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M Leon Construction

Founded 1980 • With Angi since July 2006


(137) Verified Reviews


M Leon Constructions specializing in foundations, basements, crawl spaces, drainage problems, structural wood rot, replacement of driveway bridges....

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Drainage Masters LLC

Are you in need of sewer repair? Do you have standing water in your crawlspace, a soggy yard, wet basement, broken or clogged roof drains or driveway puddles? Do you need a new dry well, french drain or just some grading? Check out our website to see how we can help you or just give us a call. We can set up an appointment for a free estimate to give you a professional evaluation of your drainage needs. Drainage Masters will give you an effective plan of action, quality work and competitive prices. Our work comes with warranties that will be honored. Drainage Masters became a licensed general contractor in October 1996. In 2015, Seth Kenworthy became the sole owner and manager of Drainage Masters LLC. They are licensed, bonded and insured in both Oregon and Washington. Since the beginning of Drainage Masters in 1996, Seth has proven his ability to understand the often-complex technical details of solving drainage problems and of effectively and efficiently managing every project they do. Our service territory is primarily the Portland/Vancouver metro area but extends as far north as Chehalis, as far south as Salem and from the Cascades to the coast. Drainage Masters combines technical expertise, integrity, quality work, a strong customer service ethic, environmental consciousness and fair pricing to bring our customers the best contracting experience they can get. Our full service and quality work has resulted in many satisfied customers and welcome referrals. Not all drainage or water management projects are complicated. But whether they are or not, you can be sure that Drainage Masters can handle it. Their professional and courteous office staff will be happy to assist you in scheduling a free estimate and then follow up to schedule your project as quickly as possible. Drainage Masters is now offering full service sewer repair, give us a call today. Call Drainage Masters today!  

Offers by Drainage Masters LLC on Angi
John's Waterproofing

John's keeping basements and crawl spaces dry and healthy since 1974. Cost is determined by the job. CCB#15830 Additional phone numbers: (800)810-5883, (503) 873-5650, (503) 233-0825 & (503) 364-3978. Additional e-mail: In house licensed plumber.  

Verified Reviews

A few reviews for this pro...


Good communication and the work was done in a qualify fashion.

Description of Work
French drain around interior perimeter or crawlspace + install sump pump

Category basement waterproofing

Service Provider Response

Hi [Member Name Removed], thank you for the feedback, much appreciated! - MLC


They excavated half of our basement that was all dirt and then put up retaining walls that extended to the foundation. After doing a lot of research, I chose M. Leon to do our foundation repair because they were recommended by several other contractors and they gave me the best price. Pascal and the workers were all lovely people and easy to have in and out of my house for three months. They resol...

Description of Work
Basement Excavation/Retaining Walls

Category egress windows,excavators,foundation repair

Service Provider Response

[Member Name Removed], Thank you so much for the great review. We are so glad to hear you're happy with the work. Take care, Loraine w/M. Leon Construction


After purchasing our first home, we had a reputable company come in to give us a bid for earthquake retrofitting. When looking in our crawl space, the estimator pointed out two cracks and told us we had a big problem. He said that our house had active differential movement, and the cost to save our house would be around $20K. Thankfully, our realtor, recommended we have m. Leon construction out to...

Description of Work
Another company said our foundation was screwed.

Category foundation repair

Service Provider Response

[Member Name Removed], We are so glad to help. I appreciate you taking the time to review us. M. Leon Construction


They did an amazing job! We had Pascal come give us an estimate a few years ago before we had the work performed. Our basement flooded in August due to a garden hose/ watering issue. Pascal sat my husband down and asked a ton of questions and suggested waiting a year to see if it leaked during the winter. No other company made this reasonable suggestion. Pascal and Lorraine were always super nice ...

Description of Work
Installed French drain.

Category contractors

Service Provider Response

Thank you, [Member Name Removed]. We are glad you are happy with the work completed at your residence. It has been a busy year and we are thankful for clients like you who are understanding. Please let us know if you have any questions and thanks again for taking the time to complete a review. M. Leon Construction


We were very impressed with the work. Thorough and a good value. End result looks good too.

Description of Work
French drain and connecting downspout to sewer

Category basement waterproofing

Service Provider Response

[Member Name Removed], Thank you for taking the time to leave such an encouraging review. It was great working with you. M. Leon Construction

    Services Offered

    Foundation repair, basement refinishing, waterproofing. Crawlspace drainage, dig outs and clean outs. Exterior drainage . Rot and insect damage repair. Floor leveling. Driveway bridge replacement.

    Services Not Offered

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    General Information
    Free Estimates
    Eco-Friendly Accreditations
    Payment Options
    Senior Discount
    Emergency Service