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Alliant Systems LLC

No ratings collected yet Portland, Oregon

351 NW 12th Ave, Portland, OR 97209, USA

License checked License #ALLIASL961NL 22 yrs experience

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

(503) 619-4000
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Alliant Systems LLC is an HVAC contractor serving homeowners and businesses across Washington, with AC Services as its core offering. Cooling problems often surface during the hottest weeks of the year, and the company's technicians handle diagnostics, refrigerant checks, coil cleaning, capacitor and fan motor repairs, and full system replacements.

Services Offered

AC Services Heating Services Ductwork Services Heat Pumps Furnace Services Thermostat Services Emergency HVAC Maintenance & Tune-up

Service Area

All of Washington

Location

About Alliant Systems LLC

The company also provides Heating Services, Furnace Services, and Heat Pumps. Furnace work typically includes burner and ignition inspection, safety controls testing, and efficiency checks, while heat pump service covers both heating and cooling modes. Ductwork Services address leaks, airflow imbalances, and duct sealing, and Thermostat Services cover installation, wiring checks, and programming. Emergency HVAC calls are answered for urgent breakdowns, and scheduled Maintenance & Tune-up visits help catch small issues before they become costly repairs.

Alliant Systems LLC holds Washington state contractor license #ALLIASL961NL and has been licensed since 2004, giving the company more than 22 years in the trade. Washington's varied climate, from damp coastal winters to dry summer heat in eastern areas, places steady demands on heating and cooling equipment, and local experience with those conditions matters.

Homeowners and property managers comparing local HVAC contractors should verify license details, ask for clear written estimates, and confirm which services are included before work begins. Those reviewing options on HVAC Service Fast can use this profile as a starting point for a conversation about their system's needs.

Frequently Asked Questions

What services does Alliant Systems LLC offer?
Alliant Systems LLC offers AC Services, Heating Services, Ductwork Services, Heat Pumps, Furnace Services, Thermostat Services, Emergency HVAC, and Maintenance & Tune-up. Its work spans both cooling and heating equipment for residential and commercial properties.
Which areas does Alliant Systems LLC serve?
Alliant Systems LLC serves Washington. Customers are encouraged to confirm coverage for their specific location when they reach out.
How do I choose a licensed, insured HVAC contractor in Washington?
Start by checking the contractor's license status in the Washington state contractor registry and asking for proof of liability insurance. Compare written estimates and look for clear, itemized quotes before agreeing to any work.
What should I check before hiring an HVAC professional?
Confirm the license number, ask about warranties on parts and labor, and request a detailed description of the proposed work. Make sure the technician explains the problem and the options in plain terms before any equipment is replaced.
What are signs it is time to call an HVAC professional?
Call a professional if your system runs constantly, produces unusual noises or odors, or fails to reach the set temperature. Rising energy bills, frequent cycling on and off, and warm or uneven airflow are also common reasons to schedule 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.