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came promptly at the designated time. We had someone come to repair this six months ago but the basement contained" to leak.
ground out the substance that was initially there before filling the cracks. He took two hours to do this and did a super job of explaining in
terms exactly what he was doing. He thoroughly explained the warranty and said to call him if there were any additional water concerns. We are hopeful that this has solved the problem. Again, a huge thank you to
for the outstanding job that he did. I can see why there are so many positive reviews for this company on Angie's List!

-Jim O.

"I had a crack in the foundation and the wall was bowing in. Furthermore, the rear foundation wall was also leaking water. I called Foundation Specialists and set" up an appointment for an inspector to come out. He was extremely knowledgeable and gave us a proposal to fix our foundation issues. A few weeks later, the crew came out to install the wall anchors and drain system - it only took a few days! The workers were very friendly and did a fantastic job cleaning up when the project was complete.

-Tricia V.

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Local Articles in Cornelius

6 Questions to Ask a Basement Waterproofing Contractor

Ask your basement waterproofing contractor these key questions.

What to Expect with Basement Waterproofing

Does your finished basement have seepage? Does water find a way in, and make you wonder if you need foundation repair?

A broken water main caused a woman's home in Northern Virginia to flood. (Photo courtesy of FEMA)
Basement Waterproofing, Water & Smoke Damage, Plumbing, Remodeling - Basements

Broken water main floods Virginia woman's basement

laying in grass, flower in toes
Pest Control/Exterminating, Decks & Porches, Pool & Spa Service, Landscaping & Lighting, Lawn & Yard Work, Lawn Fertilization & Treatment, Lawn Irrigation, Painting - Interior, Remodeling - General, Remodeling - Basements, Remodeling - Kitchen & Bathroom, Upholstery Cleaning, Carpet Cleaning, Basement Waterproofing, Heating & A/C, Moving, Real Estate Agents, Locksmiths, Storage Facilities, , Auto Service, Travel Agencies, Travel Medicine, Animal & House Sitting, , Animal Boarding Kennels, Animal Grooming, Hair Salons/Barbers

Use this handy guide to tackle some of the key summer maintenance tasks.

standing water in basement
Basement Waterproofing, Plumbing - Drain Cleaning

Worried about basement flooding? Along with keeping up on leak repairs, you may need a sump pump.

Wet basement floor with mold
Structural Engineering, Basement Waterproofing

A structural engineer explains why to hire an engineer and draft a plan before repairing a wet basement or crawl space.

Angie's Answers

Mold in a basement is a common problem. My company helps people with this every day. Some of the answers you received were helpful but not all the information is correct. First, you need to eliminate the two main ingrediants that mold needs to survive. The first one is water intrusion. This is a must. I am assuming you have no water intrusion as you make no mention. The second componant that needs to be eliminated is moisture. Moisture is also humidity. Basements need to be kept airtight in the summer months. Some folks have posted that you need air flow in your basement. Nothing could be furthur from the truth. When you open any windows for example, not one micron of air goes out of the basement, Warm humid air is sucked into the basement. Houses suck air into the basement and it meets the cool surfaces and skyrockets humidity. The windows must be kept closed and a dehumidification device installed to ensure humidity stays below 60% humidity. The dehumidifier should be energy star rated and purchasing a seperate humidity guage is a must to monitor the unit's progress. We like to keep our customer's basements at 50% humidity. This eliminates the smell that is active mold spore growth. Once the water and humidity is brought under control. Remove the organic materials that have mold on them. Walls, sheetrock and studs that have been affected. Follow the advice of previous posts as you must ensure that you do not affect the rest of the home. Once removed, install new walls using as much inorganic material as possible. We also install vapor barrier over the walls and seal the floors to stopwater vapor transmission into the basement. Poly plastic is not a acceptable vapor barrier. It is not "zero-perm" and will still allow moisture transmission. It will also crack and break into pieces over the years. A PVC liner rated "zero-perm" is the correct product in this application. Depending how large the basement is and if it is sectioned off will determine the dehumidifier strength. We use the Santa Fe line of dehidifiers as they are super energy efficiant and work like a dehumidifier on steriods. I hope this helps and I wish you the best in Basement Health!

Where is the home located, what is the exterior wall construction and type, how is the space heated?


