Plumbing contractors leads in Napa city, CA — 23 scored businesses
Napa city has 23 active plumbing contractors profiled on LocalVein, with a median vulnerability score of 9 out of 100. About 22% operate without a website — the single strongest signal that a local service business is open to hiring a marketing agency.
The plumbing contractor market in Napa city
Most homes in Napa city came up in the 1975 era — the 30-to-50-year window where original spec components reach the end of their service life one system at a time. For plumbing contractors, that timing pattern is predictable enough to build a marketing calendar around: quarterly nurture flows beat emergency-only creative because the buyer is already running a mental tab of deferred work across plumbing, roof, electrical, HVAC. Agencies who win in this housing bracket treat each prospect as a long-cycle relationship and pitch package-and-plan rather than one-off fix.
Napa city's plumbing segment is small — only 23 active plumbing contractors in the index. That changes the prospecting math: agencies can comfortably contact every operator in the market inside a week, which makes manual personalization and direct outreach tractable in a way it isn't in a 300-operator vertical.
The vulnerability distribution in Napa city's plumbing vertical skews high enough to justify investment: 0 of 23 operators — 0% — are sitting at 50+ on the composite score. 22% of the vertical is operating without a website, which is the cleanest yes/no filter available. The agency playbook in a distribution this heavy at the top is to rank by score, deduplicate against existing accounts, and pitch the top decile within the first two weeks before competitors touch them. Vulnerability decays as operators fix their gaps, so speed-to-contact is a real edge in this list.
US benchmarks: median review count 32, share of operators with no website 22%. Markets where either number sits well above the benchmark concentrate more agency-ready prospects per outreach hour.
Where the 23 plumbing contractors land on the 0–100 score
A sample of Napa city plumbing contractors we've profiled
- RENOS PLUMBINGplumbing contractor
- Ken Mays Plnmbing Incplumbing contractor
- Ken Johns Plumbing & Fireplumbing contractor
- Napa River Reclamation Distributionplumbing contractor
- Imboden Pumpsplumbing contractor
Showing 5 of 23. Vulnerability scores, phone numbers, line types and full enrichment data are available to signed-in members.
How we measure opportunity
Public-sector demographic data
Population, household income, home value, homeownership rate, median year structure built and self-employment density come from authoritative public demographic releases. Refreshed annually.
Live business records
Business names, addresses, ratings, review counts, websites, phone numbers and operating status come from live business records. Each profiled business is re-checked regularly so stale data drifts off the page.
Composite vulnerability score
We blend 19 signals (review velocity, star rating, website presence and freshness, ad pixels, hiring activity, competitor density and visual brand, plus eleven more) into a 0–100 score. Higher means more likely to engage with marketing services.
Related searches
Frequently asked
- How many plumbing contractors are in Napa city, CA?
- LocalVein's latest scan of Napa city identified 23 active plumbing contractors. Median review count is 47, with a median Google rating of 4.8 stars. Refreshed April 2026.
- How does LocalVein rank plumbing leads for vulnerability?
- LocalVein blends 19 signals (review velocity, star rating, website presence and freshness, ad pixels, hiring activity, competitor density, visual brand quality and several others) into a 0–100 vulnerability score. For Napa city's plumbing contractors, the median score is 9, with 0 operators scoring above 50 — those are the most likely to engage with new agency outreach.
- What percent of Napa city plumbing contractors have no website?
- 22% of plumbing contractors in Napa city have no website at all in our index. No website is the single strongest "leaving money on the table" signal we track, and most agencies start their outbound by sorting on this column.
- Can I get phone numbers and line types for Napa city plumbing contractors?
- Yes — LocalVein exports full phone numbers on every paid plan. Phone line type detection (mobile / landline / VoIP) is a Core-tier and above feature, which agencies use to route SMS-eligible prospects to a separate outreach sequence than landline-only operators. For Napa city's plumbing contractors, line types populate on the first paid scan and persist indefinitely — phone line types almost never change.
- How often is the Napa city plumbing list refreshed?
- Each plumbing contractor record is re-checked whenever a user scans the vertical. Napa city's demographic numbers (population, home value, demographic signals used in the vulnerability score) refresh annually. Most recent refresh on this page: April 2026.
The rest of plumbing contractors in Napa city is behind a free signup.
- 5 sample businesses
- Phones masked (last 2 digits)
- No phone line-type classification
- No CSV export
- No vulnerability ranking on the full list
- all 23 businesses
- Full phone numbers
- Ranked by vulnerability score
- Demographic intelligence per market
- Generic CSV export (CRM-ready)
See every Napa city plumbing contractor's score, phone, and line type
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