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Claim This BusinessAll Season Heating & Cooling has served Glendale homeowners since 1989, making it one of the longest-operating HVAC contractors in the San Fernando Valley foothills. The family-owned business holds a 5-star rating across 4 client reviews and employs certified technicians capable of handling everything from routine maintenance to complex system installations. The company works on a wide variety of heating and cooling products for both residential and light commercial properties throughout Glendale and surrounding foothill communities.
What separates this contractor is their investment in advanced indoor air quality solutions and their honest approach to system repairs. Rather than defaulting to full replacements, their technicians diagnose issues thoroughly and recommend repairs when viable, saving customers significant money. They pair quality products with cutting-edge technology and offer documented maintenance plans tailored to each homeowner's system and budget. The company's longevity reflects steady client relationships built on consistent craftsmanship rather than aggressive sales tactics.
Reviewer Breanna Santillo contacted the company because her son suffers from allergies and asthma. Technician John assessed her home and recommended UV Light and IWave air purification systems. After installation, her son's symptoms virtually disappeared, and she gained confidence knowing her household breathes cleaner air. In another urgent case, Glendale resident Ellenie G. lost air conditioning entirely during a prolonged heat wave. John diagnosed a single failed component inside her aging unit and ordered the specific part rather than proposing a costly replacement. Technician Tyler kept her informed throughout the process and left the job site clean.
Every one of the 4 reviews awards 5 stars, with three explicitly naming technician John or Tyler. Common threads include honest repair recommendations, thorough communication, and clean worksites. Reviewers consistently note that John avoided selling unnecessary new units when targeted repairs solved the problems.
| Sunday | 7 AM–5 PM |
| Monday | 7 AM–5 PM |
| Tuesday | 7 AM–5 PM |
| Wednesday | 7 AM–5 PM |
| ThursdayToday | 7 AM–5 PM |
| Friday | 7 AM–5 PM |
| Saturday | 7 AM–5 PM |
Diagnoses and resolves cooling failures, refrigerants leaks, and component wear. Seasonal tune-ups prevent mid-summer breakdowns.
New system sizing, selection guidance, and professional installation for existing homes and new construction projects.
Full-service furnace and heat pump work including part replacement, system swaps, and energy-efficient upgrade consultations.
Advanced filtration including UV Light and IWave air purifiers designed to reduce allergens, bacteria, and airborne particles.
Custom ductwork layout and installation ensuring even airflow distribution throughout residences and commercial buildings.
Ongoing service agreements covering seasonal inspections, cleaning, and priority scheduling for enrolled clients.