Heating Tune-Ups in the Central Valley

//Trusted HVAC Maintenance Expertise

Every home deserves reliable heating when the weather turns chilly. Sometimes that means upgrading or replacing your existing furnace.

Staying warm is important but so is staying efficient. Cencal Mechanical installs high-efficiency heating systems including Energy Star furnaces and electric heat pumps. You can save up to 40% on your monthly energy bills!

Our experts are on a mission to keep your family comfortable and your energy costs down!

Our Total Satisfaction Promise

Our Total Satisfaction Promise

We never consider our work a job well done until we have your stamp of approval! And we’ll always leave your home cleaner than we found it.

The Cencal Craftsmanship Guarantee

The Cencal Craftsmanship Guarantee

Enjoy peace of mind with a LIFETIME WARRANTY on selective parts and components. If anything goes wrong with your furnace service in the first year, we’ll fix it—for free!

No-Surprise Pricing

No-Surprise Pricing

Our specialists are experts when it comes to quoting repairs. If we find an issue with your heating system, you’ll be given a total price for a heating repair before we start the job. There’s never a payment surprise with Cencal.

Our Family, Your Neighbor

Our Family, Your Neighbor

Cencal Mechanical remains a family-owned and operated business with humble beginnings in Modesto, CA. We’re proud to have grown across the Central Valley, but our community values have never wavered.

In Modesto and throughout the Central Valley, our trucks are stocked and ready to help the communities we love. We’re the professional, reliable HVAC contractor who cares in California.

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//Energy Saving Tune-Ups From Cencal Mechanical

Want to save up to 12% on your monthly energy bills? Then schedule an annual furnace or heat pump tune-up!

Our specialists are experienced with all major furnace and heat pump brands and models. And we’re ready to go when you are. Scheduling a maintenance visit is easy and should be part of your healthy home comfort routine.

Open 7 Days a Week

Certified Technicians

Fully Stocked Trucks

In Modesto and throughout the Central Valley, our trucks are stocked and ready to help the communities we love. We’re the professional, reliable HVAC contractor who cares in California.

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The Cencal Total Package Tune-Up

Our HVAC maintenance technicians thoroughly inspect everything that helps your home heat most efficiently. Cencal Mechanical is experienced in optimizing central heating, furnaces, heat pumps, and ductless mini-split systems.

Our Heating Tune-Up Includes:

  • Gas & Electrical Connections Check
  • Blower Performance Tests
  • Parts Lubrication
  • Temperature Performance Diagnostics
  • Thermostat Control Calibration
  • Fan Switch & Belts Checks
  • Complete Safety Inspection

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//Heating System Maintenance FAQs

You can always contact our team with questions about air conditioning tune-ups, repairs, or installations. Here are some questions our customers often ask!

Do I Need to Replace My HVAC Filters?

Yes, air filters must be periodically replaced in central and mini-split cooling systems. Ideally, this should be done every 3 months. Dirty air filters slow down airflow and reduce the efficiency of your equipment.

If your air conditioning is not performing properly, checking for a dirty air filter is a good place to start.

What Does a Furnace or Heat Pump Tune-Up Do?

Just like you take your car for an oil change, your home heating system needs some TLC too! If you live in the Central Valley, your furnace or heat pump is likely working for several months a year. Taking care of this equipment will extend the life of your unit and increase efficiency.

Tune-ups and heating maintenance are also a great way to prevent major repairs or damage from occurring. Our specialists get a chance to evaluate your home heating system and make recommendations for preventative measures that will save money down the road.

Why Can’t I Get the Right Temperature in My Home?

If your heating system is producing warm air but you can’t seem to get the desired temperature, it could mean your thermostat is faulty. Try adjusting the temperature up and see if your system reacts. The temperature sensor could be malfunctioning, in which case you’ll want to call an HVAC service tech.

Upgrading to a smart thermostat is one way to improve the efficiency of your heating system.

When Is the Best Time for Heating Maintenance?

You want your home to be prepared for the colder months, so schedule a furnace or heat pump tune-up before the winter starts. When a technician inspects your heating system, they ensure everything is working properly and ready for the cold seasons.

A service professional can suggest any repairs or upgrades to avoid heating emergencies when the cold is brisk. So think about scheduling your Heating Tune-Up in the summer or early fall.


We specialize in delivering premium HVAC services to homeowners across the Central Valley.

When it comes to staying cool, keeping warm, and improving your indoor air quality, Cencal is your first call. Even if we didn’t install your air conditioner, don’t hesitate to call us!

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//Become a Cencal Gold Member & Save

The Cencal Gold Membership gives you peace of mind knowing that your home is protected all year round. Members enjoy bi-annual maintenance on their home comfort HVAC systems.

Join the most comprehensive Membership coverage in the industry. Members are insured against unexpected, costly repairs, and your home will never be without a functioning air conditioning system.

Enjoy the Cencal Gold Member Benefits

  • FREE Bi-Annual HVAC Tune-Up
  • 10% Off Parts for All Service Calls
  • NEVER Pay Diagnostic Fees
  • NEVER Pay for Overtime Labor
  • Front-of-the-Line Service for All Repairs & Maintenance
Become a Member Today
Memberships with Cencal Mechanical Heating & Air Inc.

//In Our Customers’ Own Words

“Cencal is awesome! Their office staff is always super friendly and upbeat, their technicians are always very professional and helpful! They do a great job on keeping my system running, and now I have ordered a new system through them that will be installed next week! Special kudos out to Kha who was here today and has been here before. He is always professional and on time and does a great job! He was super helpful in ordering my new system. I would love to have him come every time! I definitely recommend this business!”

Tracy M.

//We’d Love to Hear From You!

Our team is at the ready 7 days a week. So don’t hesitate to reach us for inquiries about AC, home heating, or anything else HVAC related.

Fill out the form, and one of our specialists will be in touch soon to get you on your way to cool, comfortable living.

Cencal Mechanical Heating & Air Inc. Service Area

//Get In Touch with Cencal Mechanical Heating & Air Inc.

You can find our headquarters in Modesto, CA, just east of the Golden State Hwy at Woodland Ave.

1254 Lone Palm Ave
Modesto, CA 95351