I talked to Nathan on the phone. They are Amazing! They came out the next day fixed the a leaking pipe that could have flooded are entire finished basement!!!! I could not recommend any better plumber. Thank-you So Very much!!! read more

Nathan & Robert installed a new boiler and tankless water heater for us a couple of years ago and it was a very complicated & involved process that involved a lot of overtime. They both worked long hours to finish this work so our family would not be overly inconvenienced. Our son, who is a licensed electrician commented later that it was really quality work, and he has seen the work of a lot of plumbers on the construction sites he works. We would definitely recommend them to anyone who needs a trustworthy and professional plumber. Dave T. read more

Great value!!! Nathan and assoc, arrived at my home timely and installed new Moen Kitchen faucet. Very friendly and accomodating. In fact I was asked permission to use two paper towel sheets! One of my best experiences with plumber issues. Don't hestate to try them if you have't all ready. read more

TLDR: DO NOT USE THESE GUYS. 11/25/2023 EDIT - Response to Blue Mountain's response below. FACTS: I provided BOTH a picture of the existing trim AND the trim I wanted it replaced with. Nate did not respond to the pictures sent and assumed that the existing trim was Moen. Happy to provide screen shots of the conversation. FACTS: Upon arriving and seeing that the existing trim was not in fact Moen, Blue Mountain proceeded, without my consent, on replacing with like for like. Had he called and clarified BEFORE making this assumption, I would have had him replace with the appropriate valve, knowing that it would cost more. FACTS: Being a reasonable owner, I accepted the incorrect trim piece and chalked it up to "mis-communication" and would have been okay if the replacement trim ACTUALLY WORKED. FACTS: THE REPLACEMENT TRIM NOW DOES NOT FUNCTION PROPERLY AND WAS NOT INSTALLED CORRECTLY. This has been confirmed by my new plumber. I called and informed Blue Mountain that despite multiple attempts to make the replacement work, it does not work. We do not have hot water at the shower head. I stated that prior to Nate replacing the trim, it worked fine. That I am happy to pay for the work that was done correctly, but would like for him to fix the existing trim prior to paying for that scope (very reasonable. He then became very arrogant, rude, and abrasive and stated "find a new plumber, I don't like how you're coming at me." exact words. He threatened a lien against my property. Keep in mind that the only thing I said was that it is not working and it was before, that's it. I expressed disbelief at this blatant regard for common decency, asked for empathy as my tenant did not have hot water, to which he replied with nothing but callous arrogance that I would question his work. DO YOURSELF A FAVOR, TAKE NATE'S OWN ADVICE AND HIRE A DIFFERENT PLUMBER! You will sleep better at night. The details: I contacted Blue Mountain (Nate) in early November to replace shut off valves for my kitchen sink, bathroom sink and toilet. I also asked him what it would take to replace the existing trim (controls) on the shower. I provided pictures of the existing trim and asked what it would take to swap this out with a Moen trim kit. I also asked specifically if he would need to replace the valve (assuming he would need to do that). After not hearing back from him via messages or emails, I called to follow up on the request. He stated he would not need to replace the valve and that he can "rework" the existing valve to receive Moen. I specifically asked again if this was possible and he stated "they do it all the time". When he came to do the work, rather than replacing the trim kit with a Moen trim kit, like he had discussed, he replaced it with the exact same kit that was on there (a Mixet trim piece). He DID NOT call me to discuss prior to doing the work. He DID NOT ask if I wanted to replace with the proper Moen Valve. He instead just replaced the kit with the same model. To top it off, the replacement does not work correctly and my tenant has been without hot water at the shower since the install! This is winter in Colorado. When asked to fix the work so my tenant could have hot water, he stated it was not his fault. I simply stated that "it worked before and now doesn't", he became belligerent stating that he would put a lien on the property of I didn't pay for the work he had done. I stated that I would be happy to pay for the work he did correctly and would give him a chance to correct. At that, he said find a new plumber, I can't help you. Very sad to see a contractors blatant disregard to do what is right. Meanwhile, in the middle of winter, my tenant still does not have hot water. Very sad. I would not recommend this plumber to anyone. Stay away! read more

AMAZING service after 2 failed attempts by a large mainstream HVAC company to fix my air conditioning. Nate picked up the phone on the first ring, walked me through his quotes, and scheduled a time to come by. They were prompt and professional, welcomed the dogs out to assist with refilling my refrigerant, and offered to show me what steps they were taking. Will only be calling this company for any future needs. Their prices are competitive, their service is quick, they are responsive, and the technicians were great! read more

