NZÚ 2026 · Renovation Passport

Renovation passport:
why start thermal imaging

From 2026, a renovation passport will be a requirement for grants under the Nová zelená úsporám programme. A drone thermal inspection will help you identify where heat is actually escaping, before you spend on insulation in areas where it won't help.

Thermal imaging enquiry What is a renovation passport? →
Energy renovation of the building: façade and insulation
● Mandatory from 2026 // 01 · What is it

What is a renovation passport

A renovation passport is a long-term plan for the energy renovation of a building. Unlike the Energy Performance Certificate (PENB), which merely describes the current state, the renovation passport specifies exactly what to do, in what order and at what cost.

It is prepared by a registered energy specialist. It includes recommended measures (insulation, window replacement, heat source), an estimate of costs and benefits, the expected return on investment, and a plan for carrying out the renovation step by step, stage by stage.

  • Mandatory condition for the NZÚ Light grant from 2026
  • Mandatory requirement for project assessment under the NZÚ interest-free loan (from June 2026)
  • State grant for processing: 3,000 Kč (detached house) / 5,000 Kč (apartment building)
  • Low-income households: renovation pass and advice free of charge
  • Processed only by a registered advisor under the supervision of SFŽP.
// 02 · Why thermal imaging

Thermal imaging as a basis
for an energy specialist

Thermal imaging is not a legally required attachment to the renovation passport, but in practice it is the most accurate way to determine exactly where heat is escaping and where insulation makes the most sense. The energy specialist then works with concrete data rather than just estimates.

PROBLEM 01

Invisible leaks

Thermal bridges, corners, window reveals, ceiling rings, are not visible to the naked eye. A thermal camera displays them precisely in metres, not just as an estimate from a calculation.

PROBLEM 02

Incorrect sequence of measures

Replacing windows, but insulating only in five years? The formation of thermal bridges and mould around new frames is almost guaranteed. Thermography will reveal the correct sequence for renovation.

PROBLEM 03

Defect versus poor design

A house that still uses more heating than it should even after insulation. A thermal image taken before and after the insulation work will show whether the tradesman did the job correctly.

Without thermal imaging
  • × The energy specialist works from plans and estimates.
  • × Thermal bridges will remain hidden
  • × The risk of incorrect sequencing of measures
  • × No record of the condition prior to renovation
With a drone equipped with thermal imaging
  • ✓ Precise heat loss map of the entire façade and roof
  • ✓ The specialist knows where insulation will make the biggest difference.
  • ✓ Recommended sequence of measures
  • ✓ PDF report as supporting documentation and evidence for the insurance company
// 03 · Process

How thermographic surveys for NZÚ are carried out

The entire process is designed to be as simple as possible. You request a quote, we arrive, and you receive the result as a ready-to-submit PDF for the specialist.

STEP 01

Request a quote online

Fill in the form, type of property, address, whether you need documentation for NZÚ or just diagnostics. We will send an exact price immediately.

STEP 02

Deadline within 5 days

We will arrange a time for the thermal imaging survey. Ideal conditions are in cold weather (autumn to spring), in the morning or evening, when temperature differences are most pronounced.

STEP 03

Drone surveying

A drone equipped with a thermal camera will fly over the entire building. Thermograms will capture the façade, roof and details of risk areas. Scanning takes 30 to 90 minutes.

STEP 04

PDF report within 48 hours

You will receive a report with annotated thermograms, a description of the detected leaks and recommendations. It is directly usable as documentation for an energy specialist.

// 04 · Frequently Asked Questions

Questions and answers

Is a thermographic report a mandatory attachment to the renovation passport?

No, the legislation does not explicitly require it. The renovation passport is prepared by an energy specialist based on a survey and calculations. However, thermographic imaging provides practical supporting material that facilitates the specialist's work and increases the accuracy of their recommendations, particularly when identifying thermal bridges, which calculations can only reveal approximately.

From when is a renovation passport mandatory for NZÚ?

The renovation passport system was launched on 30 April 2026. From 2026, the renovation passport is a prerequisite for submitting an application for the NZÚ Light direct grant and for project assessment under the NZÚ interest-free loan (applications accepted from June 2026).

When is the best time for thermographic imaging?

The ideal period is from autumn to spring, when there is a sufficient temperature difference between the interior and exterior (at least 10 °C). We take images in the morning or evening, when the sun does not distort the results. In summer, thermography does not work reliably.

Who prepares the renovation passport?

A renovation passport can only be prepared by a registered energy advisor: a specialist supervised by the State Fund for Environmental Protection. We prepare a thermographic report as supporting documentation; you will need to arrange the renovation passport itself with an energy specialist (list available on the SFŽP website).

How much does a renovation passport cost?

The state contributes 3 000 Kč towards a renovation passport for a detached house and 5 000 Kč for an apartment building. Low-income households (under the NZÚ Light programme) can obtain it free of charge, including advice. The final price depends on the energy specialist.

Prepare properly for NZÚ

Thermal imaging as the first step towards a grant

We will detect heat leaks using a drone and provide you with a PDF report. This serves as documentation for the energy specialist and the renovation passport.

Non-binding enquiry →