Our projects
Single-family houses, apartment buildings or larger buildings: we carry out several hundred tests every year.
Single-family houses
We carry out air permeability tests for your new-build or renovation project. Non-exhaustive list.
Large buildings
We carry out multi-fan air permeability tests on large buildings: hospitals, sports complexes, concert halls, schools, after-school centres, etc. Non-exhaustive list.
Apartment buildings
We carry out air permeability tests on residential buildings using regulatory sampling.
6 projects up close
Real figures taken from our test reports: the required value, the measured value and what the test brought to the project.
Apartment buildings · RE2020
Beelodge Campus residence
Bouygues Immobilier · Mulhouse (68) · 2026
0.99 m³/(h.m²)
measured vs. 1.00 required · 50 flats, 6 tested
RE2020 sample-based completion test on 3,398 m². Compliant with a 1% margin: on apartment buildings, accurate testing and calculation make the difference when the certificate is issued.
Renovation · social landlord
Cité Risler, before renovation
Ophéa · Strasbourg-Neudorf · 2024
27 flats
tested in 6 buildings in one week
Airtightness baseline before renovation: 0.52 to 0.80 m³/(h.m²) depending on the building. The landlord now has a reliable starting point to target the works and measure the improvement.
Public building · timber frame
Betschdorf after-school centre
Municipality of Betschdorf · Bas-Rhin · 2023-2024
0.27 m³/(h.m²)
against a 0.28 target · 1,754 m²
A very demanding target set by the thermal study. Three tests (one zone, then the whole weathertight building, then completion) to fix leaks at the right time. Ventilation ducts checked: class A on supply.
Commercial and production
Brasserie Perle
New production site · 2023-2024
0.60 m³/(h.m²)
vs. 1.7 required · reception and offices
New timber building combining brewing and public areas. Separate intermediate tests on the production hall and the reception area, then completion: a result almost three times better than required.
Education · envelope and ducts
INSPE Strasbourg-Meinau
SERS · Strasbourg · 2024
1.18 → 0.79
m³/(h.m²) vs. 1.00 required, from site stage to completion
Multi-fan test at site stage: 1.18, not compliant. The leaks we found were fixed and the completion test gave 0.79. All 6 air handling unit duct networks (nearly 1,500 m² of ductwork) reached class B.
Ultrasonic leak detection
Neuhof secondary school
Solares Bauen · Strasbourg · 2025
5 zones
curtain walls inspected from aerial platform and scaffolding
The construction sequence made a blower door test impossible. Ultrasonic inspection located the defects zone by zone so they could be fixed before the weathertight test.
Several hundred tests a year since 2009
Exp’Air 67 works with homeowners, builders, developers, landlords and local authorities throughout Alsace and the Grand Est region. Every test complies with NF EN ISO 9972 and is carried out by an operator certified Qualibat 8711 (envelope) and 8721 (ductwork).
Detached houses
New traditional or timber-frame houses, flat-roof houses, low-energy renovations: intermediate tests to fix leaks before finishing, then a final measurement for the RE2020 certificate.
Apartment buildings
Private developments and social housing projects, tested by regulatory sampling, with ventilation ductwork checked during the same visit.
Large and commercial buildings
Schools, childcare centres, healthcare facilities, head offices, hotel complexes and sports centres: multi-fan tests on large volumes, coordinated with the contractors on site.
Why choose us
- More than 15 years of experience in airtightness testing
- Two locations in the Bas-Rhin: Flexbourg and Reichstett
- On site within 48 hours, report within 24 to 48 hours
- They trust us: Bouygues Immobilier, Eiffage, Promogim, Habitat de l’Ill, Opus 67, CUS Habitat…