904 cities and towns covered
Seismic Chimney Retrofit in California
An unreinforced masonry chimney is a stack of bricks with no steel in it and no connection to the building. Northridge demonstrated exactly what that means.
Leave the building and call from outside — that is an emergency services call, not a service call. A blocked or failed flue is one of the ways carbon monoxide reaches a living space, and headaches that clear when you leave the house point the same way. If you have had a chimney fire — a roaring sound, dense smoke, or debris on the roof — do not light another fire until the flue has been inspected.
Call about a seismic retrofit
(844) 785-4066Free to use, and there is nothing to pay us. You are never committed to going ahead.
What happens when you call
- You describe the problem and where you are.
- We put you in touch with a licensed contractor covering that area.
- They arrange the visit and agree the price with you directly.
Worth having to hand
- Roughly how old the system is
- What it is doing — or not doing
- Your ZIP code
What to ask for on Seismic Chimney Retrofit
- Steel strapping and anchor plates
- Tied into roof and floor framing
- Assessment of existing bracing
- Removal or rebuild where bracing is not enough
- Licensed & insured We match you with contractors who hold current licensing and cover.
- Know what to ask Every page says what decides the price, so you can judge a quote.
- Free to use We never charge you. Compare quotes and walk away at any point.
- Same-day reply Inquiries answered the day they arrive, usually within a couple of hours.
How it works
Three steps, no obligation at any of them.
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1
Call and tell us what is wrong
Describe the problem and give us your ZIP code. We match you with a chimney company covering your area — there is nothing to fill in and nothing to pay us.
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2
A local contractor gets in touch
A local chimney company contacts you to discuss the problem and arrange a visit. What they charge to attend or diagnose is theirs to set, so agree it with them up front.
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3
You decide
Book the work, wait a season, or get a second quote. There is no obligation to go ahead with the contractor we introduce you to, and nothing to pay us either way.
What these repairs look like
Illustrative examples of the work described here. More in our disclaimer.
What unreinforced means and why it matters
Masonry built before modern code is brick laid in mortar and nothing else. There is no reinforcing steel running through it and typically no mechanical tie between the chimney and the structure it leans against. In a lateral event the chimney and the house move independently, and the chimney is the part with no tensile strength.
The failure mode is not subtle. Stacks shear at the roofline and fall, and they fall through the roof or onto whatever is beside the house.
What the retrofit involves
Galvanized steel strapping and anchor plates connecting the chimney to the roof and floor framing, usually reached through the attic. On a typical single-family house it is a day of work rather than a rebuild, and it does not change what the chimney looks like from outside.
When bracing is not the answer
Where the stack is already badly cracked or has moved, strapping a compromised structure to the building is not a fix. The honest options then are rebuilding in reinforced masonry, or removing the chimney above the roofline and venting differently — which, if nothing vents into it any more, is frequently the most sensible outcome.
Permits and who does the work
Seismic retrofit is structural work. Many California cities and counties require a permit and an inspection, and some have specific prescriptive standards for chimney bracing.
Ask who pulls the permit
It should be the contractor, and the CSLB license classification should cover structural work. Check the license on the board's free lookup before anything starts.
Insurance and disclosure
An unbraced unreinforced stack is a known hazard and it comes up on sale. Having the retrofit done and documented is worth more than the cost of it when the property changes hands.
Seismic Chimney Retrofit — frequently asked questions
How do I know if my chimney is unreinforced?
Age is the strongest signal — pre-1940 brick chimneys very likely are. An inspection confirms it, and looking is inexpensive next to the alternative.
How long does a retrofit take?
A day on a typical house. Access through the attic is what determines how straightforward it is.
Will it change how the chimney looks?
No. The work is inside the roof structure, not on the visible masonry.
Is removal cheaper than bracing?
Sometimes, particularly where the chimney is disused and can come down to the roofline and be roofed over. If an appliance still vents into it, removal is not on the table.
Does insurance cover earthquake chimney damage?
Standard homeowner policies in California generally exclude earthquake. That is a question for your insurer, and the answer is one more reason to retrofit rather than to wait.
Seismic Chimney Retrofit near you
We cover cities and towns across California.