brain4sustain GmbH

Sustainable building, energy concepts building services engineering, GEAK, SNBS, SGNI, DGNB, LEED

brain4sustain GmbH
4.89 out of 5
Excellent
14 Reviews
Contact information
As an independent partner, we offer consulting services for energy-efficient and sustainable construction in all project phases.

We are trained, accredited and approved for all known certification systems such as Minergie-P-Eco, SNBS, SGNI, DGNB...

Contact information

brain4sustain GmbH
Heinrichstrasse 267g
8005 Zürich
Switzerland
Directions

Contact person
Andreas Pfeiffer

Websites

Social Media

100% Recommended
5 stars 13
3 stars 0
2 stars 0
1 star 0
Customer service
Excellent (4.80)
Cost-performance ratio
Excellent (4.75)
Top competencies

Customer loyalty

5.00 out of 5
9 Reviews

Documentation

5.00 out of 5
9 Reviews

Expertise

5.00 out of 5
9 Reviews

14 Reviews on ProvenExpert.com

4.89 out of 5
Excellent
4.75 out of 5
Excellent
Recommendation
Mr. Pfeiffer was well prepared and competent. He fully met our expectations in terms of impulse consulting. We would definitely recommend him to others. Thank you very much.
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Customer review & rating for:
Kundenzufriedenheit brain4sustain GmbH
01/12/2023Anonymously
5.00 out of 5
Excellent
Recommendation
I was extremely positively surprised by the accuracy, care and professionalism that Mr. Pfeiffer displayed during our renovation consultation. I consider the final report we received from brain4sustain as extremely helpful, if not elementary in our further planning. For similar projects in the future I will definitely ask brain4sustain again.
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Customer review & rating for:
Kundenzufriedenheit brain4sustain GmbH
01/02/2023Serge W.
5.00 out of 5
Excellent
Recommendation
GEAK Plus apartment building from the 60s: Mr. Pfeiffer is a very competent and friendly specialist partner. He proposes practical and carefully worked out solutions. We will gladly make use of his advice again.
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Customer review & rating for:
Kundenzufriedenheit brain4sustain GmbH
07/08/2020Daniel K.
5.00 out of 5
Excellent
Recommendation
We had brain4sustain carry out a GEAK assessment of two existing halls that are part of a larger site. For this purpose, we first had an initial meeting with Andreas Pfeiffer, in which he very well analyzed the specific initial situation with a view to the further development of the halls. The resulting GEAK report helped us a great deal to identify the problematic components on which we need to focus. With the GEAK report and his advice, Andreas Pfeiffer provided us with a very valuable overview of the actual situation and the possible measures in a very short time. We will gladly consider him again for further work. Yves Deluz, Implenia Switzerland Ltd.
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Customer review & rating for:
Kundenzufriedenheit brain4sustain GmbH
08/09/2019Yves D.
brain4sustain GmbH Comment from brain4sustain GmbH:
Dear Yves
Thank you very much for your very positive feedback and the praising words! I am very pleased that I could help and hope that you have come a step closer to the 2000 watt area certification.
Many greetings
Andreas
5.00 out of 5
Excellent
Recommendation
The cooperation with brain4sustain left nothing to be desired. Mr. Pfeiffer was careful to find individual solutions that corresponded to our ideas and made economic as well as energetic sense. The cooperation was uncomplicated and both GEAK and GEAK Plus were issued within a short time.