It could be a whole host of different scenarios that would generate that result.  It is nearly impossible to tell but I would say that most basement moisture problems are a result of bulk moisture intrusion or condensation issues. 


Given the deep and hard winter this year, it could be a condensation issue that hadn't previously been shown.




Basement Waterproofing reviews in Cornelius


May we say Mr
Cornelius Waterproofing Contractors Provider Name Locked
Hall and his crew (
Cornelius Waterproofing Contractors Provider Name Locked
Cornelius Waterproofing Contractors Provider Name Locked
) were very Courteous, Friendly, Patient, Knowledgeable and Professional. They answered all our questions, then went that extra mile above and beyond to show us exactly what they were going to do, so as not to leave any doubt in our minds. They were polite in talking with and around my wife and I, like they were talking to one of their own family members. The impression we got from them, while I watched them work was "They take PRIDE in their job and careful in doing the job correctly. They want to make sure their customers are very satisfied. My wife and I are very much satisfied with Mr
Cornelius Waterproofing Contractors Provider Name Locked
Hall and his crew (
Cornelius Waterproofing Contractors Provider Name Locked
Cornelius Waterproofing Contractors Provider Name Locked
). I would recommend them to anyone. They did an excellent job. EXCELLENT JOB WELL DONE !!!!!!! Thank You very much.
Cornelius Waterproofing Contractors Provider Name Locked
Cornelius Waterproofing Contractors Provider Name Locked

- Richard S.

Cornelius Waterproofing Contractors Provider Name Locked
responded immediately to my request for graveling and provided a quote after I emailed a picture of the status of my drive. He honored that quote to the penny. We scheduled a mutually agreeable date. He and his father,
Cornelius Waterproofing Contractors Provider Name Locked
, began and completed the job the same day.
Cornelius Waterproofing Contractors Provider Name Locked
had me show him my desired " lines" for gravel and honored these. My drive was in horrible shape with bare ground showing through and a multitude of weeds. You can see from the picture what an excellent job these professionals did.
Cornelius Waterproofing Contractors Provider Name Locked
has a degree in engineering and knows his business! He proved to be adept at the use of technology and generated my bill on the spot with his tablet.
Cornelius Waterproofing Contractors Provider Name Locked
Cornelius Waterproofing Contractors Provider Name Locked
are very polite, personable and trustworthy. You will feel comfortable in their presence. I'm very happy I contacted them!
- Susan B.

A. J. Waterproofing was prompt at coming out to view the job and give an estimate. The estimate process was a much better experience than what I went through with the larger basement waterproofing companies. The day the job was scheduled the crew was on time, worked diligently and left the job site clean. Given the amount of concrete, dirt, stone, and cement that was transported from the basement through the house, the crew did a great job and the final product looks and works great.
- Christopher M.

Very knowledgeable of the situation, prompt, hard working crew and absolutely solved my problem. This has been an ongoing issue for many, many years with no answers. I now do not use sandbags and I don't have to worry when it rains. Great to have peace of mind.
- Sally J.

He walked the property, saw our pits and pumps. Informed me we should install interior drain tiles because exterior tiles will eventually go bad. And install larger sump pits. I asked for a write up and estimate. He said he would email it to me, and i have not heard back. I sent him an email letting him know I hadn't received an estimate, again, never heard back.
So, cannot comment on any work since i never heard back on any estimates. Zero follow through. However, he did arrive at specified date and time.
- William L.

I have used this company twice now for two separate cracks in my basement wall. Both times I have used the company the phone receptionist was very polite and attentive. I was scheduled quickly and the person performing the work arrived timely. The cracks that I have had repaired have not leaked again and I have a solid warranty on them if they do for no extra cost. I would use
Cornelius Waterproofing Contractors Provider Name Locked
- Kevin D.

Cornelius Waterproofing Contractors Provider Name Locked
was very professional, knowledgeable, and honest. He provided sound advice and advised against doing additional work that was not in our best interest. They delivered high quality work at a fair price.
- Bradley F.

