How Much Does A Thermostat Cost To Install or Replace In Home?
$80 – $200 Labor Only
$140 – $350 Install + New Unit
$140 – $350 Install + New Unit
The cost to replace a basic programmable thermostat is $100 to $340, while a smart thermostat like Nest costs $270 to $450 for the unit and professional installation. A new thermostat costs $15 to $250 depending on the type and features. Labor costs $80 to $200 to install a thermostat. Get free estimates from thermostat installers near you or view our cost guide below.
Thermostat Replacement Cost
The average cost to replace a thermostat in a home is $140 to $350, including the unit and professional installation. Thermostat prices range from $15 to $250, depending on the type, brand, and features. Nest thermostat installation costs $100 to $200 for labor if the unit is provided.
|Type||Thermostat Cost||Install Labor||Total Cost To Replace|
|Smart||$100 – $250||$100 – $200||$200 – $450|
|Wi-Fi||$70 – $200||$100 – $200||$170 – $400|
|Digital Programmable||$80 – $140||$80 – $200||$160 – $340|
|Electronic Non-Programmable||$20 – $50||$80 – $150||$100 – $200|
|Manual / Mechanical||$15 – $40||$65 – $150||$80 – $190|
DIY installation is possible is you have basic electrical knowledge. Otherwise, electricians charge $40 to $100 per hour for a home thermostat replacement, which takes 30 minutes to 3 hours on average.
|National Average Cost||$229|
|Average Range||$142 to $346|
An improper DIY installation runs the risk of blowing out the new thermostat, HVAC unit, or circuit breaker, or suffering an electric shock. Get free quotes from thermostat installers near you, or compare prices and types of units below.
Table of Contents
- Thermostat Replacement Cost
- Thermostat Prices
- Thermostat Installation Cost Factors
- New Thermostat Costs By Brand
- Cost to Change Furnace, Refrigerator, & Oven Thermostats
- Thermostat Energy Cost Savings
- Considerations When Replacing a Thermostat
- Frequently Asked Questions
- Hiring A Thermostat Installer
- Thermostat Installation Near Me
Thermostat prices range from $15 for a basic mechanical unit, up to $320 for a smart self-learning unit that saves energy. Costs depend on the type, brand, and amount of features included. Professional installation adds $80 to $200 to your total cost.
|Smart||$150 – $320||Control remotely, learns automatically, energy savings|
|Wi-Fi||$70 – $200||Digital, control remotely, programmable|
|Digital Programmable||$60 – $140||Digital touch-screen, programmable, auto-adjusts|
|Electronic Non-Programmable||$20 – $50||Digital display, manually controlled|
|Mechanical / Manual||$15 – $40||Lowest cost, non-programmable|
Choices to consider before purchasing are:
- Battery-powered or hardwired? Single-stage, two-stage, or variable capacity?
- Programmable by day or week or controlled manually or self-adjusts with learning?
- Dial or touchscreen or buttons?
- Controlled remotely by a smartphone app or by voice? Built-in Wi-Fi or Bluetooth?
- No display or digital/electronic display? Backlit?
- Connected to a central control hub or just to your heating/cooling system?
- Switch automatically from heating to cooling or not?
- Filter and battery indicator? Lockable?
Cost To Install Smart Thermostat
The average cost of installing a smart thermostat is $225 to $400, depending on the brand, model, features, and if the wiring needs updating. Without installation, the cost of a smart thermostat unit ranges from $100 to $250.
|Brand||Thermostat Unit||Unit + Installation Cost|
|Ecobee||$170 – $240||$270 – $440|
|Hive||$120||$220 – $320|
|Honeywell||$99 – $229||$200 – $430|
|Lux / Kono||$103 – $149||$200 – $350|
|Google Nest||$150 – $249||$250 – $450|
|Emerson Sensi||$95 – $128||$200 – $330|
Smart thermostats like Nest automatically learn your preferences over time and optimize the energy used to save money. Plus, you can connect to the thermostat remotely over Wi-Fi to adjust temperatures or program a heating and cooling schedule.
