Stephan's Home Comfort Services
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About Stephan's Home Comfort Services
Stephan's Home Comfort Services traces its roots to 1988, when founder Hung Nguyen began repairing and installing refrigeration systems, air conditioners, and heaters for the Vietnamese community of Little Saigon in Garden Grove. Nearly four decades later, the contractor holds a 4.8-star average from 35 customer reviews and operates from an address on Knott Street in Garden Grove. The company now proudly serves clients across Los Angeles and Orange County, with extended weekend hours on Saturday mornings.
This contractor highlights participation in the California Tax Credit program, helping homeowners offset costs when upgrading to energy-efficient systems. Their expertise spans conventional central AC and heating alongside ductless mini-split systems, a growing preference for room additions and older homes lacking ductwork. Five-star reviewers consistently praise the straightforward pricing, noting charges for diagnostics and refrigerant refills that fell well below estimates from competing firms.
What Customers Say
Four of five featured reviewers specifically call out fast turnaround times, with one calling out same-day arrival to replace a failed blower motor. Three reviewers name their technician by name, with both Derrick and Erik receiving direct praise for diagnostic thoroughness and respectful in-home behavior. Negative feedback does not appear among the extracted reviews, and every featured rating lands at five stars.
Working Hours
| Sunday | Closed |
| MondayToday | 8 AM–5 PM |
| Tuesday | 8 AM–5 PM |
| Wednesday | 8 AM–5 PM |
| Thursday | 8 AM–5 PM |
| Friday | 8 AM–5 PM |
| Saturday | 8 AM–12 PM |
Services
AC Repair & Maintenance
Tune-ups, diagnostics, and repairs covering capacitors, compressors, blowers, and refrigerant-related issues for central air conditioning systems.
AC Installation & Replacement
New equipment installation and complete system swaps, including sizing calculations and coordination with existing ductwork.
Heating Repair & Maintenance
Furnace and heat pump service encompassing ignition components, blower motors, and combustion safety inspections.
Heating Installation & Replacement
Removal of old heating equipment and installation of new gas or electric systems matched to the home's load requirements.
Ductless Mini-Split Systems
Installation and service of wall-mounted and floor-mounted mini-splits ideal for additions, garages, and homes without ductwork.
Emergency AC and Heating Service
After-hours or urgent-response calls for system failures requiring immediate attention to restore comfort and safety.
Indoor Air Quality Solutions
Upgrades such as filtration upgrades and UV lights designed to reduce allergens, humidity, and airborne contaminants inside the home.