About the company
Building Engineering Systems
Feniks OÜ – Services for private individuals and non-VAT registered customers.
Feniks KM OÜ – Services for businesses and VAT-registered companies.
Depending on the type of client and the nature of the work performed, the contract is concluded either with Feniks OÜ or with Feniks KM OÜ. This does not affect the quality, timelines, or terms of service for the customer.
Feniks specializes in the technical inspection, installation, modernization, and maintenance of building engineering systems. We work with heating systems, water supply, sewerage, heat substations, and also carry out technical inspections of electrical systems. Our mission is to ensure the reliable, safe, and efficient operation of a building’s engineering infrastructure.
We offer a full cycle of engineering solutions — from design through commissioning to ongoing technical maintenance:
- Water Supply — internal and external networks, pump systems, water metering units. Installation and renovation of water supply systems ensuring an uninterrupted supply of clean water to homes or businesses.
- Sewerage — construction, reconstruction, and maintenance of domestic and storm drainage systems.
- Heating — installation, modernization, and balancing of heating systems, heat substations, radiator and floor heating systems.
- Plumbing — installation of plumbing fixtures, shut-off valves, water meters, and other equipment, with a guarantee of quality and long-term reliability.
- Electrical — technical inspection of building electrical systems, condition assessment, and recommendations for improving safety and reliability.
- Technical Maintenance — diagnostics, preventive maintenance, emergency repairs, and servicing of engineering systems.
Why Choose Feniks
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- years of experience delivering projects of varying complexity;
- an engineering-driven approach to every project — from inspection to commissioning;
- technical inspections, engineering system audits, and expert reports;
- service for apartment associations, commercial properties, and private clients;
- modernization of existing engineering systems using modern technical solutions;
- diagnostics, adjustment, and maintenance of heat substations;
- compliance with construction codes, technical requirements, and industry standards;
- transparent quotes, clear timelines, and a warranty on completed work;
<li”>technical support for the facility after work is completed.
This comprehensive approach makes Feniks a reliable partner for private clients, apartment associations, and businesses alike. The company is not limited to installation work — it offers a full cycle of engineering solutions, from technical inspection and design to modernization, maintenance, and expert support of engineering systems.
Professional plumbing solutions that last
Years of installation, repair, and maintenance of water pipes and sanitary equipment.


Meet our team

Konstantin Nejmark
Specialist
Trusted expertise
Our company delivers trusted expertise in the installation, repair, and maintenance of plumbing and water supply systems. A skilled team ensures high‑quality service and long‑lasting performance of your infrastructure.
Innovative ideas
Our company delivers innovative plumbing and water system solutions designed to enhance reliability and efficiency. Modern technologies combined with expert craftsmanship ensure high‑quality installation, repair, and maintenance services.
Quality assurance
Our company guarantees top‑quality installation, repair, and maintenance of plumbing and water supply systems. Verified workflows and experienced professionals ensure reliable performance and long‑lasting durability of your infrastructure.
Safe plumbing solutions you can rely on
Safety‑driven work for dependable water systems
Our company performs plumbing and water system installation, repair, and maintenance in full compliance with strict safety standards. Experienced professionals ensure safe operations and reliable performance of all systems.





