We had to replace the 25 year old manifolds on our radiant floor heating. Dennis diagnosed the problem, noted a fundamental error in the initial installation, rerouted some of the piping, and completed the work in a timely manner. We really enjoyed dealing with him. The front office was prompt, communicative, and personable. And the price was reasonable (less than the quote from the other qualified contractor). read more

Really happy with this company. They switched out my tankless water heater, fast and knowledgeable! Super professional from start to finish. Marisa in the office was stellar and really easy to get ahold of whenever I had questions. Great experience overall. I'll definitely recommend them. read more

When performance and reliability means everything in competitive shooting, the folks at Carlson never disappoints. Your lowers were exactly what was needed for my wins! Thank you read more

Carlson Mechanical - Heating & Air Conditioning/HVAC Near Me

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I highly recommend Carlson Mechanical and its owner Mark. I was in the middle of a difficult remediation process after my general contractor incorrectly installed a hydronic heating system in my home, creating serious technical and safety concerns. Mark visited my house twice and identified multiple critical issues. He clearly explained the extent of the poor workmanship and why the system was unacceptable. After his second visit, Mark went above and beyond by providing a detailed expert opinion letter. This document was instrumental in strengthening my case. What truly sets Mark apart is his integrity and generosity. He did not charge for either visit or for his expert input. At a time when I was dealing with stress from a construction disaster, his honesty, professionalism, and genuine desire to help were deeply moving. I am grateful for his support and would recommend Carlson Mechanical without hesitation to anyone in need of a knowledgeable boiler and hydronic heating specialist. read more

I had a routine but thorough check of my in-floor hydronic heat system, not because I was having problems, but because I wanted to see if any maintenance was needed at 17 years. After a shocking opinion from Greenwood Heating that I'd need a complete replacement of my boiler system (to cost over $20,000), I carefully read websites and reviews of several companies and decided to call Carlson Mechanical as specialists in hydronic heat. Of course, I wasn't eager to spend $400 for another evaluation, but a second opinion was essential. (The charges for this visit were clearly explained in an email ahead of time.) Matt showed up on time. I did not tell him that Carlson was the second company to check the system. He was thorough, polite, and clear with explanations, even anticipating questions that I probably should have been thinking of. He concluded that my system was just fine, no work needed. He told me what to look out for as indicators of potential problems, but said that I probably wouldn't even need another maintenance check for 3 to 5 years. What a relief! I'm so fortunate that I called Carlson and only wish I'd chosen them the first time. read more

Our tank water heater died for our house hot water and infloor heating hot water. Big expense! We knew this day was coming soon. Owner Mark gave 3 written estimates for different options. We decided to go with tankless with mini boiler combo. These guys did the best job! It took a full week of work, 8 hours a day to get a whole new heating system and all the new pipes, valves, etc put in and they did a fabulous job. Very professional. Friendly. Helpful. Knowledgeable. Our new system is humming along and working just as promised. Look, these guys clearly know what they are doing and you will get quality. Likely they are not the cheapest option however why go cheapest with such a large and important home investment. It's about getting what you pay for and knowing it was done right and knowing they will take care of you of something is wrong. read more

Carlson Mechanical - Our new combo tankless and boiler system - Heating & Air Conditioning/HVAC Near Me

A big shout out to technican Dennis, he was thorough, knowledgeable, and all around excellent servicing our gas boiler funace this month. We will be a customer for life with Carlson Mechanical from here on out!!! Thanks. Jerry G read more

Outstanding. Your punctuality, and professionalism was way beyond all expectations. Riley, thank you! He made the repair and its good as new now. My water heater sprung a leak yesterday and my landlord called Carlson Mechanical to check up on it. It turns out that ours was ancient. I was afraid the whole changeout would make a big mess but Carlson Mechanical proved me wrong. While no plumber is cheap, the rates at Carlson Mechanical seem reasonable, and the quality of the service is outstanding. It pays to do things right the first time and I never have a call back with them. Overall, service was beyond excellent and I would highly recommend Carlson Mechanical for any of your plumbing needs. read more

From Amy in the office to Dennis the boiler tech, I'm thoroughly impressed with Carlson, and I'm picky. Originally scheduled for Tuesday ( 12/26/23 ) to do a boiler PM, Amy called to tell me that Dennis had been re-directed to a no-heat situation, elsewhere. I understood, and thanked her for calling. Fast forward a week later, and knowing that not too many contractors will even work on radiant heat hot wat water boilers, was just happy that Dennis showed up. Not only did he work swiftly to troubleshoot why my boiler would not stay running, but explained each step of his findings as he worked. He got it up and running after finding a water valve had been shut for some reason. Not the most economically friendly to do business with, but knowledge is priceless, especially when it comes to heating your house. read more

Like cold showers? Then you'll love Carlson. I have a VERY expensive German heater and boiler (which they installed), and they have absolutely no idea how to service it. I have spent thousands of dollars on them only to have repair guys try and charge me hourly while they try to download manuals on their phones and watch "do-it-yourself" videos on YouTube. I also want to add that this is not some one-time offense that has thrown me into a fit. Rather, it's been a slow-motion train wreck that has played out over the last 18 months. Anyhow, make sure that anything you buy is sold from someone who is also capable of servicing what they sell you. I also strongly recommend getting a fixed-quote before letting anyone work on your system. read more