Wi-Fi Thermostat Installation Cost
A Wi-Fi thermostat costs $70 to $200 for the unit and between $100 to $200 for professional installation. A Wi-Fi or Bluetooth-controlled thermostat allows for remote access, but doesn't learn like a smart unit over time. Popular brands include Lennox, iComfort, and Honeywell.
Cost To Install Digital Programmable Thermostat
The average cost to install a programmable is $200 to $300, depending on the type and features. A digital programmable thermostat costs $80 to $140 for the unit only. The more expensive ones may include a touchscreen, vacation override, keyboard lock, and programmable scheduling.
Two-stage heating systems that have two heat outputs will require a digital thermostat unique to that system.
Electronic Non-Programmable Thermostats Cost
The average electronic thermostat costs $20 to $50 for just the unit, with installation labor adding $80 to $150 to that amount. These use an electronic temperature sensor to open or break the electric circuit to the heating or cooling system.
Mechanical, Manual, Analog, or Non-Programmable Thermostats
A manual thermostat costs $15 to $40, and the labor cost to install ranges from $65 to $150 unless you DIY. Mechanical or manual units are being phased out since some contain small levels of mercury and have minimal features. About 80% of the mechanical thermostats are heat-only types.
Thermostat Installation Cost Factors
Thermostat installation costs depend on the cost of the unit, labor, running new thermostat wire, replacing the housing, moving a thermostat, installing a central hub, additional remotes, or hooking it up to a multi-zone system.
Replacing a thermostat with a similar unit is quick and easy as the wiring is the same, but if you’re replacing an old analog unit with a smart unit, additional costs for working with drywall or adding new wiring may apply.
|Thermostat Unit||$15 – $250|
|Labor||$65 – $200|
|Drywall Repair||$75 – $150|
|Wiring Repair||$6 – $10 per foot|
|Moving Unit||$135 – $450|
|Smart Hub||$70 – $230|
|Accessories||$20 – $150|
Thermostat Labor Cost
The average labor cost for a thermostat replacement is $80 to $200, depending on the amount of time the install takes and if it's a basic or smart thermostat. HVAC service costs $50 to $150 per hour to install a new thermostat, which takes 30 minutes to 3 hours on average.
|Smart||$100 – $200|
|Wi-Fi||$100 – $200|
|Digital Programmable||$80 – $200|
|Electronic Non-Programmable||$80 – $150|
|Manual / Mechanical||$65 – $150|
Replacement may include changing the location of the unit, additional wiring or circuitry, programming, or cutting into walls that adds to the overall cost. States with a higher cost of living, such as Alaska, California, and New York have higher labor rates.
Number of Thermostats
Contractors may offer discounts for installing multiple thermostats at once, such as if you have a multi-zone HVAC system with electronic dampers or baffles. Multi-zoned systems save on enery costs and have remote sensors to set the temperature in each zone the HVAC system controls.
An HVAC zoning system costs $1,700 to $4,500 on average.
Cost To Run New Thermostat Wire
The average cost to run a new thermostat C-wire is $90 to $135, depending on the access points and placement of existing wire. Installing a C-wire is required in older homes when upgrading to a thermostat that uses continuous power to run the display and Wi-Fi connection.
About 90% of thermostats require a C-wire to get running. Some brands include a C-wire adapter with the kit.
Repair, replacement, and connection of existing thermostat wiring costs $60 to $200 for complex jobs over a longer distance. Some furnaces must be wired to the thermostat while others have sensors added.
Cost To Move A Thermostat
The average cost to move a thermostat is $135 to $450, depending on the distance. Drywall repair costs $75 to $150 to patch the old hole and cut a new one, while wiring installation runs $6 to $10 per foot.
|Moving 10 Feet||$135 – $250|
|Moving 20 Feet||$195 – $350|
|Moving 30 Feet||$255 – $450|
*Does not include cost of a new thermostat.
Moving a thermostat to a temperature-stable area saves on energy bills since the HVAC won’t be triggered to start unnecessarily. Move the unit out of the sun, away from drafts, electronics, or dead air space. HVAC professionals recommend moving it near a return-air duct to measure the temperature accurately.
