Fast, Reliable Chimney Repair Across Shadow Hills
Chimney repair in Shadow Hills typically costs $350-$2,800 depending on whether you need mortar repointing, flashing work, or a partial rebuild, and our crew can usually inspect and quote same-day. We drive out to the foothill ranches and 1950s neighborhoods off Foothill Boulevard and Sunland Boulevard regularly, so we know the original brick chimneys here and what decades of Santa Ana winds have done to them. If your fireplace is smoking back into the room, your mortar is shedding sand, or your insurance is asking for spark-arrestor documentation, call us at (844) 418-0954. A live person answers, even at 10 p.m. on a Sunday.
Why Hearthstone Chimney Co. of Los Angeles Is Shadow Hills’s Preferred Chimney Repair Company
We’ve been serving the northeastern San Fernando Valley for over 42 years, and Shadow Hills has been on our route since the beginning. Our technicians know the difference between a 1958 ranch chimney on a half-acre lot near the equestrian trails and a 1972 split-level up against the chaparral slope. Both have original mortar that has cycled through thousands of hot-cold Santa Ana events.
Our customers in the 91040 ZIP code call us back because we document what we find. Every Level-2 camera inspection ends with photos you can see and a plain-English verdict. No jargon, no scare tactics. If the flue liner is cracked, we show you the crack. If the crown just needs repointing, we say so.
Most repairs in Shadow Hills are completed in a single visit. Our trucks carry professional-grade materials from HeatShield, Gelco, and Olympia Chimney, so we’re not ordering parts while your fireplace sits open. And our 90-Day Done Right Promise is in writing with no arguing. If it’s not right, we come back. Gil Mercer, our owner, put that policy in place in 1984, and it hasn’t changed.
Our Chimney Repair Services in Shadow Hills
Mortar Repointing
The original mortar joints on Shadow Hills’s 1950s-1970s ranch chimneys are often powdering out after sixty-plus years of thermal cycling. Santa Ana winds accelerate the damage by driving rain into hairline cracks, then pulling moisture back out fast. We grind out the failed mortar to proper depth and repoint with a high-temperature masonry mix matched to the original. A typical repointing job on a standard Shadow Hills ranch chimney runs $850-$1,400 and takes one day.
Spalling Brick Repair
When water freezes in porous brick faces, the surface spalls off in flakes. Shadow Hills’s chaparral-facing homes catch more driven rain than valley-floor properties, and morning frost in the foothills makes the freeze-thaw cycle real. We remove spalled brick, match replacement units for color and hardness, and seal with breathable waterproofing. Partial spalling repairs start around $650; extensive face rebuilding on a large chimney can reach $2,200.
Chimney Waterproofing
Water is what kills chimneys in Shadow Hills. The combination of occasional heavy winter rain and dry, porous 1960s brick means absorption and rapid evaporation that stresses the masonry. We apply vapor-permeable sealers that let the brick breathe while shedding liquid water. Waterproofing a typical Shadow Hills chimney costs $400-$750 and extends the life of repointing work by years.
Flashing Repair
Roof-to-chimney flashing on older Shadow Hills homes was often installed with generic step flashing or tar patches that crack in the heat. Santa Ana winds lift edges and drive rain straight uphill. We fabricate custom counterflashing and install proper saddle cricket where needed, sealed with high-temperature silicone. Flashing repair runs $550-$1,100 depending on roof pitch and accessibility.
Chimney Rebuilding
Some original Shadow Hills chimneys have deteriorated past the point where repointing is economical. When the firebox back wall is compromised, multiple courses are spalling through, or the structural integrity is gone, we rebuild. We salvage original brick where possible for aesthetic match, and we always install a UL-listed spark arrestor to meet LA VHFHSZ code. Partial rebuilds start at $1,800; full rebuilds on large equestrian-property chimneys can run $4,500-$7,500.
Tuckpointing
For chimneys where the mortar is sound but the aesthetic joint has weathered, tuckpointing restores the crisp, clean lines of original construction. It’s less invasive than full repointing and costs $500-$900 in Shadow Hills.
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.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Shadow Hills
We stock professional-grade materials from HeatShield, Gelco, and Olympia Chimney on every truck serving the 91040 area. That means no waiting on special orders for liner systems, crown coatings, or cap assemblies. When we inspect your chimney on a Tuesday morning, we can often complete the repair that same afternoon. We also work with Famco for specialty venting hardware when older Shadow Hills homes need custom solutions. No builder-grade substitutes. The materials we use are the same ones specified by manufacturers for their own warranty programs.
Common Chimney Repair Problems We See in Shadow Hills Homes
- Mortar joints and firebox liners crumbling from thermal cycling. The original 1950s-1970s ranch chimneys in Shadow Hills have been expanding and contracting through thousands of fires. Gaps open up. Santa Ana winds exploit those gaps, pushing smoke and occasionally embers into wall cavities or attics. We find this on roughly half the inspections we do off Foothill Boulevard.
- Cast-iron dampers seized or snapped from decades of disuse. Many Shadow Hills homeowners stopped using their fireplaces during the 1990s and 2000s, then started again when gas prices spiked. The damper hardware, sized to obsolete specifications, won’t open or won’t close. We replace with modern stainless dampers or top-sealing models that seal far better than original equipment.
