In mybook® Home Collection (edit)

Added to your home collection.
Removed from mybook!

We took this business out of your home collection.

100% Money Back Guarantee = 100% Peace of Mind

100% Money Back Guarantee Means 100% Peace of Mind

Call Today
General Info
Thank you for visiting our fan page. We provide Heating & Air Conditioning services to Solano & Contra Costa Counties. We appreciate all our customers and know we could not be a success without you. Thank you for your business.
Business History
Since A-1 Guaranteed began as a business, we have grown to be one of the most trusted HVAC service businesses in the areas of Solano, Napa, & Contra Costa Counties. We have gained experience & knowledge from putting our name on thousands of installations & repairs. Our customers gain from our working knowledge of the latest technology in heating and air conditioning. Our reason for existing is the basis of our company philosophy: We work to provide service to our customers. Looking after the best interests of our customers in a professional and fair manner is what sets us apart from other businesses in the industry. We pledge to always be courteous, fair, thorough, and professional in every service we provide. It is this pledge that has enabled us to grow as a family and expand as a company over the years. We are licensed by the state of California (License No. 719381) & hold that license as a true privilege and a testament to our reputation as a premier
Regular Hours
Mon - Sat:
Extra Phones

Phone: (707) 645-0734

Fax: (707) 649-2701

TollFree: (888) 421-2473

  • Electrical Contractor Services
  • Heating & Air Conditioning Services
Trane, Trane/General Electric, electric
Payment method
all major credit cards, financing available, amex, discover, mastercard, visa
Serving Solano, Napa and Contra Costa Counties
West Vallejo
Free Estimates Payment Options All Employees Fully Background Checked for Your Safety Commercial and Residential Installation

BBB Honor Roll 17 Years NATE Certified Bay Area Certified Green Business Diamond Certified BPI Certified Goldstar Contractor

NATE Certified

EGIA Approved Contractor

Diamond Certified

Chambers of Commerce: State of California, City of Vallejo, and City of American Canyon League of California Homeowners Electric & Gas Industries Association Air Conditioning Contractors of America Napa-Solano Builders Exchange Better Business Bureau Safety Services Company Trane Comfort Specialist
Social Links
Air Conditioning Equipment & Systems, Air Conditioning Contractors & Systems, Air Conditioning Service & Repair, Fireplace Equipment, Fireplaces, Furnaces-Heating, Heating Contractors & Specialties, Heating Equipment & Systems, Heating Equipment & Systems-Repairing, Solar Energy Equipment & Systems-Dealers, Solar Energy Equipment & Systems-Service & Repair
Other Information

Wheelchair Accessible: Yes



Hi there!
Rate this business!
First-classBetter than mostAbout what I expectedNot the worst...Disappointing
Click to Rate
Share Review

Like this review? Share it on your social network to get the word out!

Jack C.



Friendly, fast and efficient service with a complete explanation of the work performed. Great experience.

Brandon F.



A-1 made everything so easy for us it's no wonder they're doing so well! They do great work and are very helpful

Randy F.



Very professional company. It's good to know there are still companies who care about the customer and their professionalism.

Maria M.



I'm a busy person, so it was very convenient that A-1 Guaranteed Heating and Air worked around my schedule. They were flexible and I really appreciate that, that's why I won't use anyone else.

Nicole B.



Larry from A-1 Guarenteed Heating & Air was very generous and professional. He went out of his way to make sure the job was done right and we really appreciate and value that. Great work!

Cindi R.



The ladies in the office are really nice and friendly whenever they call or if I should call the office. The guys who came out to our home were also very friendly. All the work that they've done has been great and we will continue to do business with A-1 Guaranteed in the future.

Betty K.



A-1 Guaranteed worked around my busy work schedule and was able to have the work I needed done without me being home. They did an excellent job. Thank you!

Ken L.



I made an appointment and they were timely in completing the job. They were also very friendly and easy to talk to. They did an excellent job.

Sue G.



They showed up when they said they would and I like that I was able to talk to the people who could make a decision. They were exceptional. All the things spot on.

Marc W.



I liked that the installation of the furnace was done quickly, efficiently, and their quality of work was excellent. They did not leave any mess behind.

Bert D.



They are nice people and very competent. I have never had a problem with them and I use them regularly (year after year). I really like their quality of service!

Ruby R.



The technician was on time and setting the appointment was easy. The installation of the new heater was quick and simple. We had no problems whatsoever and I was pleased with the quality of their work.




I like that I can get an appointment fairly quickly and that they are not pushy about anything. I like them so much that I keep calling them. I have used them three times. Their work is very thorough, which is important.



They took the time to explain,...

They took the time to explain, they were very through, and they had great follow-up. It was just a pleasurable experience.



First rate service!

Wonderful service. Family owned and operated, with great support staff. The installers are professional and friendly.

They took great pride in doing the job right. Richard the owner has a motto on his service trucks. "Do the right thing even when no one is looking". Now that's integrity! I highly recommend this company.



This company is a Winner!

As a service provider I know what it takes to please customers. I have been very impressed at the honesty, integrity, and quality of the work A1 provides. Friendly staff that value doing the job right. Richard, the owner has a favorite saying: "Do the right thing even when no one is looking". That inspires confidence, and A1 delivers!