WELCOME TO THERMOSILL
Specialists in High Density Oversill & Warm Windowsill
Showroom located at Unit 2 IDA Business Estate, Killarney, V93 XK36
Call 087 063 8966
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Door Canopies & Sills
Enhance your property with our specialist overhead door canopies, made from zinc and advanced composite materials that are up to four times more durable than traditional fibreglass.
Our certified canopies offer easy installation in as little as 20 minutes, making them ideal for both new builds and housing developments. Designed for speed, strength, and style, they suit masonry, ICF, and timber frame structures and come with galvanised steel brackets for quick, secure fitting. Efficiency, reliability, and visual appeal are at the core, with every unit ready for rapid dispatch directly from our factory to your site.
Upgrade your window protection with Thermo Sill — the A-rated windowsill and insulated oversill solution. Thermo Sills are 100% moisture proof, impact resistant while being eight times lighter than concrete sills, and they eliminate cold bridging and heat loss. Installation is quick and easy, providing long-lasting performance with enhanced energy efficiency for your project.
Call UsOur Services
False Chimney Cappings
Our false chimney Cappings have become very popular over the past few years due to the change in building regulations as most houses are now using air to water heating systems and are not putting in actual chimneys.
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Decorative Half Columns & Pilasters
We manufacture an extensive range of columns and pilasters with different designs for Georgian style houses to modern houses. These are non structural and are lightweight and easy to install.
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Window Sills
Our Insulated Warm window Sills eliminates cold bridging and offers the highest U value rating. Lightweight / quick and easy installation.
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Quoin Stones
Our Quoin stones are a great cost effective way of decorating the corner of an old building or new build for a fraction of the price of concrete quoins or plastered quoins.
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Soffit Blocks
Our soffit blocks are most popular in new Georgian houses and Victorian style houses and can again be easily fitted by any tradesman as they are lightweight and just require our flexible adhesive for fixing.
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Border / Mid Bands
Our Border / Mid Bands come in many different styles and sizes and are very popular as this reduces labour costs and material costs for most developers.
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Parapet Mouldings
Our Parapet / Porch mouldings are becoming ever so popular as they can easily and quickly be installed, as they are 90% lighter than a concrete mould and are a fraction of the cost.
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Door Surrounds
We stock several types of door surrounds to suit all clients requirements and have built up a vast collection over the years. We can design any arched door surround to exact detail.
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Window Surrounds
We stock over 100 different styles of window surrounds with our most popular on the website from a 5″ Georgian style to Modern styles to suit all new and old builds.
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Pillar Cappings
Our pillar cappings are designed to add a refined finish to any pillar structure, blending aesthetics with functionality. Exceptionally durable, lightweight, and maintenance-free.
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Moulding Options
EST. 2001
Proven quality. Service. And experience.
WE HAVE CURVES
Any profile can be arched with controlled precision.
AUTHENTIC FINISHES
Choose between genuine cement or plaster options.
Some of Our Projects
Clients Testimonial
“As Munster Coving we use all the Thermosill products on our projects as Adobe Munster Eyre Square Gouts, and the Rez Hotel in Cork. Highly recommend these guys!”
“We use Thermosill cornices, bands, surrounds, and window reveals for all our new builds and EOP houses. We recommend this company.”
“I’ve used the products at Thermosill for the last five years and the quality is second to none.”