This pro has maintained an average of 4.5+ stars throughout their time with Angi.
About us
Thank you for choosing 411 Heating & AC, LLC, Contra Costa Countys premiere HVAC service professional. For nearly a decade, we've specialized in all your heating and air conditioning needs. We proudly serve Concord and the surrounding areas. We look forward to earning your business.
After being out of town for 6 days, I came home and my wall heater (all the heat I have) would not come on. The pilot light would not stay lit. I contacted 411 Heating and AC through HomeAdvisor, and they were able to come out the next morning. They let me know a half hour before they were to arrive. The job was done quickly and well, and for half the price of the other estimate I got.
Rating Category
Rating out of 5
$395
Diane J.
01/2025
5.0
The technician was prompt and knowledgeable. He quickly diagnosed the problem and was able to fix it immediately. In addition, he explained to me what to look for and how to fix that type of problem should it occur in the future. I really appreciate the time he took to educate me. I would highly recommend this company.
Rating Category
Rating out of 5
Lucille F.
12/2024
5.0
411 Heating were very responsive and called almost immediatly I requested contractors. Sayed was out here within an hour and we arranged repalcement for the following day.
Everybody (Moses and Bey) was extremely personable and very helpful. I enjoyed having them in my house and for getting the work done so that I could enjoy heat again with a relatively short amount of down time in the cold weather.
I highly recommend them and if needed for anything else in the future, would call upon them for their fine work.
Rating Category
Rating out of 5
Gerard F.
12/2024
5.0
Exceptional company, exceptional work done for us. We had an emergency need with a failing furnace. 411 was able to come out on Sunday, the same day. Our HVAC system was 35 years old and I knew it needed to be replaced, and they were able to do so within two days. In addition, they were able to identify why our upstairs remained hot in the summer despite air conditioning. They were able to install a withdrawal vent that will greatly increase the removal of hot air in the summer, and therefore the effectiveness of our air conditioning. All this was done at a very competitive price. I feel very lucky that they answered our call that day. I can?t recommend the more highly.
Rating Category
Rating out of 5
JAMES T.
12/2024
5.0
They did great!
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
Steve M.
11/2024
5.0
They were excellent. They came out on Thanksgiving Day to fix our furnace. They showed up exactly when the said, worked quickly and took care of the problem. These guys REALLY know what they are doing and I would recommend them to everyone. EXCELLENT customer service and first rate reliability. Can't ask for anything better
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
Diane J.
02/2024
5.0
They were on time, diagnosed the problem as a faulty thermostat. They had a new thermostat to sell and installed it right away.
Rating Category
Rating out of 5
quality
5.0
value
4.0
responsiveness
4.5
Yes, I recommend this pro
$495
RENATA M.
02/2024
5.0
Sayed Opeyany, the owner of 411 Heating & AC, LLC, is amazing! He came over to give me an estimate for the removal and replacement of my house's furnace that another vendor told me needed to be replaced. After a quick look Sayed told me my unit wasn't old enough and asked me if he could run some tests. He replaced the transmitter and fixed the problem. By being honest and going the extra mile Sayed saved me thousands of dollars! I 100% recommend his services
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
$595
Anthony H.
12/2023
5.0
He came in according to schedule, and completed what was asked of him. Enough said.
Rating Category
Rating out of 5
quality
5.0
value
4.0
responsiveness
5.0
Yes, I recommend this pro
Lonnie R.
11/2023
5.0
Great guy for installing my Ecobee T-stats. He also does Nest as well. I recommend this company.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
Verne D.
09/2023
4.0
They came out within 2 hours of my phone call and fixed quickly the A/C Exterior motor, which had been shutting down. However, two weeks later, the unit began shutting down again. Because I was more familiar with the unit, I was able to act quickly so as not to have the motor burn out. I can not say that the motor beginning to shut down again was due to their negligence or oversight. However, I will need to call either 411 Heating or someone else in order to have someone come out a second time to repair the unit.
Rating Category
Rating out of 5
quality
4.0
value
4.0
responsiveness
5.0
Yes, I recommend this pro
Mary S.
