-Find top-rated Service Providers

Find Top-Rated Cornelius Waterproofing Contractors

Angie's List helps you hire the best - and avoid the rest!

Waterproofing Contractors to Avoid


Top Rated Waterproofing Contractors


Prevent buyer's remorse with us

  • Over 3 million people trust Angie's List to help make the right choice
  • Be informed to avoid costly mistakes
  • Shop with us to ensure a fair price
  • Our complaint resolution team will help if a project goes bad
+See Verified Local Reviews

Over 2,629 reviews for
Cornelius Waterproofing Contractors from people just like you.

"The men from
were very through and professional. They removed the dirt along side the affected wall and dug down about four feet. In doing" so, they removed the bushes that were growing there because their roots were affecting the structure of the wall. A new concrete
was laid on the outside basement wall with plastic piping to conduct the water to the French drain. Upon my request, instead of foliage being put back, a cement slab was laid over the hole that was dug to enlarge the driveway which is between my neighbor's house and mine.

-Anthony F.

's bid was more than 20% lower than competitor. We were able to schedule with minimal wait (2 weeks). Workers showed up on time and" went right to work. Those fellows work as hard as anyone I've ever seen. Moving dirt out and gravel into the crawl space. They took every precaution necessary to keep our house clean. Overall great job well done.

-Lani S.

+Join 2 Million People on Angie's List

Over 2 million people trust Angie's List.

  • Your Membership Includes:
  • Instant access to top rated businesses covering 700+ services
  • Our Complaint Resolution Team to help when a project goes bad
  • On-the-go access to our iPhone, Android, & iPad apps
Find top-rated Service Providers
See Verified Local Reviews
Join 2 Million People on Angie's List

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?

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.

water-powered sump pump
Basement Waterproofing

A water-powered back-up sump pump can operate and remove more than 1,000 gallons per hour.

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

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.

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


Cornelius Waterproofing Contractors Provider Name Locked
was hired to do work in my residence crawl space. This included a vapor
Cornelius Waterproofing Contractors Provider Name Locked
and some other related services. They showed up on time and completed the project within
2 days. Workers were professional and responsive to requests.
Overall a good job but somewhat pricey.
- Gerald K.

We had chronic water issues in this area which
Cornelius Waterproofing Contractors Provider Name Locked
us to call AA Action Water Proofing. They were extremely responsive and able to fit us into their schedule within a week. The crew was hard working and courteous to our home - taking precautions for dust control, etc. Three months and a few rainstorms later we have a dry basement. There was one aspect of the project not done to our satisfaction and they came within a week to fix it. I'd use them again and recommend them to friends and neighbors.
- Maria Victoria M.

I received three differing diagnosis of my foundation issue from three different bidders. This company was recommended by one of the other bidders and their price was competitive so I chose them. They came on time and cleaned up well.
- Peg R.

After the appointment was made he called to slightly adjust the scheduled time. The day of the appointment he arrived on-time.
Cornelius Waterproofing Contractors Provider Name Locked
came in and inspected the signs of leakage in my basement. He suspected that there were two leaks caused by cracks in the poured concrete foundation. He cut two small sections out of the wall to verify this. Sure enough, both locations had cracks. He was able to adjust his schedule to take care of them immediately. He cut open the wall to expose the cracks, and then used his epoxy and closed-cell foam system to seal them. He was very professional and cleaned up after completing the work.
- Bud P.

Cornelius Waterproofing Contractors Provider Name Locked
did a great job, anb told me what all was going on in the crawl space. He left his extension cord behind. Tried to let him know but never heard back. Still got it if he wants it! But seriously, great job. Exactly what I was looking for.
- Adam S.

Cornelius Waterproofing Contractors Provider Name Locked
came to my house to give us an estimate on fixing two cracks in our foundation and other leaks. He arrived on time, was very professional, and wrote up the proposal at our house prior to leaving. Most of the other contractors told me that they will send me an email with the proposal. After a month, I am still waiting for those emails. Therefore, I was very happy to see how professional and accurate
Cornelius Waterproofing Contractors Provider Name Locked
was in his proposal. We had a couple of questions later and called
Cornelius Waterproofing Contractors Provider Name Locked
. He always responded immediately. The office at
Cornelius Waterproofing Contractors Provider Name Locked
also called back to see if we had any questions. They have immediate response and follow-through. I was very impressed with both
Cornelius Waterproofing Contractors Provider Name Locked
Cornelius Waterproofing Contractors Provider Name Locked
. Thank you!
- Kathy M.

We talked with three companies to get quotes and all were pretty good. We liked the
Cornelius Waterproofing Contractors Provider Name Locked
offer the the most and especially liked how much time the sales rep took to talk us through all the possibilities. They were able to begin work within a week or two. They showed up on-time and completed all the work in one day. I've checked the crawl space multiple times over the last year and it has remained dry since they installed their system.
- Antonio N.

The crew lead
Cornelius Waterproofing Contractors Provider Name Locked
was very professional and willing to answer any and all questions. I was not home during the messy part of the job that included a trench around the inside of the basement walls. It was a 3 day job.
Cornelius Waterproofing Contractors Provider Name Locked
stayed til 9:00 the last day to complete the job.
- PAM 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

Aloha Design & Concrete Expert

3417 SE 162nd Avenue

Applied Exteriors

15600 SE For Mor Ct.

B&Js Handyman Services Portland

8520 SE Woodstock Blvd

Bach Custom Coatings Inc

13076 Frontier Pkwy
Oregon City

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

Construction Creations

12420 SW Alberta St.

Constructive Remodeling

5231 SE 111th Ave

Cornerstone NW LLC

PO Box 1264

David E. Logue Construction

3564 sw hillside dr

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

Engaging Environments LLC

15626 SE Martins S

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 Ave

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


On The Mark Construction LLC

8231 NE Wygant St



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

River Rock General Construction

18625 sw alexander st

Rupp Family Builders

10925 Sw Wilsonville Rd.

SealwiZe Northwest

P.O. Box 19594

Service Group Construction

10411 NE Fourth Plain,

Shepard Painting LLC

PO Box 182
Lake Oswego

Steve Zielinski, General Contractor

1414 SE 40th Ave

Stroud Built Structures

9208 Sweek Dr

Sunshine Painting PDX Inc

8437 SE 134th Dr

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

Join Angie's List to get the best local reviews in Cornelius.

What Does My Membership Include?
  • Instant access to reviews for 700+ services
  • Exclusive service discounts - up to 70 percent off!
  • Top-notch support from our live call center
How does Angie's List work?
1. Say you need a Waterproofing Contractor
2. Angie's List has tons of detailed, local reviews.
3. Find a winner, and book them.
4. Angie's List is there to resolve any issues.
Good Morning America
Fox News
USA Today
The Wall Street Journal
MSN money