About Us


"A" Waterproofing & Drainage Inc. is a locally owned and family operated small business. Proudly serving the Greater Portland/Metro and surrounding areas for over 25 years. We are a licensed, bonded and insured basement waterproofing and drainage company, located in Portland Oregon. A member of the C.C.B. #209016

Specializing in all types of wet basement waterproofing & drainage systems and services; crawlspace repair, water in basements and crawlspaces, leaky basements and foundation repair, wall and floor leaks, wall cracks, and all other types of basement waterproofing & drainage repairs. We design, build, and install our own custom drainage systems; never relying on others systems and products. We stand behind all our services with a lifetime warranty, covered by our 100% satisfaction guarantee. We will provide you with quality references from any of our many satisfied customers. We have 1,000's of satisfied customers locally, and gaining more with every basement we dry up. We have proven to be a waterproofing and drainage company you can count on and trust for years. Our reputation as the top basement waterproofing & drainage contractor rests on our proven ability to consistently solve every wet basement and crawlspace drainage issue we encounter, even when the others fail. We are the industries top basement waterproofing & drainage experts in Oregon, including the Portland/Metro and surrounding areas.

We are an honest, ethical and responsible small business. We won't ever use pressure sales or scare tactics to sell any of our systems or services to homeowners. Our companies good name, work ethic and spotless reputation does that for us!

Contact us for more details on our guaranties and lifetime warranties. From wet to dry in the blink of an eye!

Quality & Dependability:

All of the water we drain away or divert uses a gravity flow system (high to low) to direct the water to a collection area or discharge, that we install to remove the water. Whenever possible we prefer the drainage of water to run off naturally, on its own, (maintenance free) with no additional help from a sump pump or additional electric device.

All the custom systems and services provided by “A” Waterproofing & Drainage Inc. have been carefully designed, created, developed and perfected, by us, then installed by us. The most qualified waterproofing & drainage experts in Oregon. Combine this with over a quarter century of reliability, experience, dependability, and consistency. The systems along with the services we provide our customers are designed to be “maintenance free” a gravity flow system we have developed to permanently keep basements and crawlspaces completely dry year after year. A drainage system relying on electricity, and a backup battery to operate. Is only as reliable as the device (sump pump) and the power it requires to work correctly.

Better Business Bureau

"A" Waterproofing & Drainage Inc. Challenges our readers to do a little research on recent activities at the once, highly regarded BBB and their faulty grading system. How accurate and honest can a referral really be if you have to pay someone to give it? And more importantly how much integrity can the BBB have when for a monthly fee they will knowingly give the unsuspecting public a good referral of one of their paying customers knowing that client is anything but. The BBB is not a state run or state backed organization. They are the farthest thing possible from a nonprofit organization thought to be there to protect the public.

Who is to gain by displaying your business is accredited, by an organization with no credibility? Our guess would be... Only the ones paying them for it!

Check out the 20/20 segment video below for more information.