Issler GmbH

Bathroom renovation, heating, residential renovation, water damage, customer service, solar,

Issler GmbH
114 Reviews i
published (97%)
out of 117 reviews
Contact information
The most important thing when modernizing is the certainty that everything will run the way you want it to. As a demanding specialist company, we give you the greatest possible security with exclusive guarantees.
No matter whether you want to...

Contact information

Issler GmbH
Waldemar-Hellmich-Str. 2
79639 Grenzach-Wyhlen
Germany
Directions

Contact person
Gerhard Wildschütz

Review from 11/11/2023  
4.75 out of 5
Excellent
Recommendation
Quality
Services
Implementation
Consulting

45 Reviews on ProvenExpert.com

4.75 out of 5
Excellent
Recommendation
After 30 years, we wanted to replace our old gas heating system with a heat pump. Initially we had our doubts: can a heat pump also be used to heat an existing detached house without having to replace the windows and carry out extensive insulation work first? The competent advice, the communicative exchange and the thorough planning of Issler GmbH in Grenzach-Wyhlen ultimately convinced us to install a heat pump with a Solvis hot water cylinder. The clean execution of the work by Mr. Mehlin and Mr. Roser, but also by the contracted third-party companies - from setting up the construction site, to the wall breakthrough, the design adaptation to the outdoor facilities by the gardener, the installation and the insulation of the pipes - are particularly noteworthy. The deadlines were met exactly and the installation is running smoothly.
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Customer review & rating for:
Issler GmbH
11/11/2023Christian P.
Issler GmbH Comment from Issler GmbH:
Many thanks for the great feedback! Always happy to do it again :)
5.00 out of 5
Excellent
Recommendation
We are completely satisfied! From planning to installation and final acceptance of our new heating system, heat pump and renovation of our bathrooms, everything went smoothly. Thank you for the competent advice and clean work!
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Customer review & rating for:
Issler GmbH
09/05/2023Anonymously
Issler GmbH Comment from Issler GmbH:
Thank you for the positive feedback!
5.00 out of 5
Excellent
Recommendation
We are completely satisfied! From planning to installation and final acceptance of our new heating system with heat pump and renovation of our bathrooms, everything went smoothly. Thank you for the competent advice and clean work!
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Customer review & rating for:
Issler GmbH
09/05/2023Anonymously
5.00 out of 5
Excellent
Recommendation
- friendly and attentive
- responded very well to customer requests
- optimal solution proposal for the unconstruction of a very small bathroom with sloping roof (replacement of bathtub by shower)
- professional execution and adherence to the schedule
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Customer review & rating for:
Issler GmbH
07/30/2023Anonymously
Issler GmbH Comment from Issler GmbH:
Thank you very much for the great feedback! We are pleased that you are satisfied with our service and performance. We will be happy to be there for you in the future as well.
5.00 out of 5
Excellent
Recommendation
Competent and careful installation as well as adjustment of a new, high-quality hybrid system gas heat pump Made in Germany by a friendly and dedicated team. The special features of the building were taken into account as well as the needs of the residents. All open questions were answered, also in the time after commissioning. The BAFA subsidy was also successfully handled. We'll be back every time!
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Customer review & rating for:
Issler GmbH
07/20/2023Anonymously
Issler GmbH Comment from Issler GmbH:
Thank you for the great feedback! We are glad that you are satisfied with our service and competent team. Gladly again at any time :)
5.00 out of 5
Excellent
Recommendation
Project management and quality of work
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Customer review & rating for:
Issler GmbH
11/21/2022Gonzalez V.
Issler GmbH Comment from Issler GmbH:
Thank you for the great review! We are happy to be there for you in the future.
5.00 out of 5
Excellent
Recommendation
We had our 30 year old gas burner replaced in the spring of 2022.

We were completely convinced by Issler's offer for the installation of a SolvisBen including solar collectors and we do not regret this decision at all.

Advice, planning, communication, installation and help with the subsidy application - everything TOP. The system works great and we have already achieved significant savings in consumption.

