City comparison
Attic Insulation cost: Baltimore vs Gaithersburg (2026)
Attic insulation costs about the same in Baltimore and Gaithersburg in 2026 — roughly $3,950 in each.
Baltimore MD
$1,550 – $6,300
Typically around $3,950
Gaithersburg MD
$1,550 – $6,300
Typically around $3,950
Side by side
Baltimore vs Gaithersburg: full breakdown
| Factor | Baltimore | Gaithersburg |
|---|---|---|
| Typical 2026 cost | $3,950 | $3,950 |
| Estimated range | $1,550–$6,300 | $1,550–$6,300 |
| Labor index (vs US) | ×1.05 | ×1.05 |
| Climate zone | Mixed | Mixed |
| Climate factor | ×1 | ×1 |
| Local permit | None | None |
| Labor share | $2,150 | $2,150 |
| Materials/equipment | $1,800 | $1,800 |
Localized 2026 planning estimates — not quotes. Each city adjusts the national attic insulation range for local labor, climate and permits.
FAQ
Baltimore vs Gaithersburg
Is attic insulation cheaper in Baltimore or Gaithersburg?
In 2026, attic insulation costs about the same in both — roughly $3,950 in each city.
Why does attic insulation cost more in Gaithersburg than Baltimore?
The main driver is local labor rates: Gaithersburg's labor index is 1.05 versus 1.05 in Baltimore. Climate zone (mixed vs mixed) also shift the total.
How much is attic insulation in Baltimore, MD?
In Baltimore, attic insulation typically runs $1,550–$6,300 in 2026, with most homeowners paying around $3,950.
Updated June 2026 · By Costadia Editorial