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 Rowland Heights, CA | Walnut Chimney
Walnut Chimney provides independent HeatShield chimney cleaning and ceramic resurfacing across Rowland Heights, Walnut, and nearby communities. The work here carries a distinct pattern: aging clay tile flues in 1960s through 1980s tract homes that have sat unused for years, collecting everything from creosote to roof rat nests. We’re not a manufacturer rep and we don’t claim to be. What we are is a chimney company that’s pulled enough squirrels, rats, and cracked tile fragments out of Rowland Heights flues to know exactly when HeatShield’s ceramic formula is the right fix, and when a flue needs something more. Call (855) 341-3461 for an honest assessment.

Why Rowland Heights Residents Choose Us for HeatShield Service
Russ Dempsey, our owner, has been working flues in the San Gabriel Valley for going on two decades. He grew up off Amar Road in Walnut, trained in sheet metal and venting systems at Citrus College, and spent his early years doing fireplace retrofits and cleanouts on older ranch homes scattered through this exact area, including Hacienda Heights HeatShield service calls. By the time a Rowland Heights homeowner calls about a HeatShield chimney cleaning, we’ve likely seen a hundred flues just like theirs. We know what a 1970s clay tile liner looks like after thirty years of Santa Ana winds and the occasional decorative fire. We carry genuine HeatShield Cerfractory Flue Sealant and the application tools that go with it. We don’t swap in generic refractory cement because it’s cheaper. If the flue’s clean and the draft is right, everything else takes care of itself. But getting there in Rowland Heights usually means dealing with what’s living in the chimney first.
Styles & brands we work with





Common HeatShield Chimney Cleaning Problems We Solve in Rowland Heights
- Cracked and spalling clay tile joints. The tract homes built around Rowland Heights in the 1960s through the 1980s went up with masonry fireplaces and clay tile flues. Decades of minor seismic settling and long stretches of disuse leave those tile joints cracked and spalled. HeatShield’s ceramic resurfacing compound bridges those gaps, but only after the flue is properly swept and prepped.
- Animal nests packed into unscreened flues. Birds, squirrels, and roof rats find their way into chimneys on the hillside streets above Colima Road more often than anywhere else we work. A nest can dislodge tile fragments and completely obscure existing damage. We remove the nest before we even assess what HeatShield work is needed.
- Flaking or bubbling prior HeatShield applications. We’ve opened flues in Rowland Heights where someone applied a refractory coating over a dirty surface. It bubbles, it flakes, and it has to be stripped back before the real repair can happen. Surface prep matters more than the coating itself.
- Creosote buildup from occasional decorative fires. Rowland Heights doesn’t get cold enough for daily heating fires, but a few fires each winter still leave creosote. In a tile flue with cracked joints, that creosote seeps into the surrounding masonry where it shouldn’t be.
- Shifted flue tiles with open mortar joints. When tiles separate at the seams, HeatShield’s ceramic lining has to bridge and seal those gaps without hiding structural movement. We’ll tell you plainly if what we’re seeing is beyond what resurfacing can fix.
HeatShield Service in Rowland Heights: What Local Conditions Mean for Your Equipment
Here’s what we see in Rowland Heights that we don’t see at the same rate in neighboring flatland cities like South San Jose Hills. The hillside tracts off the higher elevations, the streets that climb above Colima Road and toward the open foothills, deal with constant roof rat and squirrel pressure during the long dry season. An unscreened chimney cap is an open invitation. The animals move in, build nests, and their droppings and nesting material sit against the flue tiles for months. That moisture and acidity accelerates tile deterioration. It also means our HeatShield jobs in Rowland Heights often start as animal-nest removals. We can’t assess tile cracks until the flue is clear. A homeowner on one of those hillside streets called us after hearing scratching in the chimney for weeks. We pulled out a large roof rat nest and found two cracked flue tiles in their 1970s masonry fireplace. We swept the flue, applied HeatShield Cerfractory to seal the cracks, and installed a stainless multi-flue cap to keep animals out. No more scratching, and the fireplace was safe for the first winter burn in years. That sequence, nest first, tiles second, cap last, is the Rowland Heights pattern.
