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Pipe Insulation

Pipe insulation is a protective material fitted around pipes to reduce heat loss, prevent freezing, and improve energy efficiency. Also known as pipe lagging, it helps lower energy bills and protects plumbing systems all year round. In the UK, buying quality pipe insulation is one of the simplest and most cost-effective ways to improve home or business efficiency.


Self-Seal Armaflex Pipe Insulation

Armaflex Evo is flexible elastomeric foam with improved fire-retardant properties, low smoke generation, closed-cell insulation material structure and built-in Microban antimicrobial protection.

Knauf Thermo-tek Range

Knauf's Technical Mineral Wool Solutions, the Knauf Thermo-tek Range, comprise of a range of high performance insulation solutions developed specifically for the insulation requirements of HVAC.

Self Seal K-Flex ST/SK

K-Flex ST/SK is a Euroclass B S1 d0 closed cell nitrile rubber pipe insulation that is flexible, pre split and easy to install. It can be used to improve the energy efficiency of Heating and Hot Water Pipework.

Isopipe Plastic Coated

ISOPIPE TC is flexible elastomeric foam insulation with significantly high percentage of closed cells with protective UV resistant covering which is a special polymer external protection membrane


Kooltherm Pipe Insulation

Kooltherm is an insulation solution for pipework in building services and HVAC applications. It is one of the thinnest and most thermally efficient products commonly available for the insulation of pipework.

Climaflex Pipe Insulation

Climaflex pipe insulation is commonly used throughout the UK, and Europe, to insulate central heating pipework and as a pipe insulation in loft spaces to prevent freezing.

Tubolit PE Foam Pipe Insulation

Tubolit PE Foam Pipe Insulation from Armacell is the complete range of thermal, acoustic and protective insulation products for heating, domestic hot and cold water and drainage pipe installations.

HT/ArmaFlex High Temperature

HT/ArmaFlex is a highly flexible, closed-cell insulation material with resistance to UV radiation.

Suitable for High Temperatures up to 150°C


What Is Pipe Insulation?


Pipe insulation and lagging is a thermal barrier placed around hot and cold water pipes. It is made from materials such as polyethene foam, nitrile rubber, phenolic foam or mineral wool, all designed to keep heat where it belongs. For hot pipes, insulation reduces wasted energy, while for cold pipes, it prevents condensation and freezing during colder months.

By adding insulation, households and businesses can cut heating costs, extend the life of pipework, and avoid costly repairs from burst or damaged pipes.


Benefits of Pipe Lagging


Pipe lagging is more than just a covering. It plays an essential role in keeping homes and businesses running smoothly throughout the year, especially during harsh British winters. When temperatures drop, uninsulated pipes can freeze and burst, causing expensive damage. Insulation creates a protective barrier that reduces this risk and has other benefits too, which we have detailed below:

Energy Savings

Insulated pipes retain more heat, so boilers and heating systems use less energy. This reduces heating bills and quickly offsets the cost of installation. Pipe insulation also allows for consistent temperatures, meaning you won't need to adjust your central heating as often to stay cosy.

Winter Protection

British winters are unpredictable, and exposed pipes in lofts, garages, and outdoor spaces are vulnerable. Pipe insulation helps prevent freezing, offering peace of mind during cold snaps.

Condensation Control

Cold water pipes without lagging often attract condensation, which can lead to damp and mould. The right closed cell Pipe Insulation acts as a barrier, protecting surfaces and pipework.

Noise Reduction

Acoustic lagging reduces the sound of water rushing through pipes, a simple way to create a quieter home or workplace.

Simple Installation

Most insulation is pre-slit and slides over pipework easily. It can be cut to size and secured with tape, making it a quick DIY project or a time-saver for professionals.


Buy Pipe Insulation UK


If you are looking to buy pipe insulation in the UK, you will find a wide choice of sizes and materials to suit different pipe diameters and applications. Whether insulating central heating pipes, outdoor pipework, or plumbing in loft spaces, there are options available for every requirement.

As trusted pipe insulation suppliers, we stock a full range of products that are durable, easy to fit, and compliant with UK standards. Ordering online is simple, with fast delivery to homes and businesses nationwide.


Choosing the Right Pipe Insulation


Not all insulation is the same. The right choice depends on the pipework and its location:


Polyethene Foam

Lightweight and cost-effective, ideal for domestic pipework.

Nitrile Rubber

Moisture-resistant and suitable for hot or cold use.

Mineral Wool

High thermal performance with excellent fire resistance.

Thickness matters too. Thicker insulation offers better protection, especially in unheated or exposed areas. Our expert team can help you choose the right product for lasting results.

Phenolic Foam

Ultra high performance foam, unlike other insulations made by trapping inert gas for thermal conductivities as low as 0.025W/m.K. Supplied foil faced in 1m lengths.


Installation and Maintenance

Installing pipe insulation is straightforward. Pre-slit lengths simply slide onto pipes, and joints can be secured with pipe tape.

Once fitted, insulation requires little maintenance. Regular checks ensure it remains intact, and any damaged sections should be replaced promptly to maintain performance.


Get Quality Pipe Insulation from Trusted UK Suppliers


At Advanced Insulation Materials Ltd, we make it easy to buy pipe insulation in the UK with confidence. As established suppliers, we offer a wide range of products designed to improve energy efficiency and protect pipework from the challenges of winter.

We source from trusted manufacturers to guarantee quality and durability. From everyday foam lagging to specialist insulation, we provide solutions for every project.

When you choose us, you’ll benefit from:

  • Competitive prices on a full range of products
  • Expert advice on selecting the right materials
  • Fast UK-wide delivery
  • Additional options such as loft insulation and thermal pipe tapes

Whether you want to cut energy bills, protect against winter damage, or extend the life of your plumbing, our team is here to help. Order online today and get high-quality pipe insulation delivered straight to your door.

Frequently Asked Questions

What is the purpose of pipe insulation?+

It reduces heat loss, prevents freezing, and improves energy efficiency while also helping to cut condensation and noise.

Is pipe lagging the same as pipe insulation?+

Yes, pipe lagging is the UK term for pipe insulation. Both describe coverings designed to stabilise pipe temperatures.

Do I need to insulate pipes indoors?+

Yes. Pipes in lofts, basements, or garages can still freeze during winter, so insulation is recommended.

How do I choose the right size pipe insulation?+

Measure the pipe diameter and select insulation with the matching internal bore size.

Does pipe insulation save money?+

Yes, pipe insulation will reduce the amount spent on central heating and help to save money on your energy bills. You also won't be stung by high breakdown costs if your pipe freezes and bursts, or experiences corrosion.

How long does pipe insulation last? +

High-quality insulation can last for years. Check it regularly and replace any worn sections.

Can I install pipe insulation myself?+

Yes. Most products are designed for easy DIY fitting with minimal tools required. Professional installers can save time, though and ensure the insulation is fitted correctly.