Andy Construction LLC

Basement Waterproofing, Foundation Repair, Drain Pipe Installation,

About us

We are not a big company that you have to go through all the phone calls. Owner Andy Zhang will be the one to answer the phone, provide you the bid, and supervise and inspect the work before finish. We are so confident in our work, quality, and over all experience that we don't need any money down. Our customers don't pay us anything until the work is done and customer is happy! For a house on the market, in most cases, we allow owner pay the full bill through escrow at closing. We pride ourselves in treating every customer with honestly.We looking forward to hear and serve you soon!

Business highlights

13 years of trusted experience

Services we offer

Basements & Crawl Spaces. Install & Replace - Sump Pumps & Sewer Lines.

Amenities

Free Estimates
Yes
Warranties
Yes
Senior Discount

5%



Accepted payment methods

Check
Financing Available
MasterCard
Visa

Photos of past projects

Reviews

5.025 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
96%
4
0%
3
0%
2
0%
1
4%


Rating CategoryRating out of 5
quality
5.0
value
4.9
professionalism
4.9
responsiveness
5.0
punctuality
4.9

Filter reviews by category

Showing 1-25 of 25 reviews

Andrew W.
06/2024
5.0
drain pipe, basement waterproofing
  + 0 more
I called Andy after discovering a basement leak. Andy after a few photos immediately knew the source and with some phone guidance we were able to solve the problem. He even refused my offer to pay
Description of Work: I called Andy after discovering a basement leak. Andy after a few photos immediately knew the source and with some phone guidance we were able to solve the problem. He even refused my offer to pay

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Michelle G J.
11/2021
1.0
basement waterproofing
  + -1 more
He can't guarantee his work. and he ask me to buy the materials that I didn't know about it.
Description of Work: Waterproof a Basement or Foundation
Rating CategoryRating out of 5

Response from Andy Construction LLC
[Member Name Removed], You have a water issue in the basement at back left corner. I am honestly enough to tell you the main problem you having is all the downspouts that is draining next to your house specially one at NE corner cost the issue. I sent you a bid to take care of the downspouts which is divert roof water underground to front of your property. My bid is always 100% including materials, I never ask any customers to buy their own materials. After I sent you a bid, you text me back asked me is the materials needed to use can be purchased at Lowe’s. Well, my thought when I see your text was you probably have some help want to try to do yourself. I am nice enough to text you back and tell you yes, you can get all of your materials at Lowe’s. We get our pipe 5000 feet at once every few months. There is no reason I asked any customers to get their own materials. For the guarantee, no I can’t guarantee your basement can stay dry if we take care of downspouts. But my bid is to take care of obvious issue first. I can easily give you a bid that is 5 or 10 times more to put in a footing drain in the basement with sump pump. I make more money that way. I can guarantee you for a lifetime! But that is not the correct fix or approach. For any customers read my response, i can tell you if you have any water issue in the basement. Please check all of your downspouts or where is your roof water goes or end up. 75% of house water issue can be resolved by make sure your roof water is draining away from your house. Not many other professional in this field will tell you this! Also for [Member Name Removed], I do make mistake on some issue along the way over the years. But I can tell you I didn’t make any mistake here, there is not a thing I would change the way I approach this case. The problem here is you don’t understand the way I explained to you how it work. I wish you best of luck! If you end up putting a perimeter drain in the basement, 90% or more of water going into the drain is roof water at back left/NE corner

Jennifer H.
02/2021
5.0
basement waterproofing
  + -1 more
I did not end up using Andy for reasons outside of him but he would be the first person that I would use and call in the future.
Description of Work: Waterproofing

Rating CategoryRating out of 5
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Uday B.
02/2021
5.0
basement waterproofing
  + -1 more
We got a bid from Andy Construction for water-issues in our crawlspace. Of the companies that I talked to about this issue - I thought Andy provided the most objective recommendation (though it costed lesser). Other companies were recommending a sump pump. Andy recommended addressing the source of the water (downspout drainage issue). We haven't yet gotten the work completed, but would recommend Andy Construction based on the bidding process.
Description of Work: Water issues in the crawlspace

