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Alosta Plumbing, Heating & A/C

Founded 1965 • With Angi since August 2005


(7) Verified Reviews


Family owned & operated. Since 1965. Serving the SGV and San Bernardino County. Alosta puts the customer's needs first and guarantees satisfaction every time. At Alosta we treat our customers like family. Business owner Patrick O'Mahony demands excellence from his employees. Providing top notch high quality work in plumbing, heating and air conditioning, Alosta looks forward to working with you. Additional address - 873 N 11th Ave, Upland, CA 91786. Additional DBA - Alosta Plumbing AC & Heating....

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Verified Reviews

A few reviews for this pro...



Description of Work
Unstopped our sink which was clogged up. Only took him 15 minutes but charge over $100. Did a good job but I thought his price was a little high for what he had to do.

Category heating & air conditioning/hvac,plumbing



We contacted Alosta on Wednesday afternoon. Pat came out the same day, confirmed we needed a new condenser but not a new evaporator coil, as a previous contractor had told us. A new unit was installed and working the next day.

Description of Work
Replaced A/C Condenser

Category heating & air conditioning/hvac



They are absolutely wonderful.

Description of Work
They repaired a shower valve.

Category plumbing



My furnace went out, called Alosta Plumbing and Pat said he would be over at 2:00. Showed up precisely at 2:00, diagnosed and fixed the problem within 15 minutes. A couple of relays had gone out and wasn't allowing the flame to light. Have had Alosta over before for an air conditioning problem and had the exact same professional experience.

Description of Work
My furnace was blowing cold air, and of course this is one of the coldest days of the year. Alosta diagnosed, repaired, and changed the filter.

Category heating & air conditioning/hvac



Alosta installed my air conditioner 14 years ago and it ran smooth since. The unit out the other day, Alosta came out the same day I called, and replaced my unit the next day. Pat also returned the same afternoon to make sure the new unit was working properly and that the air was flowing freely. Very professional and punctual. Would highly recommend Alosta Plumbing, Heating, and Air.

Description of Work
Inspect and replace my air conditioner

Category heating & air conditioning/hvac

    Services Offered

    Residential and commercial plumbing, heating contractor including A/C, heat pump installation, duct system cleaning, water heater, refrigerator, pipe, clogged drain, leak repair, toilet, septic tank, garbage disposal, back flow prevention, softener, bathtubs, shower, sink, maintenance, cleaning & HVAC.

    Services Not Offered

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