AC Maintenance & Repair

Crawl Space Cleaning, Encapsulation, & Insulation

Often overlooked during construction, crawl spaces become neglected afterthoughts. Uneven ground, debris, and poor ventilation create a breeding ground for moisture, pests, and potential structural issues. These problems can silently damage your home’s foundation, air quality, and energy efficiency for years.

Investing in crawl space maintenance benefits your entire home. Choose Black Hills for expert crawl space cleaning, encapsulation, and insulation services in Olympia and Thurston County, Washington.

Black Hill’s Crawl Space Services

We offer professional crawl space services for easier access, better energy efficiency, and pest prevention. 

Crawl Space Cleaning Services

Crawl spaces tend to be universally neglected, but they need cleaning just like any other part of your home. 

Our crawl space cleaning services include:

  • Thorough Clean Out: We remove trash, debris, and organic materials that can harbor pests, odors, and damage vapor barriers.
  • Old Insulation & Liner Removal: Fiberglass insulation is unsuitable for crawl spaces as it attracts rodents and absorbs moisture. We remove it along with old, ineffective liners.

Contact Black Hills for crawl space cleaning services in Olympia and throughout Thurston County. 

Crawl Space Access & Floor Grading Services

If your crawl space is difficult to get into and out of, it can make HVAC and sump pump repairs much more difficult. Limited access significantly reduces the likelihood of regular inspections, which means issues like water pooling, structural damage, and mold growth may be missed.

Black Hills can install easy-access crawl space entryways that will allow you and repair technicians in, while keeping pets and wildlife out. We can also regrade your crawl space floor to make movement easier and direct all water toward the sump pump. 

Crawl Space Mold Treatment Services

Mold can be a difficult foe to fight. It will constantly spread and affect your indoor air quality, which can increase allergy and asthma symptoms and damage your immune system and lungs. If your crawl space has mold, dealing with it should be a top priority. 

Ignoring the source of moisture allows mold to persist and worsen. Black Hills offers crawl space mold treatment services in Olympia and throughout Western Washington. We address the root cause and prevent its return with specialized treatments. 

crawl space cleaning, insulation & encapsulation

Crawl Space Ventilation & Moisture Control Services

Controlling water and moisture in your crawl space is incredibly important. Moisture can help create mold and wood rot, attract pests, and damage your structure. 

Here are some of the crawl space moisture control services we offer:

  • Interior Drainage and Floor Grading
  • Drainage Matting
  • Crawl Space Ventilation Installation
  • Sump Pump Installation & Repair
  • Crawl Space Encapsulation
  • Moisture & Vapor Barriers
  • Crawl Space Dehumidifier

Each crawl space is different and requires different solutions. We can prevent moisture buildup in your home with proper drainage, ventilation, sump pump setup, and barriers. 

Crawl Space Encapsulation Installation Service

Crawl space encapsulation creates a vapor barrier between your home and the outdoors, preventing moisture, pests, and air quality issues.

Some benefits of crawl space encapsulation installation include:

  • Keeps out moisture and prevents mold
  • Blocks insects
  • Improves indoor air quality
  • Increases home value
  • Helps insulate your home
  • Protects your floors, joists, and structure
  • Provides additional duct insulation

Contact us online or at 360-822-9659 to set up an appointment for crawl space cleaning, vapor barrier installation, ventilation, and encapsulation installation services in Olympia, Thurston County, and the surrounding areas. 

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AC & Heating Services
Why Choose Black Hills?
  • Licensed & Bonded
  • Straight-Forward Pricing
  • Maintenance Plans
  • 5-Star Reviews
  • Emergency Service Available
  • 100% Satisfaction Guarantee

Real Comments From Real People

So Very Impressed

- Debbie F.

Diamond Harris was the HVAC Design who came to my house to give me an estimate for a tankless water heater. I was so very impressed. His customer service, extensive knowledge, and professionalism certainly earn the grade of an A+. A true reflection on black hills Inc.'s hiring practice of hiring and retaining only the best employees. My estimate included not only the tankless water heater but the full installation. Diamond Harris is an asset to your company. Black hills inc was referred to me by my parents who had 3 major projects completed by black hills Inc., and loved working with them. With employees like Diamond, I now see why. Such a positive experience. Thank you. Please give my sincere thank-you to Diamond

Awesome Customer Service

- Lillian B.

We spoke to 3 different companies to get an estimate for a new system. Black Hills was the only company that did exactly what they said they would do from the start. I appreciate the text/photo letting me know who would be arriving and he came right on time. Travis was very polite and professional and answered all of our questions. The installation crew was also very quick and professional and cleaned up afterward. Follow-ups to make sure we were happy with service also appreciated. Awesome customer service

Great Service

- Jordon C.

Great service, No BS. Our AC was not keeping up, had a feeling it was because of a leaking coil on the inner unit. Was confirmed by Black Hills Inc. and was set-up with an appointment with a comfort specialist. After the survey with the specialist (Bento Yanez), we sat down and discussed options for replacement, turning out that full replacement with a heat pump/ac/new furnace would be the most efficient cost-effective option. Black Hills was able to access all the previous history on our unit since prior homeowners had used them, they could pull up everything that had previous work done. Looking forward to the replacement unit being installed in only 4 days, after the survey.



Looking for an expert’s insight on your next home improvement project? Our helpful team is standing by to answer questions and be of service.