Residential insulation permits in Baltimore, MD
169 residential insulation permits issued by Baltimore City, the 8 weeks ending Oct 16, 2026. Oct 16, 2026 is the latest issue date the source has published.
Quick answer. In the 8 weeks ending Oct 16, 2026, 169 residential insulation permits were issued in Baltimore, MD, according to public records from Baltimore City. The busiest ZIP codes were 21217 (31 permits), 21216 (20 permits), 21223 (19 permits). The median declared value was $50,000 across 166 permits that list one. The latest permit date published is Oct 16, 2026.
What an insulation permit means in Baltimore
A residential insulation permit is attic, wall or weatherization work already arranged. For an insulation contractor it shows which streets are upgrading efficiency now.
In Baltimore, permits were issued on 44 different days in the window; the most recent were Oct 16, 2026, Oct 15, 2026, Oct 14, 2026. The busiest ZIPs were 21217 (31), 21216 (20), 21223 (19).
By residential insulation permit count, Baltimore ranks #2 of the 15 insulation pages on this site.
- Mail the houses around each job.
- Pitch attic work to homes with recent re-roof permits.
- Team up with HVAC contractors where heat pumps are going in.
Other work on the same permits
Share of these 169 permits whose type or description also matches another trade. These are the follow-on and partner trades on Baltimore jobs.
- windows & doors: 138 permits (82%)
- general remodel: 94 permits (56%)
- kitchen/bath remodel: 44 permits (26%)
- plumbing: 40 permits (24%)
Weekly trend
Permits per 7-day period, ending Oct 16, 2026. n/c = not collected yet (before our pipeline started pulling this source). It is not zero. Striped bars are partly collected weeks.
Top permit types
| Permit type / subtype | Permits | Share |
|---|---|---|
| Single Family Dwelling I | 37 | 22% |
| Dwelling: Rowhouse I | 16 | 9% |
| Single Family Dwelling J | 16 | 9% |
| Dwelling: Rowhouse B | 12 | 7% |
| Single Family Dwelling F | 10 | 6% |
Busiest ZIP codes
| ZIP | Permits | Share | 8-wk avg / week |
|---|---|---|---|
| 21217 | 31 | 18% | 4.12 |
| 21216 | 20 | 12% | 2.62 |
| 21223 | 19 | 11% | 2.62 |
| 21215 | 18 | 11% | 2.38 |
| 21213 | 14 | 8% | 1.75 |
8-wk avg / week is the trailing 8-week weekly average we quote in coverage checks for that ZIP and trade. It counts every source in the ZIP and includes permits with unknown use, so it can be higher than this page's residential count.
Type stated in the permit
| Type | Permits | Share |
|---|---|---|
| wall | 112 | 66% |
| attic | 82 | 49% |
Parsed from the permit's own type and work text. A permit can state more than one; many state none.
Sample rows
Anonymized: street address, permit number and any names removed. Subscribers get the full row with address, permit number and source link.
| Issued | ZIP | Permit type | Scope | Type | Declared value |
|---|---|---|---|---|---|
| 2026-10-16 | 21206 | Single Family Dwelling D | HVAC + plumbing + windows/doors + kitchen/bath remodel + insulation | attic; wall | $50,000 |
| 2026-10-08 | 21225 | Single Family Dwelling I | plumbing + electrical + remodel + insulation | attic | $5,000 |
| 2026-09-28 | 21223 | Single Family Dwelling I | plumbing + windows/doors + kitchen/bath remodel + insulation | not stated | $5,000 |
| 2026-09-17 | 21213 | Dwelling: Rowhouse J | windows/doors + remodel + insulation | wall | $60,000 |
| 2026-09-09 | 21217 | Single Family Dwelling I | windows/doors + siding + kitchen/bath remodel + fence + insulation | attic; wall | $100,000 |
| 2026-08-31 | 21223 | Single Family Dwelling G | HVAC + plumbing + windows/doors + kitchen/bath remodel + insulation | attic; wall | $50,000 |
Source
- Baltimore City: Permit records on baltegis.baltimorecity.gov, published by Baltimore City. Source dataset. Collected window(s): Aug 22, 2026 – Oct 16, 2026. Last pulled Oct 18, 2026.
Metric: Residential = the source marks the permit's use as residential (permits with commercial or unknown use are not counted). Insulation = the permit's type or work description matches the Curbside Signal insulation rules. Counts exclude void or cancelled permits. Dates are the jurisdiction's permit issue date. Records are deduplicated on source and permit number. How we count. Part of the Baltimore-Columbia-Towson, MD metro: every trade × city page there.
The honest limit. A permit usually means the job is already sold. We say that up front. The value is what happens around it:
- Neighbor marketing around active jobs: same-age houses on the same street.
- Cross-trade follow-on demand: new roof → solar, gutters, insulation; remodel → HVAC, electrical, landscaping, pool; new build → pest, security, landscaping.
- Competitor intelligence: which contractors pull permits where (where the jurisdiction publishes it), and who to recruit as subs.
- Early-stage projects for commercial trades and GC subs.
Follow-on: Re-roofs, re-sides and heat-pump installs are the main upstream signals for insulation.
Other trades in Baltimore, MD
Residential permits in the same window, by trade.
Questions
How many residential insulation permits were issued in Baltimore, MD recently?
169 residential insulation permits in the public records we pulled, the 8 weeks ending Oct 16, 2026. Source: Baltimore City.
Which Baltimore ZIP codes have the most insulation permits?
21217 (31 permits), 21216 (20 permits), 21223 (19 permits), by residential insulation permit count the 8 weeks ending Oct 16, 2026. 22 ZIP codes had at least one permit.
What is the median declared value of a residential insulation permit in Baltimore?
$50,000, across 166 permits that list a valuation. Declared values are what the applicant stated on the permit, not the contract price.
How do I get the Baltimore insulation permit list, and what does it cost?
Request a free sample for your ZIPs first. ZIP Pack is $29/mo for one trade and up to 5 ZIPs every Monday; Metro Feed is $99/mo for a whole metro and up to 3 trades, with daily alerts. Guarantee on every package: If a weekly file is late or missing, that month is free. If a month delivers under half the 8-week average permit count for your ZIPs and trade, the next month is free.
Baltimore insulation leads, every Monday
Send your trade and ZIP codes. We'll reply with a real sample from the public records we pull, or tell you plainly that we don't cover you yet.