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*The Angi rating for Lead Testing And Removal companies in Washington, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Lead Testing And Removal needs.

*The HomeAdvisor rating for Lead Testing And Removal companies in Washington, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Lead Testing And Removal needs.

Last update on June 24, 2026

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Lead Testing and Removal questions, answered by experts

Lead testing in residential properties involves collecting samples from paint, dust, soil, or plumbing and analyzing them in certified laboratories to accurately identify lead levels.

Lead toxicity comes from inhaling lead or consuming it. Before the 1980s, when the government banned lead from consumer use, it could be found in paint, plumbing, pipes, ceramics, and even gasoline. Lead paint is toxic for the same reason lead itself is toxic, which is why lead poisoning from paint presents the same as lead poisoning from water or food sources, with a slight increase in respiratory symptoms vs. digestive symptoms. Lead paint is most dangerous when it’s old and peeling, cracking, or otherwise disturbed. This increases the concentration in the air and, therefore, in breathable air. 

Several different measurements may be used to determine the amount of lead in water. The most common unit of measurement is micrograms per liter (µg/L), which is the same as parts per billion. Another measurement is milligrams per liter (mg/L), which is the same as parts per million.

You should ask a few questions to ensure that your potential lead removal professional is experienced and qualified to handle lead-paint abatement safely, legally, and properly.

  • What are your qualifications and experience removing lead-based paint?

  • Are you licensed and certified to remove lead-based paint?

  • How do you test for lead paint?

  • What methods do you use for lead-based paint abatement?

  • What do you plan to do with the hazardous material when you remove it from the home?

  • Do you do replacement and painting work or removal only?

While not all homes built before 1978 contain lead paint, enough do, so you’ll still want to test to be on the safe side. The federal government banned lead-based paint for homes in 1978, but your state may have banned lead before that time. Around 24% of homes built between 1960 and 1977 contained lead-based paint, while 87% of homes built before 1940 contained lead-based paint.

The Washington, NH homeowners’ guide to lead testing and removal services

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

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