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Claim This BusinessBlue Diamond Heating & AC Repair serves Simi Valley and surrounding Ventura County with a perfect 5-star rating across three verified client reviews. The company operates Monday through Saturday from 7 AM to 8 PM, providing scheduling flexibility for homeowners managing busy workweeks. Their service portfolio covers residential heating and cooling systems, with particular emphasis on ductwork integrity and indoor air quality interventions.
While the company's website provides limited detail about specific brand partnerships or manufacturer certifications, the review feedback consistently highlights technical competence and fair pricing on complex repair scenarios. The mention of specialized duct cleaning and mold-inhibiting treatments suggests a focus on whole-home air quality beyond basic temperature control.
Recent client testimonials identify technician Aaron by name, detailing his thorough approach to diagnosing moisture migration problems in residential ventilation systems. One reviewer describes a same-day response during an urgent situation, praising the combination of speed, craftsmanship, and transparent pricing that minimized disruption to their household. The multi-property portfolio client specifically notes the team's willingness to handle ongoing maintenance for multiple residences without hesitation.
All three reviews award five stars, with two specifically mentioning emergency same-day response and one praising fair pricing on complex repairs. Technician Aaron is named in one detailed testimonial describing mold remediation and duct cleaning work.
| Sunday | Closed |
| Monday | 7 AM–8 PM |
| Tuesday | 7 AM–8 PM |
| Wednesday | 7 AM–8 PM |
| ThursdayToday | 7 AM–8 PM |
| Friday | 7 AM–8 PM |
| Saturday | 7 AM–8 PM |
Full diagnostic and repair services for residential furnaces and heating equipment.
Cooling system maintenance, refrigerant service, and performance optimization.
Complete air duct cleaning to remove dust blockages and improve airflow.
Mold-inhibiting treatments and ventilation assessments for residential spaces.
Diagnosis and repair of bathroom and kitchen exhaust systems.
Same-day response for urgent heating and cooling failures.