AT Klemens
Company Overview
A.T. Klemens has been delivering commercial roofing, electrical, plumbing, and HVAC solutions in Great Falls, MT since 1928. All our technicians undergo rigorous training to provide you with excellent workmanship and reliable customer support. We offer comprehensive installation and repair services across all departments. Our commercial roofing services are of the highest quality. Our approach merges top-grade materials with excellent service to satisfy our clients' needs. We fully guarantee our roofing services and provide bonding. You can count on us for the following services: Emergency repairs available 24/7 Built-up roofing systems Single-ply systems Modified bitumen solutions. We are fully capable of addressing all your electrical needs at A.T. Klemens. We offer service and repair for all electrical problems, along with new system installations. Our emergency technicians are available around the clock for immediate assistance. Our electrical services include: Design and build solutions Telecommunication and computer wiring. Our journey started in 1928 as a modest family-owned sheet metal shop. Over the years, we have grown to offer pipe fitting, roofing, plumbing, heating/cooling, and electrical services. We are a unique company in Great Falls, serving as a one-stop shop. One Company, One Answer. A.T. Klemens has a rich history of family ownership across generations. Currently, our corporation consists of a board of directors and many shareholders. The longevity of our board and shareholders is a point of pride for us! Dennis began his journey in 1986 as an apprentice electrician and now serves as the CEO.
Business Services
- Bathtub installation
- Bathtub repair
- Drain installation
- Drain repair
- Electric inspection
- Electric installation or replacement
- Electric panel installation
- Electric panel repair
- Electric repair
- Wire installation
- Wire repair
- Electric vehicle charging station installation
- Faucet installation
- Faucet repair
- Garbage disposal repair
- Gas line installation
- Gas line repair
- HVAC installation or replacement
- HVAC system repair
- HVAC system maintenance
- Light fixture installation
- Light fixture repair
- Outlet installation
- Outlet repair
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Sewer installation
- Sewer repair
- Shower installation
- Shower repair
- Sink installation
- Sink repair
- Toilet installation
- Toilet repair
- Water heater installation
- Water heater repair
- Water pipe installation
- Water pipe repair
Business Location & Hours
Mon: | 8:00 AM - 5:00 PM |
Tue: | 8:00 AM - 5:00 PM |
Wed: | 8:00 AM - 5:00 PM |
Thu: | 8:00 AM - 5:00 PM |
Fri: | 8:00 AM - 5:00 PM |
Sat: | Closed |
Sun: | Closed |
Recommended Customer Reviews

We had an appointment set with them over a week in advance for them to come look at our pipes. Friday rolls around and no one shows up and no one calls. I call that afternoon and the receptionist explains that she doesn't know what happened or why they didn't show and tells me that she will call the tech and get back to me. After an hour I call again due to the fact that it was around 4:30 and they close at 5:00. She explains how she had just gotten ahold of her guy and he got stuck on another job and would be in Monday. I was frustrated because we were going to be waiting longer, but was said that was fine. Monday comes around and again no one shows up and no one calls. So I went ahead and called them AGAIN to find out why they weren't showing up. The receptionists answers the phone and immediately says, ""oh they are coming I promise, I promise."" So again I say okay and still no one showed. Finally on Tuesday they show up and after being here for multiple hours we find out that the job was never finished and they missed some pipes. Now it going to be a week before they can come in and complete it. Not happy with the service done by this company and will most likely look for other options next time.

We have used this company since 2004 for routine things.
As it happened we had a water leak yesterday evening.
Called them and the answering service said the tech would be i n touch with me shortly. He called within the hour, came prompy and fixed it wirhin an hour. He also appraised us of the hourly rate for the overtime hours. That was appreciated.
They have us as customers forever.

Had my water heater replaced. Showed up on time Dave did a great job and I love my new water heater. If I ever need any plumbing done in the future I will call and recommend A.T. Klemens

Terrible company. Scheduled 2 weeks in advance to pressure test gas lines to turn on heat at a residence and they call the afternoon before to cancel, AND they were not even nice about it. Told me it was ""My problem"" to find another plumber on such short notice and that they were too busy for my work. Luckily their competitor was willing to take on the business....