Spec Construction Co Inc

No ratings collected yet Ontario, California

115 WEST MAIN ST, Ontario, CA 91762, USA

License checked License #419626 44 yrs experience

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

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When a home in Ontario loses cool air in July or goes without heat on a cold morning, people start searching for an HVAC contractor near me that they can trust to answer the phone and fix the problem the first time. Spec Construction Co Inc serves homeowners across Ontario, California, handling everything from routine cooling checks to urgent breakdowns.

Local market — Ontario

HVAC pros here

Have a website

17%

Cooling demand

1,709

Heating demand

1,537

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

Services Offered

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

Service Area

Ontario, California All of California

Location

About Spec Construction Co Inc

Spec Construction Co Inc holds California state contractor license #419626 and has been licensed since 1982, bringing more than 44 years of experience to its work. The company provides AC services, heating services, furnace services, and heat pump installation and repair. Good service begins with a clear inspection, so the technician can explain what is failing, what the repair will cost, and whether replacement is the more practical choice.

Beyond cooling and heating, the company also covers ductwork services, thermostat services, emergency HVAC calls, and maintenance and tune-ups that help equipment run efficiently between seasons. For Ontario households, that range matters. A single system may need seasonal tune-ups, airflow repairs, and a fast response when temperatures spike.

Homeowners comparing local pros should look beyond the lowest quote. Ask for the license number, request a written estimate, and confirm exactly what work is included. A reputable contractor will answer those questions without hesitation. You can compare options and find more local HVAC information through HVAC Service Fast before you schedule service.

Frequently Asked Questions

What services does Spec Construction Co Inc offer?

Spec Construction Co Inc offers AC services, heating services, ductwork services, heat pumps, furnace services, thermostat services, emergency HVAC, and maintenance and tune-ups. Customers can contact the company for help with any of these needs.

What areas does Spec Construction Co Inc serve?

Spec Construction Co Inc serves Ontario, California. Customers in that area can reach out for HVAC service and repairs.

How do I choose a licensed, insured HVAC contractor in Ontario?

Verify the contractor's state license number through the official California contractor registry and confirm they carry liability and workers' compensation insurance. Comparing several written estimates also helps you judge fair pricing and the scope of work.

What should I check before hiring an HVAC professional?

Check the license status, read recent customer reviews, and ask whether the quote includes parts, labor, and any warranty on the work. Make sure the technician explains the problem and the proposed fix in plain language before you agree to anything.

What are signs it is time to call an HVAC professional?

Call a professional if your system runs constantly without reaching the set temperature, makes grinding or banging noises, or produces uneven heating or cooling. A sudden rise in energy bills, a burning smell, or a unit that shuts off repeatedly also warrants prompt service.

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HVAC Service Fast is an independent HVAC directory and is not affiliated with this business. Listing details are compiled from publicly available information and may be incomplete or outdated. We do not endorse or guarantee any provider — please verify licensing and insurance directly. See our Disclaimer.