If you’re dealing with a boiler that keeps losing pressure week after week, you're not alone. At Ring A Plumber, our expert Kensington plumbers get called out to fix this exact issue regularly. It’s one of the most common problems homeowners face—especially during colder months.
In this blog, we’ll explain why your boiler might be losing pressure, what signs to look for, and when to call in plumbers in Kensington you can trust.
What Does Boiler Pressure Loss Mean?
Your boiler operates under pressure to circulate hot water efficiently through your central heating system. When that pressure drops, your boiler may stop working properly or shut down altogether. If you’re having to top up your boiler pressure every few days or weekly, it’s a red flag that something needs fixing.
5 Common Reasons Boilers Lose Pressure
1. Leaks in the System
One of the most frequent causes of pressure loss is a leak—either from the boiler itself or somewhere in your heating system, like radiators or pipework. Even a small, hidden leak can lead to pressure loss over time.
What to do:
Look for damp patches under radiators, behind walls, or beneath the boiler. If you can’t find the leak, it’s time to call experienced plumbers in Kensington for a professional inspection.
2. Faulty Pressure Relief Valve
The pressure relief valve (PRV) is a safety component that releases pressure if it gets too high. If this valve becomes faulty or damaged, it might continuously leak water, causing pressure to drop.
3. Bleeding Radiators Too Often
Bleeding your radiators removes trapped air, but if done too frequently, it can reduce boiler pressure.
Top Tip: After bleeding radiators, always check the pressure gauge and repressurise your boiler if needed.
4. Expansion Vessel Issues
Inside your boiler, the expansion vessel helps regulate pressure as water heats and expands. If the internal diaphragm is damaged, it won’t absorb pressure properly, resulting in regular pressure drops.
5. Corrosion or Faulty Components
Over time, internal parts of the boiler may corrode, especially in older systems. This can lead to minor leaks or malfunctioning components—both of which impact pressure.
How Do You Know It’s Time to Call a Kensington Plumber?
If you're constantly topping up boiler pressure, don’t ignore it. It’s a symptom of a bigger problem that won’t go away on its own. Instead of guessing, book a visit with trusted Kensington plumbers who can identify the cause and carry out long-term repairs.
Why Choose Ring A Plumber in Kensington?
✅ Gas Safe Registered Engineers
✅ Same-Day Emergency Call-Outs in Kensington
✅ No Hidden Fees or Call-Out Charges
✅ 5-Star Rated Plumbing Company
Whether it’s a boiler issue, heating emergency, or general plumbing job, Ring A Plumber is the name Kensington residents trust.
Final Word
A boiler that keeps losing pressure isn’t just an inconvenience—it could be a sign of a leak, valve failure, or an ageing component. For fast, honest help from Kensington plumbers who know what they’re doing, give us a call today.
📍 Serving: Kensington, , Notting Hill, Bayswater, Hammersmith, and more
📞 07304 079488
📩 ringaplumber.office@gmail.com
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