Plumber in London

Underfloor Heating Repairs in London

Is your underfloor heating system not warming up properly or showing cold patches? At Arcas Plumbing, we specialise in diagnosing and delivering fast, effective underfloor heating repairs in London. Whether it’s an electrical issue, low system pressure, or uneven heating, our experienced engineers in London will identify the fault and provide a reliable fix with minimal disruption. We work with both electric and water-based systems across all types of flooring—restoring comfort and performance to your home quickly and efficiently.

Common Underfloor Heating Problems We Fix

  • Cold spots or uneven heating
  • No heat output at all
  • Damaged heating cables or pipes
  • Low water pressure in hydronic systems
  • Thermostat or sensor malfunctions
  • Airlocks or flow issues
  • Leaks beneath flooring or screed

What’s Included in Our Underfloor Heating Repair Service?

We carry out a complete diagnosis and targeted repair for efficient, long-term results:


  • System inspection and fault-finding
  • Pressure and flow testing for water systems
  • Electrical resistance and continuity checks
  • Thermostat and control diagnostics
  • Pipework or cable repairs (where accessible)
  • Bleeding and balancing of water-fed systems
  • Post-repair system testing and advice


Whether your heating is patchy or has stopped working entirely, we’ll restore comfort and performance with expert care.

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FAQs

Can you repair both electric and water underfloor systems?

Yes, we work on both types of systems and can diagnose and repair most common faults on the same visit.

Is the flooring damaged during repairs?

In most cases, no. We use non-invasive diagnostic tools where possible. If flooring access is needed, we’ll discuss the best method with you first.

Why is part of my floor warm and part cold?

This is often due to airlocks, zone valve issues, or damage to part of the pipework or cable—our engineer will isolate and resolve the issue.

Do you offer emergency repairs?

Yes, especially in colder seasons. We aim to respond quickly and restore heating as soon as possible.

Still have a question?

We're here to answer your questions.

We serve London and the surrounding towns and commuter areas.

Enfield

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Croydon

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Newham

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Brent

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Ealing

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Barnet

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Wandsworth

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Hillingdon

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Kingston upon Thames

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Guildford

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Redbridge

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Tower Hamlets

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London

About Arcas Plumbing

A Team of Reliable Full-Service Plumbing Experts for Homes and Businesses Across London.


With over 15 years of experience delivering expert plumbing services across London, Arcas Plumbing is your trusted, family-run local business. From quick fixes to complex plumbing and heating issues, our skilled engineers provide honest advice, fast diagnostics, and reliable solutions—all at competitive prices.

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Arcas Plumbing in London

Have an Emergency?


Need help with plumbing or heating? Arcas Plumbing offers fast, affordable emergency services—just a call away.

For immediate assistance with plumbing emergencies in London, reach out to us:

Phone: 077 2365 1551 

Online Contact Form: Contact Us