What DAUPHINE GAZ does

Dauphiné Gaz is a family-owned plumbing and HVAC service provider founded in 1975 and headquartered at 42 Avenue Abel Rossignol, Saint-Jean-de-Moirans, France. The firm installs, maintains, and repairs heating systems (air-source and geothermal heat pumps, gas condensing boilers), air conditioning, plumbing, and water treatment/softening equipment for residential and commercial customers across the Voironnais and Grenoblois basins in the Auvergne-Rhône-Alpes region. It holds multiple RGE and industry certifications (Qualipac, Qualibat, Eco Artisan, PMG, Professionnel Gaz, Maintenance Gaz, Synasav, Manipulation du froid) that grant access to French government energy-efficiency subsidy programs and serve as a regulatory moat.

The business operates with approximately 8 employees on a direct-to-consumer field-service model, reaching customers via phone, email, its website (dauphinegaz.fr), and Reservio online booking. It runs quote-based, pay-as-you-go pricing with no public rate cards, and revenue is generated through three streams: one-time installation services (labor plus equipment), recurring maintenance contracts, and hardware sales (notably water softeners carrying a 10-year warranty). The firm maintains brand partnerships with seven major HVAC manufacturers (Viessmann, Ariston, Hitachi, Frisquet, Softbox, Drageau, Atlantic) and maintains dedicated online presence for 11 cities in its service area. Dauphiné Gaz is privately held with no external funding, no disclosed revenue, no M&A activity, and no AI/ML or proprietary technology stack beyond standard scheduling and web tooling.

Name

DAUPHINE GAZ

Legal name

Dauphiné Gaz

Website

https://dauphinegaz.fr

Company type

Private

Founded year

1975

Operating status

Operating

Headcount range

1–10 employees

Short description

Dauphiné Gaz is a family-owned French plumbing and HVAC service provider, founded in 1975, serving residential and commercial customers across 11 cities in the Voironnais and Grenoblois regions with installation, maintenance, and 24/7 repair services.

Ownership category

akta.pro rank

Product category

Plumbing and Heating Services

akta.pro primary industry

Boiler & Hydronic Heating System Installation (HSAOAGAF)

akta.pro secondary industry

Boiler & Hydronic Heating Repair & Service (HSAOAHAG)

Keywords

• Plumbing services
• Heating installation
• HVAC services
• Heat pump installation
• Water treatment systems

Headquarters

HQ city

ST JEAN DE MOIRANS

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Marketing or Sales, Infrastructure

Revenue model

1. Installation Services: One-time installation of plumbing, heating, air conditioning, and water treatment systems. Revenue generated from labor and equipment installation for residential and commercial customers.
2. Maintenance and Repair Services: Ongoing maintenance contracts and repair services for installed equipment including boilers, heat pumps, air conditioning, and plumbing systems.
3. Equipment Sales: Sales of water softeners, heat pumps, air conditioning units, and related equipment as part of installation services.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Dauphiné Gaz is a family-owned plumbing and heating company providing installation, maintenance, and repair services for heating systems (heat pumps, gas condensing boilers), air conditioning, plumbing, and water treatment solutions (softeners, filtration). The company serves residential and commercial customers through certified field technicians across the Voironnais and Grenoblois regions in France.

Product overview

DAUPHINE GAZ is a family-owned heating and plumbing company with 49 years of experience offering a comprehensive suite of HVAC and plumbing services. The company provides heat pumps (air-source and geothermal), air conditioning, gas condensing boilers, water treatment systems, water softeners, plumbing services, and 24/7 emergency repair. Services are delivered through certified technicians (RGE Qualipac, Qualibat, Eco Artisan) across the Voironnais and Grenoblois regions.

