“We used Attic Star to do our insulation and rodent proofing/exclusion work. Zabi, our project manager was absolutely amazing. Very professional, courteous, and very helpful. He checked everything multiple times, took pictures and confirmed the work was done 100%. He showed me in the attic exactly what was done. They were very competitively priced too compared to others. Would recommend working with them.”
Moisture Barriers
Protect your home from excess moisture and water damage with professional moisture barrier installation designed to improve indoor air quality and preserve your property.
Happy customers? Always
Free estimates — zero pressure
Seattle Area locals
Licensed, Bonded And Insured
Family-run with heart
Quick replies, every time
Reliable moisture barrier solutions for your home
Excess moisture in your home can lead to mold, mildew, and structural damage. At Attic Star, we specialize in moisture barrier installation to protect your home from the damaging effects of moisture buildup. Our team uses high-quality materials and advanced techniques to install moisture barriers that keep your living spaces dry and healthy.
Whether you’re dealing with a damp crawl space, basement, or attic, our moisture barriers are designed to prevent water intrusion and control humidity, helping to improve your home’s energy efficiency and air quality.
Proper installation requires trained experts
Attic Star can expertly install plastic or foil sheeting of moisture / vapor barriers to your crawlspace, basement, building walls, attic or roof to prevent water vapors in your home air from penetrating into insulation and surrounding structure.
We are able to fully encapsulate any crawl space or exterior wall structures creating a permanent physical barrier between water, top soil and your home’s structure.
Attic Star are experts in moisture barrier / vapor barrier design and installation. We use the highest quality Visqueen and advanced sealing materials (up to 20mm thick).
The IRC (International Residential Code) recommends builders install a Class-I or -II vapor retarder on the interior side of homes in climate zones such as Seattle and Tacoma.
“In most U.S. climates, vapor barriers, or — more accurately — vapor diffusion retarders, should be part of a moisture control strategy for a home.”
Our moisture barrier installation process
01
Thorough inspection and assessment
We begin with a detailed inspection to assess the moisture levels in your home and identify areas at risk of water intrusion. This helps us determine the most effective moisture barrier solution for your needs.
03
Moisture barrier installation
Our team installs the moisture barrier with precision, ensuring it is securely placed and covers all vulnerable areas, such as crawl spaces and basements. We pay close attention to proper sealing and fitting to prevent water leaks.
02
Barrier selection and material preparation
Based on our inspection, we select the right moisture barrier materials for your home. Our barriers are designed to be durable, water-resistant, and energy-efficient.
04
Post-installation inspection and testing
After installation, we conduct a final inspection to ensure the barrier is effective and fully installed. We also perform moisture testing to verify the results and ensure long-term protection against water damage.
FAQs
What is a moisture barrier, and why do I need one?
A moisture barrier is a protective layer that prevents water and moisture from entering your home. It’s essential for preventing mold growth, wood rot, and structural damage, particularly in areas like crawl spaces and basements.
How long does moisture barrier installation take?
Most moisture barrier installations are completed within a day, depending on the size of the area and the complexity of the installation. We ensure minimal disruption to your home.
Can a moisture barrier help with humidity problems?
Yes. Moisture barriers help reduce humidity by blocking water vapor from entering your home, which can significantly improve indoor air quality and prevent mold growth.
Gallery
Hear from our customers
SS S.
Sean M.
“We had a disgusting situation. Not only did our newly purchased house have rats in our attic and walls, our attic insulation was covered in rat droppings. Our attic is also a very tight space with really low clearance. Zabi was our project manager and he provided excellent service and made sure the job was done well. We are now rat free and the old ratty, blown-in insulation has been replaced with nice R38 rolls. I would definitely recommend Attic Star.”
Neil S.
“Several years since becoming a customer and over a handful of visits, I continue to be impressed with the quality of the service and professionalism. They respond quickly to emails. They show up when they promise. Techs are courteous and thorough. They honor their warranty. Really a pleasure to work with.”
Kathleen B.
“These guys are great! They go above and beyond to get the job done. They did a great job of the removing the rodent droppings and insulation, replacing the insulation, and restricting rodent access in the future. By far the nicest thing was that they helped me get down all the stuff in the attic that my mother left when she passed. And then they hauled all the boxes and junk away too at no extra charge. Thanks guys!!!”
Dave G.
“My wife and I are seniors and the Attic Star crew has been so respectful and accommodating. From the initial contact, Attic Star has been prompt with messages and replies, and punctual, showing up early each morning, and putting in a full day’s hard work. Jay is the general manager of this project, and he is a pro, friendly, and somebody we feel very comfortable with what for us is a big project. Prices are extremely fair with no hidden charges or trying to upsell anything. A special thanks to the crew of Attic Star for a very hard job of working in the attic and crawl space.”
AJ M.
“We moved into our first house and quickly discovered that something was partying in the walls/in the attic every few nights. Attic Star came out, diagnosed our rat problem, reported how ineffective our insulation was, and quoted a price much lower than that of a similar competitor. One standout part of their service is that, for all 3 visits, they called ahead of time and showed up promptly as discussed, making it easy to accommodate the visits in the midst of work meetings and other activities. We are very happy with Attic Star’s service and will definitely be calling them again for future projects like replacing old ducts and installing fans to cool the attic.”
Get a fast moisture barrier installation estimate
Free inspection • Licensed, bonded & insured • Serving the Seattle area
Thank you for your request!
Our team will get in touch with you shortly to discuss next steps.