RSJ Mechanical earned our trust from the very first call. Their excellent reviews led us to contact…read moreSteve Winn, the Service Manager, for an evaluation and bid. Steve's positive attitude, problem‑solving skills, and willingness to work within our budget were extraordinary--qualities rarely found in customer service today. Our home presented several unique structural challenges, yet Steve approached each one with confidence and creativity. His crew was fast, professional, and patient, taking time to answer even our odd or off‑the‑wall questions. When an unexpected structural issue came up, they immediately worked together to find a safe, professional solution. Their teamwork and genuine care made us feel like family, not just customers. After installing our one‑of‑a‑kind air‑conditioning system, the team returned the next day to ensure everything was running at 100%. That level of follow‑through is exceptional on its own--but it didn't stop there. A week later, Steve called with news that truly amazed us. On his own initiative, he contacted the Rocky Mountain Power Wattsmart Program on our behalf, and we were approved for an incentive that helped offset the cost of the rewiring and installation. Who does that? It was an incredible act of service and integrity. Steve Winn and his team are, without question, #1 in Idaho. Their professionalism, kindness, and dedication made a difficult project feel manageable and even uplifting. Sincerely, Two grateful old folks from Shelley, Idaho David and Karen Petersen

We made a phone call to RSJ this morning after realizing our AC stopped working. They were so…read morereassuring over the phone and super professional. Not only were they able to come out the same day but they were an hour and a half earlier than they anticipated. The unit was fixed within the hour and we have AC again. Will definitely use their services again and recommend them to anyone! Thank you Dakota!!

I can't say enough about Brian and his team. After having a pretty horrible experience with an…read moreinstall done by another HVAC company, Brian and his team were our saving grace and able to figure out the problems and fix them all. Brian was always a text/call away and he always answered. He was the first HVAC guy in the area that I truly felt like he knew what he was talking about and while he could geek out on all the engineering and specs of HVAC he helped you understand the best route and most cost effective way to get the performance we wanted out of the two systems in our house. I truly wish Brian was an option back when we had started building our house... without a doubt our system would have been installed correctly from the beginning. I have never met anyone who enjoys spending money fixing problems created by another... and that is why Brian and his team will be the only HVAC company I call in the future for all my HVAC service needs. I can't recommend them enough.

From the owner: Installation/Replacement We will provide a thorough exam…read morebefore deciding to replace your unit. If needed, our skilled technicians have been trained to install the highest-rated Coleman equipment. Repair/Maintenance Not only will we keep everything running at full capacity but we will offer insight on what you can do to keep your unit maintained between visits.

They were very helpful when I called for help. I was looking for some help with a fireplace…read moreservice. They are a wholesaler, so they don't do that. But the employee spent a long time on the phone with me making recommendations and giving me some possible solutions. Excellent customer service culture.

From the owner: Wholesale Gas and Wood Fireplaces/Stovesread more

Full A/C and Furnace replacement. These guys were highly recommended to me by a trusted SME. They…read morewere exceptional to work with. Cole, Jesse, and Jonathan were all friendly amd respectful. Handled challenges of my old home like the pros they are. Did not cut corners and offered a great value. I would highly recommend to anyone in the Idaho Falls area

Good find on the APEX uncle!! He was fantastic!!…read more I'm so impressed that the first thing he did was clean the thing up and then told me how often I should clean it and that I can have it serviced and cleaned but this is all I had to do to clean it myself.

I got a quote for a mini split heat/ac unit. Their bid was accepted. They came and installed it on…read morethe day promised for the exact price quoted. They did exactly what I wanted and the systems are working great.

Great craftsmen, good to work with did a great job. Would employ them again if I needed. Only…read moreproblem is the performance of the product they rep.. Have had experience with two different installations of the Fujitso minisplit HVAC systems (mine and one in Island Park) in both cases the results were the same: the air coming out of the wall units was just not very cold! The floorboard unit works great but the unit that mounts on the wall is just not very good!

This family owned company believes in doing the job right the first time. Ruben is very thorough…read morewhen evaluating the cause of the malfunction and finding the genuine manfacturer parts for the job. I wouldn't call anyone else. I trust them!

The absolute worst customer service we have ever received. The service tech, Ruben, was very…read moreknowledgeable, skilled and helpful. But, after leaving our business to allow the unit to thaw, we received no communication. A couple days later, they called demanding payment even though we had no knowledge of the issue being resolved or the job complete. The office gal put their lack of communication on us with hostile attitude, berating us with harsh language. When Ruben returned, he even stated that he hadn't finished the job yet. We wouldn't wish this type of service on our worst enemies. Ruben is great, but with an office staff that terrible, we have to urge all to stay away from this business.

The hey gave me a great quote for installing new Air Conditioning. They came within a couple days…read moreand installed all in 1 day. It has worked all summer.

First they never told me that it would cost me $260 for just having a tech look at my garage…read morepropane heater. Then, they quoted me almost $900 to replace the control board. This is a 25 year old unit. A new one is only about $1000. I was not pleased. Btw, the tech said, Let try the board first...which to me means he really did not know what was wrong and of course there could be more money involved if the board is ok.