Sam Ainsworth & Co

A family-owned and operated business since 1982, SAC Mechanical provides expert HVAC services for homes and businesses in Longmont, Colorado. Our team of skilled technicians is certified to repair and install all makes and models of HVAC equipment. We offer a wide range of services, including heating and cooling system repair and installation, thermostat systems, duct design, air filtration service, whole house filtration and humidification, and dual fuel systems. SAC Mechanical is committed to providing customers with the highest quality products and services! Financing is available with approved credit!

Welzig Heating, Air, Plumbing & Electric, a family-owned and operated business since 1993, is Longmont’s trusted provider of heating, cooling, plumbing, and electrical services. Our experienced technicians specialize in keeping homes comfortable and energy-efficient year-round. Whether you need furnace repairs, AC maintenance, or plumbing solutions, we deliver expert service with integrity. From routine furnace tune-ups to full system installations, we ensure quality workmanship and customer satisfaction. Experience the Welzig difference—exceptional service backed by decades of expertise. Call today for reliable furnace, heating, cooling, and plumbing solutions!