Brett Martin is a leading UK manufacturer of specialist plastic building products, widely used across residential, commercial and industrial construction projects. Established in 1958, the company has built a strong reputation for delivering high-performance solutions that combine durability, innovation and ease of installation.
The range includes rooflights, plastic sheets, rainwater systems and plumbing and drainage products, all designed to meet the demands of modern building standards. Manufactured using advanced production techniques and quality-controlled processes, Brett Martin products provide reliable performance across a wide range of applications.
Trusted by contractors, builders and specifiers, Brett Martin offers practical, installer-friendly solutions that deliver long-term performance, weather resistance and compliance with industry standards across both domestic and large-scale projects.
The Brett Martin Cascade Deepstyle 115mm Running Outlet in Black is a cast iron effect PVCu gutter fitting designed to connect Deepstyle gutter runs to rainwater downpipes.
The Brett Martin Cascade Deepstyle 115mm Internal Stopend in Black is a cast iron effect PVCu fitting designed to seal the internal end of Deepstyle gutter runs.
The Brett Martin Cascade Deepstyle 115mm External Stopend in Black is a cast iron effect PVCu gutter fitting designed to close the outer end of Deepstyle gutter runs.
The Brett Martin Cascade Deepstyle 115mm 90° Angle in Black is a cast iron effect PVCu corner fitting designed to allow gutter systems to turn neatly around building corners.
The Brett Martin Cascade Deepstyle 115mm 135° Angle in Black is a cast iron effect PVCu gutter fitting designed to navigate angled building corners in Deepstyle rainwater systems.
The Brett Martin Cascade Square 65mm Downpipe Lug Fixing Pack in Black provides the essential fixings required to securely install Cascade square downpipe systems, featuring screws and wall plugs designed for reliable pipe support.
The Brett Martin Cascade Square 65mm Downpipe 5mm Spacer in Black is designed to provide additional clearance between Cascade square downpipes and wall surfaces when installing alongside cast iron style pipework.
The Brett Martin Cascade Round 68mm Downpipe 1.8m Socketed Pipe with Lugs in Black is a cast iron effect PVCu downpipe designed to replicate traditional cast iron rainwater systems while offering lightweight durability.
The Brett Martin Cascade Round 68mm Downpipe 2.5m Socketed Pipe with Lugs in Black is a cast iron effect PVCu rainwater pipe designed for traditional style roof drainage systems.
The Brett Martin Cascade Round 68mm Downpipe Pipe Coupler with Lugs in Black is a cast iron effect PVCu fitting designed to securely join two sections of Cascade round downpipe while allowing direct wall fixing for additional support.
The Brett Martin Cascade Round 68mm Downpipe Plain Coupler in Black is a cast iron effect PVCu fitting used to join two sections of Cascade round downpipe.
The Brett Martin Cascade Round 68mm Downpipe 75mm Offset in Black is a cast iron effect PVCu offset fitting designed to adjust the position of Cascade downpipe systems.
The Brett Martin Cascade Round 68mm Downpipe 115mm Offset in Black is a cast iron effect PVCu fitting designed to adjust the position of downpipe runs in Cascade rainwater systems.
The Brett Martin Cascade Round 68mm Downpipe 150mm Offset in Black is a cast iron effect PVCu fitting designed to reposition Cascade round downpipes around architectural features or wall projections.
The Brett Martin Cascade Round 68mm Downpipe 230mm Offset in Black is a cast iron effect PVCu rainwater fitting designed to extend the distance between downpipes and the building wall.
The Brett Martin Cascade Round 68mm Downpipe 305mm Offset in Black is a cast iron effect PVCu fitting designed to provide extended adjustment for downpipe alignment.
The Brett Martin Cascade Round 68mm Downpipe 380mm Offset in Black is a cast iron effect PVCu fitting designed for large offset adjustments in rainwater downpipe installations.
The Brett Martin Cascade Round 68mm Downpipe 92.5° Spigot Bend in Black is a cast iron effect PVCu fitting designed to change the direction of Cascade downpipe systems.
The Brett Martin Cascade Round 68mm Downpipe 135° Branch in Black is a cast iron effect PVCu fitting designed to connect an additional downpipe into an existing Cascade rainwater system.
The Brett Martin Cascade Round 68mm Downpipe Shoe with Lugs in Black is a cast iron effect PVCu fitting designed to direct rainwater from the downpipe into ground drainage or soakaway systems.