First, you should look for siding certified under the Vinyl Siding Institute's third-party certification program. Certification under this program ensures that the siding meets ASTM D3679 requirements. This is the industry standard for vinyl siding.

Second, you'll need to determine what level of performance you will need. For example, some vinyl sidings are thicker than others, which can increase impact resistance and rigidity. Some vinyl sidings have a higher profile height than others, which can also increase rigidity. Added rigidity can help provide a straighter installed appearance. Some vinyl sidings have different windload resistances, as well. Typically, thicker vinyl sidings with taller profile heights and higher windload resistances are more expensive than thinner vinyl sidings with lower profile heights and lower windload resistances.

Finally, you should be certain you hire a quality, insured siding contractor. Ask for references and to see examples of his or her work. Find out if they guarantee their work. We warrant vinyl siding against manufacturing defects, but do not warrant installation. You may also want to check with the Better Business Bureau to see if any complaints about the vinyl siding contractor have been registered.

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