How Much Does Thermostat Installation or Replacement Cost?

Typical Range:

$113 - $255

Find out how much your project will cost.

Cost data is based on actual project costs as reported by 2,113 HomeAdvisor members. Embed this data

How We Get This Data

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  • Homeowners use HomeAdvisor to find pros for home projects.
  • When their projects are done, they fill out a short cost survey.
  • We compile the data and report costs back to you.

Updated October 18, 2022

Reviewed by Salvatore Cutrona, Licensed Master Electrician.

Written by HomeAdvisor.

The average thermostat replacement cost runs $176, or between $113 and $255. The cost to install thermostats runs slightly higher since it may require running wires and determining placement. Thermostat prices range from $15 to $500 or more, depending on the type and features. A licensed electrician can typically set one up in fewer than two hours at around $65 to $100 per hour.

It's possible to save money by self-installing or replacing your home, apartment, or business thermostat, but you'll need basic electrical knowledge. Potential consequences of improper installation include:

  • Electric shock

  • Tripping a circuit breaker

  • Damaging the thermostat unit

  • Damaging the AC or furnace

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National Average $176
Typical Range $113 - $255
Low End - High End $65 - $452

Cost data is based on actual project costs as reported by 2,113 HomeAdvisor members.

Thermostat Prices by Type

How much is a thermostat? Gone are the days when your only choice for a new thermostat was a metal box with a little wheel you turned manually to change the temperature. Selecting the best smart thermostat for your home will depend on your preferences. 

Today, we have many more choices with many more features, including smart thermostats, averaging as low as $15 to $500 or more, not including the labor to install them. The type of thermostat you choose affects the price and the number of features it comes with.

Thermostat Type Average Unit Cost Range
Mechanical/manual $15 – $35
Non-programmable electronic $20 – $50
Programmable electronic $20 – $150
Wi-Fi $100 – $350
Smart $100 – $500+

Mechanical/Manual/Non-Programmable Thermostat

For the lowest price at $15 to $35 per unit, you can still get the old-fashioned, manual residential or commercial thermostat that functions entirely by moving a small needle or dial left and right to select the temperature. Remember that manual thermostats from 2006 or earlier usually contain mercury, a toxic metal. Newer models don't use mercury. 

This will be your least expensive option, but it'll also come with the fewest features. For example, you’ll have to switch it from heating to cooling and vice versa if you have both heat and air conditioning.

Pros of Manual Thermostats Cons of Manual Thermostats
Lowest cost Not programmable
Easy installation Older units may contain mercury
Easy to use Less accurate reading
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Non-Programmable Electronic Thermostat 

Electronic yet non-programmable thermostats cost about $20 to $50 per unit. They install just as easily as the standard manual types but offer a more precise setting ability with few other features. While it must be turned on and off and switched manually, the digital display can make it easier to select a specific temperature.

Pros of Non-Programmable Electronic Thermostats Cons of Non-Programmable Electronic Thermostats
Inexpensive Not programmable
Easy installation Manually controlled
Accurate reading

Electronic Programmable Thermostats

Electronic programmable thermostats cost around $20 to $150 for most units. If you add internet connectivity, the price can jump to about $350. Electronic programmable thermostats include smart Wi-Fi-enabled models. 

Basic models, which run up to about $50, include no connectivity but the ability to set the HVAC to different temperatures throughout the week. Smart models can learn your preferences without the need to program them. Wi-Fi-enabled models, which include most smart units, can be controlled from anywhere with internet access or cell service. 

Features include the following:

  • Ability to set heating and cooling options

  • Program temperatures according to preset weekday, weekend, and weeklong programs 

  • Numerous programs set for days at a time, helping control homeowners' HVAC costs

  • May illuminate for easy access in the dark 

  • Touch screens

Pros of Programmable Electronic Thermostats Cons of Programmable Electronic Thermostats
Easy-to-read display More expensive
Auto-adjusts Limited preset programs
Easy to install No Wi-Fi on simple models

Wi-Fi Thermostat

Wi-Fi thermostats, a type of programmable thermostat, costs around $100 to $350. They connect to your home network and allow you to control them from anywhere with internet access and often through an app on most phones. If your heating system is Wi-Fi-enabled, these will often control them without hard-wiring them in.

Pros of Wi-Fi Thermostats Cons of Wi-Fi Thermostats
Can control the thermostat from almost anywhere Can be more difficult to hook up and program
Programmable with multiple options Requires an active Wi-Fi network
Easily installed More expensive

Smart Thermostat 

Now that many people use a smartphone, home and business thermostat technology has been updated to include models you can operate remotely. Smart thermostats cost approximately $100 to $500 or more. Whole-home smart systems that include thermostats and other features might exceed $1,000. Although they cost more, they can learn and adjust automatically to help save you 10% to 15% on utility bills, or about $140 per year

Here are some other benefits of smart thermostats: 

  • Can "learn" your preferences as you use it, essentially automatically setting the thermostat 

  • Many functional options 

  • Best suited for homeowners with a consistent schedule because consistency will ensure programmed temperatures accurately reflect the homeowner's preferences 

  • Usually attached to Wi-Fi remote management and monitoring, even when you’re on vacation

  • Wiring and setup are more advanced

  • Can save energy and money 

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Thermostat Replacement Cost Factors

5 cost factors for thermostat installation, including number of units and zones, labor, and repairs
Photot: Dan LeFebvre / Unsplash

Although thermostat replacement costs don't vary much from project to project, some factors might raise or lower the price a little. 

