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HomeAdvisor Screened & Approved

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Learn about our screening process

18 Years In Business

Company Details

  • Verified Licenses
  • Veteran Owned

Contact

6005 Golden Eagle Way
Clayton, CA 94517

Hours

  • Mon: 9:00 AM - 7:00 PM
  • Tue: 9:00 AM - 7:00 PM
  • Wed: 9:00 AM - 7:00 PM
  • Thu: 9:00 AM - 7:00 PM
  • Fri: 9:00 AM - 7:00 PM
  • Sat: 9:00 AM - 7:00 PM
  • Sun: 9:00 AM - 7:00 PM
View All Details & Credentials

Achievements

Service Details

  • Residential Work
  • Small Jobs Welcome

Areas of Expertise

  • HVAC
  • Duct work
  • Custom installs
  • Heat and cooling Calculations
  • Trouble shooting is my specialty
View All Offerings and Cities Served
Deals

Cost Information

  • Free Estimates
  • Warranty Offered
  • Trip Charge May Apply
  • Credit Cards Accepted

Ratings

4.6
182 Verified Reviews
  • 5
    152
  • 4
    17
  • 3
    4
  • 2
    3
  • 1
    6

Highly rated for

  • Overall Rating
  • Customer Service
  • Quality
Showing 161-170 of 182 results
5.0 Evelyn M. El Cerrito, CA
4/30/2017

The furnace was replaced in one day. It turned out to be a no stress project. Thanks Sayed!

4.5 Caldwell P. Richmond, CA
4/22/2017

He was on time and knew what he was doing and that's all that's important to me

5.0 Joan S. Pleasant Hill, CA
4/6/2017

VERY THOROUGH AND PROFESSIONAL. ARRIVED ON TIME. SHOWED ME THE PROBLEM AND INSTALLED A NEW THERMOSTAT. HE ALSO EXPLAINED WHY I NEEDED A NEW THERMOSTAT.

5.0 Helen L. Pleasant Hill, CA
4/6/2017

I was very satisfied with the work done at the house. They went over and above for me. The work was completed shortly after I hired them. It took them two days and the grounds were clean and the entire mess and debris were gone. Skunks had destroyed all of the duct work under the house leaving destruction and horrible odors. We are back to normal. Many thanks to them and Home Advisor.

5.0 Robyn lee D. Oakland, CA
3/29/2017

Prompt & responsive service; very personable company owner; excellent & knowledgeable workmen

5.0 John W. Richmond, CA
2/10/2017

Sayed Opeyany, the owner discussed all the options to replace our failing central heater which was over 20 years old. We decided on complete replacement with 95% efficiency system and new ductwork. All work was done in a timely and professional manner, despite storms and floods. Workers were personable and competent, careful with our possessions. Attention to detail was outstanding.

5.0 Gwendolyn E. El Sobrante, CA
2/7/2017

The owner, Sayed Opeyany, showed up on Christmas Eve morning. He tested & ruled out everything on my central heat. Found out it was my thermostat & replaced on the spot. Didn't leave until everything was working properly. Very patient & professional. I thought emergency appointment charge on Christmas Eve was very reasonable. This company is permanently entered into my phone book. I would recommend Sayed Opeyany to anyone needing work on their heating or cooling system.

4.0 Christine K. Elk Grove, CA
2/7/2017

I wish I would have known you had to pay extra for having your ducks cleaned. I would have had it done on the same . I had to wait for the ducts to be cleaned before I could use the heater. I did not want to inhale the dust from the ducks.

Photos

411 Heating & AC, LLC
New furnace install
HVAC
Certificate
HVAC
New install HVAC & ducts
New custom install
New HVAC

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Seal of Approval

What is the screening process that Service Professionals go through in order to become members of the HomeAdvisor network?

  1. Verify Trade License
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  2. Verify Insurance
    As a part of our screening process, we encourage professionals to carry general liability insurance. We require coverage for hundreds of services.
  3. Verification of State Business Filings
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  5. Sex Offender Search
    We confirm that the owner/principal is not listed on the official state Sex Offender web site in the state in which the owner/principal of the company is located.
  6. Bankruptcy Search
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  7. Legal Search for Civil Judgments
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  8. Liens Search
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  9. Identity Verification (SSN)
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  10. Identity Verification (Reverse Phone Lookup)
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