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, and Contra Costa Counties. CA License # 719381
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Reviews

BS
Bob S.

07/12/2022

Provided by YP.com

A-1 replaced the capacitor on my A/C unit today after another company told me I needed to replace my entire unit. Jason showed called ahead of schedule, showed up early, was professional, prompt, knowledgeable and courteous. A-1 saved me $13-15k by having integrity, serving the customer and having integrity!

JC
Jack C.

07/07/2016

Provided by YP.com

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

BF
Brandon F.

04/08/2016

Provided by YP.com

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

RF
Randy F.

02/15/2016

Provided by YP.com

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

MM
Maria M.

11/02/2015

Provided by YP.com

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.

NB
Nicole B.

07/15/2015

Provided by YP.com

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!

CR
Cindi R.

02/27/2015

Provided by YP.com

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.

BK
Betty K.

01/20/2015

Provided by YP.com

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!

KL
Ken L.

11/12/2014

Provided by YP.com

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.

SG
Sue G.

08/12/2014

Provided by YP.com

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.

MW
Marc W.

12/18/2013

Provided by YP.com

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.

BD
Bert D.

11/06/2013

Provided by YP.com

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!

RR
Ruby R.

07/22/2013

Provided by YP.com

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.

J
joedaytona

05/15/2013

Provided by YP.com

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.

L
larrylkm

11/09/2012

Provided by YP.com
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.

L
larrylkm

11/09/2012

Provided by YP.com

C
cbcrane

05/27/2009

Provided by YP.com
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.

L
lena10

05/27/2009

Provided by YP.com
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!

More Business Info

100% Money Back Guarantee = 100% Peace of Mind

Hours
Regular Hours
Mon - Fri:
Sat - SunClosed
Services/Products
  • Solar
  • 100% Money-Back Guarantee
  • Service
  • Maintenance & Service Contracts
  • Residential & Commercial
  • Family Owned & Operated
  • 100% Money Back Guarantee
  • HVAC Installation and Repair Air Conditioning Interior Heating
  • install
  • Heating & Air
  • Water Heaters
  • Radio Dispatched
  • Repair
  • cooling units
  • furnace sales
  • whole house air filtration system
  • furnace equipment
  • air conditioning equipment
  • perfect fit
  • air filtration
  • all-in-one
  • CleanEffects
  • HVAC
  • Sales and Service
  • zoning
  • energy efficiency
  • digital thermostat
  • heaters
  • geothermal
  • NATE certified
  • furnace cleaning
  • humidity
  • Air Handlers
  • filtered air
  • Repair
  • energy tax credit
  • energy consumption
  • air quality
  • energy saver
  • Energy Recovery Ventilators
  • heating units
  • Oil
  • hybrid
  • comfort specialist
  • Furnaces
  • install
  • air purifying
  • Gas
  • energy conservation
  • air conditioner service
  • credit terms
  • Communicating Systems
  • all aluminum
  • heat
  • Climate Control
  • air conditioner repair
  • dual fuel
  • pollen
  • advanced controls
  • Indoor Coils
  • temperature control
  • air
  • heating and cooling
  • local
  • connected home solutions
  • limited warranty
  • Sales
  • split systems
  • installation
  • financing
  • moisture control
  • comfort systems
  • Heat Pumps
  • cleaning
  • Air conditioning
  • programmable
  • extended warranty
  • High Efficiency Systems
  • electric
  • Air Conditioning Dealers
  • variable speed furnace
  • Service
  • reliable and durable energy efficient systems
  • air conditioning suppliers
  • allergens
  • filter
  • contractors
  • Packaged Units
  • central air
  • air cleaning
  • high efficiency
  • dealer
  • Humidifiers
  • comfort and efficiency
  • Thermostats
  • heating equipment
Brands
CleanEffects Air Filtration system, ComfortLink II Control, EarthWise Geothermal, Hyperion Air Handlers., Nexia Home intelligence, Trane, XC and XV Furnaces, XLi Comfort Systems
Payment method
amex, discover, visa, cash, check, debit, master card
Location
Serving Solano, Napa and Contra Costa Counties
Neighborhood
West Vallejo
Amenities
Free Estimates Payment Options All Employees Fully Background Checked for Your Safety Commercial and Residential Installation
Accreditation

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

Associations
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
Categories
Heating, Ventilating & Air Conditioning Engineers, Furnaces-Heating, Heating Equipment & Systems-Repairing, Solar Energy Equipment & Systems-Dealers
Other Information

Wheelchair Accessible: Yes