Working Across Devon
Got Heatmiser Issues?
If your Heatmiser system is not working properly, keeps dropping offline, or was never set up correctly in the first place, you’re not alone. Across Devon, especially in Kingsbridge, Salcombe and the South Hams, Heatmiser systems are extremely common and very often poorly installed or incorrectly configured.
Heritage Electrical Automation specialises in Heatmiser systems. With over 20 years as a qualified electrician and more than 15 years working in smart home automation, Paul is regularly called in to fix Heatmiser installations that other installers cannot. From simple faults to complex, multi-zone systems across large homes, this is specialist work done properly.
Our Work
How we Fully Modernised an Electric Underfloor Heating System in Totnes, Devon
See how we fixed a complex Heatmiser Neo system in a Totnes property in Devon with unsafe wiring and high-load UFH circuits.
What We Do
Heatmiser Installs, Upgrades & Retrofits
Heatmiser is an excellent smart heating platform when it is installed and programmed correctly. The problem is that many installations stop at “it’s wired in” rather than being fully optimised.
Paul installs and upgrades Heatmiser systems across Devon, working with:
Heatmiser Neo and NeoHub systems
Wired and wireless thermostats including Neo Air
Electric and water-based underfloor heating
Radiator zoning and mixed heating systems
Installations are designed to work reliably, be easy to control from the app, and integrate properly with the rest of the home. This is especially important in larger properties, older homes and holiday houses where Heatmiser systems are often stretched beyond their original design.
Heatmiser Repair & Fault Finding
This is where most enquiries come from.
Many Heatmiser systems stop working due to:
Poor wiring practices
Incorrect contactor or load handling
Network issues causing thermostats or hubs to disconnect
Bad original programming
Systems retrofitted without considering electrical capacity
Paul is known for fixing Heatmiser systems that others cannot. He regularly receives calls from across the UK, including London and Edinburgh, to diagnose and repair complex installations.
In Devon, where properties often have thick stone walls, long cable runs and unreliable internet connections, Heatmiser systems frequently fail for reasons that are not obvious. Fault finding is done properly, with electrical testing, load checks and network assessment where required.
Areas Covered
Throughout Devon & Cornwall
Heatmiser services are provided across Devon, including:
Kingsbridge
Salcombe
Totnes
Bigbury-on-Sea
South Hams
Wider Devon and Cornwall
Local work is prioritised, with free consultations offered before any commitment.
Heatmiser & Underfloor Heating Specialists
Heatmiser is particularly popular for underfloor heating, but underfloor systems are also where the biggest problems appear.
Paul specialises in:
Multi-zone UFH systems
Economy 7 and mixed tariff setups
High-load UFH circuits and safe contactor control
Where needed, wireless Heatmiser thermostats and receivers are used to avoid unnecessary rewiring while still ensuring safe and compliant operation. Systems are balanced, tested and programmed properly so they actually work as intended.
Heatmiser, Heat Pups & Future-Ready Systems
Many homes now have or are planning:
Air source or ground source heat pumps
Solar PV and battery storage
EV chargers
Full electrical upgrades or rewires
While Paul does not install heat pumps themselves, he regularly integrates Heatmiser controls with these systems. This is something many heating installers cannot do.
Each Heatmiser installation is assessed not just for today, but for what the property may need in the future. Electrical capacity, phase supply and network reliability are all considered so systems do not need ripping out and starting again later.
Heatmiser & Home Network Problems
A huge number of Heatmiser issues are actually network issues.
In Devon and Cornwall, this is common due to:
Rural locations
Thick stone walls
Poor WiFi coverage
Holiday homes with unreliable internet
Unlike most installers, Heritage Electrical Automation designs and installs the home network as well. This includes wired networks, WiFi upgrades and Starlink installations where required. Heatmiser systems rely on a stable network to work properly and this is often the missing piece.
Your Heatmiser Experts
Why Choose Heritage Electrical Automation For Heatmiser in Devon
As recognised leaders in the installation and optimisation of Heatmiser products, we have a wealth of experience and technical knowledge that sets us apart. In fact, we get many enquiries from homeowners and installers who have already tried and failed. We’re often the only local experts that can fix and optimise Heatmiser systems effectively and reliably.
NICEIC Approved Contractor
All work is carried out to current UK electrical regulations and independently assessed, giving you confidence that your system is safe, compliant and professionally installed.
Fully Insured & Fully Qualified
You’re protected from start to finish, with work carried out by a fully qualified electrician who understands both heating systems and smart technology.
Over 20 Years Electrical Experience
Complex heating and control systems rely on solid electrical foundations, and decades of hands-on experience make the difference when things go wrong.
15+ Years Smart Home Experience
Smart heating is not new technology here. Systems are designed, installed and fixed with a deep understanding of how smart controls actually behave in real homes.
Heatmiser Specialist – Installation & Repair
Heatmiser systems are diagnosed properly, not guessed at. Faults are traced, poor installs corrected and systems optimised so they finally work as intended.
Expertise in Underfloor Heating & High-Load Systems
Electric and water-based underfloor heating systems are handled safely, with proper load management, contactor control and long-term reliability in mind.
Heatmiser FAQs
Yes, Heatmiser is highly regarded for its reliability, ease of use, and advanced features. It offers excellent control over home heating systems, providing both comfort and energy efficiency. Plus Heatmiser Neo Plugs allow you to turn almost anything into a clever automated devices. From Washing machines, radios, spinkers and more. The problem is, there aren’t a lot of installers or engineers that are able to connect and optimsie Heatmiser so that it work correctly. We are experts at resolving issues.
Yes. Paul, lives in Devon and therefore local work across Devon is prioritised wherever possible, particularly in areas such as Kingsbridge, Salcombe and the South Hams. Being based in Devon means quicker response times, better availability and a deeper understanding of the types of properties and systems commonly found in the area.
Response times depend on the type of work and current workload, but local Devon jobs are prioritised over national enquiries. For urgent Heatmiser faults or systems that are completely offline, every effort is made to attend as quickly as possible, especially where heating or hot water is affected.
Yes. While Devon-based work is prioritised, Heatmiser installation, repair and upgrades are also carried out across Cornwall. This often includes larger or more complex systems where specialist knowledge is required.
The process is straightforward and transparent:
Initial consultation – usually via WhatsApp or phone to understand the issue
Assessment – reviewing the existing Heatmiser setup, wiring, loads and network reliability
Clear recommendations – explaining what is wrong and the best way to fix or upgrade it
Quotation – provided before any work starts
Installation or repair – carried out safely, tested and fully programmed
This approach avoids guesswork and ensures the system works properly long-term.
Yes. In fact, most work involves repairing or improving existing Heatmiser installations that were poorly designed or incorrectly installed. This includes unsafe wiring, unreliable wireless connections, incorrect programming and systems that were never set up to match the property.
Yes. Heatmiser is very popular in holiday homes and second homes across Devon and the South Hams. Systems are often set up for remote access, scheduling and frost protection, allowing owners to monitor and control heating while away. Reliability is especially important in these properties and is a key focus of all work carried out.
Our Reputation Precedes Us
WHAT OUR CLIENTS SAY
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