Heating installation in Barcelona — Solutions for every home
At JAG Alcaide we have been installing heating systems in Barcelona since 1953. We work with all currently available technologies — gas boilers, underfloor heating, wall-mounted gas heaters and aerothermal systems — and advise you on the best option for your home, consumption and budget.
We are official Junkers Bosch installers and all our technicians hold a Category A gas licence issued by the Departament d’Empresa i Coneixement of the Generalitat de Catalunya.
When it comes to warming up your house, local or office you can find different solutions in order to answer your energy efficiency requests and savings. In order to do that, in JAG Alcaide you’ll find the right people that will give you the best advices so you can find the solution that fits your particular circumstances the most. If you put your trust on us you’ll also find a team of experts that has been installing heating systems for more than 40 years.
Heating installations will be designed taking into account both technical criteria and your feedback regarding the operational temperature you want to have in your home or the location of radiators for aesthetic reasons. We will always discuss with the client the pros / cons of the various locations raised, always reasoning with technical arguments in order to agree on which the best solution is.
Our heating installations are always made with quality materials (all pipes are copper, no plastic), and we will hide the pipes as much as we can, so they remain almost unseen. Also, if the customer wishes, we can offer other types of design radiators in order to make the heating installations look more attractive.
Our installations always follow the guidelines set by the Regulation of Thermal Installations (RITE RD2013) and so do our calculations, which result from the values set by the heating power regulation. We will also calculate the required heating power room by room, never by doing a uniform calculation for all room. Aspects such as the inner walls / Outdoor walls, the housing position within the building, the geographical orientation of the building rooms will always be taken into account (which rooms are north etc.).
Also, in case you want to make a new heating system installation where it never existed before, we will give you an advice regarding which one is the boiler that better suits the characteristics of your home. Not only will we consider the square footage of the flat, but also the heating output of the radiators that need to be installed, and the demand for HSW (hot sanitary water) that the flat requires.
In the following tabs you can see the main options we offer you.
Which heating system is right for your home in Barcelona?
| System | Best for | Installation cost | Running cost |
|---|---|---|---|
| Gas boiler | The most common option. Properties with an existing gas supply or minor refurbishment. | €1,600–2,700 | Medium |
| Underfloor heating | New builds or full renovations. Maximum comfort and efficiency combined with aerothermal or condensing boiler. | €50–80/m² | Low |
| Wall-mounted gas heaters | Flats without central heating or individual rooms. No building work, quick installation. | €400–700/unit | Medium |
| Aerothermal heat pump | Renovations or new builds. Replaces boiler + A/C + DHW in a single unit. Grants available. | €6,000–14,000 (with grant: -40%) | Very low |
| Electric thermal emitters | Properties without gas supply or where building work is not possible. Independent room-by-room solution. | €200–500/unit | Medium-high |
Not sure which option is right for your situation? Call us on 932 185 847 or request a free technical visit and we will advise you with no obligation.
The main options that we offer you
At JAG Alcaide we have been official approved Junkers-Bosch installers in Barcelona since 1953 — over 73 years working with this brand because it consistently delivers the best results. This means we know every model inside out, we can anticipate problems, and we offer real, specific advice rather than generic recommendations.
We install condensing boilers for all types of property: flats with a single bathroom, large homes with high hot water demand, urgent replacements and new builds. Before recommending any model, a technician assesses your current installation, the number of radiators, bathrooms and typical usage. The aim is to match you with the right output — not oversell capacity you do not need.
As an official Junkers Bosch service centre, we manage warranties directly with the manufacturer and have immediate access to original parts and replacements.
Wall-mounted gas heaters are the ideal solution when you want heating in one or more rooms without installing a central boiler or carrying out major building work. Each heater operates independently, allowing you to run only the rooms in use and set the temperature room by room.
We install them in flats with no central heating, commercial premises, rooms added to an existing property, or as a supplement in cold areas of the home. The installation only requires a gas supply point and a flue outlet to the exterior.
We work with Kromschroeder and Fondital, two manufacturers with a long track record in the Spanish market. During the preliminary visit we assess the space and available gas flow rate to ensure the chosen model performs correctly from day one.
Underfloor heating is the most efficient domestic heating system available. It heats from the floor upwards, distributing warmth evenly throughout the room with no draughts and no cold spots. It operates at lower water temperatures than conventional radiators, making it particularly well suited to condensing boilers and aerothermal heat pumps.
We install it in new builds and full renovations where the floor is being lifted. It is not a viable option in finished properties without building work, but whenever structural work is planned it is the system we consistently recommend for long-term performance.
