Plumbing and gas?Plumbing and gas permits, water heaters and repipes. Counts come from records published by permit offices. A market matches the permit's published text, so one permit can belong to more than one market.

-12% 5,571 permits in Jul 2026 to Sep 2026, against 6,313 in the three months before.

A faint bar is a month the window or today cuts short. 10,429 of these permits are still open.

1,827 firms are named on 8,743 of the 22,610 permits; the five busiest hold 13% of those. 82 permits are owner-built and name no firm.

Spellings of one name are counted together. A name is whatever the permit office recorded as contractor or applicant business. The value is the sum printed on the permits that name the firm, not what the firm was paid: some offices print a whole project's value on every permit pulled for it, so a subcontractor can carry the full value of the building it worked on.

16,482 of 22,610 permits carry a location. Each circle is a square about a kilometre across, sized by how many permits fall in it; no single site is drawn.

118 screenings in the window match this market; the newest are listed. A screening is filed before the permit, often before a builder is chosen, and most are followed by a permit on the same site.

How many of the matched permits publish each thing a figure on this page needs.

89 of 5659 sizes are footprints read from dimensions written in the work description (40x60), not a published floor area.

1398 pre-application screenings in the window are counted apart: a screening and the permit that follows it are one project.

40252 filings in the window are records or zoning requests, not construction, and are left out of every share.

A market is matched by keywords in the text the permit office published, not by a reviewer reading each permit.

Each source is a feed its permit office publishes on purpose. A row here holds no owner, street address or parcel.