How to Ensure Leak-Free Results with the Right Fittings

Selecting the Right Fittings

Not all fittings are created equal. Choosing the correct type ensures a secure, leak-free connection:

• Copper fittings: Perfect for hot and cold water lines; reliable when soldered or used with compression fittings.

• Plastic fittings (PVC, PB, PEX): Lightweight, corrosion-resistant, and easy to install.

• Brass fittings: Durable and ideal for both plumbing and gas systems.

Browse our full selection of fittings to find the best options for your project.

Inspect and Prepare Components

Proper preparation is key:

• Check pipes and fittings for damage or deformities.

• Clean all surfaces to remove debris or grease.

• Cut pipes squarely and remove burrs to ensure a tight seal.

Well-prepared components prevent leaks and save time on rework.

Use the Correct Joining Method

Different fittings require specific installation techniques:

• Compression fittings: A mechanical joining method that uses a compression nut and olive to create a tight seal between pipe and fitting, providing a reliable connection when assembled correctly.

• Push-fit fittings: A tool-free joining system that secures pipework by simply inserting the pipe into the fitting until it locks against the internal stop, creating a quick and secure connection.

• Soldered fittings: A traditional joining method that uses heat and solder to bond pipe and fitting together, forming a permanent and durable sealed joint.

• Threaded fittings: A screw-based connection method that joins pipes and components using male and female threads, typically sealed with PTFE tape or jointing compound to prevent leaks.

• Press fittings: A highly efficient alternative to traditional methods, press fittings create consistent, secure joints using specialist tooling, significantly reducing installation time while maintaining excellent reliability. Systems such as Mpress and Pegler Xpress are now widely used across modern plumbing and heating installations thanks to their speed and reliability.

For guidance, see our installation tips to make sure every connection is leak-free.

Test Your System

Testing ensures reliability:

• Pressurise the system and check all connections for drips.

• Allow time for the system to stabilise under operating conditions.

• Adjust or tighten fittings as needed before finishing work.

Regular testing prevents costly leaks and ensures your system works efficiently.

Trust Collister and Glover for Quality

Using high-quality fittings combined with proper installation guarantees long-lasting, leak-free results. At Collister and Glover, we offer expert advice and a wide selection of fittings for domestic, commercial, and industrial projects.

Explore our full range of fittings and plumbing products today and make every project leak-free.