Air conditioning & heating
Air conditioning and heating in Castelldefels
We install air conditioning, aerothermal heat pumps, underfloor heating and radiator heating in homes, premises and businesses. We hold the fluorinated gas certificate and, because we are also electricians, we take care of the electrical side of the installation.
- Fluorinated gas certified
- Electrical work included
- Free, no-obligation quote
What we do
Systems we install
We help you choose the system that best suits your space and how you use it.
Air conditioning
Units for homes, premises and offices, with the refrigerant work carried out by certified staff.
Aerothermal heat pumps
Systems that use energy from the air to provide heating, cooling and hot water.
Underfloor heating
Water-based or electric: even warmth throughout the home, with no radiators on show.
Radiator heating
Installation of radiators and the manifolds that distribute the water to each circuit.
Electrical installation
Power supply and protection for each unit, without relying on another tradesperson.
Replacing units
We remove the old unit and install a new, more efficient one.
Before installing
What we consider when choosing the system
- The size, ceiling height and orientation of each room.
- How well the home or premises is insulated.
- Whether you want cooling, heating or both, and hot water too.
- Where the outdoor unit can go and what the residents’ community allows.
- Whether you are renovating: it is the best time for underfloor heating.
How we work
From your first message to the finished job
One team from start to finish and direct communication at all times.
- STEP 1
Tell us what you need
On WhatsApp or by phone. If you can, send us photos of the area.
- STEP 2
We take a look with you
We visit the space, explain the options and answer your questions.
- STEP 3
Quote and work
We send you a clear quote and, if you accept it, we get to work.
Frequently asked questions
Your most common questions about air conditioning and heating
Do you hold the fluorinated gas certificate?
Yes. Refrigerant gases are handled by certified staff, as the regulations require.
Which system suits me best?
It depends on the space, the insulation and how you use it. Air conditioning is usually enough to cool or heat a few rooms; if you want heating, cooling and hot water for the whole home, an aerothermal heat pump is a very complete option. We will assess it with you when we see the space.
What is an aerothermal heat pump?
It is a system that extracts energy from the outside air to produce heating, cooling and hot water, using less electricity than many conventional systems.
Can an aerothermal heat pump be combined with underfloor heating?
Yes, and it is one of the best combinations: underfloor heating works with low-temperature water, which is exactly where an aerothermal heat pump performs best.
Does underfloor heating require building work?
Yes, because the circuits go under the floor. That is why it is best installed as part of a renovation.
What size of air conditioner do I need?
It depends on the size, orientation, insulation and use of each room. We calculate it when we see the space, so it is neither too small nor oversized.
Which areas do you cover?
We work in Castelldefels, Gavà, Viladecans, Sitges, Baix Llobregat, Garraf and Barcelona. If your project is somewhere else, just ask us, with no obligation.
Want to improve the climate in your home or business?
Tell us what you need and we will prepare a free, no-obligation quote. We work from Castelldefels across Barcelona and the surrounding area.
+34 616 079 814instalacions@marin57.cat