Standard Casement |
Flush Casement |
Heritage Flush Casement |
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Why choose Astraseal ? |
The format of choice for many projects , Alitherm 400 standard casement windows are available as fixed and tophung or side-hung options , to meet the needs of any application . |
Alitherm 400 flush casement windows use the same sash , transom and mullion profiles as standard casements and are made possible by selecting the flush window outer frame . |
The slim profiles and elegant lines of the Heritage flush casement make it an ideal solution for refurbishment projects , and as a modern , energy efficient replacement for tired u-PVC , steel and timber windows . |
Competitive prices , fast lead times |
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and Nationwide delivery service |
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24 hour quote return times and |
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dedicated trade support team |
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British supplier and manufacturer |
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with over 40 years experience |
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A wide range of specialist product
solutions and services
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The Alitherm 400 is
PAS24 approved
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Excellent weather and
thermal performance
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Significantly reduced
installation time
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