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Find Mold testing and remediation specialists in Knightsen

Avatar for Javier Vasquez Plastering Flooring & Decking, Inc.

Javier Vasquez Plastering Flooring & Decking, Inc.

4.74(
47
)
Approved Pro

Javier Vasquez Plastering Flooring & Decking, Inc.

4.74(
47
)
Approved Pro
Customers say: Quality work
54 local quotes requested
26 years of experience

Javier Vazquez Plastering, We take great pride in our extreme professionalism, timeliness, and the superior customer service that we provide on every job. We make sure to develop a lasting relationship so that the next time service is needed, there will be no question on who to call. Give us a call today so we can answer all of your questions. Satisfaction is guaranteed!

"Javier was thorough and did a quality job. He checked in with me to make sure everything was done correctly. His guy, Miguel was professional, helpful and did a really good job on the interior/exterior. They were quick with giving me a quote and getting the job done. Very good communication. Highly recommend, thanks!"

Vi C on August 2025

Javier Vazquez Plastering, We take great pride in our extreme professionalism, timeliness, and the superior customer service that we provide on every job. We make sure to develop a lasting relationship so that the next time service is needed, there will be no question on who to call. Give us a call today so we can answer all of your questions. Satisfaction is guaranteed!

"Javier was thorough and did a quality job. He checked in with me to make sure everything was done correctly. His guy, Miguel was professional, helpful and did a really good job on the interior/exterior. They were quick with giving me a quote and getting the job done. Very good communication. Highly recommend, thanks!"

Vi C on August 2025


Curtis Roberts AAA Mold Inspection

5.00(
2
)
Approved Pro

Curtis Roberts AAA Mold Inspection

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
29 local quotes requested

Curtis Roberts AAA Mold Inspection Services is certified, insured, and bonded. I have performed testing since 2004. In most cases (mold) test results come back the next business day. We provide you with professional assistance--certified mold inspectors--to find mold that could be hidden inside your walls, ceilings, floors, basement, crawl space, attic, as well as HVAC equipment and ducts. All technicians are certified and experienced in mold inspection (mold assessment) and mold testing; training includes sampling protocols and use of state-of-the-art equipment. Call us for an estimate today!

Curtis Roberts AAA Mold Inspection Services is certified, insured, and bonded. I have performed testing since 2004. In most cases (mold) test results come back the next business day. We provide you with professional assistance--certified mold inspectors--to find mold that could be hidden inside your walls, ceilings, floors, basement, crawl space, attic, as well as HVAC equipment and ducts. All technicians are certified and experienced in mold inspection (mold assessment) and mold testing; training includes sampling protocols and use of state-of-the-art equipment. Call us for an estimate today!


Avatar for Bio-One of Modesto

Bio-One of Modesto

No reviews yet

Bio-One of Modesto

No reviews yet
22 years of experience

Our company specializes in in trauma and crime scene cleaning however we can take on most jobs that involve biohazard such as blood spills, animal urine and feces, decomposition, and any other bodily fluid that comes from the human or animal body. Not only do we offer biohazard cleaning we also offer cleaning services for hoarding, gross filth, and mold remediation. We are owner operated so that we make sure that we stay connected to our community. Our company emphasizes "Help First, Business Second.

Our company specializes in in trauma and crime scene cleaning however we can take on most jobs that involve biohazard such as blood spills, animal urine and feces, decomposition, and any other bodily fluid that comes from the human or animal body. Not only do we offer biohazard cleaning we also offer cleaning services for hoarding, gross filth, and mold remediation. We are owner operated so that we make sure that we stay connected to our community. Our company emphasizes "Help First, Business Second.


Avatar for California Healthy Home Inspections, LLC

California Healthy Home Inspections, LLC

No reviews yet

California Healthy Home Inspections, LLC

No reviews yet
5 years of experience

We are a family-owned business with a professional team that comes out to you at your location and performs various types of Toxin Inspections like Mold, Asbestos, Lead, Radon, and Consulting Services related to indoor air quality, serving residential, SML commercial, and real estate clients. An ounce of prevention is better than a pound of cure, don't medicate, and let us investigate because our health is the most important asset we have, from what you breathe to what you touch, helping you improve your Indoor Air Quality and create a safe environment for occupants. Using Scientific Technologies & Equipment and the labs to inspect, detect and deliver the full analytical reports in a quick turnaround time. We stand behind our work and strive to exceed your expectations. It is our goal to win over every client every time, treating our customers how we would expect to be treated. Our motto, KNOWLEDGE IS POWER!

