If you’re planning a new boiler installation in London, Surrey, or anywhere in England (April to August), it’s important to understand the latest Gas Safe and Part L regulations — especially changes introduced in June 2022.
At Certificates4UK Ltd, we’re fully Gas Safe registered and up to date with all compliance rules to ensure your boiler installation is safe, legal, and highly efficient.
June 2022 Gas Safe & Part L Changes – What You Need to Know
These are the main legal requirements for new or replacement boiler installations in England, effective from 15 June 2022:
1. Room-by-Room Heat Loss Calculation
Installers must calculate heat demand for each room to ensure the boiler is correctly sized and not oversized. This ensures your home runs efficiently and reduces fuel waste.
2. Flow Temperature Limited to 55°C
New full heating systems must be designed to operate at a maximum flow temperature of 55°C, to meet low-carbon and energy efficiency targets.
3. Magnetic Filter & Water Treatment – Now Mandatory
Your system must be:
• Flushed and cleaned
• Treated with a chemical inhibitor
• Fitted with an inline magnetic filter
This helps protect your boiler from sludge, rust, and internal damage — and is now a legal requirement under BS 7593:2019.
4. Thermostatic Controls & Heating Zones
• All radiators must have Thermostatic Radiator Valves (TRVs) (unless already controlled by a room thermostat).
• Homes over 150 m² must have two or more heating zones (for example, upstairs and downstairs).
5. A-Rated Boiler Efficiency
All boilers must be ErP A-rated (92% or higher), with the right controls to support efficient operation.
6. Documentation and Building Regulations Notification
All installations must be:
• Fully commissioned with a Benchmark checklist
• Registered with Gas Safe
• Supplied with a Building Regulations compliance certificate
Need a New Boiler Installation or Power Flush?
At Certificates4UK Ltd, we’ve installed and maintained hundreds of boilers across Surrey and London — and from April to August, we also provide boiler installation and power flush services across England.
We guarantee:
• 
Full Part L and Gas Safe compliance
• Competitive pricing
• Friendly, reliable service
• Free, no-obligation quote
Contact Us for a Free Quote Today
Whether you’re in Surrey, London, or anywhere in England this summer — get in touch with us for a free quote on a new boiler installation or system power flush:
+44 7869 520044
+44 7596 076700
Why Choose Certificates4UK Ltd?
We’ve delivered over 750 successful power flushes and countless boiler installations with 5-star service. Trust us to keep your home warm, energy-efficient, and compliant with all regulations.
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