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 Dryer Vent Cleaning Across Downey
Dryer vent cleaning in Downey typically runs $149 – $289 depending on duct length, roof versus wall termination, and how long it’s been since the last cleaning. Most homes here need the service every 12 – 18 months, though Downey’s Santa Ana wind season can shorten that interval when wall caps get packed with debris. Our techs know the 90240, 90241, 90242, and 90239 blocks well: the flat and low-pitch roofs, the exterior-wall venting, the older ranch stock where dryer ducts and dormant chimney chases often share the same penetration. Call (855) 341-3461 and we’ll get you on the schedule while you’re thinking about it.

Why Walnut Chimney Is Downey’s Preferred Dryer Vent Cleaning Company
Downey homeowners call us because we treat Dryer Vent Cleaning as a core safety service, not an add-on. The same tech who cleans your dryer duct knows how to inspect a chimney chase, a firebox, and a roof cap. That matters in Downey more than most places. So many of the post-war ranches here have both a dryer vent and a dormant fireplace flue terminating under the same low-pitch roof. We look at both while we’re already on the roof.
Russ Dempsey runs the crew, and he’s built the company around one idea: a homeowner shouldn’t have to call three separate contractors to cover chimney sweeping, dryer vent cleaning, and chimney repair. We handle all three under one roof. For Downey that means less scheduling, one point of contact, and a technician who actually understands how the venting systems in a 1950s ranch house interact.
We carry professional-grade materials on the truck: Copperfield caps, Famco components, Olympia Chimney venting. When a Downey wall cap has rusted through after ten years of Santa Ana winds, we don’t tape it and promise to come back. We replace it with the right part the same visit. That’s the difference between a company built for this trade and a guy with a shop vac.
Styles & brands we work with





Our Dryer Vent Cleaning Services in Downey
Dryer Vent Cleaning
We run a rotary brush and high-CFM vacuum through the full duct run, from the dryer connection to the exterior termination. In Downey’s older 90240 and 90241 homes, those runs are often long, sagging, and uninsulated, which means lint collects at every low point. We clean the full length, not just the first six feet. A typical single-story ranch duct in Downey takes 45 – 60 minutes to clean properly.

Dryer Vent Cap and Screen Replacement
Downey wall caps fail in a specific way: the screen rusts through, birds and squirrels get in, and then a Santa Ana wind event packs the duct with leaves and lint. We see it constantly on the original exterior-wall venting that’s been on these houses since the 1960s. We replace rusted or missing caps with Copperfield or Famco units sized to the existing duct, and we confirm the flap still seals against backdraft.

Dryer Duct Inspection Alongside Chimney Level 1 Inspection
This is the service most Downey homeowners didn’t know they needed. Because so many fireplaces here have been converted to gas logs, the flue goes dormant and the homeowner stops thinking about it. Meanwhile, the dryer duct and the chimney chase are often six feet apart on the same roof plane. We inspect both while we’re up there. You get a clear answer on what’s actually at risk, with photos, not a vague warning.

Chimney Sweeping for Downey’s Masonry and Factory-Built Fireplaces
Downey’s housing stock runs from original 1940s masonry fireplaces with clay tile flues to newer factory-built units in 90242 tract builds. The masonry ones hold creosote from decades of wood burning before the gas-log conversion. The factory-built ones have their own issues: rusted chase tops, warped caps, and gaps in the prefab sections. We clean and inspect both types. Knowing the difference is the point.

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 Downey
We stock and service components from Copperfield, Famco, and Olympia Chimney, all three of which matter for Downey’s specific venting failures. Copperfield caps hold up to the residential abuse of direct sun and Santa Ana grit. Famco makes the wall-cap and damper assemblies that replace the original rusted units on 1960s ranch exteriors. Olympia Chimney covers the prefabricated chase-top and cap configurations we see on newer 90242 homes and on converted gas-log fireplaces throughout Downey. Having the right brand on the truck means the fix happens the same visit, not after a parts order and a second trip charge.

