Crawl Space & Attic Cleaning

Comprehensive Attic and Crawl Space Cleaning Solutions for a Healthier Home

If neglected over time, the crawl space and attic of your home can accumulate various contaminants, including sewage, debris, mold, dampness, rodent waste, and more.

These conditions not only lead to unpleasant odors and health hazards but can also result in significant structural damage to your home.

Mold growth can deteriorate wooden structures and compromise the integrity of the building. Dampness can lead to rot and corrosion of building materials, while rodent infestations may cause damages to insulation, wiring, and even structural components.

It’s crucial to address these issues promptly to mitigate potential damages and ensure a clean, safe, and structurally sound living environment for your home.

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(888) 246-5837

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The Essential Benefits of Cleaned and Sanitized Crawl Space or Attic

Enhanced Indoor Air Quality

Removing accumulated debris, moldy materials, and contaminants from the attic and crawl space helps improve indoor air quality, reducing the risk of respiratory issues and allergies.

Protects Structural Integrity

Removing dampness, moldy materials and contaminations can prevent structural damage to wooden components, insulation, and wiring, extending the lifespan of your home's structure.

Eliminates Odors

Cleaning removes sources of foul odors such as rodent waste and mold, creating a fresher and more pleasant living environment.

Healthier Living Environment

By reducing mold spores, allergens, and other contaminants, attic and crawl space cleaning helps create a healthier environment for occupants, minimizing the risk of respiratory illnesses and other health issues.

Peace of Mind

Knowing that your attic and crawl space are clean and free from potential hazards provides peace of mind, allowing you to fully enjoy your home without worrying about hidden issues impacting your family's health or the integrity of your property.

Our Proven Process

Initial assessment

Our team conducts a thorough inspection of your crawl space to evaluate its condition and determine the extent of cleaning required. We identify any issues such as water damage, mold growth, or pest infestations.

Before starting the Cleaning process, we prepare the work area by protecting walls, floors, siding, or nearby furniture. This precaution ensures that surrounding surfaces are shielded from any potential damage during the cleaning operation.

Our experts begin the removal of debris, old insulation, and other contaminants from your crawl space. Damaged or contaminated materials are safely torn out and securely packaged for disposal, ensuring no further contamination occurs.

For attic cleaning, we employ special vacuum machines to efficiently remove and collect blow-in insulation and debris into designated bags for disposal.

All surfaces within the crawl space and attic are thoroughly cleaned and sanitized using professional-grade disinfectants. We meticulously treat all surfaces to eliminate harmful contaminants.

Filled bags of debris are carefully transported and disposed of in accordance with local regulations and environmental guidelines. We ensure proper disposal methods to
minimize environmental impact and prevent further contamination.

After the process, your crawl space or attic is left prepared and clean, ready for the installation of fresh, clean materials, creating a welcoming environment for future work and continued use.


Northwest Crawl Space Services is family-owned right here in the Pacific Northwest. With years of experience, we’re licensed and bonded and always prioritize our customer’s satisfaction. Please read some of our 5-star reviews from our happy customers.

