Best Honeywell Thermostats Deals Online in the UK (10 Deals Found)

Last Updated - 14/09/2026 Sort By:

Best Choice
Honeywell

New
Honeywell T3R Y3H710RF0053 Wireless Thermostat 7 Day Programmable & Receiver
Wireless

£71.95
Honeywell Home

New
Honeywell Home MT1 Mechanical Environment Thermostat
Mt1 room thermostat is designed to provide automatic on/off control For GAS boiler, circulation pumps, relays and Zone v

£26.24
TotalHome

New
TotalHome - Wireless Room Thermostat & Receiver (Honeywell/Resideo) CM927 CM921 CM727 CM721 CMS927 CMS927B1049 (Mk2 Repl
TotalHome is designed and manufactured by Honeywell/Resideo.

£61.99 £64.99
Honeywell Home

New
Honeywell Home T6 Wired Smart Thermostat - Black - Touchscreen Heating Control with Geofencing, Alexa, Apple & Google -
Smart Scheduling - Customise your heating with a 7-day or 5/2-day schedule, featuring up to 6 daily periods. This Wi-Fi

£155.28
Best Value
Honeywell Home

New
Honeywell Home T3R Wireless Smart Thermostat Kit - 7-Day Programmable Wall Thermostat with Intuitive Controls - 868 MHZ
Versatile Compatibility - Compatible with 24-230V on/off and OpenTherm systems, including gas boilers, combi boilers, an

£69.90 £74.50
30% Off
Honeywell Home

New
Honeywell Home T3 Wired Smart Thermostat Kit - Wall Thermostat with Flexible Programming & ECO Mode - Battery Operated,
Versatility & Compatibility - This smart thermostat is designed to work seamlessly with 24-230V on/off and OpenTherm app

£48.98 £69.99
12% Off
Honeywell Home

New
Honeywell Home THR840DEU DT2 Thermostat, White
Digital wired on/off thermostat

£46.00 £52.48
Honeywell Home

New
Honeywell Home T135C110AEU DT135 Digital Non-Programmable Thermostat, White
Digital wired non-programmable thermostat ideal for hydronic heating applications. Compatible with gas, oil or electric

£25.17
Honeywell Home

New
Honeywell Home T6R Smart Thermostat works with Apple HomeKit and Amazon Alexa replacement for NEST, TADO, ...
Smart, Energy Efficient Savings: The T6R is a wireless, Wi-Fi enabled thermostat that gives you control when home or awa

£187.08
LavaTap

New
LavaTap Pro Honeywell Wireless Programmable Thermostat CM927 CM921 CM727 Replacement 7 Day Central Heating Programmer Bo
Made And Supported By Honeywell Resideo: Manufactured and supported providing recognised product backing and technical s

£77.95

10 Honeywell Thermostats deals are available from: Amazon stores, starting from £25.17.
The biggest discount we found is 30% on Honeywell Home T3 Wired Smart Thermostat Kit - Wall Thermostat with Flexible Programming & ECO Mode - Battery Operated, Compatible for Combi Boilers & Heat Pumps - CM907 Replacement (T3C110AEU) at Amazon.
The lowest price we found is £25.17 while the highest is £187.08.
Prices for the best Honeywell Thermostats deals average at £77.05.
Last updated on September 14, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Honeywell Thermostats.