Sweep & inspection
Caps & crowns
Flue relining
Masonry repair
Gas fireplace serviceLevel 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed
Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.
Chimney Company in Walnut, CA
Chimney repair in Walnut usually means one of three things: a cracked crown from years of Santa Ana wind and drought heat, a cap that’s lost its spark arrestor to wind-driven debris, or a fireplace that sat unused for so long the damper has seized and the gas log set needs proper retrofitting. Most Walnut homes were built between the 1970s and 1990s, and many fireplaces were designed as architectural features rather than daily heat sources. That changes how we inspect them. San Bernardino Chimney Sweep has served Walnut since 2018, and we find it and we fix it, so a homeowner doesn’t need to call a second company when an inspection turns up liner or masonry damage. Call (877) 516-7159 for a free estimate.
Why Walnut Homes Are Different
Walnut sits in the hot, dry inland San Gabriel Valley, where fireplaces see limited winter use compared to mountain communities. That doesn’t mean chimneys stay in good shape on their own. The real wear here comes from exposure: Santa Ana winds push debris against caps and spark arrestors, drought cycles shrink and crack masonry crowns, and the uphill-facing side of a chimney on a hillside tract takes the brunt of wind-driven grit and dry-rot conditions. A technician working Walnut’s hillside streets learns to check that side first.
The housing stock reinforces the pattern. Large single-family homes from the 1970s through the 1990s dominate, including many custom and semi-custom builds. Those homes typically have masonry fireplaces, often with gas log sets rather than true wood-burning setups. We regularly find fireplaces in Walnut that have not had a real wood fire in years. The flue looks fine from the living room, but the damper is stiff, the cap is loose, and the firebox needs a code-compliant retrofit rather than a routine sweep. Some older homes near the original core have aging flues and dampers that predate current screening standards. Homeowners here tend to be well-informed and want documentation, not just a quick brush-through. That’s what we deliver.
Styles & brands we work with
Our Main Walnut Services
The two services Walnut homeowners call about most are chimney sweeping and dryer vent cleaning. Each has its own dedicated Walnut page, so you can read the full detail there. Here’s the short version.
Chimney Sweep in Walnut
A sweep in Walnut is often less about heavy creosote removal and more about confirming what’s actually in the flue before the first burn of the season. Many of these fireplaces are decorative or gas-log, and the inspection matters more than the brushing. We check for cracked tiles, animal debris, and damper operation, then document what we find. Wind-driven debris against caps is a recurring issue on hillside lots. If you want the full walkthrough, see our Chimney Sweep in Walnut page.
Dryer Vent Cleaning in Walnut
Your dryer vent is a fire risk too, and Walnut’s large homes often have long vent runs from laundry rooms on upper floors or interior walls. Lint builds up in those long runs faster than homeowners expect, and the dryer works harder while the risk climbs. We clean the full run, not just the first few feet behind the dryer. That’s a core service for us, not an afterthought. Full details are on the Dryer Vent Cleaning in Walnut page.
What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Chimney Repair in Walnut
Chimney repair in Walnut usually starts with something a homeowner spotted from the yard: a cracked crown, a missing cap, or flashing that’s pulling away from the roofline. These homes were built well, but four decades of Santa Ana wind and drought heat take a toll on exterior masonry and metal. Inside the flue, the common issue is an older clay liner that has cracked from years of thermal cycling, even with light fireplace use. Because Walnut sits in a wildfire-conscious region, homeowners here often want the repair documented and code-compliant, not just patched. That’s the standard we work to. For the broader scope of what we fix, see our Chimney Repair service hub.
Chimney Cap Installation
Signs you need it
You can see daylight through a rusted-out cap from the yard, or birds and debris are getting into the flue.
What it costs in Walnut
Chimney cap installation in Walnut typically runs $110 – $190 for a standard contractor-grade cap, depending on flue size and roof access.
How we do it
We measure the flue, mount the new cap with a proper spark arrestor, and secure it to the crown so Santa Ana winds don’t loosen it.
Chimney Cap Replacement
Signs you need it
The existing cap is rusted through, the spark arrestor mesh is torn, or wind has bent the mounting brackets.
What it costs in Walnut
Chimney cap replacement in Walnut typically ranges $110 – $200, including removal of the old cap and disposal.
How we do it
We remove the damaged cap, inspect the flue opening for any damage beneath it, and install a properly sized replacement from our supplier lineup, which includes Famco and Copperfield.
Chimney Liner Installation
Signs you need it
A camera inspection shows cracked or missing clay tile sections, or the existing liner no longer meets code for the appliance connected to it.
What it costs in Walnut
Chimney liner installation in Walnut typically runs $1,500 – $3,200, depending on flue height, roof pitch, and whether we use a flexible system like DuraFlex.
