Serving the San Gabriel Valley foothills since 1996. Annual sweeps, camera-scoped inspections, Santa Ana damage crews, historic masonry restoration, and 24/7 dispatch out of our S Shamrock Ave shop.
Same-day service across Monrovia and the greater San Gabriel Valley. Every job flat-rate quoted before we start. Every rooftop tech CSIA-certified, every mason working under our C-29 license out of the S Shamrock Ave shop.
Santa Ana damage, post-storm crown cracks, active water intrusion, chimney fires, dislodged flue tiles. Live dispatcher on the second ring, closest CSIA-certified crew rolls from S Shamrock immediately.
Call 24/7 →Annual sweep, camera-scoped Level 1 inspection, creosote assessment, written report for your insurer. Drop cloths from the front door to the hearth, HEPA vacuums, no dust on the mantel.
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Historic craftsman restorations, partial rebuilds above the roofline, tuck-pointing, brick-matching on 1920s-1970s SGV homes. Reclaimed brick sourcing, aged-mortar matching, LA County permitted and inspection-ready.
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Cracked firebrick swapped, damper rebuilds, hearth extensions brought up to code. Wood-burning restorations, gas-log conversions, sealed-glass insert installs. Full teardown-and-refresh for pre-sale homes.
Get quote →Cracked crowns rebuilt in fibre-reinforced mortar, stainless caps sized to your flue, ChimneySaver vapor-permeable waterproofer, 10-year warranty. Peace of mind before the winter rains come down the foothills.
Get quote →Code-legal gas insert installs, custom fireplace design and full build-outs for foothill remodels. Reclaimed brick, refractory firebox rebuilds, hidden gas supply lines through crawlspace, tuned venting.
Get quote →Same trade-craft playbook every job. Live dispatcher, flat quote on paper, and no leaving your foothill home with soot on the hearth.
Live in-house dispatcher picks up within 3 rings. Triage the issue, dispatch the closest CSIA-certified crew from Shamrock.
Booties on, drop cloths down from the door, camera scope out. Tomás or another master sweep walks you through the flue and what needs doing.
Signed quote on the tablet before we spark a torch or lift a brick. Approve it or walk — the assessment's on us either way.
Work done, tools stowed, hearth cleaner than we found it. 2-year written warranty in your inbox before we pull off Shamrock.
Santa Ana winds have been through, autumn debris has come down the flue, and every foothill chimney takes on more this time of year. Chimney fires are almost always preventable, and almost always caught by an annual sweep. NFPA 211 says once a year, every year.
(626) 397-5884Real Monrovia, Arcadia, and Sierra Madre neighbors. Every one verified by the Better Business Bureau. Unedited, standing in the record.
Booked the annual sweep on our 1908 craftsman up in the old part of town. Tomás showed up on time, put drop cloths from the front door to the hearth, brought the HEPA vacuum and camera scope. Pulled a bag of creosote we hadn't touched in five years, spotted a hairline crack in the terra cotta liner and walked me through the relining options right there on his tablet.
Big Santa Ana blew through Arcadia in January and took most of our crown with it. Water was coming down the flue by morning. Called Monrovia Chimney at 7 a.m., Marcos was on the roof by 9:15. Tarped the top before lunch, brought the permanent rebuild crew back on Wednesday. Salvaged all the original brick and matched the mortar joints.
1952 ranch house in Sierra Madre with a firebox falling apart. Wanted a gas insert put in but done properly — code-legal, no visible gas line, original masonry preserved. Aaron drew up the plan first visit, sourced firebrick matching the aged original, hid the gas supply through the crawlspace, tuned the venting. Passed inspection first walk.
Not the biggest chimney shop in the SGV — the one that stayed on S Shamrock for 30 years, hired local Monrovia apprentices, and stayed on the phone at 2 a.m. through every Santa Ana.
Third-generation family shop. Same yard on S Shamrock since 1996, hired every apprentice from the SGV, still parking every truck at the same shop.
Every sweep is a Chimney Safety Institute of America certified master — annual continuing-ed, real credentials, ID card in the truck.
Every review from an actual Monrovia, Arcadia, or Sierra Madre homeowner. BBB A+ accredited since 2005. Not one review bought, not one traded.
CA Contractor License C-29 — masonry classification. $2M general liability + workers-comp. Certificate of insurance emailed on request.
Based at 1323 S Shamrock Ave, we cover Monrovia and every foothill neighborhood inside a 40-minute reach from the shop.
Live dispatcher 24/7. Flat-rate quotes always on paper. Free assessments on every non-emergency visit inside the SGV.
Yes — we dispatch CSIA-certified sweeps and CA-licensed masons 24 hours a day, 365 days a year from our S Shamrock Ave shop. Santa Ana damage, post-storm crown cracks, active water intrusion, chimney fires, and dislodged flue tiles all get emergency routing with a live dispatcher who picks up before the third ring.
Average arrival inside 91016 is 22 minutes. Same-day service across the greater San Gabriel Valley is standard, and priority routing for active emergencies goes to whichever roof-ready crew is closest at the time.
Every day. Arcadia, Sierra Madre, Duarte, Pasadena, Altadena, Azusa, and San Gabriel are all part of our standing service zone. If we can reach your address inside 40 minutes we will dispatch, and travel is free anywhere in the SGV.
Every job — sweep, camera inspection, relining, crown rebuild, masonry repair, gas insert install — is flat-rate quoted in writing before we start work. No hourly meter, no line-item surprises, no charge if you don't approve the estimate. Post-storm emergency calls carry a modest dispatch fee we disclose on the phone.
Every rooftop tech is a CSIA-Certified Chimney Sweep. Our masons work under CA Contractor License #1032748 (C-29). Monrovia Chimney is BBB A+ accredited since 2005, carries $2M in general liability plus workers-comp. Certificate of insurance emailed on request to homeowners, insurers, and HOA boards.