Adlår Castra Reviews 

Good communication, so far excellent after sales service. Friendly and professional installers.

Day after installation of the heatpump boiler the boiler starts leaking. It took a couple of days before engineers solved the issue. Then after couple of weeks boiler had to be disconnected from the power socket due to short circuit issues. Already couple of days without hot water and not even an appointment for an engineer yet.

The people working for Adlar.

Everything went as been spoken, a good team, nice and friendly people.
I' m more than satisfied with the installation. I was stunned by the noise of the heat pump.
Thank you very much 👍👍👍👍👍👍🫲

Excellent experience with Adlar Castra. The installation of our heat pump was smooth, quick, and completely hassle-free. The installers were professional, efficient, and completed the work without disturbing us or needing anything from our side. The entire process, from placing the order and making the first payment to the final installation, was effortless and well-organised. The customer service team was also very supportive and responsive throughout. Overall, a very professional and positive experience. Highly recommended.

The technical installers were very good. To my opinion there were to much mails and telephon calls

Quick with answering questions. Very friendly and good service.

Customer oriented, helpful information upfront. 2 remarks for improvement; sales guy made statement that internal installation would fit in the same room as previous heating installation, however the mechanics needed more space. Also the mechanics left quite some rubbish after the job was done; they seemed to be in hurry to leave.

delivery in time
accurate installation

Agremends discussed in the contract conversation with the accountmanager where not discribed in the final installation plan. I received a general installation plan.
A lot of communication was nessecary to adress this.
Invoices ar e sent for more than 50% before any delivery. This was not part of the deal.
After instalation I should receive instructions. No instructions where given.
The heatpump would be perfectly by adjusted. The pump was out of control( continues full power) for 5 days before action was taken.
Information from the installation was sent to their office whitout written content.
Access to the app is denied with no vallid maintenance contract, allthough they agree that previous information stated, that access would be availible after paymend of the contract for the heatpump. No limitations mentioned, only extra extensions. (change of terms during contract).
Repaire of a failure of the display took allready more than 2 month. It is still broken.
During telephone conversations excuses, excuses, promises, but no real sulutions so far.

There were a few hickups, but all was done to set them right, and Adlar was always friendly and available on the phone when needed

Very professional company and high quality products
I bought a heat pump with boiler. I am very satisfied with Adlar Castra's work. They are very professional. In every step I was informed. When I had questions, I could reach someone very quickly over the phone and right afterwards I received an email with the ticket number of my issue/question. Their products are produced in the Netherlands and their prices are good, and products are good quality. Many thanks!

Fantastic heatpump, excellent services at all levels, administrative and technical. Thank you for your effective and efficient - and continuous services!!

From the initial sales conversation through the survey, planning, installation and now a week of using the system, Adlar Castra have been consistently reliable and easy to work with. Each stage was handled clearly and professionally. The sales team provided straightforward guidance, the survey felt thorough, and the pre‑install communication was organised and timely.

The installation team did a particularly good job. They were punctual, tidy, respectful of the house and took care to explain what they were doing as they went. The handover was clear and helpful. In the first month the team have been quick to respond to a couple of early questions while we get used to the system.

Overall, the process has been smooth and reassuring, and based on our experience, Adlar Castra have delivered a solid and dependable service.

We like the installation part, people who understand their job.
But explanation how the system will work and during start up what to expect was far below standard. No explanation what we can expect the first 24-48 hours.

The installation was messy due to incomplete delivery. Another installation crew had to return the next week (!) to finish the job. Communication was poor due to the language barrier (foreign technicians). I had to buy and install missing components myself (wall outlet, copper/flex appendages etc). Poor show.
After installation no explanation or booklets about operation of the system. According the technician ‘customer service’ will take that for that… Indeed , after inquiry you get the information you expect to see at acceptance of the system.
Conclusion: Adlar still has a lot to improve in order to meet customer expectation. Specifically the logistic and installation proces.

After succesfully installing the heatpump one year ago, I've asked Adlår Castra to replace the gas based water heater by a new 200 L electric water boiler.
Also this installation was done nicely and in time. Last minute modifications are looking very good.
As for the heat pump, the water boiler works fine as of day 1.

A definite 1 star for poor communications and lack of problem solving. I have multiple issues after installation of my Aurora 3 full electric unit.

Loud, installed in a wrong place, system using 30/40kwh of energy a day etc etc. Costing me hundreds of euros in energy bills. But nothing so far.

Got called the day after posting a 1 star review. Promises were made, I would be called back the day after of second day after. Nothing. Called back myself multiple time. “It’s being handled by this/that department” but I don’t see them handling anything so far. Meanwhile my house is loud, (hissing sound, like air and water running in the system), the outside unit is running like a GE90 Turbofan engine and most importantly my energy bill is skyrocketing, I’m saving on my gas bill because my energy bill is now higher than my old gas and electricity bills combined. But at least my house is warm.

Calling them means nothing, emailing them could help, but they don’t reply and just send out automated emails with links to their support site which is outdated, or a nonsense email stating a ticket was made, WhatsApp is AI or not even replying anymore.

@Adlar, are you calling me now?

Apparently this is the only way you return my calls. Not giving answers though. I have been waiting for answers ever since you came to install the thing on November 24th 2025. Let’s go and sort this out.

It took 3 times with 4 different group to install the system. 1) the first group has not enough practical experience, how to do something efficient, they did not had the proper equipment / tools. When the second group came, they had also not the right tools, and they closed the values of the floor heating so we had 4 days no heating. Because the second group was not capable the 3 group need to come for the electrical installation. These guys where good. The 4th group/person finished 2 weeks later the job. This guys was very practical and good, changed a lot under the CV what the first group did not logical. So 3 installation days: 11-10-2025 / 3-11-2025 & 13-11-2025