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.
HeatShield Chimney Cleaning in Temple City, CA | Walnut Chimney
We’re an independent chimney and vent crew serving Temple City — see our Chimney Sweep in Temple City — and we specialize in HeatShield ceramic flue liner inspection, cleaning, and repair. The thing that sets our HeatShield work apart here is that we see liners sealed behind 1990s gas-log conversions on a weekly basis, which means the real job is usually a camera inspection before anyone touches a brush. If your Temple City fireplace hasn’t been opened in decades, call (855) 341-3461 and we’ll tell you what’s actually inside the flue.

We know HeatShield’s poured-in ceramic coating because we’ve worked on hundreds of these liners across the San Gabriel Valley, from original 1990s installs to firebox resurfacing compounds. For more on our full HeatShield lineup, see HeatShield sales & service. We’re not a HeatShield-authorized dealer, and that’s deliberate: our recommendation comes from what the camera shows, not a product quota. Temple City is in our regular service rotation, so we know the housing stock and the flue conditions before we even knock.
Why Temple City Residents Choose Us for HeatShield Service
Most Temple City chimneys were built between the 1950s and 1970s, and the HeatShield liners inside them have been through the same cycle every year: long dry stretches, then winter rain. That pattern shows up as specific failure modes we’ve learned to spot quickly. Russ Dempsey, our owner, grew up in the San Gabriel Valley and spent his early years doing fireplace retrofits and cleanouts on the older ranch homes scattered through this area, including work with HeatShield in East San Gabriel. He’s the one who taught our crew that a capped flue in Temple City behaves differently than one in a wetter coastal town, because trapped moisture has nowhere to go.
We spec manufacturer-equivalent cast liner and crown materials matched to the original flue dimensions, not whatever’s on the truck. That matters on Temple City’s original clay tile flues, where a HeatShield coating only bonds if the substrate is sized and prepped correctly. We also carry the parts and compounds needed for most HeatShield repairs locally, so we’re not waiting on a distributor when your firebox needs resurfacing before the next cold evening.
Styles & brands we work with





Common HeatShield Chimney Cleaning Problems We Solve in Temple City
- Delamination from trapped moisture in capped flues. When a Temple City fireplace was sealed during a 1990s remodel and the flue capped, any residual moisture lingers against the HeatShield coating. Through the dry-season-to-rain swing, that coating blisters and separates from the clay tile behind it. We strip the failed layer, inspect the substrate, and recoat only if the tile is sound.
- Peeling caused by coating over glazed creosote. Temple City homeowners who burn only on winter evenings often build up a hard, glazed creosote layer that never gets hot enough to burn off. If a previous installer sprayed HeatShield compound over that glaze, the bond fails within the first heating season. We remove the creosote first, then evaluate the liner.
- Cracked or spalled HeatShield at the smoke chamber and damper frame. On Temple City ranch homes that went decades without an inspection, the ceramic coating often fails right at the damper assembly and smoke chamber shelf. This only shows up when a remodel uncaps a flue sealed since the 1990s, or when a homeowner tries to reopen a fireplace after switching back from gas logs.
- Crown and cap failures letting water track behind the liner. Temple City’s original masonry chimneys have short stacks by design. When the crown cracks or the cap goes missing, water runs down the flue and works behind the HeatShield coating near the top, softening it. We repair the crown, replace the cap, and assess whether the liner needs partial or full recoating.
- Bird and debris blockage discovered only after uncapping. A capped flue in Temple City is often a decade-old bird nest waiting to be found. Before any sweep, we run a Level 2 camera to see what’s actually obstructing the flue, then remove the nest and check whether the HeatShield surface is still intact underneath.
HeatShield Service in Temple City: What Local Conditions Mean for Your Equipment
Here’s the information most generic chimney pages won’t give you about Temple City. A large share of homes in the 91780 ZIP had their fireplaces converted to gas logs or sealed entirely during the 1990s kitchen-remodel wave. That means the flues we open here are frequently capped and uninspected for 25-plus years. The chimney was never cleaned or even looked at after the conversion because the homeowners switched to central heat and only now, decades later, are thinking about burning wood again or selling the house. What we find on these calls off Las Tunas Drive and near Temple City Park is a HeatShield liner that has blistered, separated, or spalled behind years of trapped moisture, with the original clay tile underneath often still intact. That’s why a Level 2 camera inspection is the real first step on most Temple City jobs, not a sweep. A brush through an unseen delaminated liner makes things worse, not better.
On a ranch home off Las Tunas Drive near Temple City Park, we opened a firebox that had been sealed behind a gas-log set since a 1990s remodel. Inside was an original flue capped at the top with a HeatShield-style cast liner that had blistered and separated beneath years of trapped moisture. Our tech ran a Level 2 camera, stripped the failed coating, cleared a bird nest from the flue, and after confirming the clay tile behind it was intact, recoated the smoke chamber and installed a multi-flue cap so the dormant chimney could finally breathe. That’s a typical Temple City job for us, and it starts with looking before touching.
HeatShield Models & Products We Service in Temple City
We work on the full range of HeatShield products found in Temple City homes. That includes the original cast-in-place ceramic flue liner poured during the 1990s, the firebox and smoke-chamber resurfacing compound, the crown repair and coating system, and HeatShield-style liner retrofits applied over original 1950s clay tile in ranch-home fireplaces. For each, we use manufacturer-equivalent materials matched to the flue dimensions rather than generic substitutes. We also keep common HeatShield repair compounds and cap components stocked for faster Temple City turnaround, because we know homeowners here don’t want a fireplace out of commission through the winter burning season.
See the difference
Before
After
Before
After
Before
AfterHeatShield Service Pricing in Temple City
What you’ll pay for HeatShield chimney work in Temple City depends on what the camera finds. A Level 2 inspection with a written report typically costs less than a full reline, and it’s the step that tells us whether recoating is even worth doing. Creosote removal on a moderately used Temple City fireplace runs at standard sweep rates, while stripping failed HeatShield coating and resurfacing a smoke chamber costs more because of the labor and material involved. Crown repair and cap replacement fall in the middle of that range. The price you’re quoted is the price on the work order, flat, before we start. Every estimate starts with the inspection, and every inspection includes a photo report you can see. Call (855) 341-3461 for an exact quote on your Temple City chimney, or ask about HeatShield service in Rosemead if you’re nearby — estimates are free.

