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Plumbing permits in Nashua, NH

Data through September 2026 · updated 20 Oct 2026

1,295 plumbing permits were issued in Nashua, October 2024 through September 2026: about 648 a year and 12% of all permits. 623 plumbing permits in the last 12 months (Oct 2025–Sep 2026), 7% fewer than the 672 in the 12 months before. The busiest month is April.

1,295permits issued
623last 12 months
Aprbusiest month
Sep 2026records through

Plumbing permits by month

Permits issued each month, October 2024 through September 2026.

Oct 2024: 53Oct2024Nov 2024: 42Dec 2024: 58Jan 2025: 63Jan2025Feb 2025: 44Mar 2025: 69Apr 2025: 71May 2025: 59Jun 2025: 57Jul 2025: 39JulAug 2025: 66Sep 2025: 51Oct 2025: 57Nov 2025: 29Dec 2025: 61Jan 2026: 40Jan2026Feb 2026: 51Mar 2026: 48Apr 2026: 61May 2026: 49Jun 2026: 50Jul 2026: 54JulAug 2026: 53Sep 2026: 70
The same numbers as a table
MonthPermits
Oct 202453
Nov 202442
Dec 202458
Jan 202563
Feb 202544
Mar 202569
Apr 202571
May 202559
Jun 202557
Jul 202539
Aug 202566
Sep 202551
Oct 202557
Nov 202529
Dec 202561
Jan 202640
Feb 202651
Mar 202648
Apr 202661
May 202649
Jun 202650
Jul 202654
Aug 202653
Sep 202670

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When plumbing permits are filed

By calendar month, 100 = an average month (the thin line). April is the busiest (122), November the quietest (66). A busy month at the permit counter usually means a longer wait for a contractor.

January: 95 (100 = an average month)February: 88 (100 = an average month)March: 108 (100 = an average month)April: 122 (100 = an average month)122May: 100 (100 = an average month)June: 99 (100 = an average month)July: 86 (100 = an average month)August: 110 (100 = an average month)September: 112 (100 = an average month)October: 102 (100 = an average month)November: 66 (100 = an average month)December: 110 (100 = an average month)JFMAMJJASOND
The same numbers as a table
MonthIndex
January95
February88
March108
April122
May100
June99
July86
August110
September112
October102
November66
December110

Download this table (CSV)

The city's own permit types

How the city filed these permits. We group its types into kinds of work; this is the split.

Permit typePermitsShare
Residential Plumbing Only97775%
Commercial Plumbing Only31825%

Download this table (CSV)

How these numbers are made

Source: City of Nashua GIS, Building_Permits_for_AGOL map service (NashIMS building permits, last three years) and the Building_Permits_June_2025 snapshot layer, read 20 Oct 2026. We count permits issued October 2024 through September 2026; denied and withdrawn permits are left out. The file carries no usable permit status, so it can't say which permits were finished, so no finished share is shown.

Building, electrical, plumbing and mechanical permits the City of Nashua Building Safety Department issues inside the city. The city publishes only the last three years of permits as map layers; older permits are not public in bulk.

  • The city's permit layers name no contractor, so there are no contractor lists, rankings or firm pages for Nashua.
  • The layers have no job value, no final inspection date, no status beyond issued and no ZIP code, so we show no costs, no time to final, no finished share and no ZIP pages.
  • The city's type of work is cut to 30 characters in the file; trade permits (mechanical, electrical, plumbing only) are counted for homes and businesses alike.

Counts are permits, not jobs: one job can need several permits. Nobody paid to be on this page and nobody can. Sources and definitions →

Cite this page

Free to reuse with attribution (CC BY 4.0). Please credit Contractor Records and link to this page. Suggested citation:

Contractor Records, "Plumbing permits in Nashua, NH", https://contractorrecords.com/nashua/plumbing-permits, data through September 2026, from City of Nashua Building Safety Department building-permit records.

Link to a table: By month · Season · Permit types.

Download the tables (CSV): Plumbing permits by month · Plumbing permits by calendar month (index) · Plumbing permits by permit type.

Common questions

  • How many plumbing permits does Nashua issue a year?About 648 a year in Nashua: 1,295 permits issued October 2024 through September 2026, 623 of them in the last 12 months.
  • When do people in Nashua file the most plumbing permits?April (122 against an average month of 100); November is the quietest (66). If you can choose, a quiet month at the permit counter can mean contractors have more room in their schedules.