Sean has very poor work ethics, very poor customer service said he repaired our concentrator and did not didnt even open it up to see what the real problem was, charge me$200 thats my opinion and Im sticking to it. Buyer be ware honesty NOT

Sean is very knowledgeable and has expertly fixed 2 of my machines. His accessory prices are inflated but I get he needs to make some money too. I will continue to use him. My one wish is he would write estimate down and both have a copy. Last night when I called about my machine he told me $210.00 to pick it up. When I arrived it changed to $310.00. I didnt say anything because how can I prove it? Hes great at what he does for sure.

Sean repaired and serviced my oxygen concentrator within 24 hours. The repair cost was very reasonable. A new machine would have cost us dearly. The machine runs like new. Marvelous to find this service available in the metro Denver area. .

Sean is the best! He listen to what you need and then gives the best service he has to offer, we need more people like him. Thank you and I will definitely be doing all of business with him.

SEAN GUILLEN of Rocky Mountain Oxygen is very UNRELIABLE. Never returned my phone calls had to work with him via email. I was coming in from Fl and needed an concentrator for 2 weeks. Starting Aug.28th. Thought I was all set until I went to pick it up. I had informed him that my son got out of work at 3pm so he would be able to pick up anytime after that and to please let me know what time he should be there. Seans rerply was, and I quote sounds good. Thank you.We arrived at his house for pickup at 3:30. No one was home. He answered via his ring that he left at 3p,m to come back tomorrow..WHAT A WAY TO DO BUSINESS.HE WONT GET MINE AGAIN

Sean is great and very professional not to mention kind. I bought a used home oxygen concentrator from him and will be back to buy a portable concentrator from him. He is the best Thanks Sean

I was referred to Rocky Mountain Oxygen Repair by a friend of mine. I was impressed to see the organization and detail displayed by Sean, its very evident that he takes pride in his business. I now use Sean exclusively due to his knowledge and expertise. I know that my equipment will be repaired on time, and that it will be done right.

Saun is the best, he went out of his way to make sure I had what I needed. Thank you so much.

Rocky Mountain Oxygen Repair staff are very knowledgeable and super friendly. I will only use one one company from now on, ‘Rocky Mountain Oxygen Repair’Thanks Again Mr. Guillen⭐️⭐️⭐️⭐️⭐️

Sean is super cool and does great work fast! thank you again!!

Knowledgeable and kind. Very professional.

Nightmare experience