Water Source Heat Pumps vs VRF for NYC Commercial Buildings
Water source heat pumps (WSHP) and variable refrigerant flow (VRF) systems are the two most common choices when NYC property managers and general contractors evaluate building-wide HVAC upgrades for commercial and multi-family properties. Both move heat efficiently, but they do it in fundamentally different ways, and that difference shapes everything from bid scope to […]
RTU vs Split System: Which is Best for NYC White-Box Renovations?
When choosing between an RTU and a split system for a NYC commercial tenant renovation, the core question is whether the building’s roof, interior layout, and zoning demands favor a consolidated rooftop package or a separated indoor/outdoor configuration. An RTU (rooftop unit) houses all HVAC components in a single rooftop cabinet, while a split […]
CRAC Units vs Standard AC for NYC Commercial Server Rooms
A CRAC unit, or computer room air conditioner, is a precision cooling system built specifically to maintain stable temperature and humidity for IT equipment in server rooms, data centers, and telecom closets. Standard comfort cooling, by contrast, is engineered for human occupancy, not continuous high-density heat loads. For NYC general contractors, IT directors, and […]
Commercial HVAC Compressor Replacement in NYC
Commercial HVAC compressor replacement is the process of removing a failed or condemned compressor from a commercial air conditioning system and installing a verified replacement unit to restore full cooling capacity. In NYC commercial buildings, this work spans rooftop package units, large split systems, and multi-zone configurations across office buildings, retail corridors, and luxury […]
LG Multi V System Repair & Upgrades in NYC
LG VRF repair in NYC refers to the diagnosis, component service, and system restoration of LG Multi V variable refrigerant flow equipment installed in commercial and multi-family buildings across the five boroughs. These systems are more complex than standard HVAC equipment, and repairing them in occupied buildings requires contractors with specific technical knowledge and […]
HVAC Contractor Long Island City For Commercial Projects
When you need a qualified HVAC contractor in Long Island City, Irving Haase & Co., Inc. is a mechanical contracting firm serving commercial clients across Queens, Brooklyn, and New York City with plan-and-spec bidding and in-kind equipment replacement work. We have operated as a family-owned mechanical contractor for over 40 years, building a reputation […]
HVAC Contractor Tribeca: Commercial Service In NYC
Irving Haase & Co., Inc. is a commercial HVAC contractor serving Tribeca, NYC, with over 40 years of experience delivering professional mechanical work for property teams across New York City. We specialize in plan and spec bidding for tenant renovations and in-kind equipment replacements for luxury multi-family buildings, making us a dependable mechanical partner […]
HVAC Contractor DUMBO For Commercial Projects
As an HVAC contractor in DUMBO, Brooklyn, Irving Haase & Co., Inc. provides commercial mechanical services to general contractors, property managers, and facility directors managing tenant renovations, white-box spaces, and luxury multi-family buildings. We bid exclusively on plan and spec work and perform in-kind equipment replacements, making us a reliable mechanical partner for projects […]
HVAC Contractor Chelsea: Commercial Service In NYC
An HVAC contractor in Chelsea, NYC handles the full mechanical scope for commercial tenant build-outs, luxury multi-family buildings, and institutional facilities requiring licensed, bid-based execution. Irving Haase & Co., Inc. has served New York City’s commercial property market for over 40 years, bringing a disciplined plan-and-spec bidding approach and in-kind replacement expertise to every […]
HVAC Contractor Financial District For Commercial Projects
As an HVAC contractor serving the Financial District, Irving Haase & Co., Inc. delivers commercial mechanical work across tenant renovations, white-box spaces, and luxury multi-family buildings throughout Lower Manhattan, Brooklyn, and Queens. We specialize strictly in plan-and-spec bidding for new commercial scope and in-kind equipment replacements, with no design/build engineering or residential work. With […]
Dedicated Outdoor Air Systems NYC For Commercial Spaces
Dedicated Outdoor Air Systems in New York City are standalone HVAC units that condition 100% outside air before delivering it to occupied commercial spaces, completely separate from the systems that handle heating and cooling loads. Irving Haase & Co., Inc. installs and replaces these systems in commercial tenant renovations, white-box spaces, and luxury multi-family […]
HVAC Contractor Hudson Yards For Commercial Projects
Irving Haase & Co., Inc. is a commercial HVAC contractor serving Hudson Yards, NYC with over 40 years of experience in the New York City mechanical contracting market. We specialize in plan-and-spec bidding and in-kind equipment replacement for tenant renovations, white-box spaces, and luxury multi-family buildings across Manhattan, Brooklyn, and Queens. The Hudson Yards district […]
HVAC Contractor Midtown West: Commercial Service
Irving Haase & Co., Inc. is a commercial HVAC contractor serving Midtown West, NYC with over 40 years of experience in mechanical contracting across New York City. We specialize exclusively in plan and spec bidding for tenant renovation work and in-kind equipment replacements, making us a precise fit for General Contractors, Property Managers, and […]
