Central Heating & Underfloor Heating Repairs in Oxfordshire

Central Heating & Underfloor Heating Specialists

Plumbbob Limited are trusted central heating engineers across Oxford, Abingdon, Cumnor, Kidlington, Cowley, Headington, Didcot and the surrounding Oxfordshire villages. From failing pumps and noisy radiators to leaking underfloor heating manifolds, our Gas Safe registered engineers diagnose, repair and upgrade every part of a wet central heating system — quickly and tidily.

Whether a single radiator is cold or your whole system needs attention, we’ll explain the fault in plain English and give you a clear fixed price before any work begins.

Central Heating Services We Provide

  • Pump replacement or repair.
  • Motorised / zone valve replacement and repair.
  • Internal and external expansion vessel replacement and repair.
  • Filling loop repairs or replacement (internal and external).
  • Dripping or frozen condensate pipe repairs.
  • Hot water tank blockages cleared.
  • Thermostat faults on tanks, boilers and programmers.
  • Immersion element replacements and repairs.
  • Unvented cylinder element replacements and repairs.
  • Radiator checks, thermostatic valve (TRV) changes and bleeding.
  • Boiler repairs and replacement parts fitted alongside heating work.
  • Underfloor heating manifold, actuator and zone valve replacements.

Replacement of zone valve for Underfloor heating

Cleaning of central heating pump below

Signs Your Central Heating Needs Attention

  • Radiators cold at the bottom, top or not heating at all.
  • Banging, tapping or gurgling noises when the heating runs.
  • Boiler losing pressure or kettling.
  • Cold patches on underfloor heating zones.
  • Slow warm-up or uneven heat around the house.
  • Visible leaks from pumps, valves or pipework.

Left unattended, these faults usually get worse and can damage an otherwise healthy boiler. Book a diagnostic visit early and you’ll almost always save money.

Areas We Cover in Oxfordshire

  • Oxford
  • Abingdon
  • Cumnor
  • Kidlington
  • Cowley
  • Headington
  • Didcot
  • Plus surrounding Oxfordshire towns and villages.

Why Homeowners Choose Plumbbob

  • Gas Safe registered engineers — qualified for boiler and wider heating work.
  • Worcester Bosch accredited — specialist knowledge across all major system types.
  • Many years’ experience serving Oxfordshire homeowners.
  • Fixed written quotations — no surprises.
  • 24/7 emergency call-out across Oxfordshire.

Related services: boiler installation, boiler maintenance & repairs, power flushing and water cylinders.

Get a Free Central Heating Repair Quote

Call Plumbbob Limited on 01865 717734 or contact us online for a fast, honest diagnosis and a clear fixed price. We cover the whole of Oxfordshire with 24/7 emergency call-out.

New Immersion thermostat installed

Installation of new Radiator valves

A radiator cold at the bottom but warm at the top is a classic sign of sludge build-up — iron oxide and debris settling in the lower part of the panel. We can flush the radiator, fit a magnetic filter and, for systems badly affected, carry out a power flush.

Common causes include a leaking radiator or pipework, a failing expansion vessel or a faulty pressure relief valve. If you’re topping up more than once a month, it needs investigating. Call 01865 717734 and we’ll diagnose on-site.

Yes — we diagnose and repair wet underfloor heating systems including manifolds, actuators, zone valves, thermostats and circulation pumps. We can also balance and commission systems that have never run correctly.

Noisy pumps are often caused by trapped air or sludge rather than end-of-life failure. We’ll check first before recommending a replacement — saving you unnecessary cost.

Yes — 24/7 emergency call-out across Oxfordshire for no heating, leaks and urgent central heating faults.

We cover Oxford, Abingdon, Cumnor, Kidlington, Cowley, Headington, Didcot and the surrounding Oxfordshire towns and villages. Call 01865 717734 to confirm your postcode.