Full Heating System Installations & Boiler Upgrades
Looking to modernise your heating or install a brand new system?
At K Marsh Plumbing & Heating Ltd, we handle full central heating installations, boiler upgrades, and system conversions across the UK.
We work on everything from old system swaps to full house renovations — all carried out to the highest standard by Gas Safe registered engineers.
What we offer
We install trusted brands like Viessmann, Worcester Bosch, Vaillant, and Ideal.
- Full system design & upgrades
- Combination boiler system boiler & open vented boilers.
- Radiator installs (standard or designer)
- Pipework reconfiguration
- Smart controls (Hive, Nest, Tado)
- Powerflushing for better circulation
Why Upgrade Your Boiler?
Upgrading your boiler can help you:
- Save on energy bills with modern A-rated efficiency
- Enjoy more consistent heating & hot water
- Reduce your carbon footprint
- Get a quieter, more reliable system
- Add value to your property
- Benefit from up to 10–12 year warranties
Signs It’s Time to Upgrade
Not sure if it’s time to replace your system? Here are some common signs:
- Your boiler is over 10 years old
- Frequent breakdowns or leaks
- Slow-heating radiators
- Low or inconsistent hot water pressure
- Unusual noises (clunking, banging, kettling)
- You’ve got an old tank or back boiler setup
- Your energy bills are rising
Free Quotes & Honest Advice
We don’t do hard sales — just straightforward, experienced advice.
If your boiler’s on its last legs or your heating isn’t up to scratch, get in touch for a free, no-obligation quote.