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TRUSTED BY SANDY, OR HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon31
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Sandy

Avatar for John's Waterproofing
John's Waterproofing
4.3(
251
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Sandy, OR and surrounding areas

Approved

In business since 1974

Free estimates

Warranties offered

"I was glad John's Waterproofing was recommended to me to resolve the serious water problem in my large crawl space. With Jake's Design and Jeremy's remarkable crew, who were able to efficiently perform the many tasks needed to fix the problem, I now have a dry, clean and healthier crawl space under my home. Thanks to John's superb 5 star Company! Virginia Rossman"
Trim around fireplace was removed and mold found along the base
Fiberglass was drooping away from the home, removing its insulation value
Fiberglass Insulation was falling down in clumps from water weight
This window had been upgraded and given trim to give a clean and finished look
Re removed the below-grade sections of the wall and waterproofed with ThermalDry Radiant vapor barrier and installed a drain system around the interior perimeter

+41

Response time9 hrs
Response rate91%
16 neighbors recently requested a quote
Avatar for Better Basements and Waterproofing
Better Basements and Waterproofing
5.0(
10
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Sandy, OR and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

"Dylan Milroy went in and cleaned out the crawlspace put down plastic and dug a french drain and redirected all the downspouts so that the rain and we had now more water being drained. He is super easy to work honest he follows up to see if you are satisfied with his work.. I recommend him to everyone."
12mil vapor barrier
12mil vapor barrier
Standard Vapor Barrier
Exterior Drainage
Exterior Drainage

+3

2 neighbors recently requested a quote
Recommended by50%of homeowners
Avatar for John's Waterproofing Co.
John's Waterproofing Co.
4.0(
71
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Sandy, OR and surrounding areas

Approved

In business since 1974

Free estimates

Warranties offered

"Friends who know what our basement looked like before are flabbergasted. The information they send you after you contact them is super educational and everyone was prompt, polite, and professional. Wish we'd done this sooner."
Encapsulation System
Before Encapsulation
Before Interior Drain System
After Interior Drain System
Finished basement

+38

Response time6 hrs
208 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Crawlspace Masters, Inc.
Crawlspace Masters, Inc.
4.9(
94
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Sandy, OR and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"Overall the Crawlspace Crew did some great work for our basement area. The initial phone call was very informative, then they came on-site for a walk-thru and provided an itemized estimate we could understand. We expressed that budget was a concern and only elected to do some of the work, they were supportive of this and we were scheduled in within a week. The work was completed in a timely and thorough manner and we are very satisfied. Shout out to Dillon, for working within our budget, and being flexible on the specifics, I would definitely recommend this company/service to a friend or anyone in need."
After
After
After
After
After

+216

Response time2 days
56 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Wolcott Plumbing
Wolcott Plumbing
4.3(
12
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Sandy, OR and surrounding areas

Approved

In business since 1985

Free estimates

Small jobs welcome

*CURRENT SPECIALS: TANKLESS WATER HEATER INSTALLATION STARTING AT $5999 & 40% OFF DRAIN CLEANING AND DRAIN REPAIR* \n\nFor over 40 years, Wolcott Services has been Portland’s trusted partner for plumbing and drain solutions. We understand how stressful it can be when something goes wrong with your home’s vital systems, which is why our licensed experts respond quickly, diagnose accurately, and deliver lasting repairs. From clogged drains and sewer backups to water heater installs and whole-home plumbing upgrades, we’re here to help you restore comfort, protect your home, and get life back to normal.

Project Photos
Sewer Replacement
Current Specials & Deals
Response time1 day
Response rate100%
15 neighbors recently requested a quote
Avatar for Roots Plumbing LLC
Roots Plumbing LLC
5.0(
2
)
Basement Drainage Channels - Install

Serving Sandy, OR and surrounding areas

Approved

In business since 2024

Warranties offered

Credit card accepted

Roots Plumbing LLC knows how important time is to you. Our experienced and professional team will get to the root of your plumbing issues with top quality service and products to save you time and money so you can get on with your day worry free.\n\nwww.rootsplumbingllc.com\n\nhttps://g.page/r/CcSNBQIWtQHgEBM/review

Water Heater Upgrade
Water Heater Upgrade
Water Heater Upgrade
Additional Photos
Additional Photos

+32

Recommended by50%of homeowners
Avatar for Foundations First Northwest, LLC
Foundations First Northwest, LLC
5.0(
1
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Sandy, OR and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

Thousands of NW homeowners have trusted Foundations First Northwest to keep their homes safe, dry and stable since 2005. Nearly half of our business comes from referrals or repeat customers. We can help you too! Foundations First is the NW expert in home foundations, basement and crawl space waterproofing, concrete leveling, and wall stabilization.

Sump Pump
High Traffic Drain
Trench Drain
Rain Drain Extension
Basecrete

+13

Response time1 day
7 neighbors recently requested a quote
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Basement Waterproofing questions, answered by experts

There are several small, inexpensive upgrades you can make to upgrade your basement. Although you still need to adhere to building codes and obtain permits when necessary, you can complete small but mighty tasks like painting the masonry walls and installing entertainment devices to make the space more usable. 

No, your basement dehumidifier doesn’t need to be on 24/7. While it’s an excellent tool for tackling damp, musty air, especially in humid seasons, leaving it running nonstop can backfire. Over-drying the space can mess with your sinuses, warp wood, and even crack certain materials. Instead, only use your humidifier when moisture levels rise above 50%, and then give it a break when the humidity levels drop.

As the first layer of water protection for your roof deck and the building materials below, underlayment is designed to prevent water damage, so it’s okay if it gets wet. However, you shouldn’t rely solely on underlayment for protection. If rain interrupts your roof project and you have all of the underlayment down, you’ll likely be fine, but you should install shingles over that layer as soon as possible, as long-term exposure can lead to water damage.

Foundation repair uses methods such as underpinning, slab jacking, or application of hydraulic piers. Each technique is chosen based on structural needs, soil conditions, and damage extent, ensuring a stable and secure foundation.

Installing a bathroom in a basement isn’t a project for most homeowners. Many parts—plumbing, electricity, and carpentry—go into this project, each requiring expert-level knowledge and tools. One miscalculation can lead to very expensive repairs. Plus, some homeowner’s insurance might not pay for damages caused by a homeowner DIYing this project. You can protect yourself by allowing the pros to complete this job for you. 

The Sandy, OR homeowners’ guide to basement waterproofing services

From average costs to expert advice, get all the answers you need to get your job done.