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TRUSTED BY SPRING VALLEY, CA HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon13
    Verified mold testing and remediation services reviews

Top-Rated Mold testing and remediation specialists in Spring Valley - 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 Spring Valley, CA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Cal Coast communication through the whole process was what I needed. I didnâ t know the questions I should ask. I was scared and nervous. Iâ ve never been through this before. Cal Coast took care of everything and problem solved for me throughout the whole process. Not only did he do the water mitigation and mold removal, I hired him to do the put back as well. Everything was done on time. I highly recommend them."
Living Room - PRE
Living Room - Post
Whole House Mold
Whole House Mold
Whole House Mold

+4

Response time8 hrs
Response rate97%
5 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 Spring Valley, 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 Risk Free Serv Water Damage Repair San Diego
Risk Free Serv Water Damage Repair San Diego
5.0(
7
)
Toxicity and Mold - RemovalToxicity and Mold - Removal - For Business

Serving Spring Valley, CA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"The two gentlemen from Risk Free Serv were knowledgeable and professional. They worked well together and took care of my home as if it were their own. They found mold behind the bathroom vanity and kept me informed of the process as they removed the mold, vanity, and drywall. I appreciated that they didn't try to charge me for unnecessary services as some other companies did."
Dishwasher overflow 1
Dishwasher overflow 2
Dishwasher overflow 3
Dishwasher overflow 4
Dishwasher overflow 5

+5

Response time4 hrs
Recommended by100%of homeowners
Avatar for HOME RESTORATION LLC
HOME RESTORATION LLC
5.0(
3
)
Toxicity and Mold - Removal

Serving Spring Valley, CA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"I recently hired Home Restoration for mold remediation, and I couldn?t be happier with the results. The team was friendly, professional, and really cared about making sure everything was done right. They made a stressful situation so much easier?highly recommend them!"
 (BURST WATER HEATER)
 (BURST WATER HEATER)
 (BURST WATER HEATER)
 (BURST WATER HEATER)
 (BURST WATER HEATER)

+4

Response time5 hrs
Response rate100%
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Mold Testing and Remediation FAQs, answered by experts

Yes, if there is mold in your drywall mud and you then use it to build walls in your house—or if mold develops in your set drywall, like it can in hot and humid areas—it can lead to illness. Mold in your drywall (or other parts of your home) can make existing respiratory conditions or allergies worse, and the effect can be more intense for those who have existing health issues or compromised immune systems.

You can kill slime mold with organic fungicides and commercial products like BioSafe Disease Control. However, the following substances will also get rid of slime mold: baking soda, potassium bicarbonate, cornmeal, cornmeal tea, and hydrogen peroxide. Typically, these fungi are cosmetic and rarely harmful to plants, so it’s OK to wait it out. The matter will disappear in a few days to two weeks.

Yes, it is generally unhealthy and can be dangerous to live in a damp basement. The damp air can negatively affect your breathing and lungs, and the moisture promotes mold growth and pest infestations. Inhaling mold spores or waste particles from insects and rodents attracted to the moisture can be hazardous. This damp, moldy air can also circulate into your main living area. It is crucial to resolve any moisture problems and implement preventative measures before using your basement as a living space.

Mushrooms do not harm your yard. In fact, they can actually help improve your lawn health by decomposing woody organic matter in your soil, and breaking it down into nutrients that feed your grass and plants.

Mold in HVAC ducts is a relatively common issue that homeowners struggle with—especially in humid climates or homes with poor ventilation. Moisture from condensation, combined with dust and organic debris, creates the perfect environment for mold growth. Homes with high humidity, leaky ducts, or clogged drains are more prone to this issue. Regular inspections and proper HVAC maintenance significantly reduce the risk of mold developing in your ducts.

The Spring Valley, 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.