Free tool
Savings calculator
Find out how much you could save with the OPTI-FENETRE program vs. a complete replacement of your doors and windows.
1How many openings do you have?
10
1
1
2What problems do you notice?
Why restore rather than replace?
The Vosthermos OPTI-FENETRE program lets you restore your doors and windows — sealed units, hardware, weatherstripping, caulking and screens — in a single package. You get the same result as a full replacement for a fraction of the price.