How Much Does It Cost to Fit a Smart Thermostat?
£150 – £400
supply and fit
The cost to supply and fit a smart thermostat ranges from £150 to £400, depending on the brand, compatibility with your boiler, and whether a new wiring centre is needed. Popular models such as Nest, Hive, and tado suit most modern gas boilers, but older systems may require additional components to become compatible.
Average cost
£150 – £400
supply and fit
Prices vary by region, property type and tradesperson. Always get at least two quotes.
What affects the price?
Thermostat brand and model - a Hive starter kit costs around £130; a Nest Learning Thermostat costs £180-£220; premium zone-control systems cost more
System compatibility - some boilers require a relay or additional wiring centre to work with smart thermostats, adding £50-£100
Existing wiring - if old thermostat wiring is not compatible, new cabling may need to be run
Number of zones - a single-zone thermostat is cheapest; multi-zone systems with smart TRVs cost significantly more
Labour vs materials
Installation typically takes one to two hours. Labour accounts for £60-£150 of the total cost; the thermostat unit and any ancillary parts make up the remainder.
Questions to ask your tradesperson
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