rewater s.r.o.

rewater helps building operators significantly reduce water consumption — and the energy used to heat it — without compromising user comfort. Most taps, showers and urinals deliver far more water than needed; rewater corrects this with proven engineering and a measurable, end-to-end service.

Technology. We use pressure-independent constant-flow regulators and aerators — delivering a steady, comfortable flow regardless of supply pressure, with built-in limescale protection for long, maintenance-free service life. No civil works, no downtime.

Service, not just a product. Every project follows three steps: (1) water audit of the building’s fixtures and consumption, (2) installation of the optimal regulators per fixture, and (3) verified savings based on metered, per-capita data — so the result is documented, not estimated.

Proven results. rewater’s installations consistently cut water use by 13–30 % with payback typically under one year:

• Trutnov Hospital (CZ): −13.65 % water across hospital buildings; annual savings CZK 544,679 against CZK 425,465 invested — ROI ~10 months (publicly published reference).

• City of Plzeň (CZ): −16.4 % water across 5 public buildings (schools, social-care, municipal offices) in a 2025 pilot.

• Premium hospitality (6 hotels, brands incl. Marriott/Hilton/Kempinski): up to 30 % water savings, ROI ~9 months.

Why it matters now. Saving water also saves the energy used to heat it — a significant share of a building’s energy bill — and the associated CO₂. A single retrofit therefore supports three ESRS/CSRD areas at once: climate (E1), water (E3) and operations — a fast, low-capital win for any building’s sustainability targets.

Segments: hotels & hospitality, healthcare, public sector & municipalities, commercial and managed properties, industry.