Derek Sawyer's is a family-owned business specializing in home heating, cooling, air conditioning, ventilation and weatherization solutions. Our aim is to provide homeowners with ultimate comfort throughout all seasons. We have a wide range of highly energy efficient and durable products that are designed to help homeowners enjoy a more comfortable life without spending hefty amounts on electricity bills. We have been in business for a long time, serving clients in Modesto, Fresno and Stockton. We aim to become the most preferred choice in California for customers looking for heating, cooling and air conditioning solutions.