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Allied Waterproofing & Drainage, Inc.

Concrete Driveways & Floors - Install, Concrete Flatwork - Repair & Resurface, Poured Concrete Wall - Install,

About us

Allied Waterproofing and Drainage was originally founded in 1990. We have been providing quality, cost-effective waterproofing and drainage solutions in the Pacific Northwest for over twenty years, and continue to operate today with the same core values we established in our humble beginnings: quality, honesty, integrity, reliability .

Business highlights

35 years of experience

Services we offer

& Subfloor Dry Rot Repair - Sewer & Water Line Repair, - Crawl Space Drain System - Crawl Space Cleaning - Basement Waterproofing - Downspout Drain System - Yard Drainage - Driveway Drains - Exterior Sump Pumps - Video Pipe Inspection - Pipe Jetting and Cleaning - Storm Drains, Replacement & Cleaning

Amenities

Free Estimates

Yes

Accepted Payment Methods

  • CreditCard
Reviews
4.991 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
92%
4
4%
3
2%
2
0%
1
1%
Showing 1-25 of 91 reviews
Deidre C.
Nov 2023
1.0
$7,500
Allied put an interior drainage system in my basement several years ago. Paul is a fast-talking, conniving man who will take no responsibility ever, for any work that was done poorly even with a warranty. He will deny, deny, deny endlessley and come up with the most ridiculous things and will try turn everything around on you no matter what it is. I had him out within the first year after the project because the concrete was cracking. Insects were coming in through my basement floor which used to be in great condition before they cut it and did poor concrete work. At that time he said it was fine and left. I should have known that now, several years later, when I had him out again because the concrete is even worse and has raised up about 1/8 of an inch, that he would have the same useless response. I'm about to install tile and the tile installer has told me that it's going to crack the tile especially because it's continuing to move. Paul will say anything to avoid responsibility. It must be a tree root, he said, even though there are no trees anywhere around. Then he'll say that it's not cracking even though I and others can see it with our eyes. Then he'll say that he can fix it for a fee even though I have a 10 year warranty. Then he'll say concrete cracks, even though the rest of the concrete in the basement is 100 years old and is not cracked, nor are the other areas that they did. Just the one area that he's denying is even cracked. Then he'll say well, it must be your floor that's moving, nothing is wrong with the concrete we did. No, my original floor is still in the same place and looks great, to which he says, how do I know? Don't waste your time. Go with a different company. If things go wrong, you can't rely on this company to do the right thing and your warranty is useless.. I had to tell Paul to get out of my house because he was yelling at me and talking down to me like I must be stupid as if I must be seeing a crack that doesn't really exist. Other contractors who have looked at it said it should not be cracking. And the contractor who was here asked Paul if they used rebar, to which Paul replied no, nobody ever does. Another lie. Then he couldn't believe that I told him to get out of my house. If you're going to be an ahole, expect to receive it in return. As he was going out the door, he turned and demanded to know what I do for a living. I had to tell him to get out of my house again. It doesn't matter what I do Paul, but I can tell you that I take responsibility for the services I provide and I do not lie to my clients faces. What a rude little man and completely incapable of doing the right thing. I already knew that before I had him out the second time. Don't let him fool you when he comes out to give you the initial bid. He's real helpful when he's going to get money out of you but he is slimy and conniving and cannot be trusted when things go wrong. The pictures are from today. The epoxy was just put on the other day by the tile guys but they think that it's hollow underneath. When they tap on it it feels hollow and moves a bit like there's no gravel under it and the epoxy just went in endlessly for the same reason so the gap can't be filled because there's nothing inside of there. But of course Paul said that's not true either. They also sloped a corner upward which is going to affect doing flooring and then Paul denied that too and said that it's not really like that I'm just making it up. Then he told me it must have already been like that. I told him it wasn't. He said well how do you know that, and that he doesnt don't know that so therefore it must not have been. Because it's my house Paul and I saw the floor before you got to it and ruined the Integrity of it. There was a contractor there with me witnessing all of this rediculousness and he could not believe this man lying to our faces and taking no responsibility.

Barbara M.
Jan 2023
5.0
Yes, I recommend this pro
$18,000
Allied Waterproofing just finished a complete overhaul of my storm drain system, and I am very pleased with the results. Having worked with a great many contractors over the years, I can attest they are at the top of my list for professionalism, work ethic, excellent field and office staff, and making sure all commitments were met with regard to design and follow through. I could not be happier because my system was designed to meet the higher amounts of stormwater occurring in this area.

Jeremy T.
Dec 2018
5.0
Yes, I recommend this pro
Allied is very professional and straightforward in what they quote. There are no surprises in what needs to be done or how much it will cost.

