Family-Owned HVAC Expertise for San Jose, CA Homes
Union-trained technicians, honest advice, and a full range of heating, cooling, and water heater solutions. Serving Almaden, Cambrian, and the greater Bay Area with the integrity and precision your home deserves.
Our Story
Decades of Experience, Rooted in Family Integrity
What began as a single technician’s commitment to quality has grown into a trusted, family-operated company serving homeowners in Almaden, Cambrian, and surrounding communities. When West Coast Mechanical acquired and rebranded our residential division, it marked a renewed commitment to delivering dependable, high-quality home comfort solutions.
Today, Georgina Martinez leads our residential services team while her family oversees daily operations, ensuring every customer receives the personal attention and honest service they deserve. Although we also support select commercial projects, our primary focus is helping homeowners stay comfortable with reliable HVAC repairs, maintenance, replacements, and installations.
With more than 30 years of combined experience and the technical expertise of West Coast Mechanical behind us, we provide the right solutions for your home—without high-pressure sales tactics—whether you need routine service, custom ductwork, or a new heat pump installation.
10+
YEARS OF EXPERIENCED
Our Promise
Union-Trained Precision and Honest Service for Every Home
Our technicians complete a rigorous five-year union apprenticeship, ensuring every installation and repair meets the highest commercial standards, applied with the care your home deserves. Unlike many HVAC companies in San Jose, we never upsell or push unnecessary replacements. Instead, we explain your options and recommend repairs when they make sense, reserving replacements for when they truly serve your energy efficiency and comfort. All our work is backed by a one-year labor warranty and manufacturer equipment coverage, so you can feel confident in your investment. We also offer Hearth Financing for major projects, allowing you to check eligibility with no impact on your credit score. Whether you are a single-family homeowner or a property manager overseeing high-density buildings, you receive responsive service, clear communication, and solutions built to last. Our mission is to guide San Jose families through California’s electrification shift with transparency, technical skill, and the reliability that comes from family ownership.
FAQS
Answers to Common Questions About Our HVAC Services
How long has Master Maintenance been in business?
Our parent company, West Coast Mechanical, has operated for over 10 years. Our residential division has served San Jose homeowners for approximately two years.
Are your technicians licensed and insured?
Yes. All technicians are fully licensed, insured, and union-trained with a five-year apprenticeship. Every job is backed by a 1-year labor warranty.
Do you work on both residential and commercial properties?
Yes. We specialize in residential HVAC but also serve light commercial properties and multi-unit buildings through our connection to West Coast Mechanical.
What areas do you serve in the Bay Area?
Our primary focus is San Jose, including Almaden and Cambrian. We also serve Santa Clara, Sunnyvale, Cupertino, Mountain View, Milpitas, Campbell, Los Gatos, and more.
Do you offer financing for larger HVAC projects?
Yes. We offer Hearth Financing for major installations. You can check your eligibility without any initial impact to your credit score.

































