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 two things: restoring a prefabricated metal fireplace from the 1980s or 1990s, or fixing the stucco-adjacent flashing and caps on those same tract homes. Most Walnut chimneys were built as decorative features, not primary heat sources, so the problems we see are less about heavy creosote and more about rusted caps, compromised flashing, and liner deterioration from years of disuse and Santa Ana wind exposure. If your Walnut chimney needs work, call Glendale Chimney Sweep at (833) 467-6493 for a straight diagnosis.
Why Walnut Homes Are Different
Walnut’s housing stock is predominantly developer-built tract homes from the 1980s and 1990s, especially in the neighborhoods around Valley Boulevard and Lemon Avenue. These homes came with prefabricated metal fireplaces rather than traditional masonry chimneys, and that changes the nature of the work. Factory-built units have specific clearances, manufacturer labels, and cap requirements that differ from a brick-and-mortar chimney. When we clean or repair a Walnut fireplace, we check the manufacturer’s data plate first, because the venting clearances on a Heatilator or Superior unit are not the same as a custom-built masonry firebox.
The second thing that sets Walnut apart is the HOA reality. Many of the planned communities in the 91788 and 91789 ZIP codes have architectural review committees that require chimney caps, shrouds, and exterior flue components to match original builder specifications. A routine cleaning can surface a missing or rusted cap, and suddenly the homeowner is facing a compliance notice from their HOA. We’re used to working with those specifications. When we install a replacement cap or chase cover, we note the finish and color so it doesn’t stand out against the original roofline. In the 91795 area and the hillside streets near Snow Creek, wind exposure from Santa Ana events also means spark arrestors should be in good shape before ember season peaks.
Styles & brands we work with





Our Main Walnut Services
Walnut homeowners call us for two jobs more than anything else: their fireplace and their dryer vent. Here’s what each involves locally.
Chimney Sweep in Walnut
For most Walnut homes, a chimney sweep is an annual safety inspection with a creosote removal pass, not a heavy soot excavation. Fireplaces here see light seasonal use, maybe a handful of nights between Thanksgiving and February, so buildup is slow and glazing is rare. The real purpose is confirming the flue is clear of wind-blown debris, the damper operates, and the cap is intact. On prefabricated units, we also verify that the manufacturer’s specified clearances are still being met. Get the full picture on our Chimney Sweep in Walnut page.

Dryer Vent Cleaning in Walnut
Dryer vents in Walnut tract homes are often short, straight runs through an exterior wall, which helps airflow, but lint still compacts at the termination point and the dryer’s internal filter housing. Given how dry the air is here, a blocked vent can ignite faster than you’d think. We clean the full run from dryer to exterior flap, remove the compacted lint, and check that the flap closes tightly so wind-blown debris doesn’t work its way back in. More detail 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

