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... See more
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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 ha... See more
Company replied
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... See more
Company replied
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... See more
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Company details
Written by the company
Adlår Castra is dé specialist in warmtepompen. Een full-service provider. Ontwerp, assemblage, advies, verkoop, installatie en onderhoud van Adlår warmtepompen door heel Nederland. Geïnspireerd door de Zweedse en Scandinavische waarden van kwaliteit, prachtig ontwerp, duurzaamheid en uiteraard (het behouden van) de fantastische natuur. De rode draad die door Adlår loopt: aantrekkelijke warmtepompen aanbieden voor een echt eerlijke prijs! Ons eigen Adlår-installatieteam draagt zorg voor vakkundige installatie en onderhoud. Tenslotte moet jouw nieuwe warmtepomp het 'gewoon' altijd doen!
Contact info
Energieweg 20, 8071DA, Nunspeet, Netherlands
- 038 200 1766
- www.adlar.com
3.8
Great
1K reviews
Replied to 99% of negative reviews
Typically replies within 1 week
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Installation was not complete
Installation was not complete, they simply forgot to send part of the equipment and their installers didn't event care and installed it half working.
It's almost impossible to reach the customer support. They never answer emails. I tried creating tickets in their system, but they also never even check it. It took me a lot of time to reach them by phone and schedule another installation date.
There was supposed to be a commissioning appointment where they should tune the system and explain in details how it works, but they simply skipped the step and marked it "done". I am trying to reach them to get meldcodes and apply for a subsidy, but they never answer and cannot reach them by phone.
The equipment looks ok, kinda working, I think, but now I'm left with half working system and cannot do anything and cannot get my subsidy.
UPD: The company responded only after posting my review here and sent me meldcodes, but the code for the heatpump boiler is different from what I had in my offerte. So, it's either they installed me a different boiler from what I paid for, or they put the wrong code in their offerte to fake a bigger subsidy for their equipment. I tried to contact the support and ask about it, sent 3 emails but again, it was left unanswered.
11 August 2025
Reply from Adlår Castra
Hi Aleksei,
Thank you for sharing your experience. We understand that the subsidy is important to you. Because the application is personal, we cannot do this for you. We have already sent you the correct codes by email so you can apply yourself.
We are glad the heat pump is now fully running. If you still have questions or need support, please let us know, we are happy to help.
Nathan - Adlår Castra
the new installed pump was not working
unfortunate was that the new installed pump showed a serious problem. Adar had to come back twice before things were repaired.
19 August 2025
Reply from Adlår Castra
Hi Nico,
Thank you for sharing your experience. We’re very sorry that your new pump showed a serious problem right after installation — that should not have happened. We regret that it took two visits to get everything repaired, but we’re glad the system is now working as it should.
We appreciate your patience and will use your feedback to improve our installation checks, so future customers won’t face the same inconvenience.
Nathan - Adlår Castra
Installing newest Adler heat pump 6kw. Nice mechanica who placet the equipment…
Nice mechanica who placet the equipment fast and without problem. Not clear was the offer from the beginning . First received the installation plan and later after calling the proposal. Some details were lacking in the installation plan. Also the manual of the heat pump was difficult to find online and was sent to me only after emailing for it. The controller of the heat pump is so new that even the electrician does not know how it works. Via the received manual had to find out how it works. Not easy still learning without any instructions. The heat pump boiler is so new that it is difficult to get subsidy, because ka number not know at RVO. Still working on this😓. In short the equipment seems good but the service around it is minimal.
12 August 2025
Reply from Adlår Castra
Hi Han,
Thank you for your feedback. We’re glad the installation went smoothly and that our mechanics did a good job. We’re sorry for the confusion with the offer, installation plan, and manuals.
Subsidy for the boiler can be applied for via RVO. We take your comments seriously to improve our service and would be happy to contact you directly to go over any questions about the system.
Nathan - Adlår Castra
Satisfied
Great machine, great offer, great timeline, great service.
Points for improvement: Scheduling of appointments not clear and the response time on queries takes very long.
4 August 2025
Reply from Adlår Castra
Hi,
Thank you for your feedback! We’re glad to hear you’re happy with the machine, offer, timeline, and service. We appreciate your notes on appointment scheduling and response times and will work on improving these areas.
Warm regards,
Manon - Team Adlår Castra
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29 July 2025
Reply from Adlår Castra
Hi Cornelis,
Bedankt voor de beoordeling. Ik heb geprobeerd om met je in contact te komen omdat ik je beoordeling niet helemaal begrijp.
Ik zal snel nogmaals contact met je proberen op te nemen om je ervaring bespreekbaar te maken.
Nathan - Adlår Castra
Great company and assistance
From the first interview till the moment the heatpump was installed ive met friendly and honest people working for Adlar.