We are a family-owned business with a professional team that comes out to you at your location and performs various types of Toxin Inspections like Mold, Asbestos, Lead, Radon, and Consulting Services related to indoor air quality, serving residential, SML commercial, and real estate clients. An ounce of prevention is better than a pound of cure, don't medicate, and let us investigate because our health is the most important asset we have, from what you breathe to what you touch, helping you improve your Indoor Air Quality and create a safe environment for occupants. Using Scientific Technologies & Equipment and the labs to inspect, detect and deliver the full analytical reports in a quick turnaround time. We stand behind our work and strive to exceed your expectations. It is our goal to win over every client every time, treating our customers how we would expect to be treated. Our motto, KNOWLEDGE IS POWER!


"Mold Warriors cared more about eradicating my mold - than I even did - and didn't stop until they found and removed every location of mold infestation. Their personal mission was to make sure my home was mold-free and they did it in a way that was remarkably professional, competent, responsive and successful. The first and only call I'll ever have to make with respect to mold infestation in my house. Can't recommend Patrick and Mold Warriors highly enough."

Robert S on August 2019

"Mold Warriors cared more about eradicating my mold - than I even did - and didn't stop until they found and removed every location of mold infestation. Their personal mission was to make sure my home was mold-free and they did it in a way that was remarkably professional, competent, responsive and successful. The first and only call I'll ever have to make with respect to mold infestation in my house. Can't recommend Patrick and Mold Warriors highly enough."

Robert S on August 2019


Avatar for Cosmic Renovation and Roofing Inc

Cosmic Renovation and Roofing Inc

4.53(
17
)

Cosmic Renovation and Roofing Inc

4.53(
17
)
Customers say: Quick response
7 years of experience

At Cosmic Renovation and Roofing, we offer years of professional experience and product expertise. We specialize in high quality residential upgrades and services such as roof installations, cool roof paint, solar installations, windows, full home remodeling including kitchen, bath and room additions as well as hardscape and historical house renovation. We take pride in combining innovation, industry knowledge and exceptional customer care with every project we do.

"Project Lead: Ben The Job: Rooftop Deck above garage needed to be ripped out and replace, new drainage needed to be installed The Good: Ben was very enthusiastic about the job and is a very nice guy. He made sure to explain what the job would entail, what needed to be done, why the problems were happening, ect. He was understanding about the funds for the job being locked up until the sale of one of my other properties went through. The beginning of the job went great, the framing was done well, more ceiling beams had to be replaced than originally thought which they did for no extra charge and they had some higher quality top layer material left over from another job that they used at no additional cost to us. The Bad: Going back to the demo part of the job, we were told that there was no need to move the boxes and various other things we had in the garage out or to cover them. Nobody covered them and so now we have boxes full of plywood debris from ripping up the deck. After the initial large work was done, a team was no longer sent out to do the finishing work. It was one guy, who came out 2-3 times a week, and we rarely got any notice on what days those would be. Often we were told he would be showing up one day, but then no one would show up with no explanation. Repeatedly we were told “oh, the guy is going to come out and finish the job on x day”, but then no one would show up, and when he did the job was not finished. We were told the job would take 10 days (and that that was estimating on the long side). The job was started on March 29th and didn’t finish until May 19th. It happened several times that Ben asked if I was free for him to come and discuss things later in the day, but then he would be a no show. There was a general lack of quality control with the finished work. Instead of quality control being done by the contractor, I had to go and find all of the problems myself (of which there were many on the first pass) and complain about them. Then the one guy came out a week later to fix them, but then new things came up, and I would have to complain about them, ect. In the end I just kind of felt it was ‘good enough’ and was so exhausted with the back and forth and taking time out of my work day to inspect the work and discuss what was wrong I just said it was fine so I could go on with my life."

