AC Repair San Mateo

Find the best AC Repair in San Mateo

Receive 3 FREE Air Conditioner Repair quotes for your project today! Compare profiles, reviews, accreditations, portfolio, etc... and choose the best offer.

Service Needed
City or Town
Find Pros
  • AirOstat, Inc. - AC Repair and Installation Los Angeles
    5
    #166, 16911 San Fernando Mission Blvd., Los Angeles, 91344, US

    At AirOstat, we pride ourselves on being honest, prompt, and professional. Our main priority is to provide our HVAC customers with honest work and an excellent experience. We always offer a high level of HVAC services in Los Angeles, treat customers with respect, and offer fair prices. Whether you need new HVAC equipment installation or repairs, you can rely on our highly-trained HVAC team to get the job done. From heating and air conditioning service to furnace and AC installation and replacement, AirOstat, Inc. is dedicated to delivering high-quality HVAC services in Los Angeles, and premium labor for your everyday comfort.

    Get Quote
  • Fuse HVAC & Appliance Repair
    4.9
    Napa, US

    Fuse HVAC & Appliance Repair Napa has over 13 years experience servicing Napa and surrounding area, it's no wonder we're the most sought-out company for all appliance repair parts and service. We provide same-day service, 7 days a week. We are sure to have someone in your area the moment you call in with an appliance repair need. Our repair-techs are highly trained and certified professionals who are knowledgeable and experienced in repairing all brands and models of all major appliances. We provide you with a 6-month In-Home warranty covering ALL parts changed out by Fuse HVAC & Appliance Repair Napa and our full labor for 6-month. Fuse HVAC & Appliance Repair Napa makes your money matter by giving you *Free service calls, upon repair. Despite the day, time, distance or price of gasoline… Rest assured, you won't be charged extra for our trip out. Now that's customer service! Don't hesitate calling in, we have customer service representatives standing by waiting to assist you. We pride ourselves on being the best HVAC & appliance repair service in Napa, California!

    Get Quote
  • Cloud Comfort HVAC Inc
    4.8
    1732 Border Ave, Torrance, 90501, US

    At Cloud Comfort HVAC, ensuring customer satisfaction is our top goal. Count on Us for Your Heating & Cooling Solutions! Expert Service, Exceptional Comfort Learn more. We are a 5-Star Company with 5-Star Reviews and 125 Reviews and Counting. Hundreds of 5-Star Reviews on Google Show Our Commitment to Customer Satisfaction.

    Get Quote
  • D. Webers Mechanical, Inc.- Heating & Cooling
    5
    Sacramento, US

    D. Weber’s Mechanical, Inc. is a family-owned and operated Sacramento Air Conditioning Repair business with over 40 years of experience in the field. Our priority is customer satisfaction. We specialize in commercial HVAC service, repair, and most importantly, preventative maintenance. We truly care about each of our customers and go above and beyond to clean up and maintain the areas in which we work. You can depend on us to handle any emergency, large or small. There are many HVAC companies in the area, but we always offer competitive rates while maintaining high standards in the quality of our work and professionalism. We want every customer we work for to feel that they chose the right company and continue to choose us! Areas of Service: We service Northern California as far north as Redding and as far south as Fresno, but mainly in the Sacramento Valley. D. Weber’s Mechanical, Inc. is the only Sacramento Air Conditioning Repair and Service company you will need for: Preventative Maintenance Installation & Removal of Air Filters System Repairs Tune-Ups Central Heating & Air Conditioning Ductless Systems New System Engineering & Installation Marijuana/Cannabis Grow Rooms & Moisture Management Commercial Refrigeration Programmable Thermostats (Including WIFI Enabled) Ice Machines (Maintain, Repair, Purchase) Cooling Towers Exhaust & Ventilation Walk-In Coolers and Freezers Purchasing and Delivering Commercial Refrigeration Sacramento Air Conditioning Repair

    Get Quote
  • Fuse HVAC & Appliance Repair
    5
    Carlsbad, US

    FUSE HVAC & Appliance Repair is a professional company that provides accurate, immediate, and professional help with all major appliance repair problems. With over 13 years of experience, we are the most sought-out company for all appliance repair parts and service. We provide same-day service, 7 days a week, and our repair-techs are highly trained and certified professionals who are knowledgeable and experienced in repairing all brands and models of all major appliances. We offer a 6-month In-Home warranty covering ALL parts changed out by Fuse HVAC & Appliance Repair Carlsbad and our full labor for 6-month. We also provide *Free service calls, upon repair, and pride ourselves on being the best HVAC & appliance repair service in Carlsbad, California!

    Get Quote
  • Airotech
    5
    Irvine, US

    AIROTECH is your trusted partner for all your heating and cooling needs. We provide expert air conditioning and furnace repair, maintenance, and new installation services. Our team of highly skilled technicians is dedicated to ensuring your comfort year-round. Whether you need a quick fix or a complete system upgrade, we've got you covered. Call us today at (949) 229-0888 to schedule your service. We look forward to hearing from you!