While thermostat accessories often come with the unit, sometimes you’ll need to buy them separately.
|Cover||$20 – $40||Prevents others from changing the controls, locked with a combination number or key. Other covers merely change the exterior color of the unit.|
|Wall Plates||$6 – $20||Typically included with the thermostat. Helps hide holes in drywall.|
|Temperature Sensor||$40 – $100||Addition to control heating and cooling zones efficiently.|
|Batteries||$1 – $5||For backup or primary power source.|
Smart Home Hub / Remote System
Smart hubs or remote systems cost $70 to $230 on average and can control temperature, lighting, security, and appliances all from one app. Remote hubs for thermostats require a C-wire (common wire) to give continuous power.
|Amazon Echo||$49 – $99|
|Wink Hub||$69 – $99|
|Apple HomePod||$199 – $299|
|Google Nest Hub||$75 – $229|
|Samsung SmartThings Hub||$69 – $129|
New Thermostat Costs By Brand
Prices for buying a new thermostat also vary by brand and the unit's features. Most popular thermostats can be purchased from local home improvement stores, or online via Amazon. Here are the costs of top-rated thermostats by type.
|Mechanical / Analog||Honeywell 1025 Deluxe Manual Thermostat (RTH5100B)||$44|
|Honeywell CT50K Non-Programmable Manual Thermostat (CT50K1028)||$30|
|Lux Products Mechanical Heating and Cooling Thermostat (T101143SA)||$18|
|Digital Programmable||ELECTECK Thermostat, 5-1-1 Day Programmable, Large Digital LCD Display||$28|
|Honeywell T4 Pro Program Mable Thermostat (TH4110U2005/U)||$42|
|Honeywell E1 Digital Heat/Cool Pump Thermostat (RTH3100C1002)||$48|
|Electronic Non-Programmable||PRO1 IAQ Non-Programmable Electronic Thermostat (T701)||$42|
|Emerson Conventional (1H/1C) Non-Programmable Thermostat (1F83C-11NP)||$36|
|Honeywell Focuspro 5000 Non-Programmable Thermostat (TH5220D1029)||$83|
|Wi-Fi||Honeywell Wi-Fi Touch Screen Programmable Thermostat (TH9320WF5003)||$139|
|Honeywell Home Wi-Fi Smart Color Thermostat, 7 Day Programmable (RTH9585WF1004)||$199|
|Honeywell Home Wi-Fi 7-Day Programmable Thermostat (RTH6580WF)||$68|
|Smart||Google Nest Learning Thermostat + 2 SENSORS (BH1252)||$279|
|Nest Learning Thermostat 3rd Gen, 2 Pack Wifi Smart Plug (T3007ES)||$249|
|Emerson Sensi Wi-Fi Smart Thermostat for Smart Home (ST55)||$94|
|Ecobee3 Smarter Wi-Fi Thermostat with Remote Sensor||$170|
|Ecobee 3 Lite Smart Thermostat 2nd Gen with 2 Room Sensors||$279|
|Hive Heating and Cooling Smart Thermostat Pack||$120|
*All pricing from Home Depot, Menards, Lowes, Amazon, and Google Store.
Nest Thermostat Installation Cost
The average Nest thermostat installation costs $100 to $200 for labor-only if you provide the thermostat unit. Installation takes 30 to 60 minutes, depending on if you’re also setting up the Nest hub.
|Nest Thermostat Unit||$169 – $249|
|Installation Labor||$100 – $200|
|Total Cost||$269 – $449|
DIY Nest installation is also possible for tech-savvy homeowners. Watch their installation video series to get started.