The installation is calculated room by room, taking into account the orientation of the property, exterior walls and the intended use of each space. All pipework is copper and the layout is designed around the floor finishes planned by the client.
Electric thermal emitters are the solution for properties or commercial spaces without a gas supply, where building work is not possible, or where independent heating is needed in a specific area without connecting it to the central system.
They work by storing heat during off-peak electricity tariff hours (usually overnight) and releasing it gradually throughout the day. Current models allow hourly programming and ambient temperature control, which significantly improves efficiency compared to older generations.
We install them in both residential and commercial properties. Since no gas installation or building work is required, installation time is minimal and the impact on the property is virtually zero.
Any heating or hot water installation running on gas requires the supply line and internal pipework to be fully compliant: correct pressure, approved materials, accessible shut-off valves and a valid legalisation certificate.
At JAG Alcaide we carry out new gas installations, modifications to existing systems and official legalisation procedures. All our technicians hold a Category A gas installer licence — the highest qualification available in Spain — which authorises us to work on any type of installation regardless of pressure or complexity.
Whether you are replacing a boiler, carrying out a renovation or simply need a technician to inspect and certify your gas installation, we also handle all necessary paperwork with the distribution company when required.
Our heating services in Barcelona
This is the entry page to everything we do in heating. Each service has its own page with prices, process and frequently asked questions:
- Gas boiler installation: boiler replacement at a fixed price with installation included, from €1,600. Junkers-Bosch and Vaillant, gas certificate and removal of the old boiler.
- Junkers-Bosch boilers: GC1200W, Condens 4300i and Condens 6000 ranges; we are official approved installers.
- Vaillant boilers: ecoTEC Intro range, the compact class A alternative.
- Underfloor heating: for new builds or full renovations, compatible with condensing boilers and heat pumps.
- Wall-mounted gas heaters: Kromschroeder and Fondital, for homes without central heating.
- Electric thermal emitters: Junkers Elaflu range, no gas and no building work.
- Aerothermal heat pumps: heating, cooling and hot water in a single unit, with grants of up to 40%.
- Gas installations: new connections, certificates, risers and repairs with category A gas certification.
- Technical service and boiler maintenance contracts from €100 a year.
Why choose JAG Alcaide for your heating
We are an installation company from Gràcia with more than 73 years of history and our own team: the technicians who carry out the visit are the same ones who install and who will come back for the annual service. We do not work with commission-based salespeople. All our installers hold the Generalitat de Catalunya’s category A gas certification, we are official approved Junkers-Bosch and Vaillant installers, and we give you a fixed written quote before starting. We know Barcelona’s buildings (old risers, light wells, facade flues in Eixample and Gràcia blocks) because we have been working in them for decades.
Frequently asked questions
Gas boiler or heat pump?
If you already have gas and radiators, a condensing boiler is the fastest and most economical option (from €1,600 installed). A heat pump pays off in full renovations, new builds or homes with underfloor heating, and with the current grants. We compare them in natural gas vs air source heat pump in Barcelona.
When is it worth replacing the heating?
When the boiler is more than 15 years old, breaks down every winter or consumption has shot up. There are grants for replacing a boiler in Barcelona that are worth checking before you decide; we explain them at the visit and on the boiler installation page.
Do you do the complete installation or just the boiler?
Everything: boiler, radiators or underfloor heating, pipework, gas installation, certificate and start-up. If building work is involved, we also coordinate masonry and finishes as part of our integral renovations.
Areas we cover
We serve the whole of Barcelona from our base in Gràcia (c/ Torrent de l’Olla 129): Gràcia, Eixample, Sant Martí, Sarrià-Sant Gervasi, Horta-Guinardó, Les Corts, Sants-Montjuïc, Sant Andreu, Nou Barris and Ciutat Vella. We also work across the metropolitan area: L’Hospitalet de Llobregat, Badalona, Santa Coloma de Gramenet, Sant Adrià de Besòs, Cornellà, Esplugues, Sant Cugat del Vallès, El Prat, Gavà, Viladecans and Castelldefels.
Useful guides
Boilers and water heaters we install
- Bosch C6000 W: the most complete condensing range, from 25 to 36 kW.
- Bosch C4300i W: compact condensing boiler with app control.
- Bosch GC1200W: the most affordable option.
- Vaillant ecoTEC Intro.
- Bosch gas water heaters.
- See all boilers: the price includes installation and removal of the old unit.
Our other services in Barcelona
Shall we put together a quote for you?
Tell us what you need and we will call you back. Free and with no obligation: if the job calls for it, we visit first at no charge in Barcelona and its metropolitan area.