Consumer Reports puts replacement windows to the test

Installing new windows can offer many benefits. They can make your home less drafty and more attractive, they're easier to clean, and some come pre-painted.

However, putting in new windows just to save on your energy bills isn't a good reason.

"Sure, new windows could lower your energy bills by as much as 15 percent, but you're going to spend $10,000-$20,000 buying and installing those new windows. So it could be decades before you recoup the cost," said Dan DiClerico, Consumer Reports.

With replacement windows, the most popular styles are double-hung and casement.

Consumer Reports tested both types.

In their lab, testers can see how dozens of windows stand up to the elements, like heavy, wind-driven rain.

Each test is performed in different climates - a mild 70-degrees and then at zero degrees Fahrenheit.

Consumer Reports found that higher prices don't always guarantee better performance.

They recommend the $300 Pella double-hung window. It's better at keeping out drafts than windows costing twice as much.

If you prefer a casement style window, all four that Consumer Reports tested performed well in the cold climate tests.

The least expensive - the vinyl American Craftsman by Anderson 70-Series for $260 at Home Depot.

Consumer Reports says you can keep replacement window costs down by skipping on the upgrades that don't affect performance.

For example - a wood grillwork looks nice but can add $150 to the cost of each window.

Also be sure to check before you clean those new windows with ammonia-based products.

Some manufactures don't recommend ammonia or alcohol-based cleaners because they can leave streaks or a film that can attract dust.

Instead use a vinegar solution on a soft microfiber cloth or a paper towel.