Even the online helpdesk that i called when i wanted more info was frienly and very helpfull .Adlar deserves more than the 5 stars in can award them here👏
30 July 2025
Reply from Adlår Castra
HI,
Thank you for your kind words and wonderful feedback!
We're thrilled to hear that you had such a positive experience with everyone you interacted with, from the first interview to the installation, and even with our helpdesk.
It means a lot to us that you felt well helped and genuinely supported throughout the process. Your appreciation truly motivates our team. Thank you again for the 5 stars!
Warm regards,
Manon - Team Adlår
The installation was perfect
The installation was perfect, with two technicians working neatly, cleaning up all the mess, and taking the packaging back with them.
The aftercare was poor; there was no explanation or instructions on how to use it.
I contacted them several times but received no response.
It's not cold outside yet, but I'm curious to see how it will work in the coming months.
28 July 2025
Reply from Adlår Castra
Hi Ed,
Thank you for your feedback and for sharing your experience.
We’re glad to hear that the installation was neat and professional. However, we’re sorry that the explanation and aftercare did not meet your expectations and that you did not receive a response to your inquiries. This is certainly not the service we aim to provide. We will be reaching out to you soon to provide the necessary explanations and answer any questions you may have. We take this seriously and are working to improve our communication and aftercare.
Warm regards,
Manon - Team Adlår Castra
They did half of the job
I bought a heat pump from Adlar, which came with a free air conditioner, and I purchased a second one. Only one air conditioner was delivered, and none were installed. The installation team that came for the heat pump told me another team would handle the ACs and that I would be contacted to schedule the installation.
Some days go went by and nobody ever contacted me. I called 6–7 times, and every time I was told "we'll call you back today or tomorrow" because the person responsible wasn't there. At one point I even asked, "So only one person in the company can make appointments?" and the response was "Yes. I can’t help you."
That person never called back, and I later found out he was on vacation for a week.
It’s now August, and I’ve been waiting since May to get these air conditioners installed. I bought them to use during the summer, and at this rate I might finally have them working when I no longer need them.
Very disappointed. Poor planning, zero accountability, and unprofessional service. I do not recommend.
Update: it's 22 August.
scheduled the installation on 21 August , someone came and he said he's missing something and it's a planning problem. They didn't thought about that the ac has to be put on the roof so they didn't plan for a platform also some basic things. Not I have to wait again for another month probably.
Maybe I'll have ac next year.
Run as much as you can from them because they are a new company and there's only ONE GUY that installs the ACs ( they don't afford more people)
5 August 2025
Unprompted review
Reply from Adlår Castra
Hallo Florin,
Thank you for sharing your experience. We fully understand your disappointment, you've been waiting a long time for the installation of your airco, you've reached out multiple times, and unfortunately, you never received proper follow-up. That’s not how it should go, and we apologize.
We’d like to resolve this for you as soon as possible. Based on the information we have, we will be reaching out to you shortly to schedule your air conditioner installation and make things right.
Nathan - Adlår Castra
I have still unsolved issues waiting…
I have still unsolved issues waiting more than a month. You can not find someone to answer after payment
13 June 2025
Reply from Adlår Castra
Hey Onur
Thanks for your review. According to our information, your heat pump has been up and running and the reported issues were resolved on June 24th.
If you're still experiencing problems, we'd really like to help. We’ll reach out to clarify the situation and offer support where needed.
Nathan - Adlår Castra
Slovak Team 8 was really good and quite…
Slovak Team 8 was really good and quite supportive in installing and testing the new heat pump.
27 June 2025
Unprompted review
Reply from Adlår Castra
Hi Sreejit,
Thank you for your kind words! We're happy to hear that Slovak Team 8 provided you with such good and supportive service during the installation and testing of your new heat pump. We'll make sure to pass your compliments on to them.
Enjoy your new system and don't hesitate to reach out if you need anything.
Nathan - Adlår Castra
Reply from Adlår Castra
Hey Maertens,
Bedankt voor het achterlaten van je beoordeling. Ik heb geprobeerd telefonisch contact met je op te nemen om je ervaring verder te bespreken, maar dat is helaas nog niet gelukt.
We horen graag waar we ons kunnen verbeteren of hoe we je verder kunnen helpen. Je kunt ons altijd bereiken via 038-2001766 of via adlar.nl/contact.
Nathan - Adlår Castra
The product looks great but only time…
The product looks great but only time will prove that. The planning and work preparation was poor. It was necessary for Adlar to visit 4 times to finalise the installation. Their ways of communication was also 19th century. Only via WhatsApp or via telephone and wait 20 minutes to get an answer.
