Thermostats

Thermostat Installation & Replacement in San Diego, CA

Reliable Thermostat Services for an Efficient and Cozy Home

If there’s one thing we San Diegans know, it’s how quickly our weather can flip the script. One day it’s warm and breezy, the next we’re digging out sweaters in the morning and kicking on the A/C by noon. That’s why having the right thermostat isn’t just a nice-to-have—it’s a game-changer.

At Mauzy, we’ve been keeping San Diego homes comfortable for over 50 years, and we’ve learned that temperature control starts with the right thermostat—and the right team to install it.

man controlling temperature on a nest thermostat

Why the Right Thermostat Really Matters

A thermostat may be a small box on your wall, but it’s the brain behind your whole HVAC system. It decides when your heating or cooling turns on, how long it runs, and whether you’re wasting money or staying efficient.

Whether you’re swapping out an outdated unit or getting a smart thermostat dialed in, we make sure your system works smarter—not harder. It’s not just about temperature. It’s about control, energy savings, and making your home feel just right every single day.

Our Thermostat Installation Services: What to Expect

When you call Mauzy, you’re not just getting a thermostat installer—you’re getting a team who treats your home like it’s our own. Here’s how we make the whole process seamless:

1. Let’s Talk First

We always start with a conversation. What’s going on in your home? Are you tired of fiddling with buttons? Want to control everything from your phone? Or maybe you’re curious about zoned heating and cooling? We’ll walk through your needs and make tailored recommendations.

2. Choosing the Right Thermostat

We don’t believe in one-size-fits-all. From basic digital thermostats to sleek, app-controlled smart ones, we’ll help you pick the model that makes sense for your home, your lifestyle, and your budget.

3. Professional Installation

Our certified techs take care of everything—wiring, setup, and configuration. We’ll even make sure your new thermostat is synced perfectly with your HVAC system.

4. A Quick Walkthrough

Before we leave, we’ll show you how it all works. Whether that means helping you set schedules, showing you how to use the app, or just explaining what those buttons do, we’re here to help.

5. Long-Term Support

Got questions later? Need a hand troubleshooting something? You can count on us. We’re a family business, and our relationship with you doesn’t stop at installation day.

Thermostat Options: Which One’s Right for You?

Not sure where to start? Here’s a quick rundown of what we offer—and what might work best in your San Diego home.

Smart Thermostats

Control your home’s temperature from anywhere with your smartphone. Smart thermostats learn your habits, adjust automatically, and can save serious cash on energy bills. Plus, many models integrate with Alexa, Google Home, and other smart devices.

Best for: tech-savvy homeowners, frequent travelers, energy savers.

Programmable Thermostats

These thermostats let you set heating and cooling schedules based on your daily routine. No more turning the heat off before work or coming home to a sauna.

Best for: folks with regular schedules, energy-conscious households.

Basic Digital Thermostats

Simple, reliable, and easy to use. You get accurate temperature control without the bells and whistles.

Best for: homeowners who want a no-fuss, budget-friendly option.

Zoned Thermostats

Have rooms that are always hotter or colder than the rest? Zoned thermostats give you individual control in different parts of your house.

Best for: larger homes, multistory homes, or families with different temperature preferences.

Common Thermostat Problems (And How We Fix Them)

Living in San Diego means we put our HVAC systems to good use. And sometimes, your thermostat can start to misbehave. Here are a few red flags:

  • Wild temperature swings: Your home doesn’t match the setting? That’s a signal.
  • Thermostat won’t turn on: Could be wiring, batteries, or the unit itself.
  • Short cycling: If your system keeps turning on and off too quickly, that’s a problem.
  • Losing settings: A clear sign it’s time for a replacement—or at least a fresh set of batteries.

When you call Mauzy, we’ll troubleshoot the issue and give you an honest answer—whether that means a quick fix or a full replacement.

Thermostats FAQ

  • Should I DIY My Thermostat Install?

    Should I DIY My Thermostat Install?

    Honestly? If you’re swapping a basic thermostat with another basic model—and you’re comfortable working with electrical wiring—it can be a doable weekend project.

    But… if you’re installing a smart thermostat, running new wires, or integrating with a more complex HVAC system, we strongly recommend calling in the pros. Improper installation can lead to system malfunctions, higher energy bills, or even safety hazards.

    With Mauzy, you’re getting licensed professionals who’ve done this a thousand times—and we’ll make sure it’s done right the first time.

     

  • How Much Does It Cost?

    Prices vary based on the thermostat and the installation complexity, but here’s a ballpark:

    • Basic digital thermostats: $50–$100 (plus install)
    • Programmable models: $100–$200
    • Smart thermostats: $200–$400+
    • Installation: Usually between $100–$300

    Want a more accurate quote? Just give us a call. We’ll walk you through your options and find something that works for your budget.

  • When It’s Time for an Upgrade?

    Wondering if it’s time to swap out your old thermostat? Here are a few signs:

    • It’s more than 10 years old
    • Your energy bills are creeping up
    • You’re constantly adjusting it
    • It doesn’t respond or loses programming
    • You want features like Wi-Fi control or remote access

    Trust us—upgrading your thermostat can make a bigger difference than you think.


Why San Diego Trusts Mauzy

We’re not some national chain. We’re a local, family-owned company that’s been serving San Diego for over five decades. We’ve seen the technology evolve, and we’ve evolved with it—without ever losing sight of what matters most: our customers.

When you choose Mauzy, you’re getting more than installation. You’re getting legacy, quality, and the kind of customer care that only comes from people who live where you live.

Ready for a Smarter, More Comfortable Home?

