Fast & Reliable Hot Water Cylinder Repairs
At Pro Boiler Care Limited, we provide expert unvented cylinder repairs across Stevenage, restoring high-pressure hot water to homes with speed and precision. When these systems fail, they require a specific technical approach that only G3-qualified Gas Safe Registered engineers can legally provide.
Whether your system is suffering from a minor leak or a major fault diagnosis issue, our team is equipped to handle the unique demands of unvented hot water storage systems. We prioritize customer satisfaction by ensuring your home returns to full hot water performance as quickly as possible.
Why Choose Pro Boiler Care Limited in Stevenage
Gas Safe Registered
Every heating engineer on our team is fully qualified to work on high-pressure unvented water cylinders safely.
24 Hour Service
We offer priority emergency callouts for urgent issues like burst pipes or total hot water loss.
Local Stevenage Experts
Based locally, we understand the hard water challenges in Hertfordshire that often lead to limescale in hot water systems.
Upfront Fault Diagnosis
We provide a clear, honest quote before starting any plumbing repairs, with no hidden costs.
Specialist Equipment
We use advanced tools, from drain cameras for blockages to high-pressure water jets for system clearing.
Which? Trusted Traders
Our reputation is built on professional integrity and exceptional feedback from our local customers.
Gas Safe Registered
Every heating engineer on our team is fully qualified to work on high-pressure unvented water cylinders safely.
24 Hour Service
We offer priority emergency callouts for urgent issues like burst pipes or total hot water loss.
Local Stevenage Experts
Based locally, we understand the hard water challenges in Hertfordshire that often lead to limescale in hot water systems.
Upfront Fault Diagnosis
We provide a clear, honest quote before starting any plumbing repairs, with no hidden costs.
Specialist Equipment
We use advanced tools, from drain cameras for blockages to high-pressure water jets for system clearing.
Which? Trusted Traders
Our reputation is built on professional integrity and exceptional feedback from our local customers.
Common Unvented Cylinder Problems We Fix
Because unvented systems are sealed and pressurised, they do not have a header tank in the loft. Instead, they use complex expansion units and safety valves that require expert attention. Our gas fitters frequently resolve:
- Water Leaking from the Tundish: If you see water dripping into the plastic tun, it usually indicates a failure in the expansion vessel or the pressure relief valve.
- Loss of Hot Water Performance: This is often traced back to faulty immersion heaters or issues with the central heating boiler integration.
- Fluctuating Flow Rates: We check line strainers and pipe installation for debris that may be restricting your hot water supply.
- No Hot Water: A common issue caused by a failed thermostat, a fault code on the system boiler, or electrical component failure.
- Pressure Problems: If your water pressure has dropped, we inspect the pressure reducing valve to ensure your mains supply is reaching the cylinder correctly.
- Limescale Buildup: We install Water Softeners and perform descaling to combat the heavy mineral content found in Stevenage's water supply.
Emergency Cylinder Repairs in Stevenage
A faulty unvented cylinder is more than an inconvenience; it can be an emergency problem if pressure levels are not managed correctly. We provide 24 hour service for any urgent plumbing solutions you might need.
From kitchen plumbing issues to complex central heating installations & repairs, we ensure your home remains safe and efficient.
- Immediate response for leaking water or burst pipes
- Expert repair for all major cylinder brands.
- Comprehensive safety checks to ensure your system meets safety standards.
- Fault diagnosis for both gas and LPG boilers that power your unvented system.
How does it works?
Our 3-Step Process
Initial Assessment
Call our Stevenage office to describe your fault. We will dispatch a Gas Safe engineer for a rapid on-site evaluation.
Diagnosis & Quote
We perform a visual inspection and technical safety check to identify the root cause, providing a fixed-price quote for the repair.
Professional Resolution
Once approved, we carry out the repair using factory compliance standards and market-leading materials.
WHAT OUR CLIENT SAYS
- Rated 9.9/10 On Checkatrade
-
50+ 5
Google Reviews
- 100% Facebook Recommended
Posted on Andrew TomlinsonTrustindex verifies that the original source of the review is Google. Excellent work - messaged and organized a time same day. Quick and efficient fix.Posted on Matt banksTrustindex verifies that the original source of the review is Google. Quick and efficient, nice guy. Would recommendPosted on Jon AllworthTrustindex verifies that the original source of the review is Google. Booking the boiler service was easy due to Phil's clear communication. Very efficient, clean, professional and respectful. Phil was very helpful answering questions and providing essential information on our central heating system. Highly recommendedPosted on Ryo IshikawaTrustindex verifies that the original source of the review is Google. Professional, efficient and easy to work with. Phil is a fantastic gas engineer, I have used his services three times now and every time he has been great. Reasonable pricing with top end work. Would highly recommend.Posted on Katrina GatusTrustindex verifies that the original source of the review is Google. I contacted Pro Boiler Care to service our boiler and install a new thermostat and Phil replied promptly and got it booked really easily and quickly! Phils very thorough with his work, explained everything he was doing, what needed fixing and was very honest with pricing etc. Lovely guy ! Think we found our go to Boiler company 🤩 Cannot recommend Phil highly enough !Posted on Alex DuxburyTrustindex verifies that the original source of the review is Google. Incredibly fast service from booking to job date. Phil was an incredibly nice guy and finished the job very quickly with no mess afterwards. Even wore overshoes to protect the floor from having to walk around. 5* well deserved.Posted on Ben StylesTrustindex verifies that the original source of the review is Google. Very professional very polite and done a good job !Posted on Claudia MarjoramTrustindex verifies that the original source of the review is Google. Phil at Pro Boiler Care was excellent from start to finish. He was professional, punctual, and clearly very knowledgeable. He explained everything in a way that was easy to understand, worked efficiently.
Preventing Future Breakdowns
The best way to avoid expensive emergency boiler repair or cylinder replacement is through an annual service. In Stevenage, where hard water is a constant factor, regular maintenance is vital to prevent the “silent” failure of safety components. An annual check-up includes:
- Safety Check: Testing all pressure relief valves and expansion units to prevent over-pressurisation.
- Efficiency Review: Checking your thermostatic radiator valve settings and magnaclean magnetic filter to reduce energy bills.
- Component Inspection: Verifying the health of immersion heaters and internal thermostats.
- Certification: We provide Landlord Gas Certificates and CP12 certificates for local property owners to ensure full legal compliance.
Pro Boiler Care Limited is dedicated to providing Stevenage residents with the highest standard of gas heating & plumbing solutions.
Book Your Unvented Cylinder Repair in Stevenage Today
Don’t let a failing cylinder increase your heating costs or risk your home’s safety. Pro Boiler Care Limited is the certified team you can trust for all unvented water cylinders repairs and maintenance.
Contact us now for a same-day fault diagnosis or to find out more about our long-term care plans.
Ask Us Anything!
FREQUENTLY
ASKED QUESTIONS
Why is my unvented cylinder making a loud vibrating noise?
This is often caused by air pockets or “water hammer” in the pipe installation. It can also suggest that the internal air bubble in your cylinder needs to be recharged.
How do I know if my expansion vessel has failed?
If your pressure gauge shows massive swings when the water is heating up, or if water is constantly dripping from the pressure relief valve, the expansion vessel is likely the culprit.
Can you provide Landlord Gas Certificates in Stevenage?
Yes, we are fully authorized to carry out annual inspections and issue Landlord Gas Certificates for both gas systems and unvented hot water cylinders.
What should I do if I smell gas near my cylinder?
Evacuate the area, turn off your gas supply at the meter, and call our emergency line immediately. Gas leaks require an urgent response from a Gas Safe Registered professional.