What we offer
We design building water installations and on-site water networks for houses, residential complexes, commercial and industrial sites. For street water mains see external networks.
What we design
- Internal hot and cold water installation with circulation
- On-site water network between buildings
- Supply to fire hydrants and hose reels
- Booster sets where pressure is insufficient
- Irrigation and process water
Sizing
We calculate flows and pressure losses under Ordinance No. 4 of 2005 and choose diameters that keep enough pressure on the top floor without oversizing.
Materials
We specify suitable materials for each part – polyethylene underground, polypropylene or multilayer pipes inside – with a specification for the contractor.
Regulatory framework
Designs are prepared in line with Bulgarian legislation, including:
- Ordinance No. 4 of 2005 on building water supply and sewerage installations
- Ordinance No. RD-02-20-2 of 2024 on water supply systems
- Ordinance No. 4 of 2004 on connecting users to water and sewerage systems
Frequently asked questions
When does the water supply need a booster pump?
When the street main pressure is not enough for the upper floors. We check this against the water utility's data and design a booster set if needed.
Do you design water supply for existing buildings?
Yes – for refurbishment, pipe replacement or conversions. We start by surveying the existing installation.