Products - Glass Features

Window Styles | Glass Features | 55 Year Warranty

Full 1" triple glass packages will give your home the best insulation, comfort and sound proofing available today.

Warm edge non-conductive spacers keep the edges of the glass warm so they are much less likely to sweat under most conditions.

Heavy gauge extruded aluminum reinforcement is standard on all Milestone windows. This gives your window structural integrity to last for a lifetime of trouble-free use. Plastic-only windows would have to be extremely bulky and unsightly to achieve the same result.

Attractive narrow profiles with beautiful details like beveled edges will enhance the appearance of your home. Many replacement windows on the market are bulky, plain and unattractive giving an undesirable appearance.

- 977% better than single glass
- 385% better than clear double glass
- 203% better than industry standard
- Full 1" barrier
- Almost as good as a wall!

The future is here. When energy bills go through the roof, you won't regret that you invested a little more to get the best. The XL1000 glass option has a center of glass R value that is almost as good as the insulation in a typical wall. Milestone windows with XL1000 are simply one of the best investments that you can make in your home. Do it right the first time and you won't regret your decision.

The Energy Star label assure homeowners that they are investing in windows that meet minimum guidelines for energy efficiency.

The Milestone collection far exceeds these minimum requirements. The Milestone double-hung window equipped with XL-1000 glass is 43% better than the minimum requirement U-Factor in the northern region.

The National Fenestration Rating Council (NFRC) has developed a window energy rating system based on whole product performance. Products are independently tested and certified to carry the NFRC label which provides a reliable way to determine the thermal performance of the product.

The Milestone double-hung window with XL1000 series glass has an NFRC U-Factor of .19 (non-res).

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