Air Master Service Heating & Air Conditioning Inc
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Air Master Service Heating & Air Conditioning Inc operates out of Elk Grove, California, holding contractor license #946438. With a 4.4-star average drawn from 14 client reviews, the company provides sales, installation, and repair work across Elk Grove and the greater Sacramento metro area, including Citrus Heights. The business maintains extended daily hours, opening at 7 AM and closing at 6 PM six days per week, accommodating schedules that many residential customers find convenient for before-work service calls or weekend projects.
Owner-operator Brian Chau distinguishes the company through transparent pricing and thorough on-site explanations. Reviewers repeatedly note that before any repair begins, Chau walks homeowners through the diagnosis, describing exactly what failed and what the proposed fix involves. This communication style, combined with competitive labor rates and warranty coverage that at least one customer cited as superior to larger competitors, reflects a smaller operation with direct accountability to each client. The focus on clear estimates and post-service education helps customers make informed maintenance decisions rather than simply accepting recommended work.
Customer stories reveal consistent responsiveness during urgent situations. When Sean Guirit's AC failed, Brian Chau replaced the unit the same day at reasonable cost with enhanced warranty protection. During a 108-degree heat wave, mel cutia contacted the company at 3 PM and received same-day restoration before evening, a scenario repeated across multiple reviews where Chau arrived quickly and worked efficiently to restore comfort. Tai Nguyen described Chau making multiple service visits for separate issues, refilling refrigerant, replacing a failed condenser, and correcting thermostat wiring, demonstrating capability across heating, cooling, and electrical aspects of HVAC work. This range of skills allows one technician to handle issues that might otherwise require multiple specialists.
What Customers Say
Thirteen of 14 reviews award five stars, with praise centering on same-day service, fair pricing, and professional explanations before work begins. All five-star reviews mention Brian Chau by name and note his rapid response and thorough post-job communication. No negative reviews appear in the available sample.
Working Hours
| Sunday | 7 AM–6 PM |
| Monday | 7 AM–6 PM |
| Tuesday | 7 AM–6 PM |
| Wednesday | 7 AM–6 PM |
| ThursdayToday | 7 AM–6 PM |
| Friday | 7 AM–6 PM |
| Saturday | 7 AM–6 PM |
Services
HVAC System Replacement
Full installation of new heating and cooling systems, including duct modifications, performed by a licensed contractor with professional manufacturer support.
Same-Day AC Repair
Emergency response for failed air conditioning units, available six days per week with morning and afternoon appointment windows.
Preventive Maintenance
Seasonal tune-ups and inspection services designed to extend equipment life and reduce unexpected failures during peak usage periods.
Duct Repair and Modification
Correction of airflow problems through duct adjustment or repair, addressing issues like leaks, disconnections, or improper sizing.
Thermostat Replacement
Installation of new digital or programmable thermostats, including correction of wiring errors that prevent proper heating and cooling cycles.
Refrigerant Services
Refilling R-410A or other refrigerants for systems experiencing slow leaks, with diagnosis of the underlying cause to prevent repeat service calls.
Heat Pump Sales and Installation
Dual-function heating and cooling systems that provide efficient climate control for residential applications, installed as alternatives or upgrades to traditional split systems.