When is the right time to consider replacing your windows? That's a question I recently had to weigh, and luckily that decision turned out to be a good one in terms of energy savings.

For those weighing that decision themselves, Window World of Altoona, Pa. offers a list of questions to ask to help make a bright and clear decision on whether to replace one, all or any of their home windows.

1 . Should you DIY or hire a pro?

The correct window type, fit, and proper, professional installation can make or break a replacement window project. If you’re replacing wood or metal windows, this can require additional expertise and work. If you choose a professional, check the reputation of the company. Though there are many reputable window installation companies to choose from, you should be aware that there are disreputable ones as well. Look for a professional that backs their installation work with a warranty on labor and parts in addition to a product warranty.

2. How long do you plan to be living with your new windows?

While beauty, maintenance-freedom, and energy savings is a common consideration, remember that when selling your home, vinyl windows recoup an average of 78 percent of the initial investment according to Remodeling Magazine’s 2014 Cost vs. Value Report, and can be an advantageous selling point to prospective home buyers – especially when providing a transferable warranty to the new homeowner.

3. Have you done your homework?

Look for credible, independent third-party endorsements such as Good Housekeeping, AAMA (American Architectural Manufacturers Association), NFRC (National Fenestration Rating Council) and the ENERGY STAR label. These organizations use carefully constructed criteria to evaluate manufacturers and products. If a company or product doesn’t make their list, they most likely should not make yours.

4. Have you narrowed your options on energy efficiency?

If your home is located in a warmer, sunny climate, the Solar Heat Gain Coefficient measurement will be more of a consideration. Consider heat-reflective Low E glass and insulating Argon Gas to not only block the sun’s rays in the summer but to prevent heat loss in the winter.

Learn more and check out a handy on-line window design tool at www.windowworldaltoona.com.