A new-build home in Spain is increasingly being fitted with underfloor heating. It provides comfort, an even temperature and a luxurious look.
Nevertheless, there are many questions about underfloor heating in combination with different types of flooring.
What works well? What doesn't? And what should you pay attention to in a new-build home on the Costa Blanca?
In this article, we explain it clearly.
What types of underfloor heating are there?
In Spain, we mainly encounter two systems:
1. Water-based underfloor heating
This system works via pipes carrying hot water in the floor.
Advantages:
- energy-efficient when used correctly
- even heat distribution
- suitable for entire homes
2. Electric underfloor heating
Works via electric cables or mats.
Advantages:
- quick heating
- ideal for bathrooms
- easier to install
For entire homes, water-based systems are usually chosen.
Which flooring works best with underfloor heating?
Not every floor works equally well with underfloor heating.
Good choices:
PVC (dryback) / LVT
- excellent heat conductivity
- comfortable
- stable during temperature changes
Tiles
- conduct heat well
- but feel harder and colder without heating
Less suitable:
Solid wood
- can expand and contract
- sensitive to temperature differences
Thick carpets
- insulate against heat
- reduce efficiency
Underfloor heating in new builds: where does it often go wrong?
In practice, we regularly see the same mistakes:
- flooring being chosen without taking the system into account
- underfloor heating being started up too quickly
- not taking the construction and drying times into account
- the wrong adhesive or materials being used
This can lead to:
- cracks
- flooring coming loose
- poor heat distribution
The start-up protocol: crucial but often forgotten
After installation, underfloor heating should be started up gradually.
This means:
- gradually increase the temperature
- allow for the subfloor's drying times
- prevent stress in the floor
This is often underestimated, but it is essential for a good result.
Levelling and underfloor heating
With new builds, people often assume that the floor is immediately suitable.
In practice, levelling is often necessary, especially with PVC flooring.
A level subfloor provides:
- better heat distribution
- a neater final result
- lower risk of problems
Also read our article about
👉 levelling in a new-build home in Spain
for more information.
When should you arrange underfloor heating and flooring?
Timing is everything.
A good order is:
- underfloor heating installation
- drying and starting up
- leveling (if necessary)
- installing the floor
Working too quickly = problems later.
Underfloor heating in new-build homes on the Costa Blanca
In the Costa Blanca, we are seeing a clear trend:
More and more new-build homes are being equipped with underfloor heating, often in combination with PVC flooring.
This combination offers:
- comfort
- energy efficiency
- a modern look
Advice on underfloor heating and flooring
Not sure which floor works best with underfloor heating in your home?
In our showroom in Altea, we will be happy to advise you on the right combination of underfloor heating and flooring.
We guide you through the entire process: from selection to installation.
Port of Altea operates throughout the Costa Blanca, including:
Altea, Albir, Benidorm, Calpe, Moraira, Jávea, Denia, and Alicante.
Related articles
- New-build home on the Costa Blanca: what should you consider for flooring and finishing?
- Do you need to level the floor in a new-build home in Spain?
- How much does a new floor cost in Spain?
How do you apply this to your own home?
For underfloor heating in new-build homes in Spain: what does and does not work? The situation in the home is always decisive. Take photos in daylight, record the measurements, and document what is currently on the floor or in front of the window. Also describe who uses the space, how often the home is occupied, and which problems you specifically want to solve. This turns general advice into a practical plan.
Do not compare materials based on appearance alone. Ask about the technical composition, maintenance, expected lifespan, and preparation required. A lower-priced product may ultimately be more expensive if the groundwork has not been included or the chosen design is not suitable for everyday use.
Practical checklist before ordering
- Check the subfloor, window construction, or installation location instead of relying only on general measurements.
- View actual samples in the light of the room and at different times of day.
- Record the color, design, direction, operation, and finish in writing.
- Ask which work and materials are included in the price exactly.
- Schedule other tradespeople in the right order so that new work is not immediately damaged.
Common mistake: pushing for one solution too early
An online example can be inspiring, but it says nothing about your subfloor, dimensions, sun exposure, or use. Therefore, start with the function and technical requirements. Only then choose the final color and appearance. This prevents compromises during installation and makes quotes easier to compare.
At Port of Altea, we combine product advice with measuring and professional installation. This means that choices are not made separately from the installation, and details such as skirting boards, profiles, seams, pack height, or door clearance can be checked in advance.
More information and advice on the Costa Blanca
Read more about flooring on the Costa Blanca, PVC flooring, carpet, and vinyl. For personal advice, you are welcome to visit our showroom in La Nucía. Bring photos, a floor plan, and approximate measurements, or contact us to arrange an appointment.
Details that are often underestimated with underfloor heating in new-build homes in Spain: what works and what does not?
Pay particular attention to the connection between the material, subfloor, and finish. In a quotation, such details are less noticeable than the name of a collection, but during everyday use they determine whether the result is truly convincing. Therefore, ask for an explanation of every layer and finish being proposed.
In addition, a technically sound floor can still look visually unsettled if the direction, skirting boards, and transitions have not been determined in advance. When products can be installed in different ways, the supplier should explain why one option is preferable for your home. An unsupported choice is not advice but a gamble accompanied by an attractive sample.
Assessing before the final order
A practical check is simple: view the plan from adjacent rooms; interruptions and unusual starting lines are most noticeable there. Combine this with photos of the room, the direction in which doors open, and information about underfloor heating or intense sunlight. This brings aesthetic and technical choices together.
Finally, establish who will move the furniture, how the subfloor will be left, where materials can be stored temporarily, and when the room may be used again. Good planning prevents damage and rushed work during the final stages.
A complete handover
After installation, check not only the main surface but also edges, skirting boards, profiles, seams, and connections. Ask what maintenance is permitted from day one. Port of Altea remains involved throughout the process, from the initial material selection to the practical explanation after completion.
More about flooring on the Costa Blanca
Learn more about choosing, preparing, and professionally installing flooring in Spain: