A 100% Guarantee Heating & AC LLC.

A 100% Guarantee Heating & AC LLC holds California contractor license #1013845 and has served the Vacaville community with heating and cooling solutions for over a decade. With a 4.9-star average across 343 client reviews, this locally owned business field technicians who handle installations, repairs, and emergency service calls throughout Solano County. The company maintains standard business hours Monday through Saturday from 8 AM to 8 PM, with 24-hour availability for urgent HVAC failures that leave homes without climate control.

What distinguishes this contractor is an in-house parts inventory that enables same-day repairs rather than ordering components and scheduling follow-up visits. The company backs all labor with a 100% satisfaction guarantee, a commitment that appears prominently on their website and in customer feedback. Their service menu includes high-velocity mini duct systems, whole-house air purification, and whole-house humidifiers, positioning them for both standard replacements and custom indoor air quality solutions.

Customer reviews name specific technicians handling distinct scenarios. Evan and Davin recently completed a system update for a reviewer who described the team as friendly and knowledgeable. Katrina and Ryan installed a thermostat for another client who noted Ryan arrived on time and finished the work efficiently. A third reviewer specifically praised owner Evan for replacing copper piping connecting the furnace and condenser, a step other contractors declined to include in their bids.