Primary Pro insulation has been specifically developed for external heat pump pipework, providing a durable and professional solution for protecting pipe runs between the property and the heat pump.

Unlike traditional pipe lagging, Primary Pro insulation is designed to withstand the conditions faced by external heating pipework, including weather exposure, UV light and temperature changes. This helps installers maintain system efficiency while delivering a clean and professional finish.

Each length of insulation is protected with our unique weather and UV-resistant coating, allowing it to be easily cut or mitred on site to suit different pipe runs, angles, and external fittings such as isolation valves.

Primary Pro insulation can be installed through the fabric of the wall, ensuring the pipework remains fully insulated from the heat pump into the property. When used alongside Primary Pro Bond & Seal, the insulation system can be securely sealed to prevent moisture ingress and maintain long-term performance.

Designed with installers in mind, Primary Pro insulation is simple to cut, easy to install and compatible with a wide range of air source heat pump installations.

Key Features
• Designed specifically for external heat pump pipe insulation
• Durable weather and UV-resistant protective coating
• Easy to cut and mitre on site for different pipe runs
• Suitable for insulating valves and external fittings
• Helps maintain heat pump efficiency and system performance
• Designed to work with the full Primary Pro insulation system

Available Sizes
Primary Pro insulation is available for the following pipe sizes:

Primary Pro 22mm x 25mm Insulation
(23mm x 25mm ±1mm tolerance)

Primary Pro 28mm x 19mm Insulation
(29mm x 21mm ±1mm tolerance)

Primary Pro 35mm x 19mm Insulation
(36mm x 22mm ±1mm tolerance)

Primary Pro 42mm x 19mm Insulation
(43mm x 21mm ±1mm tolerance)

The 22mm insulation has a 25mm wall thickness, allowing installers to use the same clips and core bits as the 28mm x 19mm insulation, simplifying installation.

The 42mm insulation has been developed to accommodate 1¼" heat pump connections, and is available in 1 metre or 500mm lengths.

Primary Pro Bond & Seal is a specialist sealant designed to work with the Primary Pro insulation system, helping installers create strong, weather-resistant seals on external heat pump pipework.

Bond & Seal is used to seal insulation joints and pipe entry points where pipework passes through the fabric of a building. When applied correctly, it helps prevent moisture ingress, heat loss and weather exposure, ensuring the insulation system performs as intended.

The sealant can also be used to secure Primary Pro insulation or pre-insulated flexible pipes to the heat pump, helping maintain a durable seal even where vibration from the heat pump may occur.

Once cured, Bond & Seal remains flexible, allowing it to expand and contract with temperature changes and outdoor conditions. This flexibility helps maintain a reliable seal in environments where pipework is exposed to the elements.

Designed specifically for use with external heat pump pipe insulation, Bond & Seal plays an important role in creating a fully sealed and weather-resistant insulation system.

Key Features
• Designed for sealing external heat pump pipe insulation systems
• Helps prevent moisture ingress and heat loss
• Flexible once cured to accommodate heat pump vibration
• Expands and contracts with temperature changes
• Suitable for sealing insulation joints and pipe entry points
• Compatible with Primary Pro insulation and pre-insulated flexible pipework

Shelf Life & Storage
Primary Pro Bond & Seal has a shelf life of up to 2 years when unopened.
For best results, store between 5°C and 25°C and keep out of direct sunlight.

Installation
Bond & Seal should be applied generously to insulation joints and pipe entry points to create a strong, weather-resistant seal.

Watch the video below to see how easy it is to use Primary Pro Bond & Seal.

The Primary Pro Maintenance Coat is designed to help maintain the protective outer finish of Primary Pro external heat pump pipe insulation, ensuring long-term durability and a professional appearance.

Once Primary Pro insulation has been installed and sealed correctly, it should be inspected and maintained throughout the lifetime of the air source heat pump installation. The good news is that maintenance is simple and typically forms part of the routine annual service.

During the annual heat pump service, the engineer should check that the insulation and seals continue to protect the pipework from moisture ingress, UV exposure and weather conditions.

