Business Details
50+ Years
experience
Emergency
services
Trusted Plumbing & HVAC Services in Great Falls, MT
Founded in 1928 as a sheet metal shop, AT Klemens has evolved into a trusted multi-service contractor specializing in plumbing, HVAC, electrical, and commercial roofing. Our commitment to quality materials, skilled craftsmanship, and customer satisfaction has driven our growth across Montana and the Northwest. With decades of combined experience, our licensed professionals deliver reliable solutions for residential and commercial projects, from emergency repairs to large-scale installations.We prioritize prompt service, transparent communication, and long-term client relationships, ensuring minimal disruption and maximum efficiency. Backed by industry-leading warranties and a reputation for excellence, we remain a family-owned business dedicated to innovation and community trust.
Services
Commercial Roofing
Electrical
Heating and Air Conditioning
Plumbing
HVAC Maintenance
Details
- Year established: 1928
Highlights and features
- We have over 90 years of experience serving Montana and the Northwest.
- Our licensed electricians and plumbers deliver precise, code-compliant installations and repairs.
- Emergency services are available for urgent heating, plumbing, or electrical issues.
- We maintain high standards with quality materials and labor warranties.
- Our team coordinates multi-craft projects efficiently as a one-source subcontractor.
What people say
Prompt and professional
Reasonable quote
Thorough and professional
Reliable and experienced
Minimal inconvenience
Services
Plumbing
AT Klemens' plumbing department offers complete design, installation, and maintenance by licensed journeyman plumbers. We handle residential and commercial needs, including water heater replacements, sewer line repairs, and gas line installations. Our rapid-response technicians ensure minimal disruption with fully stocked service vehicles.
Heating and Air Conditioning
Our HVAC experts provide installation, repair, and maintenance for residential and commercial heating and cooling systems. Services include ductless systems, radiant floor heating, and zone-controlled solutions. We use top-quality equipment and prioritize energy efficiency for year-round comfort.
Electrical
AT Klemens offers residential and commercial electrical services, including panel upgrades, LED lighting, and emergency repairs. Our licensed electricians handle new construction, remodels, and safety inspections, ensuring code compliance and system reliability for homes and businesses.
Commercial Roofing
We specialize in commercial roofing with services like single-ply installations, waterproofing, and historic restoration. Our licensed applicators use premium materials and offer preventive maintenance programs to extend roof longevity for businesses in Montana and beyond.
Emergency Services
Available for critical plumbing, electrical, or HVAC failures, our emergency team responds promptly to minimize downtime. Whether it's a burst pipe or furnace failure, we prioritize rapid solutions to restore safety and functionality for residential and commercial clients.
Questions
What services does AT Klemens offer?
We provide plumbing, HVAC, electrical, and commercial roofing services for residential and commercial clients in Montana and surrounding areas.
Do you offer emergency repair services?
Yes, we provide 24/7 emergency services for urgent plumbing, electrical, or HVAC issues.
Are your technicians licensed and insured?
All our technicians are licensed, bonded, and insured for residential and commercial projects.
What areas do you serve?
We serve Great Falls, Cascade County, Western Montana, and select Northwest states.
How can I schedule a service?
Call us at (406) 452-9541 during business hours or use our online bill pay for appointments.
Do you offer warranties on your work?
Yes, we provide industry-leading warranties on labor and materials for all services.
Reviews (4)
Kim Stringer
Dec 16, 2021
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Critical: Quality, Responsiveness, Value Very poor installation of my gas boiler system. It makes loud banging noises and it's 100 degrees in some rooms. Service: Heating system installation
Karen F.
Dec 12, 2021
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I called on Friday. They came to examine the problem on Monday exactly at the stated time. The repair person was here exactly on time on Tuesday morning and the issue resolved in less than 2 hours. I very much appreciate the timely courteous service especially since the temperature dropped over 20 degrees while he was here and he was working outside.
Shelli Lavinder - Schwalk
Aug 22, 2021
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I have used AT Klemens for plumbing on several occasions, but used them for an AC repair recently. They were called and had technicians here within a couple of hours. They were so professional and fixed the issue immediately. I may have been lucky they had the parts, but they understand in these temperatures (90 - 100) these calls are important. Thanks AT Klemens, we are cooling off!
Rick Christensen
Jul 25, 2021
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Great service, give an attaboy to Brad and partner, good people to represent organization, not only technicians, also the messengers. RC