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 comes down to one of two jobs: fixing a failed prefab firebox from the 1980s or 90s, or addressing water damage at the crown and flashing. We’re Ashwood Chimney Sweep, and we’ve been working on Walnut chimneys since 2012. Most of the repair calls we take here start with a homeowner who pulled off the fireplace cover for the first time in a decade and found cracked refractory panels, a rusted cap, or creosote so hardened it won’t brush off. Call us at (833) 805-3229 and we’ll tell you exactly what’s wrong.
Why Walnut Homes Are Different
The hillside tracts off Amar Road and Lemon Avenue were built fast in the 1980s and 90s, and the fireplaces were factory-built prefab units. Those fireboxes were never meant to last forty years without attention, but Walnut’s mild winters mean many of them have barely been used. Fireplaces sit idle from April through November, and that’s when the real problems start. Creosote from the last fire hardens into a glaze that a standard brush won’t touch. Birds and bees move into caps and flues. Refractory panels, the ceramic-looking panels inside the firebox, crack from age and the occasional Santa Ana-driven draft reversal. In the older ranch pockets near Valley Boulevard, we see masonry chimneys with clay-tile flues that are spalling from decades of thermal cycling and zero maintenance. The chimney sweep market here isn’t about rebuilding masonry, it’s about rescuing prefab units that were ignored for a generation.
Styles & brands we work with
Our Main Walnut Services
Walnut homeowners call us most often about two things: getting a neglected fireplace swept and inspected, and clearing dryer vents that haven’t been touched since the house was built. Both are fire-safety work, and both connect to the same ventilation system thinking.
Chimney Sweep in Walnut
A sweep in Walnut is rarely a quick brush-through. The prefab flues in the Amar Road hillsides collect creosote that bakes hard during the long warm season. We scrape and brush the full flue, remove any nests or debris, and inspect the firebox, damper, cap, and visible liner. If the chimney hasn’t been opened in years, expect a longer first appointment. Get the full detail on our Chimney Sweep in Walnut page.
Dryer Vent Cleaning in Walnut
Two-story Walnut homes often run dryer vents through walls and up toward the roof, which means lint buildup collects at every bend. A clogged dryer vent is a fire risk, not a nuisance. We clear the full run from dryer to exterior termination, check the vent cap, and confirm airflow at the exit point. Treat your dryer vent as seriously as your chimney. Read the specifics 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 heavily weighted toward prefab fireplaces installed in the 1980s and 90s. Those original units are now at the end of their service life, and the common failure is cracked refractory panels inside the firebox, along with rusted or missing chimney caps that let birds and water into the flue. In the older Valley Boulevard ranch homes, we more often find crown cracks and deteriorated clay-tile flue liners that need structural attention. That’s what most of our repair calendar looks like. Since 2012, we’ve repaired more failed prefab units in Walnut than we can count, and most homeowners had no idea anything was wrong until we put a camera up the flue. The repair work we do falls under Chimney Repair, and it almost always starts with an inspection, never a guess.
Chimney Cap Installation
Signs you need it
You hear birds or bees inside the fireplace, find debris falling into the firebox, or see rust flakes around the flue opening, meaning the existing cap has failed or was never installed.
What it costs in Walnut
Chimney cap installation in Walnut typically runs $300 to $700, depending on flue size and whether we’re replacing a failed cap or fitting one to an uncapped clay-tile flue on an older Valley Boulevard home.
How we do it
We measure the flue, select a stainless cap from Olympia Chimney stock, secure it to the flue or crown with mechanical fasteners, and seal the attachment points against water.
Chimney Cap Replacement
Signs you need it
Your existing cap is rusted through, missing sections of mesh, or blew off during a Santa Ana wind event, leaving the flue open to rain and animals.
What it costs in Walnut
Chimney cap replacement in Walnut is typically $350 to $750, with the higher end covering larger multi-flue caps on two-story homes where the roof pitch adds ladder time.
How we do it
We remove the old cap, clean the flue rim, check the mortar or metal condition beneath, and install a matched replacement with new mechanical attachments.
Chimney Liner Installation
Signs you need it
Your clay-tile flue is spalling, cracked, or missing sections, or you’re switching to a gas insert and need a properly sized liner for the new appliance.
What it costs in Walnut
Chimney liner installation in Walnut runs $1,900 to $4,800, with the range driven by flue height on two-story homes, liner material, and whether the old flue must be broken out first.
