Jamison Plumbing and Air

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About Jamison Plumbing and Air
Jamison Plumbing and Air delivers plumbing, heating, and air conditioning services to homeowners across Lake Forest and Foothill Ranch. The company holds a perfect 5-star rating from a single verified review and maintains California contractor license CSLB #1072598, confirming compliance with state bonding and insurance requirements. With two decades of hands-on experience and a documented track record of serving more than ten thousand clients, the team operates around the clock Monday through Saturday to respond to residential and light commercial calls.
What distinguishes this contractor is their transparent flat-rate pricing model, which replaces hourly billing with predetermined job costs to protect homeowners from open-ended invoices. All work performed receives a written guarantee, and the company offers a monthly maintenance program at $12.99 that includes two annual service visits, one for cooling systems and one for heating equipment, to preserve manufacturer warranties and extend equipment lifespan.
Customer reviews highlight specific technicians who arrived same-day during urgent situations. One reviewer praised Brandon for thoroughness and practical recommendations, while another returned customer noted Cory and Brandon prepared their home for winter weather. A third review described Griffin, the project manager, for coordinating a full system replacement with competitive pricing and responsive communication from Ryan.
What Customers Say
One reviewer awarded 5 stars for quick service and expertise across both air conditioning and plumbing repairs, calling the staff knowledgeable and great.
Working Hours
| Sunday | Closed |
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| Thursday | Open 24 hours |
| Friday | Open 24 hours |
| SaturdayToday | Open 24 hours |
Services
AC Repair & Maintenance
Diagnoses, repairs, and performs annual maintenance to preserve manufacturer warranties and system efficiency.
Plumbing Repairs
Handles leaks, pipe repairs, fixture installations, and comprehensive plumbing diagnostics for residential and light commercial properties.
Furnace Safety Check
Inspects, cleans, and tunes heating systems to prepare homes for winter and maintain safe operation throughout the heating season.
Tankless Water Heater Service
Installs tankless units and provides annual cleaning and inspections to maintain hot water reliability and energy efficiency.
Annual Maintenance Plan
Two annual service visits covering both cooling and heating systems for $12.99 monthly, preserving warranties and extending equipment life.