Renton, WA
Mold Inspection and Testing in Renton, WA
Renton, WA has 10 mold inspection and testing companies in our listings, 4 list themselves as open 24 hours and the most reviewed is Perma Dry Waterproofing & Drainage with 127 reviews.
10 Companies Doing Mold Testing Work in Renton
- 1
Drytrace Mold Removal
Google rating 5.0 from 3 Google reviews
Verified Remediation Pro
Water DamageMoldMold Testing
- 2
- 3
Perma Dry Waterproofing & Drainage
Google rating 4.0 from 127 Google reviews
Verified Remediation Pro
Water DamageMoldMold Testing
- 4
FireWater Restoration Services | DKI24/7
Google rating 4.5 from 106 Google reviews
Highly Rated 2026
Water DamageMoldMold TestingFire and SmokeSewage
- 5
Casey Colors Painting
Google rating 5.0 from 5 Google reviews
Verified Remediation Pro
Water DamageMoldMold TestingFire and Smoke
- 6
First Response Water Damage24/7
Google rating 4.8 from 53 Google reviews
Top Rated 2026
Water DamageMoldMold TestingFire and SmokeSewage
- 7
Diligence Construction & Restoration24/7
Google rating 4.7 from 12 Google reviews
Highly Rated 2026
Water DamageMoldMold TestingFire and Smoke
- 8
- 9
XP Inspection Services
Google rating 5.0 from 120 Google reviews
Best in Renton 2026Top Rated 2026
Mold TestingAsbestos
- 10
Sherlock Home Inspector LLC24/7
Google rating 5.0 from 95 Google reviews
Top Rated 2026
Mold TestingAsbestosLead Paint
Hire an Independent Inspector
A mold inspector tells you whether you have a problem, where it is and what caused it. A remediator removes it. When the same company does both, it has a reason to find mold. If you can, hire an inspector who does not do remediation, and ask the remediator to follow that inspector’s written plan.
Ask the inspector what the visit includes. A good one looks for the moisture source first, uses a moisture meter and often a thermal camera, and only takes air or surface samples when the result will change what you do. After the work, a clearance test by the same independent inspector shows whether the job is done.
Can You Handle It Yourself
Call a pro
Home test kits that grow spores in a dish almost always grow something, because mold spores are everywhere. They cannot tell you whether you have a problem. A moisture meter and a flashlight will tell you more for less money.
What It Costs Around Renton
Prices in the Seattle-Tacoma-Bellevue, WA area run about 11 percent above the national average, so local jobs tend to cost more than the national figures.
| Job | Typical in Renton | National typical |
|---|---|---|
| Mold Inspection and Testingper visit, a visual inspection | $225 to $650 | $200 to $600 |
| Mold Inspection and Testingper visit, an inspection with samples | $325 to $1,100 | $300 to $1,000 |
| Mold Inspection and Testingper visit, a clearance test | $325 to $900 | $300 to $800 |
Questions to Ask Before You Hire
- Do you also do remediation? If so, who checks your work?
- How many air samples will you take, and will you take an outdoor control sample?
- Which lab analyzes the samples, and is it accredited?
- Will the report include moisture readings and photos, not only lab numbers?
- Are you licensed as a mold assessor where this home is?
Guides for This Job
- Call a proMold Testing, When It Is Worth It and How to Read a Lab ReportWhen a mold test is worth paying for, which kind to ask for, why store kits mislead, and how to read spore counts, outdoor controls and a lab report yourself.
- DIY with careMold Inspection and Testing Cost, and Who to HireTypical mold inspection and testing costs, from visual checks to air and surface samples, lab fees and clearance, and how to hire an independent inspector.
- Call a proMold Testing, When It Is Worth It and How to Read a Lab ReportWhen a mold test is worth paying for, which kind to ask for, why store kits mislead, and how to read spore counts, outdoor controls and a lab report yourself.
- DIY with careAttic Mold on Roof Sheathing, Causes and FixesWhy mold grows on attic roof sheathing, how to find the cause, the fixes that stop it for good, and how to tell a cosmetic stain from a roof that needs work.
Questions People Ask
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