Furnace Installations & Service in the Central Valley

//What Makes Cencal the Furnace Experts?

Cencal Mechanical services furnaces old and new across Modesto and the Central Valley. We know what to expect with aging furnaces and how to keep your equipment running longer and better.

We specialize in high-efficiency furnace installations for homeowners that want to lower their monthly energy bills by up to 12%! We’ll make sure to help you choose the perfect size furnace for your home and our furnace replacements are always guaranteed.

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 repair 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 your repair. You’ll be given a total price for a completed furnace service before we start the job. There’s never a payment surprise when you choose 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.

//The Cencal Mechanical Legacy

Why do we continue to grow and help more homeowners across California? Because we’re obsessed with HVAC services and care about every customer.

Cencal Mechanical has installed thousands of furnaces, heat pumps, and mini-split heating systems. Our HVAC specialists are trained on all brands and manufacturers, so you can always call Cencal with confidence!

Open 7 Days a Week

Fully Stocked Trucks

Certified Technicians

//Furnace Services FAQs

You can always contact our team with questions about furnace installations, upgrades, or replacements. Here are some questions our customers often ask!

What is a High-Efficiency Furnace?

High-efficiency furnaces save energy by operating with less heat waste than conventional furnaces. New heating technology and components make this possible. Annual Fuel Utilization Efficiency (AFUE) is a measurement of how much heat a furnace can create from the fuel being consumed.

High-efficiency furnaces have an AFUE of at least 90% and sometimes as high as 98.5%! Traditional furnaces can have an AFUE rating as low as 80%. Because of this difference in fuel-burning efficiency, a new high-efficiency furnace can save you over 12% on your energy bill!

Why Isn’t My Furnace Working?

There are several reasons a furnace may not be producing warm air. Try these troubleshooting tips that might help solve the problem:

  • Make sure your thermostat is set to the right temperature and on the “HEAT” setting.
  • See if your furnace air filter is clean. These should be replaced every 3 months. A clogged filter will prevent airflow.
  • Is the fresh air intake clear? This will be on the outside of your home. Make sure there is no debris, ice, or snow blocking the intake area.
  • If you have an older furnace, check the pilot light. Make sure it is in the ON position and lit.

Your furnace is a complicated appliance that requires expert knowledge to repair. If problems persist after checking the items above, call us to diagnose the problem. You can call Cencal Mechanical 7 days a week.

How Long Will a New Furnace Last?

Your new furnace will always benefit from proper care and routine tune-ups and maintenance. Typically, you can expect a new furnace to operate normally for at least 10 years, and over 15 years for well-maintained units.

Our furnace installations are completed with the utmost attention to detail and designed to maximize each model’s lifespan. Dealing with heating repairs swiftly as your unit reaches the decade mark is another way to help your heating system last longer.

How Long Does a Furnace Installation Take?

The size and spacing of your furnace or utility room will have an impact on the duration of your install. Ease of access to the install location and the furnace model you’ve selected will also affect the installation timeline.

Cencal Mechanical furnace diagnostic experts do their absolute best to give you an accurate quote on expected installation timing. All that being said, many new furnace installs can be completed within one day. But we’ll always communicate expectations during our first visit to your home.

//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 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



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 furnace, don’t hesitate to call us!

Contact Us

//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.

Cencal Mechanical is ready to help you get more out of your home heating with a high-efficiency furnace installation.

call us now!

//In Our Customers’ Own Words

“Cencal has serviced our HVAC for several years—technicians are very polite and knowledgeable, arrive on time and always clean up.  Recently we had to replace our upstairs unit — the owner took time to discuss options and provide recommendations.  Cencal then installed the unit professionally, efficiently & at a fair price, took care of all of the paperwork, including filing the utility rebate, and went out of their way to make us feel like a valued customer.  Highly recommend!”

Jenny G.