Certified Blower door test throughout the country. Thanks to our experience with the construction of passive houses, we not only find the leaks, but also propose solutions. Ideal for NHS grants. Measurements from 4 000 CZK + VAT, deadlines within 14 days. Build well without heat leaks and mould. Call for a no-obligation on-site consultation.

We are a leading Czech electricity and gas retailer for households, businesses or wholesale customers. We provide electricity and gas supplies, we are straightforward and can advise even in difficult situations. We offer producers the possibility of buying surplus electricity from renewable sources.

We provide free energy advice to households and businesses. Less for energy, more for life.

We have been a Czech energy supplier since 2002. We supply electricity and natural gas to more than 262,000 customer locations throughout the Czech Republic. Stop by and let us show you how much you can save with us.

A simple and clear energy price comparator for everyone. In addition to standard prices, it also compares non-public offers.

We have been a Czech energy supplier since 2002, supplying electricity and natural gas to more than 262,000 customer sites across the Czech Republic. You can stop by and let us calculate how much you can save with us.

Building Energy Performance Certificates (PENB), grant consulting (interest-free loans, NZÚ Light), energy assessments and evaluations, heat loss calculations, thermal and moisture diagnostics for buildings, thermal imaging, and technical property inspections.

Czech energy supplier since 2002, supplying electricity and natural gas to more than 262,000 customer sites across the Czech Republic. You can stop by and let us calculate how much you can save with us.

We are experienced energy specialists and technicians who provide energy certifications for single-family homes, businesses, cities, and regions. Contact us for the preparation of building energy performance certificates (PENB), energy assessments for subsidy programs (NZÚ, OP ŽP), and renovation certificates.