Barbara B.
Apr 2018
5.0
Yes, I recommend this pro
They did an excellent job

Victoria M.
Oct 2017
5.0
Yes, I recommend this pro
$1,800
Paul and everyone else at Allied were a pleasure to work with. They showed up when they said they would, gave me a very fair, reasonable bid for the work and managed to work this small job into their busy schedule within a week. I had questions while the work was underway and Paul was quick to respond to every question via email. I will use them again for any drain issues I have.

James B.
Jun 2017
5.0
Yes, I recommend this pro
$1,200
The job was completed with no problems.

Steven P.
Dec 2016
5.0
Yes, I recommend this pro
Excellent crew and estimators.

Jeffrey T.
Apr 2016
5.0
Yes, I recommend this pro
$8,800

I recently sold a home in Seattle.  Like many homes in the Green Lake neighborhood, it was built in the 20’s.  We found out the hard way that there are a lot of issues with the old sewer lines.  When our buyers scoped the sewer line some significant damage was discovered so we had no choice but to repair it to make the sale go through.  I did my due diligence.  I received four bids from all the most notable sewer repair companies in the area. 

Not only was Paul’s quote literally THOUSANDS lower than the other three, it was by far the most professional experience I had.  The others ranged from handing me a business card with an “estimated cost” scribbled on the back to verbal quotes.  I felt like I was being taken for a ride with the others and I now understand why plumbing a sewer repair companies can have bad reputations.  I felt like I invited three used car salesmen into my home to fix my sewer!  It was pretty clear to me that once the other companies started the work they were going to begin tacking on additional repair costs because they made no commitment to the final total. 

Paul was upfront from the beginning about what the damage was and exactly how he’d repair it, which was really refreshing.  He replaced our entire sewer line that ran under a sidewalk and a retaining wall with landscaping as well as our driveway.  If you saw it now you’d never know anything ever happened.  His crew was professional, courteous, and punctual.  I’d recommend them to anyone in need of a repair.  


Pam M.
Apr 2016
5.0
Yes, I recommend this pro
$480
unknown

Pom N.
Mar 2016
5.0
Yes, I recommend this pro
$1,100
Excellent work- I called a couple of folks but got these guys from my neighborhood blog in west seattle with a recommendation. They did a good job, explained it, drew a picture and then came out and tore up concrete, replaced drain and patched it up. It looks good and everything works well.

Kimberly T.
Mar 2016
5.0
Yes, I recommend this pro
$1,450
I cannot recommend Allied Waterproofing enough! I have worked with Paul in the past and did not hesitate to contact him for this job. Excellent service from start to finish. Allied Waterproofing provides the quality workmanship and professionalism you expect but rarely find these days.

Rebecca P.
Jan 2016
5.0
Yes, I recommend this pro
unknown

James D.
Nov 2015
5.0
Yes, I recommend this pro
$275
unknown

Stella L.
Oct 2015
5.0
Yes, I recommend this pro
$3,500
I worked with Paul, and I have to say (even though no one WANTS to deal with sewer issues), this was perhaps the best experience with a service provider for repairs that I've ever had. The house is over a hundred years old and you never know what you're going to find when you start digging. Paul's crew came out many times over the course of a couple of weeks, sometimes spending hours doing exploratory digging to make sure we knew what the real problem was. It turned out that this was really important because no one ever could have guessed how things had been mis-routed. In the end, the price was really reasonable and I found it really easy to work with Paul as the job morphed requiring some re-estimations. His crew went above and beyond on several occasions to make sure that they got everything taken care of.
If you're from the school of thought that a bid is a bid, I'm sure Paul can accommodate that, but for me with old houses, I always am super sensitive to bearing the burden of things that can't possibly be known so that service providers don't feel like they need to cover every contingency in their bid. Working this way requires a pretty trustworthy relationship, and I found Allied/Paul to really be great in this way.

Ada F.
Sep 2015
5.0
Yes, I recommend this pro
$22,000
Paul Koronovsky was prompt with his estimates, and the crew was very clean and professional. They started the job when estimated, and they finished to the day that Paul had planned. There was no break in work to handle anything at an different job site. The crew left all landscaping in as close to the original condition as is possible. I am very pleased with their work, and I would use this company again, without hesitation.

