24-Hour Emergency service
ALL Makes and Models
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Why Montclair Chooses Reiner Group
Our credentials aren’t self-described. We’re a Lennox Premier Dealer and a Mitsubishi Electric Diamond Dealer, and we’ve received the Dave Lennox Award for more than 20 consecutive years, a distinction earned by only a select group of contractors nationwide. In 2025, we received the PSE&G Trade Ally Award. More than 1,000 customer reviews across Northern New Jersey reflect what those credentials look like in practice.
Our team’s breadth sets us apart from single-trade contractors. Having licensed engineers, electricians, and plumbers on staff means we can handle complete design-build projects, not just swap equipment. We service all makes and models, so you’re not locked into a brand to get quality work. When something goes wrong at night or on a weekend, our 24/7 emergency line is open for urgent heating and cooling problems. We’re also an active supporter of Habitat for Humanity and local organizations that strengthen Essex County communities.
Equipment Brands We Install & Service
We install and service systems from Lennox, Rheem, Honeywell, and Mitsubishi Electric. These brands represent reliable, high-efficiency equipment, and our dealer relationships mean our technicians are trained on them thoroughly. That said, our service isn’t limited to our partner brands. If you have an existing system from another manufacturer, we can work on it.
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At Reiner Group, your satisfaction is our priority! See for yourself what our customers have to say about working with us.
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"Couldn't recommend more highly."
The level of professionalism is top notch in all respects.
- Robert M. -
"I would highly recommend this company."
They exceeded my expectations with their top notch service, expertise and quality of installation.
- Jonathan S. -
"Very satisfying experience!"
His timing was quite fortunate for me having a normally working system to cool my house just before the second heat wave of 2023.
- Gregory B.
HVAC Services We Provide in Montclair, NJ
Our team covers the full range of heating, cooling, air quality, and commercial HVAC work. Here’s what we offer Montclair customers.
Air Conditioning:
AC repair, installation and replacement, maintenance, ductless mini-split systems, and emergency AC repair.
Heating:
Heater repair, installation and replacement, maintenance, furnace repair and installation, boiler repair and installation, heat pump installation and repair, and emergency heating repair.
Indoor Air Quality:
Air filtration systems, humidifiers, dehumidifiers, and UV lights to improve the air inside your home or building.
Commercial HVAC:
Commercial AC and heating installation and repair, commercial HVAC maintenance, and commercial air quality solutions.
Generators and Maintenance Agreements:
Generator installation and service, plus preventive maintenance agreements for ongoing system care year-round.
Get a Free Estimate From Our Montclair HVAC Team
Whether you need a same-day repair or are planning a system replacement, free estimates are available and our 24/7 emergency line is open when you can’t wait. Reach us by phone or through our online form.
Call (201) 371-7980 to get started.
Serving Northern New Jersey Since 1934
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We Are ReinerOur employees are our most important asset.
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We Are Responsive24-hour emergency service. ALL makes and models.
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We Are ReputableDon’t just take our word for it...We’ve got over 1,000 reviews!
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We Are Reliable100% satisfaction is our guarantee.
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We Are EstablishedWith over 85 years in business, we’ve seen it all!
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We Are Here For YouYour home comfort is our mission – how can we help?
