The 3 best smart thermostats🇬🇧 United Kingdom
Methodology v1.0.0 · computed 13 Jun 2026 · how we rank · AI-drafted, pending editor review
Smart thermostats let you control home heating from an app and automate schedules to improve comfort and cut waste. The best ones combine reliable boiler compatibility, intuitive controls and genuinely useful scheduling. Our top 3 are scored from aggregated UK reviews.
1Best Overall
Google Nest Learning Thermostat 3rd Gen
Nest
High confidence · 4 sourcesNarrow win — +0.9 pts over #2
90.0
/ 100 · n=32,003
Sources behind this score
Do you agree with this pick?
What to look for in smart thermostats
- •Compatibility with your boiler and heating system
- •Scheduling, app quality and remote control
- •Smart home integration and ease of installation
Frequently asked questions
- Will a smart thermostat work with my boiler?
- Most work with common combi and conventional UK boilers, but compatibility varies. Check the manufacturer's checker against your system type and wiring before buying, especially for older heating setups.
- Can a smart thermostat save money on heating?
- By scheduling heating precisely and avoiding heating an empty home, it can reduce waste. Actual savings depend on your habits, home insulation and how well you use the features.
- Do I need a professional to install one?
- Some models are designed for simple replacement of an existing thermostat, while others involve wiring at the boiler. If unsure, a qualified heating engineer should carry out the installation safely.