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Find Mold testing and remediation specialists in King Of Prussia

Avatar for Oak Leaf Environmental

Oak Leaf Environmental

New on AngiNew on Angi
Approved Pro

Oak Leaf Environmental

New on AngiNew on Angi
Approved Pro

If you're a property owner seeking peace of mind regarding mold, asbestos, lead, radon, or air quality issues, the skilled environmental team at Oak Leaf Environmental is here to assist you. We offer a comprehensive range of services designed to keep your home or business environment healthy, allowing you to focus on the well-being of everyone inside.

If you're a property owner seeking peace of mind regarding mold, asbestos, lead, radon, or air quality issues, the skilled environmental team at Oak Leaf Environmental is here to assist you. We offer a comprehensive range of services designed to keep your home or business environment healthy, allowing you to focus on the well-being of everyone inside.


Avatar for Radon-Rid LLC

Radon-Rid LLC

4.96(
212
)

Radon-Rid LLC

4.96(
212
)
Customers say: True professional
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers

With over 220 outstanding reviews, Radon Rid, LLC is a fully insured, licensed, and certified radon testing and radon remediation company. From me to my whole team, our focus is on providing quality, first, last, and always through education, workmanship, and environmental stewardship. We believe our goals are best attained through consideration of not only our customers, but our employees, suppliers, referring agents, and regulatory agencies.

"Very well. All were professional and friendly. Installation was clean. Test result prior to active mitigation was 38.4 and post active mitigation <.03 which is fantastic. Would highly recommend Radon-Rid."

Kathy A on April 2020

With over 220 outstanding reviews, Radon Rid, LLC is a fully insured, licensed, and certified radon testing and radon remediation company. From me to my whole team, our focus is on providing quality, first, last, and always through education, workmanship, and environmental stewardship. We believe our goals are best attained through consideration of not only our customers, but our employees, suppliers, referring agents, and regulatory agencies.

"Very well. All were professional and friendly. Installation was clean. Test result prior to active mitigation was 38.4 and post active mitigation <.03 which is fantastic. Would highly recommend Radon-Rid."

Kathy A on April 2020


Avatar for Artistic Masonry Co

Artistic Masonry Co

4.99(
244
)

Artistic Masonry Co

4.99(
244
)
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

Trust your next masonry project to the professionals. Not only do we offer you an insured and licensed specialist to lay out your project, we also provide you with exclusive warranties on our products and services. Ask your masonry expert during your estimate about what warranties we can offer you. With over 24 years of experience in masonry, Artistic Masonry Company is the premiere authority on all stone and brickwork in Philadelphia and the surrounding areas. No travel charges. No service fees. Award winning. Additional DBA - Artistic Masonry Company.

"Perfectly. Carl met with me for a challenging problem/project I had previously hired (years ago) another contractor to solve/install. It involved installing a natural stone “stairway,“ with landings, on two small hills. The previous contractor did not succeed. Carl assessed and knew instantly what needed to be done, gave me a reasonable price, communicated effectively, always showed up on time with his crew and, at the risk of sounding hyperbolic, did a perfect job. Every member of his crew was customer and project focused. I already plan to welcome them back for another project elsewhere on my property."

Dean M on March 2022

Trust your next masonry project to the professionals. Not only do we offer you an insured and licensed specialist to lay out your project, we also provide you with exclusive warranties on our products and services. Ask your masonry expert during your estimate about what warranties we can offer you. With over 24 years of experience in masonry, Artistic Masonry Company is the premiere authority on all stone and brickwork in Philadelphia and the surrounding areas. No travel charges. No service fees. Award winning. Additional DBA - Artistic Masonry Company.

"Perfectly. Carl met with me for a challenging problem/project I had previously hired (years ago) another contractor to solve/install. It involved installing a natural stone “stairway,“ with landings, on two small hills. The previous contractor did not succeed. Carl assessed and knew instantly what needed to be done, gave me a reasonable price, communicated effectively, always showed up on time with his crew and, at the risk of sounding hyperbolic, did a perfect job. Every member of his crew was customer and project focused. I already plan to welcome them back for another project elsewhere on my property."

Dean M on March 2022


Avatar for ComfortSpec

ComfortSpec

4.88(
311
)

ComfortSpec

4.88(
311
)
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

Home Inspection company serving Monroe, Pike, Northampton, Lacawanna Counties and the Lehigh Valley. Located in Brodheadsville PA. All inspections include a 100 Day Warranty, 200% Money Back Guarantee, Total Home Support and Our Buyers Protection Plan

"Answered my call right away, without the need to leave a message. Inspection scheduled the next morning. The inspector, Bryan was professional, knowledgeable, and was patient with all my questions. Great experience."

