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Commercial HVAC Services for Restaurants & Food Service Across the NYC Metro
A restaurant lives or dies on a balanced kitchen and a comfortable dining room — and the two are constantly at war. Com+ Mechanical handles the full HVAC picture for restaurants, bars, cafes, ghost kitchens, and food-service operations across the five boroughs plus Nassau, Westchester, northern New Jersey, and Stamford, CT. From kitchen exhaust and makeup air balance to dining-room rooftop units, controls, and indoor air quality, we keep the line cooking, the guests comfortable, and the building in code — with 24/7 response when a service night is on the line.
HVAC Challenges in Restaurants & Food Service
Kitchen goes negative — doors slam, hoods spill smoke, appliances backdraft
When exhaust pulls more air than the makeup air system replaces, the kitchen drops into negative pressure. Entry doors become hard to open, the hood stops capturing smoke and grease, and atmospherically vented water heaters or gas appliances can backdraft combustion products. We measure exhaust-versus-makeup airflow and rebalance the system to restore proper capture and safe pressure.
Makeup air unit not heating in winter — kitchen is freezing on the line
A direct- or indirect-fired MAU that has lost ignition, a failed gas valve, a bad modulating control, or a tripped high-limit dumps raw outside air onto the cooks instead of tempered air. In a NYC winter that makes the back of house unworkable. We diagnose the burner, controls, and airflow and get tempered makeup air flowing again.
Dining room can't hold temperature during a full-house rush
Body heat, kitchen heat migration, window walls, and bar lighting create a cooling load that an undersized, fouled, or short-cycling RTU simply can't meet when every seat is filled. Guests sweat, then the late crowd is cold. We assess the real load, the unit condition, and the airflow before recommending repair, rebalancing, or a right-sized replacement.
Grease, smoke odor, and humidity bleeding into the dining room
Poor pressure balance and inadequate ventilation let cooking odor, heat, and moisture cross from kitchen to dining space — a guest-experience and complaint problem. We address the exhaust/makeup balance, fresh-air and filtration strategy, and any transfer paths so the dining room stays clean, comfortable, and odor-free.
Back-of-house overheating from refrigeration and ice-machine heat rejection
Reach-ins, walk-in condensing units, and ice machines reject heat into cramped kitchen and basement spaces. When that heat has nowhere to go, ambient temperatures climb, equipment works harder and fails sooner, and the cooling system fights a losing battle. We evaluate ventilation and cooling for these spaces and coordinate around the refrigeration load.
Repeat breakdowns and emergency bills from neglected, grease-fouled rooftop equipment
Restaurant RTUs and MAUs live in grease-laden, high-runtime conditions that foul coils, glaze belts, and clog drains far faster than a typical office unit. Without a planned maintenance cadence, small issues become a no-cool failure on a Saturday night. We put the equipment on a documented schedule built for food-service duty.
HVAC Built for the Realities of a Working Kitchen and Dining Room
No building type stresses an HVAC system like a restaurant. A commercial kitchen exhausts thousands of CFM up the hood, and every cubic foot has to be replaced by tempered makeup air — or the space goes negative, doors fight you, pilot lights and water heaters backdraft, the AC can't keep up, and grease-laden odor migrates into the dining room. Meanwhile the dining room needs steady, quiet comfort through a packed Friday rush and an empty Tuesday lunch, the bar runs hot under the lights, and refrigeration and ice machines dump heat into already-tight back-of-house spaces. Com+ Mechanical treats the restaurant as one connected airflow system, not a pile of separate boxes. We service and balance kitchen exhaust hoods and makeup air units (MAUs), repair and replace the rooftop units (RTUs) and split systems that condition the dining room and bar, dial in zoning and controls so the front and back of house stop stealing air from each other, and manage the ventilation and filtration that keep odor, heat, and humidity in check. We work around your service hours — early mornings, between lunch and dinner, or overnight — because we know a shutdown during a dinner rush is lost revenue you don't get back. Serving restaurant operators, hospitality groups, and the property managers who lease to them across NYC and the surrounding metro, with planned maintenance, capital retrofits, and 24/7 emergency coverage under one accountable vendor.
HVAC Services We Provide for Restaurants & Food Service
Why Restaurants & Food-Service Operators Choose Com+ Mechanical
Our Simple Process
From call to comfort in 4 easy steps
Walkthrough & Airflow Assessment
We survey the kitchen and dining room together — hood exhaust CFM, makeup air capacity and condition, RTU/split-system tonnage and state, pressure balance, and where heat and odor are migrating. You get a clear picture of how the whole system is actually behaving, not just the unit that failed.
Scope & Plan
We translate the findings into a documented scope: the immediate fix, the balancing or controls corrections, and any maintenance or capital items worth planning for. Pricing is provided in writing before work proceeds, scheduled around your service calendar.
Service & Commissioning
We complete the repair, replacement, or balancing work, then verify it under real operating conditions — hood and makeup air running together, comfort equipment holding setpoint, pressure neutralized. We work clean and around your hours so the line is ready for service.
Documentation & Ongoing Coverage
You receive documented findings and work performed for your records and any health- or code-related needs. We recommend a maintenance cadence and, for multi-site operators, standardized reporting so you can track equipment condition and response across every location.
Types of Systems We Install
Kitchen Makeup Air Units (MAUs)
Direct-fired and indirect-fired makeup air units that replace the air pulled up the kitchen exhaust hood with tempered, code-compliant supply air — the heart of a balanced commercial kitchen.
- •Exhaust-to-makeup airflow balancing
- •Burner, gas valve, and modulating-control diagnostics
- •Negative-pressure and backdraft correction
Dining-Room & Bar Rooftop Units / Splits
Packaged rooftop units and split systems that carry the cooling and heating load for the dining room and bar through full-house rushes and slow shifts alike.
