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Professional Plumbing & HVAC Services in Kalispell, MT
In-Sink Quality Plumbing & Heating has served the Flathead Valley for over 35 years, delivering expert plumbing, heating, and HVAC solutions. Our team of licensed professionals specializes in emergency repairs, new construction projects, and residential/commercial remodeling, using only high-quality parts. With a lifetime labor guarantee and 24/7 emergency services, we prioritize customer satisfaction and long-term reliability.

Our expertise spans boiler repair, radiant heat systems, water treatment, and advanced plumbing technologies. As a locally owned business, we combine deep community ties with technical excellence to address every client's unique needs efficiently.
Services
Emergency Plumbing HVAC Installation New Construction Plumbing Bathroom Remodeling Water Heater Repair Radiant Heat Systems Boiler Repair Leak Detection Drain Cleaning Water Well Services
Highlights and features
  • We offer 24/7 emergency plumbing and HVAC services with rapid response times.
  • Our team holds Montana and North Dakota Master Plumber licenses for compliance expertise.
  • We provide a lifetime labor guarantee on all plumbing and heating repairs.
  • We use only high-quality parts for durable, long-term solutions.
  • We serve residential and commercial clients across the Flathead Valley region.
What people say
24/7 emergency service Skilled technicians Reliable solutions Lifetime labor guarantee Quality parts used
Services
Emergency Plumbing Repair
We provide immediate plumbing repair services for burst pipes, leaks, and system failures at any hour. Our technicians respond promptly to residential and commercial emergencies across the Flathead Valley. With specialized tools and rapid deployment, we minimize property damage and restore functionality swiftly.
HVAC Installation
Our team installs and maintains high-efficiency HVAC systems tailored to Montana's climate. We ensure proper sizing, code compliance, and energy efficiency for residential and commercial properties. Regular maintenance extends system lifespan and optimizes performance year-round.
New Construction Plumbing
We design and implement plumbing systems for new residential and commercial buildings. Our services include pipe layout, fixture selection, and code-compliant installations. We collaborate with contractors to ensure seamless integration with construction timelines and specifications.
Water Heater Repair
We repair, maintain, and replace traditional and on-demand water heaters. Our technicians diagnose issues like leaks, temperature fluctuations, and inefficiency. Upgrades to tankless systems improve energy savings and hot water availability for homes and businesses.
Bathroom Remodeling
We modernize bathrooms with new fixtures, showers, and plumbing layouts. Our team handles pipe relocation, waterproofing, and code-compliant installations. We prioritize water efficiency and aesthetic improvements while ensuring long-term functionality.
People
Charles Becker
Owner
With over 35 years as a licensed master plumber in Montana and North Dakota, Charles Becker leads In-Sink with expertise in plumbing, HVAC, and mechanical systems. He ensures all projects meet strict quality standards and customer needs.
Questions
Do you offer 24/7 emergency plumbing services?
Yes, we provide 24/7 emergency plumbing repair for burst pipes, leaks, and system failures across the Flathead Valley.
What areas do you service?
We serve Kalispell, Whitefish, Bigfork, Columbia Falls, Polson, West Glacier, and Lakeside in Montana's Flathead Valley.
Do you handle commercial plumbing projects?
Yes, we specialize in commercial plumbing maintenance, repairs, and new installations for businesses of all sizes.
What HVAC services do you offer?
We install, repair, and maintain heating, ventilation, and air conditioning systems for residential and commercial properties.
Do you provide lifetime warranties?
Yes, we offer a lifetime labor guarantee on all plumbing and heating repairs performed by our licensed technicians.
Videos
Reviews (6)
Ian Baker
May 27, 2022 Report
Charlie has always been very helpful. I'm thankful that he has been available during this labor shortage. This guy is extremely reliable and personable. He really cares about each and every job that he does. These guys are affordable as well. The bill won't knock you off your feet. This is a guy you can talk to about your needs and he will help you work it out. Thanks, Charlie
David
Oct 25, 2021 Report
Overcharged us for garbage disposal and parts. Make sure to get a quote before you decided on their service. It was our mistake for not asking for pricing beforehand. But then again, who charges extra for retail parts? We really liked the installer, he was fast and friendly. We won't use In-Sink again for overcharging us and not being upfront with their pricing. It's a shame as we are about to do a home remodel and they lost the long term business for a temporary gain. Lost out on thousands of dollars for inflated pricing. Do what is right for the client and you will have them for a lifetime. In this case, just a one and done service.
S. C.
Mar 06, 2021 Report
Outstanding customer service! Five stars for responsiveness and going above and beyond to ensure we had hot water when our hot water heater kicked the bucket. I was blown away when another plumber in town could not get to us for 2 weeks and Charlie with In-Sink was at our house the day we called, despite a full schedule. Charlie's pricing is competitive and the quality is top notch. I would not even think twice about considering anyone else for any critical plumbing need! Charlie is honest, personable and knows how to put the customer 1st! Thank you for the outstanding service!
Kari Lynne
Mar 16, 2020 Report
Called and spoke to owner, Charlie. Said I did not need a new hot water tank, that this one one was not that old. Waited for tech to come, next day. Tech showed up and was going to change element, but there was prior water damage, from the last leaky tank. Tech called Charlie, Charlie would not completer the work needed, even though tech said that Charlie was more of a replace it guy. Surprised he is still in business actually. Tech was nice, and helpful, though no work was completed. Posted this review.
Derrick Coston
Feb 05, 2020 Report
In Sink did a terrific job for me. I had a toilet that was hard to clear of waste. In Sink quickly identified my toilet was very aged and likely the culprit. I was told he would comeback on X day, he came back on X day. Completed the job at a reasonable price. In this trade, punctuality is a dying trait - not at In Sink.
S. L. C.
Oct 27, 2019 Report
Summer of 2017: way too expensive, took way too long to find the leak and then way too long to fix the problem and charged way too much for the entire job considering everything! Just very unhappy and unsatisfied with the entire experience. Then tried to call again for a situation for a quote spring of 2020 and had another terrible experience with the that whole entire situation.so this last time I never did get a reply or person to even consider helping me. However I must comment in looking online it said open and it was not and it said 24 hours and it was not.