Our commitment to our customers leads us to maintain, beyond the installation of our products, a long-term relationship born of our dedication to service.
At J.A.G. ALCAIDE, S.L. we have offered, since our beginnings more than 73 years ago, a comprehensive service in the field of air conditioning and heating. We provide the technical service for your boiler or water heater to ensure it works at its best throughout its service life, as well as periodic inspections of gas, water, electricity and heating installations so that you can be safe and keep all your installations running in optimal condition.
Maintenance contracts
Boiler repairs
Boiler service and maintenance in Barcelona
One of the main areas of activity at JAG ALCAIDE is after-sales care, channelled through our boiler technical service in Barcelona.
Its purpose is to guarantee our customers a technical support service able to deal with any problem that may arise with the boiler, carry out its annual maintenance and advise the customer on anything they need.
Boiler technical service in Barcelona
To deliver this service we have a network of professionals across the whole of Barcelona, organised and continuously trained to offer the best boiler maintenance service in Barcelona.
For any requirement and for every type of gas boiler, domestic hot water heater, electric water heater, solar thermal system or underfloor heating, for routine and one-off work alike, boiler maintenance in Barcelona is one of the pillars this company is built on.
Why should boilers in Barcelona have regular maintenance inspections?
Keeping the unit in good condition and carrying out regular maintenance inspections not only guarantees safety in the home, it also promotes energy savings and reduces emissions of harmful gases that damage the atmosphere.
Should an accident occur, responsibility lies with the owner or occupant of the home where the boiler is installed, or with the building administrator in the case of centralised systems.
They are the ones responsible for keeping the mandatory maintenance certificates up to date, for making sure the compulsory gas inspections are carried out every five years, and they are ultimately the ones held liable if an accident occurs and the documents mentioned above are not in order.
J.A.G. ALCAIDE S.L., as an installation and maintenance company holding all the licences required for its work, provides its customers with a boiler maintenance service and undertakes to carry it out with fully qualified, expert and trained staff who know the whole range of boilers, with the aim of doing an effective job and giving every customer an excellent service.
Boiler maintenance is an essential task that every user of this type of appliance should carry out regularly.
Preventive boiler maintenance once a year is what is always recommended: as well as guaranteeing people’s safety, it extends the life of the boiler, improves its efficiency and prevents or delays possible breakdowns.
In short, to get the most out of your gas installation and achieve its optimal performance, a perfect initial installation is needed first, which is why qualified workers with years of experience are essential; but no less important is using the boiler properly and keeping it and the whole installation in good condition, since that is how we obtain a high degree of comfort and get the machine working at its full potential.
What does the boiler maintenance service include?
First of all, the regular boiler maintenance service of our Barcelona technical service includes a thorough cleaning of the inside of the boiler, dismantling the parts the technician considers necessary, which as a rule includes the burner assembly, the thermocouple, the ionisation probe and any other parts that, because of their condition, may need attention.
This operation should be carried out annually.
Although ideally it is done during the season when the heating is off, if you have a maintenance contract with a company such as J.A.G. ALCAIDE S.L., the company takes care of providing the service at the right time, so the customer does not have to worry about it at all.
At J.A.G. ALCAIDE we also give customers, on request, the option of choosing the date on which they want the annual maintenance of their gas appliance to be carried out.
If a fault is detected in any part of the boiler, the maintenance contract covers both the labour and the call-out needed to replace it, so that the customer only has to pay for the price of the spare parts.
In that case, the procedure is as follows:
Before any work is done, the customer is informed of the price of the spare part and we wait for them to approve the quote.
Once we have the go-ahead, the part is ordered and replaced as quickly as possible.
Another task carried out during the annual maintenance inspection of the gas appliance is a combustion test with a calibrated TESTO analyser, which gives the exact values for the boiler’s combustion, carbon monoxide in the room, efficiency, and so on.
This inspection is compulsory at every service, and at the end the user is given a combustion printout confirming that the machine is working correctly and that all values are below the limits set by the industry authorities.
This inspection is carried out by companies holding the necessary accreditations, authorised by the Ministry of Industry and with calibration certificates for all the equipment used.
Depending on where the boiler is installed and its heat output, the inspection is compulsory every year, every two years or every four years for domestic boilers.
Who can carry out boiler maintenance inspections in Barcelona?