How we do it
We run a camera inspection to confirm flue condition, select a DuraFlex liner system sized for the appliance, drop the liner from the roof, and connect it through a proper top plate and appliance connector.
What Chimney Repair Costs in Walnut
| Item | Typical range in Walnut |
|---|---|
| Chimney cap installation | $300 – $700 |
| Chimney cap replacement | $350 – $750 |
| Chimney liner installation | $1,900 – $4,800 |
What pushes prices up in Walnut is roof access. The hillside homes off Amar Road often have steep roof pitches, and two-story construction means longer ladder runs and more setup time. Every repair quote is a flat price agreed before we start, so the roof access and pitch are figured in upfront, not added as a surprise.
How much does a chimney liner cost in Walnut?
A liner installation in Walnut typically runs $1,900 to $4,800. Two-story flues cost more because the liner is longer and roof access takes more time. We quote a flat price after the camera inspection. Call (833) 805-3229 for a free estimate.
Can you repair a prefab fireplace in Walnut without rebuilding the firebox?
In most cases, yes. Failed refractory panels can be replaced individually, and many flue problems are fixed with a liner rather than a rebuild. If HeatShield restoration is a fit, we can restore a deteriorating flue without tearing out masonry. Call us for a free assessment at (833) 805-3229.
Brands We Service in Walnut
We stock and install components from Olympia Chimney, Famco, and Copperfield. DuraFlex liner systems are on hand for liner replacements, and Copperfield supplies our cap and termination stock. Sourcing through the professional trade means we’re not improvising with retail parts, and turnaround on most Walnut repair jobs is measured in days, not weeks. See our brands for the full lineup.
See the difference
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AfterPricing for Chimney Company in Walnut, CA
| Service | Typical range in Walnut |
|---|---|
| Chimney sweep (standard) | $180 – $340 |
| Dryer vent cleaning | $120 – $250 |
| Chimney cap installation | $300 – $700 |
| Chimney cap replacement | $350 – $750 |
| Chimney liner installation | $1,900 – $4,800 |
| Chimney crown repair | $400 – $900 |
| Chimney flashing repair | $350 – $800 |
Prices in Walnut trend toward the upper part of these ranges when we’re working on steep hillside roofs off Amar Road or Lemon Avenue, where ladder setup and safety anchoring take longer. Every job is a flat price agreed before we start, and the camera inspection that informs the quote is included.
Neighborhoods We Serve in Walnut
We work across all three Walnut ZIP codes: 91788, 91789, and 91795. The hillside tracts above Amar Road and the older ranch streets near Valley Boulevard are the two areas we see most, but no neighborhood in Walnut is outside our range. We typically schedule Walnut appointments within one to two weeks, with extra availability before the fall burning season.
- Hillside tracts off Amar Road
- Lemon Avenue corridor
- Valley Boulevard ranch pockets
- Walnut Ranch Park area
- Snow Creek and Creekside neighborhoods
Service Area – Cities Near Walnut
Ashwood Chimney Sweep serves Walnut and the surrounding communities from our Fontana base. If you live just outside Walnut, we cover Rowland Heights, CA, West Covina, CA, Pomona, CA, and South San Jose Hills, CA as well. The same crew, the same flat-price quote process, and the same camera-backed inspection standard apply everywhere we go.
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 inspections are scheduled within one to two weeks of your call. If you’re buying or selling, we can usually work around your escrow timeline. Call (833) 805-3229 and we’ll find a slot.
Most liner installations and cap replacements don’t require a city permit, but full firebox rebuilds can. We handle the scope assessment and tell you if anything needs city review before work starts. When in doubt, we check before we touch anything.
We serve all of Walnut, including the hillside tracts off Amar Road, the Lemon Avenue corridor, and the older ranch neighborhoods near Valley Boulevard. All three ZIP codes, 91788, 91789, and 91795, are in our regular service area.
If your fireplace hasn’t been opened in years, or your dryer vent is backing up, call us at (833) 805-3229 for a free estimate. Ashwood Chimney Sweep has served Walnut since 2012, and we’ll tell you straight what’s wrong and what it costs to fix.
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
"Good work. The written inspection report took about a week to arrive after I asked for it, which was slower than I expected."
— Nadia Hassan"Drop cloths everywhere, HEPA vac, and not a speck of soot on the carpet. I'd been dreading the mess for nothing."
— Lina Aziz"Cap keeps the birds out now, which after two springs of scratching noises is worth every penny."
— Alejandro Garcia