Business Details
30 Years
experience
Trusted HVAC Solutions in Vallejo, CA
A-1 Guaranteed is a family-owned HVAC company serving the Bay Area, Napa, and Contra Costa Counties since 1996. Founded by Richard and Krissy Hiteshew in their Vallejo garage, the company has grown into a trusted leader in energy-efficient heating, cooling, and home electrification solutions. With nearly 30 years of experience, we specialize in heat pumps, water heaters, and gas-to-electric conversions, helping homeowners reduce energy costs and carbon footprints while complying with California's clean energy goals.Our team of factory-trained technicians and NATE-certified professionals has earned recognition as Diamond Certified and a four-time Angie's List Super Service Award winner. We stand behind our work with a 100% satisfaction guarantee, offering rebate assistance and personalized service contracts to ensure long-term comfort and savings. As a Better Business Bureau Honor Roll member and Certified Green Business, we prioritize integrity, transparency, and community impact in every project.
Services
Heat Pumps
Water Heaters
Home Electrification
Furnaces
Air Conditioning
Details
- Year established: 1996
Highlights and features
- Family-owned with 28+ years of local HVAC expertise
- Participating contractor in state heat pump rebate programs
- Factory-trained technicians for precise installations
- Four-time Angie's List Super Service Award winner
- Certified Green Business with energy efficiency focus
Associations and certifications
- Diamond Certified
- Better Business Bureau
- North American Technician Excellence (NATE)
What people say
Professional and thorough
Saved thousands vs competitors
Exceptional work quality
Timely and clean installations
Excellent follow-up support
Services
Heat Pumps
We install and service energy-efficient heat pumps that provide both heating and cooling while reducing energy costs. Our NATE-certified technicians ensure proper sizing and installation for optimal performance. Customers benefit from rebate programs and a 100% satisfaction guarantee on all heat pump systems.
Water Heaters
Our team specializes in heat pump water heaters and tankless systems that deliver endless hot water with maximum efficiency. We handle code requirements and offer maintenance plans to extend equipment lifespan. All installations come with comprehensive operation training for homeowners.
Home Electrification
We help homeowners transition from gas to electric systems with expert planning and installation. Our rebate-eligible solutions include heat pump retrofits and solar integration. Our 28+ years of experience ensures compliance with California's clean energy regulations while maintaining comfort.
Air Conditioning
From central AC to mini-splits, we provide cooling solutions tailored to home size and climate needs. Our technicians perform precise load calculations and ductwork optimization. Customers receive detailed system explanations and maintenance tips during installation.
Furnaces
We install high-efficiency furnaces with smart thermostat integration for optimal temperature control. Our team handles gas-to-electric conversions and provides annual maintenance plans. All furnace installations include energy-saving recommendations and operational training.
People
Richard Hiteshew
Founder
Started A-1 Guaranteed in 1996 after 20+ years in HVAC industry. Built company from garage operation to multi-generational business with 23 employees. Maintains active role in quality control and customer satisfaction.
Krissy Hiteshew
Co-Founder
Managed daily operations during company's growth phase. Established customer service standards that continue guiding the business. Instrumental in creating the family-oriented company culture that persists today.
Nick Hiteshew
Current Manager
Third-generation leader implementing modern energy solutions while maintaining family values. Oversees 23 employees and ensures technical excellence across all installations and service calls.
Questions
What HVAC services do you offer?
We provide complete heating, cooling, and home electrification solutions including heat pumps, water heaters, furnaces, and air conditioning systems with expert installation and maintenance.
Do you offer energy efficiency rebates?
Yes, we participate in California's heat pump rebate programs and help customers claim available incentives to reduce installation costs.
Are you available for emergency repairs?
We handle urgent HVAC issues during regular business hours. For after-hours emergencies, we recommend contacting a 24/7 service provider.
What areas do you serve?
We serve homeowners throughout the Bay Area, including Solano, Napa, and Contra Costa Counties with local knowledge and personalized service.
Do you provide maintenance plans?
Yes, we offer customized maintenance agreements to ensure system longevity and efficiency, including priority service scheduling and discounted repairs.
What makes you different from other HVAC companies?
As a family-owned business since 1996, we combine technical expertise with personalized service, backed by a 100% satisfaction guarantee and numerous industry certifications.
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