Maintenance and annual inspections can be carried out by professionals registered with the chamber of commerce who hold the required certification and licences. Our Barcelona boiler technical service belongs to this group and holds all the necessary accreditations.
These regulations are a guarantee for the public.
On completion, the qualified professional must sign a technical inspection report, the results of which must be kept with the owner’s installation documents. At the end of the inspection the user is also given the mandatory maintenance certificate required by the RITE regulations (Royal Decree 238/2013).
In addition, every gas installation must pass a compulsory inspection every five years, which is always carried out by the gas distribution company (in Catalonia, Gas Natural Distribución); no other installation or maintenance company can carry it out.
Boiler documentation.
This is all the documentation the user should keep in relation to the boiler.
It includes the boiler invoice, to prove the installation date; the commissioning document with all the boiler’s details; the maintenance contract signed with a maintenance company; the maintenance certificates confirming the boiler has passed its due inspections; and the combustion printouts showing it is in good condition.
The boiler should also carry a sticker recording the inspections it has passed.
Boiler repairs in Barcelona
Many of the major boiler brands supply their distributors with original spare parts for the various components of the boiler, to be used for replacements in the event of breakage or malfunction.
As well as having original spare parts, our professionals also receive specific training in the different boiler brands and models, so they can give the customer the best possible service.
Our area of operation generally covers the whole of Barcelona, and we also travel to the surrounding area when needed, at the same price, with no extra call-out charge.
J.A.G. ALCAIDE is a company with a long track record and experience in the sector, thanks to the professionalism and commitment to the customer of everyone who represents it.
Based on one of the principles that guides our company philosophy, customer focus, our aim is always to resolve every need each customer has: from prior information and advice, through installation, certification and maintenance of any equipment, to repairs.
How do the repair technicians of our Barcelona boiler service work?
In order to offer a complete boiler assistance service, we guarantee knowledge of the technical specifications of every boiler brand, of how each model of those brands works, and an experience that gives us an extremely low error rate when diagnosing what is wrong with the appliance.
These qualities are what allow us to offer a boiler repair service in Barcelona with every guarantee of success.
When the company receives a request for assistance, the following procedure is followed:
- We ask for the exact model of the appliance and its age.
- We ask for details of the fault or anomaly the boiler is showing.
- We check whether the appliance is covered by an annual maintenance contract and/or whether the company has already carried out other repairs on it.
- We inform the customer of the service to be provided, guaranteeing the use of original parts and qualified staff.
- We arrange an immediate appointment at the customer’s home.
- The job is passed to the technician with all the details provided by the customer. All our technicians have manuals and fault codes for every boiler model, in addition to their experience.
- The technician inspects and checks the causes of the fault, makes a technical diagnosis and prepares a quote, which is presented to the customer.
- If the quote is accepted, the boiler repair begins and, once finished, the boiler’s operation is checked until we are sure it is working perfectly.
- The invoice is presented, which serves as the guarantee, and the customer is given a printout from a calibrated TESTO analyser confirming that the boiler is working correctly.
Care and advice to avoid boiler breakdowns in Barcelona.
Like any machine or appliance, boilers wear out and break down through use and operation, but also through improper use. Using them correctly not only avoids breakdowns, it also brings significant energy savings, lower polluting emissions and greater comfort.
Our Barcelona boiler service offers you some useful tips below for saving energy on heating and hot water:
- Keep the temperature just right: every degree less saves up to 6% in heating costs. During the day a room temperature of around 20 °C is ideal, and at night it is best to switch the boiler off or keep the temperature at 16 °C.
- Radiator surfaces should not be covered by furniture or fabrics such as curtains or clothes hung to dry. The radiator radiates heat into the room, and that radiation is blocked if we cover it.
- Insulating the heating and hot-water pipes can be a good way of preventing heat loss.
- Make sure doors and windows are airtight, avoiding heat loss through gaps and poorly fitting frames. Close the blinds at night, and in the morning ten minutes of ventilation is enough.
These measures bring direct savings in energy, and therefore in money on your bill, but they also reduce the boiler’s excessive running time, so breakdowns take longer to appear.
It is also very important to have the unit serviced once a year.
To do this, the expert professionals of J.A.G. ALCAIDE’s Barcelona boiler service will come to your home to clean the various parts of the boiler properly and make sure all the components are in perfect condition.
