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Welcome to energiebüro q50!

Specialists in blower door tests of office and industrial buildings
and blower door measurements of large buildings over 5,000,000 m³

Blower Door

Want to identify leaks in the building?
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Next Stop : Australia !

Written by TL on .

Blower Door Test roesemeier ebq50 Australia Pin

We have got great news this week:

This Friday, our colleague Mr Oppenhausen will be travelling 16744km to Australia and will even continue his journey to New Zealand.

World record still intact

Written by TL on .

energiebüro q50 still holds the world record for the largest ever Blower Door Test

Well it's been over a year ago when the team from the energiebüro q50 received the world record for the largest blower door test all time. In April 2013, the energy experts executed the Blower Door Test, in the new warehouse of well-known online marketing company Zalando with over 30 Minneapolis-blowers. The test lasted nine hours on the measurement on the 101,400-square-foot area. This effort was worth it, as after submission of the recorded data to the Guinness office in England, the team was officially awarded, with a certificate to the world record holder.

Blower Door Guinness World Record Zalando

To date, the record could not be surpassed. For Christian Rösemeier and its employees, this is a great success, on which the entire company is very proud. Due to the outstanding performance, the energiebüro extended its visibility worldwide and collected references from Luxembourg, Netherlands, Sweden, Croatia and even from Mexico. But also in the German area, the company has since handled many successful projects. The domestic market has expanded in recent months, more and more, so that in the first calendar week of 2015 the move from the Starenweg 11 in the Horstweg 16 -18, 31840 Hessisch Oldendorf will take place. This spatial, but also human enhancement allows parallel the expansion of the power spectrum to the area of energy balances in the form of EnEV evidence for non-residential buildings.

Guinness World Record Certificate Blower Door Test

An attempt to break its own record is not yet in sight. CEO Christian Rösemeier revealed, however, that to date a request for a larger project exists, with the implementation of the previous record even could still be outbid. We are anxious to see whether it is possible for the team, once again re-establish such a dismal performance, and look expectantly to the year 2015th.


We're moving

Written by TL on .

The year 2015 marked the expansion and growth

energiebüro q50 is moving

Just in time for the start of the new year looks even our team from energiebüro q50 forward to a great new beginning. The year 2015 is for us in the character of the extension. In recent years, we have successfully established ourselves in the market, a number of projects implemented, expanded our range of services and also the number of employees has increased. That's why we are proud to take the next step.

energiebüro q50 is movingIn the first week of the new year, we pack up the boxes and move to our new location in Horstweg 16-18, 31840 Hessisch Oldendorf. The building, which was once the former Berlin school camp, received a new face by the ARCHEA group of companies and is currently being converted into a "centre of excellence for renewable energy".

A good customer communication and –accessibility belongs to good service. Therefore, we initially remain accessible, despite the new location, for our existing and new customers on the current phone number 0 51 58 - 99 39 224.

The new location is quickly and easily accessible by car, we work in a natural environment. For a brainstorming session in the countryside or to get in the lunch break the head clear, the campus offers excellent opportunities for quiet walks or active outdoor exercise.

CEO Christian Rösemeier is looking forward to the new domicile: "Together with our team we have achieved this step in recent years. For us it is a great achievement to have brought the company so far advanced that the growth is now physically visible. Covering an area of 120 square meters, we will cover 4 offices. The new rooms are modern and warmly decorated, so they give us more air to work with and provide an ideal environment for innovative ideas and the implementation of new projects. "

Umzug ebq50 buero 1 Umzug ebq50 buero

Blower Door Test in sweden

Written by TL on .

Current is created in Sweden Kisa- a production hall for paper with corresponding high-bay warehouse of a Italienisches Contractors. The high-bay warehouse has the particularity an air exchange rate of <0.04 h-1 demonstrated for the installation of an oxygen-reduction plant on an area of ​​approximately 3.150m² and about 20m height.

Contact Informations

Telephone Hotline: D 0800 - 9939224

Horstweg 16-18
31840 Hessisch Oldendorf

Tel.: +49 (0) 51 52 / 690 12 40
Fax: +49 (0) 51 52 / 690 12 49
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.


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