Meet the team at A-1 Guaranteed Heating & Air. We have been providing HVAC installation and heating and air conditioning repair in the bay area for over 20 years and have become one of the best because of our dedicated and hardworking team of heating and air conditioning professionals. We’re all pleased to meet you.

Krissy & Richard Hiteshew with A-1 Guaranteed heating and air conditioning repair

Richard began A-1 Guaranteed Heating & Air, Inc. with his wife Krissy in 1996. His career in the HVAC trade began when he was 16 years old and got a job with his brothers at the same company they were at. He began as a shop boy in the warehouse. He also held other positions such as Service, Install and now owner. Krissy began her career in the HVAC when the business began. Having absolutely no previous experience in the field has provided an opportunity to learn something new every day. Prior to A-1 Guaranteed, she was an Admin Assistant, Billing Clerk and a Bookkeeper which has helped in the daily operation of the business. Richard and Krissy met while they were teenagers and have been happily married since 1989. When they began the business, they lived in a small 2 bedroom house and were pregnant with their 3rd child. They started in their garage. The company phone number was actually their home number that they used for the business and eventually had to get a personal number to keep the two separate. They have 4 children together, 3 of which are also in the business. A-1 Guaranteed became incorporated in April 2004.


Jason began working with us in August of 2014 but is not new to this business! He started in the HVAC/R business over 23 years ago, 17 of these years were spent as an installer of residential, light commercial, commercial, restaurant/refrigeration, and experimental, HVAC/R equipment. Holding multiple positions has made him extremely knowledge in all aspects of his job. He has ran service calls, been a lead, field supervisor, and has also been responsible for the design and engineering of many of those jobs. Jason has been through Service Tech school, graduating and received his certification as a Service Technician. He holds multiple certifications including R410A, Universal EPA, Mobile Refrigeration certifications and is certified as a Heat Exchanger Expert by Heat Exchanger Experts. He has also received Nate Certifications in Heat Pump & Air Conditioning for Service and for Install.
Jason has been married for over 22 years and has 4 children. He enjoys anything to do with International harvester, Scout 80’s, Baby Scouts and has even restored old cub cadet garden tractors. He enjoys anything outdoors as long as it’s with his family. Recently Jason had been promoted to our Service Manager and is already making changes that will benefit the customers as well as the company in positive ways.


Kasey has grown up in the family business since she was 5 years old. She was the inspiration for A-1 Guaranteed when her dad had to miss one of her birthday parties since he wasn’t able to get the weekend off, prompting him to start his own business. She started out putting stickers and stamps on envelopes as a child and worked as an Admin Assistant while she was a student. Officially she began working for A-1 Guaranteed in 2005, and is our Special Projects Manager. She has overseen setting up the company with new scheduling software, project management processes, company trainings, and IT items. Recently, she took on payroll processing and other HR duties as well. She graduated with Honors with an Associate Degree in Business while working with the company.

In October 2018, she married her high school sweetheart, Philip Sanders, who recently joined the A-1 Guaranteed team. She enjoys traveling to see the world with her husband and spending time with family and friends.


Philip is new to the HVAC industry. His background is mostly in Business Administration and Finance. Currently, Philip is attending a University for a Bachelor’s degree in Business Management and Accounting. Prior to his employment with A-1 Guaranteed, he worked in the industrial distribution industry helping to direct vending operations. He holds a Certification as an ISO 9001:2015 Lead Auditor. Philip’s background inspired us to hire him for his current position and his potential to help streamline and organize the daily administrative and operations of the office. He has expressed his willingness to learn everything there is to learn about the Heating and Air industry.

Philip was hired in September of 2018 as the Install Project Coordinator. In October of the same year, he married his high school sweetheart Kasey who is also employed with the company. Philip states that he was drawn to A-1 Guaranteed by their reputation as an honest, family owned and operated business as well as the impact they make on the communities they serve.

Matt Hiteshew with A-1 Guaranteed heating and air conditioning repair

Matt has been in the HVAC trade with A-1 Guaranteed since 2005. He has grown up in this trade with a father, brother and uncles before him. He is NATE certified in Heat Install, AC Install, Heat Pump Install & Air Distribution.  Matt has also completed multiple Fujitsu training and is BPI Certified. Matt has also attended and completed Sales training in Texas.  He has been employed with A-1 Guaranteed since 2005. Matt is married with 3 young children.

Currently Matt is a Service Technician but has many years’ experience in the Install Department. He loves solving people’s heating and air conditioning repair problems and would be glad to help you solve yours!


Casey has been in the HVAC trade for over 22 years. He began working in the trade by working at his uncle’s company. He worked there for 13 years before he began his employment with A-1 Guaranteed in 2009. He has certifications in Diamondback, Nate, Track Piping and Universal Refrigerants and Fujitsu Mini Split training and is BPI Certified. Casey has completed Title 24 Duct Installation, Standards, & Diagnostic testing. He has a daughter who is currently in college. Casey is the Install Foreman.


Joe has been in the HVAC trade for more than 25 years. He attended and graduated from Sequoia Institute.  He is a BPI Certified Building Analyst Professional and is Nate Certified in AC Install, Gas Furnace Service and Gas Furnace Install. He is a type II technician certified in Diamondback Installation & is a Certified Heat Exchanger Expert. In addition to these certifications, he is also a Checkme! Program Certified Technician for AC Diagnostic Testing & Duct Diagnostic Testing and has completed various Fujitsu training.

