Unvented & Vented Hot Water Cylinders in Chislehurst, Bromley & Surrounding Areas
Installation, replacement, servicing and repair of vented and unvented hot water cylinders, including expansion vessel recharging and hot water faults.
Unvented & Vented Hot Water Cylinders in Chislehurst, Bromley & Surrounding Areas
Whether you are located in Chislehurst, Bromley or the surrounding areas, OnTime CMS provides reliable hot water cylinder installations, servicing, and fault repairs across a wide range of leading manufacturers.
Key Capabilities & Standards
✓ Mains Pressure Performance
Deliver strong hot water flow to multiple bathrooms without requiring separate shower booster pumps.
✓ Space Saving & Tank Removal
Free up loft space where suitable by converting from traditional loft storage tanks to an unvented hot water cylinder.
✓ Safety Discharge & Expansion Vessels
Qualified to install, recharge, and test safety discharge pipework (tundish), temperature/pressure relief valves, and expansion vessels.
✓ Fast Re-Heating & High Efficiency
Modern stainless steel cylinders feature high-grade insulation and efficient heating coils to keep heat loss low.
Frequently Asked Questions
A vented cylinder relies on a cold water tank in your loft and gravity to generate pressure. An unvented cylinder connects directly to the incoming cold mains, delivering high-pressure hot water.
This usually indicates the internal air bubble or external expansion vessel requires recharging, or the temperature/pressure relief valve needs attention. Call us on 020 3633 1122 to book an inspection.
Yes, annual servicing checks the safety relief valves, tundish discharge, and expansion vessel charge.