If any signs of wear or discolouration are visible, a fresh coat of Primary Pro Maintenance Coat can be applied to restore the protective finish.

Many professional installers also choose to apply a maintenance coat immediately after installation to remove any surface marks or brick dust and provide a smooth, consistent finish across the insulated pipework.

Key Features
• Helps maintain the protective finish of external heat pump pipe insulation
• Supports long-term protection against UV exposure and weathering
• Simple to apply during routine servicing or after installation
• Water-based formula for easy application and cleaning
• Compatible with both Primary Pro and Condensate Pro insulation systems

Updated Recoating Guidance
Based on over 8 years of ongoing life testing, our maintenance guidance has been updated to recommend recoating “as and when needed.”

Testing has shown that some installations, particularly those not exposed to direct south-facing sunlight, may not require recoating within the first five years.

For this reason, we recommend inspecting the insulation during the annual heat pump service and applying a maintenance coat only if signs of wear or discolouration are visible.

Available Sizes
Maintenance Coat 250ml – IG005
Maintenance Coat 1L – IG010

The Primary Pro Sleeve is designed to protect insulated pipework where it passes through the fabric of a building wall, helping prevent damage from debris, moisture or chemicals within mortar and cement.

When installing external heat pump pipe insulation, pipework passing through a wall must be properly protected and sealed to prevent heat loss, air drafts and moisture ingress.

Standard plastic pipe sleeves are often either too small or too large to accommodate insulated pipework. Primary Pro Sleeves have therefore been developed specifically to fit Primary Pro insulated pipework, providing a simple and reliable solution for wall penetrations.

The sleeve protects the insulation while allowing installers to create a secure and weatherproof seal around the pipe entry point when used with Primary Pro Bond & Seal.

Key Features
• Designed specifically for Primary Pro insulated pipework
• Protects insulation from cement debris, moisture and wall materials
• Helps prevent heat loss and air drafts through wall penetrations
• Works with Primary Pro Bond & Seal to create a secure seal
• Suitable for use with air source heat pump installations

Available Sizes
Primary Pro Sleeves are available for the following insulated pipe sizes:

Primary Pro Sleeve for 22mm / 28mm insulated pipework - PS028
Primarily designed for 28mm insulated pipework, this sleeve can also be used for 22mm Primary Pro insulation with minor trimming if required.

Primary Pro Sleeve for 35mm insulated pipework - PS035
Designed specifically for 35mm insulated pipework.

Installation
When installing insulated pipework through a wall:

- Drill a pilot hole through the wall and core through to the correct diameter.
- Apply Primary Pro Bond & Seal around the sleeve.
- Insert the sleeve into the wall opening and allow the sealant to cure.
- Once cured, pass the insulated pipework through the sleeve and seal around the insulation using Bond & Seal.

For an even neater finish and easier sealing, installers can also use Primary Pro Sealing Rings and the Primary Pro Grinder Head to prepare the wall surface.

Core Drill Sizes
• 78mm core drill for 22mm / 28mm insulated pipework
• 91mm core drill for 35mm insulated pipework

Designed as Part of the Primary Pro System
Primary Pro Sleeves work alongside other components within the Primary Pro installation system, including:

• Primary Pro Bond & Seal - to seal the pipe entry point
• Primary Pro Sealing Rings - to provide a neat external finish
• Primary Pro Grinder Head - to prepare uneven wall surfaces for sealing

Together, these products help installers create a fully sealed and weather-resistant pipe entry point for external heat pump pipework.

Primary Pro Pre-Made Elbows are designed to make insulating bends in external heat pump pipework quicker, easier and more consistent for installers.

Each elbow is manufactured using Primary Pro insulation. The insulation sections are professionally mitred, bonded and sealed together, creating a strong and secure bend that maintains the same insulation performance as standard lengths of Primary Pro insulation.

This allows installers to create neat and professional pipe bends without needing to cut and mitre insulation on site, helping to save installation time while maintaining a consistent finish.

Primary Pro Pre-Made Elbows are designed to work seamlessly with the Primary Pro insulation system, using Primary Pro Bond & Seal to complete the installation and ensure the joints remain fully sealed and weather resistant.

