ViessTech professional boiler services

ViessTech Engineering Services

From initial system design to lifetime maintenance, our certified engineers ensure your heating plant operates at peak efficiency throughout its full lifecycle.

Comprehensive Service Portfolio

Every service backed by factory-trained engineers with access to genuine ViessTech parts and diagnostic tools.

Installation & Commissioning

Full mechanical and hydraulic installation of boiler systems, heat pumps, and cascade configurations. Includes first-fire commissioning, flue gas analysis, and performance verification against design specifications.

Preventive Maintenance

Annual and semi-annual maintenance programs with comprehensive checklists covering heat exchanger inspection, burner tuning, safety device testing, water quality analysis, and efficiency optimization.

Emergency Repair

24/7 emergency response with 4-hour on-site arrival guarantee for critical heating failures. Remote diagnostics via our IoT platform enables pre-dispatch fault identification and parts preparation.

System Design & Engineering

Heat load calculation, hydraulic design, cascade sizing, and BMS integration planning for new builds and retrofit projects. Includes lifecycle cost analysis and ROI projections.

Parts & Replacement

Genuine ViessTech parts inventory with next-day delivery to 48 service centers worldwide. Heat exchangers, burners, control boards, sensors, and expansion vessels always in stock.

Technical Training

Certified training programs for facility engineers and maintenance staff covering boiler operation, fault code diagnostics, safety protocols, and efficiency monitoring best practices.

Our Service Process

A structured approach to every project, from initial consultation to ongoing support.

1

Consultation

Site survey and heat load assessment by our engineering team.

2

System Design

Hydraulic design, equipment selection, and lifecycle cost analysis.

3

Installation

Factory-trained technicians handle mechanical and electrical installation.

4

Commissioning

Performance testing, flue gas analysis, and BMS integration verification.

5

Ongoing Support

Preventive maintenance plans and 24/7 remote monitoring.

Comprehensive Warranty Coverage

Every ViessTech boiler and heat pump ships with a standard 5-year warranty on heat exchangers and 3 years on all components. Extended warranty programs available for up to 10 years with annual maintenance contracts.

Discuss a Service Agreement

Need Technical Support?

Our engineering team is available Monday through Friday, 8:00 AM to 6:00 PM CET. For emergency breakdown assistance, our 24/7 hotline connects you directly to a certified technician.

Service Hotline: +49 (711) 555-0834

Emergency 24/7: +49 (711) 555-0900