Needed immediate service for a failing -80 ultra-freezer in our lab. Greg came out and diagnosed, fixed the inner doors, and Rich came out and finished the job! Another company said they would need a 120-day lead time for parts. Thank you RJH!

After being told by two other companies that replacement was the only option, RJH Air Conditioning and Refrigeration Service diagnosed and fixed our HVAC issue within two days. Their work saved significant cost by avoiding an unnecessary replacement. They also spotted and addressed additional issues with no pressure and great communication throughout. James was knowledgeable, professional, and efficient. Highly recommend.

They should get 5 stars just because someone answered the phone instead of some AI voice menu. I called in the morning last week and they were able to schedule me the same day. The tech knew exactly what the problem was. He came back the same day with the part and finished the repair. After that he stayed for about 20 minutes and showing me what I can do to avoid the problem happening again. I am completely satisfied with RJH Service and I will be using them from now on.

RJH Service was instrumental in getting our new facility ready. They handled both our walk-in freezer and cooler repairs with multiple stages of deep cleaning and set up our hotline equipment with precision and care. Communication from the office staff was consistently clear and proactive, and their technician was fantastic — extremely knowledgeable, professional, and respectful on-site. Their follow-through exceeded expectations at every step. Thanks to their work, we passed inspection smoothly and accelerated our facility readiness. We’ll absolutely continue to use RJH Service for ongoing maintenance and service needs. Highly recommend them to anyone looking for reliable, high-quality refrigeration and kitchen equipment support.

Never in my 20+ years have I had two of the most professional mechanics work on our equipment. They explained to me what the issue was, how to maintain our equipment so that we wouldn’t have these issues again. I am very pleased with the job that these two guys did in our restaurant today. A job well done!!!!

Excellent service as always! John gives great service and advice on preventative maintenance every time he comes!

I have just begun working with RJH Air Conditioning and Refrigeration these past two or three weeks. So far, I have found their customer service to be some of the best I have seen in years. I want to specifically recognize Marsha for her care, communication, and transparency in dealing with our organization. It is much appreciated

Used RJH to repair our ice maker machine at our shop. we had another refrigeration company come our and work on the machine, they came out five different times, each time they said it need a different part, never fixed unit. James from RJH came out and worked on the unit, ordered one part, cleaned they unit and ice cycles, tested unit and had it working perfectly after installing only one part. James knows what he is doing and would recommend this company for anyone needing refrigerant work done.

The entire team at RJH Air Conditioning and Refrigeration Scientific Division always does a superb job of repairing and maintaining the lab equipment at our American Red Cross facility located in Rockville, MD. Thank you and keep up the great work!!

My first experience and impression of RJH for a commercial repair was that they were very responsive, prompt, and professional. Craig, the tech sent out to our DC restaurant, was great in how he approached the job, how knowledgeable he was, and the extra time he took to explain the issues to someone like me who encountered him as he was already finished and about to leave the location. I was so impressed with Craig, that I have requested that he be our primary service person and we are already in talks with RJH to handle all of our preventative maintenance.

I had the absolute pleasure of speaking to Phyllis yesterday. We had an equipment emergency and she expeditiously arranged for rich to come the very next morning! He was quick to assess our situation and diagnose our problems which we now have a plan to correct. He was super detail oriented and figured out our issues in no time! Every thing Phyllis promised was delivered! Rich was a quick diagnostician and we will soon be signing a maintenance contract for our establishment bc I trust them fully and know that I am in kind, caring and capable hands! Thank you everyone:)

Rich from RJH has been servicing the refrigeration systems in our government facility for some time now, and his work speaks for itself. He’s reliable, knowledgeable, and handles every job with precision and professionalism. Beyond the technical side, Rich is very well-mannered and consistently pleasant to work with. He communicates clearly, respects the space and staff, and always shows up with a good attitude. It’s not easy finding contractors who check all the boxes, but Rich does. Highly recommend.

Over the years, our secure private site in Washington has required consistent service for everything from the building's chiller system down to the reach-in coolers. Following several system shutdowns due to water line issues during construction, we found RJH. After their technicians resolved the immediate problems, they recommended a preventative maintenance program and filtration systems, which has since saved us significant time and money. Now, our visitors consistently comment on the exceptional clarity of our ice. The savings we've realized through their service have even allowed us to replace equipment cost-effectively, all thanks to RJH. Their technicians take the time to thoroughly explain our options before the office provides a quote for the work. While no company is perfect, we haven't found anyone else who comes close to their level of service. Despite being highly sought after for government projects, RJH is always quick to respond to our needs. We're very grateful for their support.

These guys (particularly Steve) are awesome. We were told by multiple vendors that we had no option except to replace a multi-unit commercial AC system. Steve stopped by within 20 minutes of my call and was able to get the units back up and running. He ended up saving us tens of thousands by being honest and untold dollars in productivity that we would have lost had we had to send everyone home.

When it comes to the DC Metro area, nobody does it better. I am in the food service industry and I take RJH wherever my career takes me. Over the last 5 years Heather in the office, Rich and Terry in the field have proven themselves over and over again. They truly care about My business. Five Stars!