San Anselmo · CA

Chimney sweep and repair in San Anselmo

Ross Valley’s historic creek-side downtown — early-1900s masonry alongside newer hillside infill.

Nothing to commit to — just call and we’ll line up a time that works.

Repointing eroded mortar joints on a masonry chimney of an early-1900s home near downtown San Anselmo

The short answer

San Anselmo grew up around a seminary and a creek-side downtown in the early 1900s, and its historic core still carries genuine masonry construction from that era — the kind of stock that needs an actual mortar and crown assessment rather than a rule-of-thumb sweep. San Anselmo Creek runs through the middle of town and has flooded the downtown core more than once in the town’s history, and ground moisture near the creek is a real factor in how a chimney’s foundation settles over the decades, not just a historical footnote. Sheltered in the Ross Valley away from direct marine-layer exposure, San Anselmo runs somewhat drier than Sausalito or Tiburon, but its older stock still carries enough age to matter.

Local specifics

What is true about San Anselmo

  1. 01

    San Anselmo grew up around a seminary and a creek-side downtown in the early 1900s, and its historic core still carries genuine masonry construction from that era.

  2. 02

    San Anselmo Creek runs through the middle of town and has flooded the downtown core more than once in the town’s history, and ground moisture near the creek affects how a chimney’s foundation settles over decades.

  3. 03

    The town sits in the Ross Valley, sheltered from direct marine-layer exposure by the hills around it, so it runs somewhat drier than Sausalito or Tiburon but still damp enough for an older crown to need real attention.

  4. 04

    San Anselmo pairs closely with neighboring Fairfax as the Ross Valley’s twin historic downtowns, and its own small building department handles permitting for chimney work inside town limits.

Housing stock

What the housing stock means for the chimney work

San Anselmo’s downtown core carries early-1900s masonry construction from its seminary-town era, needing the mortar and crown attention stock this age genuinely requires. Properties closer to the creek carry an added foundation-moisture consideration that a hillside street further from the water doesn’t share. Newer infill toward Red Hill and the town’s edges runs more standard mid-century construction, and we scope each address on what’s actually there rather than assuming one San Anselmo standard.

Neighbourhoods: Downtown / San Anselmo Avenue · Red Hill · Seminary · Sleepy Hollow

Coverage shown is approximate — call and we will confirm it for your exact address.

Reviews

What the last 12 customers actually said

5.0

12 Google reviewscounted 2026-08-26

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  • Jillian Hodapp

    Heavy soot buildups around the chimney exit and the termination cap screen had to be swept away to stop persistent smoky backdrafts on windy nights.
  • Daniel Rodriguez

    Extensive soot discoloration on the fireplace brick ceased after a thorough cleaning that removed a significant draft blockage inside the smoke chamber corbels.
  • Angela Parker

    They had camera gear that allowed us to see the whole vertical flue way. It was good to see that our clay tiles had come throughout the severe winter without breaking.
  • david gabay

    Great service from start to finish! They were professional, on time, and left everything clean. Highly recommend for any chimney work.

Read all 12 reviews on Google

Questions

What people ask about San Anselmo

Does San Anselmo Creek’s flood history affect chimney foundations nearby?

It can — ground moisture near the creek affects how a masonry foundation settles over time, which is a real factor for older homes close to the water. We check foundation-level condition as part of any repair scope on a creek-adjacent property.

Is San Anselmo’s downtown housing older than the rest of town?

Generally yes — the core dates to the town’s early-1900s seminary era, with genuine masonry stock that needs mortar and crown attention age brings. Newer infill toward the town’s edges runs more standard mid-century construction.

Do you handle permits with San Anselmo’s own building department?

We can tell you what San Anselmo’s building department requires for a given scope of work — the town keeps its own small permitting office separate from the county’s.

How does San Anselmo compare to Sausalito for chimney moisture exposure?

San Anselmo sits sheltered in the Ross Valley away from the direct marine layer that reaches Sausalito daily, so it runs somewhat drier overall — though creek-adjacent ground moisture is its own separate factor worth checking.

Book a visit in San Anselmo

Describe what is going on and the right service gets sorted out on the call.

Or call (628) 296-4901 — we’ll confirm when we can help.

Tell us what changed.

Tell us what the fireplace is doing and what changed. Someone reads every message that comes in.

Nothing to commit to — just call and we’ll line up a time that works.

Prefer to talk? Call (628) 296-4901 — we’ll confirm when we can help.