Get matched with top furnace / forced air heating system pros in Sacramento, CA

"They did a great job, and they were able to fix the problem on our air conditioning."

"Very quick response time. Flexible scheduling. Professional, courteous, and affordable. I appreciate that they actually repaired my A/C and didn't try to sell me a new unit. I would use them again."

"They installed central heating and air in our home in 2025. They were efficient, did a excellent clean up, and friendly. They checked in a week after to make sure we were satisfied with the system and if we had any questions. We are extremely satisfied with the new system. The controls are easy to work and the system is very quiet and efficient."

"Garrett and team were excellent, they provided top professional service at a reasonable price. I am very happy with my new furnace and the whole installation process. Highly recommend!"

"They had a good program for heating and A/C like for $100 they come out and check in the fall to make sure the heating is running right and again in the spring to make sure the A/C is working right. They did their job. It was cheaper than anyone else and I got 2 services. The only thing they could do better is give me free heating and air conditioning."

"Same day service, appreciated! Fixed our AC quickly and affordably. Would definitely call again if there are any problems. Thank you!"

"The technicians that came to install our HVAC system were super friendly and accommodating to my many requests about locations of the furnace, vent pipes, the condenser wiring, piping, and the condenser itself. When I asked for a 90 degree boot feeding two registers so the piping could stay high, a technician made a run to a store and found them. I want to give a shout out to Danny Aguilar who installed the furnace with Edgar and Victor. Grant Duran with Jose and Richard did an amazing job installing the vent pipes. Finally Adolph Garcia with Gabriel and later several other technicians I previously mentioned all worked to install the AC system (condenser and its plumbing + electrical). They worked late into the day to complete the job. I was very demanding in where I wanted things installed and requested changes on a regular basis but in all cases I was accommodated."

"Air conditioning in one zone stopped working over very hot weekend.  Called three companies to get a quote on possibly replacing both zones before I spent money on repairing a 17+ year old unit.
Diamond was the first company with availability.  Before they came over to give a quote, Bob called to ask me a few questions about the nature of the problem.  He speculated over the phone of what the problem might be and what the cost of fixing it would be.
He arrived for the appointment at the appointed time and proceeded immediately to fix the unit while talking to me about an estimate to replace both zones (2 systems).  He spent extra time hunting down an electrical connection issue in the unit and when done, checked out the flow readings of the system.
$258 dollars fixed the problem.  Since I had scheduled him for a quote, he offered to remove the new part that he had just installed or I could leave it in and if I decided to buy a new system, they would credit the repair of this unit back against it.  I elected to have him leave the fix in place.
Bob quoted me an exceptionally good price per unit for a quality Lennox system.  In fact a competitor who came the following day said that he wanted to see a copy of a written quote because Diamond's price was too good.
Although I've decided for the time being to not replace both systems, I would select Diamond Heating and Air in a second!
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"Our experience with Ray O. Cook went very well!! Our HVAC system was the original when the house was built over 40 years ago. My husband's excellent Do it Yourself skills allowed him to maintain it and keep it running all these years. We received estimates from 5 different companies. Although the other salesman/estimators were good, Paul was the best. He explained all our options more thoroughly than the others and his recommendations for installing the HVAC system for our needs and house size made the most sense. The price was very reasonable and fair. The installers, Willy and Rick T were awesome. They both worked professionally and took the time to answer any questions either one of us had with the install process. They also did an excellent cleanup job. Erick, the install manager was very knowledgeable and helpful. The insulation was put in by Sierra Wes, a company Ray O Cook contracts with and they did a great job also. Lastly, the Ray O. Cook logo of a flaming O is super cool!!!"

"I appreciate that they texted me within the hour and gave me a timeframe of 2 hours for the appt (so I didn't have to wait all day).  They sent AJ to look at my air conditioner, he tested it and within 20 minutes he had it fixed!  He reset it, replaced the batteries and fixed the connections.  He let me know what he was doing each step of the way and had recommendations. I was so relieved that it only cost a service visit- I would definitely use them again and refer them to friends
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