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.
Fast, Reliable Chimney Sweep Across Walnut
A chimney sweep in Walnut typically costs $189 – $329 for a standard fireplace cleaning with a Level 1 inspection, and most appointments are completed within 90 minutes. Walnut’s hillside tract homes, especially those off Snow Creek and around the Walnut Hills area, have prefab fireplaces that sit idle for seven or eight months a year, so the work here is usually about creosote glaze, bird nests in caps, and pre-burn safety checks rather than heavy soot removal. Our crews from Chestnut Chimney Sweep know the 91788, 91789, and 91795 zip codes well. Call (855) 360-4975 for a free estimate.
Why Chestnut Chimney Sweep Is Walnut’s Preferred Chimney Sweep Company
Walnut homeowners call us because we tell the truth about what a chimney needs, and we show camera proof before recommending anything. That matters in this city. A lot of the houses here were built in the 1980s and 1990s with factory chimney systems, and those systems age differently than old brick stacks. A generalist who only sees a “dirty chimney” might miss a clogged cap or second-degree creosote glazing. Our team is led by Roland Cifuentes, and the crews that roll out to Walnut carry pro-grade parts and camera gear on every truck.
Response time to Walnut from our Rialto base runs about 45 minutes under normal traffic on the 60 or the 10. We schedule in two-hour windows and call when we’re 20 minutes out. Customers near Mt. San Antonio College and the tracts around Snow Creek see us regularly for pre-winter sweeps and post-idle-season smoke complaints.
Styles & brands we work with





Fireplace Cleaning in Walnut
Fireplace Cleaning for Walnut’s prefab and gas-insert fireplaces usually runs $189 – $249 when paired with a standard sweep and inspection. Prefab units collect creosote just like masonry fireplaces, but the real trouble here is what gets into the cap during the long idle stretch: leaf litter, bird nests, sometimes bees. A clean cap and flue mean your first fire in November pulls correctly instead of pushing smoke into the living room.
What the Job Includes
We remove the glass or screen, lay drop cloths, run rotary brushes through the flue, vacuum out soot and creosote, and check the cap, spark arrestor, and damper. The fireplace box gets emptied and wiped down. You get a visual report on the spot.
When Walnut Homeowners Schedule
Late September through early November is the busy stretch, right before the first cold snap. But spring is actually a smart time to book. You avoid the rush, and any pest activity from the dormant months is easier to spot and correct before it hardens into a stubborn blockage.
Chimney Services in Walnut
Chimney Services for Walnut homes span from annual sweeping to Level 2 camera inspections and cap or spark arrestor replacement, generally $249 – $399 depending on system type and access. Two-story tract homes off Snow Creek often need a taller ladder setup, which is a routine part of our scope. If a fireplace smokes on the first cold night, the cause is usually a blocked cap or glazed creosote, not a structural failure.
Level 1 and Level 2 Inspections
A Level 1 is the standard check with every sweep. A Level 2 is a camera inspection through the full flue, and we recommend it after a chimney fire, before a home sale, or if you’ve bought a Walnut house and don’t know its chimney history. The camera footage is yours to watch, not something we hide behind a vague “you need repairs” statement.

Cap and Spark Arrestor Work
Walnut has real bird and rat pressure in hillside neighborhoods. Caps clog, spark arrestors bend, and sometimes the mortar at the crown lets water in. We stock common cap sizes on our trucks and can typically replace a damaged unit the same visit.

