
SHEET METAL PRODUCTS / WINDOW SILL FLASHING
WINDOW SILL FLASHING
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Window sill flashings keep rainwater, melting snow, and other moisture away from building structures, preventing water from penetrating areas where it can cause serious damage over time.
Window sill flashings are commonly used below and above windows and on top of plinths to direct water away from exterior walls.
Add a Stylish Finish to Your Façade
Although the primary purpose of flashing profiles is to protect structures from moisture, a properly designed and manufactured window sill flashing is also an important visual element of the building façade.
When a building is finished with attractive, clean-lined sheet metal details in coordinated colours, it creates a professional appearance that inspires confidence and conveys quality.
Window Sill Flashings Tailored to Your Needs
PetterSteel has extensive experience and expertise in manufacturing window sill flashings. We can produce flashings precisely according to your dimensions and requirements in a wide range of colours.
We supply precision-made window sill flashings in all colours of the RR colour chart. We also keep selected RAL-coloured products available with factory-applied coatings.
You do not need to worry about coatings either. We can finish your window sill flashings with high-quality Pural BT, HIARC, and polyester coatings trusted by construction professionals.
CONTACT OUR SALES TEAM FOR MORE INFORMATION
+358 10 235 0290
Service Finished to the Highest Standard
Customer satisfaction is at the heart of everything we do. Ordering through our PetterNET online store is quick, easy, and efficient.
Our deliveries are fast, and the entire process is carefully documented from start to finish.
Your orders are stored in our system, allowing you to access and review them conveniently at any time—even directly from your construction site using your mobile phone.
Our knowledgeable and helpful experts are always available to assist you with any questions regarding our products or services. Feel free to get in touch!