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

k C.
01/2021
5.0
basement waterproofing, drain pipe
  + 0 more
I have a 1906 cottage in N Seattle, with an old porous foundation. Water came into the basement for the first time in 20 years. Another contractor bid the job at $12,000 after 3 site visits and almost a month. Andy came out to the house the same day I talked to him, and estimated the same job at half that price. He followed up with questions, asked about making another visit, came out again and saw that the drainpipe was disconnected at the top of the area being flooded. 75% of the roof's water was pooling against the house. He found a ladder and fixed it and isn't charging me a dime. So, no French drain, no Delta drain, no foundation treatment, no 50' of trenching, no $$$. Andy was timely, reliable, did what he said, and knows his stuff. He was a great communicator, and I feel so so lucky to have found him.
Description of Work: Water in the basement

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

John W.
01/2021
5.0
foundation repair
  + -1 more
Water in basement
Description of Work: Andy came by and determined that the water in the basement was from an old water main entry point in the house. Recommended I just seal around the entry hole in the foundation and didn’t think I needed any further waterproofing or drainage. I appreciated his honesty and would definitely recommend him.
Rating CategoryRating out of 5
Yes, I recommend this pro

Jason M.
06/2019
5.0
Outstanding work and value. Andy was quick to respond and came out the next day to assess what we needed to do to improve the drainage in our crawlspace. The home is built on a sloped lot. Andy suggested a full perimeter drain install around the foundation. The work also included complete replacement of the vapor barrier. All work was performed efficiently and Andy backed it up with a lifetime warranty. I couldn't be happier with the end result and would highly recommend Andy and his crew.
Description of Work: Crawlspace Repair
Rating CategoryRating out of 5
Yes, I recommend this pro
$3,350

Julie E O.
10/2018
5.0
basement waterproofing
  + -1 more
Andy's team first helped us to trouble shoot the problem and got us to a level of understanding that we had a pretty major job to do but it would be done right. We ultimately received three bids and all of them had similar solution suggestions. What made us choose Andy was a) the price was better, b) he was very knowledgeable and c) he took an iterative approach. He knew that if we could avoid this much disruption in our home by doing something less major, we would. But after doing some test patches, ultimately it was clear that we had to do the full replacement. Andy was the most understanding of our desire to try to save the tiled bathroom. Luckily his team was able to navigate around it to tie into the sump pump which saved us the bathroom floor replacement. His team of two guys spent the week here and they were timely, friendly, communicative and did a great job. We feel confident in the work and would recommend Andy to anyone facing this major issue.
Description of Work: We had an internal curtain drain replaced in our basement to solve a moisture problem. This entailed removing about a foot of concrete floor and the wall up to the knee all the way around the foundation inside the house.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Jade Z.
01/2018
5.0
basement waterproofing
  + -1 more
I am currently building a home at Redmond. There is 6" of water inside foundation. Andy took a look at it and gave me honest opinions. He said he did not worry about it now. It seems the water was from rain because there is no roof and frame yet. I really appreciate his honesty. I can see he is a contractor I can trust.
Description of Work: wet foundation

Rating CategoryRating out of 5
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

May C.
10/2017
5.0
basement waterproofing
  + -1 more
First and foremost, I love Andy's integrity and problem-solving aptitude. I had initially thought/assumed it was drainage issue. I contacted Andy Construction through referral from a real estate agent. Andy came by to take a look of the situation situation, and gave me two options to choose from: (1) dig drench on the outside below the deck to direct storm-drain water to the street. But he couldn't guarantee that would fix the issue, and that cost was $600. OR (2) Install French-drain in the entry-foyer to direct water to the street, and that cost was going to be $2000. With already mounting expenses on other fixes and improvements, I decided to go with Option #1 for $600. This was done in summer and there was no rain to verify if the issue was fixed until recently. With a few days of consistent rain in late September, I saw that the water was still coming in. So I called Andy to come and install the French-drain. Andy asked me a few questions over the phone, and told me that he suspected the problem wasn't as serious as what I thought. He came by with one crew member, I agreed to have it cut open 2-ft drywall, and saw that in the corner, there was a small pile of sand/soil. I asked them to open the entire wall, and was confirmed that there was 2 areas of leaks - 1 was a hole on the top, another leak was through rotting nail drill onto the 2x4 for the deck fence outside above. Andy and his crew repaired the concrete hole, and advised me to repair the rotting nail drill from the deck-level. This solution costed me $350 instead of $2K, and I thank Andy for his knowledge in diagnosing the issue and the integrity to charge accordingly. Andy Construction is definitely my go-to contractor for all drainage and water leak issues!
Description of Work: Identify and repair leak into entry-foyer. Whenever it rains, the two floor edges against the outside with 1 against a hill that has a deck above it, would get wet and you can easily smell the dampness.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$350

