From making the appointment to completion of the job, service was prompt and top notch professional…read more. Special shout out to Ren who came to service our furnace and fireplace insert, and looked at our water heater. He was proficient, explained his work, and left no sign that he'd just had them in pieces. Highly recommend.

I have mixed feelings bout Northwest Energy Systems (NES). I used them 3 times, once to install a…read morewater heater (great experience; original review), a second time to repair a gas leak (things went terribly wrong), a third time to investigate this oily burnt foul smell in the kitchen (dissatisfied). PROS + Most of the people at NES are nice. Chris in Sales is professional and easy to work with. Dan, the own, went out of his way to make things right when my gas leak repair went REALLY bad. CONS - When I had a gas leak in the garage, this one technician misdiagnosed and replaced a gas pipe that was not leaking. A few hours after the technician left, I called them to ask to send the technician back as I was still smelling gas in the garage. The receptionist REFUSED to send him back because she did not believe I was still smelling gas. As it turned out, the technician had replaced a line that was not leaking. After spending several hours, the technician finally located where it's really leaking. Unfortunately, this is not the end of my ordeal. They put a temporary hookup so that I can at least use the water heater before they can fix the leak on a later day. Then, the temporary hookup leaked! It was after hours, but I called NES and left a message for the on-call person. I ended up having to call the Cascade Natural Gas emergency line as I did not receive a call back, and Cascade Natural Gas shut off my main gas line. Because of the misdiagnosis and the failure to respond to my after-hour request, Dan, the owner, gave me his personal cell number in case I have difficulty reaching them. - The same technician was sent to my house a couple days ago when I requested to investigate the foul smell I noticed in the kitchen. Ok, the previous time, he was reluctant to investigate the issue any further as he thought he had fixed the leak. This time as well, he was reluctant to do anything. First thing he said was "I don't know what to tell you." So, I asked him to at least check for a gas leak. 10 minutes later he left, and I received a bill for $92.40 ($85 trip charge plus tax). As I requested a service call, I did pay (the entire bill), but I expressed to the office my concerns about this technician's unwillingness to help me TWICE. I am not even calling this technician incompetent, but it's a waste of money at least if he's not willing to help his customers. The office promised me to send someone else in the future. It is my Yelp review policy not to name names to avoid "public shaming." However, if you're considering to hire NES and want to know which technician I'm talking about, please PM me. I can share the information in private. ************************************************************ If you found my review helpful, don't forget to hit "useful" and/or "cool"! It helps other Yelpers. If you liked my review, follow me on Yelp or send me a friending request. Stay safe and healthy and keep Yelping!

Next day repair and service for furnace failure. Well…read moretrained technician; professional and polite.

Very professional. Spent time to explain the process. Friendly and knowledgeable. Glad to have…read morethis service done right.

I had Barron install a new 96% efficient furnace and AC system. There were some positives to the…read moreexperience, but there were also several details that left me disappointed, especially considering the cost of a full HVAC installation. The installation team reconnected vents to the master and guest bedrooms and repaired a crushed return line, which I appreciated. However, I noticed the repaired return had multiple unsealed screw holes. While I can seal the visible holes myself with silicone, I have no way of knowing if there are additional leaks on top of the ductwork that I cannot see. More importantly, sealing those penetrations should have been completed as part of the installation. They actually sealed the seams where the old meets the repair. Prior to the installation, we discussed running the refrigerant lines adjacent to the existing HVAC chase. Instead, the lines were run on the opposite side of the hallway and continue through the middle of the laundry room. It's not the end of the world, and the system still functions, but it creates a much bigger challenge to conceal the lines and significantly lowers the ceiling in that area. I was also instructed to pour a concrete pad with minimum dimensions of 18" x 36", so I went above and beyond and poured a 24" x 40" pad to provide extra room. During installation, I was told the actual required dimensions were 36" x 36", which resulted in the installer placing a foam pad over the concrete pad. This could have been avoided with more accurate communication upfront. To bring the new system up to code, two vents needed to penetrate my single-membrane roof. Prior to performing the roof penetrations, Barron informed me that they were not qualified to seal the penetrations. While I appreciate the transparency, this information came only after I had already paid a 50% deposit and committed to the project. This left me responsible for finding and hiring another contractor to complete a very small roofing job. Finding someone willing to take on such a minor project has been frustrating, and two weeks later I am still waiting for the penetrations to be properly sealed. I understand that HVAC contractors may not perform specialized roofing work, but this should have been identified during the estimating process so the project could have been properly planned and coordinated before I committed to the installation. Overall, the equipment appears to be good, and there were aspects of the installation that were done well. However, the lack of communication, attention to detail, and coordination between trades turned what should have been a straightforward HVAC replacement into a frustrating experience.

Per my wife, Barron's website advertises that they can replace knob-and-tube wiring. When she…read moreasked for an estimate, she was told that they cannot do knob-and-tube wiring replacement and to contact an electrical contractor. I would think that an electrical company would be an electrical contractor. Anyway, we will never contact them for ANY electrical work.