I was having an issue with my water heater and I called to see about getting it serviced. Well, calling this place was a mistake. The man that answered the phone was rude, arrogant, and rather than answer questions, had the attitude that he was the professional here and not to bother him with questions. RUDE ATTITUDE, PASS ON THIS ONE! read more

I highly recommend Blue Mountain plumbing, heating &cooling. Nàte does exceptional work. His apprentice is great to work with too. My husband and I make this company our first call for service, repair and installation. Very happy customer, NL read more

As to Blue Mountain Nate's work: 5 STAR I have worked with Nate McComis, the owner of Blue Mountain, for many years, and used to ask for him by name when he worked for the big company. He was the only one I would let into my home for all things heating, cooling, and plumbing. Nate is a real problem solver and has really solved some doozies in my 1890 Victorian house- Heating, plumping, and cooling! The best solutions have all been from Nate. Simple things from a toilet replacement, to an attic based supplementary AC to my annual cleaning and maintenances. Plus, the bathtub always needs a draining call every year too. I was so excited when Nate went on his own and I have had the chance to use him most recently for an AC system check. He came out and his new business is as efficient, professional as any big company- nice invoices, service call windows, communications... and of course the quality work for a good value. You cannot go wrong with Nate and this company for your home heating, cooling, or plumbing issues! read more

Nate was able to swing by earlier than scheduled. They got the piping problem fixed quickly and within a reasonable price. This is a great company and I'd recommend them to anyone. Plus they played with and put my dogs at ease. read more

Called to set up an appointment and was able to get one set for the very next day to get my furnace cleaned and my AC lines inspected. They showed up on time and got the job done efficiently and quickly and was very friendly and professional. 10/10 would recommend this company to everyone I know. read more

we were set up by HWA with this company Blue Mountain Plumbing , paid our $100 deductible when they came ( a guy called Travis) and saw the issue which then they needed to order a part. When i spoke to them 6 weeks later asking what's going on , they said part is hard to find , and i have never heard from them since , and both HWA and myself cannot get hold of them . They are a scam , so please beware!! Now HWA charging me another $100 to get a different plumber because it has been so long ‍ read more

Blue Mountain installed a second water heater, and a humidifier in November. They did a good job so we also got them to replace a bad faucet. I contacted them a few days ago to say the humidifier didn't seem to be working properly. They came a couple of days later and I was sleeping so soundly that I didn't hear the doorbell or the calls on my phone, so I missed the appointment. They were very kind when I contacted them to apologise, and they came back the next day, fixed it (replaced a part) and didn't charge me. I didn't pay extra for any warranty when I got the humidifier and heater installed, so that was great! I recommend them. read more

We have used Blue Mountain and Nathan for a number of different projects is our 100+ year old house. He has helped us with our heater, swamp cooler, and kitchen faucet replacement. Most recently we had a leak in our shower that he came and fixed by replacing the shower valve. Nathan is always prompt, professional, honest and reasonabily priced. Highly recommend. read more

Great company services, I highly recommend Blue Mountain - Keith did a great job fixing and delivering full AC maintenance.

Oh heck. Nevermind about my previous rave review. Yesterday I went down to the furnace room to change the furnace filter and found my basement flooded with water. I called Nathan. He was absolutely *sure* it was that the AC had frozen causing water to run through the furnace. He offered to come fix it for an estimate of $139. I had just paid him over $900 in July to fix both the furnace and the AC. There was no sense of possibility that he had made any errors in July that was causing the problem. He was so sure about this additional problem that $900 didn't cover. Thank god I called my friends to take a look at it for me. Nathan had simply not hooked up the pvc pipe to the humidifier after doing his work in July. I guess I'm still searching for a Plumbing Heating and Cooling person for the future. Bummer. read more

Nathan's great. After temperatures dropped below zero, we realized our main floor fireplace wasn't igniting. He was able to get me scheduled for an appointment within 24 hours. Other competitors had estimated nearly two weeks out, for a visit. Professionalism: He called first, and got out to me an hour early. When he arrived, he put on shoe covers, diagnosed the problem, and recommended a solution within ten minutes. Service: Very friendly and trustworthy. Accepted Visa and used quality invoicing and payment tools. Prices: Only $39 for the trip and diagnosis fee. The replacement part price seemed on-par for a Heat N Glo fireplace. Overall, I will definitely use Nathan and Blue Mountain in the future. Highly recommended. read more