How we do it
We run a camera inspection first, size the liner to the appliance, and install a DuraFlex flexible liner system rather than tearing out the masonry from the inside.
Chimney Flashing Repair
Signs you need it
You see water staining on the ceiling near the chimney, or the flashing has pulled away from the roofline after wind storms.
What it costs in Walnut
Chimney flashing repair in Walnut typically ranges $250 – $650, depending on how much flashing needs to be replaced and whether the roofline pitch makes access harder.
How we do it
We remove the old flashing, install new metal in the proper stepped pattern, and seal the joints with roofing-grade sealant that holds up to heat and wind.
Chimney Crown Repair
Signs you need it
The concrete crown has visible cracks, spalling, or chunks missing, and water is pooling on top of the chimney.
What it costs in Walnut
Chimney crown repair in Walnut typically runs $170 – $240 for a standard-sized crown that needs resurfacing.
How we do it
We clean the crown, fill cracks with proper masonry material, and resurface it so water sheds away from the flue instead of soaking into the masonry.
What Chimney Repair Costs in Walnut
| Item | Typical range in Walnut |
|---|---|
| Chimney cap installation | $110 – $190 |
| Chimney cap replacement | $110 – $200 |
| Chimney liner installation | $1,500 – $3,200 |
Do I really need a new liner, or can the old one be patched?
Sometimes a liner can be resurfaced with HeatShield rather than fully replaced. We show you the camera footage before recommending either path, and we’ll tell you plainly when a patch is safe and when it isn’t. Call (877) 516-7159 and we’ll walk you through what we see.
How long does a chimney liner repair take in Walnut?
Most liner installations are completed in a single day. HeatShield resurfacing can take a little longer because the material needs cure time, but we’ll give you a clear timeline before we start. Call (877) 516-7159 for an exact quote, estimates are free.
Brands We Service in Walnut
Contractor-grade materials, not hardware-store substitutes. We work with a curated lineup that includes Famco, Copperfield, DuraFlex, and HeatShield. Because we keep these supplier relationships active, parts arrive quickly and warranty claims don’t stall. Read more on our brands page.
See the difference
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After
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AfterPricing for Chimney Company in Walnut, CA
| Service | Typical range in Walnut |
|---|---|
| Chimney cap installation | $110 – $190 |
| Chimney cap replacement | $110 – $200 |
| Chimney liner installation | $1,500 – $3,200 |
| Chimney flashing repair | $250 – $650 |
| Chimney crown repair | $170 – $240 |
What pushes price up in Walnut: steep hillside roof pitches, chimneys with multiple flues, and repairs that require matching masonry colors on custom-built homes. We give you a flat price before any work starts, so the number we quote is the number you pay.
Neighborhoods We Serve in Walnut
We work across Walnut’s hillside tracts and the flatter neighborhoods near the original core. Response times are typically faster for homes in the central and southern parts of the city, and we schedule hillside work in the morning when wind is lighter. Representative areas include:
- Snow Creek neighborhood
- Walnut Ranch area
- Three Oaks
- Timberline
- Near Suzanne Park
Service Area – Cities Near Walnut
We also serve homeowners in the surrounding San Gabriel Valley and nearby communities. If you’re in South San Jose Hills, CA, Rowland Heights, CA, West Covina, CA, or Pomona, CA, we can typically schedule you the same week. Call (877) 516-7159 and we’ll confirm the next available slot.
Serving Walnut, CA — Our Local Coverage Area
We’re based in the Walnut area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs About Chimney Company in Walnut
Most chimney repairs we do in Walnut (caps, crowns, flashing, liner resurfacing) don’t require a permit. If your job does, we’ll tell you before the work starts. Call (877) 516-7159 and we can review your specific situation.
We typically schedule inspections in Walnut within a few business days. Hillside access doesn’t slow us down, but we do schedule morning appointments when Santa Ana winds are forecast to keep roof work safer and more accurate.
Yes. We provide camera inspection footage and a written report with photos for every job where we open the flue. Walnut homeowners often want documentation for insurance or resale, and we make that standard practice.
For chimney repair, sweeping, or dryer vent cleaning in Walnut, call San Bernardino Chimney Sweep at (877) 516-7159 for a free estimate. We’ll tell you what’s actually going on, show you the evidence, and fix what we find.
What happens when you call
- 1A real person answersNo phone trees — talk to a local chimney cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you — the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Walnut Customers Say
"Crown was cracked and taking water. Repaired it rather than quoting a rebuild, which the previous company had pushed hard for."
— Jason Brooks"Cap keeps the birds out now, which after two springs of scratching noises is worth every penny."
— Rafael Torres"Liner was cracked in two places. He walked me through the repair options honestly, including the one that was cheaper for him and better for me."
— Priya Rao