An expert report is a formal document prepared by a court-appointed expert or expert institute under Act No. 254/2019 Coll. It can be used as evidence in court. A technical opinion is an analysis without an expert seal — sufficient for the investor's own decisions or for warranty claims.

The price depends on scope — number of measurements, complexity of the building and depth of analysis. After an initial consultation and site visit I send a fixed-price quote. Reports for family houses usually range in the tens of thousands of CZK; court and commercial reports tend to be higher.

Standard turnaround is 4–6 weeks from the site visit. In urgent cases (failures, upcoming hearings) we can shorten it by agreement. Thermography and Blower Door measurements take roughly one day; the rest is analysis and writing.

Thermography shows where heat escapes — thermal bridges, insulation defects, water ingress. The Blower Door test measures how much air leaks through the envelope per hour. The two methods are often combined: Blower Door confirms there is a problem; thermography during the test pinpoints the exact spot.

Yes. I prepare assessments per ČSN 73 0581 and 73 0580 for both the affected party and the planning investor. The output includes calculated sunlight duration and daylight factor with graphical evidence.