1015 W 18th St Costa Mesa, CA 92627 (949) 228-9823
Support your installations with thresholds, weatherstripping, and door sweeps.
Installation components are often overlooked, yet they play a critical role in performance and longevity. The right threshold, sweep, or shim ensures the finished product not only looks polished, but functions seamlessly for years to come. These aren’t just accessories—they’re part of the foundation for a successful build.
At CDM Hardware, we stock a comprehensive range of professional-grade solutions, from low-profile ADA-compliant sills to acoustic-rated gasketing. Each product is selected with long-term performance, compatibility, and ease of installation in mind. Our clients count on us to help identify materials that match both aesthetic goals and code requirements.
We routinely assist in selecting hardware for complex assemblies—double doors, outswing thresholds, or fire-rated openings. And we know that even a well-designed jamb won’t perform without proper sealing. Our team ensures all elements work together to reduce callbacks, meet performance specs, and elevate the build quality.
Door sweeps are simple devices with powerful effects. Installed at the base of a door, they close the final gap—keeping out drafts, dust, insects, and even sound. Their performance is especially important in exterior ap…
Gasketing enhances the performance of a door system without adding bulk or visual clutter. Properly installed, it creates a compression seal that can reduce sound transmission, increase thermal insulation, and support w…
Shims and blocking may never be seen, but they’re essential to the structure and success of every door, cabinet, and trim installation. Used to level, support, and distribute load, these hidden elements ensure everythin…
Sills are the front line of defense against moisture at any exterior door opening. A well-designed sill not only ensures water drains away from the building envelope, but also provides a secure foundation for the door f…
Thresholds do more than complete the look of a door—they’re the bridge between inside and out. Whether you’re dealing with a flush interior transition or an exterior application exposed to the elements, choosing the rig…
Weatherstripping is one of the simplest ways to improve energy efficiency and comfort in a space. It creates a tight seal around the perimeter of doors and windows, reducing heat loss, moisture intrusion, and ambient no…
