiler with a heat pump in France, the usual solution is an air-to-water heat pump, connected to the existing radiators. The project always starts with a technical visit, which is required for grants.
- Installation included, installers publish ranges of 7,000 to 13,000 euros (Proxiserve) and 9,219 to 21,468 euros including VAT depending on the model (IZI by EDF).
- In 2026, MaPrimeRénov’ pays 3,000 to 5,000 euros for an air-to-water heat pump, the energy savings premium comes on top, and VAT is 5.5%, provided an RGE-certified professional does the work.
- Five national networks publish an offer: Effy, ENGIE, IZI by EDF, Murfy and Proxiserve, with different models, from simple introductions to fully managed projects.
Replacing a gas boiler with a heat pump usually means fitting an air-to-water heat pump that takes over the central heating circuit and hot water, and opens the door to public grants. Yet the project is more than swapping one appliance for another. Sizing, radiators, the position of the outdoor unit and the grant paperwork make the difference, and the installer carries them. This guide covers the points to check before going ahead and what five national installers publish.
Installers replacing gas boilers with heat pumps in 2026
The table shows what each provider publishes on its website as of 2 November 2026, for an air-to-water heat pump replacing a boiler, in alphabetical order. It is not a ranking.
| Provider | Installation model | Visit and quote | Published price, installation included | Grants | Ideal for |
|---|---|---|---|---|---|
| Effy | RGE installer from its network, over 5,000 partners | Technical visit, heat pump sized then approved by Effy | Market benchmark of €10,000 to €18,000 | Energy savings premium deducted from the quote, paperwork handled | A turnkey project, boiler removal included |
| ENGIE | Introduction to a qualified installer | Free, no-commitment quote | Benchmark of €90 to €130 per m² | ENGIE premium up to €5,300 for a 100 m² house | Getting an installer’s quote and a supplier premium |
| IZI by EDF | Local RGE-qualified professional | Quote drawn up after a technical visit | From €9,219 to €21,468 incl. VAT depending on the model | Up to €10,800 of grants deducted from the quote | Choosing a heat pump model from a catalogue |
| Murfy | Installation, connection and commissioning handled | Free technical visit, two costed proposals | On quotation | Grant paperwork and town hall declaration handled | A project followed through to the first service, offered |
| Proxiserve | Installers from the Mon Chauffagiste Privé network, 120 branches | Free, no-commitment technical visit | From €7,000 to €13,000 | Grant simulation, CEE through a participating supplier | A local branch and a one-year installation guarantee |
Three models coexist. ENGIE introduces customers to an installer. Effy and IZI by EDF coordinate the project and hand it to a partner professional, with grants deducted from the quote. Murfy and Proxiserve manage the project from the visit to commissioning. The right choice depends on how much support you want and how the grants are handled.
Replacing a gas boiler with a heat pump: does it suit your home?
An air-to-water heat pump draws heat from the outdoor air and transfers it to the water circuit of the central heating. It replaces the boiler for heating and, depending on the model, for domestic hot water. Three points decide whether the project succeeds.
The existing radiators
An air-to-water heat pump connects to the existing radiators and underfloor heating. Cast iron or steel radiators can often be kept, depending on the setup. It all depends on the water temperature they need to heat the home: underfloor heating or large radiators work with lukewarm water, while small radiators sized for a boiler need hotter water. A room-by-room heat loss calculation settles it.
The home’s insulation
A heat pump is sized on heating needs. A well-insulated home needs less output, so a cheaper unit and radiators that heat with cooler water. Before signing, loft insulation is often the first measure worth looking at.
The position of the outdoor unit
The outdoor unit sits on the ground, on a base, or on the wall. It must stay accessible for servicing and away from neighbours’ windows because of noise, and depending on the town, it may require a prior declaration at the town hall. In a flat, the project usually goes through the co-ownership.
What about a hybrid heat pump?
A hybrid heat pump combines a heat pump with a small boiler that takes over in very cold weather. It suits homes where the radiators need very hot water. Its funding has changed: according to the MaPrimeRénov’ page on service-public.fr, since 1 September 2026 a gas or oil hybrid heat pump can no longer be funded under MaPrimeRénov’ Rénovation d’ampleur, and that scheme is refused if gas heating is kept in a house.
Prices and grants to replace a gas boiler with a heat pump in 2026
What installers publish
| Published benchmark | Amount | Source |
|---|---|---|
| Air-to-water heat pump supplied and fitted, depending on the model | €9,219 to €21,468 incl. VAT | IZI by EDF |
| Installation range for an air-to-water heat pump | €7,000 to €13,000 | Proxiserve |
| Market benchmark for an air-to-water heat pump | €10,000 to €18,000 | Effy |
| Price per square metre, installation included | €90 to €130 per m² | ENGIE |
These ranges vary with output, whether hot water production is built in, and the connection work. Only the quote drawn up after the technical visit is binding.
MaPrimeRénov’ per measure
« Pour bénéficier de la prime, vos travaux doivent être réalisés par un professionnel reconnu garant de l’environnement (RGE). » (To receive the grant, your work must be carried out by an RGE-certified professional.) Service-public.fr, MaPrimeRénov’ page, version of 1 September 2026
For an air-to-water heat pump, MaPrimeRénov’ per measure pays in 2026:
| Income profile | Grant | Eligible spending |
|---|---|---|
| Very low-income households | €5,000 | Up to €12,000 |
| Low-income households | €4,000 | Up to €12,000 |
| Middle-income households | €3,000 | Up to €12,000 |
These amounts appear on the MaPrimeRénov’ page of service-public.fr. The professional must carry out a prior site visit, whose date appears on the quote and on the invoice.
