• Residential
  • Residential
  • Residential


For nearly  30 years Tempco has been the most dependable residential heating and air conditioning company in Nassau County, Suffolk County and the Greater New York Metro area. As a family-run business, Tempco offers a personal touch as we make sure we meet our customers’ highest expectations on every job, no matter how small or how big.

Tempco’s technicians have decades of experience servicing residential heating and air conditioning systems across Long Island and New York City. We also design and install custom heating and air conditioning systems to meet any need.

Air Conditioning and Heating Service 

Our experienced technicians have the knowledge to diagnose and repair just about any problem with your air conditioning system. Tempco services all home central air systems, ductless “mini-split” systems, humidifiers and air purifiers, along with all brands of furnaces and boilers to meet every need. We install, replace and service equipment from Lennox, Ruud, Rheem, Viessmann, Weil Mclain and Peerless among others. Tempco also services and installs panel and steam humidifiers to ensure your home is always as comfortable as possible.

Preventative Maintenance 

Tempco offers extensive preventative maintenance agreements so your HVAC system will always be running at its best. Our technicians will change your filters, clear out drain lines, check freon levels and make sure your system is ready to go for the summer. In the fall, we’ll check your heating system to make sure you’ll stay warm all winter. With a Tempco Advantage service contract, you’ll get preferential treatment, free diagnostics, expert technicians and most importantly, peace of mind.

Indoor Air Quality

Indoor air can be up to five times more polluted than the air outdoors. To make sure your home is always safe, Tempco offers a wide array of options to make sure the air in your home is clean and comfortable. We service and install a full line of high efficiency whole-house air filters, electronic air cleaners, ventilation systems and humidifiers from Honeywell, Lennox and Aprilaire. To ensure the best indoor air quality and to protect your HVAC system, it is recommended that you change your air filters at the start of each heating and cooling season. 


With the PSEG Cool Homes program, you may be eligible for up to $1,000 in rebates on a new central air conditioning system for your home. Call now for a free estimate. 

Installations and New Construction 

Tempco has been installing whole house central air conditioning systems for nearly 30 years. Whether it be a small 2-ton system for a two-bedroom home in Glen Head, or multiple 5-ton systems for a mansion in Old Brookville, Tempco works with both contractors and homeowners to make sure the job is done right and meets our customers’ highest expectations. We service and install a full range of systems and are an authorized distributor of Lennox, Rheem, Ruud, Carrier, York and Trane systems.

Generator Installations and Service 

Tempco is a factory-authorized Generac and Honeywell standby generator dealer with the knowledge and experience to make sure all your backup power needs are met. Tempco installs Generac and Honeywell generators for both whole house protection or selected circuit. With a Generac/Honeywell generator from Tempco, you’ll never have to worry about losing power again.

A standby generator is permanently installed into your home’s natural gas line and and hooks up to your main electrical meter. The Generac smart switch automatically detects a power failure and responds by switching on the generator and sending power back to your home in seconds. If you don’t have natural gas, we work with local propane companies to install up to 1,000-gallon, in-ground tanks to provide fuel for your generator.

 Tempco is also a certified service dealer for Generac. We offer yearly service agreements to maintain your generator so it is always working at top performance. We have the knowledge to diagnose and repair any problems with your generator. 

Custom Ductwork 

Tempco has a full-service, in-house sheet metal shop where all our ductwork is customized. Because we don’t rely on subcontractors,  you save time and money on new installations. Tempco makes ductwork ready to order for all air conditioning, heating and exhaust systems.