Most chimney repairs in Walnut come down to age and exposure. The housing stock is 30 to 45 years old now, and the prefabricated metal chimneys installed in those tract homes are reaching the point where caps rust through, flashing separates at the roof line, and clay or factory liners show cracks. A dry climate slows creosote-related wear, but it does nothing to stop metal fatigue. We handle everything from cap installation to full liner work, and we carry professional-grade materials from brands like DuraFlex, Famco, and Copperfield so the repair matches the specific venting system rather than whatever generic part fits. For the full scope of what we do, see our Chimney Repair page.
Chimney Cap Installation
Signs you need it
Your existing cap is missing, rusted through, or was never installed, leaving the flue open to rain, birds, and wind-blown embers.
What it costs in Walnut
Chimney cap installation in Walnut typically runs $300 to $600 depending on flue size and whether the cap must match an HOA-specified finish.
How we do it
We confirm the flue dimensions, install a properly sized cap from Famco or Copperfield with a spark arrestor, and secure it so Santa Ana gusts won’t dislodge it.
Chimney Cap Replacement
Signs you need it
The old cap is rusted, canted, or no longer matches the builder’s original spec after years of sun and wind exposure.
What it costs in Walnut
Chimney cap replacement in Walnut typically ranges from $350 to $650, including removal of the old cap and a finish-matched replacement.
How we do it
We remove the corroded cap, inspect the flue top for secondary rust damage, and install a new cap that matches the original color and profile.
Chimney Flashing Repair
Signs you need it
You notice water staining on the ceiling near the chimney chase, or the metal flashing has pulled away from the stucco or shingles at the roof line.
What it costs in Walnut
Chimney flashing repair in Walnut typically costs $400 to $900, depending on how much of the surrounding roofing must be lifted to access the joint.
How we do it
We pull back the damaged flashing, inspect the underlying chase top, and install new step and counter-flashing sealed with professional-grade materials.
What Chimney Repair Costs in Walnut
| Item | Typical range in Walnut |
|---|---|
| Chimney cap installation | $300 – $600 |
| Chimney cap replacement | $350 – $650 |
| Chimney flashing repair | $400 – $900 |
Prices in Walnut move up when an HOA requires a custom finish or when the repair is on a steep roofline in the hills above Valley Boulevard. We give you a flat price before any work begins.
Do I need a new chimney liner or can it be repaired?
It depends on what the camera inspection shows. Minor cracking in a clay liner can often be resurfaced with a HeatShield application, while severe or offset damage may require a DuraFlex liner installation. We won’t recommend a full relining unless the video evidence is clear enough to show you.
Can HOA rules affect my chimney repair in Walnut?
Yes. Many Walnut HOAs require caps and exterior flue components to match original builder finishes. If your cap is rusted or missing, the association may flag it during an exterior inspection. We can spec a replacement that satisfies the architectural committee, usually within a week. Call (833) 467-6493 for details.
Brands We Service in Walnut
We stock and install parts from DuraFlex, Famco, Copperfield, and other professional chimney-industry brands, because the component spec matters on a factory-built fireplace. Most common cap and flashing parts are available for Walnut jobs within a few business days. See our brands for the full rundown.
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 | $300 – $600 |
| Chimney cap replacement | $350 – $650 |
| Chimney flashing repair | $400 – $900 |
| Chimney liner installation | $2,500 – $5,000 |
| Chimney crown repair | $350 – $700 |
| Chimney sweep (prefab fireplace) | $150 – $300 |
| Dryer vent cleaning | $100 – $200 |
The two things that push prices up in Walnut are HOA compliance finishes and access on multi-story rooflines. Whatever the job, you’ll get a fixed quote in writing before we start, and the number we agree on is the number you pay.
Neighborhoods We Serve in Walnut
We cover the full city of Walnut, from the planned communities off Grand Avenue to the hillside streets on the south side of town. Response time across the area is usually within one to two business days.
- Snow Creek
- Valley Boulevard corridor
- Lemon Avenue tract homes
- Timberline
- Walnut Hills
Service Area – Cities Near Walnut
Beyond Walnut, Glendale Chimney Sweep works throughout the San Gabriel Valley and nearby communities. Homeowners in South San Jose Hills, CA, Rowland Heights, CA, West Covina, CA, and Pomona, CA call us for the same brand-specific chimney and dryer vent work we do right here.
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 are scheduled within one to two business days. If you have an HOA deadline or a disclosure inspection before a sale, tell our office and we’ll prioritize it. Call (833) 467-6493 and we’ll find the first available slot.
Most cap, flashing, and liner repairs fall under routine maintenance and don’t require a city permit. If your repair involves structural masonry work, we’ll tell you upfront whether a permit is needed and who pulls it. Your HOA may have its own approval process regardless.
Yes. We serve the 91788, 91789, and 91795 ZIP codes, which covers the full city of Walnut and its surrounding unincorporated edges. If you’re near the border with another city, call us and we’ll confirm coverage.
If your chimney needs attention in Walnut, call Glendale Chimney Sweep at (833) 467-6493 for a free estimate. You’ll get a straight answer, a fixed price, and work backed by professional-grade materials.
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
"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."
— Tara Barrett"Drop cloths everywhere, HEPA vac, and not a speck of soot on the carpet. I'd been dreading the mess for nothing."
— Luis Ramirez"Creosote buildup was worse than I realized. He measured it, showed me the glazing on the flue with the camera, and was honest that we were closer to a chimney fire than I wanted to hear."
— Erin Doyle