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

Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
4.7(
42
)
Dry-rot, Water or Pest Damage - Major Repair

Serving Olivehurst, CA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: True professional

"We hired McCormick Home Builders to remodel our living room, and we are beyond pleased with the result. The team was professional, worked efficiently, and Aris design ideas made a huge difference. The room feels so much brighter and more spacious. This was the best decision we made for our home, and we were already planning our next remodel with them."
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+1

Response time6 hrs
Recommended by17%of homeowners
Professional Mold Inspections
5.0(
9
)
Indoor Air Quality TestingMold & Toxic Material Test

Serving Olivehurst, CA and surrounding areas

In business since 2018

Credit card accepted

"Excellent experience, very responsive. When I called to ask about their mold inspection services, Richard explained the process and answered all my questions thoroughly so we knew what to expect. Very professional and knowledgeable, we felt confident we weâ re hiring the right person for the job. The actual inspection was very thorough. The results of the test came back in the timeframe promised as well. Will gladly recommend."
Testing for excessive moisture
State of the art test equipment
Bio-Swab test for mold samples
At your service
Response time40 mins
Response rate100%
Recommended by100%of homeowners
Avatar for Nighthawk Home Inspections, LLC - Inicio  Facebook
Nighthawk Home Inspections, LLC - Inicio Facebook
4.9(
11
)
Indoor Air Quality Testing

Serving Olivehurst, CA and surrounding areas

In business since 2013

Free estimates

Warranties offered

"Rob Matlock was very responsive, professional, and thorough. I would recommend them to anyone. He was on time and did what he said he was going to do. It was a fast turn around time for getting the report. The report was thorough and well documented."
Back Patio
Back Patio
Left Side Storage
Front Bedroom
Dining Room

+14

Response time3 hrs
Recommended by100%of homeowners
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Mold Testing and Remediation FAQs, answered by experts

It depends on the type of AC unit and the extent of the mold growth. For example, if you have a small amount of mold in your central air conditioner, it’s worth cleaning it to protect your HVAC system and your health. In situations like these, you can often remove the mold yourself in a couple of hours. On the other hand, if you have a portable AC unit with a severe mold problem, it makes more sense to buy a new one. On average, replacing a portable AC unit costs $100 to $500.

Signs of mold under silicone caulk include discoloration or dark spots appearing through or around the caulk, a musty odor in the area, and visible growth on the surface of the caulk. Additionally, if the caulk feels soft or spongy, it could indicate moisture trapped underneath, which is a breeding ground for mold.

Yes, mold in the basement of your home will affect the conditions upstairs. Mold spores can travel through the air and into the supply vents of your home’s ventilation system. It is extremely important to remove any mold in your basement as soon as possible so it doesn’t affect the health of those living in the house.

Areas of your home may provide an ideal environment for green or black mold. Most molds love moisture and will thrive in wet or damp areas. Some types of mold, such as Stachybotrys chartarum, grow well on materials commonly used in homes, such as gypsum board and wood. Mold may also grow in areas where there are leaks, such as in bathrooms, kitchens, or basements.

Once again, contact with moisture is the culprit here, though water-resistant varieties of wallpaper are less likely to become wet and develop mold. Using a high-quality exhaust fan or dehumidifier and leaving the doors or windows cracked after bathing will keep this issue at bay. 

The Olivehurst, 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.