Aaron is a great guy, and was super efficient with troubleshooting the motor repair for my natural…read moregas furnace. Trouble located, motor removed, part ordered, insurance company contacted and repair complete in under one hour of MY time (two visits under half hour each). While at my home, I found Aaron friendly and conversant, and careful of his impact in my super clean space. He keeps his tools and work vehicle clean and organized. Four Seasons was the second contractor called for my repair, after I learned that my appliance insurance policy uses his service. The first company I called suggested the wrong repair and even suggested the appliance was old enough parts may not be available, and that I might need a whole new furnace! All for a seized up motor. Thank goodness for Aaron's honest expertise!!

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.

Dan was a huge help installing new HVAC systems at two of my properties in Bellingham. The first…read moreproject was a whole house AC unit which works perfectly. Then at another house he replaced an outdated electric coil furnace with a modern heat pump that is saving me money in the winter and helping me cool my house in summer, while also qualifying for a rebate from Puget Sound Energy.

From the owner: Specializing in existing system upgrades and additions. read more

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!

I have had great experiences with this company. They have been helpful and friendly. Big shout out…read moreto Mindy and Dan for doing everything so safely during the pandemic. Also very much appreciated that I actually had a scheduled time and a call alerting me to arrival.

Went in for a plenum diffuser ... lady very unhelpful....no advice... " if its not on the shelf we…read moredont have it" no wonder the store looks like no traffic thru the much..... minus 10 stars....

The folks who own this company service what they sell with integrity and are quick to help us when…read morewe have any problem with our furnace or with the custom fireplace they installed. We recommend them highly

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.

Wow!! Wonderful, friendly, professional, tidy, experienced…read moretop notch service. From the first inspection visit, to the heater install to the duct cleaning everyone did an amazing job. Answered every question and concern. Pet friendly crew did absolutely everything right. Can't say enough great things about the experience. If your looking for quality, experience and professionalism look to Marrs. Thank you!!

Joel was fantastic. He explained things throughly and seemed to know his job well. He was very…read morerespectful and let us know what was happening every step of the way. Thank you for keeping my mom warm! :)

Great service. John is knowledgeable, professional, and friendly. Answered all our questions.read more

They did boiler maintenance for 20 years for me. Boiler for that time with 3 zones only cost 200 a…read moreyear. Yep I kept tract.Then I wanted continuous hot water so they put in a combination boiler /hot water heater that lasts another 20 years (3 years ago) and it has worked great. Altho it cost more than I had paid in the past I don't have to keep switching out water heaters every 6 years. I think they do quality work at a reasonable price. Never upsell. Always on time. If they break a part they replace it free. They use good parts. They have an annual service which gives you 10% off for the year if you have the annual service. The best heating repair. They put in furnace and AC for my neighbor and found her a great discount. I had discounts on my boiler yet I got quality equipment. This last year they replaced a motor piece in my 20 year old gas insert fireplace. Great Work, Good prices, helpful staff. Ethical.

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.