The questions to ask a lead paint contractor in Rockville before you sign anything

Ask seven things: their MDE accreditation number, their EPA Lead Safe firm certification, whether the quote includes clearance dust testing, which treatment method they propose and why, how they will contain the dust, where the waste goes, and for the price itemized in writing. A real lead paint contractor in Rockville answers all seven on the first phone call, without checking with anyone.

The reason the list matters is that most companies advertising lead paint work in Montgomery County are painting companies with a renovation certificate. That certificate is real and it lets them repaint a pre 1978 house without spreading dust. It does not make them an abatement contractor, and if you own a rental that needs to pass a Maryland inspection, or a Twinbrook colonial where a toddler just had a high blood lead test, the difference decides whether the problem actually goes away. The questions below are how you find out which kind of company you called, in about ten minutes.

What questions should you ask a lead paint removal contractor?

These seven, in this order. Each one has an answer a qualified contractor gives instantly, so you learn as much from the hesitation as from the words.

1. What is your MDE accreditation number? Maryland regulates lead paint abatement through the Maryland Department of the Environment, not through a trade license. A firm doing abatement work here must hold MDE accreditation, and its supervisors must be individually accredited too. The answer you want is a number, given from memory or read off the certificate in the truck. The answer that ends the call is any version of "we're licensed painters, same thing." It is not the same thing.
2. Are you an EPA Lead Safe certified firm? Federal rules require this certification for any firm disturbing paint in pre 1978 housing. A painter should have it. An abatement contractor holds it on top of the MDE credential, and if your property sits across the line in DC, it is the certification that side of the work runs on.
3. Does your price include clearance dust testing? Lead jobs in Maryland end with dust wipes sent to a lab, and the passing numbers are strict: 10 micrograms of lead per square foot on floors, 100 on window sills, 400 in window troughs. A contractor who includes the test and the lab fee is promising a measured result. One who leaves it out is selling you labor and letting you find out later whether it worked.
4. Which method are you proposing, and why that one? There are four: stabilization, enclosure, encapsulation, and removal. The right choice depends on the component. Flaking trim on a covered porch takes stabilization. A friction surface like an original double hung window cannot lawfully be encapsulated, because the rubbing destroys the coating. A contractor who names the method per component is planning the job. One who says "we strip everything" is planning your invoice.
5. How will you contain the dust? The answer should sound like plastic sheeting sealed at the edges, wet methods instead of dry scraping, HEPA vacuums, and workers in protective gear. If children or a pregnant occupant live in the house, ask where the family stays during the work and listen for a real answer.
6. Where does the waste go? Lead debris gets bagged, sealed, and disposed of according to state rules, and the contractor should say so plainly. Old sashes and scrapings in an open trailer heading for a regular dumpster tell you how the inside of your house was treated too.
7. Will you itemize the quote in writing? Component by component, with testing and clearance as their own line items. Lead work priced as one round number is priced to the fear in the room.

How do you know if the price you are quoted is fair?

Compare it against published local ranges, which almost no contractor in this market will show you. We publish ours. These are the working numbers for Rockville and the rest of Montgomery County in 2026, and the pattern that should make you slow down.

The full breakdown, including what moves a job inside each range, is on our cost guide. The short version: a bid far below these ranges usually omits the testing that proves the work succeeded, and a bid far above them usually treats components that never failed.

Red flags that end the search on the spot

Some answers are disqualifying on their own. A contractor who offers to start tomorrow without testing anything first. A quote produced from the driveway. Anyone who suggests dry scraping or power sanding old paint, which turns a contained problem into dust in every room. Anyone vague about whether clearance testing happens at all. And any firm that gets defensive when you ask for certification numbers, because the legitimate ones are asked for them constantly and carry them the way an electrician carries a license.

One more that surprises people: beware the contractor who wants to do more than you asked. If your 1950s rambler has three failed window sills, the job is three window sills plus clearance, not a whole house strip. Maryland's standard is treating what failed and passing the dust test. Scope discipline is the cheapest thing to check and the most expensive thing to skip.

Verify the answers yourself in five minutes

Do not take the certification answers on trust, because you do not have to. MDE maintains its accreditation program through the Lead Poisoning Prevention Program, where you can confirm a firm's status. The EPA runs a public certified firm search covering the federal Lead Safe certification. Two lookups, five minutes, and you know more about the company than most of their customers ever learn.

This is also the fastest way to shrink your list. Search the directories for lead paint removal near Rockville and you get pages of painters. Run the names through those two lookups and the list gets short. How we handle each of these questions ourselves, from testing through clearance, is laid out step by step on how it works, and we do this work across Montgomery County every week. Ask us all seven. We like the callers who do, because they already understand what they are buying.