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Complete Heating and Cooling Services in Foster City
Air Conditioning Repair in Foster City
Air Conditioning Repair in Foster City
When your AC isn’t cooling properly, it’s not just uncomfortable—it can also mean your system is working harder than it should, which increases wear and energy use. If your air conditioner is blowing warm air, running nonstop, or leaking water, we’ll identify the cause and fix it correctly.
Common AC problems we repair:
AC blowing warm air or not cooling enough
Weak airflow from vents
Uneven cooling between rooms
Frozen evaporator coil (ice buildup indoors)
Outdoor condenser not turning on or shutting off
Electrical issues (capacitors, contactors, relays, wiring)
Thermostat and sensor problems
Water leaks from clogged condensate drain lines
What’s a capacitor?
A capacitor helps your AC motor(s) start and run (like the compressor and fan motor). If it fails, the system may buzz, click repeatedly, struggle to start, or shut off unexpectedly.
Our HVAC Services
Our HVAC Services
AC Installation and Replacement
If your AC is older, inefficient, or frequently breaking down, replacement can improve comfort and reduce long-term operating costs. Newer systems often run quieter and maintain more stable indoor temperatures.
Our AC installation process typically includes:
Proper sizing (comfort + efficiency, no oversizing)
Duct and airflow evaluation (for central systems)
Thermostat setup and calibration
Full system testing after installation
What is short cycling?
Short cycling is when the AC turns on and off too frequently. It can be caused by improper sizing, restricted airflow, thermostat issues, or failing parts. It reduces efficiency and increases equipment wear.
Heating Services in Foster City
Foster City evenings can cool down quickly, and damp air can make it feel colder than the thermostat suggests. If your furnace won’t turn on, keeps shutting off, or heats unevenly, we can diagnose the issue and restore reliable heat.
Common furnace issues:
Furnace not turning on / no heat
Heater blowing cool air
Weak airflow and cold spots
Loud noises (rattling, banging, squealing)
Burning smell that doesn’t fade quickly
Frequent cycling on/off
Thermostat and control board problems
Ignition and safety sensor issues
What’s a flame sensor?
A flame sensor verifies that the burner flame is present. If it’s dirty or failing, the furnace may ignite briefly and then shut down as a safety measure.
Furnace Installation and Replacement
A furnace replacement may be the best option if:
Repairs are becoming frequent and costly
The unit is older and less efficient
Heating is uneven from room to room
You want quieter operation and improved comfort control
We help you choose the right size and setup for your home and install it with safe, reliable performance in mind.
Heat Pumps and Energy-Efficient HVAC Options
Heat pumps are increasingly popular in Peninsula and Bay-facing cities because they provide both heating and cooling efficiently in mild climates. Many Foster City homeowners consider heat pumps for improved efficiency, modern comfort control, and electrification goals.
We provide:
Heat pump installation and replacement
Heat pump repair and maintenance
Ducted heat pump systems (central HVAC style)
Ductless mini-split systems for zoned comfort
What’s a ductless mini-split?
A mini-split is a ductless system with an outdoor unit connected to indoor air handlers. It’s ideal for additions, upstairs rooms, home offices, or areas where ductwork isn’t practical.
Ductwork Services and Airflow Improvements in Foster City
Even a good HVAC unit can underperform if ductwork leaks, connections are loose, or airflow isn’t balanced. Duct problems can cause uneven temperatures, weak airflow, and higher energy use.
Duct services include:
Duct sealing to reduce air leakage
Repairing disconnected or damaged duct runs
Replacing collapsed or deteriorated flex duct
Improving airflow to problem rooms
Duct insulation recommendations (as needed)
Why duct sealing matters:
Leaky ducts can send heated or cooled air into attic or crawlspace spaces instead of into your rooms. Sealing improves comfort and helps your system run more efficiently.
HVAC Maintenance and Tune-Ups in Foster City
Preventive maintenance is one of the best ways to reduce breakdowns and keep your system efficient. Tune-ups are especially useful before summer warm spells and before winter heating season.
A typical HVAC tune-up may include:
Electrical inspection and tightening connections
Testing capacitors, contactors, and safety controls
Outdoor coil inspection/cleaning (as needed)
Blower motor inspection and airflow checks
Drain line inspection and clearing to prevent leaks
Temperature split measurement (performance check)
Thermostat testing and cycle evaluation
Temperature split explained simply:
It’s the difference between the air temperature entering your system and the air temperature leaving through your vents. It helps confirm whether the system is heating/cooling properly.
Indoor Air Quality for Foster City Homes
Indoor Air Quality for Foster City Homes
Indoor air quality can be affected by dust, pollen, pets, and seasonal air conditions. Better filtration and healthy airflow can help your home feel cleaner and more comfortable—especially when windows are closed during cooler or windy periods.
We can help with:
Filter recommendations matched to your HVAC system
Airflow balancing to reduce stuffy rooms
Maintenance plans that keep components cleaner
Optional IAQ upgrades when appropriate
Filter tip:
A higher-rated filter can improve air quality, but if it restricts airflow too much, it can reduce HVAC performance. The right filter balances filtration and airflow.
Signs You Need HVAC Service
Signs You Need HVAC Service
Call for service if you notice:
Uneven temperatures between rooms
Weak airflow from vents
AC blowing warm air or freezing up
Furnace blowing cool air or failing to start
Strange noises (buzzing, grinding, banging, squealing)
Water leaks around the indoor unit
Frequent cycling or nonstop operation
Rising energy bills without explanation
Thermostat settings don’t match comfort
Why Choose Us for HVAC Services in Foster City
Why Choose Us for HVAC Services in Foster City
Honest diagnostics and clear recommendations
Repair vs. replace guidance without pressure
Focus on airflow, comfort, and efficiency
Clean, respectful work practices
Options that fit your goals and budget
Schedule HVAC Service in Foster City, CA
Schedule HVAC Service in Foster City, CA
Need HVAC repair, installation, or maintenance in Foster City? We’re ready to help you stay comfortable with reliable service and straightforward communication.
Areas We Serve
Areas We Serve
• Bay Area • San Jose • Sunnyvale • Santa Clara • Mountain View • Milpitas • Palo Alto • Cupertino • Gilroy • Morgan Hill • Campbell • Saratoga • Los Gatos • San Mateo • Daly City • Redwood City • South San Francisco • San Bruno • Pacifica • Foster City • Menlo Park • Burlingame • San Carlos • Oakland • Fremont • Hayward • Berkeley • San Leandro • Livermore • Pleasanton • Alameda • Dublin • Union City
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