
Crawl Space Cleaning & Encapsulation in Gig Harbor, WA
Keep your home protected from the ground up with crawl space services built for PNW conditions.







When I called to raise this, they denied any responsibility and offered excuses for why their air-hose method wouldn't have caught it — while refusing to remove it now except as a new, separately paid job. Whatever the brush's origin, their original service demonstrably failed to clear the duct.
I agreed to pay again anyway, just to get it resolved. I was told a manager would call me first to discuss it. No one called. I waited for the scheduled technician instead; no one showed. When I followed up, I learned the office had canceled the appointment without telling me.
I rescheduled a third time, and to avoid any confusion, I emailed a photo of the brush along with the access details (about 10 feet in, no crawlspace) and asked them to confirm they could do the job at the agreed price. The email went unanswered. When I called, I was assured the office had seen it, reviewed the photo, and confirmed the job and price.
Two weeks later, the technicians arrived — 90 minutes early, before I was ready — with no idea they were there to remove a stuck brush. After using about 15 minutes of my time, they concluded they couldn't remove it after all. I told them to leave and hired someone else.
Across three separate appointments and every point of contact — the initial cleaning a year ago, the manager callback, the scheduled visit, the confirmed job — Capitol Duct Cleaning did not follow through on a single commitment it made. I won't use them again.



In general, every person I've talked to or had out has been kind, courteous, knowledgable and really stepped up. For example, my air return wasn't installed quite right (tract homes), and the tech went and reworked the sheet metal and fixed a problem that was not even theirs. Just free of charge, just pride in work stuff.
Then we all learned that the builder didn't tighten the wires into the control board, so the cleaning vibrated it out and my heat pump went offline. Same time, a burning dust smell in a bathroom kind of lingered (builder left vents open/running during construction.) This time, the head dude himself comes out, they hook it all up, re-clean the entire system for good measure, and my price? Zero. They just did it.
I'll say too, I'm not an HVAC guy but I've worked around construction enough to know when people care, and I'm telling you, these guys are the people you want working on your house.






First, the good: Both Dominick and Quentin, the techs, were great. Very polite and thorough. And Adam, the owner, was very nice and quickly addressed my concerns when the work I expected wasn't done during the first visit.
Now, the not-great: I initially called for professional dryer vent cleaning when I saw lint build-up beyond my lint filter and couldn't reach it with my vacuum. But I quickly learned from the first tech that cleaning from the dryer's lint filter to the wall isn't included in their service. For an industry whose entire existence is based on the threat of dryer lint building up and causing a fire, it's weird to me that this business only addresses PART of the threat. When I spoke with the owner about this, to his credit, he eventually agreed to send a second tech out to provide that service at no extra charge.
The other bad is not that it took 4 business days to get this resolved, as I think that's a pretty reasonable timeframe. No, it's the fact that I've received 3 texts and 1 email since the 1st visit begging for a review. I don't need to be hounded daily (esp before the work is complete) to provide a review. And I don't need to be told that the techs' bonuses depend on getting a five-star review.
In the end, the work was performed well and the price seemed reasonable. But the bumps along the way were annoying.










I highly recommend Capitol Duct Cleaning, especially if you’re lucky enough to get Larry and Q. Outstanding service from start to finish!






I highly recommend this company!

We confidently refer our clients to Capitol Duct knowing they’ll receive exceptional service every time. Whether residential or commercial, we highly recommend reaching out to their team.




I also want to thank the front desk team, especially Amy and her co-worker. Because of my kids’ school event, they went out of their way to accommodate my schedule. I can’t thank them enough for their flexibility and kindness.
Overall, I’m extremely satisfied with the service. Highly recommended!







The team came out to clean our ductwork and dryer vent, and they did a thorough, professional job from start to finish. They were polite, genuinely friendly, and took the time to explain every step of the process, answering all our questions with patience. They also sanitized the system and gave helpful, non-pushy recommendations for maintaining clean indoor air. We immediately noticed a difference in air quality. Highly recommend!


ElIminates Mold & Mites
Keep Critters Out
Improves HVAC Efficiency
Preserves Wood Floors

Why Gig Harbor Crawl Spaces Need Cleaning
In Gig Harbor, coastal air, dense tree cover, and shaded lots create conditions where moisture can build up quickly under homes. Crescent Valley and Soundview Drive are especially prone to damp crawl spaces, which attract pests and degrade insulation. Crawl space cleaning and encapsulation help to reduce those risks before they spread indoors.
Not only does Capitol remove contaminated material and install sealing systems tailored to local climate conditions, our team also addresses any underlying issues they find along the way.
Crawl spaces in Gig Harbor often face excess moisture, pest activity, and insulation damage.
We seal and insulate to protect and reduce risks.
Using vapor barriers, galvanized mesh, and targeted sealing, we help block off common points of entry for moisture and pests. This improves crawl space conditions and betters energy performance inside the home.
Reviews







When I called to raise this, they denied any responsibility and offered excuses for why their air-hose method wouldn't have caught it — while refusing to remove it now except as a new, separately paid job. Whatever the brush's origin, their original service demonstrably failed to clear the duct.
I agreed to pay again anyway, just to get it resolved. I was told a manager would call me first to discuss it. No one called. I waited for the scheduled technician instead; no one showed. When I followed up, I learned the office had canceled the appointment without telling me.
I rescheduled a third time, and to avoid any confusion, I emailed a photo of the brush along with the access details (about 10 feet in, no crawlspace) and asked them to confirm they could do the job at the agreed price. The email went unanswered. When I called, I was assured the office had seen it, reviewed the photo, and confirmed the job and price.
Two weeks later, the technicians arrived — 90 minutes early, before I was ready — with no idea they were there to remove a stuck brush. After using about 15 minutes of my time, they concluded they couldn't remove it after all. I told them to leave and hired someone else.
Across three separate appointments and every point of contact — the initial cleaning a year ago, the manager callback, the scheduled visit, the confirmed job — Capitol Duct Cleaning did not follow through on a single commitment it made. I won't use them again.



