Harper Wood Electric Co.

San Antonio's building supply store listings on SiteCity are easy to work through by phone first. Out of 311 total listings, 310 have a phone number on file, so calling ahead to check stock or hours is the fast path for almost every entry. Websites are close behind, with 283 listings linking out, which covers the majority if you'd rather browse products or get directions before you call. Listings cluster around ZIP 78217, which alone accounts for 30 of the entries, followed by smaller clusters in 78233 and 78216. If you're comparing options in a busy ZIP like 78217, call two or three and ask about lead times before you commit to a trip.

Paid placements on this page are marked Sponsored, and none are active in this category right now, so the order reflects plain directory data with no purchased ranking behind it. If you own or manage one of these stores and spot an outdated phone number or a dead website link, you can claim the listing and correct it yourself, which keeps the directory useful for the next contractor or homeowner searching San Antonio for supplies.