Myong Soo Kim
Myong Soo Kim
9 March 2023
Exceed their promises..excellent communication and great crew. Highly recommend.
Thomas Roberts
Thomas Roberts
9 March 2023
Rob and crew from NW Crawl Space did full remediation for our crawl space and attic, after finding evidence of rodents (mice) in both areas. Removed old crawl space insulation & vapor barrier, replaced heat-ducts that were damaged, & vacuumed out attic insulation and debris. Sealed openings in both areas to prevent rodents from returning. Traps set, with rodent control plan. Highly recommended!
Emily Davis
Emily Davis
3 March 2023
Northwest Crawl Space Services has been honest, professional, easy to work with, and has done excellent work on my home. I first approached the company looking for someone to reinsulate and clean out my mud room crawlspace-- it is an addition to the house and is open-air. Lior came by and noted that because NWCSS specializes in fiberglass insulation, they wouldn't be able to work on this part of my house, because it would require spray foam insulation to truly be rat and weather proofed. I really appreciated this up front honesty-- two previous contractors had given me bids to reinsulate with fiberglass, never mentioning the need for spray foam, and never saying that they wouldn't be able to do a proper job. I would have paid money to some other company for a shoddy, inappropriate "solution" if Lior had not filled me in. Lior even recommended some other companies to call that specialize in spray foam! After this helpful and informative experience, I knew right away when I discovered signs of rats in my main basement crawlspace that I wanted NWCSS to be the ones to work on the problem. Lior came by to check it out and did a very thorough inspection. His manner with clients is excellent-- I never felt like my questions were being dismissed. We set a date for a crew to come by to replace rat-infested insulation, remove the improperly installed vapor barrier, clean out debris, and reinstall vapor barrier to industry standards. The crew, Patrick and Chandler, were friendly, polite, and happy to answer questions. Savannah in the office has also been very friendly and quick to answer my questions regarding logistics and payment. Overall, my experience was excellent and I will re-hire NWCSS when it comes time to reinsulate and clean out my attic crawlspace.
jan ostrovsky
jan ostrovsky
6 February 2023
Matan gave us a fair estimate for the crawl space re-insulation and screening, and the work was done promptly. I was pleasantly surprised when the final bill came in about 15% UNDER the estimate. It’s nice to deal with a company which has the integrity to pass those savings on.
Dan Huang
Dan Huang
26 January 2023
Northwest Crawl Space is a trustful company to work with. They helped me install the French drain, replace the insulation and vapor barrier. Matan and his stuff did a great job. They will carefully protect your home when performing the job, clean the waste after the work is done, and come back to inspect if the work is good.
Scott Taylor
Scott Taylor
17 December 2022
We had Northwest crawlspace come out to inspect our crawlspace and they identify a lot of standing water as well as rodent activity in the insulation. As a result, we needed a full clean out of our crawlspace and new insulation, vapor barrier, drain and sump pump. The crew was professional, friendly and fast. The work was extremely well done, we recently had them come out to check everything and the technician confirmed it was one of the best installs he had seen. I would highly recommend this company to anyone.
Ricardo Salvatierra
Ricardo Salvatierra
16 December 2022
My experience with this company has been amazing. Lior (the owner) goes above and beyon every single aspect, super professional and always providing the best advice to avoid unnecessary expenses. They did the whole work in my crawlspace, sump pump, french drain, vapor barrier, etc... and results are great, 0 moisture. I would definitely recommend it.
Torrey Olsen
Torrey Olsen
15 December 2022
Lior and his NW Crawl Space Services team were everything we expected in professionals! They were on time, neat, though, communicative, polite, did the job as promised and then checked back with us as promised again to ensure that the job was done!
Wayne Appler
Wayne Appler
18 November 2022
I had Northwest Crawl Space Services remove all my rodent infested insulation and vapor barrier. They cleaned & disinfected my crawl and installed all new insulation and a sealed vapor barrier. The workers were very diligent and and skilled in their methods. I was given a quote up front and feel that I received a quality job that was worth every penny. I am beyond pleased with the company and would highly recommend them to everyone.

Frequently asked questions

What are common signs that my crawl space or attic needs cleaning?

Common signs that indicate the need for crawl space or attic cleaning include musty odors, visible mold growth, water stains on walls or ceilings, increased allergy symptoms among occupants, and pest infestations such as rodents or insects.

The time it takes to clean a crawl space or attic depends on factors such as the size of the space, the extent of contamination, and the cleaning methods used.

Generally, it can take anywhere from a few hours to a full day or more to complete the cleaning process.

Yes, typically, attic or crawl space cleaning is an integral part of insulation replacement. Before installing new insulation, it’s essential to clean the space
thoroughly to remove any debris, dust, mold, or other contaminants that could
compromise the effectiveness of the new insulation.

Yes, part of the cleaning process involves the removal of damaged and old materials to ensure a thorough cleaning and preparation of the space.

Therefore, after the cleaning is completed, it is necessary to proceed with further work to install new materials. This may include installing new insulation, vapor barrier, or other necessary material.

In most cases, it’s not necessary to vacate the house during crawl space or attic cleaning, especially if professional company is conducting the service.

However, it’s advisable to minimize exposure to airborne particles and cleaning agents by staying in a different part of the house, particularly if you have respiratory sensitivities or allergies.

Get Your Free Quote

Fill out this form and we will contact you within 24 hours.