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AC Maintenance & Repair

Call Our Hotline: 833-710-9330
AC repairs in Modesto

Keeping your air conditioning system in peak condition is essential for year-round comfort in Modesto, CA. At DeHart Plumbing, Heating & Air, we offer dependable AC maintenance and repair services designed to extend your system's lifespan, improve energy efficiency, and prevent unexpected breakdowns.

  • 100% Satisfaction Guarantee
  • Industry-Leading 10-Year Parts and Labor Warranty
  • The Highest Levels of Honesty and Integrity

With roots in the community going back to 1946, DeHart Plumbing, Heating & Air continues to earn the trust of homeowners across Modesto by delivering expert service backed by integrity. Whether you're scheduling seasonal maintenance or need urgent AC repairs, our technicians are here to help—day or night.

Schedule your AC maintenance or repair today and enjoy dependable comfort with every visit.

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DeHart Plumbing, Heating & Air

Preventative AC Maintenance That Pays Off

Routine air conditioning maintenance is one of the best investments you can make in your home’s comfort system. At DeHart Plumbing, Heating & Air, our preventative maintenance services are designed to catch small issues before they turn into costly repairs and ensure that your system operates at peak performance.

Our Maintenance Services Include:

  • Full System Inspection: We evaluate every component of your AC system, from electrical connections to refrigerant levels.
  • Cleaning & Calibration: Our team cleans filters, coils, and other essential parts while calibrating the system for optimal airflow and efficiency.
  • Performance Testing: We test system output to ensure it’s cooling your home consistently and effectively.

Our NATE-certified technicians follow a detailed checklist to keep your system running smoothly. Regular tune-ups not only reduce the risk of breakdowns but also help lower your monthly utility bills.

Book your annual AC maintenance today and get ahead of the summer heat.

Fast, Effective AC Repairs When You Need Them Most

An AC breakdown during a Modesto summer is never convenient—but with DeHart Plumbing, Heating & Air, help is always just a call away. We offer fast, reliable AC repair services to get your cooling system back on track with minimal disruption.

Common AC Issues We Fix:

  • Warm Air Blowing: Could signal refrigerant leaks or compressor problems.
  • Strange Noises or Smells: May indicate loose parts, electrical issues, or mold buildup.
  • Frequent Cycling: Often a result of thermostat problems or clogged filters.

Our experts arrive fully equipped to diagnose and fix most problems on the spot. We never cut corners—only delivering long-lasting repairs that restore your comfort and peace of mind.

Need urgent repairs? Call our 24/7 emergency service and get your system working again today.

Why Homeowners in Modesto Choose DeHart Plumbing, Heating & Air

At DeHart Plumbing, Heating & Air, we do more than just fix AC systems—we deliver peace of mind. Our commitment to transparency, excellence, and community service sets us apart from the rest.

  • 24/7 Emergency Service: We’re here for you whenever your system stops working—day or night.
  • NATE-Certified Technicians: Our skilled professionals ensure quality service with every visit.
  • Serving Since 1946: With decades of experience, we understand what Modesto homes need to stay cool.
  • Above and Beyond Service: We don’t just meet expectations—we exceed them every time.

For reliable AC maintenance and repair in Modesto, trust the experts at DeHart Plumbing, Heating & Air Schedule your service today and feel the difference experience makes.

Related FAQs

What Are the Signs My AC Needs Repair?

Common signs your AC may need repair include warm air coming from the vents, weak airflow, unusual noises or odors, frequent cycling, or a sudden spike in your energy bills. If your system struggles to keep your home comfortable or runs longer than usual, it’s a good idea to have it checked. Catching issues early can help prevent more expensive repairs or a full system breakdown.

How Do I Schedule an Appointment with DeHart for AC Service?

Scheduling is easy! You can call us directly at (209) 531-9779 or . Whether you need service, maintenance, or a quote for a new system, our team is ready to help find a time that works for you.

What Types of Air Conditioning Systems Does DeHart Service?

We service all makes and models of central air conditioners, heat pumps, ductless mini-splits, and packaged HVAC systems. The only exception is window units, which we do not service due to equipment limitations. Whether your system is brand new or a bit older, our technicians have the training and experience to keep it running strong.

Why Is My AC Blowing Warm Air?

If your AC is blowing warm air, it could be due to a number of issues, like low refrigerant levels, a dirty air filter, a malfunctioning thermostat, or even a problem with the outdoor unit. In some cases, it might be something simple, but it could also indicate a more serious issue. Our technicians can quickly diagnose the problem and get your system back to blowing cool air fast.

How Much Does AC Repair Typically Cost?

The cost of AC repair can vary depending on the issue, but most common repairs range from $100 to $500. Minor fixes like replacing a capacitor or contactor tend to be on the lower end, while more complex problems like a failed compressor can be more. We always provide upfront pricing before any work begins, so there are no surprises and we’ll walk you through your options so you can make the best choice for your home and budget. Love Club members receive 20% off all repairs, and we also offer financing on any service or installation over $500 to help make unexpected repairs more manageable.

Can I Finance My AC Repair?

Yes, you can! DeHart offers financing for any AC repair over $500. Whether it's a sudden breakdown or a major component replacement, you don’t have to pay the full amount upfront. Applying is quick and easy, and our team is here to guide you through the options and help you choose a plan that works for you.

Is My AC Repair Covered by a Warranty?

Yes. At DeHart, we stand behind our work with a craftsmanship guarantee on all AC repairs so you can feel confident the job was done right.