Key Features
• Manufactured using Primary Pro insulation
• Professionally mitred, bonded and sealed for a secure bend
• Reduces time spent cutting and mitring insulation on site
• Helps achieve a clean and professional finish around pipe bends
• Designed for external heat pump pipework installations

Available Sizes
Primary Pro Pre-Made Elbows are available in the following sizes:
Primary Pro 28mm Pre-Made Elbows - PPEO28
Primary Pro 35mm Pre-Made Elbows - PPEO35

When installing external heat pump pipework, it is essential that both the pipework and any external fittings are properly insulated and sealed. This not only helps maintain the efficiency of the heat pump system, but also protects external components from weather exposure and temperature changes.

Primary Pro worked directly with Intatec, a leading manufacturer of heat pump components, to develop dedicated insulation solutions for their external heat pump products.

Installers using Intaflex hoses and other Intatec fittings asked for a simple way to insulate components such as antifreeze valves and lever valves, ensuring that the entire external pipework system could be properly insulated and protected.

To solve this, Primary Pro developed pre-made insulation jackets designed specifically for Intatec antifreeze valves.

These jackets are manufactured using Primary Pro insulation and are designed to fit neatly around the valve, allowing installers to quickly insulate and seal external fittings while maintaining a professional finish.

Primary Pro pre-made jackets are particularly useful on site when time and weather conditions are not on the installer’s side, helping reduce installation time while ensuring the fittings remain protected.

Key Features
• Designed specifically for Intatec antifreeze valves
• Manufactured using Primary Pro insulation
• Helps protect external heat pump fittings from weather exposure
• Supports overall heat pump system efficiency
• Reduces time spent insulating valves on site
• Provides a clean and professional finish

Available Sizes
Primary Pro Insulation Jackets for Intatec Antifreeze Valves are available in the following sizes:

Primary Pro Pre-Made Insulation Jacket for Intatec 1″ / 28mm Antifreeze Valve - AS32
Primary Pro Pre-Made Insulation Jacket for Intatec 1¼″ / 35mm Antifreeze Valve - AS52

When installing external heat pump pipework, it is important that not only the pipework but also any external fittings are properly insulated and sealed. This helps maintain the efficiency of the heat pump system while protecting exposed components from weather conditions and temperature changes.

Primary Pro worked closely with Intatec, a leading manufacturer of heat pump components, to develop insulation solutions for their external heat pump products.

Installers fitting Intaflex hoses asked for a simple way to insulate other external fittings such as flat face lever valves, ensuring that the entire external pipework system could be fully insulated and protected.

To meet this need, Primary Pro developed pre-made insulation jackets specifically designed to fit Intatec flat face lever ball valves.

Manufactured using Primary Pro insulation, these jackets allow installers to quickly insulate external fittings on site while maintaining a neat and professional finish.

Primary Pro pre-made jackets are especially useful when time and weather conditions are not on the installer’s side, helping to reduce installation time while ensuring external fittings remain protected.

Key Features
• Designed specifically for Intatec flat face lever ball valves
• Manufactured using Primary Pro insulation
• Helps protect external heat pump fittings from weather exposure
• Supports overall heat pump system efficiency
• Reduces time spent insulating valves on site
• Provides a clean and professional finish

Available Sizes
Primary Pro Insulation Jackets for Intatec Flat Face Lever Valves are available in the following sizes:

Primary Pro Pre-Made Insulation Jacket for Intatec 1″ / 28mm Flat Face Lever Ball Valve - AS33
Primary Pro Pre-Made Insulation Jacket for Intatec 1 ¼″ / 35mm Flat Face Lever Ball Valve - AS53

When installing external heat pump pipework, insulated pipe runs must be properly supported to maintain system efficiency and protect the insulation.

Primary Pro pipework should be clipped around the outside of the insulation, rather than directly onto the pipework. This helps maintain the integrity of the insulation system and prevents damage that could reduce insulation performance over time.

Installing clips around the outside of the insulation also helps prevent moisture ingress, which could otherwise deteriorate the insulation from the inside and reduce its effectiveness.

