HVAC reviews in Roseville, California

Juliano was professional and personable and completed th job in a timely manner. Very happy with his job performance.

This place has great service! They are very professional and respectful. All concerns were explained in detail and emailed. I am definitely going to be a continued client based on this positive experience. Thank you for your service.

I needed help installing my Ecobee smart thermostat. I had my original thermostat off, but then ran into problems installing the smart thermostat. Romano Heating & cooling were able to come over within a few hours and install it for me, the complicated process ended up requiring going into the attic, but the job was finished quickly. I will definitely call them in the future!

I’ve used Romano HVAC service in the past, I had an emergency with my heater and called them. Juliano called immediately and stopped by my house within an hour, he was able to take care of the problem and he also replaced the Thermostat. Juliano put a new filter and bought a couple more to replace every few months and put me on the schedule. I will tell you this Juliano goes above and beyond if you’re lucky enough to get him.

Great job and service we are very happy.

Awesome company! Everyone we worked with from the beginning paperwork to the installers to scheduling our yearly check up have been outstanding!

I love Bob and Elaine! They make you feel like part of the family. Excellent service! You can always count on them!

Diamond Heating and Air is the definition of what this industry should represent... Honest, dependable, professional, and friendly. I would recommend to their work to anybody!

Unbelievable and prompt service. The gentleman was so nice and knowledgeable. Everything is good as new now. I've dealt with other companies and this one is by far the best.

You are a life saver. Bob showed up and was able to get us up and running again. I am forever grateful for this upstanding gentleman.

Based on my interactions with Bob, Bob the owner is a greedy guy who will overcharge unfortunate customers every chance he gets charging thousands of dollars to install cheap parts, a $20 capacitor, $20 fuses or $100 fan motor.

My fiances grandparents recommended them to us and it was such an easy experience. Eric fixed our ac in less than an hour. Diamond is definitely a great choice.

On a 100+ degree Saturday, a real person answered the phone and sent a technician to look at my non-cooling air conditioner. The problem was diagnosed in short order. I would definitely call on Diamond Heating and Air in the future.

They advertise a professional and caring company. I disagree. Bob rudely yelled hurtful words at me, humiliating me in front of his employees and my neighbors. He has no regard for the people living around his job site. All of this was over a parking issue in which I politely asked if he could move one of his vans so that I could comfortably back out of my driveway. He made me feel like I was a total idiot for not being able to back my car out. My lack of driving skills do not deserve or condone his inappropriate behavior. Totally unacceptable by a professional.

We had a new system installed a year ago and it’s been great. More efficient, quiet and effective. 3 zones and a quiet fan whole fan which is awesome as well. I have a 100% confidence in recommending them to all my friends.

If I could give ZERO stars I would. Our A/C went out while we were out of town. We went through our Home Warranty, who sent this company.

Initially, he seemed friendly until we received denial of further payment from the warranty company. When Bob came out, he checked the condenser unit outside and replaced the capacitor (which was covered under warranty). He only looked at our downstairs thermostat that we installed and was working for about 3 weeks (Nest thermostat). We installed 2 Nest Thermostats and our A/C was working up until Sunday, July 5th. He completely lied to the warranty company stating the A/C never worked after our Nest thermostat installation. Essentially voiding our home warranty for our AC system.

He proceeded to blame the problem on our wiring and that we were the ones who broke the A/C while installing incompatible thermostats.

We are obviously not HVAC experts, but still found his findings to be questionable since he NEVER went into the attic. He also proceeded to tell us, without looking, that we had a Beulter system, with a ztech board which we don't.

Bob then had the nerve to send us the proposal (photo below) of over $2,700.00 to resolve everything, without a complete diagnosis.

Needless to say, I would stay away from this company unless you want to be sold unnecessary equipment and overpay. Our AC is finally working as of today (7/9) after a simple and low cost replacement of a $20 transformer and $2 furnace fuse.

Fast, friendly, professional service from the initial call with Elaine to waving goodbye to Bob after the service.
Bob also gave some great maintenance tips and educated me on our system.
A heartfelt thank you to this exceptional team.
Diamond HA is what 5 stars is supposed to mean.

I've used Diamond Heating and Air for years, always with excellent service and very reasonable pricing. I recently replaced my complete 20+ year old HVAC system with an Energy efficient system and the cost savings YTY are amazing. July 2018 PG&E Bill $656 compared to July 2019 PG&E $462 and PG&E rates increased from a year ago. And my house is consistently the right temp.

Thank You Bob and Elaine!

My ac unit started blowing hot air into the house. Going thru our home warrenty company they referred me to a whole entire different place but they couldnt make it out for at least a week its 100 degrees outside with 2 animals 1 being senior and 2 small children I reached out further and was given info for this company. I spoke to the sweetest woman 1 who was part owner from my understanding the other technician who actually came the other owner Bob I believe well if it wasnt for them we would have been roasting literally my home was already at 83 degrees inside my apt was for in a few days but because of my situation they came out almost immediately. Professional and so kind. Fast working got our place cool and ac unit working it was the compressor that was dead the entire fan inside wasnt moving. It's an older unit way older than I even had though. I am so greatful for their hospitality and taking care of us. I highly reccomend them! And if we have further issues I will tell our home warrenty I want diamond to resend them again. Times are tough these days so nothing is taken for granted anymore and their persistence to help us we are greatful for. Dont hesitate to contact this company. They are very nice and get the job done and things working right. Thanks again!

My air conditioner quit cooling on a 100+ degree day. I called Diamond and the owner arrived within four hours, diagnosed and fixed the issue within an hr. and replaced my air filter which is a good 14 feet high. With in no time my house was cooling better than it had all season. I have used Diamond in the past and every service call has been done quickly, professionally and economically. Diamond is the best. They are my HVAC pros.

Our A/C wasn’t putting out enough cold air to keep up with the hot weather. I called up diamond heating and air hoping they could squeeze us in before we melted. Not only did we get within the day but our A/C is working better than ever. It’s over a 100 degrees today and our home has been nice and cool. We are so appreciative of their fantastic and prompt service.