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Avatar for Adam Contracting
Adam Contracting
4.83(
137
)

Angi Approved

In business since 2008

Emergency services offered

Warranties offered

"My only regret is not hiring Adam Contracting sooner. From the beginning of the project, I was updated on the schedule and cost. All of the employees were professional, and skilled, and left my house clean after each task. If I had issues or noticed something that needed to be changed the owner addressed the concern immediately. I am very happy with the finished project!"
1 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Boston Environmental & Contracting, Inc
Boston Environmental & Contracting, Inc
4.43(
7
)

Angi Approved

In business since 2006

Free estimates

Customers say: True professional

Boston Environmental & Contracting, Inc. (BE&C) is a professional environmental services and contracting firm established in 2006. Our mission is to provide excellent environmental and contracting services to meet the diverse needs of our clients that include government agencies, commercial businesses and homeowners in today’s challenging regulatory climate. We offer a wide variety of cost-effective services including environmental consultancy, abatement, remediation, demolition, renovation/remodeling and specialty contracting services to our residential, commercial and government clients throughout the Washington, DC metropolitan area. We accept all major credit cards: VISA, American Express, MasterCard and Discover DC Business License: 70104232

Recommended by85%of homeowners
Silver spring Carpet Cleaners
New to Angi

Free estimates

Emergency services offered

Warranties offered

We use top of the line products that are environmentally friendly and not only clean better than chemical cleaning, but also are safe for you, your pets, your family and your home.\nOur carpet and upholstery cleaning systems are recommended by leading manufacturers and cleaning experts.\nOur carpet cleaning company is licensed and insured and our technicians have expertise in the carpet cleaning field.

M² BUILDING AND DESIGN
New to Angi

Free estimates

Emergency services offered

Warranties offered

MASTER BUILDER, FINISH CARPENTER

Avatar for CDT Assess
CDT Assess
New to Angi

Free estimates

Emergency services offered

Environmental assessment services including:\n\nMold Assessments\nAsbestos Assessments\nLead Assessments\n\nPlease send me an email for pricing and availability. Licensed mold, lead, and asbestos inspector in both Virginia and Maryland. Please ask any questions and send a short summary of needs and issues you are having. I look forward to hearing from you!

Avatar for Labor4orce
Labor4orce
New to Angi

In business since 2014

Free estimates

Emergency services offered

Labor4orce is a woman owned, full service disaster/emergency services company located in Rockville, MD. We service the greater Washington, DC area. We are here for you 24 hours a day.

Global Plasma Solutions
5.00(
1
)

In business since 2008

Global Plasma Solutions is a manufacturing company that sells air purification systems primarily into the commercial and residential markets. Home owners can benenfit from our systems as they are easily adapted to any HVAC system. Go to www.gpshvac.com to find a certified contractor near you to have one installed within your home.

Recommended by100%of homeowners
Avatar for DUCTZ of North Alexandria/Central Fairfax
DUCTZ of North Alexandria/Central Fairfax
4.73(
41
)

In business since 2002

Free estimates

Emergency services offered

At DUCTZ of NOVA we take pride in giving you the best air duct, dryer vent and carpet cleaning services available. Cleaning your ducts and carpets in your home and/or business the right way, the first time is our top priority. At DUCTZ we make sure that you are getting the services you not only expect but you deserve. Quality customer services is only one of our many professional goals, we strictly adhere to the National Air Duct Cleaners Association Standards as well as the Environmental Protection Agency standards and EPA checklist.\n \nYour air ducts can become a major source of indoor air pollution. Every time you run your heating and cooling system, airborne contaminants build up inside the ductwork, creating a breeding ground for mold, bacteria, fungi, and other microbes. These contaminants can also significantly decrease the efficiency of your heating or cooling system.\n\nAir duct cleaning is a proactive solution to these problems. It can enhance the indoor quality of your home or business, eliminate build-up dirt and contaminants, and extend the life of your heating and cooling systems.\n \nCommercial or residential dryer vents are cleaned periodically to reduce the risk of fire. The U.S. Consumer Product Safety Commission estimates that in 1998, clothes dryers were associated with 15,600 fires, resulting in 20 deaths and 370 injuries. Fires can occur when lint builds up in the dryer or in the exhaust ductwork. Lint can block the flow of air, cause excessive heat build-up, and result in a fire in some dryers.\n \nCarpet cleaning can improve the appearance of your home and extend the life of your carpet, but perhaps the most valuable benefit from the process is improving you and your family’s health. According to the American Lung Association, if members of your household suffer from conditions that can affect their breathing, such as snoring or asthma, it’s especially crucial that you vacuum your carpets at least three times a week. Beyond vacuuming regularly, you may also benefit from having your carpets professionally cleaned at least once a year. If you’re not fully convinced of the benefits of professional carpet cleaning, consider the following top three ways the process leads to a healthier home; Carpet cleaning eliminates trapped pollutants, carpet cleaning can clear out dust mite infestations, and carpet cleaning can help prevent mold growth.\nDBA- A D S Group Inc\nAdditional phone number- 1-866-963-8289

Recommended by90%of homeowners
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FAQs for radon gas testing projects in Knoxville, MD

Radon is the second leading cause of lung cancer in the U.S. The gas seeps through cracks in foundations and collects in basements and other low areas. Once you breathe it in, radioactive particles lodge in lung tissue and do long-term damage. Because you can’t see or smell radon, the EPA recommends testing your home every two years—and after major renovations—to keep your family safe.

Yes—every home should be tested. The EPA advises doing it at least every two years and any time you remodel, buy, or sell. On average, one in 15 houses nationwide sits above the recommended limit, and the only way to know where yours stands is a formal test. The equipment simply measures gas levels and won’t change your indoor environment, so the process is completely harmless.

Certified radon professionals—often home inspectors or dedicated radon mitigation contractors—handle testing. These radon testing professionals follow EPA protocols and use calibrated instruments to check levels throughout your house. Hiring a certified radon specialist means results you can trust for real estate deals, insurance requirements, and, most importantly, your family’s health.

Inspectors specialize in measuring radon gas levels, while licensed mitigation contractors design and install the systems that remove it. If your test comes back high, your inspector can point you to a qualified mitigation pro who will size and install the right fan, piping, or other equipment to bring levels down.

No—standard home air purifiers don’t touch radon. They’re built to trap dust and pollen, not radioactive gas. If testing shows high levels, you’ll need a dedicated mitigation system that vents the gas from beneath your home to the outdoors. Relying on a room purifier alone won’t keep your indoor air safe.

Opening a few windows in your home might dilute radon for a short time, but the gas seeps back in as soon as they’re closed. For a lasting fix, you’ll need a professional mitigation system—often a sub-slab depressurization fan—that pulls radon from beneath the foundation and safely vents it outside.

The Knoxville, MD homeowners’ guide to radon gas testings

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