    Get Quote
  • AC & Heating Solutions
    4.9
    Antioch, US

    AC Heating Solutions is a company dedicated to providing top-notch heating, air conditioning, and refrigeration services to both residential and commercial clients in Contra Costa County. We pride ourselves on our team of highly qualified technicians who are experts in all makes and models of HVAC systems, refrigeration equipment, and more. Our commitment is to deliver exceptional service at competitive prices, ensuring customer satisfaction is our top priority. We understand the importance of prompt and reliable service, which is why we offer same-day and after-hours service options to meet your needs. Whether you require routine maintenance, repairs, or installations, our team is equipped to handle it all. We are fully licensed and insured, and our technicians stay up-to-date with the latest industry codes and regulations. We believe in building lasting relationships with our clients, and we strive to exceed your expectations with every interaction. Contact us today for a free estimate and experience the AC Heating Solutions difference!

    Get Quote
  • San Diego Mechanical Energy
    5
    7568 Trade St., San Diego, 92121, US

    San Diego Mechanical Energy is a California licensed HVAC contractor known for the excellence and experience we bring to every project. We design, install, and service all types of HVAC equipment including chillers, boilers, air handlers, fan array technology, cooling towers, pumps, packaged units, and variable frequency drives. Our passion is in delivering energy savings to help both reduce financial operating costs and also contribute to a more sustainable environment. The company name, San Diego Mechanical Energy, represents the quality, integrity and service that we deliver with every job. Our staff possesses industry-leading skills and use high-technology tools for design, fabrication, and energy analysis. We service and maintain any size or type of system including heat pump and gas/electric systems, and we have lots of experience working on packaged units as well as split systems. We also service and maintain server room HVAC units in mission critical facilities.

    Get Quote
  • Nancy's Plumbing
    4.9
    3025 Terrace View Avenue, Antioch, 94509, US

    Nancy's Plumbing is a family-owned business serving Antioch, CA and surrounding areas. We understand the importance of a well-functioning plumbing system in your home and strive to provide quick, reliable, and professional service. Our team of experienced plumbers is dedicated to addressing your plumbing needs with honesty, respect, and care. We prioritize your satisfaction and offer a range of services, including sewer, gas line, leak detection, faucet and sink installation and repair, water line installation, water heater installation, and water filtration systems. We are committed to providing efficient and lasting solutions for all your plumbing concerns.

    Get Quote
  • SunAir Heating, Cooling, & Electrical
    4.8
    1000 16th St, Sacramento, CA, 95811, US

    At SunAir Heating, Cooling & Electrical, we take pride in our commitment to quality work, excellent craftsmanship and doing business with the utmost integrity. Our experienced team of technicians are licensed, bonded and insured to provide our customers with the highest level of protection and peace of mind. We are not just the company you turn to for all of your HVAC needs, we’re your neighbor, your friend and we’ll treat you like family.

    Get Quote

Over 1,997+ HVAC Companies in our network

Our HVAC contractors operate in San Mateo & surroundings!

HVACCompaniesHub has curated and vetted the Best HVAC Contractors in San Mateo. Find the most reliable contractor today.

Frequently Asked Questions About AC Repair

Experiencing problems with your air conditioning? Concerned about rising energy bills due to inefficient cooling? Find answers to common questions about AC repair and connect with qualified HVAC technicians in USA.

What causes an AC unit to leak water inside?

Water leaking inside from your AC unit usually indicates a problem with the condensate drainage system. Here are some common causes:
  • Clogged condensate drain line:
  • Algae, dust, and debris can clog the drain, causing water to back up and overflow.
  • Cracked drain pan:
  • The pan collects condensation. A crack allows water to leak out.
  • Disconnected drain line:
  • The line may have become disconnected from the unit or the drain.
  • Frozen evaporator coil:
  • A coil frozen due to restricted airflow can lead to leaks.
  • Low refrigerant:
  • This can cause ice to form on the evaporator coil, which then drips.
Contact a qualified HVAC technician to diagnose the issue and perform the necessary repairs. .

What are the most common AC problems?

Air conditioners can experience a variety of issues, some more common than others. Here are some of the most frequent problems homeowners face:
  • Refrigerant Leaks: Low refrigerant levels reduce cooling capacity and can damage the compressor. Signs include warm air, ice on lines, and hissing sounds.
  • Frozen Evaporator Coil: Restricted airflow (often from a dirty air filter) can cause ice to form on the coil, hindering cooling.
  • Dirty Air Filters: A clogged filter restricts airflow, reducing efficiency and potentially causing other problems.
  • Faulty Capacitor: The capacitor helps start the motor. A bad capacitor can prevent the AC from turning on or cause intermittent operation.
  • Compressor Problems: The compressor is the heart of the system. Issues here are serious and often require professional repair or replacement. Look for unusual noises, reduced cooling, or frequent cycling.
  • Thermostat Malfunctions: An inaccurate or unresponsive thermostat can lead to inefficient cooling or prevent the system from turning on/off properly.
  • Clogged Condensate Drain Line: The drain line removes condensation. If blocked, it can cause water leaks or damage to the system.
If you notice any of these problems, consult a qualified HVAC technician for diagnosis and repair.