Nate came to my home today on time and ready to fix whatever was wrong with my gas fireplace in my bedroom. Typically a plumbing/heating person can't do this type of work but Nate can. He had it going within an hour, cleared a clog in the gas line and cleaned the whole darn thing out. It looks better that I remember when new and it works great. I would hire him again in a heart beat. Thanks Nate! read more

We had a significant drop in water pressure at the back of our house. We have a turn of the century bungalow and old plumbing. Nathan came out and fixed our issue quickly, professionally and is just a super friendly guy. He throroughly explained everything he was doing in a way that was easy to understand. It was a big project and he worked efficiently and PAYS ATTENTION TO DETAIL!! We are so pleased with his work and can't recommend him enough. We are definitely keeping his number on hand for our home and rentals. read more

After a weekend trip to the mountains, my husband and I came home to find our water heater had been leaking, and our drain was clogged for some reason -- so the water seeped into our kitchen floors. We have only been homeowners for a little under two years and this was our first major problem -- we were a little overwhelmed and knew we needed some professional help. Using Yelp as my guide, we called around to more than 7 different plumbing/HVAC companies -- Blue Mountain being our 2nd to last. I personally did not interact with Nathan, but my husband has nothing but good things to say. He was easy to get in touch with, gave us a quote over the phone that was SIGNIFICANTLY less than the other 6 companies, and scheduled us in within 2 days. He was friendly, fast, and most importantly, he knew what he was doing. In no time, and without having to sell my first born child to pay for it, Nathan had our new water heater up and running again. On top of that, he took a look at our A/C (which is also having problems) and gave us a quote on that for no extra cost. According to my husband -- "Nathan has really figured out how to run a good business". We will happily recommend him to anyone and everyone, as well as come to him again for our future needs. read more

My wife and I cannot recommend Nathan, the owner of Blue Mountain, enough. He is honest, thorough, reliable and offers far more reasonable prices than the giant plumbing/heating/air conditioning companies with the same skill set and attention to detail. In fact, we sought him out after 2 large plumbing companies were at a loss as to how to fix our hot water heater. We handed them large sums of money repeatedly and nothing ever was fixed for long. After Nate came to inspect our system we have not had any issues whatsoever. He is a pleasure to work with and we're happy to support his business. read more

We called Nathan a couple of years ago for a repair on our AC unit, he came quickly and fixed our issue. Today he came again to check out our unit after another company tell us we needed to replace a part during an inspection, and the repair was over $1200. Nathan evaluated and found we just had a drain that was clogged. He promptly fixed it and saved us well over $1000 for a repair that didn't need to be done. I trust that Blue Mountain is going to be truthful about what is needed and not try to gouge their customers. They have been able to come quickly both times we called them. We will definitely be calling them in the future, and would absolutely recommend calling them! read more

I can't give enough stars to Nate and Blue Mountain. Over the last 2 years he has helped us out with emergency fixes on both our hot water heater and furnace. Each time we called he showed up the next day when he said he would, and prices are always reasonable. So nice to find someone reliable! read more

Response to Blue Mountain Heating's reaction: ONLY TWO people have ever been in my unit to hear the hum. Blue Mountain Heating makes it sound as though a dozen people were inside and none heard it. The TWO people were the HOA president and the previous furnace man. The HOA president said yes, he could hear it. The furnace man said he could not, but then said, "My ears are burned out." He admitted to having tinnitus and hearing loss. I had invited Nathan inside my unit to listen, but he declined. I had invited the head of our property management to my home to listen. She declined. So there you have it: the FACTS. And now it's a year later, and there's NO heat for three weeks now as of this edit (Oct. 22, 2020). The unit is set to turn on when the outdoor temp hits 68 degrees. It's been as low as 30's overnight -- and NO HEAT whatsoever. A fix to a heater is supposed to last MORE THAN ONE SEASON. The annual HOA meeting is coming up and I will gun for HOA president. I certainly know which HVAC company we won't be using anymore. read more

I called and scheduling an appointment for Nate to come by and take a look at our gas fireplace. He called prior to arrival and actually was a few minutes earlier than scheduled which was great. A true professional, he got right to work and serviced our fireplace. After the service the fireplace looked like new and worked like a charm. Plan on using Blue Mountain for service on my AC, Furnace and gas fireplace. Finally someone I can trust! read more

At first I was so happy that he could get to my house within two days to fix my swamp cooler. When he got here he said it was the pump and we had him replace it at a reasonable price. It seemed to work but the next day it was not working again we called him and he said to change the filters that he told us the day before were fine. After we changed the changing them it worked but we feel that if he would have did that the day before then the pump would not have to have been replaced. I think that he changed the pump not nowing what was really wrong. We would not recommend this company and will not be calling him again. read more