The company schedules this visit if a maintenance contract has been signed, so the customer can relax and forget about it.
The importance of choosing the right boiler
When installing a domestic boiler in a customer’s home it is essential to know the differences between the various models in order to guarantee the right choice.
Not every boiler is suitable for every location.
- First we must assess the exact spot where the boiler will be installed: an outdoor location is not the same as a covered one, and there are models designed and built for each situation.
- The output in kW is a fundamental figure and must match the size and characteristics of the home where it will be installed.
- Choosing the right fuel is another basic point, since obviously the boiler has to be used with the fuel it was designed for.
- Correct positioning and installation by qualified professionals is very important for the boiler to work well and to avoid early breakdowns. If it is a wall-hung boiler, the wall must be smooth and free of protrusions, it must be fitted with a strong, stable bracket, and it must never be placed on skirting boards or on the floor.
- Fitting a thermostat at a point in the home free of draughts and sudden temperature changes is essential for day-to-day comfort: that way we get a stable, pleasant room temperature without having to think about it. There are very sophisticated thermostats with options that can make life more comfortable.
In short, boiler repairs will be minimal and few and far between if the boiler is looked after and the advice on good use is followed. And J.A.G. ALCAIDE, S.L. is always at its customers’ disposal for boiler service in Barcelona.
For more information, we are always available on 93 218 58 47.
Most common boiler faults — Do you recognise your problem?
If your fault is not in the table or you are not sure, call us on 932 185 847 and we will advise you before sending a technician.
| Symptom | Most likely cause | Can you fix it yourself? |
|---|---|---|
| Boiler won’t start | Low pressure, ignition failure or thermostat off | Sometimes (see checks below) |
| Constantly losing pressure | Micro-leak in the circuit or faulty expansion vessel | No — technician required |
| Hot water but no heating | Stuck three-way valve | No — technician required |
| Strange noises (banging, whistling) | Limescale build-up in the heat exchanger | No — professional cleaning required |
| Starts then shuts off | Faulty temperature sensor or overheating | No — diagnosis required |
| Error code on display | Depends on code and brand | Check manual or call us |
| Smell of gas | Possible gas leak in the installation | Call Gas Natural and ventilate immediately |
How much does a boiler repair cost?
It is difficult to give an exact price without seeing the appliance, but these are the typical ranges for the most common repairs:
| Type of repair | Approximate cost (labour + callout) |
|---|---|
| Diagnosis + basic checks | €60–80 |
| Pressure recharge + leak check | €80–120 |
| Three-way valve replacement | €120–180 + part |
| Heat exchanger cleaning | €100–150 |
| Temperature sensor or thermostat replacement | €90–140 + part |
| Circuit board replacement | €150–250 + part |
Spare parts are quoted separately once the fault has been diagnosed. We always confirm the cost before starting any work.
Tip: if you have a maintenance contract with us, labour and callout costs for all breakdowns are already included. Find out about our maintenance contracts.
At JAG Alcaide we offer a boiler and heater repair service, as well as technical assistance for any type of breakdown in your gas or electricity installation. To guarantee a more efficient service in the repair of your boiler, it would be advisable that before calling our technical assistance service you carry out the following checks:
In the event that after carrying out these checks the fault persists, contact us through the assistance request that we attach below or by calling 932 185 847 and we will send you an expert as soon as possible.
Technical assistance form
Frequently asked questions about boiler repair
Do you repair all boiler brands? Yes. We work with all major brands. We are an official Junkers Bosch service centre, but we also repair Vaillant, Baxi, Ariston, Ferroli, Fagor and others without any problem.
Do you offer an emergency service? Out-of-hours emergency service is available during the winter period (October to April) for clients with a maintenance contract. For other clients, we attend as quickly as possible during working hours (Monday to Friday, 8am to 6pm).
Do you provide a quote before carrying out repairs? Always. The technician diagnoses the fault and confirms the estimated cost before starting any work. If you decide not to proceed, only the diagnostic visit is charged.
What happens if the repair requires a part that is not in stock? We will inform you of the delivery time and, where possible, keep the boiler running with a temporary fix while the part arrives.
Is it worth repairing or better to replace the boiler? It depends on the age of the boiler and the type of fault. As a general rule, if the boiler is less than 12–15 years old and the repair does not exceed 40% of the cost of a new one, it is worth repairing. We will advise you during the visit with no obligation.
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.