Best Heating & Air Conditioning / HVAC In Westminster

“Rob is professional and do a great job assessing our home. Highly recommended. Robert Huddler“

“12/17/25
Have 2 oil fired trailer furnaces in my bfs apt.. The techs arrived promptly, were very courteous, proficient and represented their company very well. Reasonable rates too. Replaced electrodes in furnace and nozzle and all is working well....Highly recommend First Class Mechanicsl Llc

12/31/25
The tech had to come back out to replace ignition module on furnace downstairs. Prompt, courteous.knowledgeable and got repair done quickly. Decent price as usual. Can't recommend this company enough!“

“I called JEM when my a.c. went out during this heat wave. Jeff sent Herman over and repaired it for us. I have to say anytime I have had their mechanics at my house they are nice, informative and very efficient. I would highly recommend Jeff and his crew!!! score 5 stars*****“

“Excellent work from Keith and his crew! Very happy with the work they did on our new house! Would recommend over and over again! We appreciate all the hard work done today !!“

“Very professional and job well done. Recently moved in and our master is an addition over the garage. All summer it was hot so David came to assess the situation and suggested a solution - a mini split. It looks great, is so quiet, perfectly installed, and now I’ve even tried the heat function since it is getting chilly out and it is fantastic. Communication was always super quick and we were well taken care of. He even set up the warranty for us - which I probably would have neglected to do. Highly recommend!Service: Installation“

“Our well pump went up on Friday night of Labor Day weekend leaving us with no water. I called First Class Mechanical that night and they had 2 techs at our home bright and early Saturday morning. They quickly diagnosed the problem and replaced our pump for a fair price. Water was flowing by 9:30 the next morning. The techs were very courteous and we are very happy with the service we received.“

“This company has really been amazing to me over the years. Their service is great and the prices are reasonable.Services: HVAC system maintenance“

“Edward and Jordon were both extremely courteous and professional they took extra steps to keep the house clean as they worked on replacing our furnace and an outside AC unit gave us a thorough walk-through on the new system and answer any questions that we had they did an excellent job!“

“Good service. I need propane they are there delivering it with a few days. Drivers are always polite and all the ladies I talk with by phone are very nice!“