Heating upgrades
Cut energy bills and restore circulation with smart wireless controls, MagnaClean filters, and powerflushing.
Lower your heating bills and enjoy effortless room-by-room temperature control with smart thermostats, thermostatic radiator valves, and magnetic system filters fitted cleanly by local experts.
Energy saving heating upgrades
Heating upgrades starting from £120
From smart wireless thermostats and room-by-room TRVs to magnetic filter protection and system powerflushing. Upgrades fitted individually or combined in one visit.
Upgrade options
You do not always need a brand new boiler to improve comfort. Targeted upgrades to your controls, filtration, and radiator valves deliver immediate efficiency gains with minimal disruption.
01
Fitted from £120
Control your heating from your phone with Google Nest, Hive or Tado. Set schedules, use geofencing, and cut energy waste by up to 15%.
02
Quoted on radiator count
Thermostatic radiator valves let you heat individual rooms independently. Heat the home office and living room without wasting gas on empty bedrooms.
03
Fitted from £295
An Adey MagnaClean or Fernox TF1 filter captures black iron oxide sludge before it damages your boiler pump and heat exchanger.
04
Starting from £499
Deep pressure cleaning that removes stubborn sludge, clears blocked radiator waterways, and restores full circulation across the house.
RESTORE HEAT FLOW
Cold radiator bottoms and noisy boilers are usually caused by black magnetite sludge. We test your water quality first to recommend the right treatment for your pipework—never pushing an expensive powerflush if a chemical clean is all you need.
The lighter clean
from £250
Cleaner is circulated through the system by your own pump and left to work, then drained and refilled with inhibitor. Right for lightly contaminated systems and as preparation before a new boiler.
The deep clean
from £499
A high-flow pump is connected to the system and each radiator is flushed in turn under pressure, with magnetic capture on the return. Right for heavy sludge, cold-at-the-bottom radiators and older systems.
We check the valves, system balance, pump, pressure and water condition first. Balancing or valve work is often the actual fix, and it costs a fraction of a flush. We'll tell you which yours is before quoting.
Protect & balance
Cleaning the water is step one. Adding high-grade inhibitor chemical, fitting a magnetic filter, and balancing radiator lockshields keeps your heating efficient for years to come.
01
Supplied & Fitted £295
An Adey MagnaClean or Fernox TF1 filter is fitted directly to your heating pipework to capture metallic sludge before it reaches critical parts.
02
Engineer visit from £120
Balancing precisely calibrates lockshield valves across your property so hot water is distributed evenly to every single room.
03
While on site £45
High-grade Sentinel or Fernox protector is added to the system water to prevent corrosion, scale build-up, and future black oxide sludge.
Smart heating controls
We supply and fit Google Nest, Hive, and smart thermostatic valves (TRVs) configured properly to your boiler, giving you pinpoint scheduling and automated energy savings.
01
Fitted labour from £120
Control heating and hot water schedules from your smartphone. Geofencing turns heat down when you leave home.
02
Quoted on radiator count: Free Survey
Smart TRVs let you schedule temperature room by room. We check your existing valve bodies and provide a fixed quote based on your radiator count.
03
Tailored: Free Survey
Independent motorised zone valves allowing separate thermostat control for downstairs living areas and upstairs bedrooms.
OUR UPGRADE PROCESS
We never recommend an expensive powerflush if a magnetic filter, TRVs, or a targeted chemical clean will fix the problem. Here is how we improve your system's efficiency.
Share your symptoms — whether that's cold radiators, noisy pipework, sluggish heating, high bills, or outdated manual thermostats.
We evaluate your system and recommend only what's genuinely needed — whether that's MagnaClean filtration, system balancing, smart controls, or a targeted flush.
Your upgrade is neatly installed, balanced for peak heat output, and explained in plain English — all backed by our 12-month labour guarantee.
Gas Safe registered heating engineers. Repairs, upgrades and installations handled properly, radiators balanced for even heat, clear fixed quotes before work begins, and a 12-month workmanship guarantee on our work.
VERIFIED LOCAL REVIEWS
Read verified 5-star Google reviews from West London homeowners we've helped cut energy bills, balance radiators, and upgrade heating controls.
“Finally a plumber we can trust. Works quickly, tidily, and at a really fair price. Have cancelled our British Gas contract!”
“I thank my lucky stars to have found Happy Heating! Adam was amazing, sorted our problem quickly, and left the place spotless.”
“Really helpful, great communication, understood urgency and worked at short notice for a fair price. So glad I chose Adam.”
“I am so relieved to have found Adam. Finding a good, reliable heating engineer in London is honestly like finding gold dust.”
“Had a boiler fault no one else could diagnose. Adam found the issue quickly and repaired it for a reasonable price. 10/10!”
“Great service from Adam and a very reasonable price. Friendly, punctual, and highly recommended!”
“Adam was incredibly professional. Carried out both of our Landlord CP12 gas certificates quickly and without hassle.”
“Adam is always friendly and professional. He does a great job every time on our annual boiler service. Highly recommend.”
AREAS WE COVER
One postcode, one form. Tell us where you are and we will confirm before you give us anything else.
Type your postcode in and the checker tells you straight away whether we cover your area. If we do, you fill in the service you need and the best time for us to call.
Enter your postcode below to confirm coverage. If you're in our West or North West London area, it unlocks the booking form right away.
No upfront payment. We only use your details to confirm your appointment.
Hover or focus an area to highlight it on the map.
FREQUENTLY ASKED QUESTIONS
Upgrading your existing heating system can cut up to 15% on energy bills and prevent costly breakdowns without replacing your boiler. Here is how our smart thermostats, room-by-room TRVs, MagnaClean filters, and powerflushes work.
A chemical flush adds high-grade cleansing chemicals to circulate through your system to dissolve light sediment. A powerflush connects a dedicated high-flow machine to dislodge heavy, compacted magnetite sludge from older radiators and pipework.
Yes. We supply, wire, and configure modern smart thermostats and smart thermostatic radiator valves (TRVs), allowing you to control room-by-room temperatures from your phone and cut wasted gas.
Fitted to your boiler return pipework, a magnetic filter traps black iron oxide sludge before it can reach and damage your heat exchanger or pump. Supplied and fitted from £295.
Yes. If your boiler is operating safely, upgrading smart controls, balancing radiator lockshields, and cleaning system water can restore heat flow and cut energy bills at a fraction of the cost of a new boiler.
Yes. All our installation labour comes with a 12-month guarantee, in addition to full manufacturer warranties on smart thermostats, magnetic filters, and radiator valves.
Resources & advice
Practical guides from The Happy Heating Co to help you understand common boiler, heating and gas safety issues before you book an engineer.
Related services
From scheduled maintenance to urgent repairs and energy-saving upgrades, explore our complete range of heating and plumbing services.
System Care
Radiator repairs, powerflushing and precision system balancing.
Full Upgrade
Pair your smart controls with an ultra-efficient A-rated boiler.
Annual Health
Ensure your boiler heat exchanger is clear and running at peak efficiency.
Peace of Mind
Inclusive annual servicing and discounted rates on all heating upgrades.