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TRUSTED BY POWAY, CA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon24
    Verified mold testing and remediation services reviews

Top-Rated Mold testing and remediation specialists in Poway - Updated Nov 2026

Avatar for Cal Coast Water Damage
Cal Coast Water Damage
5.0(
23
)
Toxicity and Mold - RemovalMold & Toxic Material Test - For BusinessToxicity and Mold - Removal - For Business

Serving Poway, CA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Cal Coast Water Damage handled a mold issue in my bathroom. Their team was well-prepared and equipped to tackle the problem. They conducted a thorough inspection, identified the affected areas, and promptly initiated mold removal procedures. Their attention to detail impressed me. They not only removed the mold but also implemented preventive measures to avoid recurrence. Iâ m grateful for their efficient service and dedication to maintaining a healthy living environment."
Living Room - PRE
Living Room - Post
Whole House Mold
Whole House Mold
Whole House Mold

+4

Response time8 hrs
Response rate97%
4 neighbors recently requested a quote
Pacific Environmental & Abatement Solutions Inc
4.6(
10
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business+2 more

Serving Poway, CA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"The tester was well versed in this area even showing the areas that were high in moisture. Very friendly and informative as well as professional. Made me comfortable with the experience she had. When the owner and maintenance worker failed she made me comfortable. Fae who had the credentials as well experience explained everything in detail. Definitely use Fae!!!"
1 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Maccraft
Maccraft
5.0(
11
)
Toxicity and Mold - RemovalToxicity and Mold - Removal - For Business

Serving Poway, CA and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"We were getting our house ready to put on the market when we found mold in the crawl space and one of the closets. MacCraft came out the same day we called— Alex walked us through exactly what needed to happen, gave us an estimate, and got it handled. They documented everything so we had paperwork to show buyers. House passed inspection without any issues. Highly recommend them"
Patio Wall Leak Repair
Patio Wall Leak Repair
Patio Wall Leak Repair
Inspection day
Drying, containment

+14

6 neighbors recently requested a quote
Avatar for HAFA ADAI TERMITE AND PEST SOLUTIONS INC
HAFA ADAI TERMITE AND PEST SOLUTIONS INC
4.9(
43
)
Dry-rot, Water or Pest Damage - Major Repair

Serving Poway, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Free estimates

Warranties offered

"We recently moved into a warehouse and needed to set up treatment and maintenance. Appreciate how quickly they came out and a quick process. Providing us with support and making it such an easy experience. They have been attentive to our needs and schedule. Would definitely recommend."
Pest Control/Exterminating Project
Pest Control/Exterminating Project
Pest Control/Exterminating Project
Pest Control/Exterminating Project
Pest Control/Exterminating Project

+99

6 neighbors recently requested a quote
Recommended by42%of homeowners
Avatar for Pacific Rim Eco
Pacific Rim Eco
5.0(
11
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business

Serving Poway, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"Very up front about the process. Professional, timely, communication was very good. The price quoted was the end price. No typical, well we didn't see this or that, so the price needs to change. Highly recommend Pacific Rim Ecosystemic"
Desert Home
ADU Inspection
5 neighbors recently requested a quote
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Mold Testing and Remediation FAQs, answered by experts

Usually, when you have mold, you will notice that your indoor air quality isn’t what it should be. You might notice dank odors, for instance, coming from your carpet, and it may feel damp or spongy. Or you may find that your family members are showing more allergy symptoms than usual, from coughing and sneezing to itchy, watery eyes.

And, of course, if you’ve recently experienced flooding or you live in a particularly humid environment, that’s a good sign you’re at risk for mold growth.

Bathroom mold tends to reappear due to the persistent presence of moisture and humidity, creating the ideal conditions for its growth. Since bathrooms are inherently humid environments, without proper ventilation, moisture accumulates on surfaces, providing a continuous food source for mold spores. Mold spores are present in the air and settle on damp surfaces to start growing rapidly. Additionally, if the underlying causes of mold, such as plumbing leaks or inadequate sealing, are not addressed, mold will return even after removal. To avoid recurring issues, addressing the root cause by improving ventilation, fixing leaks, and maintaining a dry bathroom environment through regular cleaning and maintenance is essential.

It’s possible that installing solar panels can lead to mold on the roof. The panels themselves are not the issue. Problems caused by improper installation—such as roof leaks and mounts that aren’t sealed properly—can cause mold. Another potential cause of mold is debris accumulation under panels, which can trap moisture. If you live somewhere with extreme snow, rain, or hail, your home could be more prone to mold.

Mold grows quickly. It typically begins to grow on drywall about 24 hours after exposure to moisture or humidity. Drywall is a porous material, which makes it particularly hospitable to mold growth. 

While mold growth begins after just a day or so, it can take a few weeks before the evidence becomes visible. Mold spores will typically appear on the drywall surface within three weeks of growth starting.

Toxic mold doesn't have a specific color; instead, toxicity depends on the type of mold and the mycotoxins it produces. Stachybotrys chartarum (also known as black mold) is notorious for its potential toxicity. However, not all molds appearing black are Stachybotrys chartarum. Mold species that appear in various colors, such as green, gray, brown, or black, can also produce mycotoxins. Therefore, it's essential to focus on identifying the type of mold through professional testing rather than relying solely on color to determine its toxicity.

The Poway, CA homeowners’ guide to mold testing and remediation services

From average costs to expert advice, get all the answers you need to get your job done.