The Smart Homeowner's Guide to Window Installation

It’s essential that windows are installed correctly, otherwise your home can suffer from heat loss, cracked joints, pest invasions or damage to the structure of your house.

When do I need to replace my windows?

Depending on the problem, you may need to install just the window glass or the whole frame too. You don’t need to install a new frame if the current one is in good condition, is square, and with the casing and trim in place.

You most likely need to replace windows if there’s frosty or foggy glass during the winter, or if you feel drafts coming through. Residential windows should be replaced every 25 years to get the full energy saving benefits.

How do I install windows?

This is a job requiring some heavy work and some knowledge of the terms used. It may be advisable to get a professional carpenter to do it for you.

For new windows, the basic steps are prepping the window opening, installing sill flashing, sealing and using flashing tape. Replacement windows should follow the same routine for effective weatherproofing.

What tools and materials do I need?

You will need a hammer, tape measure, caulk and caulk gun, knife, spirit level and a stapler. Also roofing nails, sill flashing, house wrap and tape, and flashing tape.

Protecting against the weather

If you live on the coast or near sports grounds, you may want to consider impact-resistant glass for your windows. It will cost extra but is more likely to survive a natural event like a hurricane or storm. It also reduces outside noise levels.