Hive Thermostat Installation Cost
The average Hive thermostat installation costs $100 to $200 for labor-only if you provide the thermostat unit. Installation takes less than 90 minutes, depending on if you’re also setting up the Hive hub. Hive's smart thermostat comes with a one-year warranty and is Energy Star certified. Watch their video guide for DIY installation.
|Hive Thermostat Unit||$139|
|Installation Labor||$100 – $200|
|Total Cost||$239 – $339|
Other Popular Thermostat Brands & Prices
|Honeywell||$13 – $229|
|Carrier / Infinity||$296 – $655|
|Lennox iComfort / Comfortsense||$80 – $499|
|Lux Kono / GEO||$103 – $149|
|Ecobee||$169 – $328|
|Trane Comfortlink II||$590|
|Emerson / Sensi||$94 – $169|
Cost to Change Furnace, Refrigerator, & Oven Thermostats
The cost to change a thermostat for a furnace, refrigerator, oven, or other appliances depends mainly on the labor and difficulty of access.
|Appliance||Thermostat||Labor||Total Replacement Cost|
|Furnace||$40 – $80||$150 – $400||$190 – $480|
|Wall or Floor Heater||$30 – $85||$200 – $400||$230 – $485|
|Refrigerator||$10 – $40||$200 – $400||$210 – $440|
|Electric Water Heater||$30 – $70||$100 – $150||$130 – $220|
|Gas Water Heater||$90 – $140||$100 – $150||$210 – $340|
|Oven||$30 – $140||$50 – $100||$80 – $240|
|Boiler||$160 – $280||$120 – $200||$280 – $480|
|Dryer||$10 – $35||$200 – $400||$210 – $435|
|Air Conditioner||$30 – $80||$90 – $120||$120 – $200|
AC & Furnace Thermostat Replacement Cost
In some homes, the AC and furnace thermostats are installed seperate. The average cost to replace a furnace thermostat is $190 to $480, while replacing an AC thermostat runs $120 to $200. These individual systems apply to homes that have an alternative heating source, or only need to cool certain rooms.
Wall or Floor Heater Thermostat Replacement Cost
A wall or floor heater thermostat replacement costs $230 to $485 on average , depending on the type and voltage. Each manufacturer typically has a list of compatible replacements and most work off low-voltage while others are plug-in.
- High-voltage or line-voltage thermostats cost $30 to $85, plus labor. They are usually mounted beside the unit and have a twist dial.
- Millivolt thermostats cost $20 to $50, plus labor. Many of these heaters are gas-fired.
Refrigerator Thermostat Replacement Cost
The average refrigerator thermostat replacement costs $100 to $250 to replace. A refrigerator thermostat costs $10 to $40 for just the part. Installing a digital thermostat is preferable since it can keep the desired temperature accurate and consistent.
The thermostat needs to be replaced if there is no click when you turn it from the lowest to the highest setting or if a multimeter shows it has no continuous voltage, current, and resistance.
Hot Water Heater Thermostat Replacement Cost
A hot water heater thermostat replacement costs $150 to $350 on average, depending on if it's gas or electric and whether the heating element is replaced. Most water heaters have two thermostats and two elements that are replaced at the same time. Many technicians recommend replacing it with a programmable wireless option.
|Electric Water Heater||$130 – $220|
|Gas Water Heater||$210 – $340|
- Electric – Replacing an electric water heater thermostat is an easy DIY job if you're comfortable working with electrical wiring and are sure to turn off power to the unit.
- Gas – Replacing a gas water heater thermostat requires a professional as it’s usually part of the gas valve.
Boiler Thermostat Cost
The average cost of a new thermostat for a boiler is $279 to $479 for a complete replacement. Prices range from $159 to $279 for the unit, and $120 to $200 for the installation labor.
Oven Thermostat Replacement Cost
The average cost to replace an oven thermostat is $80 to $240. An oven thermostat has a sensor bulb and capillary tube in a mounting bracket within the control panel, and the entire thing will be replaced.
Dryer Thermostat Replacement Cost
Replacing a dryer thermostat costs $150 to $300 on average, while purchasing the parts to make the repairs yourself runs $40 or less. Replacing the electronic control board, which ties to the thermostat costs $100 to $200 more. Compare this to buying a new dryer for $300 to $1,200.
If there is no heat at all or it overheats quickly and shuts off, replace the thermostat. Otherwise, if the clothes are taking ages to dry, check if your lint duct is clogged.
Thermostat Energy Cost Savings
Upgrading to a digital, programmable, or smart thermostat with proper settings can save $180 per year on your energy bills. Using a ceiling fan for air conditioning saves $42 per season, and $5 during winter when operated in reverse.
