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 Chimney Sweep Across Monrovia
A chimney sweep in Monrovia typically costs $189 – $289 for a standard fireplace with a clay-tile or masonry flue, and most sweeps take 60 – 90 minutes from setup to final vacuum. If you live north of Foothill Blvd in the foothills, the job matters more here than almost anywhere in the San Gabriel Valley. Santa Ana winds can push 60 – 80 mph gusts down those canyons, and an uncleaned flue with third-degree creosote becomes an ember trap. Our Chimney Sweep team works Monrovia every week, from the Craftsman bungalows around Old Town up to the hillside homes above Norumbega Drive. Call (866) 253-5031 and we’ll get you on the schedule before the fall winds start.

Why Pilgrim Chimney Is Monrovia’s Preferred Chimney Sweep Company
We’ve spent years working the chimneys that define Monrovia: early-1900s Craftsman bungalows in 91016 with original brick stacks, mid-century ranch homes in 91017 with masonry chimneys that have seen decades of winter fires, and foothill properties where the wind does things to a chimney crown that flatland homes never experience. That repetition matters. When we arrive at a home off Myrtle Avenue, we already know what that chimney is likely to need before we set up the ladder.
Len Pacheco built Pilgrim Chimney around a simple rule: show the homeowner the proof before recommending any work. That’s why every sweep includes camera inspection. If we find a glaze line, a cracked flue tile, or failing mortar, you’ll see it on the screen. No mystery, no pressure. Monrovia homeowners call us because the recommendation comes with footage, not a sales pitch.
Our response time into Monrovia from our Victorville base runs about 45 – 55 minutes on most days. We schedule sweeps in the 91016 and 91017 ZIP codes four days a week during peak season, so you’re not waiting weeks while creosote builds up ahead of the winds.
Styles & brands we work with





Gas Fireplace Cleaning in Monrovia
Gas Fireplace Cleaning in Monrovia is a different job than wood-burning sweeps, but plenty of foothill and Old Town homes have converted to gas inserts while keeping the original chimney shell. The work involves removing the glass, cleaning the burner and pilot assembly, vacuuming soot and dust from the firebox, and inspecting the venting run for blockages or corrosion. A gas fireplace cleaning in Monrovia runs $149 – $219 depending on the unit and venting configuration.
What We Actually Do
We pull the logs or glass front, brush and vacuum the interior, clean the burner ports with compressed air where needed, and check that the vent is drafting correctly. The camera goes up the flue too. Rodents and birds nest in abandoned gas vents all over Monrovia, and a blocked vent on a gas unit is a carbon monoxide risk, not just a nuisance.
When To Book It
If you use a gas fireplace more than a few times per winter, annual cleaning keeps the burner efficient and the glass from hazing. Homes in Monrovia’s foothills should also get the vent checked before fire season, because wasps and birds build quickly in the dry months when the unit sits unused.
Chimney Maintenance in Monrovia
Chimney Maintenance in Monrovia means dealing with what the local climate does to masonry: Santa Ana winds that dry and crack crowns, summer heat that expands and contracts mortar joints, and winter fires that deposit creosote faster in older, undersized flues. A maintenance visit typically runs $189 – $329 depending on whether we’re just sweeping and inspecting or also repointing loose mortar, sealing a crown, or replacing a cap.
Crown Sealing and Mortar Repointing
On the Craftsman homes near Old Town, the brick is often still solid but the mortar has turned to sand. We repoint those joints before water gets behind the brick and starts spalling. Crown sealing is standard on foothill chimneys where wind-driven rain and dry gusts have opened hairline cracks that let water into the stack.
The Fall Pre-Wind Check
We recommend Monrovia homeowners schedule maintenance in September or early October. That gets the creosote out and the cap secured before the first Santa Ana event. If you wait until November, you’re competing for slots after the winds already started, and a compromised cap in a 70 mph gust is how chimneys lose their crowns entirely.