We thank you!
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Customer review & rating for:
Kundenzufriedenheit brain4sustain GmbH
07/03/2019David S.
5.00 out of 5
Excellent
Recommendation
Many thanks for the professional and speedy support in the preparation of the renovation report with GEAK Plus as well as the application for Minergie certification! Mr. Pfeiffer has helped us a lot with his expertise in the implementation of a comprehensive renovation concept for our property. We would work together with brain4sustain GmbH again at any time and recommend this company to anyone who wants to renovate energetically.
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Customer review & rating for:
Kundenzufriedenheit brain4sustain GmbH
12/04/2018Marco B.
5.00 out of 5
Excellent
Recommendation
Andreas Pfeiffer is very responsive to customer needs and highly committed to the projects. Gladly again.
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Customer review & rating for:
brain4sustain GmbH
10/23/2018ImmoCorner A.
brain4sustain GmbH Comment from brain4sustain GmbH:
Dear Mike
Thank you very much for your trust and the very pleasant cooperation. Personal commitment and tireless efforts are essential for success in the projects. We are happy to focus on the individual needs of our customers. I am also looking forward to the implementation of the ambitious and sustainable energy supply plans in the projects.
Many greetings
Andreas Pfeiffer
4.77 out of 5
Excellent
Recommendation
Andreas Pfeiffer provides us with expert advice on operational optimization and develops practicable solutions tailored to our needs.
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Customer review & rating for:
brain4sustain GmbH
10/15/2018S.Rigon, Energiefachstelle Stadt W.
brain4sustain GmbH Comment from brain4sustain GmbH:
Dear Sandra
It is great that I can actively support you in the municipal environment with my expertise. It is important to me that you benefit from my expertise and that I can offer you added value. Adapted and pragmatic approaches to solutions are part of my specialty and give me pleasure. I am looking forward to further cooperation with you.
Many greetings
Andreas
5.00 out of 5
Excellent
Recommendation
As a certified energy city, we are dependent on innovative approaches to solutions. Andreas Pfeiffer brings feasible ideas that are both energy-efficient and economical. We appreciate his valuable outside perspective, which he has brought to the Energy Commission for years.
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Customer review & rating for:
brain4sustain GmbH
10/15/2018Dusko S.
brain4sustain GmbH Comment from brain4sustain GmbH:
Dear Dusko
Your positive evaluation and the personal statemant have pleased me very much!
I would like to take this opportunity to thank you for your many years of loyalty and exciting cooperation for more energy efficiency and ecological quality in your Energy City community. It is my daily motivation to look for improvement potentials and to accompany you on the way to the implementation of energy efficiency measures.
I hope for a good cooperation in the future.
Many greetings
Andreas Pfeiffer
4.60 out of 5
Excellent
Recommendation
We were very satisfied with the evaluation of the improvement opportunities and the resulting recommendations.
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Customer review & rating for:
brain4sustain GmbH
10/09/2018Hermann M.
brain4sustain GmbH Comment from brain4sustain GmbH:
Dear Hermann
Thank you very much for your feedback! I am pleased to hear that the operational energy optimization of the existing properties is bearing fruit and that cost and energy savings can be realized.
Many thanks at this point also for the many years of cooperation in a spirit of partnership.
Many greetings, Andreas
5.00 out of 5
Excellent
Recommendation
After the GEAK consultation and the renovation report, we were surprised at how great the savings potential was. Mr. Pfeiffer showed us with great expertise and in an easily understandable way which immediate measures we could take to reduce our energy consumption. For the medium-term measures, Andreas Pfeiffer developed a step-by-step renovation concept according to our ideas.
Christina and Josef Kuster
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Customer review & rating for:
brain4sustain GmbH
10/07/2018Christina und Josef K.
brain4sustain GmbH Comment from brain4sustain GmbH:
Dear Mr. and Mrs. Kuster
First of all, thank you very much for the very positive evaluation, which made me extremely happy!
It was a great pleasure for me personally to have supported you in this interesting project. It is always good to hear that the consulting sessions inspire your renovation plans. I wish you every success for the upcoming execution phase and will, of course, continue to support you in word and deed.
Kind regards, Andreas Pfeiffer
4.89 out of 5
Excellent
Recommendation
Brain4sustain and especially Andreas Pfeiffer is a competent and trustworthy partner. The consulting was very helpful for us.
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Customer review & rating for:
brain4sustain GmbH
10/06/2018Anonymously
brain4sustain GmbH Comment from brain4sustain GmbH:
I was very pleased with the positive feedback! Thank you very much. The consultation was also an enrichment for me. I was pleased that we could accompany you in a step towards energy efficiency.
Kind regards, Andreas Pfeiffer
5.00 out of 5
Excellent
Recommendation
Rating for:
brain4sustain GmbH
10/11/2018Alois A.
brain4sustain GmbH Comment from brain4sustain GmbH:
Lieber Herr Alt
Vielen Dank für die so positve Bewertung. Es hat mich gefreut, dass ich Ihre Erwartungen offensichtlich mehr als getroffen habe. Für Rückfragen stehe ich jederzeit gerne zur Verfügung.
Freundliche Grüsse, Andreas Pfeiffer
4.40 out of 5
Good
Recommendation
Rating for:
brain4sustain GmbH
10/08/2018Prof. Dr. Z. A. - Evoplan AG
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All reviews and experiences about brain4sustain 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 09/28/2018  |  Last update: 01/12/2023   |  Report profile

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