Commercial HVAC Contractor in Brooklyn, NY

Brooklyn commercial buildings need HVAC service that fits their equipment, their access rules and their daily operations. We serve Brooklyn property managers, building owners, facility directors and general contractors with preventive maintenance agreements, service and repair, in-kind equipment replacements and plan-and-spec mechanical projects, backed by more than 40 years of experience in New York City buildings.

Why Brooklyn Buildings Need a Commercial HVAC Partner

Brooklyn's building stock ranges from converted industrial and historic buildings to new commercial and residential towers. Each one comes with its own equipment layout, roof access and building management rules, and most of the work happens while the building is occupied.

• Occupied buildings: we plan service for offices, healthcare facilities, retail and restaurant spaces and multifamily properties, agreeing the schedule and affected areas with the building team before work starts.
• Roof and freight access: rooftop equipment needs a plan for roof entry, material handling and freight elevator or loading arrangements. We confirm those details before a service or replacement visit so technicians arrive prepared.
• Building management: we coordinate work hours, tenant notices and site procedures with management, and keep the property team informed as larger projects progress.

Commercial HVAC Equipment We Install, Repair and Maintain

Our technicians work with the equipment installed in each building and match maintenance and repair tasks to its system requirements:

• Packaged rooftop units (RTUs) and air handling units
• VRF / VRV systems
• Water source heat pumps
• PTAC units, including winterization
• Commercial split and ductless systems
• Computer room AC (CRAC) units for server rooms
• Cooling towers (mechanical service)
• Exhaust fans, EC fan retrofits and makeup air units

We service what we install, so equipment warranties stay valid through proper, ongoing maintenance.

Preventive Maintenance Agreements

Our preventive maintenance agreements are built around the equipment in each building. We review the building's HVAC inventory and set a plan with typically two to four visits per year. A building with rooftop units, PTACs and a server room needs different tasks across those systems, so visit timing and scope follow the equipment.

During scheduled visits our technicians inspect equipment, clean coils, change filters, check refrigerant and operating conditions, make adjustments and test system operation and controls. We document findings and flag anything that needs attention, so the building team has practical information for planning next steps and service records that support manufacturer warranty requirements.

Service Calls and Repairs

A reported symptom can come from a control issue, a component failure or another condition in the system. Our technicians trace it to the root cause, from frozen coils to failing blower motors and refrigerant leaks, then explain the findings and the recommended repair. We keep you informed throughout, and no major repair begins until you approve the scope.

In-Kind Equipment Replacements

When a unit reaches the end of its service life, an in-kind replacement matches new equipment to the existing system and infrastructure. We review how the current unit connects to the building's ductwork, piping, electrical service and controls, which keeps the scope focused on the replacement. For rooftop equipment we coordinate roof and freight access with management and share the work sequence so the building can plan around the installation.

Plan-and-Spec Renovations and Tenant Fit-Outs

We bid and complete plan-and-spec HVAC work for renovations, white-box spaces, tenant space upgrades and retrofits. We review the mechanical documents, bid the specified work and install exactly to the engineer's drawings, coordinating with the general contractor and the other trades. We also bid prevailing-wage work for the NYC School Construction Authority (SCA) to general contractors.

Luxury Apartment and Multifamily Buildings

Brooklyn's luxury rental and condo buildings expect quiet, reliable heating and cooling in every unit. We service and replace VRF systems, water source heat pumps and PTAC units in common areas, amenity spaces and units under renovation, coordinating with management companies so residents see as little disruption as possible. See our guide to luxury apartment HVAC maintenance.

Where We Work in Brooklyn

We serve commercial and multifamily buildings across the borough, including:

• Downtown Brooklyn, DUMBO and Brooklyn Heights: office buildings, retail and new residential towers
• Williamsburg, Greenpoint and Bushwick: converted industrial buildings, creative offices and new multifamily
• Park Slope and Gowanus: retail, restaurant and mixed-use buildings
• Sunset Park and Bay Ridge: industrial, commercial and multifamily properties

We also serve Manhattan and Queens. See our full service area.

Why Brooklyn Property Managers Choose Irving Haase

• 40+ years in New York City buildings: experience with equipment access, operating schedules and coordination with property teams.
• Minimal change orders: careful review of mechanical documents defines the work and the coordination needs before installation.
• Clear communication: you know the scope, the findings and the schedule, and major repairs happen only with your approval.

Call us at (718) 271-4100 or contact us online to set up a maintenance agreement, schedule a service call or request a plan-and-spec bid.