Love Club members also receive a lifetime warranty on all repairs during continuous membership with no lapse, adding even more long-term value and protection.

If you’re considering a new system, we offer an industry-leading 10-year parts and labor warranty on qualifying replacements, one of the strongest warranties in the industry.

Does DeHart Charge for AC Repair Diagnostics?

Yes, we charge an $89 diagnostic fee for AC repairs, or just $49 for Love Club members. This fee covers sending a licensed, insured, and professionally trained HVAC technician to your home to inspect the system, identify the problem, and provide expert recommendations.

You’ll always receive upfront pricing and a thorough explanation before any work begins so there are no surprises. If you're interested in a system replacement, we do offer free estimates for all new air conditioning installations or full replacements.

Can I Try to Fix My AC Myself?

Trying to fix your AC yourself is not recommended. While it might be tempting to troubleshoot, today’s systems are complex, and even small missteps can lead to safety risks, further damage, or voiding the manufacturer’s warranty. For your safety and peace of mind, it’s always best to call a licensed professional. Our technicians are trained to diagnose and repair issues properly, keeping your system protected and running reliably.

Does DeHart Sell HVAC Parts to the Public?

No, we do not sell HVAC parts directly to the public. Due to licensing requirements and manufacturer warranties, parts must be installed by a licensed professional to ensure safety, proper function, and to maintain warranty coverage. If you’re having an issue, our team is happy to diagnose the problem and provide the right solution.

Does DeHart Install Owner-Supplied Parts?

In general, we do not install customer-supplied parts, as we cannot guarantee their quality, compatibility, or manufacturer support. The only exceptions are thermostats and filters, which we’re happy to install if they meet the system’s requirements.

This policy helps us ensure safe, reliable service and protects the long-term performance of your HVAC system.

How Quickly Can a Technician Get Here for AC Repairs?

We do our best to get a technician to your home as quickly as possible, typically within 48 hours or sooner. During peak seasons, availability can vary, but we prioritize urgent issues and always aim to accommodate your schedule. Our team will keep you informed every step of the way so you know exactly when to expect us.

Why Does My AC Keep Turning On and Off?

If your AC keeps turning on and off frequently (also known as short cycling), it could be caused by something as simple as a dirty air filter or thermostat issue, or it may point to a more serious problem like an oversized system, low refrigerant, or electrical issues. Short cycling puts extra strain on your system and can lead to higher energy bills or breakdowns, so it’s best to have it inspected by a professional. Our technicians can diagnose the cause and get your system running smoothly again.

Is It Better to Repair or Replace My AC?

It depends on the age of your system, the cost of the repair, and how often issues are happening. If your AC is over 10–15 years old, requires frequent repairs, or the repair cost is close to 50% of the price of a new system, replacement is often the more cost-effective option. Our team will assess your system and give you honest, expert guidance. Whether it makes more sense to repair or replace, we’ll help you make the best decision for your comfort and budget.

What If My AC Stops Working Outside of Business Hours?

No need to wait—we offer 24/7 emergency service for situations just like this. If your AC stops working outside of regular business hours, give us a call and our on-call team will respond promptly to get your system back up and running. Your comfort and safety are our priority, day or night.

How Can I Prevent Future AC Breakdowns?

Just like your car needs regular oil changes to run smoothly, your AC system needs routine maintenance to perform at its best. The best way to prevent future breakdowns is by keeping your system clean, properly tuned, and professionally inspected at least once a year. Our Love Club Maintenance Program makes it easy—we handle all the scheduling, send you reminders, and make sure your system gets the care it needs before small issues turn into costly repairs.

How Often Should I Schedule AC Maintenance?

Your air conditioner should be professionally maintained at least once a year, ideally in the spring before peak cooling season begins. Regular maintenance keeps your system running efficiently, helps catch small issues early, and extends the life of your equipment. With our Love Club Maintenance Program, we make it easy by handling the scheduling and sending you reminders when it’s time for a tune-up.

What Are the Benefits of Regular AC Maintenance?

Routine maintenance helps your AC run more efficiently, which can lower your energy bills and reduce the risk of unexpected breakdowns. It also helps extend the life of your system, keeps your home more comfortable, and protects your manufacturer warranty. Regular tune-ups with DeHart mean peace of mind, fewer surprises, and long-term savings, especially when you’re a member of our Love Club.

What Should I Do While I Wait for a Technician to Arrive?

While you wait for your technician to arrive, it’s best to turn off your system at the thermostat, especially if it’s not working at all, to prevent any further strain. For safety reasons, avoid opening up equipment or attempting any repairs yourself. Rest assured, our technician will arrive promptly, assess the issue, and walk you through the next steps to get your system running smoothly again.

Why Choose DeHart?

For nearly 80 years, DeHart has been the trusted name in home comfort across our community. We’re a family-owned company built on integrity, expert service, and a genuine commitment to doing right by our customers. From HVAC to plumbing, repairs to replacements, we bring decades of experience, highly trained technicians, and a 100% satisfaction guarantee to every home we serve. We stand behind our work with an industry-leading 10-year parts and labor warranty, a craftsmanship guarantee, and flexible financing options to make comfort more accessible when you need it most. When you choose DeHart, you’re choosing quality, reliability, and a team that truly cares.

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Locations We Serve

California

Serving Modesto, CA and the Central Valley

209-523-4578

311 Bitritto Way,
Modesto, CA 95356

Nevada

Serving the Reno-Sparks Area

775-358-6187

1842 Hymer Ave,
Sparks, NV 89431