HeatShield Models & Products We Service in Rowland Heights
We’re trained on the full HeatShield product family: the original Cerfractory Flue Sealant, the Hi-Temp Resurfacing Compound for severe spalling, HeatShield Premium for larger cracks and gaps, and the custom-formulated lining system for irregular flues. In Rowland Heights, the original Cerfractory formula handles most of what we find. The Hi-Temp compound comes out for flues where the tile faces have begun to crumble. We keep genuine HeatShield materials stocked for Rowland Heights turnaround. We also service chimneys that have already had HeatShield applied, whether by us or another company, and we’ll tell you honestly if a previous application was done right. We are an independent service provider, not a manufacturer-authorized agent, so our assessment isn’t tied to any warranty claim. It’s tied to what we see inside your flue. For broader HeatShield sales & service details, that page covers our full capability.
See the difference
Before
After
Before
After
Before
AfterHeatShield Service Pricing in Rowland Heights
HeatShield chimney cleaning in Rowland Heights varies based on what we find. A straight sweep with HeatShield inspection runs less than a full resurfacing job, and the difference comes down to flue condition. Cracked tiles that need Cerfractory cost more than a clean flue that only needs sweeping. Nest removal adds time. If multiple flue tiles are spalled or shifted, we’ll talk with you about whether HeatShield is appropriate or whether a stainless liner or rebuild is the honest path. A free estimate includes a camera inspection so you can see the flue condition yourself. We don’t recommend work you can’t verify. Call (855) 341-3461 and we’ll walk you through what we find.
Serving Rowland Heights, CA — Our Local Coverage Area
We’re based in the Rowland Heights area and know this community well, including Valinda HeatShield service requests. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – HeatShield Chimney Cleaning in Rowland Heights
HeatShield’s ceramic formula is applied to the interior of the flue after a thorough sweep, filling cracks and sealing spalled tile surfaces so creosote and moisture can’t reach the surrounding masonry. It’s not a structural repair. If the tiles have shifted significantly, we’ll recommend a different approach. Call (855) 341-3461 to schedule an inspection.
HeatShield can seal the cracked tiles that nesting activity accelerates, but only after we remove the nest and inspect the flue. The real prevention is a proper cap installation, which we do alongside HeatShield work when needed. In Rowland Heights, the two go hand in hand.
No. HeatShield’s ceramic lining is designed for masonry flue interiors, not for application over stainless steel liners. If you have a stainless liner with issues, we’ll inspect it and recommend the correct repair path, which may mean liner repair or replacement rather than resurfacing.
If we find cracked tile joints or minor spalling but the surrounding masonry is still sound, HeatShield is often the right call. If the structure itself is compromised, the flue has collapsed, or the damage extends into the chimney stack, HeatShield won’t fix that. We’ll show you the camera footage so you can see what we see.
HeatShield doesn’t remove creosote; sweeping removes creosote. HeatShield seals the cracks that let creosote penetrate the flue structure. The two work together. We sweep first, assess the tiles, and then tell you whether resurfacing makes sense. Call (855) 341-3461 for a free estimate.
Service Areas Near Rowland Heights
We also provide HeatShield service in nearby Rowland Heights service area communities and the surrounding San Gabriel Valley. For coastal and central Orange County work, see our HeatShield service in Long Beach page, and for the industrial corridor area, visit our HeatShield service in Santa Fe Springs page. We regularly serve Garden Grove, Fountain Valley, Westminster, Anaheim, and Stanton as well.
Book Your HeatShield Service in Rowland Heights Today
If your Rowland Heights chimney needs a HeatShield inspection, sweep, or resurfacing, call Walnut Chimney at (855) 341-3461. We’ll schedule your free estimate and give you a straight answer about what your flue actually needs.
Written by Russ Dempsey, Owner at Walnut Chimney, serving Rowland Heights and the San Gabriel Valley.