Attic & Crawl Space Services in Seattle & King County
Your attic and crawl space are talking. We translate.
Insulation, mold remediation, crawl space repair, rodent proofing, and attic cleanup for homeowners across King County & Snohomish County. Licensed, owner-operated, and backed by 102+ five-star reviews.
Get a Free Estimate
No obligation. We respond within one business day.
Owner-led · No subcontractors · Written line-item pricing
WA Licensed
#GREENAL785CS
10+ Years
In business
Own Crew Only
Zero subcontractors
4.9 Stars
102+ Google reviews
What we do
Insulation, Crawl Space & Attic Services Under One Roof
Every service under one crew, one license, one point of contact.
Mold Remediation
Containment, removal, independent clearance testing.
Crawl Space Services
Moisture control, vapor barriers, structural repair.
Insulation Installation
Blown-in and batt to R-49. Rebate assistance for PSE and PUD.
Rodent Proofing
Full exclusion, contamination removal, re-insulation.
Why us
The estimate you get is the price you pay. No surprises. No change orders.
Every project is owner-supervised from first inspection to final walkthrough. We photograph what we find, explain what needs to happen, and hand you a written estimate with line items -before any work begins.
4.9
102+ Google reviews
10+
Years in business
100%
Owner-supervised
Why it matters here
Why Pacific Northwest Homes Need These Services
Western Washington's climate creates specific challenges for homes in King County and Snohomish County.
Moisture & Climate
Seattle averages 37 inches of rain annually. That moisture does not stop at your front door. It wicks through foundations, condenses in crawl spaces, and degrades insulation. Homes built before modern vapor barrier standards are especially vulnerable to mold growth, wood rot, and energy loss through damp insulation that has lost its R-value.
Local Rebates & Tax Credits
Puget Sound Energy, Snohomish PUD, and Seattle City Light all offer rebates for qualifying insulation and weatherization upgrades. Combined with federal tax credits under the Inflation Reduction Act (up to $1,200/year), insulation upgrades can pay for themselves faster than most homeowners expect. We help with the paperwork.
Aging Housing Stock
Most homes in King and Snohomish County were built between the 1940s and 1990s -before current insulation codes required R-49 in attics. Original fiberglass batts compress and settle over decades, losing up to half their insulating value. Add rodent contamination, poor ventilation, and deferred crawl space maintenance, and the result is higher energy bills and reduced comfort.
How it works
How Insulation & Crawl Space Projects Work
Every project follows the same process. No shortcuts, no handoffs, no change orders.
Tell us what’s going on
Call or fill out the form. Describe what you’re seeing. We schedule an inspection that fits your week.
We inspect and document
Our crew examines the space and photographs what we find. You get a plain-language explanation of the conditions.
You get a written estimate
Line-item pricing with material and labor separated. No vague ranges. No pressure to decide on the spot.
We do the work
Our crew completes the project on schedule. For mold jobs, an independent third party verifies clearance.
What customers say
“We found mold in our crawl space during a home inspection and didn’t know where to start. Sadeq’s team explained exactly what they’d do, how long it would take, and what it would cost. The clearance test came back clean. We closed on our house two weeks later.”
Sarah T.
Kent · Mold Remediation
“I called three companies about attic insulation. Two wouldn’t give me a price until they “came out to assess.” Green Attic sent me to their calculator and I had a number in thirty seconds. The final quote was $200 off from the estimate. That’s it.”
James R.
Mountlake Terrace · Attic Insulation
“Rats had been in our attic for months. Green Attic sealed every entry point, removed all the contaminated insulation, sanitized the space, and installed new blown-in. The whole project took two days. Our energy bill dropped $60 the next month.”
Diana M.
Renton · Rodent Proofing + Attic Cleanup
“Our crawl space had standing water and the vapor barrier was shredded. Sadeq came out the same week, showed us photos of everything, and had a written quote before he left. Crew finished in a day and a half. No surprises on the invoice.”
Michael K.
Auburn · Crawl Space Repair
“We needed the old insulation pulled out and new blown-in installed before closing on our home sale. Green Attic got it done in three days and helped us with the PSE rebate paperwork. Buyers were happy, we were happy.”
Linda P.
Kirkland · Insulation Installation
Frequently Asked Questions
Common questions from homeowners across King County and Snohomish County.
Do you use subcontractors?
No. Every project is completed by our own crew under the direct supervision of our owner, Sadeq. No subcontractor handoffs.
How does your pricing work?
You get a written estimate with line-item pricing before any work begins. The estimate you get is the price you pay -no revisions when the crew arrives, no surprise line items on the invoice.
Do you offer free inspections?
Yes. Every project starts with a full inspection where we photograph your attic, crawl space, or both, then walk you through what needs to happen and why. Same-week scheduling is available.
What areas do you serve?
We serve King County and Snohomish County, WA, including Seattle, Kent, Renton, Kirkland, Bothell, Lynnwood, Mountlake Terrace, and surrounding cities.
How is mold clearance verified?
For mold jobs, an independent third party verifies clearance -not our own crew. This ensures objective results you can trust.
Get started
Get a Free Insulation or Crawl Space Estimate
Tell us what’s happening. We’ll tell you the cost, the scope, and the timeline. Before any work begins.
(800) 931-1938
"We photograph everything we find during the inspection and walk you through it before you spend a dollar. No surprises, no pressure."
Sadeq, Owner of Green Attic
Get a Free Estimate
No obligation. We respond within one business day.