Independently Rated Highest in Quality
N i n t h
Consecutive Year
Originally Earned:
January 2008
We declare that A-1 Guaranteed Heating & Air, Inc. HAS QUALIFIED for and continues to meet the Ongoing Research and Rating Requirements for Diamond Certified® status.
Certificate #1249
(877) 312-3528
(707) 670-3950

An A-1 Guaranteed Heating & Air technician works on a client’s HVAC system.
A-1 Guaranteed Heating & Air, Inc.  is a family-owned and operated HVAC (heating, ventilating and air conditioning) business that serves residential and commercial clients in Solano, Napa, and Contra Costa Counties. The company installs, replaces, repairs and maintains a wide variety of HVAC systems, including furnaces, evaporator coils, compressors, vents and ducts. A-1 Guaranteed has also recently partnered with EnergyUpgradeCA to increase its customers’ overall energy efficiency and achieve even greater savings by upgrading their homes.
 
Owners Richard and Krissy Hiteshew established A-1 Guaranteed Heating & Air more than 20 years ago, and they’ve since expanded to serve thousands of Bay Area customers. The company’s efforts have also translated to community recognition—it’s received 12 awards for “Best HVAC Company in Solano” from the Vallejo Times Herald, the “Spirit of Solano” award and KRON 4’s coveted “Best of the Bay” award for four years.
 
A-1 Guaranteed Heating & Air is a factory-authorized dealer of Bryant HVAC systems. The company also offers a “Guaranteed Universal Savings Agreement” that utilizes more than 35 procedures to tune HVAC systems for maximum efficiency.

Company Philosophy

“We’re honest and upfront with our customers, and we make sure they get exactly what we promise. We’re confident in our work, and we’re able to offer guarantees that assure our systems will perform to our customers’ complete satisfaction. If there’s ever a problem, we’ll do everything we can to make it right, whether that means removing a system or completely refunding an investment. The happiness and comfort of our clients is the most important aspect of our business.”

Serving all of Solano, Contra Costa, Alameda, Napa and Sonoma Counties including Santa Rosa, Richmond, Calistoga and Oakland.

Air Conditioning & Heating
Indoor Air Quality
Commercial & Residential
Sales, Installation & Service
Home Energy Audits
Green Building & Remodeling
Tankless Water Heaters
Insulation & Windows

Carrier and York
Trane
Trane

Comparative Summary

Customer service is so important to A-1 Guaranteed Heating and Air, Inc., says vice president Krissy Hiteshew, that most of its business comes from referrals. The family-run HVAC (heating, ventilating and air conditioning) contractor operates under the golden role of customer service: Treat people as you’d like to be treated. The company believes in doing “whatever we can to make...

Frequently Asked Questions

Q: Will you save me money over the long term?
A: "If you own any HVAC product that’s at least 10 years old, it’s not running as efficiently as it could. A newer, more efficient unit could definitely save you money. For example, if your current unit is operating at lower than 10....
Q: Can you help with allergy control?
A: "A lot of new furnaces and air conditioners have filters that actually clean the air and can help prevent an allergy or asthma flare-up in the home."
Q: Are your estimates free?
A: "Yes."

Industry Info

With HVAC services, poor quality work isn’t just a nuisance—it’s potentially dangerous.
There are many reasons to hire licensed HVAC technicians to install or repair your heating or air conditioning systems. You’ll get better-quality work that lasts longer and, most likely, saves you money on energy bills. However, it’s...
Findings based on statistically reliable research from 226 surveys

Customer Satisfaction

Survey Question: On a scale of 1 to 10 how satisfied were you with the quality you received?
Chart.

Company Credentials

Workers Compensation
Liability Insurance
License Verification
Business Practices
Current Complaint File

Customer Loyalty

Survey Question: If you needed this product or service in the future, would you use this company again?
Chart.
97%
n = 226

Diamond Certified Qualification

Based on 226 customer surveys, we declare
A-1 Guaranteed Heating & Air, Inc.
has passed all rating steps and has earned
The Diamond Certified Award
No. 1249
Continuously qualified since January 2008.
David Pak
Director of Ratings Research
American Ratings Corporation

Verbatim Survey Responses From Only Verified Customers

Bob B. Verified Customer Name
"They are really prompt about coming out."
Research conducted by American Ratings Corporation. Ratings Methodology

Diamond Certified® Video Profile

Company Capabilities Table

A-1 Guaranteed Heating & Air, Inc.
(877) 312-3528
(707) 670-3950
(925) 388-6984
(707) 649-2701 fax
DCID8884212473
DCID7076450734
DCID9256098800

Mon – Fri: 8am – 5pm
Sat: By Appointment

Serving all of Solano, Contra Costa, Alameda, Napa and Sonoma Counties including Santa Rosa, Richmond, Calistoga and Oakland.

