| Business | Phone |
| Anchor Waterproofing 2416 Diana Rd, Baltimore 21209 | (410) 602-6474 |
| B-Dry System Baltimore 21226 | (410) 255-5458 |
| Mlc Foundation Coating Co 9137 Field Rd, Baltimore 21208 | (410) 356-6499 |
| Dam Basement Waterproofing Baltimore 21201 | (410) 821-6522 |
| Oriole Basement Waterproofers Baltimore 21222 | (410) 284-1440 |
| Foundation Coatings Baltimore 21201 | (410) 687-5724 |
| Maryland Waterproofing & Radon 825 N Point Blvd, Baltimore 21224 | (410) 296-6942 |
| A Affordable Baltimore 21204 | (410) 296-6942 |
| Mnp Waterproofing Inc 5502 Belair Rd, Baltimore 21206 | (410) 485-1164 |
| Aqua-Tech Waterproofing Inc 504 Baltimore Ave, Baltimore 21204 | (410) 729-4477 |
| Beltway Waterproofing Co 6602 Kenwood Ave, Baltimore 21237 | (410) 686-8873 |
| E & H Waterproofing Inc 7618 Mars Ave, Baltimore 21234 | (410) 254-2364 |
| Guardian Corp 4400 Milford Mill Rd # 2, Baltimore 21208 | (410) 265-8888 |
| Stop Leak Inc Watrprfng Co 108 Wise Ave, Baltimore 21222 | (410) 285-4558 |
| T Brown & Assoc Inc 6914 Golden Ring Rd, Baltimore 21237 | (410) 391-2266 |