See the difference
Before
After
Before
After
Before
AfterCommon Dryer Vent Cleaning Problems We See in Downey Homes
- Rusted-out wall caps on 1960s ranch exteriors. The original screen corrodes to nothing, and the first strong Santa Ana event packs the open duct with leaves, lint, and squirrel nesting. The dryer just gets “slow,” so the homeowner assumes the dryer is dying when the vent is actually the problem.
- Long, sagging exterior-wall venting in 90240 and 90241. These runs were built when dryers were shorter and ducts were an afterthought. Lint settles at every low point, especially where the duct runs through an uninsulated chase. By the time the dryer takes two cycles, the duct is usually at least 40% blocked.
- Dormant fireplace chases sitting beside active dryer vents. The homeowner converted the fireplace to gas logs and stopped looking up the flue entirely. The dryer duct and the chimney chase share the same roof penetration and cap condition. One or both is usually compromised, and nobody notices until something smells hot.
- Bird and squirrel nesting in both systems. Downey’s mature street trees and older housing stock make this a recurring issue. We routinely pull active nests from dryer vents and from flues that haven’t been burned in years. The fireplaces look fine from the living room; the caps tell a different story.
Pricing for Dryer Vent Cleaning in Downey, CA
A standard dryer vent cleaning for a single-story Downey home runs $149 – $229. If the duct run is longer than typical, or if you’re in a 90242 two-story tract build with a roof termination, expect $199 – $289. Wall cap replacement adds $45 – $95 depending on the cap type and brand. If we’re already on the roof and you want a Level 1 chimney inspection added, that’s $89 – $129. We give you the exact number before we start, not after. Call (855) 341-3461 for a free estimate based on your specific house and vent configuration.
We Also Serve Cities Near Downey
Walnut Chimney runs routes through Bell Gardens, Santa Fe Springs, Paramount, and Pico Rivera weekly. If you’re in one of those cities and have been waiting on a dryer vent cleaning or chimney inspection, we can usually add you to an existing Downey route day and save you the dispatch headache. Same crew, same equipment, same standard.
Serving Downey, CA — Our Local Coverage Area
We’re based in the Downey 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 – Dryer Vent Cleaning in Downey
Yes. Newer 90242 tract homes with prefabricated fireplaces still have roof penetrations, chase tops, and wall caps that fail on the same timeline as the dryer vent system. Rusted chase tops let water into the prefab structure, and an open wall cap lets lint and birds into the dryer duct. Since both systems terminate under the same low-pitch roof, inspecting them together costs less than scheduling two separate visits. Call (855) 341-3461 to combine a dryer vent cleaning with a factory-built fireplace inspection.
Nine times out of ten in Downey, it’s the vent. A dryer with a clear duct should dry a standard load in one cycle. When the run is long, sags in the middle, or terminates through a rusted wall cap, lint builds at every bend and the dryer has to work against its own exhaust. We clean the full duct run and test airflow at the exterior termination. If the dryer still underperforms after that, the problem is the machine, not the vent. Most Downey homeowners who call us for this get the answer they were hoping for: the vent was blocked, and the dryer is fine. Call (855) 341-3461 and we’ll tell you which one it is.
Yes, and this is one of the most overlooked safety issues in Downey’s 1940s – 1960s housing stock. A fireplace converted to gas logs still vents combustion gases through the original flue. If that flue has bird nesting, a rusted-out cap, or cracked clay tile, carbon monoxide can back up into the living space. The fact that the firebox is clean doesn’t mean the flue is clear. Since we’re already on the roof cleaning the dryer vent, adding a flue inspection takes 20 minutes and gives you a definitive answer. It’s the smartest way to cover two vertical paths in one house.
Because your wall cap screen has failed. Downey’s Santa Ana events blow leaves, dust, and debris horizontally at roof level with enough force to pack an open duct in a single afternoon. If the cap screen is rusted through or missing, there’s nothing stopping that debris from entering the duct. We replace the cap with a Copperfield or Famco unit sized to your duct, and the problem stops recurring. Until the cap is replaced, cleaning the duct alone is a temporary fix. Call (855) 341-3461 and ask us to bring a replacement cap for your specific exterior vent size.
Never. Building code requires dryer exhaust to terminate independently, and routing a dryer duct through a chimney chase is both a fire hazard and a code violation. What we do see, though, is the dryer duct and the fireplace chase running parallel under the same roof plane, sharing the same cap condition and exposure. That’s why we inspect both at the same time. If a previous contractor did route a dryer vent through a chase, we’ll tell you plainly that it needs to be corrected, and we can do the correction while we’re on site.
Call (855) 341-3461 for a free estimate on dryer vent cleaning in Downey. We cover all of 90239, 90240, 90241, and 90242, and we usually have a route day in Downey within the week.
Written by Russ Dempsey, Owner at Walnut Chimney, serving Downey and southeast LA County.