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Claim This BusinessAbout A-1 Guaranteed Heating & Air, Inc
A-1 Guaranteed Heating & Air, Inc has operated as a family-owned HVAC contractor in Fairfield, California since 1996, when Richard and Krissy Hiteshew launched the company from their home garage in Vallejo. The business has since grown into one of the most recommended contractors in the Bay Area, currently holding a 4.9-star rating from 238 client reviews across Solano, Napa, and Contra Costa Counties. The company maintains Diamond Certified status and has earned BBB Honor Roll recognition for 27 consecutive years, reflecting a consistent commitment to service quality and client satisfaction.
What distinguishes A-1 Guaranteed from other regional contractors is their specialization in heat pump technology and home electrification, positioning them as participating contractors in California-wide rebate programs. The team installs Fujitsu heat pumps and handles complete furnace and air conditioning replacements, offering free safety inspections on furnace units. Their indoor air quality services include insulation evaluation, ensuring newly installed systems operate at peak efficiency by assessing attic and wall conditions before installation.
Two recent client experiences illustrate their approach. Jim Mahoney described a mini-split installation complicated by extended international travel, noting that A-1 staff literally went the extra miles to ensure his rebate funds reached his bank account. Ashiq George of Berkeley worked with senior sales representative Kirk, who conducted thorough duct and insulation evaluations before recommending a 2-ton Fujitsu heat pump system. Both reviewers praised the team's educational approach and commitment to securing available rebates.
What Customers Say
Nearly all 238 reviews award 5 stars, with multiple reviewers specifically naming technicians like Jim and Kirk who guided them through rebate processes. Positive feedback consistently mentions thoroughness, education during consultations, and post-installation follow-up. No negative reviews were included in the provided data.
Services
Heat Pump Installation & Replacement
Fujitsu heat pump systems installed with full rebate program assistance and efficiency-based sizing.
Furnace Repair & Replacement
Gas and electric furnace services including free safety inspections and complete system replacements.
Central Air Conditioning
AC installation and replacement services covering new construction and retrofit projects.
Indoor Air Quality
Insulation evaluation and IAQ solutions ensuring installed HVAC systems operate efficiently.
Water Heater Services
Tankless and heat pump water heater installations for home electrification upgrades.
Home Electrification
Complete all-electric system upgrades helping meet California clean energy goals while reducing carbon footprints.
Ductwork Evaluation
Assessment of existing duct condition before recommendingnew equipment to ensure proper system sizing.