In general, every person I've talked to or had out has been kind, courteous, knowledgable and really stepped up. For example, my air return wasn't installed quite right (tract homes), and the tech went and reworked the sheet metal and fixed a problem that was not even theirs. Just free of charge, just pride in work stuff.
Then we all learned that the builder didn't tighten the wires into the control board, so the cleaning vibrated it out and my heat pump went offline. Same time, a burning dust smell in a bathroom kind of lingered (builder left vents open/running during construction.) This time, the head dude himself comes out, they hook it all up, re-clean the entire system for good measure, and my price? Zero. They just did it.
I'll say too, I'm not an HVAC guy but I've worked around construction enough to know when people care, and I'm telling you, these guys are the people you want working on your house.






First, the good: Both Dominick and Quentin, the techs, were great. Very polite and thorough. And Adam, the owner, was very nice and quickly addressed my concerns when the work I expected wasn't done during the first visit.
Now, the not-great: I initially called for professional dryer vent cleaning when I saw lint build-up beyond my lint filter and couldn't reach it with my vacuum. But I quickly learned from the first tech that cleaning from the dryer's lint filter to the wall isn't included in their service. For an industry whose entire existence is based on the threat of dryer lint building up and causing a fire, it's weird to me that this business only addresses PART of the threat. When I spoke with the owner about this, to his credit, he eventually agreed to send a second tech out to provide that service at no extra charge.
The other bad is not that it took 4 business days to get this resolved, as I think that's a pretty reasonable timeframe. No, it's the fact that I've received 3 texts and 1 email since the 1st visit begging for a review. I don't need to be hounded daily (esp before the work is complete) to provide a review. And I don't need to be told that the techs' bonuses depend on getting a five-star review.
In the end, the work was performed well and the price seemed reasonable. But the bumps along the way were annoying.










I highly recommend Capitol Duct Cleaning, especially if you’re lucky enough to get Larry and Q. Outstanding service from start to finish!






I highly recommend this company!

We confidently refer our clients to Capitol Duct knowing they’ll receive exceptional service every time. Whether residential or commercial, we highly recommend reaching out to their team.




I also want to thank the front desk team, especially Amy and her co-worker. Because of my kids’ school event, they went out of their way to accommodate my schedule. I can’t thank them enough for their flexibility and kindness.
Overall, I’m extremely satisfied with the service. Highly recommended!







The team came out to clean our ductwork and dryer vent, and they did a thorough, professional job from start to finish. They were polite, genuinely friendly, and took the time to explain every step of the process, answering all our questions with patience. They also sanitized the system and gave helpful, non-pushy recommendations for maintaining clean indoor air. We immediately noticed a difference in air quality. Highly recommend!



Why Gig Harbor Homeowners Trust Capitol Duct
Our crews are experienced in working beneath Peninsula homes built into forested areas or close to the shoreline. We know how to spot the early signs of moisture damage and what it takes to build long-term solutions.
From quote to completion, our process is clear, efficient, and built around the needs of Gig Harbor homes.
How does our process work?
Start with a free inspection.
We begin by inspecting your crawl space to assess the cleanup and sealing work required. Whether your home is older construction or new build, we customize our approach to match the conditions beneath it.
1.Once approved, we handle the rest—quickly and cleanly.
Our team sets up a clean work perimeter at the crawl space entry, removes debris, and completes the sealing and encapsulation. We document everything and keep you informed from start to finish.
2.
Contact Us
Phone: 360-352-4693Open Hours
Weekdays
24 Hours
Sat/Sun
Closed
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FAQ
- What does crawl space cleaning involve?
- What is crawl space encapsulation?
- How often should I clean my crawl space?
- Is crawl space encapsulation worth it in Gig Harbor?
- Is it safe to clean my crawl space myself?
What does crawl space cleaning involve?
Crawl space cleaning typically includes removing debris, treating mold, addressing pests, and restoring damaged materials. Services often involve inspecting for moisture or structural issues, removing old insulation or vapor barriers, drying the area, and installing new insulation. Mold remediation and basic repairs may also be included. Most cleanings are completed in a day unless conditions are severe.
What is crawl space encapsulation?
Crawl space encapsulation seals off the space from outside air and moisture using a heavy-duty vapor barrier. It usually includes sealing foundation vents, adding insulation, and installing a dehumidifier or fan. The goal is to create a clean, dry environment under your home to prevent mold, rot, and energy loss.
How often should I clean my crawl space?
Inspect your crawl space once a year and clean it as needed, more often in damp areas like Gig Harbor. Seasonal checks (spring or fall) help catch issues early, such as moisture, mold, fallen insulation, or rodent activity. Immediate cleaning is recommended after a rodent infestation, flood, or sewage leak. In high-humidity regions like Western Washington, biannual inspections may be needed to stay ahead of mold and moisture problems.
Is crawl space encapsulation worth it in Gig Harbor?
Yes — especially in Gig Harbor damp climate. Encapsulation helps prevent mold, improves indoor air quality, and reduces heating costs. With high humidity and common crawl space moisture issues, it’s often a worthwhile investment for long-term home protection and comfort in the Pacific Northwest.
Is it safe to clean my crawl space myself?
DIY crawl space cleaning is possible for light tasks, but most jobs are best left to professionals. Crawl spaces often contain mold, animal waste, sharp objects, and electrical hazards. Professionals have protective gear, vacuums, and training to clean safely and thoroughly. If your crawl space has rodents, standing water, or heavy debris, hire a licensed team to avoid health and safety risks.

