Masonry repair
Sweep & inspection
Caps & crowns
Flue relining
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 Repair Across Walnut Park
Chimney repair in Walnut Park runs $320 to $1,900 for most jobs, with flashing repair at the lower end and chimney rebuilding at the higher end. We work in Walnut Park weekly and know exactly what your 1920s bungalow or Spanish-style home is dealing with: brittle mortar, sealed-off flues, and tight lots where access matters. Call (562) 317-7262 for a written price before any work starts.
Most Walnut Park chimneys haven’t been the home’s heating source for decades. They’ve been covered over, converted, or simply ignored. That’s why our Chimney Repair team starts every job with a camera inspection, not a guess. We’re in Walnut Park regularly, and we know the difference between a chimney that needs a quick crown repair and one that’s hiding structural trouble behind drywall.
Key Takeaways:
- Most chimney repairs in Walnut Park cost between $320 and $1,900, with written pricing before work begins
- Flashing repair and crown repair are the two most common jobs we handle in Walnut Park’s older housing stock
- Every repair carries a written one-year guarantee under our 365-Day Done Right Promise
- Shared flues in attached duplexes create cross-ventilation risks that a standard sweep will not catch
- Live people answer the phone 24/7 at (562) 317-7262; no voicemail trees
Why Flint Chimney Co Long Beach Is Walnut Park’s Preferred Chimney Repair Company
Founded in 2002 as part of the Garrison Partners family of independently owned chimney service companies, we operate under the Garrison Standard: a written price before any tool comes off the truck, a documented scope of work, and a full-year guarantee on every repair. Walnut Park homeowners have told us what they’ve experienced elsewhere, no-shows, pricing that moves at the door, crews that leave mortar dust across the living room. That’s not how we work. Hank Delano leads our team with one rule: if it can’t be put in writing, we don’t do it.
Our technicians are background-checked and uniformed. When we dispatch to Walnut Park, you know who’s walking through your door and exactly what the job costs. Dispatch is coordinated from our Los Angeles office, and crews serve Walnut Park locally, so we’re typically able to get to your street within a few days of your call. We stock repair materials that match Walnut Park’s older chimneys, from HeatShield flue liners to Gelco crown sealant, so we’re not waiting on parts while rain finds its way through a failed flashing.
Styles & brands we work with





Chimney Flashing Repair in Walnut Park
Chimney Flashing Repair is one of the most common jobs we perform in Walnut Park, because the thin metal seal where the chimney meets the roofline takes a beating from Santa Ana wind-driven rain, even when the fireplace itself hasn’t burned a log in years. In Walnut Park, flashing repair typically runs $320 to $650 depending on how much of the old metal needs to be removed and whether the surrounding roof felt has rotted. When flashing fails, water tracks down the masonry and into the ceiling, showing up as brown stains on the wall nearest the chimney.
What the Repair Involves
We remove the old flashing, inspect the masonry underneath for spalling, and install new step and counter-flashing sealed with a professional-grade polymer sealant. If the chimney crown is also cracked, we’ll tell you and give you a separate written price before touching it. No scope creep, no surprise add-ons.
Signs Walnut Park Homeowners Should Watch For
Stains on the ceiling near the chimney, peeling paint on the wall adjacent to the fireplace, or visible rust on the flashing metal itself. On attached duplexes in Walnut Park, these signs sometimes show up in the neighbor’s unit first, depending on which side of the stack the flashing has failed on.
Chimney Crown Repair in Walnut Park
Chimney Crown Repair addresses the cement cap on top of the chimney, the part that keeps rain from soaking into the brick and mortar below. Walnut Park’s dry summers bake crown cement until it hairline-cracks, and when the region’s occasional winter rain arrives, water works into those cracks and accelerates spalling. Crown repair in Walnut Park typically runs $450 to $950, depending on whether we can patch with a Gelco sealant or need to tear off and re-pour the entire crown.
Why the Crown Cracks Even Without Wood Burning
A chimney crown doesn’t crack because you use the fireplace too much. It cracks because it sits in direct sun through Walnut Park’s long dry season, expanding and contracting every day. A cracked crown is the single most common entry point for water in chimneys we service from Long Beach to Walnut Park, and it’s also one of the easiest to fix when caught before bricks begin spalling.
What Happens If You Wait
Water enters the crown cracks, soaks into the top courses of brick, and the brick faces begin to pop off, a process called spalling. Those pieces fall into the flue and can block the damper. On a fireplace that’s only used occasionally, a blocked damper goes unnoticed for years, until a lit fire pushes smoke back into the house. Rebuilding a spalled chimney top runs $1,200 to $1,900 in Walnut Park, which is why we tell homeowners: if you see cracks on top of the chimney, call before the brick does the talking.
Trusted Brands We Service in Walnut Park
We install and service flue liners and components from HeatShield, Gelco, and Olympia Chimney, three manufacturers whose products are specified by chimney professionals, not by whatever’s cheapest at the supply yard. For Walnut Park’s older chimneys, HeatShield resurfacing is often the right call when the original clay flue liner has cracked; it seals the liner without a full rebuild. We keep common repair parts stocked for fast turnaround across Walnut Park, so you’re not waiting on a shipping delay while water keeps moving through the crown.
See the difference
Before
After
Before
After
Before
AfterCommon Chimney Repair Problems We See in Walnut Park Homes
- Sealed-off fireplaces hiding old ash dumps. When Walnut Park homes converted to central heating decades ago, many fireplaces were boarded over and the flues abandoned. We find old ash dumps and corroded dampers behind drywall, and opening them without cracking the vintage tile surround takes patience and care.
