Restore Efficiency and Reliability to Your Heating System
At LJ Mechanical Heating & Cooling Inc., we are committed to offering high-quality furnace repair services to help maintain the longevity of your heating system. Our skilled technicians in Gilroy, California, and nearby areas are capable of addressing a wide range of issues, from minor tweaks to major part replacements, to guarantee each repair is comprehensive and successful. We use cutting-edge HVAC technologies to accurately and carefully diagnose and resolve problems. Moreover, we provide seasonal maintenance inspections to get your heating system ready for increased usage in colder seasons, minimizing the chances of unforeseen malfunctions.
With each repair, we also conduct carbon monoxide testing to ensure that your system is safe and operating properly. By selecting our services, you are making an investment in a proactive heating maintenance approach that ensures your home is safe, warm, and energy-efficient throughout the entire year.
Our Comprehensive Furnace Repair Services in Gilroy, California
Furnace Inspection Services
We initiate our furnace repair services by conducting a detailed examination of your heating system to uncover any potential issues. We carefully inspect every part, such as the blower motor, ignition system, and heat exchanger, to guarantee proper functionality. This proactive strategy assists us in identifying possible issues before they escalate into expensive repairs or system malfunctions.
Parts Replacement Services
If a certain component of your furnace is broken or deteriorated, we provide accurate replacement services for parts. Our technicians excel in finding and fitting top-notch replacement parts that are a perfect match for your furnace model.
Thermostat Calibration and Repair Services
A malfunctioning thermostat can cause uneven heating and lead to energy wastage. Our services include calibrating and fixing thermostats to maintain precise temperature control for your furnace. Our technicians are skilled at identifying and repairing problems with both conventional thermostats and high-tech smart thermostats.
Air Quality Enhancement Services
Your furnace is very important for making sure good indoor air quality. Our offerings consist of air filter cleaning and replacement, inspection and cleansing of the furnace's combustion chamber, and verification that your system is not dispersing dust, allergens, or pollutants in your residence. Engaging in these activities benefits the quality of air inside the building.
Blower Motor and Fan Repair Services
The blower motor and fan play a crucial role in distributing warm air throughout your home. If you observe strange sounds or a decrease in air flow, our experts can identify and fix any problems with these parts. Our services include thorough repairs for blower motors and fans to enhance your system's efficiency.
Schedule Your Furnace Repair Today
Contact LJ Mechanical Heating & Cooling Inc. in Gilroy, California, for the best furnace repair services customized to suit your home's individual requirements. If your furnace is making unusual sounds, not heating properly, or displaying signs of aging, our skilled technicians can quickly and efficiently identify and fix any problem. We take pride in making sure your furnace operates at its best, not only working properly but also being more reliable and energy efficient.
We bring comfortable living to every home.
FAQ's
Why is my furnace blowing cold air, and does that mean I need a repair?
A furnace blowing cold air can be caused by a number of issues — a dirty flame sensor, malfunctioning thermostat, clogged air filter, or even incorrect fan settings. It doesn’t always mean a major breakdown, but it does signal something’s wrong. Our technicians at LJ Mechanical Heating & Cooling Inc will perform a diagnostic check to pinpoint the exact issue. Sometimes it's a quick fix, but delaying service can lead to deeper mechanical damage, especially during colder months when the system is under stress.
What are the most common signs that my furnace needs repair?
If your furnace is making unusual noises (banging, rattling, or whistling), cycling on and off frequently, or failing to maintain a consistent temperature, it's time to call for service. Unexplained increases in energy bills are another red flag. Even minor issues can evolve into serious problems that shorten the lifespan of your unit. LJ Mechanical helps you catch and correct these signs early to prevent costly repairs or replacements.
How long does a typical furnace repair appointment take?
Most furnace repairs take between 1 to 3 hours, depending on the complexity of the issue. For example, replacing a flame sensor or ignitor is quicker than repairing a cracked heat exchanger or blower motor. At LJ Mechanical, we prioritize efficient diagnostics and come prepared with most common replacement parts to avoid multiple trips, minimizing your downtime without heat.
Should I repair or replace my furnace if it’s over 15 years old?
A furnace over 15 years old may be nearing the end of its efficiency and reliability. Frequent repairs, increased utility bills, or uneven heating are signs it may be more cost-effective to replace than repair. However, at LJ Mechanical, we don’t push replacements unless necessary. We assess the condition of your current system and provide honest recommendations based on performance, repair costs, and safety.
Can dirty air filters really cause furnace issues?
Yes — a clogged filter restricts airflow, causing the furnace to work harder and potentially overheat. This can lead to short cycling or even a system shutdown. Regular filter replacement (every 1–3 months) is one of the simplest ways to prevent breakdowns. Many furnace issues LJ Mechanical repairs stem from this overlooked maintenance step, which homeowners can easily manage themselves.
Is it safe to continue running my furnace if I notice an issue?
It depends on the problem. Some issues, like a slight rattle, may not pose immediate danger, but others — like a cracked heat exchanger or gas leak — can be hazardous. If you ever smell gas or hear unusual noises, shut down the furnace and call us immediately. At LJ Mechanical, safety is our top priority, and we’re equipped to respond to urgent situations in the Gilroy area promptly.
What causes short cycling and how can it be fixed?
Short cycling — when your furnace turns on and off too frequently — often results from an overheating system, bad thermostat, or improper furnace sizing. It not only wastes energy but stresses your equipment. Our technicians at LJ Mechanical assess both the mechanical and environmental causes, ensuring the fix addresses the root issue rather than just the symptom.
How can I prevent furnace problems during peak winter season?
Schedule annual maintenance in the fall, before heavy usage begins. During a tune-up, we clean critical components, check for gas leaks, ensure proper airflow, and calibrate the thermostat. Most emergency winter repairs stem from preventable issues that could have been caught during routine inspections. We also offer ongoing service plans for customers in Gilroy to stay ahead of problems affordably.
Is furnace repair covered by my home warranty or insurance?
Home warranties often cover furnace repairs, but you’ll need to check your specific policy. Homeowners insurance typically only covers furnace damage from external events like fire or flooding. At LJ Mechanical, we can provide the detailed documentation and diagnosis reports you may need to submit a claim, and we’re happy to work with warranty providers where possible.
How do you determine what’s wrong with a furnace?
Our diagnostic process includes a full system inspection, where we assess airflow, ignition, sensors, blower components, thermostat settings, and more. We use digital tools to detect performance anomalies and safety risks. This thorough approach allows LJ Mechanical to deliver accurate, trustworthy repair quotes with no surprises. We walk you through what’s going wrong and why, so you’re never left in the dark.