The energy savings premium and 5.5% VAT
The energy savings premium (CEE), including the Coup de pouce chauffage, is paid by energy suppliers and comes on top of MaPrimeRénov’. How it works is explained in the article on the French energy savings certificate. Energy renovation work, including fitting a heat pump, benefits from a reduced VAT rate of 5.5%. The qualification required of the installer is explained in the article on the French RGE label.
What each national installer offers
The five providers below publish an offer to replace a boiler with an air-to-water heat pump, as of 2 November 2026. They are listed in alphabetical order.
Effy: an integrated package including boiler removal
Effy supports households with energy renovation and relies on a network of more than 5,000 partner installers. Its integrated heat pump package, run with Octopus Energy, targets the replacement of a gas or oil boiler in a house, for low and very low-income households. The heat pump is sized for the home and then approved by Effy, and installation is entrusted to an RGE installer from the network. The package includes removal of the existing boiler (excluding the tank), an energy savings premium deducted from the quote and help with the paperwork. For three years, a plan at 19 euros a month adds one service a year and unlimited repairs.
ENGIE: an introduction to a qualified installer
ENGIE offers to put households in touch with a qualified installer to fit an air-to-water heat pump, with a free quote, at no cost and no commitment. The energy supplier publishes a price benchmark of 90 to 130 euros per square metre, installation included, and an ENGIE premium under the CEE scheme, up to 5,300 euros for a 100 m² house, which customers apply for in their online account. Its FAQ states that high-temperature radiators can be kept depending on the setup and that a hybrid solution can be considered. Servicing then continues with Savelys, a group company.
IZI by EDF: a heat pump catalogue and grants deducted
IZI by EDF publishes a catalogue of air-to-water heat pumps, supplied and fitted, from 9,219 to 21,468 euros including VAT depending on the model. The quote is drawn up after a technical visit, and installation is carried out by a local RGE-qualified professional; in the ADEME RGE directory, the company IZI by EDF has 50 establishments with the QualiPAC heat pump installation qualification. Grants, up to 10,800 euros when combining EDF’s Coup de pouce and MaPrimeRénov’, are deducted directly from the quote. Commissioning is done by a technical station approved by the manufacturer, and in the first year, labour and call-out are covered in case of a breakdown. The offer covers mainland France, excluding Corsica, subject to geographical coverage.
Murfy: a project followed from the visit to the first service
Murfy, known for appliance repair, also offers heating installation. Its replacement process is published in five steps:
- Free technical visit: an expert assesses on site the technical options, heating and hot water needs and the target energy performance.
- Two proposals: the customer receives two solutions, each with a detailed quote.
- Paperwork handled: Murfy takes care of the grant applications and any declaration at the town hall.
- Installation and commissioning: connection, settings and full commissioning, followed by an explanation of how to use the equipment.
- First service offered: the unit starts with a service included, and help comes quickly in case of a breakdown.
The company Murfy Energies, part of the Murfy group, is listed in the ADEME RGE directory with Qualit’EnR’s QualiPAC heat pump installation qualification, valid until 20 July 2027. After the free first service, servicing an air-to-water heat pump is priced at 195 euros including VAT, as detailed in the guide to finding a professional to service a heat pump. Requests are made online, and the service area is confirmed at that stage.
Proxiserve: a free visit and a network of branches
Proxiserve, a specialist in heating servicing and replacement, reports 120 branches and 2,500 technicians in France. For an air-to-water heat pump, the technical visit is free and without commitment, and the website publishes an installation range of 7,000 to 13,000 euros. Proxiserve states that a split air-to-water heat pump replaces a gas boiler, with cast iron or sheet steel radiators, and also offers quotes for a hybrid heat pump. Installation is guaranteed for one year from the signing of the handover report, on top of the manufacturer’s warranty. In the ADEME RGE directory, the company has 24 establishments with the Qualibat heat pump installation qualification.
The steps of replacing a gas boiler with a heat pump
- Technical visit: the installer measures heating needs, checks the radiators and chooses where the outdoor unit goes. The date of this visit must appear on the quote for grants.
- Detailed quote: output in kW, unit reference, hot water production, connection, removal of the old boiler and commissioning.
- Grant application before signing: MaPrimeRénov’ and the energy savings premium are applied for before the work is committed.
- Paperwork: prior declaration at the town hall if the town requires it, co-ownership approval in a flat.
- Works: removal of the boiler, fitting of the outdoor unit and indoor module, connection to the heating circuit, commissioning.
- Follow-up: the heat pump must be serviced at least every two years. If no appliance runs on gas any more, the gas contract can be cancelled.
Practical tips before signing a quote
- Check the qualification in the France Rénov’ RGE professionals directory: the entry shows the exact qualification and its end date, which must cover the date of the work.
- Insist on a site visit before any quote: without it, the heat pump cannot be sized, and the grants are lost.
- Ask whether removal of the old boiler is included, and what happens to the appliance.
- Ask for the planned water temperature for your radiators and the chosen output.
- Compare at least two quotes on the same specification, which some installers make easier by sending two proposals.
- Be careful with door-to-door or phone selling: a reputable professional gives you time to compare and does not ask you to sign the same day.
To compare heating companies on their qualifications, the ranking of the most recommended heating companies in France complements this guide.