Trusted Brands We Service in Monrovia
We work with professional-trade materials, not hardware-store patch kits. On Monrovia jobs we regularly service and install DuraFlex liner systems, HeatShield resurfacing, and Copperfield caps and dampers. When a foothill chimney needs a new ember-arrestor cap or a deteriorated flue needs resurfacing, we’re working with the same brands certified chimney technicians use nationwide. Len Pacheco keeps our stock organized so a Monrovia repair doesn’t stall waiting on a part to ship. If we open a crown and find the damper frame rotted, we have the Copperfield replacement on the truck more often than not.
Common Chimney Sweep Problems We See in Monrovia Homes
- Third-degree creosote glaze in foothill flues. The dry Santa Ana cycles bake creosote into a hard, shiny glaze that standard brushes can’t remove. We see this constantly north of Foothill Blvd, and it needs chemical treatment followed by mechanical removal. Left alone, it’s exactly what ignites when embers and high wind combine.
- Crumbling mortar on Old Town Craftsman chimneys. The mortar in a 1920s brick chimney crumbles faster than the brick itself. We find spalling faces and joints opened up by decades of wet winters and dry summers. Good repointing fixes it before water intrusion forces a full rebuild.
- Cracked crowns and missing caps on hillside homes. Wind-driven debris and constant expansion from heat and dry air crack chimney crowns fast in the foothills. A missing or rusted cap lets rain, birds, and embers straight into the flue.
- Blocked caps from fire-season closures. Homeowners shut dampers and forget the chimney for six months. Birds and squirrels move in. By October the cap is packed with nesting material, and the first fire of the season smokes out the living room. We clear it before you light anything.
See the difference
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AfterPricing for Chimney Sweep in Monrovia, CA
A standard sweep in Monrovia runs $189 – $289. That includes the full flue brushing, firebox and smoke shelf cleaning, cap inspection, and the camera scan. Level 1 inspections run $99 – $149. Level 2 inspections, which Monrovia homeowners usually book when buying or selling an older foothill home, run $249 – $399. If the camera shows a glaze line requiring chemical treatment, expect $150 – $250 added to the sweep. Repointing starts around $400 and goes up based on joint footage and access. HeatShield resurfacing and DuraFlex liner work are quoted per job after the camera inspection, not before. Estimates are free, and every recommendation comes with footage you can watch. Call (866) 253-5031 for an exact quote.
We Also Serve Cities Near Monrovia
Our team covers Monrovia and the surrounding foothill communities. We regularly work in Mayflower Village, Duarte, Bradbury, and Arcadia. If you live just over the Monrovia line in any direction, the same camera-first approach applies, and the same Santa Ana-driven urgency holds for foothill homes.
Serving Monrovia, CA — Our Local Coverage Area
We’re based in the Monrovia 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 Sweep in Monrovia
Because 60 – 80 mph Santa Ana gusts funnel down the San Gabriel canyons and push embers into flues and onto roofs in ways that Duarte or Arcadia’s valley floor never experiences. A single ember landing in a creosote-glazed flue or blowing through a missing cap can put a hillside home’s roof on fire in minutes. Annual sweeping removes that creosote and confirms your ember-arrestor cap is secured. Call (866) 253-5031 to book before the winds pick up.
We don’t brush it. A standard wire brush on a glazed, hardened creosote surface is like running a broom across glass. The glaze requires a chemical treatment to break it down, followed by mechanical removal with professional rotary tools. We find third-degree creosote regularly in foothill homes and in older Old Town chimneys with poor drafting. The camera shows you the glaze before we start, and we explain exactly what’s needed. If you suspect a glaze line, call (866) 253-5031 and we’ll confirm it on camera.
Crumbling or sandy mortar joints are the first sign. Run your hand (carefully, at ground level) along a brick joint, and if grains of sand come off, the mortar has lost its binder. You might also see white efflorescence staining or spalled brick faces. On Monrovia’s early-1900s homes, we rarely open a chimney and find the mortar in good shape unless it has been repointed in the last decade. Repointing is a structural repair, not cosmetic, and it is far cheaper than rebuilding a chimney that water has destroyed.
Before. September and early October are the right windows in Monrovia. You want the creosote gone, the cap secured, and the crown sealed before the first wind event, not after the damage is done. If you wait until after the winds, you may be scheduling a repair rather than a sweep. Call (866) 253-5031 and we’ll get your pre-wind inspection on the calendar.
Yes. We clean gas fireplaces and inspect the venting system in Monrovia homes throughout 91016 and 91017. This includes the burner, pilot, firebox, glass, and the full vent run up the existing chimney. A blocked or corroded gas vent is a carbon monoxide risk, which is why we camera-scan gas vents just like wood-burning flues. Estimates are free, so call (866) 253-5031 and we’ll check yours.
Call Pilgrim Chimney for Monrovia Chimney Sweep
If you live in Monrovia, you already know the wind. You know what a dry October afternoon feels like when the Santa Anas start. The best time to sweep your chimney is before that wind arrives, not after. We work with camera evidence, professional-grade materials from HeatShield, DuraFlex, and Copperfield, and a steady, methodical approach that doesn’t upsell you on anything you can’t see for yourself. Call (866) 253-5031 for a free estimate, and let’s get your chimney ready before the season does.
Written by Len Pacheco, Owner at Pilgrim Chimney, serving Monrovia and the San Gabriel Valley foothills.