We didn't even know Mark had done the original install of the boiler at the house we bought until we went to sell it and our buyers wanted it serviced. Mark came through and helped us in a bind! Professional, timely, and went above and beyond what he needed to do to help us out. I'd use Carlson Mechanical again in a heartbeat! read more

They did multiple repairs to my radiant heating system such as replacing two water temperature sensors that had gone bad and were giving inconsistent readings. When other companies have come out to service this system, they've spent quite a bit of time just trying to figure out how it works. Carlson did all of the repairs in only 45 minutes start to finish. Highly recommend. read more

5 stars is an understatement! Our first contact with Carlson was in January 2015, we were debating between radiant heat and a heat pump. The other Mechanical company did not return 2 phone calls, Mark returned our call, came out discussed pros and cons of radiant heat and sent us a proposal. No pressure or hard sell, just an honest discussion and an estimate. It took us several months to choose radiant heat, when I called back in April the estimate was still good and we were scheduled. That was the best decision we made! We love our water heater and radiant heat, it is so quiet and comfortable. The Carlson team was punctual, communicated what was going to be done daily, when to expect them and they always left the work area clean. We just had the pleasure of working with Carlson Mechanical again, even during their busy season service was still top notch! We had to break up the concrete in our basement as part of a remodel so of course knowing how much we love our radiators upstairs we wanted to install in floor radiant heat in our basement. Again, the communication and work ethic provided a top notch experience. read more

I can't say enough about the job that James and Arik did at our home. We had a gas meter installed at our home, and initially talked to Mark about converting a number of appliances to gas. Mark came up with a great plan, and we broke the project into a couple of phases. Phase 1, our brand new on demand hot water system went in seamlessly. James and Arik were amazing! With 4 people in the house, it is so nice to not run out of hot water, and it is nice knowing that we aren't heating water when we are not home. We can't wait for phase 2 and will look forward to working with Mark, James, and Arik on future projects! Thanks Carlson Mechanical! read more

We've hired Carlson Mechanical on a number of occasions over the past several years. They have always resolved our issues professionally and promptly and in a quality manner. Not only are CM's technicians courteous but they also take the time to fully clean up when the job is done. Also, on one occasion, CM referred us to a third party for some plumbing needs. Even then, the work was completed thoughtfully and professionally. I strongly recommend Carlson Mechanical. read more

We've had on-going, very distressing issues with our heating/hot-water system for over 6 years and have been through 3 companies trying to get it figured out, always with the same results - lots of expensive bills but no real fix - until we found Carlson. The owner Mark was amazing, taking a very logical and scientific approach and even getting the Factory Rep. to come in to try to solve this difficult case. Long story short, they solved the problem that no one else could, and we now have a reliable and efficient heating system again. Btw, their Techs. Dennis and Riley are fabulous as well - clearly very well trained and highly skilled, and a pleasure to work with. Just so you know, I rarely write reviews, but these guys are really amazing - If it were possible to give them 10 stars, I would! read more

This company is truly amazing! In a day and age where customer service and quality seem like distant memories, owner Mark Lee and his staff take care of business like the good old days! We use a lot of different contractors in our real estate business and WITHOUT QUESTION Carlson Mechanical sets the bar! From the initial visit to prepare an estimate, during various design consultations and changes, then for installation, and eventual completion, every employee treated us like we were their only client and truly appreciative of the business. Friendly, efficient, conscientious, and of course proficient in every aspect of radiant heating, Carlson Mechanical is INCREDIBLE and worthy of our highest recommendation without hesitation! read more

Completely unprofessional. Gave same-day service to install a hot water tank in March, and I was pleased with that. When the tank began to leak in July, Kolyn (the owner) avoided my calls, didn't show up when he said he would, and didn't return messages. Stand behind your products, Carlson Mechanical. Give this business a wide pass! read more

These guys saved my bacon two weeks ago - we had a major steam leak in our system that our former mechanical company walked away from. Dennis made room in his schedule, figured out a solution, and had the problem solved in a matter of two afternoons. Wow. read more

Mark, the owner truly shows through his service how he cares 100% about his client's best welfare. He does thoroughly professional work, and shares his vastly extensive experience to provide the best service possible. He is honest and communicates in both a very personal and professional manner. Our coop condo unit has used his business over the last decade, and we are always totally pleased with every aspect. Sue & Bob M/Greenlake area read more

Installed new boiler and new radiators in our 100+ year old Craftsman. As close to perfect as you can get -- on quality and timeliness. Our new boiler has been running for over 3 years. Never a problem, and we have reduced our monthly bills by over 20%. Can't thank Carlson enough. read more

Really bad service. I called them and described my issue. When they came to my house they said yes, I had the problem that I described. But they didn't budget enough time to repair it, so they would need to come back. On the day that they were scheduled to return, they canceled the appointment because they decided that they needed a specific part for my repair, so they wanted to order it. (They hadn't ordered the part prior to that, despite scheduling the return trip three weeks earlier). After weeks of silence I called and asked for an update, and the scheduled the return trip (clearly, they wouldn't have scheduled it if I hadn't called). When they returned for the repair, they charged me for a second $228 "service call" even though they were at my house earlier to look at the problem and leave. And they didn't use the special part that they had delayed my repair to order. Mark, the owner, was a real disappointment. There are plenty of reliable, customer-focused service professionals who do this work. I will never use Carlson Mechanical again, and you shouldn't either. read more