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Mas Service

No ratings collected yet Antioch, California

5083 LONE TREE WAY, Antioch, CA 94531, USA

License checked License #498289 40 yrs experience

Verify this license yourself at the California Contractors State License Board (CSLB).

(888) 314-0451
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When the air conditioner quits in an Antioch summer, or the furnace starts short-cycling on a cold morning, homeowners want one thing above all: a technician who shows up, diagnoses the problem clearly, and fixes it right the first time. People in Antioch searching for AC Services are usually weighing a few local options, looking for a company that knows the climate and the homes in the area.

Local market — Antioch

HVAC pros here

40

Have a website

23%

Cooling demand

1,220

Heating demand

2,478

Cooling/heating demand = annual degree days (NOAA). Electricity = state residential average (EIA).

Services Offered

AC Services in Antioch Heating Services in Antioch Ductwork Services in Antioch Heat Pumps in Antioch Furnace Services in Antioch Thermostat Services in Antioch Emergency HVAC in Antioch Maintenance & Tune-up in Antioch

Service Area

Antioch, California All of California

Location

About Mas Service

Mas Service is a California heating and cooling contractor holding contractor license #498289 on the state contractor registry, licensed since 1986. That history means more than four decades working in the trade. The company serves residential and light commercial customers and handles the full range of comfort needs, from AC Services and Heating Services to Ductwork Services, Heat Pumps, Furnace Services, and Thermostat Services. Emergency HVAC calls and scheduled Maintenance & Tune-up visits are also part of the work.

The typical job starts with a inspection of the system, checking refrigerant levels, electrical connections, airflow, filters, and controls. Technicians then explain what they found, what it will cost to repair, and whether replacement makes more sense. Duct leaks, worn blower motors, and outdated thermostats are common issues in older Antioch homes, and addressing them early can lower energy bills and extend equipment life.

Mas Service focuses on Antioch and nearby communities, where local knowledge of weather patterns and housing styles helps guide practical recommendations. If you are comparing local pros, ask about licensing, written estimates, and warranty terms, then choose the team that answers your questions plainly. You can find more Antioch HVAC contractors through HVAC Service Fast.

Frequently Asked Questions

What services does Mas Service offer?
Mas Service offers AC Services, Heating Services, Ductwork Services, Heat Pumps, Furnace Services, Thermostat Services, Emergency HVAC, and Maintenance & Tune-up.
What areas does Mas Service serve?
Mas Service serves Antioch, California, and the surrounding local community.
How do I choose a licensed, insured HVAC contractor in Antioch?
Confirm the contractor's license number on the California contractor registry and ask for proof of liability and workers' compensation insurance. Compare written estimates before you commit.
What should I check before hiring an HVAC pro?
Verify the license, read recent customer reviews, and ask whether the price includes parts, labor, and a warranty. Make sure the scope of work and payment terms are written down.
What are signs it is time to call an HVAC professional?
Call a professional if your system blows warm air in summer, makes grinding or banging noises, cycles on and off frequently, or your energy bills rise without explanation. Uneven temperatures between rooms are also a reason to schedule an inspection.

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