InterlockDeviceNearMeEstimate my cost
Queenstown, MD

Queenstown, MD ignition interlock: 1 certified installer

1 in town, 20 more within reach of Queenstown

Verified · next review

1 certified center in Queenstown, run by 1 provider. Addresses below — call ahead, most centers fit devices by appointment.

Centers here
1
Providers
1
Monthly · national guide
$70
filed with Maryland
Where to go

Certified installation centers in Queenstown

Sorted by how far they are from the center of Queenstown. Where two providers work out of the same garage, we list the garage once with both names, and we include nearby towns when their center is closer than one of your own.

1
RoadGuard Interlock- Ignition Interlock LLC outside Queenstown
4311 Main Street, Grasonville, MD 21638 · 3 miles from the center of Queenstown
Guardian InterlockLifeSaferRoadGuard Interlock
2
Parks Tire and Auto Service Inc
308 Centreville Rd, Queenstown, MD 21658 · 5 miles from the center of Queenstown
Intoxalock
3
59 Tags and Title Agency - Centreville outside Queenstown
2478 Centreville Rd, Centreville, MD 21617 · 6 miles from the center of Queenstown
Guardian InterlockIntoxalockLifeSafer
4
Ignition Interlock – Centreville outside Queenstown
2478 Centreville Road Unit J, Centerville, MD 21617 · 6 miles from the center of Queenstown
Guardian InterlockIntoxalockLifeSafer
5
Ignition Interlock outside Queenstown
130 Comet Dr, Centreville, MD 21617 · 6 miles from the center of Queenstown
RoadGuard Interlock
6
Ignition Interlock – Stevensville outside Queenstown
1100 Butterworth Court, Stevensville, MD 21666 · 8 miles from the center of Queenstown
Guardian InterlockLifeSafer
7
Just Right Automotive outside Queenstown
8949 Mistletoe Drive, Easton, MD 21601 · 14 miles from the center of Queenstown
IntoxalockLow Cost InterlockRoadGuard InterlockSmart Start
8
Ignition Interlock – Easton outside Queenstown
8133 Elliott Road Unit 205, Easton, MD 21601 · 16 miles from the center of Queenstown
Guardian InterlockLifeSafer
9
Caldwell Tire & Auto Service Tire Pros outside Queenstown
6323 Church Hill RD, Chestertown, MD 21620 · 16 miles from the center of Queenstown
Low Cost InterlockRoadGuard InterlockSmart Start
10
Ignition Interlock – Chestertown outside Queenstown
6407 Church Hill Road, Chestertown, MD 21620 · 16 miles from the center of Queenstown
LifeSaferRoadGuard Interlock
11
Ignition Interlock outside Queenstown
8105 Teal Dr, Easton, MD 21601 · 16 miles from the center of Queenstown
RoadGuard Interlock
12
Ignition Interlock – Annapolis outside Queenstown
1125 B West Street, Suite 237, Annapolis, MD 21401 · 19 miles from the center of Queenstown
Guardian InterlockLifeSafer
13
Precision Window Tint & Wraps outside Queenstown
1920 West St, Annapolis, MD 21401 · 19 miles from the center of Queenstown
Low Cost Interlock
14
59 Tags and Title Agency - Denton outside Queenstown
4 Denton Plz, Denton, MD 21629 · 20 miles from the center of Queenstown
Intoxalock
15
Ignition Interlock – Denton outside Queenstown
4 Denton Plaza, Denton, MD 21629 · 20 miles from the center of Queenstown
Guardian InterlockLifeSaferRoadGuard Interlock
16
Admiral Tire of Denton outside Queenstown
1115 Industrial Park Way, Denton, MD 21629 · 20 miles from the center of Queenstown
Intoxalock
17
Rells Auto Repair outside Queenstown
10829 Worton Rd, Worton, MD 21678 · 20 miles from the center of Queenstown
Intoxalock
18
Interlock Installer 11 outside Queenstown
8845 Fort Smallwood Rd, Pasadena, MD 21122 · 22 miles from the center of Queenstown
Intoxalock
19
Edgewater Tire & Auto Center outside Queenstown
3420 Pike Ridge Rd, Edgewater, MD 21037 · 22 miles from the center of Queenstown
Intoxalock
20
RoadGuard Interlock- Ignition Interlock LLC outside Queenstown
3427 Pike Ridge Rd, Edgewater, MD 21037 · 22 miles from the center of Queenstown
Guardian InterlockLifeSaferRoadGuard Interlock
21
Car Worx - Pasadena outside Queenstown
8009 Jumpers Hole Rd, Pasadena, MD 21122 · 25 miles from the center of Queenstown
ADS InterlockIntoxalockLow Cost InterlockRoadGuard Interlock

Compiled from providers’ own public location directories and deduplicated to unique physical places (how we build this index). Listing is not an endorsement, and no center pays to appear.