Primary Pro Rubber Lined Clips have been selected specifically to work with Primary Pro insulation, providing secure support while protecting the insulation surface.

The rubber lining acts as a protective barrier between the metal clip and the insulation. This is particularly important in warm weather, as exposed metal clips can heat up in direct sunlight. The rubber lining helps prevent the clip from sticking to or damaging the insulation.

For external heat pump installations, it is recommended that insulated pipework is supported with one clip per metre of pipe run to ensure the pipework remains secure and properly aligned.

Using rubber lined clips helps installers create a secure, professional and long-lasting installation for external heat pump pipe insulation systems.

Key Features
• Designed for securing Primary Pro insulated pipework
• Installed around the outside of the insulation
• Helps maintain heat pump system efficiency
• Rubber lining protects insulation from metal contact
• Reduces risk of insulation damage in warm weather
• Provides secure support for external pipe installations

Available Sizes
Primary Pro Rubber Lined Clip for 22mm x 25mm / 28mm x 19mm Insulation - AS008
Primary Pro Rubber Lined Clip for 35mm x 19mm / 42mm x 19mm Insulation - AS018

The Primary Pro Easy Fit Back Plate has been designed to make installing pipe clips for external heat pump pipework faster, easier and safer for installers.

Traditional back plates require multiple drilling points and separate fixings for each clip. The Easy Fit Back Plate simplifies this process by allowing installers to secure two pipe clips using a single fixing point, significantly reducing installation time.

This design can make installation up to five times faster compared with standard back plates, which is particularly valuable when time and weather conditions are not on the installer’s side.

Reducing the number of drilling operations also improves safety when working at height, as installers spend less time on ladders or tower scaffolding.

The back plate spaces the pipe clips away from the wall, allowing air movement around the insulation in all seasons and temperatures. This helps maintain the performance of external heat pump pipe insulation and allows easier access for inspection, maintenance and recoating when required.

The Primary Pro Easy Fit Back Plate is designed to work with rubber lined pipe clips, helping installers create a secure and professional installation for external heat pump pipework.

Key Features
• Up to five times faster installation compared with standard back plates
• Supports two pipe clips with a single fixing point
• Reduces drilling and installation time
• Improves safety when working at height
• Spaces insulated pipework away from the wall for airflow
• Helps support external heat pump pipe insulation systems

Installation Guidance
For external pipework installations, insulated pipe runs should typically be supported with a clip approximately every metre to ensure the pipework remains secure and properly aligned.

Easy Fit Back Plates help simplify this process by reducing the number of drilling points required when installing pipe clips.

The Primary Pro Standard Back Plate is designed to provide a secure fixing point for supporting rubber lined pipe clips when installing external heat pump pipework.

This traditional mounting solution allows installers to securely fix pipe clips to the wall, ensuring insulated pipe runs remain properly supported and aligned.

Each back plate provides a fixing point for individual pipe clips, helping maintain the correct spacing between the insulated pipework and the wall. This spacing allows air to circulate around the insulation, helping maintain the performance of the external heat pump pipe insulation system.

Properly supporting insulated pipework also helps prevent movement within the pipe run, contributing to a neat and professional installation.

The Primary Pro Standard Back Plate uses an M10 BZP male fixing, providing a strong and reliable mounting solution for pipe clip installations.

Key Features
• Secure fixing point for rubber lined pipe clips
• Supports external heat pump pipework installations
• Helps maintain correct spacing between insulation and the wall
• Allows airflow around insulation to maintain performance
• Durable M10 BZP male fixing for secure installation

When installing external heat pump pipe insulation, creating a proper seal where the insulated pipework passes through the wall is just as important as insulating the pipework itself.

A well-sealed pipe entry point helps ensure the system remains efficient, weather-resistant and professionally finished.

Sealing the pipe entry point correctly provides three important benefits:

• Creates an airtight seal, helping prevent heat loss and cold air drafts
• Prevents insects or debris entering the cavity wall or property
• Stops moisture and damp penetrating the building fabric

Creating a neat, durable seal around pipework can sometimes be time-consuming, particularly when working on uneven surfaces such as stone, render or pebble-dashed walls.

