Cooling Services on Long Island, NY
Stay comfortable through the warmest months with NJM’s licensed and professional cooling services. From AC installations to system repairs, maintenance, and advanced cooling solutions, we deliver reliable service across Nassau and Suffolk County.
Available 24/7 for Emergency Cooling Service
Trusted Cooling Experts for Nassau and Suffolk County
With over 33 years of experience, NJM provides dependable cooling solutions for residential and commercial properties throughout Long Island.
Professional installation and replacement of central air systems designed to maximize cooling efficiency, airflow, and home comfort during Long Island’s summers.
Fast, reliable AC repairs and seasonal maintenance services to improve system performance, extend equipment life, and prevent unexpected breakdowns.
Energy-efficient ductless cooling options ideal for additions, renovated spaces, or homes without existing ductwork — installed cleanly and professionally.
Customized cooling solutions for retail spaces, offices, restaurants, and commercial buildings, including rooftop units, split systems, and performance optimization.
Expert Cooling Solutions Backed
by Over 33 Years of Experience
Why Long Island Homeowners Trust NJM for Cooling Services
With certified technicians and decades of hands-on experience, NJM delivers reliable and efficient cooling services for homes and commercial properties.
Certified professionals handling every inspection, installation, and repair safely and correctly.
Highly trained specialists equipped to diagnose, install, and repair all major cooling systems and AC brands.
Modern cooling options designed to reduce energy use, improve airflow, and lower long-term utility costs.
Whether it's a burst pipe or a clogged drain, our team is ready to assist, any time of day or night.
Serving Long Island since 1991 with proven reliability and technical expertise.
Upfront quotes, no hidden fees, and clear explanations for every service.
AC System Efficiency Testing
Assessment of cooling output, airflow, thermostat accuracy, and energy efficiency.
FixtureAirflow & Duct Performance Analysis& Appliance Safety Checks
Testing for duct leaks, blockages, or pressure issues that reduce system efficiency.
Refrigerant Level & Leak Evaluation
Checking refrigerant pressure, detecting leaks, and ensuring safe, proper operation.
Coil & Filter Condition AssessmentShut-Off Valve Testing
Evaluation of condenser and evaporator coils, filters, and ventilation paths.
Electrical Component Safety Review
Inspection of motors, wiring, capacitors, and controls to prevent failures and hazards.
Code & Compliance Review
Ensuring all cooling equipment meets Nassau & Suffolk County HVAC standards.
Trusted Cooling Expertise for Long Island Homes & Businesses
Our Cooling Safety & Inspection Services Include:
NJM provides advanced cooling inspections, performance testing, and safety evaluations to keep your AC system running efficiently and reliably.
Find Cooling Services Near You!
Service Area Links:
- Long Island
- Nassau County
- Suffolk County
What Our Long Island Clients Are Saying...
Kris
I couldn’t recommend Neil enough! From start to finish him and his team were professional, efficient and experienced. We had a job pulling up rocks and putting top soil down which I know can be a tedious job. We appreciate the work and look
Evelyn Powers
We had an ongoing issue with clogs. My daughter woke up to flooding in her bedroom from her toilet, which was not fun! This was our first time having NJM in our home. Neil was knowledgeable and gave us several options. we chose to have him use the camera to get to the root of the problem. He was able to pinpoint several issues and was able to fix clog and clean out the pipes. Neil and his crew were very professional,
Irene Cheung
I contacted NJM Mechanical because I didn’t have hot water anywhere in my house. Neil was able to diagnose the issue and get to work. My navien tankless water heater is only a year old and still under warranty. Instead of waiting on Navien to send the part so the issue can be corrected, Neil went out, found the part, purchased it,
William Lo
Great experience. Neil came out and took the time to explain everything thoroughly. He was able to fix all the errors on our Navien and have it back up and running. Following up a week later. Neil and Mike came out to redo the Navien system for proper instillation.
Unfortunatley, after there was a gas leak with our Navien system. Neil was able to get
James Farnworth
Neil from NJM was able to get my ac system up and running when others could not. He was honest with me right from the beginning and all costs were discussed before repairs began. Additionally, Neil spent time explaining to me how my system operates and the things I could do to help it run at peak performance. It was quite refreshing to experience a service technician who demonstrated the uppermost
Raul Chardon
Honest professional full of knowledge not BS. Takes pride in his craft and is a master of it.