Why Is My Boiler Losing Pressure — and How Do I Fix It?
A boiler that keeps losing pressure is one of the most common calls we receive in London. Here is what causes it and what you can do before calling an engineer.
Read more →Gas, Heating and Electrical Tips from Pristine Gas Ltd
Gas Safe registered guidance for London homeowners and landlords
Our engineers Ralf and Matt share practical advice on boiler care, electrical safety, and heating efficiency for London homeowners and landlords. Gas Safe registered guidance you can trust.
How to Tell If You Need a Power Flush
Cold spots on radiators, a boiler that makes banging noises, and rising gas bills are all signs your central heating system may need a professional power flush.
Read more →What London Landlords Need to Know About Gas Safety in 2026
A CP12 Gas Safety Certificate is a legal requirement for every rented property with gas appliances. Here is what the law requires and what happens if you do not comply.
Read more →New articles published regularly. Subscribe by calling 07472 251465 and asking to be added to our update list.
About the Authors
Ralf is a Gas Safe Registered engineer with 20+ years of hands-on experience in boiler installation, repair, servicing, power flushing, and central heating across London. He writes about gas and heating topics on this blog.
Matt is a certified electrician qualified to the 18th Edition (BS 7671). He covers consumer unit replacement, electrical fault finding, rewiring, and emergency electrical call-outs. He contributes to the electrical safety articles on this blog.
Both engineers are based at Pristine Gas Ltd in Holborn, WC1N and cover all London postcodes. Call 07472 251465 to speak to them directly.
Need a gas engineer or electrician?
If something in one of our articles has raised a concern about your boiler, heating system, or electrics, call us directly — Ralf and Matt are available 24/7 for emergency call-outs and Monday to Sunday 8am–8pm for scheduled work.
No call-out fee between 8am and 8pm.
Browse by topic
Boiler Care
Pressure loss, strange noises, lockouts, pilot light issues, and when to call an engineer versus reset the boiler yourself. Practical guidance from Gas Safe registered engineer Ralf.
Central Heating
Cold radiators, power flushing, TRV issues, and central heating efficiency. Advice on getting the most from your heating system before and after a boiler replacement.
Landlord Compliance
CP12 Gas Safety Certificate requirements, what annual boiler servicing covers for rental properties, and the legal obligations under the Gas Safety (Installation and Use) Regulations 1998.
Got a question for our engineers?
Call Pristine Gas Ltd on 07472 251465. Gas Safe Registered. 18th Edition certified. Based in Holborn WC1N. Available 24/7 for emergencies.
No call-out fee 8am–8pm. 24/7 for emergencies.