Also, changing the house temperature by 7 to 10 degrees while sleeping saves up to 10% on your heating and cooling costs, or about $106 per year. Check the Energy Star site for possible rebates in your area when you install or upgrade your thermostat.
Energy providers in some cites offer a $25 rebate for each smart thermostat you purchase and install, and up to an $85 incentive to enroll in a voluntary power management program. The program briefly adjusts your temperature setting during peak energy demand to save money.
Are Smart Thermostats Worth The Cost?
Smart thermostats save up to 15% on your energy bill when programmed correctly. Smart thermostats learn your temperature adjustment habits and save $180 per year by optimizing the heating and cooling cycles.
Cost of Raising or Lowering Thermostat 1 Degree
Reducing or increasing your heater by one degree lowers or raises your heating bill by 5.4% for that month or about $3 on an average $60 bill. Changing the AC up or down by 1 degree adds or subtracts 10% to 18% in energy costs per month, or $30 on an average $200 bill.
Savings or expenses depend on the cost of gas and electricity; your HVAC equipment’s performance, condition, and size; insulation; and your local climate. Consider improving the insulation in both the attic and basement before changing comfort levels in the home.
Considerations When Replacing a Thermostat
Considerations when replacing a thermostat include its disposal method, the location of the new thermostat, scheduling the replacement work, the contractor’s experience, and the amount of expected drywall damage.
- Hazardous waste – Thermostats older than 2002 might contain mercury, and disposal methods must follow state laws. If you see an ampoule of silver mercury, bring it to a hazardous waste facility, HVAC supplier, or ask your contractor.
- Location – Install the thermostat away from direct sunlight, heat sources, drafts, warm appliances or devices, or dead air space (behind doors or furniture), so it can accurately assess the temperature.
- Scheduling the Install – Choose a day and time when you likely won’t need heat or cooling in case the installation takes longer than expected.
- Renting – If a landlord pays the energy bills, ask if they will cover the installation cost. However, this means you cannot take the thermostat with you when you move.
- Drywall or Wall Plate – Expect to pay more to add a wall plate or fix and paint the drywall if the new thermostat is smaller than the old one.
Thermostat Compatibility and Staging
The new thermostat must be compatible with the power requirements of the existing system. Most HVAC systems are called low-voltage systems, and they use 24V power—typically AC units, split units, boilers, furnaces, electric baseboards, and heat pumps.
Installing a thermostat to a line voltage circuit without using an adapter or rewiring can break the thermostat and even cause a fire. All thermostats turn the heating and cooling system on or off through either:
- Single-stage – Manual control, only runs at full capacity.
- Two-stage – Two levels of output. Unit runs for longer periods, but provides more balanced temperatures.
- Variable Capacity – More energy-efficient and quieter than two-stage. Sensors communicate the temperatures to the unit to precisely control how much heating or cooling is required as efficiently as possible.
- Zoned System – In addition to the stage type, separate heating and cooling zones can turn on or off based on sensors working with the same HVAC system.
Frequently Asked Questions
When Should I Replace My Thermostat?
You should replace your thermostat every time you replace your central air conditioner, heater, or HVAC system. Thermostats typically last 10 years before their performance starts to decline or they stop working.
- Thermostat has a short battery life, dusty coil, or wiring issues.
- Thermostat has a blown fuse, transformer issue, or primary circuit board problem.
- Thermostat is tilted or in a bad location and needs to be moved.
- Programmed settings change on their own.
- Heat anticipator needs adjustment to a longer or shorter lag time.
What Are the Symptoms of a Bad Thermostat?
Common symptoms of a bad or failing home thermostat are:
- Thermostat display not working or only partially functioning, and there are no power or circuit issues.
- Thermostat’s recorded temps in the house don’t match temps measured with another recorder.
- It doesn’t switch heat or cool air on or off within 15 minutes of you changing the settings.
- Hot or cold air turns on and off too frequently, takes too long to turn on, or doesn’t work at all.
- The batteries have corroded the connection points. Replace the batteries once a year to avoid corrosion.
- Using a multimeter, check if your electrical connections are working or if it’s the thermostat that’s broken. It measures voltage, current, and resistance.
