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Maryland · Insulator (Heat & Frost / Asbestos Worker) · 12 counties
Insulator (Heat & Frost / Asbestos Worker) prevailing wage, Montgomery County group, Maryland (12 counties)
DOL sets the same insulator rates, row for row, in 12 counties: Anne Arundel, Baltimore City, Baltimore, Calvert, Carroll, Cecil, Charles, Frederick, Howard, Montgomery, Prince George's and St. Mary's. Every figure on this page applies in each of them.
$61.19an hour, base wage + fringe benefits (our sum)
$40.77 base wage + $20.42 fringe benefits · AD
On Maryland public works in each of these 12 counties, an insulator must be paid at least $61.19 an hour: a $40.77 base wage plus $20.42 in fringe benefits. DOL prints no total, so $61.19 is our sum of the two.
Maryland informational rates as printed October 25, 2026. A determination applies to a project advertised before it expires, and mid-year changes apply only to newly issued determinations (SFP 17-209; DOL FAQ #47). Checked against labor.maryland.gov on October 25, 2026.
These are DOL's informational rates. The binding rates are in the project's wage determination, in the bid documents.
Base wage and fringe benefits: $40.77 + $20.42
The base wage is the taxable hourly wage. DOL prints the fringe benefits as one hourly figure, not itemized; it can go to health, pension, vacation and training plans, or be paid as cash where the state allows.
| Base wage (taxable) | $40.77 |
| Fringe benefits (one figure, not itemized) | $20.42 |
| Base + fringe benefits (our sum; DOL prints no total) | $61.19 |
When does this rate change?
- A determination applies to a project whose call for bids is published before it expires. Mid-year changes apply only to newly issued determinations: "Wage determinations that have already been issued will not be affected" (SFP 17-209(c)(4); DOL notice).
- DOL publishes rates on or about December 1 each year, effective for one year, and adds supplemental rates in between (DOL FAQ #11, #20). The portal prints no issue or effective date, so this page shows the date it was printed.
How the Montgomery County group compares
The main insulator rate in every county that has one, and how the pay splits here and nearby. All bars use the same scale.
Every county in Maryland
Wage and fringe benefits, nearby
- Montgomery County groupbase $40.77$61.19
- Howard Countybase $40.77$61.19
- Frederick Countybase $40.77$61.19
- Prince George's Countybase $40.77$61.19
Which county is in which insulator group
Every Maryland county with a insulator rate. Counties DOL treats alike share one page; the rest have their own.
| Counties and Baltimore City | Main classification | Base wage | Total rate |
|---|---|---|---|
| Montgomery County group, 12 localities: Anne Arundel, Baltimore, Baltimore City, Calvert, Carroll, Cecil, Charles, Frederick, Howard, Montgomery, Prince George's, St. Mary's | INSULATION WORKER | $40.77 | $61.19 |
| Caroline County group, 4 localities: Caroline, Kent, Queen Anne's, Talbot | INSULATION WORKER | $40.77 | $61.19 |
| Washington County group, 2 localities: Garrett, Washington | INSULATION WORKER | $40.77 | $61.19 |
| Allegany County | INSULATION WORKER | $40.77 | $61.19 |
| Harford County | INSULATION WORKER | $40.77 | $61.19 |
3 groups of counties with identical DOL rates, and 2 counties with rates of their own.
More from DOL on this rate
- Maryland DOL's prevailing wage portal
- These are journeyworker rates. Apprentices registered with the Maryland Apprenticeship and Training Council get the Council's percentage; helpers and trainees aren't allowed (SFP 17-205).
Every trade's rates, county by county: Anne Arundel · Baltimore City · Baltimore · Calvert · Carroll · Cecil · Charles · Frederick · Howard · Montgomery · Prince George's · St. Mary's
Are you being paid this rate?
Add your base wage to what your employer pays for bona fide benefits for you (or in cash), and compare it with the total. Certified payrolls go to the Commissioner within 14 days of each payroll, and underpayment is fined up to $250 per worker per day (SFP 17-220). Prevailing Wage Unit: 410-767-2342.
Source
Department of Labor (DOL), Maryland informational rates as printed October 25, 2026. For the row this page leads with:
- Anne Arundel: MD-INFO-2026-10-25-B-003, page 1
- Baltimore City: MD-INFO-2026-10-25-B-510, page 1
- Baltimore: MD-INFO-2026-10-25-B-005, page 1
- Calvert: MD-INFO-2026-10-25-B-009, page 1
- Carroll: MD-INFO-2026-10-25-B-013, page 1
- Cecil: MD-INFO-2026-10-25-B-015, page 1
- Charles: MD-INFO-2026-10-25-B-017, page 1
- Frederick: MD-INFO-2026-10-25-B-021, page 1
- Howard: MD-INFO-2026-10-25-B-027, page 1
- Montgomery: MD-INFO-2026-10-25-B-031, page 1
- Prince George's: MD-INFO-2026-10-25-B-033, page 1
- St. Mary's: MD-INFO-2026-10-25-B-037, page 1
We pull every locality's Building and Highway informational report from DOL's portal, read every row, and check every number with a second read and against DOL's rate workbook. DOL prints no total; ours is base plus fringe. How we check · Download every Maryland rate as CSV · Report an error