Frequently Asked Questions

Energy Saving Certificates (CAE) are a government program that promotes energy efficiency in homes . Thanks to this system, improvements that help reduce consumption—such as thermal insulation—can be fully funded, with the customer only investing €1.21. At Isolaria we manage the entire process for you: we certify the energy savings generated by your home and convert them into bonuses that cover the cost of the installation . This way, you can insulate your home for just €1.21 , with no paperwork and no hidden costs. A national program that rewards efficiency and allows you to enjoy a more comfortable, efficient, and sustainable home.

Just fill out the form or call us . We take care of everything: we analyze your home, confirm your eligibility, and schedule your installation at a time that suits you . It's that easy to start making your home warmer and more efficient.

Yes, it really is that affordable. Thanks to the Energy Saving Certificate (CAE) system, the total installation cost is almost entirely covered , so you only pay €1.21 for the complete insulation service. There are no additional costs, fees, or late payments. At Isolaria, we believe in total transparency : the price quoted is the only price you will pay. No fine print, no surprises, and the guarantee of a process 100% managed by our technical team.

We only request your ID to verify ownership of the property and to be able to correctly process your file through the CAE system . It is a legal requirement of the program, necessary to issue the energy savings certificate associated with your installation. Your data is completely protected: Isolaria complies with data protection regulations (GDPR) and uses this information exclusively for the management of your file , never for commercial or third-party purposes.

The projects are funded through the national Energy Saving Certificates (CAE) system . This program channels funds to promote energy efficiency in Spanish homes , rewarding improvements that reduce consumption and CO₂ emissions. At Isolaria we manage those funds for you: we certify the savings generated by your new insulation and convert it into financial aid that covers practically the total cost of the project . Thus, you only contribute €1.21, and the rest is financed through the official incentives of the CAE program.

The Energy Savings Certificate (EAC) transfer agreement is a legal requirement of the program. Through this document, you authorize Isolaria to manage the certificates generated by the energy savings in your home. The signing of this transfer takes place only after having signed a prior contract , in which the final price of the service (€1.21) and all the conditions of the project are clearly specified . Thanks to this transfer, we can apply the benefit of the CAE system directly to your installation and cover almost the entire cost , without any upfront payments or additional charges. It does not involve any extra commitment nor does it affect the ownership of your home. It is simply the necessary administrative step to formalize the energy aid and guarantee you a transparent , safe and surprise-free process.

Isolaria is a company specializing in thermal insulation and energy efficiency , with a certified technical team that guarantees quality and safety in every project. We work under the official framework of the Energy Saving Certificates (CAE) system and comply with all the legal and technical requirements established by this program. Each installation includes: • 📋 A documented energy diagnosis , • 🧱 Certified high-quality materials , • 🕒 Fast and verified installations , • 🧾 And a full performance guarantee . Our commitment is simple: to offer a transparent, safe and efficient service, so that you can enjoy a more efficient home with complete peace of mind.

Installing insulation is quick, clean, and hassle-free . In most cases, the job is completed in about 3 hours , and never exceeds 4 hours, even in larger homes. There is no need to leave your home or carry out complicated works: our technical team performs the installation by accessing through a trapdoor or through small access points in the attic or false ceiling. In just one morning, your home will be completely insulated, ready to enjoy greater thermal comfort and more efficient energy consumption.

Yes, you'll notice the difference from day one. After installation, your home will maintain a more comfortable temperature : warmer in winter and cooler in summer, without needing to run the heating or air conditioning for as long. Many of our customers highlight an immediate feeling of comfort , a more stable temperature, and a visible reduction in their energy bill during the following months. Insulating your home not only improves daily well-being , but also allows you to save energy and live in a more efficient and quieter home .