Jane T.
08/2017
5.0
basement waterproofing, drain pipe
  + 0 more
The installation was fast.
Description of Work: Diagnosed problem and installed exterior downspout with gravel drywell.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$500

Jennifer E.
07/2017
5.0
basement waterproofing
  + -1 more
We will know more in the winter when it rains, but the work done went exceptionally well!
Description of Work: Sump pump install to help waterproof the basement.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$3,250

John K.
06/2017
5.0
basement waterproofing
  + -1 more
Well. Three months later you cannot tell where the digging took place.
Description of Work: Underground house gutter drain line.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$1,000

Giannina S.
06/2017
5.0
basement waterproofing
  + -1 more
Andy's crew installed a drainage system in my crawlspace and was fast and professional. He stands by his work and will answer any questions you might have.
Description of Work: Trenches dug in crawlspace, regrading, french drains laid into trenches, then connect drains to main builder's so gravity would help water flow out when flooding happens during heavy rains.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Ashwini B.
04/2017
5.0
basement waterproofing, drain pipe
  + 0 more
They came in and put plastic on the floor and kept the door closed as as much as possible thus not letting heat out of the house. All the work after went smoothly i.e. quick and neat. Everytime I had a question, Andy stopped and answered every concern we had. He also guaranteed the water clogging wont happen and asked us to contact him on direct line if ever we have a problem. At the end, on request, he also explained to us where and how things work and where the water will go in future. Time was scheduled at 10 am. Andy and his crew came 1.5 hours earlier than the expected time without prior information which caused me to get up and rush to the door half awake. That was the only complain I had.
Description of Work: Crawl space had water in it, so some drainage system was needed

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
4.0

Yes, I recommend this pro
$3,300

Mark C.
03/2017
5.0
basement waterproofing, drain pipe, foundation repair
  + 1 more
Andy and his crew were timely, courteous and professional. His solution worked exactly as he described it would. Problem solved.
Description of Work: We live downslope of the Edmonds Bowl and dad water coming into a downstairs room. Andy recommended an interior footing drain (basically a French drain on the inside of the foundation) on two walls. Andy's system was designed to empty water from under foundation via solid pipe that they laid to a low point in the yard.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$4,850

Mary B.
01/2017
5.0
basement waterproofing
  + -1 more
The team was right here then wen needed them. He came out immediately and the performed the work under difficult situations due to weather. The got it done within 2-3 days. They were honest, prompt. I think very reasonably priced for the work performed. They were very easy to work with and reliable.
Description of Work: Andy's came out and did work under the house to drain water away, installed sump pump, dug a draining ditch and installed new pipes to insure proper water redirection away from home.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$3,500

May C.
08/2016
5.0
drain pipe
  + -1 more
Andy was very responsive, very professional, very transparent about the solution. I appreciated his ethics, professionalism and transparency.
Description of Work: Repair Foundation Wall Cracks, and putting in a small french-drain outside of a side-wall.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$500

Terry C.
08/2016
5.0
foundation repair
  + -1 more
Andy responded to my request for a bid within 24 hours of contact, then came out to review the job at a date and time that was very convenient for my schedule. He gave me an estimate and was willing to negotiate a bit. He then scheduled the work to be done just a few days later. The work was completed within the time frame he gave me, and looked exactly as he had described it would look. This was important because the repair is very visible as it was in the garage of my split level home. He followed up after the work was complete to ensure I was satisfied. He cleaned up after all the work was done, and his communication throughout the entire process was fantastic - clear, timely, and professional. I would not hesitate to hire him for any other work and enthusiastically recommend him to others. I couldn't be happier!
Description of Work: Repaired a long crack (over 3 feet long) in the foundation of my home.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$1,500

Amy H.
06/2016
5.0
basement waterproofing, foundation repair
  + 0 more
unknown
Description of Work: replaced exterior door frame trim

Rating CategoryRating out of 5
quality
5.0
value
4.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$800

Robert L.
05/2016
5.0
basement waterproofing, drain pipe
  + 0 more
Job went great. Andy is friendly, professional, reliable and honest (e.g. he didn't push expanded scope of french drains, etc--though it would be difficult for the average homeowner to know if that's not needed). I would definitely call him again if the need arose.
Description of Work: Diagnosed issue. Put two downspouts into tight pipes and ran them away from foundation to drain into gravel pit. Patched gaps/opening around foundation wall.

