DIY wet underfloor heating kits for retrofitting selected rooms. Warm feet guaranteed.

Wall heating kits for plaster systems. Comfortable indoor climate without intrusive radiators.

Drywall ceiling heating kits for retrofitting. Additional cooling function secures a perfect indoor all year round.

Radiant Heating Systems for your Home

Retrofit Low Profile Underfloor Heating » Feel Warm - Reduce Energy Costs

Want to upgrade your home with an underfloor heating but without removing the entire floor? FLEXIRO's low profile wet underfloor heating for retrofitting existing buildings can in many cases be installed on the existing floor surface thanks to its low, 17 mm construction height.

At the heart of all our underfloor heating, wall and ceiling heating kits is a 10 mm polyethylene pipe that can be laid flexibly in tight loops and thus ensures particularly even heat distribution. There is a choice between clip rail, knobbed mats and drywall systems to suit almost every spatial prerequisites. The installation directly below the surface enables a quick warm-up. The thin radiant heating kits are connected to the existing heating system via return temperature limiter and are individually controlled. Additionally, low supply temperature save energy costs.

Retrofit underfloor heating » Make the indoor climate at home to your project.

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The Special Features of FLEXIRO DIY Radiant Heating Systems

  • Easy and flexible to install
  • Detailed installation instructions
  • Connects to existing heating system
  • Uniform heat distribution
  • Low profile underfloor heating system with a minimal construction height of 17 mm
  • Individual room temperature control
  • Complete heating kits with matched components
  • Corrosion-free
  • More than a 1000 times proven

Retrofitting Underfloor Heating in Bathrooms » What you need to know

  • How do I calculate the heating surface?
  • What heat output is possible?
  • How do I protect the floor structure from splashing water?


We provide answers to the most important questions when retrofitting underfloor heating in bathrooms.

Shop Information

  • Free shipping within Germany from 40 euros basket value
  • Shipment to the UK, Austria, Switzerland and further EU Countries
  • Service hotline (weekdays 8 am - 4 pm) +49 30 4741 1433
  • Trusted Shops Buyer Protection
  • Payment by bank transfer, cash on delivery, immediate bank transfer and Paypal possible
  • Delivery in 3-10 days
  • Installation guides and videos
  • Sales since 2012
  • Top ratings

FLEXIRO meets the Trusted Shops Quality Criteria

  • Certified since 2013
  • 30 days buyer protection through Trusted Shops
  • more than 200 reviews