When Seattle homeowners search for AC Services, they usually have a specific problem: a unit that struggles during a warm spell, a noisy compressor, or a system that runs constantly without keeping rooms comfortable. Apollonius LLC is a local HVAC business serving homes and properties in the Seattle area, with a focus on residential comfort.
Local market — Seattle
HVAC pros here
120
Have a website
63%
Cooling demand
188
Heating demand
4,370
Cooling/heating demand = annual degree days (NOAA). Electricity = state residential average (EIA).
The company offers AC Services, heating-services" class="font-medium text-brand-blue hover:underline">Heating Services, Ductwork Services, Heat Pumps, Furnace Services, Thermostat Services, Emergency HVAC, and Maintenance & Tune-up. A cooling visit typically involves checking refrigerant levels, cleaning coils, inspecting electrical connections, and testing airflow at the vents. Furnace and heating work follows a similar path, with ignition and burner checks, blower inspection, and safety testing. Ductwork reviews look for leaks, loose joints, and poorly insulated runs in unconditioned spaces.
Apollonius LLC holds Washington state contractor license #APOLLL*751N9, issued through the state contractor registry, and has been licensed since 2025, giving it more than a year of experience in the trade. Seattle's mild summers and damp, cool winters place different demands on equipment, so the company's work reflects conditions common in the region.
Homeowners comparing local options should ask for written estimates, confirm license details, and request a clear explanation of any recommended repairs. HVAC Service Fast offers a straightforward way to review nearby providers before you decide.
Frequently Asked Questions
What services does Apollonius LLC offer?
Apollonius LLC offers AC Services, Heating Services, Ductwork Services, Heat Pumps, Furnace Services, Thermostat Services, Emergency HVAC, and Maintenance & Tune-up. Contact the company directly to confirm which options fit your home.
What areas does Apollonius LLC serve?
Apollonius LLC serves the Seattle area in Washington. Confirm current coverage with the company before scheduling service.
How do I choose a licensed, insured HVAC contractor in Seattle?
Check that the contractor holds a valid Washington state contractor license and ask for proof of insurance. Compare written estimates and look for clear, itemized explanations of the work.
What should I check before hiring an HVAC professional?
Verify the license number in the state contractor registry, read recent customer reviews, and confirm the warranty terms on parts and labor. Ask whether the technician will explain findings and provide a written quote before starting work.
What are signs it is time to call an HVAC professional?
Call a professional if your system short-cycles, makes grinding or banging noises, produces uneven temperatures, or has a sudden rise in energy bills. Gas odors, a furnace that won't ignite, or no cooling during extreme heat also warrant prompt service.
Is this your business?
6 of 12 profile details are filled in.
Added (6)
Missing (6)
Claim it free to add the missing details:
WebsiteEmail addressBusiness hoursLogoPhotos of your workSocial profiles
HVAC Service Fast is an independent HVAC directory and is not affiliated with this business. Listing
details are compiled from publicly available information and may be incomplete or outdated. We do not endorse
or guarantee any provider — please verify licensing and insurance directly. See our
Disclaimer.
We use cookies for essential site functions, analytics and advertising. See our
Cookie Policy.
