Natural Slate Roofing Inc

Contractor license: 840345; State license record
Based in: San Mateo
On San Francisco permits: Nov 2010 to Jun 2026
Last 24 months: 2 permits filed

11 permits since 2000: 11 completed.

CompletedIn progressNever finaledExpired or cancelled

This is the city’s permit record, not a license check. It does not show whether the state license is active, bonded or insured. How to read these records

Permits filed each year

How long permits take

Median days to final inspection, citywideMedian days to permit issued, citywideThis contractor’s finished permits

Each point is the quarter the permits were filed, for all building permits across San Francisco. A median counts only permits that have finished, so the shaded recent quarters look faster than they will end up: their slow permits have not finished yet. Hover a point for the slowest 10%. Gaps mean fewer than 5 permits. A rise in the issue line is the city’s review backlog, not the contractor.

Most recent permits

All

Filed	Outcome	Address	Work described on the permit	Declared cost
Jun 23, 2026	Completed final sign-off Jun 2026	2536 Baker St	reroofing - no torch. install tpo low slope roofing system and cooper coping. install composition roof. Details Permit 202606233743 Status complete Filed Jun 23, 2026 Permit issued Jun 23, 2026 Final sign-off Jun 26, 2026 Declared cost $80,500 Address 2536 Baker St reroofing - no torch. install tpo low slope roofing system and cooper coping. install composition roof. Open the permit page	$80,500
Aug 11, 2025	Completed final sign-off Jan 2026	2999 Pacific Av	reroof: 20 squares. 2000 square foot, remove 100 year old vermont slate roof. install new vermont slate roof. like for like. no hot work. Details Permit 202508112729 Status complete Filed Aug 11, 2025 Permit issued Aug 11, 2025 Final sign-off Jan 28, 2026 Declared cost $135,150 Address 2999 Pacific Av reroof: 20 squares. 2000 square foot, remove 100 year old vermont slate roof. install new vermont slate roof. like for like. no hot work. Open the permit page	$135,150
Jun 24, 2019	Completed final sign-off Aug 2019	290 Seacliff Av	reroofing Details Permit 201906244275 Status complete Filed Jun 24, 2019 Permit issued Jun 24, 2019 Final sign-off Aug 8, 2019 Declared cost $25,000 Address 290 Seacliff Av reroofing Open the permit page	$25,000
Apr 18, 2018	Completed final sign-off Jul 2018	1345 Montgomery St	reroofing Details Permit 201804186729 Status complete Filed Apr 18, 2018 Permit issued Apr 18, 2018 Final sign-off Jul 17, 2018 Declared cost $27,580 Address 1345 Montgomery St reroofing Open the permit page	$27,580
Sep 23, 2014	Completed final sign-off Sep 2014	85 Jordan Av	re-roofing existing detached garage with (n) simulated slate. similar to main house per permit #2013.10.23.0002. Details Permit 201409237065 Status complete Filed Sep 23, 2014 Permit issued Sep 29, 2014 Final sign-off Sep 30, 2014 Declared cost $2,000 Address 85 Jordan Av re-roofing existing detached garage with (n) simulated slate. similar to main house per permit #2013.10.23.0002. Open the permit page	$2,000
Jun 16, 2014	Completed final sign-off Jul 2014	658 43rd Av	reroofing Details Permit 201406168442 Status complete Filed Jun 16, 2014 Permit issued Jun 16, 2014 Final sign-off Jul 14, 2014 Declared cost $25,000 Address 658 43rd Av reroofing Open the permit page	$25,000
Sep 11, 2013	Completed final sign-off Nov 2013	87 Carmel St	reroofing. Details Permit 201309116540 Status complete Filed Sep 11, 2013 Permit issued Sep 11, 2013 Final sign-off Nov 6, 2013 Declared cost $8,500 Address 87 Carmel St reroofing. Open the permit page	$8,500
Feb 6, 2013	Completed final sign-off Sep 2014	425 Irving St	reroofing Details Permit 201302069566 Status complete Filed Feb 6, 2013 Permit issued Feb 6, 2013 Final sign-off Sep 9, 2014 Declared cost $6,950 Address 425 Irving St reroofing Open the permit page	$6,950
Jun 7, 2012	Completed final sign-off Jul 2012	214 Mallorca Wy	reroofing Details Permit 201206072089 Status complete Filed Jun 7, 2012 Permit issued Jun 7, 2012 Final sign-off Jul 18, 2012 Declared cost $7,500 Address 214 Mallorca Wy reroofing Open the permit page	$7,500
Aug 18, 2011	Completed final sign-off Sep 2011	249 07th Av	reroofing Details Permit 201108182785 Status complete Filed Aug 18, 2011 Permit issued Aug 18, 2011 Final sign-off Sep 28, 2011 Declared cost $16,000 Address 249 07th Av reroofing Open the permit page	$16,000
Nov 22, 2010	Completed final sign-off Dec 2010	655 Corbett Av	reroofing Details Permit 201011225497 Status complete Filed Nov 22, 2010 Permit issued Nov 22, 2010 Final sign-off Dec 1, 2010 Declared cost $7,550 Address 655 Corbett Av reroofing Open the permit page	$7,550