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Thermostat Installation & Replacement in Lansdale, PA

Woman standing near the thermostat on the wall. Smiling while adjusting it.

Thermostats are crucial for sustaining comfort in any home. At Donnelly’s Cooling, Heating & Plumbing, we offer professional thermostat installation and replacement to ensure your home is always at the perfect temperature. Whether you’re upgrading to a smart thermostat or need a simple replacement, our skilled technicians are here to help you take control of your home’s comfort.

Dealing with a faulty thermostat? Schedule thermostat replacement services in Landsdale by contacting us online today.

Expert Thermostat Installation for Optimal Home Comfort

A properly installed thermostat can make all the difference in your home’s energy efficiency and your family’s comfort. That’s because an improperly installed or malfunctioning thermostat can cause several issues for your HVAC systems.

At Donnelly’s Cooling, Heating & Plumbing, we provide expert thermostat installations. Having a professional handle your thermostat installation ensures the job is done right the first time so you can enjoy comfort without any complications.

Types of Thermostats We Install

We install various thermostats to suit your home and your lifestyle. These include:

  • Manual thermostats: Simple and reliable, manual thermostats let you adjust your home’s temperature by turning a dial or moving a lever. They’re easy to use and perfect for those who prefer straightforward control.
  • Programmable thermostats: These thermostats allow you to set heating and cooling schedules to match your daily routine. Programmable models are great for saving energy, as they can automatically lower or raise the temperature when you’re away from home.
  • Smart thermostats: Smart thermostats connect to Wi-Fi, allowing you to control your home’s temperature from your phone or voice-activated device. They also learn your preferences over time and make automatic adjustments to save energy and maintain comfort.

When to Consider Thermostat Replacement

If your thermostat isn’t performing well, it might be time to consider an upgrade. Here are some benefits you can enjoy from replacing your old thermostat:

Thermostat Repairs for Reliable Temperature Control

A faulty thermostat can make maintaining a comfortable home a real challenge. But a malfunctioning thermostat doesn’t always mean you need a new one. Whether your thermostat is unresponsive, displaying incorrect temperatures, or not communicating with your HVAC system, our team is here to diagnose and fix the issue with expert thermostat repairs.

A few signs that it’s time to schedule professional repairs include:

  • Inconsistent temperatures
  • Higher energy bills
  • System unresponsiveness
  • No heating or cooling
  • Incorrect temperature readings
  • A constantly running HVAC system

Why Choose Us for Thermostat Installation & Replacement?

When you need professional thermostat services, look no further than Donnelly’s Cooling, Heating & Plumbing. Our licensed and experienced technicians provide reliable thermostat installation, replacement, and repair to keep you comfortable — no matter the outdoor temperature.

As part of our commitment to full transparency, we offer free estimates and upfront pricing so you know what to expect with no surprises.

Contact us online today to schedule thermostat services in the Greater Philadelphia area.

Thermostat FAQs


If your thermostat isn’t responding, isn’t triggering the HVAC system, or if you notice inconsistent temperatures in your home, it might be time for a replacement. Older models can also be inefficient, leading to higher energy bills.

Smart thermostats offer remote access, so you can adjust your home’s temperature from anywhere using your phone. They also learn your habits and adjust automatically to save energy, making them a great choice for improved comfort and efficiency.

Thermostat installation typically takes about an hour. Our technicians will ensure everything is properly set up and tested to guarantee your system works smoothly.
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Our Reviews

See What Your Neighbors Are Saying

We were extremely satisfied with the service provided by Donnelly’s. From start to finish, they were extremely professional and kept us informed every step of the way. Our technician, Mike Wilson, was fantastic. He was very knowledgeable and courteous. We were very happy with the project…

Anthony M.

Anthony M.

Donnelly’s Heating, Cooling & Plumbing provided excellent service for our home. Domingo C. was very knowledgeable and answered all of my questions (and there were many!). We ended up with an issue, and he stayed until it could be resolved. Jake H. and his skilled team…

Jill C.

Jill C.

Can’t say enough about how great my water heater replacement experience was. Service tech, Joe was the best; Knowledgeable, professional, and kind - he did such a great job. I highly recommend contacting Donnelly’s for your plumbing needs.

Kristen T.

Kristen T.

All around good experience for the installation of a combi boiler. The sales process was good and they were willing to negotiate which was appreciated. I set up the install two weeks out at the time of the sale and they arrived on time today to…

Todd A.

Todd A.

Our whole experience with Donnelly's was spectacular. We really appreciated the honesty and clarity throughout the whole process. When they came out for a quote we felt like all of our questions were answered and their proposal gave us exactly what we needed at a very…

Racheal B.

Racheal B.

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What To Expect

Discover the Donnelly’s Difference

​Professional Services​

​We show up on time, keep things clean, and listen to what you need. We treat you and your home with the respect it deserves.

Service for All Brands

​We can work on all makes and models of HVAC and plumbing equipment.​

Trustworthy

​You can count on us to be honest and always do what we say. We communicate clearly, provide our guarantees & warranties in writing, and ensure you understand everything we're doing in your home.​

Experienced Technicians​​

We excel at solving problems with years of experience behind us. We look at today's challenges and future needs to create the best customized solutions.​

Licensed & Insured

​Our technicians are licensed, insured, and background-checked for your peace of mind.​

​Professional Services​

​We show up on time, keep things clean, and listen to what you need. We treat you and your home with the respect it deserves.

Service for All Brands

​We can work on all makes and models of HVAC and plumbing equipment.​

Trustworthy

​You can count on us to be honest and always do what we say. We communicate clearly, provide our guarantees & warranties in writing, and ensure you understand everything we're doing in your home.​

Experienced Technicians​​

We excel at solving problems with years of experience behind us. We look at today's challenges and future needs to create the best customized solutions.​

Licensed & Insured

​Our technicians are licensed, insured, and background-checked for your peace of mind.​