Top-rated foundation, basement or crawlspace waterproofing / encapsulation pros.

Get matched with top foundation, basement or crawlspace waterproofing / encapsulation pros in Olympia, WA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Top-Rated Foundation, basement or crawlspace waterproofing / encapsulation pros in Olympia - Updated Nov 2026

Avatar for Wu Construction
Wu Construction
4.6(
238
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Olympia, WA and surrounding areas

Approved

In business since 1983

Free estimates

Emergency services offered

"Foundation Repairs - We had dry rotted wooden posts due to concrete pads being buried below the dirt. Wu Construction replaced the posts/ piers and placed new concrete pads on top of the existing to raise them above the dirt. I had some questions and Victor Wu followed up with me. Victor is very professional, honest and fairly priced. I would recommend them to anyone who needed these services as well."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+11

Response time10 mins
Response rate100%
17 neighbors recently requested a quote
Avatar for Andy Construction LLC
Andy Construction LLC
4.9(
30
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Olympia, WA and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Response time8 hrs
1 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for MTU Services LLC
MTU Services LLC
5.0(
5
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Olympia, WA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"We’ve had a lot of crews in our home for various projects over the years, and I have to say this was one of the most courteous. They worked hard, navigating through our kitchen to access the basement and I really appreciated their efforts. Thank you MTU, we now have safe walls in our cellar and fresh beams to keep the house standing ;)"
Elevator pit waterproofing and sealing
Piers under an existing home
Piers under an existing homes middle wall
Solutions/Answers
Response time1 day
Response rate100%
4 neighbors recently requested a quote
Avatar for Diversified Crawlspace Servs
Diversified Crawlspace Servs
3.9(
25
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Olympia, WA and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"Excellent company! These guys did a great job of installing insulation in my attic as well as the removal of old insulation. Also, the clean-up job after the job was great too. The technicians were knowledgeable and friendly. No issue in recommending."
crawlspace drainage
crawlspace drainage
crawlspace drainage
crawlspace drainage
crawlspace drainage

+18

Recommended by60%of homeowners
Avatar for BUILDING PERFORMANCE PROS LLC
BUILDING PERFORMANCE PROS LLC
4.5(
8
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Olympia, WA and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"The workers were on time. Very efficient. They did a blower door test and found the air leaks and insulated these areas. Blew installation above the garage, cleaned out the crawl space and put new installation there and basement. Found a water leak from my toilet,Thank goodness. Covered everything in the basement and swept and cleaned up after. I would recommend them!"
Response time2 days
8 neighbors recently requested a quote
Avatar for Sump Pump Wizards LLC
Sump Pump Wizards LLC
5.0(
1
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Olympia, WA and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Response time4 hrs
Avatar for TerraFirma Foundation Systems
TerraFirma Foundation Systems
4.7(
12
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Olympia, WA and surrounding areas

In business since 2005

Free estimates

Warranties offered

"Because of settling, the concrete porch was pulling away from my house. The TerraFirma sales rep who came out did a great job of explaining the Polyfil procedure. The crew was extremely polite and respectful, did a great job and the area was completely clean when they left. I would have no hesitation using TerraFirma again."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+11

Response time8 hrs
Response rate100%
Recommended by80%of homeowners
Avatar for Rain Pros Inc
Rain Pros Inc
4.7(
435
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Olympia, WA and surrounding areas

In business since 2006

Free estimates

Warranties offered

"I was stressed to the max thinking the home I just purchased had a foundation issue after being told so many things from different companies I turned to Angi’s list and I had totally forgot about my appointment with Rainpros Joel ended up doing the inspection and literally saving me from a stress stroke. He was patient and explained everything as clear as he could over the phone. I have a busy life so it’s not easy to work with me and Joel did just that. Even through a misunderstanding he was still very conscientious and quoted us a great price for the work done and gave me back some peace knowing the foundation wasn’t the problem."
Before
Sump Pit with Sump Pump
Downspout coming off of a barn
4-inch PVC installed with the black asphalt emulsion and custom made flashing up.
Excavated

+51

Recommended by94%of homeowners
Showing 1-10 of 47
FAQs for foundation, basement or crawlspace waterproofing / encapsulation projects in Olympia, WA

Yes, crawl space encapsulation is a good investment. It improves your home's energy efficiency and air quality, boosting its value. With routine inspections and maintenance, encapsulation provides a long-lasting solution to moisture and pest issues. Regular check-ups protect your investment, enhance energy efficiency, and maintain your home's structural integrity. If your home is prone to pests or moisture seepage, encapsulating your crawl space is definitely worth it.

A vapor barrier is a thin sheet of plastic that prevents moisture from seeping into your crawl space, while insulation prevents unconditioned air from entering. Combining both insulation and a vapor barrier creates a dry, temperature-stable environment. Some insulation products serve both purposes, enhancing energy efficiency and protecting against moisture and temperature fluctuations.

The Olympia, WA homeowners’ guide to foundation, basement or crawlspace waterproofing / encapsulations

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