For over 130 years, McCormick-Allum has been the cornerstone of heating and cooling excellence across Western MA. As the oldest HVAC company in Massachusetts, we have built a legacy of trust, quality...
For over 130 years, McCormick-Allum has been the cornerstone of heating and cooling excellence across Western MA. As the oldest HVAC company in Massachusetts, we have built a legacy of trust, quality craftsmanship, and unwavering reliability. When you choose us, you are not just getting a service call; you are partnering with a team that treats your home or business like our own.Our team of highly trained tradespeople includes refrigeration technicians, sheet-metal workers, pipe fitters, plumbers, electricians, designers, and engineers—all working in-house to ensure meticulous attention to detail. We are proud to be part of the PremiStar family, which allows us to bring nationwide best pract...
Professional solutions tailored to your specific needs — delivered with expertise and care.
01
Heating Installation & Repair
When the cold settles over Western MA, you need a heating system you can depend on. McCormick-Allum specializes in complete heating solutions, from high-efficiency furnace installation to boiler repair and heat pump services. Our NATE-certified technicians work with all major brands, including Carrier, Lennox, Trane, and York, ensuring you get the perfect match for your home or commercial building.We begin every project with a comprehensive load calculation and on-site assessment to determine th...
When the cold settles over Western MA, you need a heating system you can depend on. McCormick-Allum specializes in complete heating solutions, from high-efficiency furnace installation to boiler repair and heat pump services. Our NATE-certified technicians work with all major brands, including Carrier, Lennox, Trane, and York, ensuring you get the perfect match for your home or commercial building.
We begin every project with a comprehensive load calculation and on-site assessment to determine the most energy-efficient system for your space. Our installation process is meticulous, involving proper venting, ductwork sealing, and thermostat integration. For repairs, we offer 24/7 emergency service—if your heat fails at 2 AM, we’ll be there. Regular maintenance, like annual furnace tune-ups, is also available to extend your system’s life and lower utility bills. Commercial clients benefit from our multi-unit expertise and minimal downtime guarantees. Trust the oldest HVAC company in Massachusetts to keep you warm all winter long.
02
Air Conditioning Installation & Repair
Beat the Western MA heat with reliable air conditioning solutions from McCormick-Allum. We provide full-service AC installation, repair, and maintenance for both residential and commercial properties. Whether you need a central air conditioner, ductless mini-split, or a rooftop unit for your business, our team delivers expert craftsmanship.Our process starts with a free consultation to size your cooling needs correctly—oversized units short-cycle, while undersized ones struggle. We then present...
Beat the Western MA heat with reliable air conditioning solutions from McCormick-Allum. We provide full-service AC installation, repair, and maintenance for both residential and commercial properties. Whether you need a central air conditioner, ductless mini-split, or a rooftop unit for your business, our team delivers expert craftsmanship.
Our process starts with a free consultation to size your cooling needs correctly—oversized units short-cycle, while undersized ones struggle. We then present options from top manufacturers, focusing on SEER ratings and environmentally friendly refrigerants. During installation, our sheet-metal workers fabricate custom ductwork if needed, and our electricians handle all wiring to code. For repairs, we diagnose issues quickly using advanced thermal imaging and pressure testing. We also offer seasonal AC tune-ups to prevent breakdowns. Commercial clients appreciate our ability to service complex building automation systems and our 24/7 emergency repair guarantee. Stay cool and comfortable with McCormick-Allum.
03
Commercial HVAC Services
Your commercial facility in Western MA requires robust, efficient HVAC systems to ensure productivity, safety, and comfort. McCormick-Allum is the trusted partner for office buildings, schools, municipal facilities, industrial sites, and retail spaces. As a member of the PremiStar network, we bring nationwide expertise to local commercial projects, from design-build to ongoing maintenance.Our commercial services include rooftop unit installation and repair, VRF system design, building automation...
Your commercial facility in Western MA requires robust, efficient HVAC systems to ensure productivity, safety, and comfort. McCormick-Allum is the trusted partner for office buildings, schools, municipal facilities, industrial sites, and retail spaces. As a member of the PremiStar network, we bring nationwide expertise to local commercial projects, from design-build to ongoing maintenance.
Our commercial services include rooftop unit installation and repair, VRF system design, building automation controls, indoor air quality solutions, and energy audits. We understand that downtime costs money, which is why we offer priority service agreements and 24/7 emergency repair. Our in-house team of pipe fitters, sheet-metal workers, and electricians work seamlessly to complete projects on time and within budget. We also help facility managers navigate compliance with ASHRAE standards and local energy codes. Whether you need a full system replacement or proactive maintenance for a multi-story building, we deliver reliability and efficiency. Contact us to learn about our preventative maintenance plans tailored to your business.
04
HVAC contractor in Western, MA
McCormick-Allum has been heating and cooling homes and businesses across Western MA for more than 130 years, which makes us the oldest HVAC company in Massachusetts. Our crew includes refrigeration technicians, sheet-metal workers, pipe fitters, plumbers, electricians, designers, and engineers, and all of them work in-house, so your project is handled by one team from first visit to final check. We treat every job like it is in our own building. Whether you need a new system, a repair, or routin...
McCormick-Allum has been heating and cooling homes and businesses across Western MA for more than 130 years, which makes us the oldest HVAC company in Massachusetts. Our crew includes refrigeration technicians, sheet-metal workers, pipe fitters, plumbers, electricians, designers, and engineers, and all of them work in-house, so your project is handled by one team from first visit to final check. We treat every job like it is in our own building. Whether you need a new system, a repair, or routine care, we bring the same attention to detail, and we are available around the clock for emergencies.
