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Claim This BusinessGlendale Heating & Air Conditioning has served the Seattle area for years, earning a 4.8-star rating across 677 reviews. This heating contractor specializes in both traditional oil furnaces and modern heat pump systems, addressing the full range of residential heating needs in the Pacific Northwest. Based centrally in Seattle, the company dispatches technicians throughout King County, including neighborhoods like Ballard, Green Lake, and the University District.
What distinguishes Glendale from many contractors is their dual expertise in both legacy and emerging heating technologies. The company handles repairs and installations for oil-fired equipment alongside contemporary heat pump systems, a combination that few Seattle-area contractors match. Customer reviews reference Thermo Pride equipment installations, suggesting established manufacturer relationships that ensure proper parts access and warranty support. Their 8 AM to 7 PM service window across six days provides flexibility for homeowners managing busy schedules.
Customer stories reveal specific technician expertise. When Adam Peck detected persistent oil odors throughout his home, technician Greg conducted meticulous diagnostics and discovered a blackened nozzle requiring replacement, resolving the issue completely. Similarly, when Kimiko Lew's furnace failed during cold weather, Sergei arrived and restored warmth after ensuring proper setup and efficient operation. Another reviewer noted Bryan's knowledge during a three-day Thermo Pride furnace installation, while Janet's review praised the crew's practical approach and successful inspection clearance. These names, mentioned across multiple five-star reviews, indicate a team of seasoned technicians rather than rotating subcontractors.
All six detailed reviews award five stars, with Greg, Sergei, and Bryan each named specifically for their diagnostic skill and professional demeanor. Four reviewers describe the company handling furnaces that stopped functioning completely, and three mention same-day or next-day response. No negative reviews appear in the sample, with sentiment consistently praising both repair accuracy and installation speed.
| Sunday | Closed |
| Monday | 8 AM–7 PM |
| Tuesday | 8 AM–7 PM |
| Wednesday | 8 AM–7 PM |
| ThursdayToday | 8 AM–7 PM |
| Friday | 8 AM–7 PM |
| Saturday | 8 AM–7 PM |
Diagnostic services and tune-ups for oil and gas furnaces, addressing ignition issues, flame problems, and efficiency losses.
Complete heat pump system installations including same-day replacements of older heating equipment with modern energy-efficient units.
Specialized service for oil furnaces including nozzle replacement, fuel line maintenance, and combustion chamber service.
Annual furnace inspections, cleaning, and preventive maintenance to ensure safe operation before winter months.
Full-system furnace and heat pump replacements with professional installation and permitting.