Kaiser Nachhaltig heizen GmbH

Everything from the first contact to the completion of the order is characterized by friendliness, transparency, commitment, reliability and, above all, a healthy understanding of sustainability.

Good advice. Professional planning of construction work with scheduler for customers. Before start you know all the dates, who works when in the house on which substeps.
Good and fast service for questions/problems.

From quotation to implementation consistently positive. We can recommend the company Kaiser-nachhaltig heizen 100%. We had a complete hybrid heating system installed: solar thermal, new gas boiler, buffer tank, fresh water station and drinking water treatment. Whether boss, construction management or installers: everything went smoothly and impressively reliable and clean.

Very dedicated and competent planning and implementation by the professionals!

Very professional work.

We became aware of Kaiser-nachhaltig heizen via Instagram/Facebook. The entire communication, whether phone calls or personal meetings on site were always punctual and highly professional adhered to or carried out.
The offer came very promptly.
All applications for subsidies were submitted by Kaiser.
And we were particularly impressed that a fixed price was promised despite waiting times due to delivery.
We can highly recommend the young and innovative team of Kaiser sustainable heating.
D. and T. Ellinger Schwäbisch Gmünd

We decided to replace our old oil heating system with a modern pellet heating system by the company Kaiser - nachhaltig heizen because we were convinced by both the offer and the very constructive consultation. The implementation of the project was very transparent for us, as we had received a detailed project plan in advance. During the conversion, the employees were always open to questions and explained the new system to us in detail. Any problems that arose were solved as quickly as possible and in a professional manner. We are very satisfied with the result of the replacement, the new plant makes a very high-quality and tidy impression. We expressly recommend the company Kaiser - sustainable heating!

I am a property manager and have to deal with many tradesmen due to my job. I did not know company Kaiser, but company Kaiser was the only company in the present time (May 2022) that wanted to help me at all. And also could but how ! Due to traffic, I was about 15 minutes late for the appointment. In this time the competent and friendly employee had already recognized the presumed problem and also solved it after a short time. And the price / performance ratio is right in any case! Many thanks to company Kaiser - to the whole team, the company is absolutely recommendable. The service and friendliness but also the know-how is unfortunately not always given in today's time, at company Kaiser in any case !

I was advised by Mr. Kaiser himself. Through his professional, reliable and friendly manner, I must say that is above average. Compared to many offers reviewed in parallel, the company Kaiser has absolutely lifted in terms of service and support.
Even if it has not come to the order, I can only recommend the company Kaiser with my experience 👍🏻.

Super advice, understandable even for a layman

High customer orientation and good communication in all implementation phases
Very good technical advice

Fast help, good accessibility, nice service

I had only a small repair ( toilet flush ). After I had explained the problem to Mr. Kaiser, he promised me quick help. The repair was done the following day to my complete satisfaction. Thank you U. Weber 89547 Gerstetten

We made a good choice with the Kaiser company for the construction of our new heating system. Sophisticated planning was followed by prompt execution. The employees are motivated and always up to date with the latest technology through ongoing training. We are very satisfied and can recommend the company Kaiser without reservation.

The communication and advice was great and always more than satisfactory. We will gladly come back to it again.

Due to a defect in our previous 5-year-old heating system, we had to decide within a very short time for a new heating system. Mr. Kaiser and his team have supported us from the beginning, up to the planned installation, which took place without any problems.
Many thanks once again.

Very friendly and competent is only to recommend.Also Mrs. Haisch in the office always friendly and
obliging.

The company Kaiser has provided me with the initial installation of a log central heating system with an HDG Euro50 boiler in a 150 year old farmhouse.

This was a very extensive project with a separate boiler room in the outbuilding.
Components were:

Boiler room with log boiler, 4000l buffer tank and extensive, highly efficient mixer assemblies from Baunach Rendemix.

Domestic hot water installation in the house incl. new piping from the water meter.

The connection of 17 radiators.

Of course, special solutions are required for the first installation in such a building.
These were professionally developed and implemented by Mr. Kaiser and his outstanding team.

I am not a simple customer. I have very high quality standards and sometimes unconventional wishes. --> These were also implemented more than satisfactorily.
During the project, the so-called "Kaiser standard" was defined.
--> Think first, then work. Everything is meticulously aligned and measured until everything fits exactly. Clean work is done; even on freshly painted walls the guys install a complete domestic water distribution WITHOUT traces. Consideration is given to historic building components. It is implemented EXACTLY as I want it.

If something is unclear, the boiler manufacturer, mixer manufacturer or the chimney builder is called at the same moment.

His team was continuously working on my construction site for about 6 weeks. The interaction was always friendly and respectful and everyone had the goal in mind.


I can recommend Mr. Kaiser without reservation, he can be proud of his company and his employees.

Excellent service, very reliable, competent and friendly.
A recommendation in every respect.

Very competent and reliable. This company is recommended without reservation.