How Long Does A Home Thermostat Last?
A home thermostat lasts 10 years on average. The life expectancy depends on proper maintenance like dusting the coils, adjusting the anticipator, and making sure the thermostat is level. After a decade, the thermostat’s performance often begins to decline.
How Long Does It Take to Replace A Thermostat?
Replacing a thermostat takes 30 minutes to 3 hours on average, depending on the type, accessories, and if any repairs are needed. Smart thermostats take the longest to install and require rewiring and Wi-Fi setup.
How to Replace a Thermostat?
- Tools and materials – Needle-nose pliers, screwdriver, cell phone camera to record existing wiring, screws, mounting plate, thermostat.
- Power – Make sure you turn the power off at the circuit breaker before beginning, and also the power to your AC or furnace unit.
- Photo – Once you have removed the thermostat face, take a picture of the existing wiring to ensure the correct new wiring, or label them.
- Disconnect wiring – Disconnect wires and take care not to let connecting wires slip back into the wall by taping them or wrapping them around a pencil. Remove old thermostat.
- Line up – the new mounting plate against the wall and mark the screw holes with a pencil. Install anchors into drywall.
- Connect new wiring – Twist the bare end of the existing and new wires together. Connect:
- Red to red – the 24-volt AC power to the thermostat
- White to white – usually for heat
- Blue or yellow to the B or Y connection – usually for cooling.
If the thermostat has a ground wire labeled G or C, connect it to the circuit ground wire, which is usually black but sometimes green (which could alternatively be for the blower fan).
- Wall repair – Take care of any wall finishing.
- Unit – Screw new unit to the wall. Turn the power back on.
What’s the Best Setting for My Thermostat?
According to a study by the National Renewable Energy Laboratory (NREL), the mean indoor temperatures homeowners set their thermostats to for the most comfort are:
- Heating: 70°F (21°C)
- Cooling: 75°F (24°C)
Hiring A Thermostat Installer
When replacing an older two-wire manual thermostat, a DIY replacement is possible once the power to the house is turned off. Installing more complex systems such as a smart, digital, or Wi-Fi unit can have 10 to 12 wires to connect and requires a professional.
An improper installation runs the risk of blowing out the new thermostat or HVAC unit or suffering an electric shock. When hiring a professional, be sure to:
- Get at least three estimates to compare.
- Ask for recommendations from family, friends, and neighbors.
- Read reviews and check out their previous work on HomeGuide, Google, and the Better Business Bureau (BBB).
- Never pay upfront or in cash. Agree on a payment for work completed.
Get free estimates on HomeGuide from trusted thermostat installation services:
- Tyler, Mark C. "2019 National Electric Estimator." (2019). PDF file.
- Thomson, James A. “2019 National Plumbing & HVAC Estimator.” (2019). PDF file.
- Paxton, Albert S. "2019 National Repair and Remodeling Estimator." (2019). PDF file.
- Actual Project Costs Reported By 411 HomeGuide Members. (2020).
Thermostats – The Home Depot. (n.d.).
Thermostats - Lowe's. (n.d.).
Household Thermostats | Amazon.com. (n.d.).
Thermostats & Freeze Alarms at Menards. (n.d.).
How Much Does It Cost To Hire An Electrician? (2019).
How Much Does HVAC Repair, Service, and Maintenance Cost? (2019).
Nest Smart Device Installation. (n.d.).
Google Nest. How to install the Google Nest Learning Thermostat. (2015).
How Much Does It Cost To Repair Drywall? (2019).
Nest Learning Thermostat. (n.d.).
Smart & Wi-Fi Thermostats - Best Buy. (n.d.).
Can a Smart Thermostat Actually Save You Money? (2016).
Lowe's Home Improvement. How to Install a Programmable Thermostat. (2014).
Honeywell Home. How to install your Honeywell Home T5+ or T9 Smart Thermostat. (2019).
Program Your Thermostat for Energy Savings. (2016).
Tips on Saving Money & Energy at Home. (2014). PDF File.
Thermostats - Honeywell Store. (n.d.).
Thermostat Buying Guide. (2019).
20+ Thermostat Installers in Ashburn, VA
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