Or let them come to you

Not sure which center to call?

Send your details once and certified installers covering Queenstown will get in touch with availability and a price for your term. It costs nothing, and you are not committing to anything by asking.

We pass your details only to providers that are certified in Maryland. We never sell your information on, and you can tell them to stop at any time.

Get quotes from centers in Queenstown

Tell us where you are and we will pass your details to certified installers near you. No account, no obligation.

Cost

What it costs in Queenstown

Interlock pricing is set at state level, so what applies in Queenstown applies across Maryland. These figures come from the price schedule filed with the state.

ChargeAmountWhat it covers
Installation$70–$150range across approved providers; many discount the initial install and account set-up
Monthly$70–$100monitoring, with calibration every 30 days
RemovalNot publishednot published separately by the MVA

State guidance figure · Ignition Interlock Program Report — Maryland MVA · checked 2026-08-23

The fees nobody quotes you over the phone

These are charged on top of the three above, and they are where a cheap-looking Maryland quote turns expensive.

FeeAmount
Program enrollment fee$47 (waivable on medical or food assistance)
  • Providers must fit a device within 10 days of a request and run a 24-hour emergency line.
  • Providers must offer 50% off rental rates to drivers on assistance.

What Maryland requires

Maryland runs one of the oldest interlock programs in the country, and it is built as an alternative to losing your license rather than an addition to it. You get a "J" restriction and report to your provider every 30 days; they send the MVA a report covering high readings, missed or failed retests, tampering and how often the car was used.

  • First offense: Set on referral by the MVA, a court or an administrative law judge; a repeat offender within five years faces a year of suspension or a year in the program, then a further restricted year
  • Lockout threshold: 0.025% — the MVA states the car will not start above that reading; missed service visits, tampering and bypass attempts also count as violations
  • Program run by: Maryland Motor Vehicle Administration

Full Maryland rules, providers and all 129 cities →

Queen Anne's County · 2020–2022

Why Maryland orders these devices

An interlock order is not a judgment about you personally — it is what the state does with every case of this kind, and the reason sits in the crash record.

Fatal crashes involving a drinking driver
5
of 13 fatal crashes in Queen Anne's County
Share of fatal crashes
39%
Maryland overall: 30%
People killed in those crashes
5
Queen Anne's County, 2020–2022

Source: NHTSA Fatality Analysis Reporting System, 2020–2022. The count covers fatal crashes where police recorded that a driver had been drinking, which is narrower than the federal 0.08 BAC measure and therefore understates the real figure. Queen Anne's County runs above the Maryland average, which is part of why the interlock requirement here is enforced the way it is. What the device changes is measurable too: a car fitted with one cannot be started over the limit, which is why the order attaches to driving privileges rather than to the sentence.

Nearby

Other cities in Maryland

If nothing in Queenstown works for you, a center one town over often has an earlier appointment — the price does not change.

Questions

Interlock questions in Queenstown

Where can I get an ignition interlock device installed in Queenstown, MD?

We index 1 certified installation point in Queenstown, run by Intoxalock. Addresses are listed above. Book with the provider your paperwork names, not the nearest one — a device approved in one state is not automatically approved in the next, and switching brands mid-term means a second installation fee.

How much does it cost to have an ignition interlock device installed in Maryland?

Maryland publishes its own figures rather than leaving it all to vendors: $70 to $150 to fit the device and $70 to $100 a month while it stays on the car. Removal is billed by the provider at the end of the term.

Can I drink one beer and still start the car in Maryland?

Almost certainly not. 0.025% — the MVA states the car will not start above that reading; missed service visits, tampering and bypass attempts also count as violations That is far below any drunk driving limit, which is the point: the device is not testing whether you are impaired, it is testing whether you drank. One drink shortly before a test is enough on most programs, and the fail is recorded whether or not you try again.

What does an ignition interlock device do?

An ignition interlock is a breath-alcohol tester wired into your car ignition. You blow into it before starting the engine; if your breath alcohol is above the state threshold, the engine will not start.

While you are driving, the device asks for rolling retests at random intervals. Every sample, skipped test, and lockout is recorded and sent to the agency monitoring your case.

All Maryland cities →Why Maryland requires it →What it costs in MarylandDUI lawyers in MarylandIf the device recorded a violation →