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Island Security Systems Inc

No ratings collected yet Mercer Island, Washington

PO BOX 265, Mercer Island, WA 98040, USA

License checked License #ISLANSS122QC 38 yrs experience

Verify this license yourself at the Washington L&I Contractor Verify.

Island Security Systems Inc focuses its HVAC work on AC Services for homeowners and businesses across Mercer Island, Washington. Cooling problems often surface during the hottest weeks of the year, and the company's crews are set up to diagnose them clearly and present practical repair options. Whether a system is struggling to keep up or has stopped running, property owners receive straightforward guidance on what needs attention.

Local market — Mercer Island

HVAC pros here

1

Cooling demand

223

Heating demand

4,554

Electricity

13.1¢

Cooling/heating demand = annual degree days (NOAA). Electricity = state residential average (EIA).

Location

About Island Security Systems Inc

Beyond cooling, Island Security Systems Inc provides Heating Services, Furnace Services, Heat Pumps, and Ductwork Services. Thermostat Services cover installation and adjustment of controls that manage comfort and run times. Emergency HVAC work addresses urgent breakdowns, while Maintenance and Tune-up visits check components, clean key parts, and help systems run efficiently.

The company holds Washington state contractor license #ISLANSS122QC and has been licensed since 1988, bringing more than 38 years of trade experience. Mercer Island homes and businesses vary in layout and age, and that local context shapes how the team plans each service call.

Comparing local HVAC pros? Ask for a written scope of work, a clear timeline, and the warranty terms before approving any job. Island Security Systems Inc welcomes that kind of review. Listings on HVAC Service Fast are meant to help you weigh your options side by side before you decide.

Frequently Asked Questions

What services does Island Security Systems Inc offer?
Island Security Systems Inc offers AC Services, Heating Services, Ductwork Services, Heat Pumps, Furnace Services, Thermostat Services, Emergency HVAC, and Maintenance and Tune-up. The company works with both homeowners and businesses.
What areas does Island Security Systems Inc serve?
Island Security Systems Inc serves Mercer Island, Washington. Contact the company directly to confirm whether a specific property falls within its current service coverage.
How do I choose a licensed, insured HVAC contractor in Mercer Island?
Check that the contractor's state license number is listed and verify it in the Washington state contractor registry. Ask for proof of liability insurance and workers' compensation coverage before work begins.
What should I check before hiring an HVAC pro?
Request a written estimate that describes the scope of work, parts, timeline, and warranty terms. Compare at least two quotes and confirm how the contractor handles follow-up service questions.
What are signs it is time to call an HVAC professional?
Call a professional if your system short-cycles, makes grinding or banging noises, or fails to heat or cool a room evenly. Rising energy bills, a strange burning smell, or frequent thermostat problems also warrant prompt service.

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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.