HVAC Contractor Flatiron District For Commercial Projects
As an HVAC contractor serving the Flatiron District, Irving Haase & Co., Inc. provides commercial mechanical services for tenant renovations, white-box spaces, and luxury multi-family buildings across NYC. Our work focuses on plan-and-spec bidding for new commercial scopes and in-kind equipment replacements, making us a precise fit for General Contractors, Property Managers, and Facility […]
HVAC Contractor Lower East Side For Commercial Projects
Irving Haase & Co., Inc. is a commercial HVAC contractor serving the Lower East Side, NYC with plan and spec bidding, in-kind equipment replacements, and tenant renovation scope work. For over 40 years, our team has been the trusted mechanical partner for General Contractors, Property Managers, and Facility Directors across New York City. We […]
HVAC Contractor SoHo: Commercial Service In SoHo, NYC
Irving Haase & Co., Inc. is a licensed HVAC contractor serving commercial properties in SoHo, NYC, with over 40 years of mechanical contracting experience across New York City, Brooklyn, and Queens. We specialize in plan-and-spec bidding for tenant renovations and in-kind equipment replacements, making us a direct fit for general contractors, property managers, and […]
HVAC Contractor Midtown East: Commercial Service
Irving Haase & Co., Inc. is a commercial HVAC contractor serving Midtown East, NYC, with over 40 years of experience working alongside General Contractors, Property Managers, and Facility Directors across New York City. We bid plan-and-spec work for tenant renovations, white-box spaces, and luxury multi-family buildings, and we perform in-kind equipment replacements where existing […]
Commercial HVAC Contractor Midtown Manhattan For GCs
Irving Haase & Co., Inc. is a Commercial HVAC Contractor serving Midtown Manhattan with over 40 years of mechanical experience across New York City. We specialize exclusively in plan-and-spec bidding and in-kind equipment replacements for commercial properties, luxury multifamily buildings, and tenant renovation projects throughout Manhattan, Brooklyn, and Queens. Our work is built around […]
Why NYC Needs Commercial HVAC Maintenance Contracts
A commercial HVAC maintenance contract is a formal service agreement between a property owner or manager and an HVAC contractor that defines scheduled inspections, preventive maintenance visits, and response protocols for commercial systems. For NYC property managers overseeing occupied multi-family or commercial buildings, this contract is the operational backbone of mechanical system management. The […]
Commercial HVAC Repair in NYC: When to Call an Expert
Commercial HVAC repair refers to the diagnosis, servicing, and restoration of heating and cooling systems in commercial buildings, including office spaces, retail properties, and multi-family residential buildings. In New York City, where building stock ranges from pre-war mixed-use properties to modern luxury high-rises, keeping these systems operational is a critical responsibility for property managers […]
The Shift to R-454B Refrigerant: What NYC Property Managers Need to Know
R-454B refrigerant is a zeotropic blend of 68.9% R-32 (difluoromethane) and 31.1% R-1234yf (a hydrofluoroolefin), engineered as the primary replacement for R-410A in new HVAC equipment manufactured after January 1, 2025. With a global warming potential (GWP) of 466, R-454B delivers a 78% reduction in climate impact compared to R-410A’s GWP of 2,088, making […]
Commercial HVAC Systems: Upgrading Tenant Spaces in Brooklyn & Queens
Commercial HVAC systems are the integrated heating, ventilation, and air conditioning assemblies that regulate temperature, airflow, and indoor air quality across multi-tenant and commercial building spaces. In tenant renovation and white-box fit-out contexts, these systems must perform reliably across varied occupancy types, floor plate configurations, and existing building infrastructure. Upgrading tenant spaces in Brooklyn […]
HVAC Filtration Upgrades for NYC Commercial Buildings
Filtration HVAC refers to the use of air filters within a commercial HVAC system to remove airborne particles before conditioned air reaches occupied spaces. In commercial buildings across NYC, Brooklyn, and Queens, proper filter selection directly affects tenant comfort, equipment longevity, and indoor air quality compliance. For general contractors, property managers, and facility directors, […]
Understanding GWP in Commercial HVAC: A Guide for NYC Facilities
Global Warming Potential (GWP) in HVAC measures how much heat a refrigerant traps in the atmosphere compared to carbon dioxide over 100 years. For NYC commercial properties, this number now drives equipment selection, regulatory compliance, and long-term capital planning. The refrigerant landscape shifted significantly in 2025 and 2026. The EPA’s rules under the American […]
PTAC Unit Freezing Up in Winter: Causes and Commercial Solutions
A PTAC unit freezing up occurs when ice forms on the evaporator coil, blocking heat transfer and reducing or eliminating the unit’s ability to cool or heat a space. This condition is caused by restricted airflow, low refrigerant levels, dirty coils, or cold ambient temperatures interacting with the unit’s operating settings. In commercial properties […]