Bethzaida H on May 2025

Home Inspection company serving Monroe, Pike, Northampton, Lacawanna Counties and the Lehigh Valley. Located in Brodheadsville PA. All inspections include a 100 Day Warranty, 200% Money Back Guarantee, Total Home Support and Our Buyers Protection Plan

"Answered my call right away, without the need to leave a message. Inspection scheduled the next morning. The inspector, Bryan was professional, knowledgeable, and was patient with all my questions. Great experience."

Bethzaida H on May 2025


Avatar for Royal Water Damage Restoration

Royal Water Damage Restoration

4.97(
104
)

Royal Water Damage Restoration

4.97(
104
)
Customers say: Super punctual
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers

For over 20 years, Royal Water Damage Restoration, Inc. has been providing professional and reliable water damage remediation, water removal, smoke, fire, flood cleanup, storm damage, asbestos testing and removal, wet basement drying, and mold services to our clients. We understand the urgency of emergency situations and as such, we are available 24 hours a day, 7 days a week, 365 days a year to attend to your needs. Our staff is highly trained and experienced, and we pride ourselves on always providing you with professional and thorough service. When you contact us, you will always speak with a live person who will dispatch our local, certified, and dedicated technicians to your location anywhere in the Philadelphia, Montgomery, Bucks, Delaware and Chester County areas. We are committed to providing rapid response and ensuring that the job is done right the first time.

"This was my first experience with this company and they exceeded expectations. The remediation was performed in a conpetent manner they alleviated the problem with the water damage and mole."

Rev. Dr. Robert C on September 2025

For over 20 years, Royal Water Damage Restoration, Inc. has been providing professional and reliable water damage remediation, water removal, smoke, fire, flood cleanup, storm damage, asbestos testing and removal, wet basement drying, and mold services to our clients. We understand the urgency of emergency situations and as such, we are available 24 hours a day, 7 days a week, 365 days a year to attend to your needs. Our staff is highly trained and experienced, and we pride ourselves on always providing you with professional and thorough service. When you contact us, you will always speak with a live person who will dispatch our local, certified, and dedicated technicians to your location anywhere in the Philadelphia, Montgomery, Bucks, Delaware and Chester County areas. We are committed to providing rapid response and ensuring that the job is done right the first time.

"This was my first experience with this company and they exceeded expectations. The remediation was performed in a conpetent manner they alleviated the problem with the water damage and mole."

Rev. Dr. Robert C on September 2025


Avatar for Hometown Building Solutions Inc

Hometown Building Solutions Inc

5.00(
73
)

Hometown Building Solutions Inc

5.00(
73
)
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Hometown Building Solutions, Inc. is a family owned and operated business that serves Philadelphia and the surrounding counties. We have been providing asbestos removal, lead encapsulation and mold remediation for over thirty years and hold the following licenses: PA home improvement contractor, asbestos removal (Philadelphia and PA) and lead. Hometown is often referenced as the standard in industry training courses. Hometown is familiar with jobs as large as local universities/schools, healthcare manufacturers, utility companies and as small as row home basement. No job too big or too small. A polite and courteous team will show up at your door to do the work.

"Mike came out and explained everything thoroughly for me which was great. They came in less than a week later and it only took the day to get everything done plus a day or 2 of the air circulation. They were easy to contact and very professional. Hometown was about $400 less than a different company that gave me an estimate."

Siena C on November 2018

Hometown Building Solutions, Inc. is a family owned and operated business that serves Philadelphia and the surrounding counties. We have been providing asbestos removal, lead encapsulation and mold remediation for over thirty years and hold the following licenses: PA home improvement contractor, asbestos removal (Philadelphia and PA) and lead. Hometown is often referenced as the standard in industry training courses. Hometown is familiar with jobs as large as local universities/schools, healthcare manufacturers, utility companies and as small as row home basement. No job too big or too small. A polite and courteous team will show up at your door to do the work.

"Mike came out and explained everything thoroughly for me which was great. They came in less than a week later and it only took the day to get everything done plus a day or 2 of the air circulation. They were easy to contact and very professional. Hometown was about $400 less than a different company that gave me an estimate."

Siena C on November 2018


Avatar for South Jersey Waterproofing & Structural Repair LLC

South Jersey Waterproofing & Structural Repair LLC

4.98(
99
)

South Jersey Waterproofing & Structural Repair LLC

4.98(
99
)
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

The ORIGINAL South Jersey Waterproofing! 10% Off any job for Angies List members! For over 60 years, we have been returning homes to a healthy home all over NJ, PA, and DE. Family Owned and operated. FREE estimates, no salesman and no subcontractor. Don’t let other companies with similar names confuse you Contact us to evaluate your home to solve any water related issues, foundation failures, mold contamination, masonry and historical restorations. We can then provide a FREE estimate to correct those issues! Deal directly with the 4th Generation owner.

