Reliable heating, cooling & refrigeration you can count on
Twin City Service Co. keeps homes and businesses across Kelso, Longview and Southwest Washington comfortable with expert HVAC installation, service and 24-hour emergency repair.
Complete comfort & refrigeration solutions
From whole-home heating and cooling to keeping commercial refrigeration running around the clock, our highly trained technicians do it all — for residential and commercial customers alike.
Heating & Cooling Systems
Installation, service and repair of furnaces, air conditioners and heat pumps for residential and commercial properties.
Explore servicesCommercial Refrigeration
Custom maintenance packages and round-the-clock emergency response to protect your perishables and your business.
Learn moreService & Maintenance
Annual maintenance programs and expert repairs that keep your air conditioning and heating systems running properly.
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Family-owned comfort experts since 1996
Twin City Service Company has been meeting the heating and air conditioning needs of Southwest Washington residents since 1996. Our highly trained and experienced technicians provide top-quality service, installation and repairs for all of your HVAC needs.
- Family owned & operated with 30+ years of industry experience
- Certified, factory-trained technicians who continually update their skills
- Customer Care Dealer with a 90%+ customer approval rating
- Free estimates on new equipment and a full-service sheet metal shop
Twin City Service sells, installs and services
Residential & Commercial
Heating and cooling systems, heat pumps and air conditioners for every property type.
Electric & Gas Furnaces
High-efficiency furnace options expertly matched to your home and budget.
Hood Systems, Exhaust & Fans
Commercial hood systems, exhaust and ventilation fans, installed and serviced.
Refrigeration Equipment
The largest selection of commercial refrigeration equipment in the county.
Air Conditioners & Heat Pumps
Energy-efficient cooling and year-round comfort from trusted brands.
Commercial Water Heaters
Reliable commercial water heating sales, installation and repair.
Meet Twin City Service
See how we serve our community's heating, cooling and refrigeration needs.
What our customers say
Trusted by homeowners and businesses across Southwest Washington.
“They quickly found a loose wire and a burned-out fuse — minutes later my heat pump was working. I've found a company I can really trust and recommend to my friends.”
“We so appreciate the fast response you gave when we needed our heat pump and furnace repaired. Your man came late after working long hours and was so nice and friendly. Thank you.”
“Twin City Service was by far the most professional and reliable. They provided me with a state-of-the-art heating and cooling system that exceeded my expectations.”
“Thank you, you're the best!”
“Thanks so much! Great customer service!”
“I thought the service was good and my heat pump is doing great. Thank you!”
More ways we keep you running
Full-service sheet metal shop
Custom fabrication in-house for ductwork and specialty applications.
Superior refrigeration service
We provide superior service on all commercial refrigeration equipment.
Free estimates on new equipment
Know your options up front with no-cost estimates on new installations.
Proudly serving Southwest Washington & NW Oregon
From our home base in Kelso, our technicians cover an 82-mile radius of the Kelso/Longview area.