Concord · Contra Costa County · 20-mile radius

Chimney sweep and repair in Concord

One local crew, the whole of Contra Costa County — sweep, inspection, repair and cap work, call to confirm today’s hours.

No commitment either way — we call back and settle on a time that works.

Two new stainless spark-arrestor caps fitted on a tile-roofed chimney above a Diablo Valley rooftop, Mount Diablo visible in the haze behind
Spotted on this job

Fresh stainless mesh going in on a Diablo Valley rooftop — set before fire season, not scrambled together during it.

  • 5.0 from 10 Google reviews, counted 2026-08-26
  • 5 chimney services, start to finish
  • 11 Contra Costa cities covered
  • 20 miles from central Concord, door to door
A technician fitting a new stainless steel chimney cap with spark-arrestor mesh on a tile-roofed Concord home, dry hillside visible in the background

Spark arrestors, by code

The code spec behind every cap we fit

Real numbers from the actual fire code — not a figure somebody in the trade just eyeballed.

Mesh opening size
3/8 in. to 1/2 in.
Material
19-gauge galvanized or 24-gauge stainless
Net free area
At least 4× the flue’s net free area
Accessibility
Removable for flue cleaning, per code
WUI-adjacent properties
Ember-resistant mesh checked against defensible-space rules

A new stainless cap and code-sized mesh, fitted and checked before the crew leaves.

California Fire Code, based on the International Fire Code, spark-arrestor provisions.

The dry-season reality

What months of 90°F+ heat does to a chimney crown

Concord runs long, dry stretches of temperatures well above 90°F through the summer, and a masonry crown sitting exposed to that heat expands and contracts until hairline cracks open from thermal cycling alone — before a single drop of winter rain ever falls. By the time the rainy season arrives, a crown that quietly cracked in July is already primed to let water straight into the masonry core.

Fall adds a second stress on top of that: Diablo winds, the hot, dry offshore gusts named for the mountain at the center of the county, can drive embers directly at a loose or corroded spark-arrestor cap during fire season. We check cap and crown condition together on every visit, not just the part that prompted the call.

A crown that cracks in July gets found by the rain in December — catching it first is the difference.

Crown, mesh, mortar — all three get a look on every single visit, whatever brought us out that day.

California Fire Code spark-arrestor provisions; Bay Area Air Quality Management District regional data.

A sun-cracked concrete chimney crown on a Concord-area home, hairline fractures visible in bright afternoon light
Heat-cracked crown, found before the first winter rain reached it.

Reviews

What the last 10 customers actually said

5.0

10 Google reviewscounted 2026-08-26

  • 510
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  • Barbara Rhodes

    After a worker cleaned the smoke chamber and swept away baked-on soot from the upper flue walls, the smell of creosote that had been there since the warm summer months was gone.
  • Norma Peterson

    Discolouration on the brick facing led to a deep inspection and sweep, removing concealed creosote pockets behind the lintel, eliminating smoke spilling across the room.
  • Evan Hughes

    Very concerning chimney downdraft caused by strong winds was rectified when the sweep eliminated a substantial soot ring at the crown that had been obstructing the natural exit flow.
  • Kannon Odom

    Our winter parties were about to be ruined by the extreme draft resistance, but a planned sweep found a collapsed inside baffle, cleared the route, and optimized the heat distribution.
  • Daniel Rodriguez

    We cleaned out our wood burning fireplace insert just before winter set in. The airway is wide open, the heat output this season is considerably better.

Read all 10 reviews on Google

Where we work

Concord and the rest of Contra Costa County

A twenty-mile radius from central Concord, covering eleven cities plus one Solano County neighbor — one crew, one appointment book.

That circle takes in the Diablo Valley core — Pleasant Hill, Walnut Creek, Clayton — runs south into the San Ramon Valley through Danville and San Ramon, follows the Delta corridor east to Pittsburg, Antioch and Brentwood, and stretches across the county line to Vallejo on the Carquinez Strait. Not seeing your town listed? Give us a call and we’ll check it against the map directly.

Nation Wide Chimney Sweep & Repair Concord

5.010 reviewsChimney sweep

Pulled live from Google — nothing here is a screenshot or an old snapshot.

Open our Google profile

How a visit goes

From the first call to the write-up

  1. 1

    Reach out however works

    Phone or the contact form both land in the same place — describe what’s going on and we’ll match it to the right service.

  2. 2

    Pick a day that fits

    We build the visit around your schedule — call ahead and we’ll confirm what’s open this week.

  3. 3

    Cover the space first

    Nothing touches the firebox — brush, vacuum, tool — until drop cloths are down and the room’s protected.

  4. 4

    Do the actual work

    Sweep, inspection, repair or cap installation, walked through as it happens rather than summarized after the fact.

  5. 5

    Leave you a record

    A written note of exactly what got done and anything worth watching, whether or not it needs action right now.

Questions

What people ask before calling

Is there a physical address to visit?

There isn’t — same as what our Google listing shows, this runs as a service-area business with no storefront. The work happens at your property, anywhere inside the twenty-mile Concord radius.

What hours are you open?

Best to just call {{business.phoneDisplay}} and confirm what’s available today before you plan a visit around it.

Can I trust the reviews shown here?

You can check them yourself — every one of the 10 sits unedited on our actual Google Business Profile, which the page links to directly rather than pulling curated snippets.

Gas fireplace, not wood — still covered?

It is, though a gas unit gets checked differently, focused on venting and the burner rather than creosote — just flag which type you’ve got when booking.

What actually happens during a free estimate?

We look at what you’ve described and either scope it on the spot if it’s simple, or schedule a proper inspection first if it needs one — no pressure to commit either way.

My town isn’t on the list — am I still covered?

Probably — anywhere roughly within twenty miles of central Concord is fair game. Give us a call and we’ll confirm before you book.

Tell us what changed

Describe whatever’s different about it since last winter, and we’ll give you a straight read on what’s actually going on.

Prefer to talk first? Call (925) 854-4306 — call to confirm today’s hours.

Serving Concord, Pleasant Hill, Walnut Creek, Clayton, Martinez, Pittsburg, Danville, Antioch, San Ramon, Vallejo and Brentwood.

Tell us what changed.

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

No commitment either way — we call back and settle on a time that works.

Prefer to talk? Call (925) 854-4306 — we’ll confirm when we can help.