Williams Plumbing & Heating
Company Overview
Williams Plumbing & Heating is a family-run business. As the top mechanical, electrical, and plumbing contractor in Montana, we set the standard. We provide plumbing solutions for both residential and commercial needs. Alongside plumbing, we provide HVAC, fabrication, and civil construction services.
Business Services
- Bathtub repair
- Drain installation
- Drain repair
- Faucet installation
- Faucet repair
- Garbage disposal repair
- HVAC installation or replacement
- HVAC system repair
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Sewer installation
- Sewer repair
- Shower repair
- Sink installation
- Sink repair
- Sump pump repair
- Toilet installation
- Toilet repair
- Water heater installation
- Water heater repair
- Water pipe installation
- Water pipe repair
Business Location & Hours
Mon: | 8:00 AM - 2:00 PM |
Tue: | 8:00 AM - 2:00 PM |
Wed: | 8:00 AM - 2:00 PM |
Thu: | 8:00 AM - 2:00 PM |
Fri: | 8:00 AM - 2:00 PM |
Sat: | Closed |
Sun: | Closed |
Recommended Customer Reviews

Doug H came out and solved our mystery problem on our furnace motor fan! We had another company come out before Williams and they could not solve it. Doug is a great problem solver, carefully thinks through how the system is working, he was patient, he checked things as he went, rechecked them again and kept at it until he finally solved the problem. He was careful with equipment and mindful of our house. He went above and beyond! Thanks Doug!

Our heating system finally had enough of -20 temperatures and blew up at 4:30 AM today, flooding our basement with an interesting geyser of hot water and pipe scum. Given the fact that we've had extreme cold for the past week or so, we expected to have a long wait for anyone to come out.
Shockingly, at about 8 AM we got a return call from Williams and their plumber, Kade, was at our door shortly thereafter.
To say that we are thrilled with both Williams and Kade is the understatement of 2024. We're still in the process of having the boiler/pipes/damage repaired, but Kade and Williams are lifesavers.
Not only did Kade show up way earlier than we would have ever expected, he quickly started working on fixing the issues and was an absolute pleasure to deal with.
What more can you ask for in an emergency?

Williams came out so assess our heating system. They came quickly, however they certainly charged for that!
The serviceman said we need a new boiler and gave us a quote for $13k. That quote had no breakup, just one number. When I asked for a detailed quote... heard nothing. Seriously dodgy.

The worst! Charged to tell us that what our contractor said we needed was wrong, saying we needed insulation and not a plumbing fix. Completely inadequate, incompetent. Lost our key. We have worked with them in residential and commercial and it has never gone well.

Poor customer service. I have no heat or hot water. They took my 21,000 for replacement but won't return my calls to schedule the service.

As a local, and I mean born and raised in Bozeman, this business was always our go to company, so naturally when we needed them last winter for heating issues in our home, we called them. I didn't know that they had changed the way they bill and charge the customers. There was NEVER any mention of this. It is now a price per job billing. We ended up with them coming out three separate times, each bill was over 2,000 dollars, and they want payment that day! They never did fix our heating issues, each time it was "" well we have some bad news, etc"" our heater kept shutting down in the middle of the night, we awoke to a cold house. Well they didn't know why.... Three visits, over 6,000 dollars, and never fixed it! This year when we turned on our heater, same issues! I called Bell , I called Campbells, Never got a return call. Only voice mail. I called Manhattan heating and plumbing, a REAL live person answered the phone! They had someone at my house the next day! He fixed our heater in less than 20 minutes! All it needed was to be re- wired! I highly recommend this business and will tell everyone I know DO NOT USE WILLIAMS EVER! I feel so angry at them for ripping us off, taking advantage of us and all our hard worked dollars! Shame on you WILLIAMS! I hope the others put you out of business!

Best plumbing service in Bozeman. Rivals any plumbing service we use in the San Francisco Bay Area.
Chris Goding our tech was on time, professional, friendly and experienced. Chris fixed the problem with our toilet and we would highly recommend Chris and Williams Plumbing. We have used Williams Plumbing four times this summer for new tankless water heaters, a new toilet, fixing an older toilet and HVAC and Williams has been fabulous.
Our only complaint is that it can take weeks to get a new job scheduled.

They have terrible communication. I feel like the help in the office is like a High School Student. They do not have anyone in the office that can give you any informations on size of water tanks, what kind they stock, what they would cost. The answer is that the technician can tell you that when they come to give you an estimate. The estimate will cost you $200. The estimate is not given to you onsite, but most likely next day. You then learn that the price they want to charge you is twice what a regular plumber charges for just the water tank. If the office girl could have told me how much they charged for a water tank, I could have said no thank you and checked another plumbing company and not been dinged for $200. It also wasted and hour of my time. The estimate charge is a total scam....

I called them for a leak in the wall. They pulled a shower fixture off and said no, not here. That cost me $200. They didn't replace the fixture properly so I had to call them back. They said it was clogged up by mineral deposits (but was working fine before they pulled it off). The fix cost me over $500. When they replaced it this time, it was still loose. We fixed it ourselves. There was no pride in their work, and no apology. Larcenous and shameful behavior.

Now that the project is finished, I want to thank Tyler, Jeff and Brian for their professionalism, for being always prompt, polite and, knowledgeable. We purchased our home in June 2022. It had the original heat pump and a water heater that was way past its prime. Brian and Jeff replaced it with a single on-demand system that takes care of the entire house. They were nothing short of amazing. Our realtor had given us three recommendations for plumbers. I am certain the other two are very good, but I am so glad I selected Williams. I highly recommend Williams Plumbing and Heating.