Whether you’re installing a new system, upgrading old wiring, or fixing a fault, our skilled engineers endure every appointment with care and precision. We know how important reliable heating is, so we make sure everything works exactly as it should - from your boiler to your smart controls.
And when the job’s done, we don’t just leave - we walk you through everything, explaining clearly and offering simple advice to keep your system running at its best for years to come.
Correct wiring is essential for safe and reliable heating control. London homeowners choose PMD Plumbers because we deliver careful, professional electrical work that supports efficient heating operation.
We work neatly and methodically, ensuring your home is treated with care while your heating wiring is completed correctly and safely.
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Faulty wiring often causes heating controls to fail, boilers to switch on inconsistently or thermostats to stop responding. Loose connections, ageing cables, incorrect installations or worn components can also lead to system shutdowns or unreliable temperature control.
Our service identifies these issues by checking control wiring, programmer connections, thermostats and power supplies. We repair damaged wiring, replace unsafe components and ensure everything communicates properly. This helps restore consistent heating performance while reducing the risk of electrical faults or future breakdowns.
We follow a clear and structured process to ensure safe and effective results:
We review your heating controls, wiring layout and current system behaviour.
Our engineers test circuits, connections and control units to pinpoint the problem.
You’ll receive a clear breakdown of the issue and recommended solution.
We complete repairs, rewiring, servicing or upgrades as required.
We test the heating controls and wiring before leaving and stand by our work.
Our approach ensures reliable performance with minimal disruption to your home.
Safe heating wiring doesn’t need to be costly. At PMD Plumbers, we provide fair and upfront pricing for wiring repairs, upgrades and routine servicing.
Regular checks help prevent control failures, improve system responsiveness and extend component lifespan. Whether you need a quick wiring fix or planned maintenance, our solutions are designed to support long-term reliability and safe operation.
Stable controls. Safe wiring. Dependable heating.
Honest advice, skilled engineers, and clear pricing - all backed by our satisfaction guarantee.
From new installs to reliable repairs, PMD Plumbers keep your central heating wiring safe, connected, and running efficiently.
Yes. Periodic checks help detect loose connections, wear and potential safety issues early.
Most wiring jobs are completed within one hour, depending on complexity.
Yes. We upgrade outdated wiring to improve safety and compatibility with modern controls.
Yes. We check all connected controls to ensure proper communication and function.
Yes. Incorrect wiring can cause boilers to cycle incorrectly or fail to respond to controls.
Gas Safe registered engineers covering Harrow, London and surrounding areas. Free quotes, fair prices, 24/7 emergency cover.
Based in Harrow, PMD Plumbers serves homes and businesses in Harrow, Pinner, Wembley, Stanmore, Northwood, Ruislip, Watford and Bushey. Tell us your postcode and the work you need so we can confirm availability for your address.
Check our service areas and postcodes · Explore our plumbing and heating services · Contact our Harrow team