Serving Temple City, CA — Our Local Coverage Area
We’re based in the Temple City area and know this community well, including nearby areas like North El Monte HeatShield service. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – HeatShield Chimney Cleaning in Temple City
Yes, but we clean it differently than a standard sweep. A sealed-off Temple City flue typically needs a Level 2 camera inspection first to see what’s behind the cap, whether that’s a bird nest, a delaminated HeatShield liner, or cracked clay tile. We’ll show you the footage before we recommend any cleaning or recoating. Call (855) 341-3461 to schedule an inspection.
Often yes, but only if the clay tile behind it is structurally sound and the flue dimensions haven’t shifted. We see plenty of Temple City ranch homes where the original tile is intact but the old HeatShield coating has failed. We strip the loose material, prep the surface, and recoat only when the substrate will hold it. If it won’t, we’ll tell you a full reline makes more sense.
In Temple City, that first cold-night smoke usually means a flue obstruction, a failed damper seal, or a HeatShield liner that has spalled and narrowed the flue opening. The long dry season lets debris settle, and the first fire pushes smoke against whatever’s blocking the passage. We inspect, identify the cause, and fix it before you’re dealing with a smoky living room all winter.
We do. Most HeatShield liners in Temple City were installed by other companies years ago, and we service them regardless of who did the original work. We’re an independent crew, not a HeatShield-authorized dealer, so our recommendation on whether to recoat, patch, or replace comes from the camera inspection, not from a sales target.
Yes. We handle fireplace conversions in Temple City regularly, including removing old gas-log sets, uncapping flues, inspecting the HeatShield liner, and bringing the firebox and smoke chamber back to safe working condition. The process starts with a Level 2 inspection so we know exactly what we’re reopening. Call (855) 341-3461 for a free estimate on your conversion.
Service Areas Near Temple City
We serve all of Temple City and the surrounding San Gabriel Valley communities. For homeowners just west of Temple City, see HeatShield service in San Gabriel. Further east, we also cover HeatShield service in El Cerrito Corona. Our full coverage area includes Temple City service area along with nearby cities like Arcadia, Rosemead, and San Marino. If you’re within a short drive of the 91780 ZIP, we’ll make the trip.
Book Your HeatShield Service in Temple City Today
If your Temple City fireplace has been sealed for years, or you’re seeing signs of liner failure, the first step is a camera inspection. Russ Dempsey and our crew will show you exactly what’s in the flue and what it needs. Call (855) 341-3461 for a free estimate. If the flue’s clean and the draft is right, everything else takes care of itself.
Written by Russ Dempsey, Owner at Walnut Chimney, serving Temple City since 2003.