23 May 2025
Reply from Adlår Castra
Hi Nick,
Thank you for your feedback. We're pleased to hear that you're happy with the look of the product. However, we regret that the planning and communication didn’t meet your expectations. We acknowledge that multiple visits were required to complete your installation and understand how frustrating that must have been.
We’re working hard to improve our planning processes and customer communication. If you have any remaining questions or experience issues in the future, don’t hesitate to reach out. We’re here to help.
Nathan - Adlår Castra
Fast response and a extra explicit…
Fast response and a extra explicit explanation what the installation of the heat pump will be in and outside the house. And a remarkable solution for the power connection namely over our roof instead inside the house.
13 May 2025
Reply from Adlår Castra
Hey Robert,
Bedankt voor je positieve feedback! Fijn om te horen dat onze snelle reactie en de duidelijke uitleg over de installatie van de warmtepomp binnen en buiten het huis werden gewaardeerd.
Ook blij dat je tevreden bent met de bijzondere oplossing voor de stroomaansluiting via het dak in plaats van binnen.
We wensen je veel comfort met je nieuwe warmtepomp!
Nathan - Adlår Castra
5 stars for the heat pump, 3 for communication
The installation of our hybrid heat pump went without problems. But we got an unpleasant surprise when the company servicing our gas boiler (Feenstra) told us that they would cancel our service contract, as they refuse serving a system that is connected to one from a different company. Bad luck that our gas boiler broke down 2 weeks after the installation of the heat pump. We had thus no one to turn to, and we did not want to buy a new gas boiler, but when we asked Adlar to propose a non-gas based solution for warm water, we never got a reply, in spite of several reminders. Therefore, we were forced to go to a different company, and now we have two complete separate systems for heating and warm water, which is clearly sub-optimal. In terms of responsiveness and communication they could do better!
7 March 2025
Reply from Adlår Castra
Hi Koeth,
Thank you for sharing your experience and for your kind words about the installation of your hybrid heat pump, great to hear that part went smoothly.
We’re very sorry to hear about the complications that followed, particularly with your gas boiler service contract being cancelled. This is unfortunately a situation we encounter more often, and we understand how frustrating it must have been, especially when you were left without hot water.
It’s clear that we’ve fallen short in responding adequately to your request for a non-gas solution. That delay in communication is not what you should expect from us, and we sincerely apologize for the inconvenience this caused.
Thank you again for your honest feedback, it helps us improve.
Nathan – Adlår Castra
It is worth the wait
It took 5 months between order and delivery but the installation team did a good job.
13 May 2025
Reply from Adlår Castra
Hey Roelf,
Thank you for your patience and for taking the time to share your experience.
We're glad to hear the installation team delivered quality work in the end. If there's anything else we can do to support you, don't hesitate to reach out.
Enjoy your new system!
Nathan - Adlår Castra
Everything went as planned
Everything went as planned, installing it with nice people with knowledge.
Aftersales appointments also done as agreed.
18 April 2025
Reply from Adlår Castra
Hi Han,
Thank you so much for your review! Great to hear that everything went according to plan and that you were happy with both the installation team and the aftersales support. We truly appreciate your kind words!
Warm regards,
Manon – Team Adlår Castra
Everything went well and fast too
2 April 2025
Reply from Adlår Castra
Hi,
Thank you for your review!
We're happy to hear that everything went smoothly — and quickly too!
If there's anything you need in the future, we're always here to help.
Manon - Team Adlår Castra
Reply from Adlår Castra
Hi Christiaan,
Thank you so much for your review!
We're thrilled to hear you found our service professional and friendly. Your recommendation means a lot to us!
If you ever need assistance again, we're here to help!
Manon - Team Adlår Castra
Adlar Castra installation
The installation went smoothly. The electricians and installers were on time and finished the job on time. They left with the system working. They took all the rubbish with them. The next day received a telephone call from Adlar with the confirmation that everything works fine. I am only waiting for the compatibility of the Toon thermostat with this system. They promised to look into that and let me know if this is possible.
28 March 2025
Reply from Adlår Castra
HI Jan,
Thank you for your review!
Great to hear that the installation went smoothly and that everything was completed on time and left clean and working. We’re glad our follow-up call was well received. Regarding the compatibility with the Toon thermostat, we’ll make sure to follow up as promised.
If there’s anything else in the meantime, feel free to reach out!
Manon - Team Adlår Castra
Team Slovakia 7& 6 are the best!
17 April 2025
Unprompted review
Reply from Adlår Castra
Hi,
Thanks for your review and the kind words about Team Slovakia 6 & 7 – we’ll gladly pass it on to them! Great to hear you’re happy.
If you have any further feedback or questions, feel free to reach out.
Manon - Team Adlår Castra
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