"Great guys, great outcome,"

Sharon B on September 2020

The ORIGINAL South Jersey Waterproofing! 10% Off any job for Angies List members! For over 60 years, we have been returning homes to a healthy home all over NJ, PA, and DE. Family Owned and operated. FREE estimates, no salesman and no subcontractor. Don’t let other companies with similar names confuse you Contact us to evaluate your home to solve any water related issues, foundation failures, mold contamination, masonry and historical restorations. We can then provide a FREE estimate to correct those issues! Deal directly with the 4th Generation owner.

"Great guys, great outcome,"

Sharon B on September 2020


Avatar for atticrawl

atticrawl

4.92(
167
)

atticrawl

4.92(
167
)
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

Atticrawl is a family owned business that has been in business for 10 years . We believe in serving our customers according to their needs. We specialize in attic and crawl space cleaning, rodent proofing, and insulating. All of our technicians and crew members are professionally trained/ or certified. We take pride in what we do, and we are committed to delivering outstanding customer service.

"Basit came to our home and explained the process in detail. His team was at our home within the hour. They taped everything well to avoid dust and contamination. They bagged and removed all the old insulation, sanitize the attic, and rodent proof the home from outside and inside. They were very professional & easy to work with."

Mehul P on August 2023

Atticrawl is a family owned business that has been in business for 10 years . We believe in serving our customers according to their needs. We specialize in attic and crawl space cleaning, rodent proofing, and insulating. All of our technicians and crew members are professionally trained/ or certified. We take pride in what we do, and we are committed to delivering outstanding customer service.

"Basit came to our home and explained the process in detail. His team was at our home within the hour. They taped everything well to avoid dust and contamination. They bagged and removed all the old insulation, sanitize the attic, and rodent proof the home from outside and inside. They were very professional & easy to work with."

Mehul P on August 2023


Avatar for Keystone Inspection Service

Keystone Inspection Service

4.93(
58
)

Keystone Inspection Service

4.93(
58
)
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

KEYSTONE INSPECTION SERVICE has been in the Pennsylvania building / home inspection business since 1988 and has performed over 80,000 building / home inspections for more than 50,000 clients in Pennsylvania. We are a full time, full service building / home inspection company committed to providing our clients with an honest, objective evaluation of the condition of the home and its major systems. KEYSTONE INSPECTION SERVICE is a multi-inspector firm. Our building / home inspectors bring to the organization a variety of experience and specializations including engineering, construction, and environmental, thereby enabling us to provide you with the "right" inspector for your building / home inspection. KEYSTONE INSPECTION SERVICE knows and understands the time constraints sometimes imposed in a real estate transaction, and will make every effort to meet your deadline. We will not promise you delivery of a service we cannot provide. KEYSTONE INSPECTION SERVICE highly recommends that you attend the building / home inspection and, in order to accommodate your schedule, we inspect 7 days a week. We will provide you with a computer generated report - complete with color photos and inspection highlights - posted for you on an exclusive secure website the next business day. In addition, our inspectors are available to answer your questions long after the day of the building / home inspection. If you buy the house, this service continues for as long as you live in the house.

"Gene (our inspector) was very knowledgable, friendly, and professional. High attention to detail and kept us up to date throughout the inspection. Report very thorough and included helpful photographs. Highly recommend."

Michael M on September 2020

KEYSTONE INSPECTION SERVICE has been in the Pennsylvania building / home inspection business since 1988 and has performed over 80,000 building / home inspections for more than 50,000 clients in Pennsylvania. We are a full time, full service building / home inspection company committed to providing our clients with an honest, objective evaluation of the condition of the home and its major systems. KEYSTONE INSPECTION SERVICE is a multi-inspector firm. Our building / home inspectors bring to the organization a variety of experience and specializations including engineering, construction, and environmental, thereby enabling us to provide you with the "right" inspector for your building / home inspection. KEYSTONE INSPECTION SERVICE knows and understands the time constraints sometimes imposed in a real estate transaction, and will make every effort to meet your deadline. We will not promise you delivery of a service we cannot provide. KEYSTONE INSPECTION SERVICE highly recommends that you attend the building / home inspection and, in order to accommodate your schedule, we inspect 7 days a week. We will provide you with a computer generated report - complete with color photos and inspection highlights - posted for you on an exclusive secure website the next business day. In addition, our inspectors are available to answer your questions long after the day of the building / home inspection. If you buy the house, this service continues for as long as you live in the house.

"Gene (our inspector) was very knowledgable, friendly, and professional. High attention to detail and kept us up to date throughout the inspection. Report very thorough and included helpful photographs. Highly recommend."

