Business Details
30 Years
experience
Expert HVAC Solutions in Vallejo, CA
A-1 Guaranteed is a family-owned HVAC company that has served the Bay Area, Napa, Solano, and Contra Costa Counties since 1996. Founded by Richard and Krissy Hiteshew in their Vallejo garage, the company has grown into a trusted name in heating and air conditioning while maintaining its family-centric values. We specialize in energy-efficient heat pumps, home electrification, and HVAC installations that align with Californias clean energy goals, helping customers reduce energy costs and carbon footprints. As a participating contractor in statewide rebate programs, we provide access to savings unavailable through other providers.Our team of factory-trained technicians adheres to strict safety and quality standards, with all employees undergoing background checks and drug screenings. Recognized as Diamond Certified and a four-time Angies List Super Service Award winner, we stand behind our work with a 100% satisfaction guarantee, offering refunds if customers are dissatisfied within the first year. With nearly 30 years of experience, we combine technical expertise with personalized service to meet residential HVAC needs across Northern California.
Services
Heat Pumps
Water Heaters
Home Electrification
Furnaces
Air Conditioning
Indoor Air Quality
Insulation Services
Tankless Water Heaters
Electrification
Heat Pump Water Heaters
Details
- Year established: 1996
Highlights and features
- Family-Owned & Operated Since 1996
- Heat Pump & Home Electrification Experts
- Participating Contractor with Rebate Programs
- Factory Trained Installers & Technicians
- All Employees Fully Background Checked
Associations and certifications
- Diamond Certified
- Angie's List Super Service Award
- Better Business Bureau Honor Roll
- North American Technician Excellence (NATE)
What people say
Professional and courteous
Excellent service
Knowledgeable and professional
Great work
Competitive price
Services
Heat Pumps
We install and service energy-efficient heat pumps that provide both heating and cooling while reducing energy costs. Our systems comply with Californias clean energy standards, offering rebates and long-term savings. Customers benefit from our participation in statewide incentive programs and our technicians factory-trained expertise.
Home Electrification
Our home electrification services convert gas-powered systems to all-electric alternatives, aligning with state environmental goals. This includes replacing furnaces and water heaters with energy-efficient electric models. We handle permits, rebates, and installations to simplify the transition for homeowners.
Air Conditioning
We offer AC installation, maintenance, and repair services for residential properties. Our systems ensure rapid cooling with quiet operation, using brands like Trane for reliability. Customers receive thorough explanations of system features and maintenance requirements during installation.
Furnaces
Our furnace installations focus on energy efficiency and durability, featuring brands like Trane. Technicians assess home requirements to recommend optimal system sizes and configurations. Upgrades include smart thermostat integration and compliance with current building codes.
Indoor Air Quality
We improve indoor air quality through advanced filtration systems, air purifiers, and ventilation solutions. Services address allergens, pollutants, and humidity control, creating healthier living environments. Technicians diagnose existing air quality issues during consultations.
Questions
What HVAC services does A-1 Guaranteed offer?
We provide heat pumps, furnaces, air conditioning, home electrification, water heaters, indoor air quality solutions, and insulation services.
Do you offer rebates or financing options?
We participate in statewide rebate programs for heat pumps and energy-efficient upgrades. Financing options are available through third-party providers.
Are your technicians certified?
Our team includes NATE-certified technicians and factory-trained installers who undergo background checks and drug screenings.
What areas do you serve?
We serve the Bay Area, including Solano, Napa, and Contra Costa Counties, with offices in Vallejo, Fairfield, and Concord.
What is your service guarantee?
We offer a 100% satisfaction guarantee, providing refunds if customers are dissatisfied within the first year of installation.
How long does installation take?
Most HVAC installations complete in one day, with larger projects like solar integration typically finished within two days.
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