Honest. Prompt. Caring. Great workmanship with attention to details. He left the job site cleaner…read morethan he found it. I give 4 Seasons my highest recommendation.

Josh was excellent! He arrived on time and was very professional! Did a quick efficient correction…read moreof our clogged drain pipe and cleaned up our AC coil. Highly recommend!

I had a great experience working with DiMax to add AC to my home this year. Serge was very…read moreresponsive and detailed in helping me figure out the best option for my split level house. Once decided the project unfolded quickly & easily, and they left everything super-clean. The system is a true upgrade to my home and I was especially happy during the heatwave! (Thank you Serge) Highly recommend.

I usually don't leave reviews, but this time I had to. From the first phone call to the final…read moreinstall, everything was just easy and pleasant. The team treated my home with care, explained every step, and made sure I was comfortable before they left. You can tell they really care about their customers. Thank you for making this such a stress-free experience!

I originally called Clean Air to check out an old scary pellet stove in a house I just purchased…read more They came out and did an inspection, free of charge, and then reasonably said "we can't fix this" (it was super old and rusty and definitely not going to be safe) - and so we discussed options. The guy worked through some different heating options with me, since I wanted to replace the old baseboard heaters. After we settled on a mini split heat pump, he stayed and took some measurements and we came up with a quote on the spot, considering the different pump sizes, brands, and layouts. They then worked with me to get the financing to make it possible. The installation for 2 outdoor units and 3 heads was done in a single day, and then another day for the electrical work to hook up. The crew was very nice and respectful of my space. Unfortunately some control wires got crossed during the installation (so the coolant was going to the wrong unit) and it took me a while to diagnose why the temps were so weird between the two units upstairs. But once I called and asked about it, they came right out and fixed the issue and it's been working great ever since!

Not a customer, but a neighbor of a customer. There was no reason why their van had to be parked on…read morethe sidewalk, but it was. This sidewalk connects two sections of a heavily-used recreational trail, but because it was parked on the sidewalk, people had to walk into the street to get around it. Lots of elders in this neighborhood use that sidewalk for their exercise. There isn't a sidewalk on the other side of the street that people can use instead. I contacted the company via FB to let them know, but got no response. I'd waited an hour before posting here hoping that my FB message would prompt them to move it. Didn't happen. It was parked there for at least an hour before I went to FB. I know who I WON'T be calling for HVAC services. Rude, y'all.

Incredible service. I have used them twice, once in an emergency. They were only HVAC company that…read moreactually answered the phone. I appreciate the fast reponse, the great quality work, and the cost was compeltely resonable.

I was charged $232 just for the serviceman to show up at my door. The labor and parts for the…read morerepair were an additional charge. $500 bill for a fan relay switch. I have used them before, and they were reasonable. Not so now. And don't bother to try to call them to discuss the bill. I just paid because I gave up. I don't think they ever heard what I was saying. I felt I was ripped off BEFORE they even got there. I was charged an hour's worth of labor for a 15-minute drive. I'm an old man living on Social Security, but even if I were rich, $232 was WAY TOO MUCH to pay before they even set foot in your door.

Mumm's does the heating/cooling for all the homes which are being built in our new construction…read moreneighborhood. We went thru a record setting cold snap followed by 3 days of snow which is when our 6 month old heat pump stopped coming on this morning. I'll be honest - I expected whoever answered the phone to be surly and not that helpful. Instead, Rachel answered and was not only kind but encouraged me to try something and then call back and let her know. The system continued throwing an error code and I was expecting a long wait time for someone to be able to see us. She got a tech out right away. Not only did he get the issue fixed but is working with the manufacturer to make sure there isn't a bigger issue going on. I know right now there's a lot of demand given the cold temps and issues people have had. Mumms showed their true colors by being friendly and motivated to get it fixed quickly. To me, that says A LOT about them as a business. Thanks Mumms!

From the owner: With years of experience, Mumm's LLC brings a wealth of expertise to handle all your heating and…read morecooling needs. Whether it's installations, repairs, or maintenance, their skilled team has got you covered.Local Commitment: As a local business, Mumm's LLC takes pride in serving the Bellingham community. They understand the unique climate challenges of the area and provide tailored solutions to keep your home comfortable year-round. Quality Service: Mumm's LLC is dedicated to delivering top-notch service. From prompt responses to transparent communication, they prioritize customer satisfaction at every step.

I had Clint Defries's at west mechanical in an emergency situation. The art store in my building…read morewas without heat and if cold weather came in it affects the paints. It was during the holidays so a challenge for installation but west mechanical prioritized the install and the tenant was very pleased and thankful. Clint was also excellent in following up himself with not only me but my tenant Danielle as well. Thank you Clint and West Mechanical for efficient service and fair price for the replacement heater.

great service and quality! we recently needed to upgrade…read moreour water heater. they came out. made a recommendation for one that would save us on our monthly bills but also had some rebates we could use. super impressed. would highly recommend