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Claim This BusinessCertified Service operates from Burbank, California, holding an air conditioning contractor license and maintaining a 4.1-star average across 8 published reviews. The company serves residential customers throughout the San Fernando Valley, including Glendale and Pasadena, handling routine maintenance, repairs, and full system replacements for aging furnaces and central air conditioning units. Operating hours run Monday through Friday from 8 AM to 5 PM, with weekends closed.
What distinguishes Certified Service from neighboring contractors is its longevity within the community. Multiple reviewers note relationships spanning 15 to 25 years, suggesting repeat clientele who trust the company with their homes across generations of equipment. The company stocks and installs residential thermostats, positioning itself as a one-stop resource for both diagnostic work and the replacement parts necessary to restore heating and cooling function.
Katherine Babbitt described a recent encounter where a Certified Service technician diagnosed a faulty thermostat and recommended a Honeywell model, quoting $1,000 before negotiating to a lower price point, though she ultimately felt the final charge of nearly $400 exceeded the part's market value. Another reviewer, jackblk226, credited the company with superior service compared to competitors, while Maryjane Subia praised the consistent 15-year partnership keeping her home comfortable. These accounts illustrate the breadth of customer expectations the company manages, from budget-conscious homeowners to those seeking dependable long-term care for aging systems.
Two negative reviews cite pricing concerns, including a thermostat replacement that cost nearly $400 despite available online options under $125. Three five-star reviews emphasize reliability, longevity of service relationships, and superior craftsmanship compared to other area contractors. Overall, 5 of 8 reviewers recommend Certified Service based on trust built over years of consistent residential work.
| Sunday | Closed |
| Monday | 8 AM–5 PM |
| Tuesday | 8 AM–5 PM |
| Wednesday | 8 AM–5 PM |
| ThursdayToday | 8 AM–5 PM |
| Friday | 8 AM–5 PM |
| Saturday | Closed |
Diagnosing and fixing refrigerant issues, compressor failures, and airflow problems in residential split systems and ducted units.
Maintaining, repairing, and replacing gas furnaces and electric heating systems for Burbank-area homes.
Installing programmable and smart thermostats, including -specific models recommended during service calls.
Seasonal tune-ups designed to extend equipment lifespan and improve energy efficiency for existing HVAC systems.
Evaluating aging equipment and advising homeowners on repair versus replacement options, including cost comparisons.