Michael M on September 2020


Avatar for Service Team of Professionals Eastern PA

Service Team of Professionals Eastern PA

4.95(
76
)

Service Team of Professionals Eastern PA

4.95(
76
)
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

Restoration.........Done Right the First Time!! Service Team of Professionals Eastern PA, provides quality residential and commercial property damage restoration services. Services include mold remediation, water damage mitigation/drying, smoke, fire, wind and vandalism damage. S.T.O.P offers 24-hour emergency response with full service disaster cleaning and repair. Our trained team of professionals have over 15 years’ experience and masters of the trade who will work closely with you and your insurance company to help you recover from the unexpected. We utilize the most effective equipment and methods to prevent further damage and restore your premises to near pre-loss condition. Call on S.T.O.P for your water, mold, smoke, fire, wind, vandalism and other damage repair services. To schedule a free initial consultation or estimate please contact us toll free at (267) 433-5500.

"I contacted them to a dug up the floor and a separate plumber will be hired to replace a leaking pipe and and Service Team Professionals would have to put the floor back. I have submitted all the documents from the insurance company, that has all my contact information, and after they've reviewed the documents they called and said that they couldn't do the job because, they would not make a profit out of the project and they don't do the work despite me having the extra money for the project. After speaking with Christina, the receptionist, Phil whom I believe is the owner of the company got on the phone and stated that do I expect him to do **** work for free, and so I hanged up, and he called right back cursing and so I hanged up on him again, then he called the 3rd, afraid that he would curse me again, so I never answered the phone anymore."

Doreen B on September 2020

Restoration.........Done Right the First Time!! Service Team of Professionals Eastern PA, provides quality residential and commercial property damage restoration services. Services include mold remediation, water damage mitigation/drying, smoke, fire, wind and vandalism damage. S.T.O.P offers 24-hour emergency response with full service disaster cleaning and repair. Our trained team of professionals have over 15 years’ experience and masters of the trade who will work closely with you and your insurance company to help you recover from the unexpected. We utilize the most effective equipment and methods to prevent further damage and restore your premises to near pre-loss condition. Call on S.T.O.P for your water, mold, smoke, fire, wind, vandalism and other damage repair services. To schedule a free initial consultation or estimate please contact us toll free at (267) 433-5500.

"I contacted them to a dug up the floor and a separate plumber will be hired to replace a leaking pipe and and Service Team Professionals would have to put the floor back. I have submitted all the documents from the insurance company, that has all my contact information, and after they've reviewed the documents they called and said that they couldn't do the job because, they would not make a profit out of the project and they don't do the work despite me having the extra money for the project. After speaking with Christina, the receptionist, Phil whom I believe is the owner of the company got on the phone and stated that do I expect him to do **** work for free, and so I hanged up, and he called right back cursing and so I hanged up on him again, then he called the 3rd, afraid that he would curse me again, so I never answered the phone anymore."

Doreen B on September 2020

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Mold Testing and Remediation questions, answered by experts

Yes, if installed correctly. Moisture barrier padding blocks dampness from reaching the padding core and subfloor, where mold loves to grow, especially in humid environments like basements. However, poor installation with gaps or loose seams can do the exact opposite, trapping moisture and creating mold problems. So, make sure to do your installation carefully or hire a professional.

Yes. Black stains are more than an eyesore. Some black stains can pose health concerns, especially for those with asthma, allergies, or other respiratory conditions. Some stains can also damage the brick’s structural integrity, harming the mortar and resulting in more expensive repairs.

Water damage always poses the risk of mold, but if you act quickly enough (within the first 24 hours), you may be able to avoid mold growth resulting from water damage. Clean up the water quickly and thoroughly dry the area. If the issue is more extensive or you didn’t act quickly enough, it’s always safer to assume mold has grown and hire a mold inspector to examine the area.

The purpose of crawl space encapsulation is to prevent mold and moisture from entering your space. If your vapor barrier is properly installed and intact, it will dramatically reduce the chance that your crawl space develops mold. That said, moisture can condense in the area. If you notice excess humidity, you may need to install a dehumidifier to stave off mold and mildew growth.

Checking for mold yourself is crucial, as catching mold in the early stages is ideal. Mold can appear green, brown, black, blue, or yellow. It can smell musty and can feel like velvet, leather, or cotton. 

Most often, mold grows near water damage. It’s best to inspect these places for signs of mold growth:

  • Basement: Look in corners, windows, carpet, closets, and around appliances. 

  • Bathrooms: Check around sinks, ceilings, and around toilets. 

  • Kitchen: Inspect around the sink, behind the refrigerator, and behind trash can.

  • Attic: Look near the insulation and near intake and exhaust vents.

The King Of Prussia, PA homeowners’ guide to mold testing and remediation services

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