Commercial HVAC Installation & Repair in Taunton & Raynham, MA

If you need a reliable commercial HVAC contractor, look no further than Cotti-Johnson HVAC, Inc. Whether you require commercial HVAC repair or installation, we proudly serve Taunton & Raynham, MA, and the surrounding South Shore towns.
HVAC, Electrical & Plumbing Services

Serving Taunton and Surrounding Areas Since 1948

Choose Boston’s Home Team!

Keeping Your Business Comfortable Is Our Priority

Over 75 Years In Business

We Have The Experience You Can Trust.

Cotti-Johnson HVAC, Inc. is the top-rated commercial HVAC contractor in the Taunton-Raynham metro area. With over 75 years of experience, there’s nothing our technicians can’t handle. Plus, as a family-owned and operated company, you get the best customer service possible and a 100% satisfaction guarantee.

Expert Commercial HVAC Services in Taunton and Raynham Massachusetts

Cotti-Johnson HVAC, Inc. is the only commercial HVAC contractor you’ll ever need in Taunton & Raynham, MA, because we do everything. You can count on us for:

  • Commercial AC installation
  • Commercial AC repair
  • Commercial heater installation
  • Commercial heater repair
  • Industrial furnace repair
  • Rooftop HVAC unit service
  • AC condenser replacement
  • AC tune-up
  • Air handler services
  • Evaporator coil services
  • Heat pump installation
  • Ductless mini split AC systems
  • AC filter replacements
  • Refrigerant leak repair

We can do it all! Call us to handle your AC dehumidifier needs as well!

Taunton & Raynham Commercial Air Conditioner Repair & Installation

If you run a business, you know how important it is to have a reliable commercial AC service you can call, especially during a hot summer. Cotti-Johnson HVAC, Inc. is the most trusted industrial AC service in Taunton and Raynham, MA.

Our expert technicians are trained and equipped to handle any AC issue, including:

  • Rooftop unit repairs
  • Ductless mini split installation and service
  • Chillers and cooling towers
  • Central AC systems
  • Refrigerant leaks
  • Electrical control issues
  • Clogged or dirty filters and coils
  • Thermostat problems

Rest assured, our team uses the latest technology for all your industrial air conditioner service needs.

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Call to Schedule Service 508-301-1831

Expert Industrial Heater Repair & Installation in the Taunton-Rayham Metro Area

When cold weather hits this winter, you’ll be glad to have a company you can rely on for commercial heater repair to keep your space comfortable for tenants, employees, and customers. That’s where Cotti-Johnson HVAC, Inc. comes in.

We’re the premier commercial heating contractor in the Taunton-Raynham metro area. Our commercial heater services include:

  • Heater repairs and maintenance
  • Heater installations
  • Furnace installations
  • Furnace repair
  • Boilers
  • Duct cleaning

Contact us to learn more about our indoor air quality service and get a cleaner, healthier indoor environment.

Commercial Indoor Air Quality Services in Greater Taunton-Raynham, MA

At Cotti-Johnson HVAC, Inc., we understand the importance of indoor air quality for businesses and other commercial properties. That’s why our team offers a comprehensive list of indoor air quality services to keep everyone healthy. Call us for:

  • Smart thermostat installation and repair
  • Dehumidifier installation
  • Humidifier installation
  • UV air sanitizers
  • Ionization services
  • Ductwork repair
  • Duct cleaning
Commercial HVAC Services2026-08-19T13:51:29+00:00
Our Special Offers

Here are some of our current limited time offers, call for additional details. All specials are subject to availability, some terms apply, some terms based on credit approval. Offers cannot be combined.

FAQ's
Is emergency commercial HVAC service more expensive in Taunton, MA?
Emergency commercial HVAC calls typically cost more than scheduled service, often $200 to $500 for after-hours diagnosis, since a technician has to respond outside normal business hours. Cotti Johnson HVAC offers 24/7 emergency commercial service for businesses in Taunton, MA so a rooftop unit failure does not shut down operations for days while waiting on a repair.
What is the best zoned HVAC system for a commercial building?
The best zoned system for a commercial building depends on layout, but variable air volume systems and multi-zone rooftop units are common choices because they let different areas, like offices versus a warehouse, run at different temperatures. Cotti Johnson HVAC designs zoning solutions for commercial properties in Taunton, Massachusetts based on how each space is actually used.
Can I fix my commercial HVAC system myself?
Commercial HVAC repairs are not a do-it-yourself task because rooftop units and larger systems involve higher voltages, larger refrigerant charges, and code requirements that need a licensed commercial technician. Cotti Johnson HVAC services and repairs commercial systems for businesses in Taunton, Massachusetts, since an unqualified repair attempt can void equipment warranties and create safety hazards.
How does a business get zoned HVAC installed in Taunton, MA?
Getting a zoned system installed starts with a load calculation and a walk-through of how each area of the building is used, followed by installing zone dampers, thermostats, and a control panel tied to the main system. Cotti Johnson HVAC handles this full process for commercial clients in Taunton, Massachusetts from initial assessment through final setup.
What is zoning in a commercial HVAC system?
Zoning divides a building into 2 or more separate areas that can each be heated or cooled independently, using dampers and multiple thermostats connected to one or more central units. Cotti Johnson HVAC installs zoned systems for commercial properties in Taunton, Massachusetts so a busy retail floor and a quiet back office can each stay comfortable without wasting energy.
What does commercial HVAC service typically include for Plymouth County businesses?
Commercial HVAC service typically includes rooftop unit maintenance, ductwork inspection, filter changes, refrigerant checks, and repairs to larger-capacity equipment than what is found in a typical home. Cotti Johnson HVAC provides commercial maintenance contracts for businesses across Plymouth County to keep equipment running reliably and avoid unexpected downtime.
How often should a commercial HVAC system be serviced?
Most commercial HVAC systems should be professionally serviced at least twice a year, once before the cooling season and once before the heating season, though buildings with heavy use may need quarterly visits. Cotti Johnson HVAC sets up seasonal maintenance schedules for business owners in Taunton, Massachusetts to reduce the risk of a costly mid-season breakdown.
Is commercial HVAC work more complex than residential work?
Commercial HVAC work is generally more complex than residential work because the equipment is larger, often rooftop-mounted, and systems frequently include multiple zones, controls, and higher electrical demands. Cotti Johnson HVAC trains technicians in both residential and commercial systems to properly service business properties throughout Taunton, Massachusetts.

When you need commercial HVAC services in Taunton and Raynham, MA, the choice is clear. Whether it’s commercial air conditioner installations or heater repairs, call Cotti-Johnson HVAC, Inc. at 508-301-1831.