(415) 337-91331234 Geneva Ave, San Francisco, CA 94112
Ruby Plumbing & Electrical is a general contractor with 16 tracked San Francisco building-permit projects on record, with the latest filing in that record 63 days ago. Its filings (Jan 2025 to Aug 2026) are concentrated in Outer Richmond and Inner Richmond, 83% residential. A typical project in the record declares $2K–$50K. If you work at Ruby Plumbing & Electrical, claim this page to add a description.
Filed 63 days ago
#239
by SF filing activity
among SF general contractors, 90 days to Oct 4, 2026
16
projects
from 37 filings
5/16
active weeks
weeks with a filing (16 weeks to Oct 4, 2026)
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Permit-backed projects · PermitPipeline’s independent record
$69K Outer Richmond renovation
Active 2 months ago · 4 filings · Ruby Plumbing & Electrical: GC
Online electrical permit: category 4a: installation of fire warning and controlled devices of 10,001 - 30,000 ft²
GC named · Design firm identified · 2 specialty contractors identified
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$330K Bayview Hunters Point tenant improvement
Last active Aug 2025 · 2 filings · Ruby Plumbing & Electrical: GC
Electrical tenant improvement to inlcude new outlets, lights and switches for office, kitchen and 2 bathrooms
GC named · Architect identified · 2 Design firms identified · Engineer identified · 4 specialty contractors identified
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Inner Richmond single-family renovation
Grade DActive 2 months ago · Ruby Plumbing & Electrical: GC
Rev: change interior starcase directions on 2/f to lower lvl. add new electrical panelboard. relocate laundry. plumbing fixtures reconfig…
GC named · Architect identified · Engineer identified
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Scopes, values, teams and filing history for every one
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Neighborhood, filing date, scope and declared value are shown here. Exact addresses,
owner names and mailing addresses, and full filing histories are part of the paid product.
16 project records for Ruby Plumbing & Electrical: addresses, values, project teams
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Typical project$2K–$50K$5K typical29% of the SF median ($17K)Last filed63 days agoInner Sunset · Aug 5, 2026Last 90 days4 active2 newly filed
Filing activity · 16 weeks to Oct 4, 2026 · peak Jul 2026
JUN
JUL
AUG
SEP
Project mix · by use
Commercial17%
Residential83%
Geography · by neighborhood
Outer Richmond34%
Inner Richmond25%
Sunset/Parkside25%
Bayview Hunters Point8%
Bernal Heights8%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | Inconn Design | Architecture | 2 | |
| 2 | Bill Xie Guan | Architecture | 1 | |
| 1 | Hertz Electric | General contractor | 1 | |
| 2 | Mac Tec Construction | General contractor | 1 | |
| 3 | MZ Construction Company | General contractor | 1 | |
| 4 | R Lowy Fire Protection Inc | General contractor | 1 | |
| 5 | Wells Electrical, Inc | General contractor | 1 |
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Owner and developer names, and the projects behind each connection, are part of the Leads product.
Firms that appear on the same San Francisco permit filings. Association on shared filings, not a proven working relationship.
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State licenseCSLB Contractor #748426As filed on 2 permits
Repeat working relationships1 firmFirms this one appears with on more than one project, out of 11 in total.
Permit speed—Too few filings with a recorded issue date to publish a median.
Frequently asked questions
How many SF projects does Ruby Plumbing & Electrical appear on?▾
PermitPipeline tracks 16 San Francisco building-permit projects for Ruby Plumbing & Electrical (Jan 2025 to Aug 2026). 4 had filing activity in the last 90 days.
Does Ruby Plumbing & Electrical work on commercial or residential projects?▾
Across its tracked San Francisco filings, 17% of Ruby Plumbing & Electrical's projects are commercial and 83% are residential (multifamily, small residential, or single-family). Based on permit records, not self-reported.
Where in San Francisco does Ruby Plumbing & Electrical work?▾
34% of Ruby Plumbing & Electrical's tracked San Francisco projects are in Outer Richmond.
What is a typical Ruby Plumbing & Electrical project worth?▾
The median declared value across the 9 San Francisco projects Ruby Plumbing & Electrical has on record that state one is $5K (declared value on the permit filing, not contract value).
Which firms appear most often on the same filings as Ruby Plumbing & Electrical?▾
Ruby Plumbing & Electrical most frequently appears on the same San Francisco permit filings as Inconn Design, Bill Xie Guan, Hertz Electric. Appearing together indicates association on shared filings, not a proven working relationship.
Is Ruby Plumbing & Electrical a general contractor?▾
Ruby Plumbing & Electrical is listed as a general contractor on its San Francisco permit filings. Roles on this profile are derived from the role each firm holds on public SF DBI filings.
Public aggregate — full project records are part of the paid leads product. Ranking, filing activity, project mix and geography were last recomputed Oct 4, 2026. Project counts, declared values and filing dates are read live from SF DBI filings.
How far back does this record go?▾
This page covers the recent permit record, not the firm’s full history. A firm’s earliest filing here means it was already working when our record opens, not that it started then.
Sources
San Francisco Department of Building Inspection permit filings.
Record source
Read directly from SF DBI filings.
Photography
None are shown until the firm supplies them.
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