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 often means dealing with cracked firebox mortar and clay-tile flue joints that have quietly degraded since the house went up in the 1980s or 1990s. Hickory Chimney Sweep handles the full sequence: clean it, repair it, protect it. We’re a full-scope fire-safety outfit, not a seasonal sweep crew that documents problems and hands you a referral. If we find damage during a cleaning, we fix it, often the same visit, using HeatShield resurfacing or a DuraFlex liner system. Call (855) 554-2841 when you want the chimney actually repaired, not just inspected.
Why Walnut Homes Are Different
Walnut’s housing stock is mostly 1970s through 1990s tract and semi-custom builds: stucco walls, concrete tile roofs, and masonry fireplaces with clay-tile flues. That means thousands of chimneys are hitting the age where firebox mortar crumbles, flue joints separate, and the original chimney cap rusts through. Most of these fireplaces were built for occasional decorative use, so a high share have never had consistent sweeping. On hillside and canyon-edge streets near the Walnut/Diamond Bar boundary, Santa Ana winds routinely dump eucalyptus leaves and debris into chimney caps. Technicians here regularly pull bird and rodent nests out of flues that haven’t been used since the previous winter. The work is less about heavy creosote and more about clearing dry debris and verifying the flue hasn’t cracked from years of temperature swings. Walnut is unincorporated in some pockets and part of the City of Walnut in others, but chimney work doesn’t typically require a city permit unless structural rebuild is involved. We’ll tell you plainly if yours does.
Styles & brands we work with
Our Main Walnut Services
Walnut homeowners call us most often about two jobs: annual chimney cleaning and dryer vent cleaning. One call covers both, and that matters because these are the two appliance-fire sources most homes ignore.
Chimney Sweep in Walnut
A Walnut chimney sweep job usually starts with clearing debris that accumulates during the hot, dry months: dust, leaf litter, and nesting material that Santa Ana winds push into open flues. Because fireplaces here get used only a handful of nights each winter, buildup is rarely thick creosote. It’s more often a blocked flue or an animal nest. We remove all of it, run a camera inspection, and give you a photo report so you can see exactly what we saw. If we find cracked mortar or a damaged liner, we can usually repair it before we leave. See the full scope on our Chimney Sweep in Walnut page.
Dryer Vent Cleaning in Walnut
Dryer vents in Walnut homes clog with lint, and the long vent runs common in 1980s two-story floor plans make it worse. A clogged dryer vent is a leading cause of U.S. residential fires, and it also makes your dryer work harder and longer. We clean the full vent run from the dryer to the exterior termination, using professional equipment sized for the duct diameters found in Walnut’s tract housing. The job takes under an hour in most homes. If the vent termination has a damaged cap or bird guard, we replace it with a Famco or Gelco part while we’re there. Details on our 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 is driven by the region’s clay soils and two decades of thermal cycling. Walnut’s heavy clay soil expands and contracts with moisture, and while it doesn’t usually crack foundations here the way it can in some foothill cities, it does transfer subtle movement into masonry chimneys over time. Combine that with Santa Ana wind grit and occasional hot fires in a flue that wasn’t designed for them, and you get cracked firebox mortar and flue damage that a sweep alone won’t fix. Our repair work starts with a camera inspection so you can see the condition yourself. Nothing gets recommended without photo evidence, and if the chimney can safely wait a season, we tell you that too. This is the core of what we do, and it’s covered in depth on our Chimney Repair page. Here’s how the specific repair jobs break down.
Chimney Cap Installation
Signs you need it
You hear birds or rodents inside the flue, find debris falling into the firebox, or see rust stains running down the chimney’s exterior from a failing cap.
What it costs in Walnut
Chimney cap installation in Walnut typically runs $250 to $550, including the cap and the work of securing it to the flue.
How we do it
We measure the flue, select a properly sized cap in stainless steel or copper, seal and mechanically fasten it so Santa Ana wind gusts can’t lift it, and test the draw.
Chimney Cap Replacement
Signs you need it
The existing cap is rusted through, missing sections, or the mesh screen has torn open enough to let birds and squirrels in.
What it costs in Walnut
Chimney cap replacement in Walnut usually falls between $300 and $650, depending on the flue size and whether the old cap needs grinding off or just unbolts cleanly.
How we do it
We remove the old cap without damaging the flue tile, clean the mounting surface, and install a new Famco or Gelco cap sized for Walnut’s common clay-tile flue dimensions.
Chimney Liner Installation
Signs you need it
A camera inspection shows cracked flue tiles, gaps at the joints, or a liner that has thinned enough to be a fire risk.
What it costs in Walnut
Chimney liner installation in Walnut typically runs $2,800 to $5,500 for a full reline using a DuraFlex flexible liner system sized to your flue.
How we do it
We confirm the flue dimensions, run the DuraFlex liner down the full length, insulate where the path needs it, and connect it properly at the appliance collar and the top.
Chimney Flashing Repair
Signs you need it
You see water staining on the ceiling near the chimney, damp spots on the masonry, or the flashing has visibly separated from the roofline.
