Grant Heating & Cooling Services

Grant Heating & Cooling Services has operated as a family-owned business in Thousand Oaks since 2002, when Mark Grant founded the company to serve the Conejo Valley community. The company holds an exceptional 5.0-star rating across 31 verified client reviews, and maintains 24/7 availability every day of the year. Serving both residential homeowners and commercial property managers throughout Thousand Oaks and neighboring Newbury Park, the team provides emergency repairs, new system installations, and preventative maintenance agreements tailored to Southern California climate demands.

What distinguishes Grant Heating & Cooling is their commitment to first-visit solutions, you'll typically avoid a return visit because their fully stocked service trucks carry OEM replacement parts, the latest diagnostic tools, and eco-friendly refrigerants. Their 100% satisfaction guarantee backs every job, and technicians provide flat-rate written estimates before any work begins so there are no hidden charges. The company also emphasizes transparent communication: they explain issues in plain language, show customers photos of problems, and recommend only repairs that are genuinely necessary rather than upselling unnecessary services.

Local homeowners consistently mention specific technicians who exceeded expectations. During a 110-degree weekend heat wave, Josh arrived at VENUKA RODRIGO's home within the promised timeframe, completed the AC repair professionally, and offered honest recommendations without pushing expensive unnecessary upgrades. Another reviewer, Life Begins, described how John and his team handled a complex heat pump installation that required multiple service visits, ultimately replacing the entire unit under warranty while maintaining professional communication throughout. Angel earned particular praise for taking photographs to explain repair needs to a customer processing a family loss, demonstrating the empathy that defines their service approach.