Machinery located on top of a roof
San Bruuno CA

HVAC Services

Keeping your heating and cooling systems operating efficiently is essential for maintaining comfort, indoor air quality, and energy performance throughout the year. At Hetherington Mechanical & Plumbing, we provide professional HVAC services in San Bruno for commercial buildings, multifamily properties, HOAs, and residential customers. From preventative maintenance and system repairs to complete HVAC installations and equipment upgrades, our experienced technicians deliver dependable, cost-effective solutions tailored to your property’s unique needs. With over 40 years of serving the San Francisco Bay Area, we’re committed to helping San Bruno property owners maximize system reliability, minimize downtime, and improve long-term energy efficiency.

Comprehensive HVAC Installation & Replacement

Whether you're replacing an outdated system or installing HVAC equipment in a new property, we provide professional installation services tailored to your building's size, occupancy, and energy efficiency goals. Our team ensures every system is properly sized and installed for reliable, long-term performance.

HVAC Repair & Troubleshooting

Unexpected heating or cooling issues can affect occupant comfort and disrupt daily operations. Our experienced technicians quickly diagnose HVAC problems and perform dependable repairs to restore system performance while helping prevent recurring breakdowns.

Preventative Maintenance Programs

Routine HVAC maintenance helps improve energy efficiency, extend equipment lifespan, and reduce the risk of costly emergency repairs. We offer customized maintenance plans that include inspections, performance testing, filter replacement, and system tune-ups to keep your equipment operating at peak efficiency.

Commercial & Multifamily HVAC Solutions

We specialize in providing HVAC services for commercial buildings, apartment complexes, condominiums, HOAs, and mixed-use properties throughout San Bruno. Our team works efficiently in occupied buildings, minimizing disruptions while maintaining comfortable indoor environments for tenants and occupants.

Energy-Efficient HVAC Upgrades

Modern HVAC systems can significantly reduce energy consumption and operating costs. We evaluate your existing equipment and recommend energy-efficient upgrades that improve indoor comfort, enhance system reliability, and support long-term savings for your property.

Other Services

While HVAC services are an important part of keeping your property comfortable and efficient, Hetherington Mechanical & Plumbing offers a full range of mechanical and plumbing solutions to support your building’s entire infrastructure. Our experienced team provides boiler maintenance and annual certifications, domestic hot water system installation and service, hydronic and steam heating, plumbing repairs, drain cleaning, leak detection, backflow prevention assembly testing and certification, potable water booster pump systems, sewer maintenance, and safe building water system shutdowns. Whether you manage a commercial property, multifamily community, or residential building, we deliver dependable, cost-effective solutions designed to maximize system performance and minimize downtime. Visit our Services page to explore our complete range of mechanical and plumbing services and discover how Hetherington Mechanical & Plumbing can help keep every part of your building operating at its best.