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
Chimney sweeping in Walnut runs $169 to $289 for a standard open fireplace, with the final number set by flue condition and creosote level. Most Walnut homes we visit were built between the late 1960s and 1990s, which means the fireplaces are original to the development and often have not been professionally swept in years. Because so many of these chimneys sit under concrete tile roofs, early damage stays hidden until smoke backs up during the first strong Santa Ana wind of the season. We know those hillside tracts near the 60 Freeway well, and we schedule inspections around them every fall. If you need a chimney sweep in Walnut, call (833) 362-8107. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Why Walnut Homeowners Call Chimney Sweep Montebello for Chimney Sweep
Walnut’s housing stock is not like the older bungalow neighborhoods to the west. Most of Walnut was built as planned subdivisions between the late 1960s and 1990s, with Mediterranean and Spanish Revival two-story homes that have stucco exteriors and concrete tile roofs. Those homes have fireplaces that have been burning mesquite and manufactured logs for three or four decades, and the creosote that builds up in them bakes hard during the long hot summers. We started in this trade in Montebello in 2015, and the calls we get from Walnut tend to involve flues that have never been touched since the house was new. Homeowners tell us the same thing: the fireplace worked fine for years, then one windy night the living room filled with smoke.
Our approach in Walnut starts with a camera inspection before we quote any repair. We do not sell a liner or a masonry fix without showing you the footage. That has earned us a strong local reputation among Walnut homeowners who have been burned by companies that recommend thousands of dollars in work without evidence. We show you what we see, explain what it means, and let the written estimate speak for itself.
Styles & brands we work with
- Sweep & inspection
- Caps & crowns
- Flue relining
- Masonry repair
- Gas fireplace service
Chimney Services in Walnut
Chimney services in Walnut typically start with a Level 1 or Level 2 inspection, depending on whether anything has changed since the last sweep. A Level 1 runs $149 to $249 and covers the accessible portions of the flue when the system is being used as before. A Level 2 costs $249 to $449 and includes camera work, which we recommend for any Walnut home where the chimney has not been swept in several years, the house is changing hands, or a Santa Ana wind event caused smoke backup. The inspection tells us what kind of creosote we are dealing with and whether the flue tiles are still intact.
From there, a standard sweeping with creosote and soot removal runs $169 to $289. Fireplace cleaning, including the firebox and damper area, is part of that work. If the flue has third-degree creosote, a brush alone will not get it out, and that is when we discuss HeatShield resurfacing or a liner with you after showing you the camera footage. Call (833) 362-8107 for a free estimate. We answer 24/7.
- Level 1 Inspection: $149 – $249 when nothing has changed and we are doing a routine sweep.
- Level 2 Inspection with camera: $249 – $449 for older Walnut chimneys, real estate transactions, or after wind-season smoke issues.
- Creosote and soot removal: $169 – $289 for a standard open fireplace sweep.
- Annual sweep with fireplace cleaning: $189 – $289 depending on flue length and buildup.
Inspection Before Anything Else
Most Walnut chimneys are original to the home. That means clay tile liners that have been heating and cooling for 30 to 50 years. A camera inspection shows us if those tiles are cracked, if mortar joints have opened up, or if a bird has built a nest above the damper. We do not recommend work without that evidence.

Creosote Removal That Actually Works
Third-degree creosote looks like tar and sticks to the flue walls. Brushes skip over it. In Walnut, where fireplaces sit idle for most of the year and then get heavy use during holiday months and Santa Ana events, that creosote gets baked on. We use rotary tools and chemical treatments when the camera shows that condition, not a basic brush pass.

Chimney Sweep Certified in Walnut
Chimney sweep certified work in Walnut means the technician knows what an original 1970s or 1980s fireplace looks like inside, and what it needs before it is safe to burn. The certification matters because these flues are aging at the same time. A chimney that was fine in 1995 is not automatically fine now. We are licensed and insured, and our team works with the same professional-grade product lines that masonry engineers specify: DuraFlex, HeatShield, Gelco, Olympia Chimney, Famco, and Copperfield. That is contractor-tier material, not what you would find in a big-box store aisle.
When we sweep a Walnut chimney, we are also checking the spark arrestor, the cap, the crown, and the damper. Most homeowners only see smoke and fire; we look at what is happening behind the tile.
What a Walnut Sweep Actually Covers
A proper sweep removes creosote and soot from the flue, smoke chamber, damper, and firebox. We also note any missing caps or cracked crowns, since Walnut’s uncapped flues attract squirrels and birds during the long off-season. You get a written report and, when needed, photo documentation.