Labor

Most local electricians can install or replace a home, apartment, or business thermostat in two hours or less at around $65 to $100 per hour, for a total labor cost of less than $200. Whether you opt for a modern, digital model or a simple, manual one, the installation costs won’t differ significantly. It's still an electrical job, regardless of your thermostat choice.

Number of Units and Zones

If you need multiple units installed in your home, ask your pro what the price would be to put them in all at once. Although the overall charge may be higher, the per unit rate will almost always be considerably lower if a pro only needs to make one trip to your home.

To set different temperatures for different home areas using one HVAC unit, you'll need a multizoned system with electronic baffles. On top of the price of the units, you'll need to factor in material and labor costs. Baffle charges will vary based on your home's duct sizes. In addition, factor in labor for both a licensed HVAC professional near you and an electrician since this job is too complicated to do yourself.

Repairs

Although unlikely, you may need to make some minor repairs to your home, such as cutting small holes in drywall to run wires. But this is rare, and you’ll likely pay around $50 to $150 to patch a small hole or two. In this case, you might consider installing a wireless smart model. 

New vs. Replacement

The main cost difference between a new and a replacement is the wiring. You'll pay an extra $100 to $200 to run wires to your HVAC system. In cases like this, it's generally better to spring for a smart home system that connects wirelessly to your furnace and AC unit. 

Accessories and Add-Ons

Modern accessories include smart home systems like hubs, lights, locks, and even window shades. Smart home costs range from $50 to $300 for each item, which can quickly add up to a smart home system cost of $1,500 or more. 

  • Alexa Hub: $50–$250

  • Google Nest Hub: $150–$250

  • Smart locks: $100–$300

  • Cameras: $100–$250

Thermostat Prices by Brand

Popular models in every category and price range can be ordered online or purchased at your local home improvement store.

Thermostat Type Model Average Unit Cost
Mechanical/manual Honeywell CT30A1005 Standard Manual Economy Thermostat $15
Honeywell CT87K Round Heat-Only Manual Thermostat $26
Electronic (non-programmable) Honeywell RTH111B1016/E1 Digital Non-Programmable Thermostat $22
Honeywell TH3110D1008 Pro Non-Programmable Digital Thermostat $35
Electronic (programmable) Honeywell RTH2300B1012/E1 5-2 Day Programmable Thermostat $21
LuxPRO PSP511LC 5-2 Day Deluxe Programmable Thermostat $60
Honeywell Home RTH7600D 7-Day Programmable Touchscreen Thermostat $70
Emerson UP400 Touchscreen 7-Day Programmable Thermostat $150
Honeywell TH8321R1001 VisionPRO 8000 Thermostat $190
Smart Emerson Sensi Smart Thermostat, Wi-Fi $170
Ecobee3 Lite Smart Thermostat (works with Amazon Alexa) $150
Ecobee3 Smart Thermostat $220
Nest Learning Thermostat 5th Generation $250

Oven, Dryer, and Water Heater Thermostats

Appliances also include thermostats. While these internal units are relatively inexpensive, they can be challenging to install. For example, replacing a thermostat on a water heater costs between $100 and $300. Therefore, consult a professional for appliance installation costs.

Energy Cost Savings

Although both digital/programmable and smart models cost more upfront than a manual one, the more expensive version of a programmable thermostat could save a homeowner as much as $180 per year on energy bills. Overall, you'll be more comfortable and spend less time adjusting your home or apartment thermostat with a digital model. Program it for your comfort and schedule.

In some areas of the country, like Florida and California, pilot programs exist in which smart models receive wireless signals from the utility company. These units then adjust the temperature according to the price of electricity at different times of the day. At a rate of about $0.70 per hour, reducing air conditioning usage for just an hour per day may save the average homeowner approximately $65 to $110 in just one summer.

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DIY Thermostat Installation or Hire a Pro

Leave electrical work to a professional to prevent injury or damage. However, those who are mechanically inclined can often install a standard manual or electronic thermostat by following the instructions that come with the device. You can also easily install wireless thermostats if your heating or cooling system is Wi-Fi compatible or you have an adapter. 

If you have no skill or experience with electrical tasks, are adding a smart thermostat, or are dealing with unusual circumstances (like multizone baffles, whole-home humidifiers, or dual-fuel systems), consult a licensed home thermostat installer near you or HVAC pro. While it may cost more upfront, ensuring the job is done right can save you time and money on repairs and damages in the long run.

Frequently Asked Questions

Is it worth replacing a thermostat?

It's worth it to replace a thermostat if it isn't working properly and you want to upgrade to a more efficient model. You may also find it worth upgrading to a smart thermostat, which can save up to almost $200 per year. Plus, when installed properly, smart systems make home automation more efficient and convenient. 

What are the signs of a bad thermostat?

A bad thermostat can cause your HVAC not to work, work improperly, and waste money. The signs of a bad thermostat include:

  • The system not turning on

  • The display not functioning properly

  • The HVAC system running continuously

  • The home getting too warm or too cold

How long should a thermostat last?

Most thermostats last at least 10 years. However, you may experience failure sooner than 10 years, and they may last up to 30 years without issue. You may also replace it sooner because technology is becoming more efficient and more items are being added to smart homes.

What causes a home thermostat to fail?

There are a few things that can cause your home thermostat to fail. The most simple one is age and cleanliness. Dirt, grease, dust, and other small particles can clog sensors and cause malfunctions in readings. You may also have a failing power supply and loose connections, and the simplest cause is that it isn't installed in the right place in your home so it can't properly sense air temperature. Repairing a thermostat costs around $210.