Alosta Plumbing, Heating & Air Conditioning

★★★★★ 4.6 / 5 (5)
: Upland, CA 91786
: (626) 963-6047
:

Company Overview

Established in 1965, our family-run business has been serving the community. We proudly serve both the SGV and San Bernardino County. At Alosta, we prioritize our customers' needs and ensure satisfaction with every service. At Alosta, our customers are treated as part of our family. Business owner Patrick O'Mahony demands top performance from his employees. Alosta provides outstanding work in plumbing, heating, and air conditioning, and we are eager to serve you.

We handle everything from quick repairs to personalized installations. Alosta Plumbing, Heating & Air Conditioning, a family-owned company since 1965, has performed thousands of jobs, always guaranteeing our work.

Business Services

  • Plumbing inspection

Business Location & Hours



Mon:8:00 AM - 5:00 PM
Tue:8:00 AM - 5:00 PM
Wed:8:00 AM - 5:00 PM
Thu:8:00 AM - 5:00 PM
Fri:8:00 AM - 5:00 PM
Sat:8:00 AM - 5:00 PM
Sun:Closed

Recommended Customer Reviews

Julie N.
★★★★★

Pat and his son came out on a Sunday to give us an estimate. Completed the entire job 2 days later. New air conditioner, heater, new thermostat, and even added a vent upstairs. He showed up when he said he would, and finished the same day. All for a great price. Hard to find someone reliable and affordable these days.

Stephanie U.
★★★☆☆

I needed help getting my heater started. I called and Patrick was out within the hour. He primed the unit and got it started. He charged $100 for the service. A little pricey in my book, but his response time was great. Thank you Patrick.

Arlene W.
★★★★★

really quick and reliable help with central air cleaning and diagnostics. Would call them again

Tom M.
★★★★★

I highly recommend Alosta for your plumbing needs. They re-piped my house in the mid-90's. At that time it was Pat, at least one brother and another family member. They did very good work at a fair price and it did not hurt that they had a good sense of humor. Naturally they were the first plumbers to cross my mind when I needed to replace my old water heater (2010).

Pat and his son did the water heater and they were as professional and friendly as I remembered. Their price is still competitive but the important thing is -- I trust them.

After they removed the old unit I noticed two rather large holes in the wall where the pipes entered the house (I could just imagine what crawls into those holes at night). Pat noticed them too and patched them at no cost.

Trusted and recommended.

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