Residential plumbing permits in Montgomery County, MD
29 residential plumbing permits were issued in Montgomery County, MD in the 8 weeks to Oct 15, 2026. Get them weekly by ZIP from Curbside Signal.
Source: Montgomery County MD (residential). Oct 15, 2026 is the latest issue date the source has published.
Quick answer. In the 8 weeks ending Oct 15, 2026, 29 residential plumbing permits were issued in Montgomery County, MD, according to public records from Montgomery County MD (residential). The busiest ZIP codes were 20815 (4 residential permits), 20854 (4 residential permits), 20878 (3 residential permits). The median declared value was $25,000 across 29 residential permits that list one. The latest permit date published is Oct 15, 2026.
Guarantee on every package: If a month comes in under half the 8-week average permit count for your ZIPs and trades, the next month is free. If a weekly file is ever late or missing, that month is free.
Every package includes your first file within 24 hours of purchase. If we can't deliver your first file within 24 hours of purchase, we refund you in full.
What a plumbing permit means in Montgomery County
A residential plumbing permit covers water heaters, repipes, sewer laterals, gas lines and fixture work. For a plumber it marks houses whose systems are at replacement age, on streets where neighbors are likely next.
In Montgomery County, permits were issued on 21 different days in the window; the most recent were Oct 12, 2026, Oct 7, 2026, Oct 6, 2026. The busiest ZIPs were 20815 (4), 20854 (4), 20878 (3).
By residential plumbing permit count, Montgomery County ranks #52 of the 77 plumbing pages on this site and #3 of 3 in MD.
- Mail water-heater and repipe offers to the blocks with the most permits.
- Use sewer and repipe permits as an age signal for the surrounding housing stock.
- Remodel permits upstream of plumbing work show where fixture jobs are coming.
Other work on the same permits
Share of these 29 residential permits whose type or description also matches another trade. These are the follow-on and partner trades on Montgomery County jobs.
- Electrical: 12 residential permits (41%)
- Kitchen/bath remodel: 12 residential permits (41%)
- General remodel: 9 residential permits (31%)
- Painting: 6 residential permits (21%)
Weekly trend
Permits per 7-day period, ending Oct 15, 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 |
|---|---|---|
| BUILDING RESIDENTIAL PERMIT / ALTER SINGLE FAMILY DWELLING | 19 | 66% |
| BUILDING RESIDENTIAL PERMIT / ADD SINGLE FAMILY DWELLING | 3 | 10% |
| BUILDING RESIDENTIAL PERMIT / ALTER TOWNHOUSE | 2 | 7% |
| BUILDING RESIDENTIAL PERMIT / CONSTRUCT SINGLE FAMILY DWELLING | 1 | 3% |
| BUILDING RESIDENTIAL PERMIT / CONSTRUCT SHED | 1 | 3% |
Busiest ZIP codes
| ZIP | Permits | Share | 8-wk avg / week |
|---|---|---|---|
| 20815 | 4 | 14% | 0.50 |
| 20854 | 4 | 14% | 0.50 |
| 20878 | 3 | 10% | 0.38 |
| 20902 | 3 | 10% | 0.38 |
| 20901 | 2 | 7% | 0.25 |
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.
Work stated in the permit
| Work | Permits | Share |
|---|---|---|
| Fixtures | 14 | 48% |
| Sewer | 1 | 3% |
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 | Work | Declared value |
|---|---|---|---|---|---|
| 2026-10-12 | 20910 | BUILDING RESIDENTIAL PERMIT / ALTER SINGLE FAMILY DWELLING | Plumbing + electrical + addition/ADU | Fixtures | $76,000 |
| 2026-10-01 | 20815 | BUILDING RESIDENTIAL PERMIT / CONSTRUCT SINGLE FAMILY DWELLING | Roofing + plumbing + electrical + new construction | Not stated | $643,538 |
| 2026-09-29 | 20906 | BUILDING RESIDENTIAL PERMIT / ALTER SINGLE FAMILY DWELLING | Plumbing + kitchen/bath remodel + cabinets & countertops | Fixtures | $15,000 |
| 2026-09-23 | 20854 | BUILDING RESIDENTIAL PERMIT / ALTER SINGLE FAMILY DWELLING | HVAC + plumbing + electrical + kitchen/bath remodel + drywall & plaster | Not stated | $5,300 |
| 2026-09-14 | 20853 | BUILDING RESIDENTIAL PERMIT / ALTER SINGLE FAMILY DWELLING | Plumbing + electrical + remodel | Not stated | $25,000 |
| 2026-09-10 | 20814 | BUILDING RESIDENTIAL PERMIT / ALTER SINGLE FAMILY DWELLING | HVAC + plumbing + electrical + kitchen/bath remodel + painting | Not stated | $6,000 |
Source
- Montgomery County MD (residential): Permit records on data.montgomerycountymd.gov (dataset m88u-pqki), published by Montgomery County MD (residential). Source dataset. Collected window(s): Aug 21, 2026 – Oct 15, 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). Plumbing = the permit's type or work description matches the Curbside Signal plumbing 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 Washington-Arlington-Alexandria, DC-VA-MD-WV 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: Remodels drive plumbing, electrical and HVAC together, so Pro Signals customers often partner across trades on the same addresses.
Other trades in Montgomery County, MD
Residential permits in the same window, by trade.
Questions
How many residential plumbing permits were issued in Montgomery County, MD recently?
29 residential plumbing permits in the public records we pulled, the 8 weeks ending Oct 15, 2026. Source: Montgomery County MD (residential).
Which Montgomery County ZIP codes have the most plumbing permits?
20815 (4 residential permits), 20854 (4 residential permits), 20878 (3 residential permits), by residential plumbing permit count the 8 weeks ending Oct 15, 2026. 18 ZIP codes had at least one permit.
What is the median declared value of a residential plumbing permit in Montgomery County?
$25,000, across 29 residential permits that list a valuation. Declared values are what the applicant stated on the permit, not the contract price.
How do I get the Montgomery County plumbing permit list, and what does it cost?
Request a free 10-permit 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, delivered every Monday. Every package includes your first file within 24 hours of purchase. Guarantee on every package: If a month comes in under half the 8-week average permit count for your ZIPs and trades, the next month is free. If a weekly file is ever late or missing, that month is free.
Montgomery County plumbing 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.