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Claim This BusinessCalvico Air Conditioning & Heating has kept families and businesses comfortable in Sugar Land and across Greater Houston since 1985, establishing itself as one of the region's most enduring family-owned HVAC contractors. Leo Calvillo founded the company, later bringing his sons into the business, a multi-generational operation now spanning over three decades of continuous service. The company holds current licensing and maintains full insurance coverage, providing peace of mind alongside every service call. With 62 verified client reviews producing a near-perfect 4.9-star rating, Calvico has earned a reputation built entirely through word-of-mouth referrals rather than advertising. The team serves communities including Sugar Land, Missouri City, Pearland, Fresno, and surrounding neighborhoods throughout Fort Bend County and the broader Houston metro area.
What distinguishes Calvico from newer competitors is their commitment to transparent, flat-rate pricing, a business philosophy rooted in the pre-internet era when the company operated without any website, magazine ads, or yellow pages listings for over three decades. Their website explicitly promises upfront cost discussions before any repair work begins, eliminating the surprise invoice scenarios that frustrate homeowners. The company maintains 24-hour emergency availability for both heating and cooling system failures, recognizing that climate control emergencies rarely occur at convenient times. As a fully licensed and insured contractor, they offer both residential and commercial services including new system installations, diagnostic repair, preventive maintenance tune-ups, and indoor air quality solutions such as smart home thermostats, air purification systems, and UV light sanitizers.
Reviewers consistently highlight specific team members who arrived when promised, V.J. describes Leo and his son arriving on time at a commercial property and completing a heating system repair the next day when the customer was told it would take two weeks. Amanda's detailed account describes the same-day response she received after her previous contractor failed to diagnose a clogged drain line correctly, leaving her $800 out of pocket with an 80-degree home. Ronnie Harper praised a four-hour turnaround from initial call to completed repair during a recent HVAC emergency. One reviewer specifically names Alain, describing him as professional and polite while resolving her cooling issues the next day. These specific technician names and scenarios appear repeatedly in reviewer feedback, suggesting a consistent team delivering on the company's honesty and quality promises.
62 reviewers deliver a 4.9-star average, with every visible rating at 5 stars. Multiple reviews explicitly mention same-day service availability, and three named technicians, Leo, his son, and Alain, appear across different customer accounts. Unlike competitors where reviewers cite pricing concerns, Calvico reviews focus on diagnostic accuracy and problem resolution, with Amanda's account particularly noting her previous contractor's failure to identify clogged drain lines during an annual tune-up.
Tune-ups, refrigerant handling, thermostat calibration, and component-level repairs for residential and light commercial systems.
New system installation and equipment replacement services matching system size to home square footage and usage patterns.
Furnace and heating system repair, including same-day emergency service for system failures.
Annual tune-ups, filter replacement, and coil cleaning designed to extend equipment lifespan and maintain efficiency.
Smart thermostats, air purification systems, UV light sanitizers, and dehumidifier installation for improved home air.
Zone-controlled heating and cooling without traditional ductwork, suitable for room additions and older homes.