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mySmart Thermostat Installation Cost
At a Glance
- The average cost of smart thermostat installation is around £265.
- The job will take approximately 1 to 2 hours to complete.
- A complete thermostat installation pricing breakdown, which includes what you need to consider, along with what such a task usually involves.
- How long the job should approximately take and a general overview of what types of services can be performed.
- How to find local smart thermostat installers with MyJobQuote.
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A smart thermostat gives you remote control of your heating through a mobile app. You can adjust temperatures when you're away from home, schedule heating more precisely, and monitor energy use in real-time.
In the UK, the total cost to supply and install a smart thermostat is typically around £265. This depends on the brand you choose, the complexity of wiring, and your installer's rates.
This guide explains full installation costs, labour fees, supply prices, additional upgrades, and whether DIY installation is realistic.
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£265
Table of Contents
- How Much Does Smart Thermostat Installation Cost?
- What Affects the Cost of Installing a Smart Thermostat?
- Additional Smart Thermostat Installation Costs
- Things to Consider When Installing a Smart Thermostat
- Smart Thermostat Installation (DIY)
- Checklist: Hiring a Smart Thermostat Installer Near You
- FAQs
Smart Thermostat Cost Calculator
How Much Does Smart Thermostat Installation Cost?
The total cost to install a smart thermostat in the UK usually falls between £140 and £370, including supply and labour.
Most homeowners spend approximately £265 for a standard installation.
The thermostat itself generally costs between £100 and £220, depending on brand and model. Labour is typically charged as a fixed installation fee of £60 to £150, with most straightforward swaps landing around £100.
Costs may increase if additional wiring is required or if your existing thermostat system needs upgrading.
How much am I looking at to get a smart thermostat installed if I already have the unit?
"To isolate electrics, disconnect, and remove the existing controls, then install a new smart thermostat supplied by the customer with a test on completion, £189 + VAT."
Smart Thermostat Installation Prices
| Job Description | Total Estimated Cost |
|---|---|
| Installing a smart thermostat | £140–£370 |
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Smart Thermostat Prices by Brand
| Brand | Thermostat only | Supplied and fitted |
|---|---|---|
| Hive Thermostat | £120 | £180–£270 |
| Google Nest Thermostat | £200–£220 | £260–£370 |
| Tado Smart Thermostat | £100–£160 | £160–£310 |
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The supplied and fitted prices include the cost of the thermostat and a fixed labour fee to install it. You may be able to reduce the overall cost by buying the thermostat separately and then paying a tradesperson for installation only, or installing it yourself.
Prices will vary by model and features. Premium thermostats may include geofencing, learning algorithms, or multi-zone compatibility.
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These are the most well-known brands, but many other thermostat companies offer cheaper versions. You should look around for the best price and whether the thermostat will meet your requirements.
Labour Cost of Smart Thermostat Installation
Smart thermostat installation normally takes around 1 to 2 hours and is usually charged at a fixed labour fee of £60 to £150.
The cost of installing a Hive thermostat generally falls within this labour range. A straightforward replacement using compatible existing controls is likely to cost less than an installation requiring wiring changes.
The type of boiler you have does not automatically increase the labour charge. Installers are more likely to base the price on thermostat compatibility and the condition of the existing controls and wiring.
| Job Description | Duration | Labour Cost |
|---|---|---|
| Installing a smart thermostat | 1 to 2 hours | £60–£150 (fixed labour fee) |
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What Affects the Cost of Installing a Smart Thermostat?
Several factors can influence the total price you pay for installation.
- Thermostat Brand and Features — Premium models with multi-zone control or learning functions cost more.
- Wiring Complexity — Older systems may require additional wiring or receiver units.
- Boiler Compatibility — Some older boilers may need minor upgrades to support smart controls.
- Installer Rates — Labour costs vary depending on location and experience.
Additional Smart Thermostat Installation Costs
When installing a smart thermostat, you may consider upgrading other parts of your heating or electrical system.
I had a smart meter fitted, and now my shower only has hot water for 10 mins. Can this be related to my fusebox?
"It shouldn’t really affect your hot water at all. There might be some wiring that needs changing or checking. I would advise you to have your boiler checked over."
Depending on how your heating is currently set up, your quote could also cover the following:
- Changes to the Wiring — If there is no live electrical feed at the boiler, the installer may need to add wiring and charge for this as an extra.
- A Separate Hub or Receiver — Check what comes with your chosen thermostat, as some models require an additional hub or receiver that may not be included in the purchase price.
- A Second Heating Zone — If you want to control two areas of your home independently, you can add a second heating zone for £84 when it is fitted during the same visit as the first thermostat.
- Smart Radiator Valves — If you want to adjust the heating in each room separately, you can add smart radiator valves for £30 to £80 per radiator. You will need one valve head for each radiator you want to control, while multipacks work out at around £42 to £65 each.
If you want access to the additional features available through Hive+, membership costs £3.99 a month or £39.90 a year. However, Hive+ membership is not required for the thermostat to operate.
You may also want to compare smart lighting costs if you plan to upgrade other parts of your home.
