Cencal Mechanical Team

Responsive HVAC Repair & Replacement in Modesto, CA & The Central Valley

Getting You Back To Comfort

Experience why your neighbors in Modesto, CA & The Central Valley call Cencal Mechanical Heating & Air Inc. for their HVAC needs

I don’t think I’ve ever met a staff that is as sincerely nice and helpful as the office staff and technicians at Cen-Cal Mechanical (HVAC). I have already recommended them to others.

Amber N. via Facebook

Excellent and professional team. Office folks are very respectful and help get things moving. Field techs then get it done efficiently and with pride in their workmanship!

Mike & Karen B. via NiceJob

I’ve been working with CenCal for several years. They installed my new A/C & heater in 2014. All of the staff is great to work with! Friendly, professional & reliable!

Donne O'B. via Google
Read more reviews

Your Reliable Modesto HVAC Company

Is your AC or heating system no longer working as it should be? Is the temperature in your home not where you want it to be? If you have answered yes to any of these questions, we can help!

Cencal Mechanical Heating & Air Inc is your trusted HVAC repair and replacement company here in Modesto, CA. Our team of responsive, certified technicians will get out to you as soon as possible to assess your HVAC problem, and get you back up and running again in no time.

Responsive & Reliable Service

Certified & Experienced Technicians

Locally Owned Family Business

Residential HVAC Services in Modesto, CA

Air Conditioning

Air Conditioning is essential living in beautiful California. If your AC unit is in need of repair, service or if you are looking for a brand new installation — we can help.

AC repair in Modesto, CA

AC Repair

If your AC unit is on the brink, our team will come out and assess the situation. We provide prompt, skilled and affordable repairs that eliminate discomfort and disruption caused by a malfunctioning air conditioner. Rest assured, we take good care of your property and equipment, causing no damage, leaving no mess behind, and optimizing system performance for long-term dependability.

Cencal Mechanical Heating & Air employee servicing HVAC unit

AC Service

For all makes, models and ages of cooling equipment, regular upkeep is absolutely essential to ensure that your unit runs efficiently. With seasonal inspection, you save time and money, avoid damage to your property, and enjoy a healthier, cleaner and cooler home. And when Cencal Mechanical handles your air conditioning service, there are no surprises.

Technician showing customer new AC installation

AC Installation

Is your cooling system more than ten years old? Are you paying frequent repair bills and high monthly costs? Don’t wait for your system to shut down on you. Our licensed and experienced AC technicians will provide an accurate diagnosis of your equipment, offer knowledgeable recommendations and guide you through every stage of installation. We’ll improve the health of your home, while significantly trimming the cost of operation and ownership.


Living in beautiful California, it can still get a little chilly and you still need a working, efficient heating system to keep you and your family warm at home. Whether you are looking for heating repair, replacement, service or installation, our team can help.

Technician repairing heater

Heating Repair

There’s never a reason to shiver and suffer from a malfunctioning heating system until regular business hours on Monday morning. We work on all major manufacturers, models and styles of heating equipment, delivering the right solution to any problem.

Cencal Mechanical technician servicing a HVAC unit

Heating Service

At Cencal Mechanical, we highly recommend having all makes, models, styles and ages of heating equipment professionally inspected every fall, prior to the demands of winter. We offer flexible appointments, show up right on time and cause no damage or disruption to your home. Our licensed technicians are dressed professionally, in uniform, provide helpful information and tips, and are prepared to address any concerns in a single service call.

Family going through heating installation with technician

Heating Installation

If your unit is so outdated that you are too scared of the cost to run the heater, or if the cost of replacing the worn part is too excessive, replacement becomes the best option. You can trust us to walk you through every step and give you the proper information needed. We take the extra time and effort to evaluate what your new system needs to be, to keep you comfortable all year round.

Exceptional Experiences Created For You.

I would like to have this experience!
We have our bi-yearly HVAC unit serviced by Cencal. They do an excellent job are very clean and have a great attitude. The best part of the service we love is that if something goes out, day or night, weekend or holiday, they come out and fix it NO CHARGE. I call that pretty good insurance.
David T. via Google
Read more reviews

Ductless Air Conditioning & Heating

When you need to improve the comfort in a small room or area, ductless mini and multi split systems allow you to maintain the temperature. A single outdoor unit supports one or more indoor units, which are linked by a conduit through a small hole in the outside wall. The hole is sealed to prevent energy waste and hidden by the indoor unit. A variety of line lengths allow flexibility in location, ensuring a viable option for every room in the house. Cencal Mechanical answers your unique challenges with ideal comfort.

Eliminating the potential 25% energy waste of ductwork by transporting energy through insulated lines, a ductless system prevents 95% of energy losses.

Energy Efficiency

Cost Savings

Inverter technology allows modern ductless equipment to automatically adapt the speed to match the changing demand of the home, conserving energy and keeping costs at a bare minimum.