William G on May 2022

At Cosmic Renovation and Roofing, we offer years of professional experience and product expertise. We specialize in high quality residential upgrades and services such as roof installations, cool roof paint, solar installations, windows, full home remodeling including kitchen, bath and room additions as well as hardscape and historical house renovation. We take pride in combining innovation, industry knowledge and exceptional customer care with every project we do.

"Project Lead: Ben The Job: Rooftop Deck above garage needed to be ripped out and replace, new drainage needed to be installed The Good: Ben was very enthusiastic about the job and is a very nice guy. He made sure to explain what the job would entail, what needed to be done, why the problems were happening, ect. He was understanding about the funds for the job being locked up until the sale of one of my other properties went through. The beginning of the job went great, the framing was done well, more ceiling beams had to be replaced than originally thought which they did for no extra charge and they had some higher quality top layer material left over from another job that they used at no additional cost to us. The Bad: Going back to the demo part of the job, we were told that there was no need to move the boxes and various other things we had in the garage out or to cover them. Nobody covered them and so now we have boxes full of plywood debris from ripping up the deck. After the initial large work was done, a team was no longer sent out to do the finishing work. It was one guy, who came out 2-3 times a week, and we rarely got any notice on what days those would be. Often we were told he would be showing up one day, but then no one would show up with no explanation. Repeatedly we were told “oh, the guy is going to come out and finish the job on x day”, but then no one would show up, and when he did the job was not finished. We were told the job would take 10 days (and that that was estimating on the long side). The job was started on March 29th and didn’t finish until May 19th. It happened several times that Ben asked if I was free for him to come and discuss things later in the day, but then he would be a no show. There was a general lack of quality control with the finished work. Instead of quality control being done by the contractor, I had to go and find all of the problems myself (of which there were many on the first pass) and complain about them. Then the one guy came out a week later to fix them, but then new things came up, and I would have to complain about them, ect. In the end I just kind of felt it was ‘good enough’ and was so exhausted with the back and forth and taking time out of my work day to inspect the work and discuss what was wrong I just said it was fine so I could go on with my life."

William G on May 2022


Avatar for Built Right Construction & Design

Built Right Construction & Design

4.96(
24
)

Built Right Construction & Design

4.96(
24
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Thank you for considering Built Right Flooring Roofing and Restoration Pro Services. Our range of essential repairs and improvements is crafted to provide unparalleled peace of mind. Our Services: Roof Repair & Replacement: Safeguard your property with our professional roof services, addressing issues such as fixing leaks, replacing damaged shingles, or even providing complete roof replacement. Flooring Sales & Installation: Explore our showroom, where a diverse array of floor samples awaits your selection for your next project. Our service experts efficiently schedule floor installations within the same week, ensuring prompt and top-notch service. Fire & Water Damage Restoration: In times of disaster, consider us your dedicated partners in recovery. Our specialized team excels in restoring and repairing damage caused by fire, water, and more. Should you need to file a claim, entrust our experts to handle communication with your insurance provider—a service provided free of charge. Mold Damage Repairs: Combat mold effectively with our remediation and repair services. We are dedicated to creating a healthy living environment for you and your loved ones, ensuring your property remains safe and mold-free. We are committed to making your home or business safe, comfortable, and aesthetically pleasing. Taking the first step toward transforming your property is simple—contact us on our website @ builtrightcnd.com today for a free consultation! #flooring #waterdamage #firedamage #contractors #homeinsuranceclaims #businessinsurance claims

"Carlos and his team were always polite and professional, arriving first thing in the morning and staying as long as needed to complete the task. Work was top notch and seemed to be priced well. Owners of the company came by to check on completion. Very pleased."

Maggie C on February 2021

Thank you for considering Built Right Flooring Roofing and Restoration Pro Services. Our range of essential repairs and improvements is crafted to provide unparalleled peace of mind. Our Services: Roof Repair & Replacement: Safeguard your property with our professional roof services, addressing issues such as fixing leaks, replacing damaged shingles, or even providing complete roof replacement. Flooring Sales & Installation: Explore our showroom, where a diverse array of floor samples awaits your selection for your next project. Our service experts efficiently schedule floor installations within the same week, ensuring prompt and top-notch service. Fire & Water Damage Restoration: In times of disaster, consider us your dedicated partners in recovery. Our specialized team excels in restoring and repairing damage caused by fire, water, and more. Should you need to file a claim, entrust our experts to handle communication with your insurance provider—a service provided free of charge. Mold Damage Repairs: Combat mold effectively with our remediation and repair services. We are dedicated to creating a healthy living environment for you and your loved ones, ensuring your property remains safe and mold-free. We are committed to making your home or business safe, comfortable, and aesthetically pleasing. Taking the first step toward transforming your property is simple—contact us on our website @ builtrightcnd.com today for a free consultation! #flooring #waterdamage #firedamage #contractors #homeinsuranceclaims #businessinsurance claims