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.
Trusted Brands We Service in Walnut
We don’t install anonymous aftermarket parts. Walnut homeowners get work backed by names like HeatShield, Olympia Chimney, and Famco. HeatShield is the one that matters most for this area’s aging liners. It’s a restoration system that can add years to a deteriorating clay-tile flue without a full tear-out and rebuild. When a Walnut homeowner needs a replacement cap, we specify by brand and part number so you can look up exactly what went on your chimney. Roland Cifuentes keeps our trucks stocked for the systems common in 91788, 91789, and 91795, which means fewer return trips and faster completions.
See the difference
Before
After
Before
After
Before
AfterCommon Chimney Sweep Problems We See in Walnut Homes
- Creosote-glazed long-idle flues: Fireplaces that sit unused from March to October don’t accumulate heavy soot, they develop a hard, shiny creosote glaze. That glaze ignites at lower temperatures than fluffy soot and is harder to remove with standard brushing.
- Bird nests and leaf litter in caps: The hillside tracts near Snow Creek and Walnut Hills have mature trees and heavy bird activity. First-fire smoke-back is frequently a cap packed with nesting material.
- Prefab system misdiagnosis: We’ve followed behind other companies that told Walnut homeowners they needed a full relining when the actual issue was a clogged cap and minor creosote. A camera inspection would have shown it in five minutes.
- Water intrusion at the crown: Older clay-tile flues and masonry veneer on 1980s builds crack over time. Santa Ana wind-driven rain finds those cracks, and a deteriorating crown lets water soak down into the system.
Pricing for Chimney Sweep in Walnut, CA
A standard sweep with Level 1 inspection in Walnut runs $189 – $249 for a single-story prefab fireplace. Two-story homes or systems with heavier creosote typically land at $279 – $329. A Level 2 camera inspection adds $99 – $149 when bundled with a sweep. Cap replacement is usually $129 – $189 depending on size. HeatShield restoration is priced by linear foot after the camera inspection confirms it’s appropriate, and we show you the footage before any quote is final. Call (855) 360-4975 and describe your fireplace. We’ll give you a flat number over the phone, not a range that drifts on invoice day.
We Also Serve Cities Near Walnut
Our Chimney Sweep crews cover Walnut and the surrounding San Gabriel Valley communities including South San Jose Hills, Rowland Heights, West Covina, and Pomona. If you’re in one of those cities and your fireplace is smoking on the first cold night, we can usually reach you within the same week. See our Walnut page for neighborhood-specific details.
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 Sweep in Walnut
A bird nest or leaf litter clogging the cap is the most common cause in Walnut, followed by glazed creosote that blocks draft until the flue warms up. We recently serviced a two-story home off Snow Creek with exactly this complaint. Our tech ran a Level 2 camera inspection and found a bird nest and leaf litter sealing the cap, plus second-degree creosote glazing the prefab flue liner. We removed the debris, swept the flue, and showed the homeowner before-and-after footage on our monitor. No upsell, just evidence. Call (855) 360-4975 if your first fire is pushing smoke back.
Yes, and in Walnut the reason is less about soot volume and more about what moves into your chimney while it sits idle. Birds, rats, bees, leaf litter, and spider nests accumulate in caps during the long dormant months, and a quick annual check catches those before your first fire. A Level 1 inspection with a sweep costs $189 – $249. That’s cheap insurance against a chimney fire caused by glazed creosote you can’t see from the hearth. Call (855) 360-4975 to book a pre-season check.
First-degree creosote is a soft, flaky soot that brushes off easily. Third-degree is a hard, tar-like glaze that requires chemical treatment or rotary removal and is far more likely to ignite. Walnut’s long idle season tends to produce second-degree creosote, which is a harder, shiny deposit that clings to prefab flue liners. If a sweep quotes you a deep-cleaning fee, ask to see the camera footage first. A real specialist shows you the deposit before charging you to remove it. Call (855) 360-4975 and we’ll run the camera before any recommendation is made.
Yes. Prefab and factory-built fireplaces are actually the most common system type in Walnut’s 1980s-90s tract homes, and they sweep differently than masonry chimneys. The flue liners are smaller, often round or oval, and they require brushes sized to the manufacturer’s specs. We stock brushes for the prefab systems common in 91788, 91789, and 91795. A standard prefab sweep with Level 1 inspection runs $189 – $249. If it’s been years since the last sweep, we’ll recommend a Level 2 camera inspection for an extra layer of confirmation.
A 60-to-90-minute appointment that includes drop cloths, rotary brushing, soot vacuuming, cap and damper checks, and a visual report before we leave. We show you what we removed and flag anything that needs watching. No recommendations are made without camera evidence you can see on our monitor. If you’re in Walnut off the 60 corridor, expect a call from us about 20 minutes before arrival. Book by calling (855) 360-4975. Estimates are always free.
Get your Walnut chimney inspected before the first cold night. Call Chestnut Chimney Sweep at (855) 360-4975 for a free estimate and straight answers.
Written by Roland Cifuentes, Owner at Chestnut Chimney Sweep, serving Walnut and the San Gabriel Valley.