William S.
Sep 2015
5.0
Yes, I recommend this pro
$489
Paul responded to our inquiry and showed up right on time to review our basement flooding situation. We had some water in the basement during a couple of recent downpours. Paul was very easy to work with and practical in quick suggestions, giving us some no-cost and low-cost options.  He mentioned that they are able to locate drain lines, so I decided that having them scope our lines and locate them for this 52-yr old house would be a good idea. We needed to know the location of our septic field lines so that we would know where NOT to dig for a future project.  
When Roland and Sergei arrived, I had the D-box exposed and they were able to locate the three field lines as well as tell me their depth in less than 30-40 minutes . The second project was to locate the exit of the footing drains.  House was built in 1963, so a lot has happened to obscure things since then  Roland and Sergei went right to work and located the troublesome drain outlet with their echo finder followed by some digging.  A broken and plugged tile was the culprit.  Good.
Now the other footing drain.  The builder had told me that the footing drains ran parallel to the sides of the house and that was true of the first one. The second drain -their scope stopped at about 3 feet from the downspout entrance, under a concrete slab sidewalk.  I wanted to know the problem and was willing to bust it up with a sledge but Sergei suggested prying up the (relatively) small slab and was inventive at  getting that done. Opening things up a bit, it turned out that the drain was completely plugged and headed off in a 45 degree angle, going under the concrete slab of the separate structure garage.  Evidently the drain water was just being dumped out through the seam in the sidewalk and pouring across our driveway without our realizing what was happening.  
Hmm, so for the time being things were closed back up and a little thinking is to be done about how best to handle it.  Roland and Sergei did a great job of efficiently applying themselves to the job from beginning to end and were a real pleasure to deal with. They got everything cleaned up in a jiffy and after a quick phone call from the office from Brooke to arrange payment, they were on their way.  The good reviews that I had read on Angie's certainly proved true for these folks and I would highly recommend them if you need help with drain or water problems.  They know their stuff and are great to work with.

Cheryl L.
Sep 2015
5.0
Yes, I recommend this pro
unknown

Robert J.
Aug 2015
5.0
Yes, I recommend this pro
$4,000
unknown

Martha S.
Jun 2015
5.0
Yes, I recommend this pro
$3,500
We felt that this company came very highly rated on Angie's List, so we were expecting the great service that we received.  Paul came out and gave us a bid on Tuesday and we had the hand written invoice proposal by that afternoon.  We decided to go with the company.  They started work the next day (Wednesday) and were finished on Thursday.  The communication with their office was excellent.  Response time was quick.  We felt that the price they gave us was very fair for what work they did.  We were extremely pleased with the transaction with this company from start to finish.

James B.
Jun 2015
5.0
Yes, I recommend this pro
$1,200
unknown

Jill W.
May 2015
5.0
Yes, I recommend this pro
$4,000
Excellent service all the way around.  Responded quickly to the messages that I sent through Angies List, proposed a solution to  the situation with an estimate was reasonable and complete the work on time.  There were no surprises.  The quality workmanship and supplies exceeded my expectations. I strongly recommend this company; we have already recommended Allied to several others who need  to have similar work completed.

John S.
Apr 2015
5.0
Yes, I recommend this pro
$5,000
Paul was extremely professional and knowledgeable about my issue. HIs crew showed up on time and were fantastic in their work ethic and professionalism. They too were very knowledgeable about the problem and the correct solution. In the process of troubleshooting the problem his team went above and beyond for me. I would highly recommend this company. I can't imagine using anyone else to solve drainage issues. I give them an A+!

Ron E.
Feb 2015
5.0
Yes, I recommend this pro
$4,240

Very well.  A crew of 4 were here two full days and laid down plastic in the hallway to the closet where the entrance to the crawlspace

is.  They were punctial, friendly, and cleaned up each day.  Once the pump was intalled they wanted to make sure the crawlspace was dry before they laid down the plastic vapor barrier.  A crew returned 2 weeks later, made sure the crawlspace was completely dry and installed the barrier.

Caroline G.
Feb 2015
5.0
Yes, I recommend this pro
$450
unknown

Guyce L.
Jan 2015
5.0
Yes, I recommend this pro
$2,600
They used electronic equipment to locate the bad pipe and mark the area. When they came back to dig up and replace the drain line were were very impressed with how carefully they treated our lawn and yard. They put down tarps, carefully removed the sod and then dug the trench.  They even had to go under our concrete patio and did so without any damage to the concrete. They installed a clean out for the drain line, drain guards on the downspouts, at our request and repaired another area of the drain line at the far edge of the property.  Roland and Ivan were very friendly, answered our questions and were very professional and hard working. When it was time to fill in the trench, they put all the dirt back, raked up all debris and relaid the sod. After they were gone, we could hardly see where they did the work.  We were more than pleased with their work and very pleasant attitudes. They enjoyed d*** the work and were very good at it. We very much enjoyed working with the owner, Paul, too. He had excellent communication with his office staff and workers. A very well run operation. They let us know what was going on at all times. We would definitely call Paul if we have any further drainage needs.
Showing 1-25 of 91

Licensing

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FAQ

Allied Waterproofing & Drainage, Inc. is currently rated 4.9 overall out of 5.

Allied Waterproofing & Drainage, Inc. accepts the following forms of payment: CreditCard

Yes, Allied Waterproofing & Drainage, Inc. offers free project estimates.

No, Allied Waterproofing & Drainage, Inc. does not offer eco-friendly accreditations.

No, Allied Waterproofing & Drainage, Inc. does not offer a senior discount.

No, Allied Waterproofing & Drainage, Inc. does not offer emergency services.

No, Allied Waterproofing & Drainage, Inc. does not offer warranties.