- Missing or non-compliant spark arrestors. LA Fire Code in the VHFHSZ requires UL-listed spark arrestors on every chimney, yet many Shadow Hills homes were never retrofitted. Insurers are now asking for documentation. We install code-compliant arrestors as a standard add-on to repair visits, and we photograph the installation for your records.
- Chimney crowns cracked and sloped wrong. Original crowns on 1960s Shadow Hills chimneys were often poured flat or with inadequate overhang, so water pools and freezes. We rebuild with proper pitch and drip edges, or apply Gelco crown coat for smaller cracks.
Pricing for Chimney Repair in Shadow Hills, CA
Here is what chimney repair costs in the Shadow Hills market as of 2025. These are real ranges based on jobs we have completed in the 91040 ZIP code:
| Service | Typical Range in Shadow Hills |
|---|---|
| Mortar repointing (standard chimney) | $850 - $1,400 |
| Spalling brick repair (partial) | $650 - $2,200 |
| Chimney waterproofing | $400 - $750 |
| Flashing repair | $550 - $1,100 |
| Chimney rebuilding (partial) | $1,800 - $4,500 |
| Chimney rebuilding (full, large chimney) | $4,500 - $7,500 |
| Spark arrestor installation (UL-listed, VHFHSZ compliant) | $280 - $450 |
| Stainless steel liner (DuraFlex, standard install) | $2,200 - $3,800 |
| Damper replacement | $450 - $850 |
What moves the number: chimney height, roof accessibility, extent of masonry damage, and whether we discover hidden firebox deterioration during inspection. We give you the full price before we start. The number on the estimate is the number on the invoice. Estimates are free, and we carry a $50 discount on any repair over $250. Seniors and veterans receive a standing 5% discount.
We Also Serve Cities Near Shadow Hills
Our crews work the full northeastern Valley corridor. If you are in Shadow Hills, Sunland, Tujunga, La Crescenta-Montrose, or Burbank, we are likely already in your neighborhood this week. The same live-answer phone line and same 90-Day Done Right Promise apply. Call (844) 418-0954 and we’ll tell you when we’re next in your area.
Serving Shadow Hills, CA - Our Local Coverage Area
We’re based in the Shadow Hills 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 - Chimney Repair in Shadow Hills
Yes. Because Shadow Hills sits entirely within LA’s Very High Fire Hazard Severity Zone, the Fire Code requires a UL-listed spark arrestor on every chimney, and legitimate chimney sweeps will not clean a non-compliant chimney without documenting the deficiency. We install code-compliant arrestors as part of our standard repair and cleaning workflow, and we photograph the installation for your insurance records. Call (844) 418-0954 and we’ll inspect what you have and quote the upgrade.
Usually yes. Smoke backup from Santa Ana downdrafts is most often caused by a cracked flue liner, improper chimney height, or a missing cap that allows wind to pressurize the flue. We repaired a cracked clay flue liner on a 1960s ranch home on Foothill Boulevard where Santa Ana downdrafts were pushing smoke into the living room. Our crew installed a DuraFlex stainless liner and a UL-listed spark arrestor to meet LA VHFHSZ code, while repointing the original mortar crown. Total cost was under $3,500, and the chimney did not need rebuilding. Call for an inspection and we’ll tell you exactly what you’re facing.
Repointing is enough if the brick faces are sound and the structural courses are intact. We see this on about sixty percent of Shadow Hills chimneys we inspect. If the firebox back wall is bowed, multiple courses are spalling through, or the chimney leans, rebuild is the honest recommendation. Our Level-2 camera inspection shows you the difference. Estimates are free.
Yes. We document spark-arrestor condition with dated photos and a written compliance statement as part of every inspection and installation in Shadow Hills. If your current cap lacks the arrestor, we can install a UL-listed unit and provide the documentation your insurer needs, typically same-day. Call (844) 418-0954 to schedule.
We focus on chimney repair, not garage doors. For garage spring repair in Shadow Hills, you would need a dedicated garage door company. Our Chimney Repair team handles masonry, liners, caps, and flashing only. If your chimney needs attention while you’re sorting out the garage, we’re happy to inspect both and refer you to a garage specialist we trust.
Call Hearthstone Chimney Co. of Los Angeles for Shadow Hills Chimney Repair
Shadow Hills sits directly in a Santa Ana wind tunnel; during Red Flag events, a missing spark arrestor turns a fireplace into an ember launcher aimed at the chaparral upslope. That is not a theoretical risk here. It is why LA Fire Code is strict in the 91040 ZIP, why insurers are asking for documentation, and why we treat every chimney inspection as a life-safety check, not a formality.
We have been doing this for over 42 years. Gil Mercer built this company on the K.E.Y.S. code: Krafted right, Every time, Your home first, Standing behind it. The 90-Day Done Right Promise is in writing with no arguing. Calls are answered by a live person 24 hours a day, 7 days a week. Most repairs are done in one visit, with upfront pricing that does not change.
If your chimney is smoking, leaking, or overdue for honest inspection, call (844) 418-0954. We’ll give you a free estimate and a straight answer about what needs to happen.
Written by Gil Mercer, Owner at Hearthstone Chimney Co. of Los Angeles, serving Shadow Hills since 1984.