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Underfloor Heating Pipe

Underfloor Heating Pipe for Installation of Wet Underfloor Heating

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Underfloor Heating Pipe : Durable, Flexible & Trusted by Installers

If you’re looking for high-quality underfloor heating pipe, you’ve come to the right place. At Underfloor Heating Supply Ltd, we stock premium-grade 12mm and 16mm pipe ideal for all wet underfloor heating systems. Whether you’re installing in a screeded, suspended, or retrofit floor, our underfloor heating pipe delivers long-lasting performance, ease of installation, and peace of mind. We also supply Microflex pipe (25mm and 32mm), perfect for external connections and district heating systems.

Why Choosing the Right Underfloor Heating Pipe Matters

Your underfloor heating system is only as reliable as the pipe you use. Our underfloor heating pipe is made from high-grade PERT with an EVOH oxygen barrier, designed to prevent corrosion and extend system life. Every coil we supply is flexible, pressure-tested, and built to withstand long-term thermal stress — giving both homeowners and installers full confidence.

Types of Underfloor Heating Pipe We Stock

We supply a carefully selected range of sizes to suit every project.

12mm & 16mm Pipe

Our 12mm and 16mm pipes are perfect for domestic and commercial underfloor heating installations. They’re ideal for:

  • Screeded floors
  • Retrofit systems
  • Suspended floor solutions

These pipes feature a smooth internal surface for optimal water flow and a multi-layer construction that resists kinking during installation. Whether you’re working with our Retrofit 20 Kit or a full-screed installation, these pipes provide a reliable solution.

Microflex Pipe: 25mm & 32mm Pre-Insulated Pipe

Our Microflex pipe range is ideal for outdoor underground use, such as connecting a heat source to a building. These pipes come in 25mm and 32mm sizes, insulated with closed-cell PE foam and covered in a tough corrugated sleeve for ground protection. They’re:

  • Resistant to water ingress and impact
  • Perfect for biomass, heat pumps, and district heating
  • Bends easily without joints, reducing risk of leaks

Explore our full range of Microflex pipes here.

Expert Guidance for Selecting the Right Pipe

Choosing between 12mm, 16mm, or Microflex pipe depends on your system type and layout.

  • 12mm pipe is best suited for tight spaces and low-profile retrofits.
  • 16mm pipe offers greater flow and heat output, making it ideal for large rooms or screeded floors.
  • Microflex pipe is designed for insulated external flow and return pipework between buildings or to heat interface units.

 

Still unsure? Our technical team is happy to advise.

Why Buy Underfloor Heating Pipe from Us?

With over 30 years of industry experience, we offer more than just products — we deliver trusted expertise.

  • Fast UK delivery from our central warehouse
  • Competitive trade pricing and multi-buy discounts
  • Dedicated support team with installation knowledge
  • Extensive stock available year-round

Our pipes integrate perfectly with our full range of underfloor heating kits, manifolds, and thermostats, making Underfloor Heating Supply Ltd your one-stop shop.

Ready to get started? Browse our full pipe range online or contact us for expert advice. All products are in stock and ready for fast delivery.

👉 Shop Underfloor Heating Pipe Now

Need Help or Advice?

Our team of experts are here to help with any queries - please call us on 01302 597 969 - send us an email or click the contact us icon:
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Our team specialists are happy to produce a custom quote based upon your individual needs - please call us on 01302 597 969 – send us an email or click the get a quote icon:
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