Chimney Repair in San Jose and the South Bay
Chimney repair covers everything from resealing a cracked crown to rebuilding a damaged flue, and most jobs fall between a same-visit fix and a multi-day masonry project depending on how far water or heat damage has spread. Left unaddressed, small cracks let water into the chimney structure, which turns a $400 repair into a $4,000 rebuild within a couple of Bay Area rain seasons.
Signs You Need a Repair
Water is the enemy. Most chimney repairs we run trace back to a small crack that went unnoticed for a season.
- Cracked or spalling (flaking) brick and mortar on the chimney exterior
- Rust or damage on the damper or firebox
- White staining (efflorescence) on the chimney, a sign of water intrusion
- Loose or missing flashing where the chimney meets the roofline
- A leaning chimney or visible gaps between the chimney and the house
Our Process
Diagnose
Diagnostic inspection, often paired with a Level 1 or 2 inspection, to identify the full extent of damage and not just the visible symptom.
Written Quote
Written quote before any work begins, with photos of the specific damage.
Repair
Repair using masonry-matched materials and waterproof, vapor-permeable sealants. Never paint-on tar, which traps moisture.
Final Walkthrough
Final walkthrough and photo documentation of the completed repair.
Why Choose SV Chimney Sweep
We diagnose before we quote, so you are not paying to fix a symptom while the underlying crack keeps letting water in. CSIA-certified, bonded and insured, with 139+ five-star Google reviews. Same-day diagnostic visits are available for urgent issues like active leaks or storm damage.
Chimney Repair Across the South Bay
Chimney repair throughout San Jose, Santa Clara, Sunnyvale, Cupertino, Los Gatos, Saratoga, and the wider South Bay.
Same-Day Service Available
Call before noon and we will do our best to get a certified technician out to you the same day. Open Sunday through Friday.
1269 Lakeside Dr, Sunnyvale, CA 94085
Chimney Repair FAQ
How do I know if chimney damage is urgent?
Active water leaking into the home, a visibly leaning chimney, or smoke entering the house are urgent and should be addressed within days, not months.
Can a cracked chimney crown wait until summer?
It is better not to. Bay Area winter rains push water into existing cracks, and freeze-thaw cycles, even mild ones, widen them over a season.
Will my homeowner’s insurance cover chimney repair?
Sometimes, particularly for storm or fire damage. A Level 2 inspection report is usually what your insurer will require to process a claim.
Do you repair both wood-burning and gas fireplace chimneys?
Yes, our repair technicians work on masonry and prefabricated chimneys for wood, gas, and electric fireplace systems.