- •Load-matched repair and replacement
- •Economizer and airflow service
- •Zoning and thermostat/controls setup
Ventilation, Fresh-Air & Filtration
Fresh-air, filtration, and exhaust-transfer strategies that keep grease odor, heat, and humidity out of the dining room and maintain comfortable, healthy air for guests and staff.
- •Fresh-air ventilation for occupancy
- •Odor, heat, and humidity control
- •Filtration and air-quality improvements
The Com+ Mechanical Difference for Food Service
Restaurant Airflow Expertise
Exhaust and makeup air balance, negative-pressure correction, and dining-room comfort are core to what we do. We understand how a working kitchen and a full dining room pull against each other — and how to make them coexist.
Scheduled Around Your Service
We plan repairs, changeouts, and maintenance around lunch and dinner rushes — mornings, mid-afternoon lulls, and overnights — because downtime during service is lost revenue. Your operating hours drive our schedule.
One Accountable Vendor
Dining-room RTUs, kitchen makeup air, controls, and indoor air quality under a single point of contact — so problems get solved instead of handed between contractors who each blame the other.
24/7 Metro-Wide Coverage
Across the five boroughs, Nassau, Westchester, northern NJ, and Stamford, CT, we respond to restaurant HVAC emergencies and keep planned work moving..
Transparent Pricing
No fees. No surprises. Just honest service.
Preventive Maintenance Agreement
Planned, documented maintenance built for grease-heavy, high-runtime restaurant equipment — so small issues don't become a Saturday-night failure.
- Seasonal service of dining-room RTUs/split systems and kitchen makeup air units
- Coil cleaning, belt, filter, drain, and burner/control checks on food-service cadence
- Exhaust-versus-makeup airflow and pressure verification
- Priority emergency response and documented condition reports
- Multi-site reporting for restaurant groups and hospitality portfolios
Repairs & Retrofits / Capital Projects
From a single MAU or RTU repair to a full dining-room comfort upgrade, exhaust/makeup rebalance, or kitchen ventilation retrofit.
- Makeup air unit and rooftop unit repair and replacement
- Exhaust and makeup air balancing to restore code-compliant, neutral pressure
- Zoning, controls, and IAQ/ventilation improvements
- Right-sized equipment selection for real kitchen and dining loads
- Documented scope and written pricing before work begins
24/7 Emergency Service
Around-the-clock response when a no-cool, no-heat, no-makeup-air, or negative-pressure failure threatens your service.
- 24/7 dispatch across the NYC metro
- No-cool, no-heat, and no-makeup-air diagnostics
- Negative-pressure and backdraft troubleshooting
- Stabilize operations fast to keep service running
- Repair-vs-replace guidance with documented findings
Pricing shown is a structure, not a quote. Final pricing is confirmed in writing after a building walkthrough and airflow assessment.
Own a Commercial Property?
Business+ plans start at $499/year — includes 2 rtu tune-ups, 10% off all services, and priority scheduling.
Equipment & Brands We Service
Factory-trained technicians for all major HVAC manufacturers
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Frequently Asked Questions
Get answers to common questions about our services
Do you offer 24/7 emergency HVAC service for restaurants in NYC?
Yes. A no-cool dining room, a no-heat kitchen, or a makeup air failure during service can't wait for business hours, so we provide 24/7 emergency response across the five boroughs, Nassau, Westchester, northern NJ, and Stamford, CT.
Can you fix a kitchen that's gone negative — doors hard to open and the hood spilling smoke?
Yes. That's one of the most common restaurant HVAC problems we solve. Negative pressure means the exhaust is pulling more air than the makeup air system is replacing. We measure exhaust and makeup airflow, diagnose whether the issue is the MAU, the balance, or the controls, and restore proper, code-compliant pressure so the hood captures correctly and appliances vent safely.
Do you service the kitchen makeup air unit and the dining-room cooling, or just one?
Both — and that's the point. We cover the whole restaurant as one connected airflow system: the kitchen makeup air unit, the rooftop units and split systems conditioning the dining room and bar, the controls, and the ventilation. One vendor means the front and back of house are balanced together instead of two contractors blaming each other.
How does restaurant HVAC tie into ventilation codes and indoor air quality?
Commercial kitchens are governed by mechanical and fire codes for exhaust and makeup air, and the dining room is subject to ventilation standards for fresh air and occupant comfort. Proper makeup air, balanced pressure, and adequate fresh-air ventilation keep the kitchen safe and the dining room free of grease odor, heat, and humidity. We address the airflow and filtration that support both.
Can you handle HVAC across multiple restaurant locations?
Yes. We support restaurant groups, hospitality operators, and property managers with food-service tenants across multiple sites in the NYC metro, putting every location on one point of contact with consistent reporting so you can track equipment condition and response across the portfolio.
Will keeping our HVAC and makeup air maintained help with energy costs and Local Law 97?
Yes. Restaurant HVAC and makeup air run long hours and are a large share of the building's energy load and Local Law 97 emissions profile. Clean coils, correct refrigerant charge, properly balanced makeup air, and right-sized equipment keep units from running longer than they should — lowering kWh and the emissions that count toward the building's targets. We flag efficiency-robbing faults during any service visit.
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Kitchen Out of Balance or Dining Room Too Hot? Let's Fix the Whole System.
Tell us the restaurant and the symptom — a negative kitchen, a no-heat makeup air unit, a dining room that can't keep up during the rush — and we'll assess the full airflow picture and get you running. Serving restaurants, bars, and food-service operators across the NYC metro, scheduled around your service hours, 24/7.
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