No, Isolaria takes care of absolutely the entire administrative process . We take care of the technical management, the necessary documentation and the processing of Energy Saving Certificates (CAE) so that you don't have to worry about anything. You only need to sign the basic documentation that authorizes the management of the project, and we take care of the rest: diagnosis, installation, certification and delivery of final reports. You enjoy the result —a warmer and more efficient home— while our team takes care of all the technical and administrative aspects.

At Isolaria we exclusively use fiberglass wool and blanket , materials that guarantee maximum thermal efficiency, durability and safety . These insulations offer excellent performance in both winter and summer, reduce heat loss and help maintain a stable indoor temperature throughout the year. Our choice is not accidental: we work only with certified, sustainable materials that are compatible with the Energy Saving Certificates (CAE) system , ensuring optimal results in every installation. This way, you have the peace of mind of receiving effective, safe, and high-quality insulation, without having to worry about which material to choose.

No. The insulation we install at Isolaria is designed to maintain its effectiveness for decades without the need for maintenance . Fiberglass wool and blankets retain their thermal properties over time, do not degrade, do not compact, and are resistant to moisture and mold. Once installed, the system is completely sealed and protected, guaranteeing stable and long-lasting performance without you having to perform any additional maintenance or care. It's a long-term investment: a single installation, years of comfort and savings.

Because in Spain there is a great opportunity to improve the energy efficiency of homes , especially those built before 2005, which often have insufficient or non-existent insulation. The Energy Saving Certificates (CAE) system allows for direct aid to be applied for these improvements in an accessible and transparent way, and at Isolaria we want Spanish families to be able to benefit as much as possible from this program. Our commitment is to contribute to a more efficient housing stock, reduce energy consumption and improve the comfort of thousands of homes across the country.

No. The Energy Saving Certificates (CAE) system does not affect your taxes or your income tax return at all . This is a state-regulated energy efficiency scheme whereby energy companies finance part of the improvements in Spanish homes. You simply benefit from the savings generated, without receiving or declaring any financial assistance . In short: there are no tax implications, nor any additional obligations. Just a more efficient, comfortable home with lower energy consumption.

In most cases, yes. The insulation we install at Isolaria is compatible with most single-family homes built before 2005 , especially those with an attic or false ceiling . Before carrying out the installation, our technical team performs a free diagnostic to verify the type of structure, the existing materials and the feasibility of the project. If your home meets the necessary conditions, you can benefit from the program for just €1.21 , without any construction or complications. Each home is assessed individually to ensure an effective, safe, and lasting result.

Yes. Before installation, it is necessary to completely empty the attic or loft , as the insulation is applied using sprayed fiberglass wool . This material forms a continuous layer that covers the entire surface, so the space should not be reused for storage once the work is finished. Any subsequent weight or handling could compact the wool and reduce its thermal efficiency . In this way, we guarantee that the insulation maintains its maximum performance for decades, ensuring a more efficient, warm and quiet home.

Of course! At Isolaria, we are delighted when our clients share their experience and recommend isolation to others who may also benefit from the program. If a friend or neighbor is interested, they can simply contact us or fill out the form on the website , indicating that they learned about the service through your recommendation. Each new insulated home contributes to a more efficient, sustainable, and comfortable environment for everyone.

Isolaria's technical team handles post-installation follow-up directly. Once the work is completed, we carry out a thorough inspection to ensure the insulation meets quality standards and the requirements of the Energy Saving Certificate (CAE) system. In addition, our customer service department is available to answer any questions or queries related to your project or the final documentation. Our commitment does not end with the installation: we accompany each client until the entire process is fully verified and certified.

We are Isolaria , a company specializing in thermal insulation and energy efficiency for homes . Our purpose is simple: to help families live in more comfortable, sustainable homes with lower energy consumption . We take care of the entire process, from the initial diagnosis to the installation and complete management of the Energy Saving Certificates (EAC) system, so that insulating your home is easy, fast and accessible. We believe in a future where every home is more efficient and every family can enjoy well-being without wasting energy.

Our main office is in Madrid, but we operate throughout Spain through our network of installers