We know: All About Vinyl Windows

What are vinyl windows?

Window frames made from vinyl instead of wood or aluminum are increasingly popular for use in both new homes and as window replacements. They are easily available and can be custom-ordered because most manufacturers are regional.


Ordering windows to custom fit the window space you already have makes the work and expense of replacing windows much less.

What are the advantages of vinyl windows?

Vinyl windows:

  • are generally less expensive than other kinds of windows
  • are virtually maintenance-free
  • can be custom-made easily
  • are energy-efficient
  • are available in a wide range of styles, including simulated wood finishes
  • do not usually require painting

What are some signs that windows need replacing?

Drafts, excessive condensation, excessive frost, appearance and windows that will not open and close properly.

What about the glass in the windows?

The Office of Energy Efficiency and Renewable Energy recommends these certifications on vinyl windows to help ensure that both the glass and the vinyl are of good quality manufacture:

  • Look for the National Fenestration Rating Council (NFRC) label; it means the window's performance is certified.
  • Remember, the lower the U-value (a measure of heat flow), the better the insulation. In colder climates, a U-value of 0.35 or below is recommended. These windows have at least double glazing and low-e coating.

Look for the government's EnergyStar label. These windows are, on average, twice as efficient as windows manufactured a decade ago and can reduce your utility bills by as much as 15%.

Can I install new vinyl windows myself?

Getting the size of the window right and installing it properly are difficult and complicated tasks. Unless you have extensive experience and the right tools, it may be best to hire a contractor.


Some builder web sites recommend you get an installer who is factory-trained and works for the window company. That way, if anything goes wrong, you will probably have more leverage than with a sub-contractor or someone you hire independently.



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