Is there a site where you can get comparison costs for options such as any building product?For labor and materials.

Old post but going to answer anyway.

Cost comparison on labor would be getting more than one quote for the job. Every area will have a different quote. A website probably wouldn't help too much as each job has their own little fun parts. As for materials, call around. There are tons of sites for electronic comparisons but I haven't seen any for building materials.

at www.windows4me.com

you can find comparison cost on multiple brands of windows instantly, with or without installation.