Things to Consider When Installing a Smart Thermostat
There is a difference between smart meters and smart thermostats:
- Smart meters will tell you information on your gas and electric meter readings, sharing that with your energy supplier.
- Smart thermostats allow you to remotely control your heating from your phone, even when you're not home.
Many energy companies will install your smart meter at no upfront cost. If the meter needs relocating, the cost of moving a gas or electric meter is treated separately. Smart thermostats are different because you pay for the device and its installation.
Installation prices will vary depending on the type of smart thermostat you buy, and the labour costs.
How can a smart meter improve the energy efficiency of my household?
"It's all about using your services and device in a better and more effective way. The smart meter displays your usage, helping you remember to turn off lights and avoid standby mode when you're not around. This way, you stay in control and are more informed, allowing you to act more efficiently."
Smart Thermostat Installation (DIY)
Whether you can fit a smart thermostat yourself will depend on the model and the controls already in your home. Nest's app guides users through a setup that Google estimates will take most people 20 to 30 minutes, although the Google Store actually recommends hiring a professional to install it.
Similarly, Hive recommends using an experienced local tradesperson unless you are confident working with electrical wiring.
The wall-mounted thermostat is usually straightforward to install. Most of the work is involved in fitting and wiring the receiver at the boiler or existing programmer, where the current connections need to be identified and reconnected. For this reason, the job is best carried out by an electrician.
Here's what we suggest if you want to install a smart thermostat yourself:
- Look online for a step-by-step installation video from your smart thermostat manufacturer.
- Ensure you've got the right tools to hand before starting (screwdriver, spirit level, drill).
- Make sure you label the wires clearly before disconnecting them so you know what they are.
Most thermostat replacements on an existing circuit in England do not need to be reported to building control. However, different rules apply when the thermostat is within an electrical zone near a bath or shower. Whether you install it yourself or use an electrician, the work should meet the UK-wide BS 7671 wiring standard.
The requirements differ depending on where you are in the UK. Wales uses its own Approved Documents, while Scotland follows the Building (Scotland) Regulations 2004 and Northern Ireland uses its own Technical Booklets, so ask your installer who will certify the electrical work.
Can I install a smart thermostat myself, or must a professional do this?
"I personally think that an electrician should have a look at this for you."
Checklist: Hiring a Smart Thermostat Installer Near You
Here's what we suggest when you're looking for a smart thermostat installer:
- Have you compared several quotes? Gather at least 3 quotes from local smart thermostat installers to compare your costs.
- Is the quote fully itemised? Ensure quotes are itemised so you can see exactly what's included in your quote, leaving no room for hidden fees.
- Do they have experience installing heating controls? Check that the electrician is familiar with smart thermostats and heating-control wiring, particularly the make and model you are having fitted. You can also look for registration with a recognised electrical scheme such as NICEIC or NAPIT to help confirm their qualifications.
- What do their customer reviews say? Take a look at the thermostat installer's customer reviews, taking note of any unhappy customers as these could be red flags for you.
- Have they installed your thermostat before? Be sure to check the installer is comfortable with your exact smart thermostat and has experience in fitting and installing them.
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FAQs
Will a Smart Thermostat Work with My Existing Boiler?
Most smart thermostats will work with existing boilers, including combi and system boilers. Most gas and LPG boilers are compatible, as are oil and electric models with a conventional thermostat or programmer.
Before buying, check the existing controls, as a smart thermostat may not replace intelligent modulating controls on some oil boilers. For a combi boiler, check whether it supports OpenTherm, which allows compatible thermostats to adjust the boiler's output rather than simply switching it on and off.
Can I Just Swap My Existing Thermostat for a Smart One?
Yes, this is usually possible if you already have a wired room thermostat or programmer. Replacing an existing wired control can keep costs down, as you would usually only pay the fitting charge. Older manual controls may need some additional wiring before a smart thermostat can be fitted, which can increase the cost slightly. Ask an installer to assess your existing setup and provide a quote beforehand.
How Much Can I Save Using a Smart Thermostat?
How much you save depends on the controls being replaced. Savings are likely to be higher if your heating was previously left on all day or used an old dial without a timer, as a smart thermostat can avoid heating an empty home.
However, you might not save as much if you already use a programmer effectively. UK government-backed research found savings of around 5% of total gas use, with the trial measuring approximately 4.5% to 5% of household gas and 6% to 7% of the gas used for heating.
Does a Smart Thermostat Need Wi-Fi to Work?
You'll need Wi-Fi to operate your smart thermostat for features like scheduling or controlling heating automation from your phone or another smart device, such as Alexa.
But, if your internet connection goes down, the thermostat will still operate with basic functionalities. However, you just won't be able to change the settings from your devices until you resolve the issue.
What Should a Smart Thermostat Installation Quote Include?
Your quote should normally cover removing the existing controls, wiring and connecting the new thermostat and receiver, setting up and testing the system, and showing you how to use the basic controls. Check whether the thermostat itself is included, as the device, any additional wiring and work needed to make older controls compatible are normally charged separately.