05
Heating repair
When your heat stops working, we send trained technicians to find the cause and get your system running again. We service furnaces, boilers, and heat pumps from all the major brands, and our NATE-certified technicians know how to work on each one. Repairs are available 24/7, so a failure at 2 AM gets the same response as one at noon. We explain what needs fixing and what it will cost before we start, and we aim to restore warmth quickly for both homes and commercial buildings.
06
Air conditioning installation in Western, MA
Installing air conditioning starts with sizing, because a unit that is too big cycles on and off without removing humidity, and one that is too small never keeps up on a hot day. We begin with a free consultation to measure your cooling needs, then present options from leading manufacturers with attention to efficiency ratings and refrigerant choices. Our sheet-metal workers can fabricate custom ductwork when your home needs it, and our electricians handle the wiring to code. You can choose a ce...
Installing air conditioning starts with sizing, because a unit that is too big cycles on and off without removing humidity, and one that is too small never keeps up on a hot day. We begin with a free consultation to measure your cooling needs, then present options from leading manufacturers with attention to efficiency ratings and refrigerant choices. Our sheet-metal workers can fabricate custom ductwork when your home needs it, and our electricians handle the wiring to code. You can choose a central system, a ductless mini-split, or a rooftop unit for a business.
07
Furnace tune-up in Western, MA
An annual furnace tune-up is one of the simplest ways to prevent a cold-weather breakdown. Our technician inspects and cleans the burners, checks the heat exchanger for safety, tests ignition and controls, and confirms the system is operating efficiently. Catching small problems now usually costs far less than an emergency call in January. A tune-up also helps your furnace last longer and can lower your heating bills. Schedule yours before the cold arrives so your home stays comfortable all seas...
An annual furnace tune-up is one of the simplest ways to prevent a cold-weather breakdown. Our technician inspects and cleans the burners, checks the heat exchanger for safety, tests ignition and controls, and confirms the system is operating efficiently. Catching small problems now usually costs far less than an emergency call in January. A tune-up also helps your furnace last longer and can lower your heating bills. Schedule yours before the cold arrives so your home stays comfortable all season.
08
Commercial HVAC services in Western, MA
Offices, schools, municipal buildings, industrial sites, and retail spaces all depend on steady heating and cooling, and downtime costs money. We provide design-build work, rooftop unit installation and repair, VRF system design, building automation controls, indoor air quality solutions, and energy audits. As part of the PremiStar network, we bring broad experience to local projects, and we can help facility managers meet ASHRAE standards and local energy codes. Priority service agreements and...
Offices, schools, municipal buildings, industrial sites, and retail spaces all depend on steady heating and cooling, and downtime costs money. We provide design-build work, rooftop unit installation and repair, VRF system design, building automation controls, indoor air quality solutions, and energy audits. As part of the PremiStar network, we bring broad experience to local projects, and we can help facility managers meet ASHRAE standards and local energy codes. Priority service agreements and 24/7 emergency repair are available. Contact us to talk about a preventive maintenance plan for your building.
09
Residential heating and cooling in Western, MA
Your home needs heating through the winter and cooling through the summer, and we handle both with one team. We install and repair furnaces, boilers, heat pumps, central air conditioners, and ductless mini-splits, and we start every project by sizing the equipment to your house so it runs efficiently and comfortably. Our technicians work with all major brands and can match a system to your budget and layout. Annual maintenance helps each system last longer and keeps energy use in check. We are r...
Your home needs heating through the winter and cooling through the summer, and we handle both with one team. We install and repair furnaces, boilers, heat pumps, central air conditioners, and ductless mini-splits, and we start every project by sizing the equipment to your house so it runs efficiently and comfortably. Our technicians work with all major brands and can match a system to your budget and layout. Annual maintenance helps each system last longer and keeps energy use in check. We are ready to help whenever your comfort is at stake.
10
Ductwork installation in Western, MA
Good ductwork delivers conditioned air evenly to every room, and poor ducts waste energy and leave some rooms too hot or too cold. Our sheet-metal workers design and fabricate custom ductwork to fit your home or building, seal joints to limit leaks, and connect the system to your furnace or air handler. We plan the layout around your structure to keep runs short and airflow strong. Whether you are adding ducts to a new addition or replacing an old system, we build it to last and to meet code.
11
24/7 AC repair
Air conditioners fail at the worst times, during heat waves and holiday weekends, and our 24/7 emergency repair line is staffed for those moments. When you call, a technician diagnoses the problem using pressure testing and thermal imaging, then explains the fix and the cost before work begins. We repair residential systems and complex commercial equipment alike. Our goal is to get your space cool again quickly and to resolve the underlying issue so it does not return.
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For over 130 years, McCormick-Allum has been the cornerstone of heating and cooling excellence across Western MA. As the oldest HVAC company in Massachusetts, we have built a legacy of trust, quality craftsmanship, and unwavering reliability. When you choose us, you are not just getting a service call; you are partnering with a team that treats your home or business like our own.
Our team of highly trained tradespeople includes refrigeration technicians, sheet-metal workers, pipe fitters, plumbers, electricians, designers, and engineers—all working in-house to ensure meticulous attention to detail. We are proud to be part of the PremiStar family, which allows us to bring nationwide best practices to your local project, ensuring cost-effective, energy-efficient, and healthy environments. Whether it is a furnace breakdown in the middle of winter or a summer AC emergency, our 24/7 emergency service is just a phone call away. Experience the gold standard of HVAC care in Western MA with McCormick-Allum.