Why is my AC fan not spinning?

The cause of a malfunctioning AC fan needs professional diagnosis. Here are some possibilities:
  • Faulty capacitor:
  • The capacitor gives the motor a boost to start. A faulty capacitor can prevent the fan from starting.
  • Malfunctioning motor:
  • The fan motor itself might have failed.
  • Worn-out belt:
  • If your AC has a belt-driven fan, a worn or broken belt can prevent it from spinning.
  • Electrical issues:
  • Wiring problems or a tripped circuit breaker can cut off power to the fan.
  • Frozen unit:
  • Ice buildup can block the fan blades..
It's essential to contact a qualified HVAC technician to diagnose the issue and ensure safe and proper repair. .

How do I reset my AC unit?

Sometimes a simple reset can resolve minor AC issues. Here's how to reset most residential AC units:1. **Turn off the AC at the thermostat:** Set it to the 'off' position.2. **Turn off power at the breaker panel:** Locate the circuit breaker that controls your AC unit and switch it to the 'off' position.3. **Wait 5-10 minutes:** This allows the system to completely power down and reset any internal electronics.4. **Turn the breaker back on:** Flip the circuit breaker back to the 'on' position.5. **Turn on the AC at the thermostat:** Set the thermostat to your desired cooling temperature. If resetting doesn't work, contact a professional HVAC repair service. DIY electrical repairs on AC units are highly discouraged.

What causes an AC unit to leak water inside?

Water leaking inside from your AC unit usually indicates a problem with the condensate drainage system. Here are some common causes:
  • Clogged condensate drain line:
  • Algae, dust, and debris can clog the drain, causing water to back up and overflow.
  • Cracked drain pan:
  • The pan collects condensation. A crack allows water to leak out.
  • Disconnected drain line:
  • The line may have become disconnected from the unit or the drain.
  • Frozen evaporator coil:
  • A coil frozen due to restricted airflow can lead to leaks.
  • Low refrigerant:
  • This can cause ice to form on the evaporator coil, which then melts and leaks.
Contact a qualified HVAC technician to diagnose the issue and perform the necessary repairs. .

What are the most common AC problems?

Air conditioners can experience a variety of issues, some more common than others. Here are some of the most frequent problems homeowners face:
  • Refrigerant Leaks: Low refrigerant levels reduce cooling capacity and can damage the compressor. Signs include warm air, ice on lines, and hissing sounds.
  • Frozen Evaporator Coil: Restricted airflow (often from a dirty air filter) can cause ice to form on the coil, hindering cooling.
  • Dirty Air Filters: A clogged filter restricts airflow, reducing efficiency and potentially causing other problems.
  • Faulty Capacitor: The capacitor helps start the motor. A bad capacitor can prevent the AC from turning on or cause intermittent operation.
  • Compressor Problems: The compressor is the heart of the system. Issues here are serious and often require professional repair or replacement. Look for unusual noises, reduced cooling, or frequent cycling.
  • Thermostat Malfunctions: An inaccurate or unresponsive thermostat can lead to inefficient cooling or prevent the system from turning on/off properly.
  • Clogged Condensate Drain Line: The drain line removes condensation. If blocked, it can cause water leaks or damage to the system.
If you notice any of these problems, consult a qualified HVAC technician for diagnosis and repair.

Why is my AC fan not spinning?

The cause of a malfunctioning AC fan needs professional diagnosis. Here are some possibilities:
  • Faulty capacitor:
  • The capacitor gives the motor a boost to start. A faulty capacitor can prevent the fan from starting.
  • Malfunctioning motor:
  • The fan motor itself might have burned out or seized..
  • Worn-out belt:
  • If your AC has a belt-driven fan, a worn or broken belt can prevent it from spinning.
  • Electrical issues:
  • Wiring problems or a tripped circuit breaker can cut off power to the fan.
  • Frozen unit:
  • Ice buildup can block the fan blades..
Contact an AC repair service to fix a fan problem. Don't attempt electrical repairs yourself.

How do I reset my AC unit?

Resetting your system is a basic troubleshooting step. Here's how to reset most residential AC units:1. **Turn off the AC at the thermostat:** Set it to the 'off' position.2. **Turn off power at the breaker panel:** Locate the circuit breaker that controls your AC unit and switch it to the 'off' position.3. **Wait 5-10 minutes:** This allows the system to completely power down and reset any internal electronics.4. **Turn the breaker back on:** Flip the circuit breaker back to the 'on' position.5. **Turn on the AC at the thermostat:** Set the thermostat to your desired cooling temperature.If the problem persists, it's likely a more serious issue, and you should contact a qualified HVAC technician. Never attempt electrical repairs on your AC unit unless you are qualified to do so safely..