Differentiator

Problem solved

Functional benefit

Products and services

• Pompe à chaleur (Heat Pump) Heat pump systems including air-source (air-air and air-water) and geothermal variants for residential and commercial heating and cooling. RGE Qualipac certified installations.
• Climatisation (Air Conditioning) Installation, repair, and maintenance of air conditioning systems including monobloc, split, reversible, and mobile units for residential and commercial properties.
• Chaudière condensation (Condensing Boiler) Gas condensing boilers for efficient residential heating, available from brands including Viessmann, Saunier Duval, Vaillant, and De Dietrich. Includes high-efficiency models with connected heating solutions.
• Traitement de l'eau (Water Treatment) Water treatment services including filtration, disinfection, demineralization, remineralization, and pH regulation for potable water quality for residential and commercial properties.
• Plomberie (Plumbing) Full-service plumbing including pipe installation, leak repair, pipe unclogging, tap replacement, and drainage system work for residential and commercial properties.
• Adoucisseur (Water Softener) Water softening devices that reduce water hardness by removing calcium and magnesium ions, with 10-year warranty and no maintenance required. Addresses limescale buildup in plumbing and appliances.
• Dépannage (Emergency Repair) 24/7 emergency repair services for plumbing and heating systems including gas leak detection, boiler repair, and urgent interventions.
• Maintenance Services Preventive and corrective maintenance services for heating, plumbing, and gas installations with customized maintenance contracts.

Quantifiable outcome

• Water softeners come with 10-year warranty and are maintenance-free

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Seven partnerships are on record, tiered not specified.

• Viessmannnot specifiedTechnology or IntegrationOfficial Viessmann partner for heating equipment including gas condensing boilers and heat pumps. Viessmann is a leading manufacturer of heating systems.
• Aristonnot specifiedTechnology or IntegrationAriston brand partner for water heaters and heating solutions. Ariston is an international manufacturer of domestic appliances.
• Hitachinot specifiedTechnology or IntegrationHitachi partner for climate control and air conditioning solutions.
• Frisquetnot specifiedTechnology or IntegrationFrisquet brand partner for premium heating solutions including condensing boilers and heating controls.
• Softboxnot specifiedTechnology or IntegrationPartner for thermal insulation solutions and accessories.
• Drageaunot specifiedTechnology or IntegrationPartner for water treatment and conditioning solutions.
• Atlanticnot specifiedTechnology or IntegrationAtlantic brand partner for water heaters, heating, and air conditioning solutions.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• ENGIE Home Services: National French HVAC and home services provider offering heating, cooling, plumbing, and maintenance. Comparable to Dauphiné Gaz in service mix but operates at national scale with hundreds of technicians and standardized processes.
• SPIE: European leader in multi-technical building services including HVAC, plumbing, and electrical. Comparable to Dauphiné Gaz's service portfolio but serving a much broader commercial and residential customer base across multiple European countries.
• Proxiserve: French multi-technical building services company (part of ENGIE group) providing heating, plumbing, and energy services to residential and commercial customers. Directly overlaps Dauphiné Gaz's heating and plumbing maintenance offerings, but at greater scale.
• Cegelec (Vinci Energies): French electrical and HVAC engineering and services firm, part of Vinci Energies. Comparable to Dauphiné Gaz in HVAC and building technical services but at substantially larger scale and broader geographic footprint.
• EDF Solutions Énergétiques: EDF's residential and commercial energy services arm, including heating, insulation, and HVAC services. Comparable to Dauphiné Gaz's residential heating and energy-efficiency offering, but backed by the EDF group's national footprint and brand.
• Axima (Equans / ENGIE): French HVAC and refrigeration services provider (part of Equans/ENGIE group). Comparable to Dauphiné Gaz in cooling and heating installation/maintenance offerings, but at enterprise scale serving commercial and industrial clients.

Direct peers

• Les Bons Artisans: French marketplace that connects customers with local certified artisans for plumbing, heating, and electrical work. Comparable to Dauphiné Gaz as a direct channel for local heating/plumbing service demand, though it operates as a multi-artiisan platform rather than a single local firm.
• MonChauffagiste.fr: French online platform for connecting customers with local heating specialists for installation and maintenance. Comparable to Dauphiné Gaz as a consumer-facing channel for heating services, though operating as a multi-installer network rather than a single local firm.
• MesPlombiers.com: French online plumbing services directory and booking platform. Comparable to Dauphiné Gaz's plumbing service offering and direct-to-consumer lead generation, though it operates as a multi-provider platform rather than a single installation/maintenance firm.

Emerging players

• Hello Watt: French energy services platform helping households with energy work, including heating, insulation, and renewable installations. Comparable to Dauphiné Gaz in residential HVAC and energy-efficiency focus, but with a digital-first, multi-vendor model.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/dauphine-gaz

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about DAUPHINE GAZ