Let’s talk thermostats. Whether you want to schedule a visit, get a quote, or just ask a few questions—we’re here for you. Call us today, and let’s make your home feel just right, every day of the year.

Call us today at (619) 273-5851 to schedule an appointment!


Reviews

Here’s What Others Are Saying About Us

Carlos and Chandler were SUPERB installers! We got a very effective AC and Heating system for far less than I expected. We felt the difference right away as soon as we turned on the air conditioning unit. As important, Mauzy configured the system to optimize efficiency. I highly recommend you get a quote from this company if you’re in need of replacing your old equipment.
David Oates
David Oates
22:36 20 Jul 24
Update 2: my trust is restored. Had a little leakage in my box that connects to the fan and Luis went up in the attic and got it all sealed. Luis was very polite, professional, and genuinely happy. His positive attitude was very contagious and made my experience top notch. Also, I am happy to report that Mauzy stood behind their workmanship and covered all repairs under warranty. So so refreshing to have any company stand behind their workmanship. I have been with Mauzy since 2020 and will continue to be their customer. I would recommend Christian, Kylie, or Luis as your tech as well as recommend anyone out there to use Mauzy.Update: My trust is returning to Mauzy. Christian and Kylin came out to repair the repair and get my A/C up and running before the heat returns. Christian and Kyle were very professional, explain everything before proceeding, and let me know that the work would be covered under warrantyI have lost trust in Mauzy, Mauzy doesn’t stand behind their own work and what good is a warranty if you don’t stand behind it (This is a long one so sit tight). Where it all began: March 2020 I purchased a $23K A/C heating system from Mauzy. I was super happy with the install and I still love my system. I faithfully have used Mauzy service for my HVAC system every year since the install. I went with Mauzy bc they claim to stand behind their workmanship for the lifetime of the system (See Mauzy’s Attachment stating it also on their web page). Where the exchange box hooks up to the fan/heater a breach occurred between the box and the fan (service guy found it during my scheduled service in May 2024). It cost me approx $450.00 to have that breach fixed. Not sure why I had to pay if Mauzy offers a lifetime warranty on their workmanship, right? Matt Mauzy, feel free to explain this to me(see Mauzy’s warranty claim attached). I am open minded and perhaps my LA unified school education failed me. I got into it with one of Mauzy’s techs during the 2023 service for an issue with their workmanship. So to keep the peace, I didn’t argue with the charge in May and paid the $450 to have Mauzy repair their workmanship. Sunday 14 July, the repair Mauzy charged me for in May, didn’t hold up. I can’t use my heating or A/C bc it just dumps out in my attic. So Sunday I called the service line and the lady assured me there was no issue and scheduled a service call for the following Monday (15 July) no specified time. So this morning I made sure I was ready by 7am in case a technician showed up early. Around 9:15 I decided to call to see if I could get a better timeline from Mauzy only to find out that I don’t have an appointment yet. Come on Mauzy! why would your service desk make me believe I have an appointment when I don’t? Right? I would not have been so disgruntled if the service desk had told me someone would call me Monday morning to schedule. Matt Mauzy, you need to fix this. The soonest Mauzy can come out to fix their shoddy workmanship is sometime Thursday (maybe). I pray that this weeks heat wave is not too severe (this leads up to a whole other reason I need to get my A/C fixed). I will be thinking of you Matt Mauzy while you sit in your A/C house. Matt, Maybe you could come out from behind your desk and help your service department. I happen to be a tradesman and I have never left a customer in need hanging, especially if it was my fault. Just saying!Alex from Mauzy came out to conduct our annual service for our HVAC system. Good thing bc in of the seams in the unit had a hole and I was heating and cooling my attic. Super glad I have the inspection conducted every year. Alex was able to get the breach fixed and now the universe is rotating in harmony once again. BTW, I have been using Mauzy for the last 5 years (Mauzy also installed my HVAC) and I couldn’t be more satisfied. Mauzy truly does a good job and stands behind their work. Thank you Mauzy!
John Knight
John Knight
20:59 20 Jul 24
I am really happy with the customer service at Mauzy. Not only did they get me in promptly to replace my HVAC, they also beat the quotes of the other companies I contacted. Matt, Mario and Kenneth were really great explaining the process and getting the job done. They were respectful of my home and made sure my floors didn’t get dirty and cleaned up all the debris from the install. They made sure the unit was fully functional, testing temperatures and explain how to operate the system. I highly recommend Mauzy.
Steven Scharer
Steven Scharer
03:43 20 Jul 24
Kenneth and Mario are brothers! They were very respectful, happy and worked harder than I have ever seen anyone work. I had a pool delivered and on their break they offered to carry it to the backyard for me, and they helped get the last piece of the frame locked in as I was not strong enough to do it. They were so quiet I forgot they were in my attic. They were truly amazing! They cleaned up everything, it was like they were never here. I highly recommend Kenneth and Mario from Mauzy heating air and solar. Great job and thank you!!!
Melody Heller
Melody Heller
00:45 15 Jul 24
Michael at Mauzy worked very hard for two days to diagnose why our AC isn’t working. He had help from Jared the second day. A couple of burnt parts were replaced but it was determined an electrician was needed before they could complete their job. I did not meet Jared but Michael was professional, diligent, thorough and tidy and a pleasure to work with. I appreciated the detailed report afterwards. I am waiting for an updated invoice that details the discount I am due for signing up for their service plan. An electrician has been out and done his work. I’m waiting to hear about a follow up appointment to finish the AC issue. If I can get back to this review, I will update it when the service is complete. I’m new to Mauzy and so far am impressed.
MaryBeth Chruden
MaryBeth Chruden
15:04 14 Jul 24

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