Pipe Insulation

Learn more about pipe insulation

Pipe insulation is fitted around pipework to slow heat transfer and help reduce the risk of freezing, which could result in burst pipes. On hot water and heating lines it helps keep heat in the system. In cold environments or unheated roof spaces, proper lagging prevents standing water from freezing, expanding, and rupturing metal or plastic pipes. 

Typical uses

• Hot water pipe insulation for heating flow and return, cylinder connections and other runs where you want to reduce heat loss.

• Cold water pipe insulation for lofts, plant rooms and other unheated areas where freezing is a risk.

• External pipework when exposed to cold temperatures.

• Preformed pipe lagging where you want quicker fitting on straight runs.

How to choose the right pipe insulation

• Choose the internal bore to suit the pipe’s outside diameter, so the insulation fits snugly without gaps.

• Check the temperature rating against the service, especially on heating and boiler flow pipes.

• Match the product to the location, because internal pipework, loft spaces, plant rooms and exposed external runs all need different levels of protection.

• Compare materials against the job, because pipe insulation foam suits general hot and cold water use, while other products may be more suitable where higher temperatures matter.

• Check the thickness, because it affects how much heat loss the insulation can reduce.

• Confirm whether adhesive, tape or a vapour barrier is needed for the job.

• If you are unsure which thickness to select, speak to your local branch team before ordering.

Before you order

• Measure the pipe diameter and the straight lengths you need to cover.

• Count bends, tees, joints and valves, so you order enough product for the full run.

• Check access around clipped or boxed in pipework, because tight spaces can affect fitting.

• Allow for wastage and any fittings that need separate covering.

• Confirm whether the product is suitable for internal or external use.

• Check whether adhesive, tape or a vapour barrier is needed for the job.

Explore our range of pipe insulation

Shop pipe insulation at Travis Perkins and choose the format that suits the job, including foam pipe covers and wool pipe wrap in a range of sizes and lengths to suit the job. If you need help matching bore, thickness or product suitability, your local branch can help before you place the order. Use Click & Collect or create an account to manage repeat purchases and keep track of jobs.