Frequently asked questions

We're based in Visalia, CA (MG's started in Tulare in 2011) and serve Tulare, Kings, Fresno, and Kern Counties, including Visalia, Hanford, Dinuba, Cutler, Orosi, Porterville, Exeter, Lindsay, Reedley, Kingsburg, Selma, Delano, and surrounding communities.

Yes. MG's Air Conditioning & Heating is a California-licensed HVAC contractor (CSLB License #960470) and carries all required insurance and bonding. You can verify our license on the CSLB website.

During summer we run same-day and next-day calls across Tulare County and usually within 24–48 hours for Kings, Fresno and Kern Counties. No-cool emergencies with seniors, infants, or health concerns in the home go to the front of the line.

Yes. Estimates for new system installations and replacements are always free and come as a written quote with no obligation. Repair calls include a flat diagnostic fee that's credited toward the repair.

Unrestricted airflow is the key. Filters, coils, and heat exchangers need to be clear of Valley dust and debris. We recommend a professional check twice a year, spring for cooling and fall for heating, and changing your filter every 30–60 days during summer.

Most manufacturers suggest 12–20 years. If your system has broken down several times, your bills keep climbing, or a repair would cost more than about a third of a new system, replacement usually makes more financial sense. We'll give you an honest assessment either way.

Sí. Ofrecemos servicio completo en español. Llámenos al (559) 623-2210.

All of them. Carrier, Trane, Lennox, Goodman, Rheem, Ruud, York, Day & Night, Bryant, American Standard, Amana, Daikin, Mitsubishi, and more.

Sometimes. We'll tell you honestly which ones are real right now. The federal 25C tax credit expired December 31, 2025, and most TECH Clean California funds are waitlisted. What's still available: PG&E rebates (Golden State Rebates), SCE Marketplace rebates, and the Valley Air District's heat-pump change-out program (up to $3,500 in Tulare/Kings Counties, $5,000 in Fresno/Kern) if you retire a wood stove or fireplace. Your address decides which utility applies.

Yes: rooftop package units, split systems and mini-splits for shops, offices, restaurants, and ag facilities, plus maintenance contracts with priority response.

During summer we run same-day and next-day repair calls across Tulare County, and usually within 24–48 hours for Kings, Fresno, and Kern Counties. Call (559) 623-2210 and we'll give you an honest window.

We'll tell you the diagnostic fee up front when you call, and you'll get a flat price for the repair before any work starts. No surprises on the invoice.

Our rule of thumb: if the unit is over 12–15 years old and the repair costs more than about a third of a new system, replacement usually wins on energy bills and reliability. We'll run the numbers with you on site.

Most full central-air replacements in the Central Valley land between $7,000 and $15,000 depending on size, efficiency, and whether ductwork needs work. Heat pumps can qualify for PG&E or SCE rebates and, if you're retiring a wood stove, up to $3,500–$5,000 from the Valley Air District. We'll quote your exact house for free.

A straightforward changeout is usually one day. Conversions from a swamp cooler or jobs that include new ductwork can take two to three days.

We install and service all major brands and recommend what fits your home and budget best rather than pushing one label.

Common causes are a dirty filter tripping the limit switch, a failed igniter or flame sensor, or a thermostat fan setting stuck on. We'll diagnose it quickly and give you a flat repair price.

Yes. Our mild winters are ideal for heat pumps. They cool in summer, heat efficiently in winter, and can qualify for utility and Valley Air District incentives.

Twice a year: cooling in spring (March–May) and heating in fall. Because of Valley dust, change your filter every 30–60 days in summer.

Especially then. A tune-up is when we catch a weak capacitor or low charge before it becomes a compressor failure in July.

Yes. Modern heat pumps are rated to cool efficiently well above Valley summer highs, and inverter models actually run more efficiently at partial load than a standard AC.

As of 2026: PG&E rebates via Golden State Rebates, SCE Marketplace rebates, and the San Joaquin Valley Air District's Fireplace & Woodstove Change-Out (up to $3,500 in Tulare/Kings, $5,000 in Fresno/Kern) when you retire a wood-burning device. The federal 25C credit expired at the end of 2025. See our Rebates page for current status.

Rooms that never cool, dusty registers, high bills, and a system that runs non-stop are the classic signs. We can measure leakage directly and show you the number.

Yes. We set up quarterly or semi-annual maintenance with filter changes, coil cleaning, and logged inspections on a schedule that fits your building.

Our office hours are Monday–Saturday 8–5, and we keep a 24/7 emergency line for no-cool calls. During heat waves we extend hours and prioritize homes with kids, seniors or health concerns.