Primary Pro Sealing Rings provide a simple solution. When used with Primary Pro Bond & Seal, they create a clean and professional seal around the insulated pipework where it exits the wall.

For the best results, sealing rings can also be used alongside the Primary Pro Grinder Head, which creates a small indentation in the wall surface. This allows the sealing ring to sit flush against the wall, producing a secure and energy-efficient seal while improving the overall finish of the installation.

This combination helps installers save time on site while achieving a neat, weatherproof and professional result.

Key Features
• Designed for sealing external heat pump pipe insulation through walls
• Creates an airtight and weather-resistant seal
• Helps prevent drafts, moisture ingress and insect entry
• Provides a clean and professional finish around pipe entry points
• Designed to work with Primary Pro Bond & Seal and Grinder Head

Available Sizes
Sealing Ring for 22mm & 28mm Insulation - AS35
(Pack of 10)

Sealing Ring for 35mm Insulation - AS36
(Pack of 10)

Primary Pro Straight Joint Covers provide additional protection for insulation joints when installing external heat pump pipe insulation.

Developed in response to feedback from installers, these covers offer an extra layer of durability and help maintain a secure seal where insulation sections meet.

Manufactured to work with the Primary Pro insulation system, joint covers are fitted over insulation joints after they have been sealed with Primary Pro Bond & Seal. Once installed, they help protect the joint from weather exposure while maintaining a neat and professional finish.

Joint covers are particularly useful in areas where pipework may experience movement due to temperature changes or expansion and contraction, providing additional support and protection for the insulation system.

They can also be used during annual maintenance inspections if installers wish to reinforce or protect existing insulation joints.

Key Features
• Provides additional protection for insulation joints
• Designed for external heat pump pipe insulation systems
• Works alongside Primary Pro Bond & Seal
• Helps protect joints from weather exposure
• Supports long-term durability of insulation installations
• Quick and easy to install on site

Typical Uses
• Installed on new insulation joints for additional protection
• Used during annual servicing or maintenance inspections
• Helps maintain a clean and professional finish

Available Sizes
Primary Pro 28mm Joint Cover - JC28
Primary Pro 35mm Joint Cover - JC35

Primary Pro Elbow Joint Covers provide additional protection for insulation joints on 90° bends and mitred elbows when installing external heat pump pipe insulation.

Developed in response to feedback from installers, these covers add an extra layer of protection to elbow joints where insulation sections meet and are sealed using Primary Pro Bond & Seal.

Once fitted, the covers help protect the joint from weather exposure and movement caused by temperature changes and expansion or contraction of pipework. This helps maintain the durability of the insulation system while keeping the installation looking neat and professional.

Elbow Joint Covers are designed to be quick and simple to install on site and can be used both on new installations and during annual servicing or maintenance inspections if additional protection is required.

Key Features
• Provides additional protection for elbow insulation joints
• Designed for external heat pump pipe insulation systems
• Works alongside Primary Pro Bond & Seal
• Helps protect joints from weather exposure
• Supports long-term durability of insulation installations
• Quick and easy to install on site

Typical Uses
• Installed on new elbow joints for additional protection
• Used during annual servicing or maintenance inspections
• Helps maintain a clean and professional finish

Available Sizes
Primary Pro 28mm Elbow Joint Cover - EJC28
Primary Pro 35mm Elbow Joint Cover - EJC35

While the black finish of Primary Pro insulation provides excellent UV and weather protection, some homeowners prefer the external pipework to blend more naturally with the appearance of their property.

Primary Pro Over Coat has been developed to allow installers to colour-match insulated pipework to the surrounding wall or building materials. This helps the installation look more discreet while maintaining the protection and performance of the insulation system.

The over coat can be applied directly to Primary Pro insulated pipework, helping the installation blend into brickwork, stonework or rendered surfaces.

This is particularly useful on visible external pipe runs, where homeowners may prefer a finish that complements the colour of their property rather than the standard black insulation.

Primary Pro Over Coat allows installers to deliver a neat, professional and visually sympathetic installation while maintaining the durability of the insulation system.

