Welcome to Express Plumbing Heating & Air. We are Boise’s leading air conditioning service company and specialize in AC equipment repair, installation, and maintenance. o The region’s hot summers demand a reliable cooling system. We’re committed to ensuring you have consistent cooling all season. Serving Ada County since 2006, we have set high standards of excellence and take pride in ensuring our customers are 100% satisfied. We’re here to meet your home cooling needs no matter what the job entails.