Plumbing contractor activity in Marin County, CA

Ranked by the number of available plumbing permit records associated with each business in Marin County, CA since March 2026. This is public-record activity, not an editorial or pay-to-play ranking.

Rank	Contractor	Published record count	Record context
#1	PETER LEVI PLUMBING LLC	6 records	Published history
#2	FAST WATER HEATER COMPANY	5 records	Published history
#3	ERNEST ONGARO & SONS INC	2 records	Published history
#4	BELLOWS PLUMBING HEATING & AIR INC	2 records	Published history
#5	DIVINE ELECTRIC INC	2 records	Published history
#6	KELLY PLUMBING & HEATING INC	2 records	Published history
#7	GRAVES 6 INC	1 records	Published history
#8	J&A PLUMBING AND ROOTER SERVICE INC	1 records	Published history
#9	JAY'S PLUMBING	1 records	Published history
#10	KC HOME SERVICES	1 records	Published history
#11	MARIN H20 INC	1 records	Published history
#12	MIKE JOHN LOZANO	1 records	Published history
#13	MOORE HOME SERVICES	1 records	Published history
#14	RAPIDFLO INC	1 records	Published history
#15	ANDREW PINO'S PLUMBING	1 records	Published history
#16	WATER HEATERS ONLY INC	1 records	Published history
#17	BATHS FOR LESS LLC	1 records	Published history
#18	DEMAKAS PLUMBING & HEATING INC	1 records	Published history
#19	DENNY'S HOUSE OF PLUMBING INC	1 records	Published history
#20	GAGNE BROTHERS ENTERPRISES INC	1 records	Published history

Review the available plumbing permit records

See the newest available source date and the fields the public source publishes for Marin County, CA. A permit is evidence of project activity, not a recommendation or a promise that every record includes contact information.

Review Marin County, CA permits

How B2B teams use permit activity

Suppliers, software vendors, and market researchers can use permit activity to identify businesses associated with recent work. The source record does not measure workmanship, customer satisfaction, or contractor suitability.

Activity is source-published. A listed business is associated with available public permit records, rather than a paid placement.
Counts are scope-specific. They reflect this city's available permit inventory and the selected date window, not all of a contractor's work.
Fields vary by jurisdiction. Public sources may omit a contractor, owner, address, cost, or contact field on any given record.

Use the Marin County, CA record page to review the available records, source date, permit types, and fields for this market.

For plumbing contractors: how to land on this list

If you run a plumbing business in Marin County, CA and don't see your company name here, the available source records may not contain a matching name in this city and date window.

The source may not publish a contractor or applicant name for the relevant records.
A record may use a different business, applicant, or licensee name than the one you searched.

This list is not a statement about current operations, service availability, or contractor quality. PermitGrab lets you review source-published record context where the market provides it. Review Marin County, CA source coverage →

Frequently asked

How is this record list calculated?

We count available source-published plumbing records in Marin County, CA over the displayed date window, group them by the published business name, and sort descending. There is no editorial weighting or paid placement. It is not an exhaustive contractor directory.

Where does the permit data come from?

The linked market page identifies the publishing jurisdiction, newest displayed record date, and available fields. Source dates and field coverage vary by jurisdiction; review the Marin County, CA source details before relying on a time-sensitive workflow.

How is this different from a review directory?

This page summarizes available public-record history for a selected city and trade. Review directories summarize user experiences. Neither one establishes current availability, workmanship, or a recommendation; use the source fields and your own diligence for the decision at hand.

Why is contractor X not on this list?

The available records may not contain that exact name, the source may omit names, or a different applicant or licensee name may appear. This is not a conclusion about a business's current work. The full source-bound search interface is on the Marin County, CA record page.

I'm a plumbing contractor — how do I use this?

Review the published names, record types, dates, and available project fields in your service area. Confirm the source date and field coverage on the market page before acting; current plan terms are shown during signup.