No published contact details.
Lopez Heating is a plumbing contractor with 3 tracked San Francisco building-permit projects on record, with the latest filing in that record 201 days ago. Its filings (May 2025 to Dec 2025) are concentrated in Nob Hill and Twin Peaks, 100% residential. If you work at Lopez Heating, claim this page to add a description.
Filed 201 days ago
#1,796
by SF filing activity
among SF specialty contractors, 90 days to Aug 23, 2026
3
projects
from 44 filings
0/16
active weeks
weeks with a filing (16 weeks to Aug 23, 2026)
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Permit-backed projects · PermitPipeline’s independent record
$179K Twin Peaks single-family renovation
Active 10 months ago · Lopez Heating: specialty contractor
Shower pan liner water proof
GC named · Architect identified · Design firm identified · Engineer identified · 2 specialty contractors identified
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$120K Nob Hill multifamily renovation
Active 8 months ago · Lopez Heating: specialty contractor
Work category: 1m; installing indoor cassette and outdoor heat-pump. run new lineset from heat-pump to cassette.one condenser drain…
GC named · Architect identified · 2 specialty contractors identified
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$4K Visitacion Valley single-family renovation
Last active May 2025 · Lopez Heating: specialty contractor
Existing wall that need to move only 4" and add two outlets, install one electrical smoke detector
No GC named · 2 specialty contractors identified
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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.
3 project records for Lopez Heating: addresses, values, project teams
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Declared values3 on filetoo few for a rangeLast filed201 days agoNob Hill · Feb 27, 2026Last 90 days0 active0 newly filed
Filing activity · 16 weeks to Aug 23, 2026
MAY
JUN
JUL
AUG
Project mix · by use
Residential100%
Geography · by neighborhood
Nob Hill34%
Twin Peaks33%
Visitacion Valley33%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | Bill Xie Guan | Architecture | 1 | |
| 2 | Interstice Architects | Architecture | 1 | |
| 1 | O'reilly Construction | General contractor | 1 | |
| 2 | SFC Electric Co Inc | Electrical contractor | 1 | |
| 3 | Carreto Electric | Electrical contractor | 1 | |
| 4 | Prontito Plumbing*** See Notes*** | Plumbing contractor | 1 | |
| 5 | C & E Electric & Fire Alarm Services | 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 licenseNot connectedTrade licenses are held by BPELSG. That register is not part of the San Francisco permit record, and we do not yet read it.
Repeat working relationships0 firmsFirms this one appears with on more than one project, out of 9 in total.
Permit speed—Too few filings with a recorded issue date to publish a median.
Frequently asked questions
How many SF projects does Lopez Heating appear on?▾
PermitPipeline tracks 3 San Francisco building-permit projects for Lopez Heating (May 2025 to Dec 2025). 0 had filing activity in the last 90 days.
Does Lopez Heating work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of Lopez Heating's projects are commercial and 100% are residential (multifamily, small residential, or single-family). Based on permit records, not self-reported.
Where in San Francisco does Lopez Heating work?▾
34% of Lopez Heating's tracked San Francisco projects are in Nob Hill.
Which firms appear most often on the same filings as Lopez Heating?▾
Lopez Heating most frequently appears on the same San Francisco permit filings as Bill Xie Guan, Interstice Architects, O'reilly Construction. Appearing together indicates association on shared filings, not a proven working relationship.
Is Lopez Heating a plumbing contractor?▾
Lopez Heating is listed as a plumbing 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 Aug 23, 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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