Krissy Hiteshew, Vice President
20
26
Bay Area Green Business, Better Business Bureau Accredited Business, Certified Bryant Heating & Cooling Systems Dealer, Energy Upgrade Participating Contractor, NATE Certified
719381
Liability Insurance, Workers' Compensation
American Canyon Chamber of Commerce, Better Business Bureau Accredited Business, California Chamber of Commerce, Electric & Gas Industries Association, Safety Services Company, Vallejo Chamber of Commerce
2009-2014); Best of the Bay, Best HVAC Company, San Francisco Examiner/KRON 4 (2012-2014); Talk of the Town (2012-2014), Vallejo Times-Herald (2004-2007
1996
Air Conditioning & Heating, Indoor Air Quality, Commercial & Residential, Sales, Installation & Service, Home Energy Audits, Green Building & Remodeling, Tankless Water Heaters, Insulation & Windows
Carrier and York, Trane
Commercial, Residential
100% Money-Back Guarantee on HVAC Installations

Photo & Video Gallery

Survey Responses For

A-1 Guaranteed Heating & Air, Inc.

A-1 Guaranteed Heating & Air, Inc.: Average 9.3 out of 10 based on 226 unique customer surveys of customer satisfaction.
Bob B. Verified A-1 Guaranteed Heating & Air, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They are honest."

"They are really prompt about coming out."

Brett C. Verified A-1 Guaranteed Heating & Air, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They were fast and courteous. They did a good job and they were on time."

"They were on time."

Carlos C. Verified A-1 Guaranteed Heating & Air, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They have a lot of knowledge about my system."

"The guy had a lot of knowledge about what he was doing. I thought he did a great job."

Chuck L. Verified A-1 Guaranteed Heating & Air, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"Professional service and good price"

"Their professional service"

Dawn P. Verified A-1 Guaranteed Heating & Air, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They were very eager to help me with what I needed specifically."

"I didn't feel like they were trying to sell me something."

Debra S. Verified A-1 Guaranteed Heating & Air, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"The product works very well and I have had no problems."

"That it works"

Dianne T. Verified A-1 Guaranteed Heating & Air, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They make my life simple and they come out and fix everything and it is done."

"The thing I appreciate the most is that when they replace parts, they bring the original parts back and they show me what the problem was and why it had to be replaced."

Gary M. Verified A-1 Guaranteed Heating & Air, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They're very professional and on time."

"They're on time and they stuck to their original timeline."

Jose B. Verified A-1 Guaranteed Heating & Air, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"Their customer service is excellent. When I had an issue, they didn't hesitate to come out and look at it and fix the problem."

"The fast response"

Josh M. Verified A-1 Guaranteed Heating & Air, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"I thought they were timely, trustworthy, professional, and courteous."

"They came at the time they promised, they stuck to their original price, and they did the job quickly."

Joyce B. Verified A-1 Guaranteed Heating & Air, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They are extremely honest. When they say they are going to do a tune up, they just do a tune up and they don't try to sell you stuff you don't need. They are very thorough."

"I like them because they are local and they are dependable. They are reasonably priced."

Judy L. Verified A-1 Guaranteed Heating & Air, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"I like them and they seem to know what they are doing. They are competent."

"I felt safe turning my heater and air conditioner on."

Karen J. Verified A-1 Guaranteed Heating & Air, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They keep their schedule and they are very community oriented and they support a lot of things in the community."

"They are dependable."

Donna L. Verified A-1 Guaranteed Heating & Air, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"I'd tell a friend to use this company. I'm embarrassed to say, I don't recall the name of the technician who came out to do the work, but he was exceptional."

"They're very timely, which is important to me. The technician who came out explained what he was doing and why he was doing it. He also explained what we should do to ensure the system will work more efficiently than it was. He took the time to explain everything in depth to me."

Kathryn W. Verified A-1 Guaranteed Heating & Air, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They are very dependable."

"I like the personal relationship I have with them."

Leticia K. Verified A-1 Guaranteed Heating & Air, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"I would highly recommend their services. They did a good job, and I'm happy with the way things turned out."

"They had a reasonable price, they were thorough, accommodating, and honest."

Laura F. Verified A-1 Guaranteed Heating & Air, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They were very thorough, very knowledgeable, and very responsible."

"They did a couple of different jobs for me and in one job, they were able to figure out why one wall heater was not working when another company was not able to figure it out. So they were very knowledgeable."

Alex Verified A-1 Guaranteed Heating & Air, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They were knowledgeable, careful, and responsive. I had kind of a tricky situation and they got the job done with no problems at all."

"They knew what they were doing and I had confidence in the work they were doing."

Marion S. Verified A-1 Guaranteed Heating & Air, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"I would say how professional they were, what a great job they did, and my system works great."

"They were very professional and they did an excellent job. They left no mess behind and they were really neat and clean."

Milan M. Verified A-1 Guaranteed Heating & Air, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"I had excellent service."

"They did the job perfectly and to my satisfaction."