Non-Invasive Installation

With little more than a 3 inch hole in an outside wall to connect the indoor and outdoor units, there’s no messy, intrusive and lengthy renovation project.

Indoor Air Quality

Featuring multi-stage filtration, modern ductless systems effectively trap contaminants and other airborne particulates, manage humidity in the summer, and don’t overly dry air in the winter.


Rather than maintaining the whole house at one temperature, ductless systems target each room individually, allowing personalized comfort and significant energy savings.

Environmentally Friendly

Using R410A refrigerant, which is well-regarded for its zero ozone depletion potential, ductless units protect our environment.

Ask Us About Our Programmable Thermostats With Wi-Fi®

Gentleman working programmable thermostat

Cencal Mechanical offers the latest technology to help you take control of your home’s comfort, even on the go. With a Wi-Fi® thermostat, you can manage your heating and cooling system almost anywhere, using a compatible smartphone or tablet. Features on most models include remote access, humidity control and zoning compatibility.

As specialists of Lennox heating and cooling products, we will provide expert installation of your new thermostat. We will work with you to find the right solution for your home. Contact us today to schedule an appointment.

* Wi-Fi® is a registered trademark of the Wi-Fi Alliance Corporation.

More Time For Comfort Means More time For Memories.

Enjoy a happy, comfortable home with a working HVAC unit.

Help my family to be comfortableNo, I am not ready yet, please give me more information.

HVAC Maintenance Services in Modesto, CA

Extend The Life Of Your HVAC System

Gold Membership Plan

Our Gold Membership HVAC Maintenance Plan will extend the life of your heating and cooling equipment with bi-annual maintenance. Our certified technicians will ensure your equipment is safe and in good working condition. A clean and efficient heating and cooling system costs you less to operate.

As a Gold Plan Member, you will receive comprehensive maintenance designed to save you money on energy as well as avert major repairs. Each bi-annual visit includes servicing your furnace or air conditioner, cleaning and inspection of all major components, and a safety check.

What does my membership include?

Priority service response
NEVER pay a diagnostic fee while membership is valid and NEVER any overtime charges
10% off parts and labor on all service calls pertaining to your membership
Gold Members reward specials
Great savings throughout the years

Financing Options For Your HVAC System

Beyond the purchase of your home and automobile, your heating and cooling system could be one the largest investments you’ll make. Today’s home comfort systems are more energy efficient than ever and with the proper system and installation, you could see considerable savings over the lifetime of the system which also can help offset your initial investment.

Financing provides you with flexible programs and payment options for the home comfort solution that suits and satisfies your entire family’s heating, cooling and indoor air quality needs.

Contact us today about your financing options.

Taking Care Of You & Your Comfort

Let's get started
We recently used Cencal to install a new unit and ducting in our office. They handled the job well, were professional, always on time, and communicated well throughout the whole project. The job got done without us needing to be involved besides letting them in the door. Thank you Jason, Susan, and the rest of the team for taking such good care of us.
Andrew M. via Google
Read more reviews

Commercial HVAC Services in Modesto, CA

For all of your commercial heating, ventilation and air conditioning requirements, Cencal Mechanical provides a full range of repair and maintenance services. We provide replacements, service and maintenance for your commercial heating and AC units so your employees and customers can feel comfortable in your workplace.

Commercial HVAC systems

We handle design / installation, replacement, seasonal upkeep and prompt repair of vital equipment. Utilizing state-of-the-art technology, proven strategies and industry-leading products, we achieve superior efficiency, safety, air quality and overall comfort. For every application, from single-room offices to school buildings and strip malls, we ensure smooth operating heating and cooling equipment.

Enjoy Comfort in the workplace.

Create a pleasant environment for your staff & customers with working HVAC units.

Create a comfortable workplaceI am not ready yet, please give me more information.

Wine Cellars

Cencal Mechanical has been crafting beautiful, custom wine cellars, wine closets and wine walls for over 10 years. Our team of experienced builders knows the effects of temperature and humidity, and the importance they play on a great wine. Each custom build is meticulously planned and executed to ensure that the new cellar will correctly store and age your collection.

Wine cellar installation in Modesto, CA

Our President, Jason Stevens, works closely with you to ensure the proper design of your cabinet or wine room. We work with you every step of the way to earn your complete satisfaction. We want you to enjoy your new wine cellar, and all of the rewarding benefits, for many years to come.

Professional all the way around. It’s been the best experience. Everyone is friendly and helpful. I couldn’t be more impressed
Kelsey P. via Facebook
Read more reviews

Our Story

Your Local HVAC Company

The team of Cencal Mechanical.

Cencal Mechanical is a full-service local, family-owned HVAC company specializing in residential and commercial heating, ventilation, and air conditioning services. We provide our customers with guaranteed heating and cooling system repairs and superior HVAC equipment replacement in the Central Valley. Our service technicians are experienced in repairing and replacing all brands of heating and cooling systems.