What’s the Value of Regular Maintenance?
May 7, 2023
Your Trusted Local HVAC Contractor in Covina & Surrounding Areas
At Sinclair Air Systems, we’re a family-owned HVAC contractor proudly serving homeowners and businesses across Los Angeles County and the San Gabriel Valley. For over 30 years, our licensed team has specialized in HVAC installation, mini split systems, AC repair, and preventive maintenance, always treating our customers like family.
When you choose Sinclair, you don’t just get reliable heating and cooling service—you get a team that values trust, transparency, and comfort. That’s why so many Covina, La Verne, San Dimas, and Glendora families count on us for year-round HVAC solutions.
Looking for a trustworthy HVAC contractor who stands behind their work? Our experienced technicians provide AC and furnace installation, ductless mini split installs, indoor air quality upgrades, and HVAC maintenance plans designed to keep your system running at its best.
With decades of hands-on experience, we can quickly diagnose and repair HVAC issues while offering honest recommendations—never high-pressure sales. From small tune-ups to complete system replacements, Sinclair Air Systems delivers dependable service at fair prices, giving you peace of mind and long-lasting comfort in your home.
Sinclair Air Systems specializes in AC Installs, ensuring optimal comfort and air quality in your home.
We excel in in commercial HVAC services, meeting the unique needs of businesses and commercial spaces.
Get our Preventive Maintenance for worry-free HVAC care. Stay cool and save money with upkeep.
Sinclair Air Systems offers a variety of air conditioning services, including installation, maintenance, and repair of air conditioning units for residential and commercial customers.
It is recommended to have your air conditioning unit serviced at least once a year to ensure it is operating at peak performance and to catch any potential issues before they become major problems.
If your air conditioning unit is not cooling properly, it may need to be serviced or repaired. Contact Sinclair Air Systems to schedule an appointment with one of our technicians.
The installation time for a new air conditioning unit can vary depending on the size and complexity of the installation. However, on average, it can take anywhere from a few hours to a full 2 days.
The cost of air conditioning service can vary depending on the specific service needed and the size and complexity of the unit. Contact Sinclair Air Systems to request a quote for your specific needs.
If you have an emergency air conditioning issue, such as a complete system failure or a major leak, contact Sinclair Air Systems immediately. We offer 24/7 emergency service to ensure your comfort and safety.
A SEER rating, or Seasonal Energy Efficiency Ratio, is a measurement used to gauge how energy-efficient an air conditioning unit is. When you’re considering an AC install, the SEER rating tells you how much cooling output you get per unit of energy consumed. In simple terms, a higher SEER rating means that the AC unit is more efficient, which can lead to lower electricity bills.
Starting from January 1, 2023, new AC installs must have a minimum SEER of 15. A 16 SEER unit is more energy-efficient than a 14 SEER. This means it cools the same area but uses less electricity, resulting in lower energy bills. While a 16 SEER unit may cost more upfront, it can offer long-term savings.