Camera Evidence Before Any Repair Quote
This is the part that separates our way of working from the upsell crews. If we see a crack, you see it too. If the creosote is third-degree, you watch the footage with us. Nothing gets recommended on faith.
Trusted Brands We Service in Walnut
Walnut homeowners often ask whether the products we install are the real thing. They are. We work with DuraFlex flexible liner systems, which handle offset flues in older two-story builds without demolition. We install HeatShield for flue resurfacing when the clay tiles are cracked but the structure is still sound. And for components like caps and dampers, we stock Copperfield and Olympia Chimney parts that fit Walnut’s original fireplace designs. Our van carries common parts for Walnut jobs, which means fewer trips back to the supplier and a faster turnaround on repairs. If your chimney needs a liner or a resurfacing treatment, we can usually get it done without tearing through your tile roof or stucco.
See the difference
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After
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After
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AfterCommon Chimney Sweep Problems We See in Walnut Homes
- First Santa Ana downdraft exposes cracked flue tiles: Tile roofs hide flue damage until wind pushes smoke back into the living room. We schedule inspections in Walnut’s hillside tracts near the 60 Freeway before wind season peaks.
- Third-degree creosote from holiday and wind-season burning: Long idle stretches let creosote harden, and a brush alone will not remove it. A camera inspection tells us if you need rotary cleaning or a HeatShield application.
- Birds and squirrels in uncapped flues: Walnut’s warm off-season sends animals into chimneys. Missing caps and spark arrestors are the entry point, and nests obstruct the flue.
- Cracked mortar crowns on 30-to-50-year-old chimneys: Original crowns break down with age and heat, letting water in. We spot this on the roof during a sweep and show you a photo before recommending a fix.
Pricing for Chimney Sweep in Walnut, CA
A standard chimney sweep in Walnut typically runs $169 to $289. If you add a Level 2 camera inspection, expect $249 to $449 depending on flue height and roof access. Homes in the hillside subdivisions near the 60 Freeway sometimes carry a slight premium because ladder work on tile roofs takes more time and care. If the flue needs a HeatShield liner or a DuraFlex reline, that is quoted separately after you see the camera footage, and the price is set by the written estimate. Every estimate is free. Call (833) 362-8107 and we will walk you through what your chimney actually needs.
We Also Serve Cities Near Walnut
Our chimney sweep team covers Walnut and the surrounding communities, including Valinda, Azusa, West Puente Valley, and South El Monte. If you are just over the city line, we still come out. Call (833) 362-8107 and tell us which neighborhood you are in.
Serving Walnut, CA – Our Local Coverage Area
We serve Walnut and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs About Chimney Sweep in Walnut
A camera inspection is the only reliable way to see cracked clay tiles, open mortar joints, or animal nests inside an original flue from the 1970s, 1980s, or 1990s. In Walnut, where most chimneys have never been swept, we do a camera pass before any repair is quoted so you can see the condition yourself. Call (833) 362-8107 and we will set up a Level 2 inspection for your Walnut home.
It is common, especially in fireplaces that burn only during the holidays and Santa Ana wind events. Walnut’s hot, dry summers bake the creosote until it glazes onto the flue walls. A standard brush cannot remove it. We diagnose it with a camera and use rotary cleaning or a HeatShield treatment when needed. Call (833) 362-8107 for a free estimate.
Do not light a fire until the nest is removed and the flue is checked. Nests block the draft and can push smoke and carbon monoxide back into the house. We remove the obstruction, sweep the flue, and install a proper cap and spark arrestor so it does not happen again. Call (833) 362-8107 and we will schedule a time to look at it.
Yes. Concrete and clay tile roofs hide water entry at the chimney base and cracked crowns longer than asphalt shingle roofs would. By the time you see a ceiling stain, the damage has been happening for a while. When we sweep, we inspect the crown and flashing from the roof and show you photos. Call (833) 362-8107 and we will take a look.
Our technicians are licensed and insured, and they work with DuraFlex, HeatShield, Gelco, Olympia Chimney, Famco, and Copperfield products on Walnut jobs every week. These are contractor-grade lines, not hardware-store substitutes. When we install a liner or resurfacing system, it is done to the manufacturer’s specification. Call (833) 362-8107 for a free quote.
Call Chimney Sweep Montebello at (833) 362-8107 for a free estimate on chimney sweeping in Walnut. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday. Closed Saturday.
Written by Frank Medrano, Owner at Chimney Sweep Montebello, serving Walnut since 2015.