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All FiveBoroughsCovered
New York City commercial HVAC contractor serving property managers and building owners across the five boroughs and the metro area — RTU service, VRF installation, commercial boilers & 24/7 emergency response
Commercial HVAC Services for Every Need
Professional heating, cooling, and ventilation solutions for commercial properties
Commercial AC & RTU Service
Professional rooftop unit and commercial AC repair, installation, and maintenance for reliable tenant comfort
Commercial Boiler & Heating
Expert commercial boiler repair, heating plant service, and system replacement for properties of all sizes
Commercial IAQ & Ventilation
ASHRAE-compliant ventilation design, ERV installation, and air filtration for healthier commercial spaces
VRF & Building Automation
VRF/VRV system design, BAS integration, and smart controls for energy-efficient commercial buildings
24/7 Commercial Emergency HVAC
Round-the-clock emergency heating and cooling repairs for commercial properties — call for current response times
Brands We Install & Service
Factory-trained technicians for all major commercial HVAC, boiler, and heat pump manufacturers
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Full-Service Commercial HVAC in New York City
From emergency RTU repair to full system installation, we deliver comprehensive heating, cooling, and ventilation solutions for commercial properties across New York City.
Rooftop Unit (RTU) Service
Commercial rooftop units take a beating from harsh New York weather. UV degradation, extreme temperature cycling, and exposure to environmental elements reduce efficiency and shorten equipment life. Our technicians service all major RTU brands — Carrier, Trane, Lennox, York — with a $269 flat diagnostic credited toward the repair.
Explore rooftop unit (rtu) service services →VRF/VRV System Design & Installation
Variable Refrigerant Flow systems deliver precise zone control for multi-tenant offices, retail spaces, and mixed-use buildings. We install Daikin, Mitsubishi, and Carrier VRF systems with simultaneous heating and cooling capability, with system design coordinated with a licensed Professional Engineer — ideal for buildings with diverse occupancy and load profiles.
Explore vrf/vrv system design & installation services →Commercial Boiler & Heating Plant Service
Commercial buildings across New York City — from historic multi-tenant structures to modern facilities — include a wide variety of steam and hydronic heating systems that require specialized expertise. We service, repair, and replace all boiler types — cast iron, condensing, and steam — from Weil-McLain, Burnham, Fulton, and Cleaver-Brooks. From circulator failures to full plant replacements.
Explore commercial boiler & heating plant service services →Commercial IAQ & Ventilation
Indoor air quality compliance is critical for offices, restaurants, and healthcare facilities. We install commercial ventilation systems, energy recovery ventilators (ERVs), and air filtration solutions, with design coordinated with a licensed Professional Engineer to meet ASHRAE 62.1 and local building codes.
Explore commercial iaq & ventilation services →Building Automation & Controls
Integrate your HVAC systems with modern building automation for centralized monitoring, scheduling, and energy optimization. We install and program building automation system (BAS) and DDC controls from Honeywell, Siemens, and Johnson Controls — for centralized monitoring and tenant comfort.
Explore building automation & controls services →Sheet Metal & Custom Ductwork
Custom ductwork fabrication and installation for new construction, tenant fit-outs, and system retrofits. Our sheet metal team handles everything from kitchen exhaust hoods to full commercial duct systems — built for proper airflow, code compliance, and long-term durability.
Explore sheet metal & custom ductwork services →Preventive Maintenance Contracts
Planned maintenance agreements protect your investment and prevent costly emergency breakdowns. Our commercial PM programs include quarterly inspections, discounted repairs, and detailed equipment reports — keeping your building systems running efficiently year-round.
Explore preventive maintenance contracts services →24/7 Commercial Emergency HVAC
Tenant complaints at 2 AM? RTU failure during a July heatwave? We take commercial emergency calls 24/7 — call (332) 600-4640 for current response times. Your tenants' comfort and your business operations shouldn't wait.
Explore 24/7 commercial emergency hvac services →Commercial HVAC Brand Rankings
Independent rankings based on what we install and service — no paid placements.
Best Rooftop Unit (RTU) Brands
Carrier, Trane, AAON and more, ranked for NYC buildings.
See the rankingBest VRF Brands
Daikin, Mitsubishi, LG and more for zoned comfort.
