HVAC manifold gauge set with red and blue pressure dials

JMC HVAC Inc · Fontana, California

Pressurerunning high?

We’ll bring it down.

Commercial and residential heating and cooling, serviced the way it should be: maintenance that prevents breakdowns, and repairs that actually last.

CA Lic. 1110421 · Mon to Sat, 8am to 5pm · jmchvacinc@icloud.com

1110421CA license
Mon–Sat8am to 5pm
2Commercial + residential
FontanaBased, serving surrounds

What we service

Keep the pressure where it belongs.

From seasonal maintenance to full repairs, for homes and businesses across the Fontana area.

Prevent

Maintenance Plans

Scheduled tune-ups that catch small problems before they become no-cooling emergencies. Cleaner coils, tighter connections, lower bills.

Repair

AC Repair

Weak airflow, warm air, strange noises, frozen lines. We diagnose the real cause and fix it right the first time.

Repair

Heating Repair

Furnaces and heat pumps that will not start, will not stay lit, or will not keep up. Serviced before the cold finds you.

Install

System Installation

Right-sized equipment, installed to manufacturer spec. No oversized units short-cycling through summer.

Commercial

Commercial Service

Rooftop units, split systems, and scheduled maintenance for businesses that cannot afford downtime.

Both

Diagnostics

Manifold gauges, meters, and experience. We find the fault instead of guessing at it.

The trade, up close

Tools of the trade.

Manifold gauge set used for HVAC diagnostics
Manifold gauges
Outdoor condenser unit at dusk
Condenser units
Modern thermostat on a dark wall
Thermostats

How it works

From call to cool.

01 / call

You call

Tell us what your system is doing. Most visits are scheduled within days, not weeks.

02 / diagnose

We test

Pressures, temperatures, electrical. The gauges tell us what is wrong before we touch a wrench.

03 / repair

We fix

Straightforward pricing, explained before the work starts. No upsells, no mystery parts.

04 / maintain

You relax

Optional maintenance keeps it running. Your system stays out of the red zone.

Based in Fontana, serving the surrounding areas.

JMC HVAC Inc is located in Fontana, California, and services all surrounding areas. Call to confirm your address.

Hours

Monday to Friday8am to 5pm
Saturday8am to 5pm
SundayClosed
Emailjmchvacinc@icloud.com

Straight answers

Before the gauges come out.

Yes. We handle residential systems and commercial equipment, including scheduled maintenance for businesses.

We are located in Fontana, California, and service all surrounding areas. Call (840) 217-3764 to confirm yours.

Yes. Regular maintenance keeps your system efficient and catches failures early. Ask us about scheduling when you call.

Yes. JMC HVAC Inc holds California license 1110421.

Call (840) 217-3764, Monday to Saturday 8am to 5pm, or email jmchvacinc@icloud.com any time.

Feeling the pressure? Let’s talk.

One call to JMC HVAC Inc and your system is back in the green. Maintenance, repair, and installation across Fontana and the surrounding areas.

Call (840) 217-3764