- Shared flues in attached duplexes. Some older Walnut Park duplexes have two units venting into one brick stack. If a water heater or furnace is venting into a compromised flue, carbon monoxide can push into the adjacent unit during a Santa Ana wind event. We check flue separation on every attached-home repair.
- Brittle mortar from dry summers. Walnut Park’s Mediterranean climate means long stretches of heat and low humidity. Mortar joints dry out, shrink, and crumble. Repointing, which replaces the outer mortar joints, typically runs $35 to $60 per square foot in this area.
- Failed flashing at the roofline. The transition point where the brick meets the roof is Walnut Park’s most vulnerable chimney joint. Wind-driven rain from the south pushes water under old flashing, and the damage shows up inside before it’s visible outside.
Pricing for Chimney Repair in Walnut Park, CA
Standard chimney sweep in Walnut Park: $140 to $220. Flashing repair: $320 to $650. Crown repair: $450 to $950. Repointing: $35 to $60 per square foot. Full chimney rebuild: $1,200 to $1,900 depending on how many courses are spalled. Those are real ranges we quote and honor. What moves the number is access (some Walnut Park rooftops require extra ladder staging), the condition of the original masonry, and whether a flue liner inspection turns up cracks that need a HeatShield seal. You’ll never get a call-back price after we start. Call (562) 317-7262 and we’ll give you a written estimate before any work begins.
Our crew was called to a 1930s Spanish-style bungalow on a tight street in Walnut Park where the homeowner noticed moisture staining on a shared wall with an attached duplex. Flashing around the original brick chimney had failed after decades of Santa Ana-driven rain, and the neighbor’s water heater was venting into the same stack. We replaced the flashing and installed a HeatShield flue liner to separate the flues, then repaired the spalling chimney crown before the next wind event. That’s the kind of job you only see on Walnut Park’s older attached homes, and it’s the reason we never skip the structural check when we’re up there.
In Walnut Park specifically, chimney repair prices run within about 10% of what you’d pay in Long Beach or Lakewood. The variable isn’t geography; it’s the age of the chimney and whether prior owners maintained it. Homes built in the 1920s and 1930s with original brick chimneys tend to need more masonry work than 1950s homes with clay-tile flues. Every repair we write includes a one-year written guarantee. If a covered repair fails within that year, we return at no charge, no argument.
We Also Serve Cities Near Walnut Park
If you’re in Long Beach, Lakewood, Wilmington, or Westminster, we work in those neighborhoods too. Many Walnut Park homeowners call us for a chimney inspection before listing a home, and we often end up working the whole street. Same written pricing, same one-year guarantee, same crew standard.
Serving Walnut Park, CA - Our Local Coverage Area
We’re based in the Walnut Park 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 Repair in Walnut Park
Tight lot spacing in Walnut Park means many chimneys sit close to the property line, sometimes within a few feet of the neighbor’s roof or wall. Roof access often requires setting ladders on narrow walkways or working from the adjoining unit’s side, with the neighbor’s consent. More importantly, attached duplexes can share a flue stack, which means a chimney problem in one unit is frequently a chimney problem in both. We check for flue separation issues on every attached-home job in Walnut Park. Call (562) 317-7262 and ask for a shared-flue inspection if you’re in an attached home.
If your Walnut Park fireplace was sealed off when central heating went in, do not open it up without a camera inspection. Many of these covered fireplaces hide old ash dumps, corroded dampers, and abandoned flues behind the drywall, and opening the wall without knowing what’s behind it can crack the vintage tile surround. We run a camera down the flue from the roof first, then open the wall carefully if an inspection is warranted. This is one of the most common jobs we do in Walnut Park, and it runs $180 to $300 for the inspection plus any wall-access work if you approve it.
Your chimney crown cracks in Walnut Park because of sun and temperature changes, not because of fire use. The cement crown sits in direct sunlight through Walnut Park’s long dry season and expands daily, then contracts overnight. After enough cycles, hairline cracks form, and winter rain enters those cracks and soaks the brick. If the fireplace is rarely used, you’ll never notice the damage until a ceiling stain appears or a chunk of brick falls. Crown repair runs $450 to $950 in Walnut Park. Call (562) 317-7262 for an exact written quote.
Yes, and it’s more common in Walnut Park than in newer tract-home neighborhoods. Some older attached duplexes in Walnut Park have one brick stack serving both units, originally built for wood-burning fireplaces. If a furnace or water heater was later vented into that same stack and the flue liner has cracked, carbon monoxide can push into your unit during strong drafts, including Santa Ana wind events. We’ve corrected this exact condition with HeatShield flue liners that separate adjacent flues. If you’re in an attached home and have never had the flue separation checked, call us at (562) 317-7262.
If you don’t burn wood in Walnut Park, you should still have your chimney inspected every two to three years, more often if you’re in an attached home with a shared stack. The issues we find, cracking crowns, failed flashing, spalling brick, cross-vented flues, have nothing to do with how often you use the fireplace. They’re driven by weather, age, and the original construction methods used in Walnut Park’s 1920s and 1930s housing stock. An inspection runs $180 to $300 and includes a written report with camera images. Call (562) 317-7262 to book one.
Written by Hank Delano, Owner at Flint Chimney Co Long Beach, serving Walnut Park with documented pricing and written guarantees since 2002.