The Smart Way to Heat Your Home

Annett Heating installs underfloor heating across Harrow and North West London, both wet systems connected to your boiler and electric systems for smaller areas like bathrooms. Rather than charging a fixed rate per square metre, we price the job by the number of days of labour involved, which usually works out fairer. We will survey the space and give you a clear quote based on the work required.

Types of Underfloor Heating

Wet Systems (Water-Based)

Warm water circulates through pipes beneath the floor. Best for new builds and larger areas.

  • Lower running costs
  • Works with heat pumps
  • Ideal for whole-house heating
  • Requires floor build-up

Electric Systems

Electric heating cables or mats beneath the floor. Ideal for single rooms or retrofits.

  • Easier to install
  • Minimal floor height increase
  • Great for bathrooms & kitchens
  • Quick heat-up time

Our Underfloor Heating Services

  • New Build Installation

    Complete underfloor heating design and installation for new construction projects.

  • Retrofit Installation

    Add underfloor heating to existing properties with low-profile systems.

  • Extension Heating

    Perfect heating solution for conservatories, extensions, and garden rooms.

  • Manifold Installation

    Professional manifold setup and zone configuration for optimal control.

  • Repairs & Maintenance

    Fault finding and repairs for existing underfloor heating systems.

Benefits of Underfloor Heating

Even heat distribution with no cold spots
Free up wall space - no radiators needed
Lower running temperatures = lower bills
Compatible with all floor types
Healthier - reduces dust circulation

Frequently Asked Questions

Our team installs both wet (water-based) and electric underfloor heating. Wet systems are our core work, connected to your boiler and more cost-effective to run long term. Electric (matrix) systems are fitted by the flooring and tiling specialist who works with us as part of our team, and suit smaller areas like bathrooms or kitchens. Whichever you need, you deal with us throughout.

Yes, it can. Wet systems are more involved to retrofit because the floor needs to be built up, so they are most practical during a renovation or extension. Electric systems are much easier for our team to add under tiles or engineered wood flooring with minimal disruption.

We price underfloor heating by the number of days of labour the job takes, rather than by the square metre. For example, if it takes three days to run the pipework for a wet system, we quote for those three days. This is usually fairer than a fixed per-square-metre rate. The exact cost depends on the size and layout of the space and the type of system, so we will survey the job and give you a clear quote based on the days involved.

A wet system connected to a modern condensing boiler is generally cheaper to run than traditional radiators, especially when combined with a smart thermostat. Electric systems cost more to run but are well suited to smaller, occasional-use areas. We can talk you through the running costs for your specific setup.

Gas Safe Register is the official, government-approved list of engineers who are legally allowed to work on gas appliances and installations in the UK. It replaced CORGI in 2009. Our engineers are Gas Safe registered, which matters whenever an underfloor heating installation connects to a gas boiler.

Yes, all our engineers are Gas Safe registered. You can verify us on the Gas Safe Register under registration number 562566.

We cover Harrow, Wembley, Pinner, Stanmore and Kenton as our core North West London area, plus Watford, St Albans, Hemel Hempstead, Luton and the surrounding areas.

Ready for Underfloor Heating?

Get in touch for a free consultation and quote.