HVAC Service & Maintenance
HVAC SERVICE FROM CONTROLLED AIR
When you choose Controlled Air, you'll get unrivaled technical expertise that's matched only by our commitment to excellence in service. Cost-effective maintenance contracts and scrupulous attention to detail are integral parts of our ongoing relationship.
All our customers get:
- Custom maintenance solutions to meet your service needs and minimize repair calls.
- All work performed by technicians who receive direct factory instruction and our own in-house training.
- A designated technician for consistent, seamless service and knowledge of your entire service history.
- Dedicated technical support staff who assists our technicians to assure problems are resolved quickly and efficiently.
- On-call, GPS-dispatched technicians who enter service documentation via laptop.
- Diagnostic capabilities that can pinpoint system irregularities and allow for adjustments remotely.
- Automatic notification systems and alerts that allow us to resolve problems, often before you're aware of an issue.
- Highly skilled OSHA-certified technicians with EPA licenses to handle refrigerants. We follow all guidelines for hazardous waste material disposal.
- Our quality assurance team that checks every job to make sure all systems are operating correctly.
Controlled Air is enrolled with the State of Connecticut Office of Apprenticeship Training, and many of our apprentices have become valued employees upon becoming licensed technicians.
As one of the largest HVAC companies in the area, we have an excellent working relationship with all major manufacturers and are authorized warranty providers. Our service philosophy ensures extended life and maximum efficiency of your equipment.
Controlled Air stands behind every job we do. We offer a lifetime warranty of our workmanship for installation, design and service.
Below are just a few of the major manufacturers we work with.












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Unmatched Expertise
You can trust Controlled Air with all your complex commercial HVAC and energy needs. Contact us today to increase efficiency, cut costs, and minimize emergency repairs.
Service and Preventative Maintenance
Controlled Air can create a custom maintenance solution to meet all your service needs. Our service delivery strategy starts with a thorough preventive maintenance plan designed to minimize repair calls.
Service contracts are necessary regardless of the age of your equipment. You'll benefit even if you have newer or up-to-date equipment. Service contracts reduce downtime due to equipment failure and decrease energy costs from inefficiently running systems.
Your custom service contract ensures you will never pay for services that you don't need and your equipment will always run at peak efficiency. With a custom service contract or routine maintenance package you can be sure that your equipment will be properly maintained on a timely basis.
We assign a dedicated service technician to your account so you are provided consistent and seamless service.
We offer three types of service contracts:
- Planned Maintenance
- Labor Maintenance
- Full Maintenance
Stay covered with a custom-tailored service contract


24 Hour Response, 7 Days a Week
After every installation, we provide complete training for your facilities managers to make sure they are comfortable with every aspect of your system.
If anything unusual occurs, you can access our computerized remote support line to dial into our computer for diagnoses of system problems or interface concerns. We can analyze temperatures, flow and volume by reading your system's sensors on-line and often affect corrections right from our central control.
In addition, our fleet of 32 GPS-equipped service vans are ready to roll any time of day or night through our computerized dispatch system. Maintenance contracts and regular servicing are part of our ongoing relationship.
Call (800) 840-9101
Equipment Rentals Available
Controlled Air has you covered 24 hours a day, 7 days a week — during emergencies, planned construction and scheduled shutdowns.
Call us anytime at (800) 840-9101.
Portable Natural Gas Boiler
Our portable low-pressure, natural gas boiler has 1,000,000 BTU’s and is built inside a trailer for easy transport. Rent the boiler for $1,000 per week or $2,000 per month plus installation and labor.
Koldwave Portable Air Conditioner
The Koldwave King Kompac is a portable windowless cooling unit with water-cooled operation that requires no outside air, so you are guaranteed peak energy efficiency even on the hottest days. All you need is connection to a water supply and a drain. An automatic water-regulating valve shuts off the water flow when the compressor is not running to help ensure maximum efficiency and performance.
The King Kompac models provides 23,000 BTU/HR of cooling capacity, electric temperature controls that can be adjusted by touch pad, a 2-speed fan, a recovery mode for power interruptions, and quiet operation.
Portable Carrier Heating & Cooling Unit
This 10-ton, natural gas heating and electric cooling unit is a temporary solution to all your heating and air conditioning needs. We've installed it on a trailer that can be brought to you. We can wheel this unit next to any building or set the unit on the roof and quickly hook up both the supply and return ducts.
The unit has office, retail, industrial, and construction applications and is quiet, highly efficient and reliable. It is an environmentally designed unit which consumes less fossil fuels and reduces greenhouse gas emissions. The control system is readily adaptabl
e to all conventional and programmable thermostats. In addition, the unit can be integrated into monitor control systems if required.
The unit assists in improving indoor air. Sloped condensate pans eliminate possible biological growth and a face-split indoor coil design removes additional moisture from the air. It recirculates with minimal outside air intake and is completely adjustable. Contact us for pricing.



OUR CAPABILITIES
SEE EXAMPLES OF OUR WORK
Controlled Air has been installing, repairing and fixing HVAC in commercial, industrial, government, and healthcare organizations since 1980.
Visit our online customer showcase to see our completed projects.