The completion of work (insulation, sealing wall breakthroughs) by contracted third-party companies unfortunately turned out to be a bit tough and required more commitment from our side than should actually be necessary, but in the end everything was done and we could not be more satisfied.
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Customer review & rating for:
Issler GmbH
07/06/2022Familie B.
Issler GmbH Comment from Issler GmbH:
Thank you very much for the good review, Beyer family! :-)
5.00 out of 5
Excellent
Recommendation
After we had our oil heating replaced by a heat pump last year - competent, detailed advice by Mr. Burkart, very clean execution by Mr. Mehlin and colleagues - we were so satisfied with ISSLER that we decided in the spring to also have our comprehensive bathroom renovation carried out by ISSLER.
We were NOT disappointed, on the contrary! Now we have a super great bathroom!!!
Planning by Mr. Buck and execution by Mr. Heisenberger, everything in the best way! All craftsmen involved worked cleanly and competently, the deadlines were met exactly. Many thanks for that.
Also the pleasant contact is worth mentioning.
We can only recommend you!
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Customer review & rating for:
Issler GmbH
06/24/2022Günter und Gabriele U.
Issler GmbH Comment from Issler GmbH:
Thank you very much for the great review! We are very happy to pass this on to our competent team :)
4.75 out of 5
Excellent
Recommendation
The company Issler has completely renovated our small bathroom and were competent, clean, reliable and always responsive from the beginning. Small still existing defects are processed. Through the renovation we have gained more space ! Thank you !!! Any time again !!!

Heike and Andreas
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Customer review & rating for:
Issler GmbH
04/13/2022Heike und A.
Issler GmbH Comment from Issler GmbH:
Thank you for the review! We are also in the future gladly you there.
5.00 out of 5
Excellent
Recommendation
Very competent execution, despite partly in advance by external planners executed defective planning. These planning errors and uncertainties has Issler and especially their installer Mr. Heisenberg unerring and professionally super as well as possible remedied and delivered a very good end result!
For me a lesson: Sanitary and heating installation not by external specialist planners and then tender, but go directly to the craftsman! Even if then no offers between craftsmen can be compared, the planning is nevertheless more practically oriented and at the end under the line surely more favorably!
At Fa. Issler I had the impression that a competent planning would have been in the best hands, because they have as mentioned existing errors obligingly corrected!
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Customer review & rating for:
Issler GmbH
04/12/2022S.
Issler GmbH Comment from Issler GmbH:
Thank you very much for the great review! We are always happy to be there for you in the future. :-)
5.00 out of 5
Excellent
Recommendation
We had our shower replaced with a steam bath. From the consultation to the execution, we are very satisfied. Many thanks to the team of the company Issler!
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Customer review & rating for:
Issler GmbH
03/31/2022Familie L.
Issler GmbH Comment from Issler GmbH:
Thank you for the great review, Lafranchi family!
4.25 out of 5
Good
Recommendation
very helpful and competent staff especially the warehouse staff
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Customer review & rating for:
Issler GmbH
03/29/2022Antonio M.
Issler GmbH Comment from Issler GmbH:
Thank you for the review, we will gladly pass this on to our team!
5.00 out of 5
Excellent
Recommendation
Shower renovation: super satisfied, good advice, great products, punctual and clean work.
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Customer review & rating for:
Issler GmbH
03/18/2022Anonymously
Issler GmbH Comment from Issler GmbH:
Thank you very much!
5.00 out of 5
Excellent
Recommendation
Great team, very good customer service, good internal organization
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Customer review & rating for:
Issler GmbH
08/23/2021Anonymously
Issler GmbH Comment from Issler GmbH:
Thank you very much for the great review, we are very happy about it!
4.75 out of 5
Excellent
Recommendation
Mr. Rieger has already been with us a few times, we were very satisfied with his services.
We would be very happy if Mr. Rieger would continue to be available to us.
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Customer review & rating for:
Issler GmbH
07/08/2021Rosmarie H.
Issler GmbH Comment from Issler GmbH:
Thank you for the good review!
5.00 out of 5
Excellent
Recommendation
We intended to replace our old oil heating system with a Solvis solar system with Luna evacuated tube collectors and gas burner and quickly received an on-site appointment from Mr. Brunner. The offer also came very quickly. After we had decided in favor of Issler, we were able to apply for the subsidy together with Mr. Brunner. The offer was valid until the funding approval. On 02.11.2020, after Mr. Burkart went through everything with us again on site due to Mr. Brunner's inability to attend, the order was placed and execution began on 23.11.2020. Already on 26.11. the heating went back into operation. Mr. Mehlin and Mr. Werner with a trainee carried out the work very cleanly and conscientiously. After only 5 days everything was ready. Mr. Brunner was present on the construction site once a day.
We were very satisfied with the friendliness and the execution and can recommend Issler with a clear conscience.
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Customer review & rating for:
Issler GmbH
12/17/2020Werner und R.
Issler GmbH Comment from Issler GmbH:
Thank you very much for your positive review, Werner and Rita! We are happy to be there for you in the future. :-)
5.00 out of 5
Excellent
Recommendation
The heating change was fast, clean, competent and not overpriced. The employees are friendly and work precisely. Issler also took over the coordination for chimney sweep and electrician and the application for government grants at BAFA. The Solvis heating system is easy to retrofit or add solar and photovoltaic at any time. During construction we were supplied with heat and hot water by separate heating generators. Many thanks to all.
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Customer review & rating for:
Issler GmbH
11/13/2020S.
Issler GmbH Comment from Issler GmbH:
Thank you very much for your positive feedback. We are pleased that you are completely satisfied with our service. Gladly again at any time!
5.00 out of 5
Excellent
Recommendation
It's just fun to work with you, the whole package just fits.
Looking forward to more projects together.
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Customer review & rating for:
Issler GmbH
08/31/2020Fa. Brendlin GmbH - Sascha K.
Issler GmbH Comment from Issler GmbH:
Thank you very much for your positive feedback. We are happy to be there for you in the future!
4.50 out of 5
Excellent
Recommendation
We purchased a Solvis heating system from Issler. From the consultation, to support, to the installation, everything went great. It was important that the planned system meets our current and future needs. Planned time frames were adhered to and the old system including peripherals was disposed of.