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$712

CHERYL S.
01/2016
5.0
wells, basement waterproofing, foundation repair
  + 1 more
The Zoeller sump pump in our basement had stopped working during a torrential storm, right before the holidays. I had 3 different plumbers/contractors come to provide estimates. Other plumbing repair companies wanted to redesign the entire system for $1500 or couldn't get us scheduled for 30 days. Andy and his crew were very responsive. Andy addressed the issue - a broken pump - and did not try to coerce me into more work than was necessary. HIs team quickly installed the sump pump, installed a new check valve, and hauled away the old material. The system works beautifully and much quieter than before. We will definitely contact Andy in the future and we highly recommend him. Thank you!
Description of Work: Installed a new sump pump and check valve.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
4.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$465

Belinda D.
12/2015
5.0
foundation repair
  + -1 more
Andy and his team are punctual and friendly. Andy is honest. He provided an extensive list of references. They gave him high praise. His bid was higher than others but I'm glad I chose him. (I had 6 bids in total) He also answers his phone immediately so there is no playing phone tag.
Description of Work: Waterproofed a crawl space. Provided insulation throughout. Created a drainage system. Voila, no more concerns about moisture damage. Let it Rain! I'm now safe.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$7,500

Marty B.
09/2015
5.0
foundation repair
  + -1 more
unknown

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$1,500

Bob A.
02/2015
5.0
basement waterproofing, foundation repair
  + 0 more
.
Description of Work: Upgraded/replaced drainage channel in crawlspace and added new vapor barrier!

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

    Contact information

    2333 NE 94th St, Seattle, WA 98115

    http://andyconstructionllc.com

    Service hours

    Sunday:
    9:00 AM - 4:00 PM
    Monday:
    8:00 AM - 7:00 PM
    Tuesday:
    8:00 AM - 7:00 PM
    Wednesday:
    8:00 AM - 7:00 PM
    Thursday:
    8:00 AM - 7:00 PM
    Friday:
    8:00 AM - 7:00 PM
    Saturday:
    9:00 AM - 4:00 PM


    Licensing

    Bonded

    Insured

    Licensed*

    Trade License Number
    ANDYCCM895OM
    Trade License Locale
    WA
    Trade License Authority
    Washington State Department of Labor & Industries
    Trade License Expiration
    09/20/2025
    State Contractor License Requirements

    All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our State Contractor License Requirements page.

    *Contact business to see additional licenses.


    Service Categories

    Basement Waterproofing,
    Foundation Repair,
    Drain Pipe Installation,
    Wells and Pumps,
    Sewer Cleaning,
    Insulation

    FAQ

    Andy Construction LLC is currently rated 5 overall out of 5.

    Sunday: 9:00 AM - 4:00 PM

    Monday: 8:00 AM - 7:00 PM

    Tuesday: 8:00 AM - 7:00 PM

    Wednesday: 8:00 AM - 7:00 PM

    Thursday: 8:00 AM - 7:00 PM

    Friday: 8:00 AM - 7:00 PM

    Saturday: 9:00 AM - 4:00 PM

    Andy Construction LLC accepts the following forms of payment: Check,Financing Available,MasterCard,Visa
    Yes, Andy Construction LLC offers free project estimates.
    No, Andy Construction LLC does not offer eco-friendly accreditations.
    No, Andy Construction LLC does not offer a senior discount.
    No, Andy Construction LLC does not offer emergency services.
    Yes, Andy Construction LLC offers warranties.
    Andy Construction LLC offers the following services: Basements & Crawl Spaces. Install & Replace - Sump Pumps & Sewer Lines.

    Contact information

    2333 NE 94th St, Seattle, WA 98115

    http://andyconstructionllc.com

    Service hours

    Sunday:
    9:00 AM - 4:00 PM
    Monday:
    8:00 AM - 7:00 PM
    Tuesday:
    8:00 AM - 7:00 PM
    Wednesday:
    8:00 AM - 7:00 PM
    Thursday:
    8:00 AM - 7:00 PM
    Friday:
    8:00 AM - 7:00 PM
    Saturday:
    9:00 AM - 4:00 PM