Nathan is great! He not only fit us into his busy schedule when it worked for us (during a small window of time), but he was very reasonably priced and generous with his services. read more

f I could give this company a 10 I would. Approx. 2 weeks ago my sink backed up in my kitchen. Nate came out snaked the line. Both Nate and I thought this would be quick fix. Oh no Nate was here for 4 hours snaking. He went down in the basement and saw that the line had a belly in it that was not allowing things to pass. After getting that loose we thought all was clear. A week later the sink backed up again. Nate went down into the crawl space and the line was again plugged. After a inspection of the line and nasty smells of sewage coming from the crawl space he now found that the pipe had actually split in two places since his last visit. Nate advised that the pipe was going to have to be replaced. It's now getting late and Nate stayed and put in 25 feet of new pipe. Nate I can't thank you enough both times you put in countless hours trying to get that pipe to drain. Now to get that smell out of my house. I came a across a product called Bio Cides and for the nastiest smells this stuff worked like a charm. So for anyone who has bad smells or the dog has been skunked this stuff works, at least for me it did. Not harmful to pets or humans. Nate thanks again and will recommend you to anyone. read more

I had Nathan come out to turn on my evap cooler, based on the reviews here. He sent me an email reminder the day before and showed up promptly at the beginning of his 2-hr window. He's extremely reliable and knowledgeable. He patiently explained to me the issues that my cooler has. I would use his services again and highly recommend him. read more

Appointment was set up the next day after I called. Was efficient and solved the plumbing problem right away. Nate also did a few small things to help avoid and hold off any problems in the future. Will definitely use this company again. read more

My water heater started leaking on a snowy Sunday. I didn't know who to call so I trusted the reviews I saw here. Nate drove from Thornton to Littleton, explained my options, picked up a new water heater from Home Depot and installed it quickly and efficiently. I have already recommended him to my friends, and will definitely call him again! I am more than happy with his work! read more

Not sure why this company has high reviews my experience was horrible. The website says they have 24/7 emergency service. Called at 9:20 pm left a message. Called again in the morning at about 5:30, no answer. Called again at 9 this morning and someone answered. I explained the issue we are having with our water heater. The man on the phone said he wouldn't come out for their $39 assessment fee to tell me what's wrong with our water heater just so I could fix it myself. When I questioned his cost on the part needed for the repair (as I had done some research myself) he replied that the part may cost $10 but I have to make a profit and will end up charging you $100 for the part plus labor and the assessment fee. When I tried to question why he wouldn't let me pay for the assessment like he quoted without having him do the actual repair yet as I would need to discuss with my husband the cost and he sleeps during the day because he works the night shift the guy on the phone said he is not a non-profit organization. I told him I never asked for free service I just need to be pointed in the right direction so I can make an informed decision. I also said that telling me he wouldn't waste his time on a $40 assessment call when I may not use him for the repair does not give me reason to want to work with them for any future issues we may have and what about just general good customer service? He then proceeded to tell me how he has to charge a large amount for what is possibly a small job. He said that what may take a few mins and parts costing only $10-50 that in the end it will cost me upwards of $300 and apparently the cost is an issue for me so he can't help. I told him their customer service is horrible and hung up. read more

We had two different problems, one being plumbing and the other being a furnace maintenance. We were very impressed and please with BlueMountain's knowledge of both issues and economic solutions. There wasn't any up selling. We will call the next time for any plumbing and havc issues. Thank you !! read more

I called Nathan to get a quote on repairing our swamp cooler. He gave an estimate over the phone and a time that he could come. He sent an email confirmation, called 10 minutes before he arrived with in the quoted time frame. He fixed the swamp cooler and we now have a cool house. Nathan is very professional. I would highly recommend him to anyone needing the services he provides and will call him again. read more

Had the air conditioning go out during 95+ weather. Lousy timing. Made a few calls and got estimates of trip charges and how far out they were booked. Everything about working with Nate was professional and easy. He answered his own phone, was available the next day, and sent email confirmation right away. He called to let me know he was on his way on time the next day. Upon arrival he quickly diagnosed the problem, had the part on the truck, had it fixed in no time, and charged what I believe was a reasonable and fair price. He took credit card payment on his table or notebook computer and sent the receipt via email, as requested. He was friendly, trustworthy and courteous. I would definitely recommend him to friends and family. Service like this is hard to find. read more