He spent a good 45 minutes looking at the basement situation and outside drainage and grading. He carefully explained an intermediate plan we could tale to stop the water short of having a drainage ditch and sump pump installed. He told us what product to use to seal the basement seam where the wall meets the floor, and he also explained how we could stabilize a couple footers in our crawl space where water had washed away some of the dirt over the years.
He outlined a couple different options we could take if we needed to stabilize our wall and never sounded like he was trying to push us into a deal.
We worked with
Cornelius Waterproofing Contractors Provider Name Locked
before on our old house, where they did $3,000 or $4,000 in work for us. We still had some leaks after, and they returned to patch a basement wall on the outside and install a bigger drainage plate inside to catch more water as it came down. They were very responsive about this, and the second trip came at no cost.
- Tom M.

Waterproofing Contractors in Cornelius, OR

Companies below are listed in alphabetical order. To view top rated service providers along with reviews and ratings, Join Angie's List Now!

A Team Renovations LLC

3820 SE Clark Ct

A1 Restoration Inc.

19215 SE 34th St

A1 Retrofit LLC

1811 ne 84th way

Affordable Remodeling LLC

7967 Mykala Street NE


5201 SE 52nd Ave.

All Pest Control Company

9389 SW Tigard St

Applied Exteriors

15600 SE For Mor Ct.

B&Js Handyman Services Portland

8520 SE Woodstock Blvd

Bluestone & Hockley Maintenance

9320 SW Barbur Blvd.

Breunig Construction Inc.

14360 SE Haze Ct.

Cascadia Works LLC

130 NW 97th Avenue


15140 SE 82nd Dr.

Columbia NW, Inc.

5414 NE 101ST CIR

Constructive Remodeling

5231 SE 111th Ave

Dean Shelley Construction

6950 SE 134th Ave




19300 MOLALLA AVE. #2758
Oregon City

Eco Concrete Design

1212 SE Blair Rd

EcoTec Trade Services llc.

3439 NE Sandy Blvd.


7302 N Richmond Ave

Faison Energy Solutions LLC

1827 NE 44th Ave

Fresh Coat of Portland

6808 SE 74th Ave

Green O Construction, LLC.

1112 SE Maple St #C


8630 SW Scholls Ferry Rd

Halgren Construction

23629 SW Ladd Hill Rd

Halo Homes LLC


Halt Pest Control

3800 SW Cedar Hills Blvd

Humphrey Painting

2200 NE 60th

Innovative Painting Pro's

P.O. Box 3331

Insignia Construction

553 se 3rd

Interstate Pest Management

5320 SW Macadam Avenue, Suite 100

jama 3 ltd

8100 bellaire blvd

John Webb Construction & Design

1256 Willagillespie RD

John's Waterproofing

201 Airport Rd

K Witt Excavating, LLC

32050 Viewcrest Drive

Knight Resources Painting LLC

2778 N Holladay Dr

Lamont Bros.

2050 S Beavercreek Rd 101 305
Oregon City

Lanphere Construction & Development

13625 SW Farmington Road

Lux Construction Inc

2528 SE Salmon

M P Plumbing Co

15330 SE 82nd Dr

Maximum Construction

18410 S Green View Dr
Oregon City

Meoak Contracting LLC

16491 Hiram AVe

Mr. Maid

2907 SE Division Street

Mt Hood Construction Inc

PO BOX 263

Mt. Hood Custom Construction Inc.

16076 S Harding Rd
Oregon City

New World Inc




Palumbo and Son's

11875 SW Baker St,


2738 SE 98th Ave

Posten Painting Inc

12706 SE 27th Ave

Pro Design Construction LLC

236 S 5T Ave

Pro Dry Basement Technologies Inc

16119 SE Evelyn St

Ram Jack West

PO Box 11701

Refined Restoration

P.O. Box 83684

SealwiZe Northwest

P.O. Box 19594

Service Group Construction

10411 NE Fourth Plain,

Shepard Painting LLC

PO Box 182
Lake Oswego

TerraFirma Foundation Systems

761 NE Garden Valley Blvd.

Terry Rinkes Tractor Work

PO Box 546

The Dutch Touch, LLC

2640 SE 80th Ave

The SHIR Corporation

9411 NE HWY 99 Ste. 1

Timurland Construction, LLC

5716 SW Hamilton St

TL Remodel & Construction Inc

PO Box 1996
Lake Oswego

Tool Belt Handyman Service, Inc

1815 Columbia Blvd
Saint Helens

Urban K. Hutchins Construction

54 SE 78th Ave

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