Boiler Replacement & Oil to Gas Conversions
We handle every stage, from equipment selection through DOB sign-off, ensuring your property runs efficiently and safely through every New York winter. Whether you’re upgrading to high-efficiency gas or converting from oil, our experts deliver reliable performance built to last.
- Oil-to-gas conversions for efficiency and sustainability
- High-efficiency and condensing boiler system installation
- Gas boiler replacement & system upgrades
- DOB and DEP permitting and compliance filing
- Removal and safe disposal of old equipment
Heating System Compliance
Omnia’s heating specialists help property managers and owners stay ahead of inspections, violations, and city requirements. We manage the testing, paperwork, and filings so your systems meet every DOB, DEP, and FDNY standard, without last-minute surprises.
- Annual boiler inspections and certifications
- Local Law 152 gas system inspections
- Violation correction and filings
- Combustion analysis and safety testing
- Compliance reports /digital records for boards & auditors
Gas Leak Inspection & Repair
Gas leaks demand speed, precision, and complete confidence. From initial pressure testing to gas restoration, our team ensures your building and tenants are protected, and your records are completely compliant.
- Emergency gas leak response and repair
- Pressure testing and DOB documentation
- Gas pipe and valve replacement
- Gas system restoration after shutdown
Hot Water Systems
Omnia services, installs, and maintains water heating systems for multifamily, commercial, and institutional properties across New York City. From quick repairs to full replacements, we keep your domestic hot water systems running efficiently and ready when you need them most.
- Domestic hot water system repair and replacement
- Recirculation pump service, repairs and replacement.
- Scale prevention and water treatment services
- Commercial water heater installations
- Preventative maintenance and seasonal tune-up
System Optimization
Fine-tuned boilers, pumps, and controls to reduce noise, improve temperature balance, and cut energy waste. Our technicians look at the whole picture — from insulation to automation — so your building performs better and lasts longer.
- Steam banging and air vent replacement
- Heat timer upgrades and replacements
- Boiler room control wiring and integration
- Pipe insulation and heat loss reduction
- Full system balancing for comfort and cost control
Your Neighborhood Boiler Operator
For nearly a century, Calray Boilers and Pulse Combustion have been trusted by property owners, managers, and boards across New York City for reliable heating service and deep technical expertise.
Today, that legacy continues under Omnia Mechanical Group, bringing boiler, heating, and combustion services together under one coordinated partner. Our legacy includes the teams from Calray Boilers and Pulse Combustion, now part of Omnia’s trusted, unified service. One call connects you to every system that keeps your building running strong.
Still family-owned. Still hands-on. Still trusted by NYC’s most respected properties, generation after generation.
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Omnia: The Name NYC Property Managers Rely On
Omnia+ Maintenance Programs
One Partner. Every System. Year-Round Peace of Mind. Proactive maintenance and NYC compliance under one coordinated plan—simple pricing, priority scheduling, and zero surprises.
What You Get:
- Compliance confidence for DOB, DEP & FDNY (boilers, LL152 gas, RPZ testing).
- Predictable costs with transparent membership pricing.
- Longer equipment life through regular, planned maintenance.
- Bundle & save when you cover multiple systems.
- Dedicated team: one partner, one schedule, one point of contact.
Eligible systems: Boiler & Heat • Pump & Motor • Electrical • Fire Suppression • Drain Cleaning
One Partner. Every System. Year-Round Peace of Mind. Proactive maintenance and NYC compliance under one coordinated plan—simple pricing, priority scheduling, and zero surprises.
What You Get:
- Compliance confidence for DOB, DEP & FDNY (boilers, LL152 gas, RPZ testing).
- Predictable costs with transparent membership pricing.
- Longer equipment life through regular, planned maintenance.
- Bundle & save when you cover multiple systems.
- Dedicated team: one partner, one schedule, one point of contact.
Eligible systems: Boiler & Heat • Pump & Motor • Electrical • Fire Suppression • Drain Cleaning