Key Features
• Allows insulation to blend with the colour of the property
• Ideal for visible external pipework installations
• Maintains the protection of Primary Pro insulation
• Helps achieve a clean and professional finish
• Simple to apply during installation or finishing

Available Colours
Primary Pro Brick Over Coat - Red Brick - PPOC01
Primary Pro Brick Over Coat - Stone - PPOC02
Primary Pro Brick Over Coat - White - PPOC03

External walls are often uneven or textured, particularly with materials such as stone, render or pebble-dashed finishes. This can make it difficult to create a clean and reliable seal around the pipework where it passes through the wall.

The Primary Pro Grinder Head solves this problem by grinding a flat surface into the wall, creating a small 4mm indentation around the pipe entry point. This indentation allows sealing materials to sit flush against the wall, making it much easier to achieve a secure and weatherproof seal.

The grinder head is commonly used when installing Primary Pro Sealing Rings, allowing the ring to sit neatly within the indentation for a clean, professional finish. It can also be used when sealing directly with Primary Pro Bond & Seal.

By preparing the wall surface correctly, the Primary Pro Grinder Head helps installers create a faster, neater and more energy-efficient installation while improving the overall appearance of the pipe entry point.

Key Features
• Designed to prepare walls for external heat pump pipe insulation installations
• Creates a 4mm indentation for a flush sealing surface
• Ideal for uneven surfaces such as stone, render and brick
• Works with Primary Pro Sealing Rings and Bond & Seal
• Helps create a secure and weather-resistant seal
• Improves the appearance of pipe entry points on external walls

Primary Pro Diamond Core Bits are designed to drill the correct hole size when installing insulated pipework through external walls during heat pump installations.

Using the correct core size ensures the hole is perfectly suited to fit Primary Pro Sleeves, allowing insulated pipework to pass through the wall while leaving the correct clearance for sealing.

Once the sleeve is installed, the pipe entry point can be sealed using Primary Pro Bond & Seal or finished with Primary Pro Sealing Rings, helping create a secure and weather-resistant seal.

The diamond cutting edge allows installers to drill cleanly through common wall materials such as brick, block and masonry, producing accurate openings for external heat pump pipe installations.

Key Features
• Designed for installing Primary Pro insulated pipework through walls
• Creates the correct hole size for Primary Pro Sleeves
• Diamond cutting edge suitable for brick, block and masonry
• Helps achieve a clean and accurate wall penetration
• Works alongside Primary Pro Sleeves, Bond & Seal and Sealing Rings

Available Sizes
78mm Diamond Core Bit - DC78
Used for installing the Primary Pro 22mm / 28mm Sleeve

91mm Diamond Core Bit - DC91
Used for installing the Primary Pro 35mm Sleeve

Condensate Pro insulation is designed to protect external condensate waste pipes, helping prevent freezing and damage to heating systems.

Condensate Pro was originally developed to protect the external condensate pipework from gas boilers, and over the years it has proven itself by protecting hundreds of thousands of installations across the UK.

Condensate Pro can also be used to insulate waste pipes from air source heat pumps, which can produce significant amounts of condensate water during defrost cycles.

If external waste pipework is not properly insulated, sealed and terminated, the condensate water can freeze in cold weather. This can lead to blockages and may cause the heating system to shut down.

Condensate Pro insulation helps prevent this by protecting external condensate pipework from freezing temperatures, moisture and UV exposure, helping maintain reliable system operation.

Manufactured with a durable outer coating, Condensate Pro insulation is moisture and UV resistant straight out of the box and can be easily sealed using Primary Pro Bond & Seal to create a secure and weather-resistant installation.

Key Features
• Designed to protect external condensate waste pipes
• Helps prevent freezing and blockages in cold weather
• Proven across hundreds of thousands of boiler installations
• Suitable for boiler condensate pipes and heat pump waste pipes
• Moisture and UV resistant outer coating
• Simple to seal using Primary Pro Bond & Seal

Product Specification
Condensate Pro 35mm x 13mm Insulation

Available as:
Condensate Pro 35mm x 13mm x 3 (Box of 3) - IG001
Condensate Pro 35mm x 13mm x 1m Length - AS111