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Notes from the roof

Santa Clara Valley chimney questions, answered plainly. Each article links to one service page and nowhere else.

  1. A seismic strap and anchor bracket being fitted to an older brick chimney during a retrofitAugust 2026The Caltrain Corridor’s Victorians and the Seismic Bracing QuestionThe historic homes lining the Caltrain corridor through Redwood City, San Carlos and Palo Alto often carry their original brick chimneys, built decades before modern seismic-bracing requirements existed. Here is why that gap matters, and how it gets checked.
  2. Close detail of a fine stainless mesh spark-arrestor cap sized to stop ember intrusionAugust 2026Diablo Wind Season and What It Means for Your ChimneyThe same dry, gusty offshore winds that raise regional wildfire risk each fall put a chimney’s spark-arrestor cap under more real pressure than most homeowners realize. Here is what actually changes, and what to check before the season starts.
  3. Brick faces flaking away and open mortar joints on a chimney, close detailAugust 2026What Changes the Scope of a Chimney RepairA chimney repair’s actual scope depends on a handful of real, checkable factors: how far the damage has spread, what the chimney is built from, and how accessible it is, not on the address alone. Here is what genuinely moves the work.
  4. Several new stainless steel chimney caps with mesh spark-arrestor screens laid out on a work surface before installationAugust 2026What Silicon Valley’s Tract-Housing Boom Built Into Your ChimneyThe tract-housing wave that filled Sunnyvale, Cupertino and Milpitas as the electronics industry grew left most of the valley with factory-built chimney systems rather than site-built brick. That single fact changes almost everything about how these chimneys fail.
  5. A technician crouched at a slim masonry fireplace inside a Sunnyvale Eichler home’s atrium, post-and-beam ceiling overheadAugust 2026The Eichler Fireplace: What a Flat Roof Does to a ChimneyAn Eichler home’s post-and-beam construction, flat roof and radiant in-slab heat come with a fireplace and flue unlike almost anything else in the Santa Clara Valley. The flat-roof penetration, not the crown, is usually where the real risk sits.
  6. A freshly poured concrete chimney crown with a sloped surface and an overhanging drip edge, seen from above on a roofAugust 2026When Chimney Work in the South Bay Actually Needs a PermitWhether a chimney repair needs a building permit depends on the city, the scope of the work, and whether it touches structural or life-safety systems, not on a single countywide rule. Here is how to think about it before assuming either way.
  7. A large HEPA extraction vacuum hose sealed into a firebox opening during a chimney cleaningJuly 2026What a Spare the Air Alert Actually Restricts About Your FireplaceA Bay Area Air Quality Management District Spare the Air alert bans wood-burning fireplaces and uncertified stoves on the winter’s worst air-quality days. It restricts burning, not servicing, and the exemptions are narrower than most people assume.