Tankless Water Heater Installation cost in Poland: typically PLN 3,500–10,000 as of 2026. The exact price depends on job scope, materials, urgency (emergency and after-hours work costs more), and local demand. Compare verified local pros and request free, no-obligation quotes for real prices on your job.
- Typical cost
- PLN 3,500–10,000
- Whole-home gas tankless installed
Tankless water heater cost by type
| Project type | Typical cost (PLN) |
|---|---|
| Whole-home gas tankless installed | 3 500–10 000 zł |
| Apartment install (1-day job) | 3 500–6 000 zł |
| House conversion (2–3 days, gas line work) | 6 000–10 000 zł |
| Point-of-use electric tankless | 600–1 800 zł |
| Annual descale (utrzymanie / odkamienianie) | 300–600 zł |
| Thermal modernization tax relief | do 53 000 zł |
Cost in Poland
Tankless units (junkers, podgrzewacze przepływowe) run PLN 3,500–10,000 installed for whole-home gas. Apartment installs are quick (1 day); house conversions take 2–3 days. Many models qualify for thermal modernization tax relief.
What affects the cost?
- Venting — gas units need stainless flue or PVC for condensing models
- Gas line upgrade — many tankless units need 3/4" gas line (vs 1/2" for tanks)
- Electrical upgrade — whole-home electric tankless may need a 200A panel
How to save
- Right-size, don't oversize — bigger tankless = bigger gas line + more $
- Annual descale — extends life and protects warranty
- Stack 25C credit + utility rebate — most homeowners miss the utility rebate
HireLocal research
First-party pricing data
See our aggregated reference rates and provider availability across 5 countries.
HireLocal Reference Pricing Index — Q2 2026: Plumbing, Electrical & HVAC Service Rates Across 5 CountriesLocal pros