"Carlos and his team were always polite and professional, arriving first thing in the morning and staying as long as needed to complete the task. Work was top notch and seemed to be priced well. Owners of the company came by to check on completion. Very pleased."

Maggie C on February 2021


Avatar for PuroClean of Antioch

PuroClean of Antioch

5.00(
1
)

PuroClean of Antioch

5.00(
1
)
8 years of experience

Damage remediation from Water, Mold, Smoke, Cigarette smell, Disinfection services for Covid, RSV, Influenza. Hoarder house Clean Outs. Serving all of Contra Costa County. We are an IICRC Certified Firm. We do it right or we won't do it at all. We are honest and do our work with integrity. Please look at our reviews on Yelp.

Damage remediation from Water, Mold, Smoke, Cigarette smell, Disinfection services for Covid, RSV, Influenza. Hoarder house Clean Outs. Serving all of Contra Costa County. We are an IICRC Certified Firm. We do it right or we won't do it at all. We are honest and do our work with integrity. Please look at our reviews on Yelp.



M D Siever General Contractor

No reviews yet

M D Siever General Contractor

No reviews yet
18 years of experience

M D Siever General Contractor holds 3 California State Licenses: B1- General Contractor, C10- Electrical Contractor, and C36- Plumbing Contractor. No "sub-contracting" is needed, giving our customers a huge savings on Contractor "mark-ups". We are a true one-call Contractor!

M D Siever General Contractor holds 3 California State Licenses: B1- General Contractor, C10- Electrical Contractor, and C36- Plumbing Contractor. No "sub-contracting" is needed, giving our customers a huge savings on Contractor "mark-ups". We are a true one-call Contractor!

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Mold Testing and Remediation questions, answered by experts

Mold in a basement is harmful as it can trigger allergy symptoms, especially for those with asthma and other breathing conditions. Symptoms of mold exposure include itching, sneezing, running nose, and congestion.

Beyond looking for visible signs of mold in a home, you can tell if your house has mold by undertaking testing. You can hire a local mold testing company to run the test for you, giving you a sure answer. Professional testing is often the best way to determine whether you have mold, as some types of mold may grow in places where you can’t easily see them, such as behind walls.

Mold thrives in high-moisture environments, whether that’s steady leaks or just high condensation. Around the house, common causes of mold include leaky pipes, a leaking roof, high humidity, poor ventilation, a damp basement, rotting food in the fridge, wet clothing and towels not hung properly for drying, a leaking foundation, and a leaky air conditioner.

And, of course, if your home suffers from flood damage, you stand the risk of developing mold in the aftermath. That’s why it’s important to act quickly at the first sign of mold.

Using bowls of water for humidity can be an effective way to increase the humidity level in a room, but it's essential to consider potential risks. Placing bowls of water near heat sources might pose a hazard as they could spill, causing damage or creating slip hazards. Moreover, stagnant water can become a breeding ground for bacteria or mold (you really want to get rid of black mold stat) if not changed regularly, potentially negatively affecting indoor air quality. Water bowls can also accidentally spill onto surfaces, causing water damage to furniture or flooring. Regular maintenance and cautious placement can mitigate these risks.

If you’ve spotted a skunk or know that one of these furry creatures sprayed one of your family members, your answer is fairly obvious. However, a skunky smell in your house that isn’t coming from these critters may be a sign of a dangerous gas leak. If you suspect this, leave your home immediately and call emergency services. It could also be a build-up of dangerous gas in your home’s septic system or plumbing. Call a professional plumber near you to make an assessment.

The Knightsen, 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.

What do you need done? We’ll find top pros.
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