What it costs in Walnut
Chimney flashing repair in Walnut generally runs $400 to $900, depending on how much the existing flashing has pulled away and whether the surrounding tile roof needs relief cuts.
How we do it
We lift the surrounding concrete tile carefully, remove old flashing, install new step and counter flashing, and seal it so the next Santa Ana rain event doesn’t leak into the house.
Chimney Crown Repair
Signs you need it
The concrete crown on top of the chimney is cracked, spalling, or holding water, which will eventually let moisture into the masonry and flue below it.
What it costs in Walnut
Chimney crown repair in Walnut typically falls between $600 and $1,200, depending on how much of the crown needs resurfacing versus full recasting.
How we do it
We remove the deteriorated material, build a proper crown form with downward slope and a drip edge, and cast a new surface that sheds water away from the flue.
What Chimney Repair Costs in Walnut
| Item | Typical range in Walnut |
|---|---|
| Chimney cap installation | $250 – $550 |
| Chimney cap replacement | $300 – $650 |
| Chimney liner installation (DuraFlex) | $2,800 – $5,500 |
Do I really need a new liner if my chimney is only used a few times a year?
Yes, if the existing liner is cracked or separated at the joints, the fire risk is real even with occasional use. Heat and gases can escape through gaps into the chimney chase. Camera inspection shows the condition before any recommendation is made.
Can you repair just the firebox mortar without replacing the whole chimney?
Usually, yes. Cracked firebox mortar in Walnut’s 1980s and 1990s masonry fireplaces can typically be repointed or resurfaced with HeatShield, which is far less invasive than a full rebuild. We’ll show you the damage on camera before ever recommending the scope.
Brands We Service in Walnut
We stock and install professional-grade parts from the same suppliers certified chimney contractors specify: HeatShield for flue resurfacing, Olympia Chimney for liners and components, plus Famco and Gelco caps and terminations. Parts are on the truck, not ordered in, so most repair work happens the same visit. See our brands for the full list and why we don’t use hardware-store generics.
See the difference
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After
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After
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AfterPricing for Chimney Company in Walnut, CA
| Service | Typical range in Walnut |
|---|---|
| Chimney sweep (standard cleaning) | $169 – $289 |
| Chimney sweep with camera inspection | $189 – $329 |
| Dryer vent cleaning | $99 – $189 |
| Chimney cap installation | $250 – $550 |
| Chimney cap replacement | $300 – $650 |
| Chimney crown repair | $600 – $1,200 |
| Chimney flashing repair | $400 – $900 |
| Chimney liner installation (DuraFlex) | $2,800 – $5,500 |
| HeatShield flue resurfacing | $2,500 – $4,800 |
What pushes price up in Walnut is usually liner access: two-story roof pitches on concrete tile and tight chase clearances add labor time, same as the age of the firebox, which is often original to the home. We give you an upfront price before any work begins. No surprise line items, and any problem found on camera gets explained with the photo evidence in your report.
Neighborhoods We Serve in Walnut
Hickory Chimney Sweep serves all of Walnut, including the 91788, 91789, and 91795 ZIP codes. We know the hillside streets near the Diamond Bar boundary tend to collect more wind-blown debris in the caps, and we stock parts sized for the flue dimensions common in the tract builds throughout the city.
- Snow Creek
- Walnut Country Estates
- Paseo Del Prado
- Three Oaks
- Canyon Crest
Typical scheduling turnaround in Walnut is within the same week, often sooner. Call for the next open slot.
Service Area – Cities Near Walnut
Walnut sits at the edge of the San Gabriel Valley, and we run the same crews through the neighboring communities. We serve homeowners in South San Jose Hills, CA, Rowland Heights, CA, West Covina, CA, and Valinda, CA. If you’re on the city line, we’ll give you a straight answer on scheduling before you book.
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 Walnut appointments can be scheduled within the same week, and we don’t promise same-day service. Walnut’s service area is dense and we keep enough crews and parts stocked to avoid long waits. Call (855) 554-2841 and we’ll tell you the next open slot.
Most chimney cleaning and repair work doesn’t require HOA approval in Walnut because it happens on the roof and doesn’t change the structure’s street view. If your HOA has rules about cap style or roof access, we can work with whatever they require. Replacement caps matching the existing profile usually pass without issue.
Yes, we serve 91788, 91789, and 91795, including the hillside streets near the Diamond Bar boundary where debris buildup under caps is worse. If you’re on the edge of Walnut and unsure, call and we’ll confirm the service area. Estimates are free.
If your Walnut chimney hasn’t been inspected in recent years, or you found debris in the firebox after a windy stretch, call Hickory Chimney Sweep at (855) 554-2841. We’ll set a time, inspect the flue on camera, and give you an upfront price to clean it, repair it, and protect it.
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
"Swept it, capped it, and installed a proper damper. The downdraft smell in the summer that we'd lived with for years is gone."
— Rachel Hayes"Level two inspection before we bought the house. The report was detailed enough to use as a negotiating point and he explained every photo in it."
— Lucia Mendoza"Honest people. That's getting rare."
— Danielle Rhodes