The work lasted a week and the mechanics present worked very cleanly and were also available for questions. The comprehensive briefing on the new equipment was very pleasant. Our wishes regarding the settings were always implemented and explained. Even for subsequent questions, they still had an open ear.

It was particularly pleasant that we did not have to worry about anything. All service providers such as electricians, energy suppliers and insulators were coordinated and commissioned by Issler.

On a positive note, enough time was always scheduled for discussions and all concerns could be clarified without time pressure.

The whole thing happened two months ago and we are still satisfied. Based on this experience, I can only recommend Issler in the area of heating construction.
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Customer review & rating for:
Issler GmbH
07/06/2020Anonymously
Issler GmbH Comment from Issler GmbH:
Thank you for your positive review. We are happy to be there for you in the future!
5.00 out of 5
Excellent
Recommendation
Excellent execution by Mr. Obermonteur Mehlin with the help of his very motivated and precise working trainee.
Appreciative and friendly way of dealing with the trainee, very polite and careful behavior with us as customers. Tip-top in terms of punctuality and cleanliness, as well as expertise, advice and support from the entire Issler team.
We did not have to do without hot water and heating during the installation: Issler provided us with a mobile hot water system and fan heater to tide us over.
Advice and help in applying for state subsidies was part of the excellently organized overall package. Wellness package for wellness heating, showering and living!
Thank you!!!
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Customer review & rating for:
Issler GmbH
05/07/2020J.
Issler GmbH Comment from Issler GmbH:
Thank you very much for the positive feedback. We are pleased that you are completely satisfied with our service !
69 Reviews from
1 other source
4.10 out of 5
Good
4.10 out of 5
Good
69 reviews on Google Maps
 
03/01/2024
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* All reviews and experiences about Issler GmbH are the subjective opinions of those who compose and submit them  |  The profile owner is responsible for the contents of this page  |   Profile active since 08/13/2018  |  Last update: 03/01/2024   |  Report profile

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