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Claim This BusinessGallagher's Plumbing, Heating, Air Conditioning has built a loyal client base across Olivehurst, Yuba County, and surrounding communities in California's Central Valley. With 225 customer reviews generating a 4.7-star average, this contractor demonstrates consistent service quality that resonates with homeowners who value reliability. The company operates Monday through Friday from 8 AM to 6:30 PM, serving residential customers who need everything from routine maintenance to emergency repairs.
What distinguishes Gallagher's from neighboring contractors is their breadth of expertise spanning three trades. Reviewers repeatedly single out individual technicians for exceptional service, with names like Colt Magsam, Kosta, James Cleary, and Brian appearing across multiple five-star ratings. The company maintains a membership program called the Shamrock Club, offering scheduled seasonal maintenance inspections for both air conditioning and heating systems. Their approach emphasizes clear communication, technicians explain diagnoses and options rather than simply presenting a bill.
Homeowners frequently describe specific scenarios where Gallagher's technicians exceeded expectations. Michelle Guidry praised Kosta for quickly diagnosing her heating failure, returning within two days with the necessary part to restore warmth to her home. Randy Williams recounted how Colt Magsam navigated a challenging installation in a tight space while remaining courteous and maintaining a clean work site despite noisy dogs. Patrick McGinley noted Kosta's thoroughness in addressing every requested item, calling him a valuable company representative worth retaining. These detailed accounts reflect a team that treats each service call as an opportunity to demonstrate professionalism.
Among the 6 detailed reviews examined, 5 are five-star ratings where customers specifically name technicians like Kosta, Colt Magsam, James Cleary, and Brian. Positive reviews consistently praise diagnostic skill, courtesy, and thoroughness, while a single two-star review cites scheduling delays with the maintenance membership program. All customers with heating or AC failures report successful repairs.
| Sunday | Closed |
| Monday | 8 AM–6:30 PM |
| Tuesday | 8 AM–6:30 PM |
| Wednesday | 8 AM–6:30 PM |
| ThursdayToday | 8 AM–6:30 PM |
| Friday | 8 AM–6:30 PM |
| Saturday | Closed |
Diagnose and repair cooling systems, including component replacement and seasonal tune-ups for residential units.
Restore furnace functionality and perform fall inspections to ensure winter readiness, as noted in customer reviews.
Install new heating and cooling systems, with technicians skilled in challenging spaces and tight installations.
Address plumbing needs including tub resurfacing options and general residential repairs beyond HVAC work.
Evaluate system performance and recommend solutions based on homeowner-specific conditions and diagnostic findings.
Shamrock Club offers scheduled seasonal inspections for both AC and furnace systems with pre-scheduled appointments.