See the rankingBest Commercial Boiler Brands
Lochinvar, Viessmann, Weil-McLain and more.
See the rankingBest Chiller Brands
Trane, Carrier, Daikin Applied and more for large plants.
See the rankingWhy property managers choose us
The Commercial HVAC team businesses trust
EPA 608-certified technicians. Upfront pricing. Fully insured. 24/7 emergency dispatch.
All Technicians
Certified Technicians
Every technician is EPA 608-certified and background-checked. Experienced specialists handle commercial diagnostics.
Emergency Dispatch
24/7 Emergency Dispatch
Round-the-clock emergency dispatch for commercial properties when systems go down. Call (332) 600-4640 for current response times.
Flat Diagnostic, Credited to Repair
Upfront Pricing
Upfront pricing on every repair and install. The quote is the price.
Boilers · Chillers · VRF
Commercial Repairs Done Right
Rooftop units, boilers, chillers, and VRF systems — diagnosed and repaired by experienced commercial technicians.
Major Brands
Brand Expertise
Deep hands-on experience across major commercial equipment brands like Carrier, Trane, and Daikin.
On Request
Fully Insured
Fully insured for every commercial job, with a Certificate of Insurance on request.
Your Building Deserves
Year-Round Protection
Planned Maintenance
Custom maintenance agreements for commercial properties — quarterly inspections and predictable HVAC costs.
Quarterly Inspections
Scheduled seasonal inspections for all HVAC equipment — catch issues before they become emergencies.
24/7 Emergency Dispatch
Contract clients can reach 24/7 emergency dispatch at (332) 600-4640.
15% Off All Repairs
Contract clients save on every service call — parts, labor, and equipment replacements.
Extended Equipment Life
Proactive maintenance helps extend commercial HVAC equipment life.
Commercial HVAC expertise
Why commercial buildings need specialized HVAC
Commercial buildings in New York City face unique challenges. Extreme climates, diverse building stock, and rising energy costs create demands that only specialized commercial HVAC expertise can solve.
Extreme Climate Ranges
90°F+ summers. Sub-zero winters.
Extreme seasonal swings demand commercial systems rated for both high cooling loads and reliable heating. Undersized or aging equipment fails at the extremes — costing you tenants and revenue.
Harsh Weather & Environment
UV, humidity, and weather extremes degrade HVAC equipment faster without proper maintenance.
UV degradation, humidity, freeze-thaw cycles, and regional weather patterns all take a toll on commercial HVAC equipment. Regular inspection and maintenance prevents premature failure and extends equipment life.
Diverse Building Stock
Historic structures. Modern offices. Retail & industrial.
Commercial properties in New York City range from historic multi-tenant buildings to modern Class A offices — each requiring tailored HVAC solutions, from VRF retrofits to full RTU replacements.
Rising Energy Costs
Energy costs weigh on commercial buildings
Upgrading to high-efficiency commercial systems and building automation system (BAS) integration can reduce HVAC operating costs. We walk through payback with you so the upgrade makes financial sense for your property.
Commercial HVAC Questions
Answers to common questions about commercial HVAC service, maintenance contracts, and equipment for property managers and building owners
Still have questions? We're here to help!
Call (332) 600-4640Commercial HVAC in New York City
Based in Midtown Manhattan, serving commercial properties across New York City
Contact us with your property location to confirm availability.
Nassau County
Queens, NY
Manhattan, NY
Brooklyn, NY
Suffolk County
Staten Island, NY
Westchester County
Don't see your area? Contact us — call (332) 600-4640 to confirm availability.
Your Commercial HVAC Partner in New York City
Based at 264 W 40th St, New York, NY, serving commercial properties across New York City. Call (332) 600-4640 for current response times.
Com+ Mechanical
264 W 40th St Suite 503B, New York, NY 10018
Com+ Mechanical
Commercial HVAC Contractor
Business Hours
Savings You Can
Count On
Limited-time offers with real savings — grab yours before they expire.
First Commercial Service Contract
New commercial accounts — credited toward first PM agreement
Commercial Site Assessment
Full mechanical audit for buildings 5,000+ sq ft — $350 value
Full RTU or Chiller Replacement
1–5 year labor warranty depending on installation package