Joe has been employed with A-1 Guaranteed longer than any other co-worker beginning his partnership with A-1 Guaranteed in 2001. Joe is married with one daughter.  Joe has held multiple positions with the company and is currently in the Service Department, he knows so many positions that he was actually given a ‘special’ cape to wear to signify all of his knowledge in different positions. He got into the HVAC trade because he like working with his hands and the freedom of not being behind a desk.


Kirk has been in the HVAC business since 2007, joining the A-1 Guaranteed team in October of 2014. He has been through multiple trainings to sharpen his skills. The reason Kirk got into this field is because he enjoys meeting people and through his honesty, dignity and respect wants to make sure his customers get the best overall value for their money. He is married with one child.
Kirk is a Comfort Advisor who strives to find comfort solutions for multiple types of homes. He considers himself a happy go lucky guy and we would have to agree with him!


David has been dabbling in the HVAC field for over 20 years. He has worked with A-1 Guaranteed off and on throughout the lifetime of the company finally becoming a full time employee in March of 2014. He is a certified welder and has knowledge in multiple trades of construction safety.
David is currently our warehouse manager. He orders, stocks and delivers equipment and supplies for all aspects of jobs. He enjoys hunting and fishing.


Nick has been involved with the business since it began. As a young child he would help his father with multiple tasks such as helping on service/installs and fabrication of sheet metal and performing tasks when school was out. He would help in the warehouses and keep the shop cleaned up. He has attended college to be a Radiologist.

Nick has held multiple titles in the company including Administrative work, Warehouse and Install. Nick is our Solar/Engineering Tech. In his spare time, he enjoys working on his late grandfathers 1962 Studebaker Hawk, fishing, and bowling. He is happily married and enjoys spending time with his wife and two dogs.


Diane has worked in Customer Service for multiple years. Her background consists but is not limited to being a foreclosure counselor and assisting in accounting departments. Her career with A-1 Guaranteed began in 2010 and was the first time she had ever worked in this trade. She is bilingual in Spanish and is certified in Foreclosure Counseling and Residential lending.
Diane has 4 children and is a grandmother to 5 grandchildren. She is devoted to her family and their happiness. Diane has been our Install Admin in the past and is currently our Accounts Administrator & runs our Universal Savings Program.


Roger is new to the trade and hired straight out of HVAC tech school. He is universally EPA and OSHA certified. He began with the company in June of 2015. Roger has 8 years’ experience as a warehouse & forklift driver.
He has a young son and has entered into this trade to provide a good future for the two of them. He is currently a Lead Installer.


Erik recently graduated from Tech School and has certifications in EPA 608, 609, 410A Safety Certification and Green Technology Awareness. Prior to switching to the HVAC trade, he worked for many years at a Grocery Distributor, when the company closed down; he decided to learn a new trade which led him to Tech School He began his employment with A-1 Guaranteed in 2017. He helps coach Little League and has 2 kids. Erik is a Maintenance Technician.


Jose recently graduated from High School in Napa. Prior to working at A-1 Guaranteed he worked in the hotel and resort business. He began his employment in the warehouse and has recently been promoted to the Install crew. He is looking forward to learning more about the Heating and Air Industry.


Austin has been involved in the business since he was a baby often showing up in ads promoting A-1 Guaranteed. Many customers have watched him grow from that baby into a young man. He officially began working for A-1 Guaranteed in 2016 but as a child he would apply stickers to brochures and pack promotional bags. Prior to his employment with the company, he worked in the food industry. His first job as an A-1 Guaranteed paid employee was in the warehouse, where he was promoted to the Install crew.


Jeff was given the opportunity to work in the HVAC trade when he was only 19 years old. He had just had his first child. He began performing maintenance work on Commercial buildings on rooftop units. His career with A-1 Guaranteed began in 2016 as a Service Technician. Jeff is Universally EPA Certified to work with refrigerant and has completed Heat Exchanger Experts training.

Jeff is married with two daughters. He loves grilling and spending time with his family and friends. He is a Service Technician and does Sales.


Courtney’s father is an HVAC Owner so she has grown up around it her whole life not to mention she has other family members involved in the trade. She began her career with A-1 Guaranteed in January of 2015 as a temporary worker. She proved herself as a value to the company and was hired on as a full-time worker. Courtney helps with multiple tasks within the company including handling permits, ensuring data quality, and has advanced as Assistant to the Special Projects Manager and Sales Department. She hopes to further her knowledge of marketing by getting her degree in the future.


Brian began his career in the HVAC field after his friend (and now, co-worker) Erik told him about A-1 Guaranteed. Prior to his employment with us, he was a Production Manager for a Commercial butcher house. He also served in the United States Marine Corp which is where he met his wife while she was also serving. He started with A-1 Guaranteed in January of 2018 beginning in the warehouse and quickly moved into the Install Department as an Installer, he is also experienced in Window installs.  Currently Brian is one of our Maintenance Technicians. He has been married over 18 years with ‘2 amazing kids, a son and a daughter’

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    Awards & Certificates

    • Better Business Bureau Honor Roll Member for 24 Years Running
    • BPI Certified
    • Energy Upgrade Participating Contractor
    • Trane Award for Superior Installation and Service
    • Voted Best Heating/Cooling Company for 16 years by Readers of The Vallejo Times Herald
    • Vallejo Schools V.I.P. Award for Partners in Education
    • Vallejo Little League for Support and Generosity
    • Bay Area Certified Green Business
    • Employee Support of the Guard & Reserve by Office of the Secretary of Defense
    • Energy Efficiency Award by Energy Upgrade California


    • 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
    • NATE Certified
    • EGIA Approved Contractor
    • Diamond Certified
    • A-1 Guaranteed Heating & Air Conditioning
      1768 Broadway St. Vallejo, CA 94589