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Air Conditioning Services
Mitsubishi Electric Mini Split

Air Conditioning Services Near Montclair

More Than 90 Years of Ducted & Ductless Cooling Service

At Reiner Group, we repair, install, replace, and maintain air conditioning systems for homes and businesses throughout Montclair. As a Lennox Premier Dealer and Mitsubishi Electric Diamond Dealer, we work with central air conditioning and ductless mini-split systems suited to properties from different construction eras.

We’ve provided continuous service since 1934, adapting to decades of changes in cooling technology. We offer equipment from Lennox, Rheem, Honeywell, and Mitsubishi Electric, and our technicians service all makes and models.

Call (201) 371-7980 to schedule air conditioning service or request help with an urgent cooling problem.

AC Repair, Replacement, & Maintenance in Montclair

Our residential and commercial services cover problems ranging from poor airflow to complete system failure. With more than 150 employees across the HVAC, engineering, electrical, and plumbing trades, we can assess the equipment and explain practical next steps.

Our core cooling services include:

  • AC repair: We diagnose cooling failures, thermostat problems, frozen evaporator coils, refrigerant leaks, and other equipment issues.
  • AC installation and replacement: We install high-efficiency systems and replace equipment that has become unreliable, costly to repair, or unsuitable for the property.
  • AC maintenance: We inspect and clean components, check operating conditions, and identify concerns that could contribute to a breakdown.
  • Emergency AC repair: We provide 24/7 emergency response for urgent HVAC problems.

Ductless Mini-Splits for Homes Without Existing Ductwork

Ductless mini-split systems provide cooling without conventional ductwork. They can be a practical choice for older homes with finished walls and no existing duct chases, as well as additions or rooms that need separate temperature control.

Individual indoor units let you adjust temperatures by room instead of cooling the entire building uniformly. As a Mitsubishi Electric Diamond Dealer, we offer Mitsubishi Electric ductless equipment alongside central air conditioning options so homeowners can compare both approaches.

Meet Our Team
Our Staff

24-Hour Emergency service

ALL Makes and Models
  • Generac
  • Mitsubishi Electric Mini Split
  • Lennox
  • Lochinvan
  • Rheem
  • Carrier
  • Trane
  • Bradford White Water Heaters
  • York

What to Expect During Your AC Service Visit

When you request service, we schedule a visit to inspect the air conditioning system and discuss the symptoms you’ve noticed. Our technician evaluates the equipment, explains the findings in straightforward terms, and reviews appropriate repair or replacement options.

We give you useful information without pressuring you toward a particular decision. More than 1,000 customer reviews reflect our focus on reliable service and respectful communication. The 2025 PSE&G Trade Ally Award further recognizes our standing as an industry partner.

Technical Knowledge Backed by Industry Recognition

Air conditioning performance depends on more than the outdoor unit. Electrical components, drainage, controls, ductwork, and equipment sizing can all affect operation, so we draw on knowledge from several skilled trades.

Our qualifications and commitments include:

  • Broad technical resources: Our team includes licensed engineers, electricians, plumbers, mechanics, and HVAC technicians.
  • Long-term recognition: We’ve received the Dave Lennox Award for more than 20 consecutive years.
  • Manufacturer credentials: We’re a Lennox Premier Dealer and Mitsubishi Electric Diamond Dealer.
  • Community support: We support Habitat for Humanity and other organizations that strengthen local communities.
we are reputable Customer Testimonials

At Reiner Group, your satisfaction is our priority! See for yourself what our customers have to say about working with us.

  • "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.

AC Installation Permits & Code Requirements

The Township of Montclair administers the State Uniform Construction Code through its Construction Code Enforcing Division. Permit requirements vary based on the equipment, utilities, and scope of the installation, so they should be reviewed before replacement work begins. The township’s ordinance specifically requires a permit from the Building Subcode Official for new conditioning equipment that uses water.

New Jersey generally requires HVAC work covered by the Uniform Construction Code to be completed by an appropriately licensed person. An exception applies to certain work performed by an owner on the single-family home they occupy. Depending on the approved scope, the installation may also require inspections.

When to Repair or Replace Aging AC Equipment

Central air conditioning systems commonly operate for about 15 to 20 years, although maintenance history, installation quality, operating demands, and system design all affect service life. Inverter systems vary compressor output rather than repeatedly switching fully on and off, and they may remain useful longer under suitable conditions.

Repair may make sense when the problem is isolated and the rest of the system remains dependable. Replacement becomes more practical when equipment needs frequent service, uses outdated components, no longer cools effectively, or consumes substantially more energy than a newer system.

Signs of a Refrigerant Leak

Refrigerant absorbs indoor heat and carries it outdoors. A leak can cause weak cooling, longer operating cycles, ice on the evaporator coil, unusual hissing sounds, or rising electricity use. The source must be located and repaired before the system is recharged, so this work typically requires professional service.

How to Reduce Wear Between Tune-Ups

Changing air filters regularly and keeping accessible areas around the equipment clean can limit dirt buildup and unnecessary strain. Routine AC maintenance also allows a technician to inspect coils, refrigerant conditions, electrical components, and drainage before peak cooling demand.

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Why Choose Reiner? What Makes Us Different

Serving Northern New Jersey Since 1934

  • We Are Reiner
    Our employees are our most important asset.
  • We Are Responsive
    24-hour emergency service. ALL makes and models.
  • We Are Reputable
    Don’t just take our word for it...We’ve got over 1,000 reviews!
  • We Are Reliable
    100% satisfaction is our guarantee.
  • We Are Established
    With over 85 years in business, we’ve seen it all!
  • We Are Here For You
    Your home comfort is our mission – how can we help?