09/2023
5.0
Very knowledgeable. Real experts. Kind Patient and very Helpful! I would Highly recommend these Professionals to. Anybody having HVAC issues! True gentlemen! Thank You! Mary Sutherland Ables.
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
A.J. Y.
08/2023
5.0
Said was prompt and easy to work with.
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
$10,000
Raymond F.
08/2023
5.0
Our airconditioner broke during a heat wave. Sayyed came to fix our unit on his day off. He was both polite and professional. I cannot recommend 411 Heating & AC enough!
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
Marc S.
08/2023
5.0
Prompt and professional.
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
$319
Brenda J C.
07/2023
5.0
Would definitely call him again. Explained and showed me what he was doing, and suggested maintenance procedures.
Rating Category
Rating out of 5
quality
4.5
value
4.5
responsiveness
5.0
Yes, I recommend this pro
Stuart K.
06/2023
5.0
Great response time. Very professional. Highly recommend this company
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
4.5
Yes, I recommend this pro
$23,900
AnneMarie N.
05/2023
5.0
Same day service. Technician made adjustments to his schedule to accommodate mine. Great communication and explained issues and things to keep in mind to save money down the road.
Rating Category
Rating out of 5
quality
5.0
value
3.5
responsiveness
5.0
Yes, I recommend this pro
$395
Steve G.
04/2023
5.0
411 Heating and AC visited me after another (manufacturer-certified) shop came in with an inflated furnace repair quote and a high pressure sales-tactic designed to get me to purchase a new furnace system. It took all of 5-minutes for 411 to identify that the furnace replacement quote that I had called them out for was overkill, and that my furnace could be repaired for a fraction of the repair cost quoted by the first company. They quickly acquired the parts to effect the repairs and had us back up and running with heat in a day’s time. If you’re looking for a reputable HVAC repair outfit, you will certainly not be disappointed by 411 Heating and AC.
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
Michael B.
03/2023
5.0
Great caring people. Efficient Expertise Reasonable Fair. Canâ t do better than 411
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
Adam B.
01/2023
3.5
He was very fast. Had roughly a 2 week wait for other places. Diagnosed that the wire for the thermostat had been broken somewhere. Installed the new thermostat all in less than an hour. Ended up being 2x the cost (from 300 initial estimate on Angi - 600), also has a $90 just to diagnose, would have preferred to shop around after hearing that but didn't want to freeze. Installed and works just fine but the wire work seems he had to splice two wires together. so doesn't look very good.
Rating Category
Rating out of 5
quality
3.5
value
2.5
responsiveness
4.0
Yes, I recommend this pro
$600
Susan S.
01/2023
5.0
It was done quickly and efficiently.
Rating Category
Rating out of 5
quality
5.0
value
4.5
responsiveness
5.0
Yes, I recommend this pro
William M.
12/2022
5.0
Sayed and his two courteous associates installed a new furnace and air conditioner. They were efficient and neat. They even installed a new Nest thermostat and showed me how to operate it I highly recommend them
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
TOM G.
11/2022
5.0
Sayed was professional and very supportive He solved the issues with the fan and blower housing and everyone is happy once again
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
Marissa S.
09/2022
5.0
Fast, efficient, reasonableâ ¦.Iâ ll never call anyone else for HVAC issues again. Thanks
All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our State Contractor License Requirements page.
*Contact business to see additional licenses.
Service Categories
heating & cooling contractor,
handyman service
FAQ
Monday: 9:00 AM - 8:00 PM
Tuesday: 9:00 AM - 8:00 PM
Wednesday: 9:00 AM - 8:00 PM
Thursday: 9:00 AM - 8:00 PM
Friday: 9:00 AM - 8:00 PM
Saturday: 9:00 AM - 8:00 PM
Sunday: 9:00 AM - 8:00 PM
411 Heating & AC, LLC accepts the following forms of payment: CreditCard
No, 411 Heating & AC, LLC does not offer free project estimates.
No, 411 Heating & AC, LLC does not offer eco-friendly accreditations.
No, 411 Heating & AC, LLC does not offer a senior discount.
No, 411 Heating & AC, LLC does not offer emergency services.
No, 411 Heating & AC, LLC does not offer warranties.