Frequently Asked Questions

The following are some of the most frequently asked questions we have answered for customers purchasing windows for new home construction or when renovating.

Is there a benefit to buying windows made on Vancouver Island?

At Thermoproof we build our own sealed units using a double seal method. This means the sealed glass units are not transported to the island. Our second seal is designed to strengthen it's bond in moist weather, making it the perfect product for the west coast.

How do I choose between 'Nail-On' or 'Renovation' windows?

'Nail-On'' is the first choice for new construction but also used in some renovations. For example, if you were removing your windows and siding to replace both, then ‘Nail-On' windows would be a good choice. If you're replacing current wood, or aluminum windows then Renovation windows will be the most cost effective. Our dealers are able to remove your old windows and install new windows in a variety of applications - and usually without disturbing the exterior fascia of your house.

What should I use? Sliders, casement, awnings, or picture windows?

Each has their own design characteristics. Some homes use a combination (ie casement and picture) depending on the requirement of the room. Is the window opening to a view? Is circulation or fresh air a higher priority? Looking for a unique architectural element? Our approved dealers will help you make an informed decision.

What do I have to do for maintenance?

Fortunately Thermoproof windows, patio doors, and skylights are all vinyl so they are extremely durable and will maintain their strength and colour. They are virtually maintenance free, vinyl never needs painting, and will not pit, peel, rot, dry out or corrode.