Alosta Plumbing, Heating & Air Conditioning — Upland, CA

Business Overview

Alosta Plumbing, Heating & Air Conditioning Upland CA is a family-owned service company serving households and businesses in the eastern San Gabriel Valley and San Bernardino County. The company handles routine maintenance, repairs, and installations for plumbing and HVAC systems. Emergency on-call service is available for urgent issues; customers can call for after-hours help when needed.

The team is made up of licensed technicians and installers. Staff are trained for residential work in single-family homes and condos, and for commercial jobs in small offices and retail spaces. Technicians arrive in uniform, carry needed parts for common repairs, and explain options in plain language.

Key Services

Alosta keeps service simple and clear. Main offerings include:

• Plumbing inspection — full checkups to find leaks, low water pressure, and pipe wear.
• Plumbing repairs and replacements — faucets, toilets, drains, water heaters, and repiping.
• Heating service — furnace checks, tune-ups, and replacements for colder months.
• Air conditioning — repairs, recharge, and new system installations for hot Inland Empire summers.
• Custom installations — tailored solutions for remodels and new construction.

Areas Served

Alosta works across nearby cities. Regular service areas include:

• Rancho Cucamonga, CA
• Ontario, CA
• Upland, CA
• Montclair, CA

Technicians are familiar with local housing types: mid-century ranch homes, newer tract houses, and multi-unit buildings common in the region.

Company History

Family owned and operated since 1965, Alosta Plumbing, Heating & Air Conditioning Upland CA began as a small neighborhood shop. Over the decades it has completed thousands of jobs across the San Gabriel Valley and San Bernardino County. The company grew from a single truck to a steady local crew while keeping a hands-on approach to customer care.

Work is backed by clear warranties and documented practices. Records and photos are used to explain repairs and show work done, which helps customers make informed decisions.

Leadership

Owner Patrick O'Mahony leads the company with a focus on workmanship and local ties. He has decades of industry experience and emphasizes trained staff and steady communication. Patrick and the team attend local trade events and keep up with code changes that affect homes in Upland and nearby communities.

Specialties & Highlights

• Long family history — operating in the region since 1965.
• Residential and light commercial experience — flexible for different job sizes.
• Practical inspections — clear reports and actionable repairs.
• Skilled installers for custom and retrofit work.
• Local knowledge of seasonal HVAC needs for inland Southern California.

Why Locals Choose Alosta Plumbing, Heating & Air Conditioning

Neighborhoods in Upland and the nearby valley pick Alosta for steady, reliable service and a family feel. The company combines decades of experience with hands-on crews that explain fixes without jargon. Regular customers appreciate prompt arrival windows, straightforward estimates, and the option to request emergency on-call help.

Hours

Mon–Sat: 8:00 AM – 5:00 PM. Sun: Closed. After-hours emergency service available by request.

For plumbing inspection or HVAC work in the area, Alosta Plumbing, Heating & Air Conditioning Upland CA is a local option with deep roots in the community.