San Mateo HVAC Contractors

Full Service Air Conditioning Repair & Installation in San Mateo

Air conditioning may not be needed year-round in San Mateo, but when the warm days arrive, a working system makes all the difference. We install central air systems, mini splits, and heat pumps that provide efficient cooling with minimal noise and lower energy costs. Every home is different, so we evaluate insulation, square footage, and existing ductwork to determine the right size and type of unit.

If your current system is outdated or frequently breaking down, we’ll walk you through replacement options and help you compare performance ratings and rebates. Our air conditioning installations often include upgraded thermostats, duct sealing, or filter access upgrades for easier maintenance down the line.

Ductwork Replacement and Airflow Improvements

Leaky or undersized ductwork can create uneven temperatures and drive up energy use. Our ductwork inspections check for visible damage, airflow restrictions, and thermal losses in attics and crawlspaces. If needed, we replace your ducts with properly sized, insulated runs that improve both comfort and HVAC system efficiency.

We also make adjustments to register placement, install return air pathways, and address any pressure imbalances that reduce indoor air quality or system performance.

 

Insulation Services for Attics and Crawlspaces

Even a brand-new HVAC system can struggle if the insulation is inadequate. We install fiberglass batts, blown-in cellulose, mineral wool, and other materials based on your home’s layout and budget. Our technicians also remove damaged or pest-contaminated insulation, disinfect the area, and seal entry points to prevent future problems.

Upgrading attic or crawlspace insulation often leads to a noticeable drop in utility bills and helps your system maintain a steady temperature throughout the day and night.

Attic Ventilation and Whole House Fans

 

Proper ventilation helps reduce attic heat buildup and prevents moisture from collecting under your roof. We install ridge vents, attic fans, and whole house fan systems that work with your HVAC setup to improve overall efficiency.

Whole house fans are a great fit for San Mateo homes that cool off in the evening. These systems pull fresh outdoor air inside while pushing hot air out through attic vents, reducing the need for air conditioning.

 

Crawl Space Moisture Mitigation and Yard Drainage

 

High humidity or standing water in a crawlspace can ruin insulation, damage floor joists, and affect indoor air quality. We install vapor barriers, sump pumps, and yard drainage systems to keep water away from your foundation and out of your crawlspace.

 

Remodeling and Other Services

 

Our team also handles remodeling projects, including HVAC upgrades as part of kitchen or bathroom renovations. We coordinate duct rerouting, vent placement, and insulation adjustments to support the new design.

We provide attic ventilation upgrades, drywall repair after HVAC work, and minor electrical tasks as part of broader home energy projects.

 

Why Homeowners Trust EM Energy & Air

 

We’ve built a reputation throughout San Mateo for honest work, fast turnaround, and great results. Our quotes include taxes and labor, and we don’t try to sell services you don’t need. If your system has a few good years left, we’ll help you make it last.

We offer:

• Free inspections and on-the-spot written estimates

• Financing with $0 down for qualified homeowners

• Fast installations (1 to 3 days for most jobs)

• The best labor warranty in the Bay Area

• American-made HVAC equipment and materials

 

Serving San Mateo and Nearby Areas

 

We serve homeowners throughout San Mateo, including neighborhoods like Shoreview, Baywood, and Laurelwood. Our service area also includes Belmont, Burlingame, Hillsborough, and Foster City. If you live nearby and aren’t sure if we cover your area, just give us a call. We’ll schedule your inspection quickly.

 

Frequently Asked Questions About San Mateo HVAC Services

 

What types of HVAC systems do you install?

We install central air conditioning systems, gas furnaces, electric furnaces, ductless mini splits, and high-efficiency heat pumps. Each system is selected based on the size of your home, the layout of your ductwork (or lack thereof), and your comfort goals. We only use reliable equipment from trusted U.S. manufacturers.

 

How do I know which system is right for my home?

We start with a free in-home inspection to evaluate your square footage, insulation levels, window exposure, and existing ductwork. For homes without ducts, we may recommend mini splits. For those needing both heating and cooling, a heat pump might be the most efficient solution.

 

What’s the process like for installing a new HVAC system?

First, we perform a free inspection and provide a quote on the spot. If you move forward, we schedule the installation (usually within a few days). Most jobs take one to two days, including system setup, testing, and clean-up. If we are installing an extensive central air system that needs entirely new ductwork, it will take longer. We’ll explain how to use your new system and leave you with documentation for your equipment and warranty.

 

Do you install mini split systems in older homes?

Yes. Mini splits are a great solution for older homes in San Mateo that lack ductwork or have limited attic space. They provide zoned comfort and high efficiency. We can install them in single rooms, additions, or as a whole-home solution depending on your layout.

 

Can you help me understand how heat pumps work?

Heat pumps move heat rather than generate it. In winter, they pull warmth from outside and bring it inside. In summer, they remove heat from your home. They’re very efficient in the Bay Area’s mild climate and work well in homes that need both heating and cooling.

 

What kind of warranty do you provide?

We offer one of the strongest labor warranties in the Bay Area. It covers all installation-related workmanship. You’ll also receive a manufacturer’s warranty on parts and equipment, which we help you register and activate.

 

Do you offer financing for HVAC installations?

Yes. We offer zero-interest and low-interest financing for qualified homeowners. Financing helps spread the cost out over time without delaying your comfort upgrade.

 

How soon can you start after I receive a quote?

Most HVAC installations are scheduled within a few days of approval. We give you a clear timeline during the quote process and stick to it. Our team respects your time and works efficiently to complete projects with minimal disruption.

 

Call EM Energy & Air for Heating and Cooling in San Mateo

If you’re in need of heating or cooling services in San Mateo or nearby areas like Hillsborough, Belmont, or Burlingame, give us a call today. Whether it’s a furnace repair, air conditioning installation, or ductwork upgrade, we’re here to help. Contact us for a free inspection and quote, and experience the exceptional service that sets us apart as San Mateo’s top HVAC contractor. Our HVAC contractors in San Jose help with heating, cooling, drywall repair, insulation and more.