Chimney Rebuild Permits and Cost

Why There Is No Price on This Page

We publish prices for sweeps, inspections, caps and gas inserts because those jobs are alike from house to house. A chimney rebuild is not. Two Sherman Oaks chimneys of the same age can need very different work: one may need the top four feet rebuilt above the roof, the other may need to come down to the firebox. So rebuilds are quoted in writing after a Level 2 inspection, and this article explains what goes into that quote and why the permit is part of it.

Signs a Chimney Is Past Repair

Repair covers worn mortar, a cracked crown, loose bricks at the top. A rebuild is on the table when you see:

• - A chimney leaning away from the house, or a gap opening between the chimney and the wall.
• A crack running through the chimney at or just above the roofline.
• Bricks that move by hand above the roof.
• Masonry so spalled and soft that repointing would leave little sound brick to hold the new mortar.
• Damage from an earthquake, a fallen tree or a chimney fire that cracked the structure itself.

In the San Fernando Valley, the 1994 Northridge earthquake left many chimneys in exactly that condition. Some were rebuilt properly. Others were patched at the top and left standing, and they are still showing up on Level 2 inspections today.

The Permit, and Who Issues It

A rebuild is structural work, so it needs a building permit. Sherman Oaks, along with Studio City, Encino, Woodland Hills and Brentwood, is part of the City of Los Angeles, where the Department of Building and Safety issues permits. Burbank, Glendale, Pasadena, Calabasas and West Hollywood have their own building departments. Altadena is unincorporated and goes through Los Angeles County.

The permit brings inspections at set stages, typically while the work is open and again at the end. That inspector is checking the details that matter most in an earthquake. The paper record also matters later. When you sell, a buyer's inspector who sees new masonry above an old roofline will ask for the permit. When an insurer looks at a claim involving the chimney, it will ask too.

What the Seismic Rules Require of a Rebuilt Chimney

All of Southern California falls in the highest seismic design categories, and the residential code sets specific rules for masonry chimneys there:

• - Reinforcing steel. Vertical bars run the full height of the chimney, with horizontal ties at set spacing, and the cells are grouted solid.
• Anchorage. Steel straps tie the chimney to the house framing at the floor or ceiling line and at the roof, so the chimney moves with the house in a quake instead of pulling away.
• Clearance. The masonry keeps a two inch air space from wood framing inside the house, filled only with noncombustible fire blocking where required.
• Height. The new top must rise at least 3 feet above where it passes through the roof and 2 feet above anything within 10 feet. Sweeps call that the 3-2-10 rule.

A chimney built that way is heavier and stronger than the one it replaces. It also costs more than a brick-for-brick rebuild of the old design, which is exactly what the 1994 earthquake showed does not hold.

Brick or a Framed Chase

There is another permitted route that many Valley homes took after Northridge. The masonry comes down to the roofline or the firebox, and a wood-framed chase is built above it, with a listed metal chimney system or liner inside. The chase is finished in stucco or siding to match the house.

The choice usually comes down to this:

Approach	Good fit when	Trade-off
Reinforced brick rebuild	The house's look depends on the brick, or the fireplace below is being restored	Heavier, more labor, longer schedule
Framed chase with listed metal flue	The firebox is sound and the damage is at the top	Changes the look above the roof, needs a listed system

A chase weighs far less, which reduces what can fall in the next quake. Brick keeps the original character. When both are possible on your house, the written quote prices both side by side.

What Drives the Written Quote

Every rebuild quote we write breaks out the same parts:

1. How far down the damage goes. The Level 2 camera scan and a look in the attic decide where sound masonry starts. 2. Demolition and debris. Old brick comes down by hand, a few courses at a time, and leaves the site. 3. Masonry or framing. Reinforced brick or a framed chase, with the materials named. 4. The liner. A new flue liner sized to the fireplace or appliance it serves. 5. Flashing and roofing. New flashing at the roof, and a cricket on the uphill side if the chimney is wider than 30 inches. 6. Cap and spark arrestor. A new stainless cap that meets the arrestor rule, installed for $165 to $670. 7. Permit and inspections. The city's fees and the inspection stages on the schedule.

If you are weighing a rebuild, the first step is the Level 2 inspection, which runs $330. Book it through the form and mention any past quake or repair history you know of, and the quote that follows will be built from what the camera shows rather than from a guess at the roofline.

If the Chimney Is Unsafe Right Now

A chimney that is leaning or cracked at the roof should not be used, and in a strong wind or a small quake the top can fall. We can take it down to a safe height and cover or cap it while the permit is processed. That is a short, separate job. We will tell you plainly if the fireplace is off limits until the rebuild is done.

How Long It Takes

Most of the calendar time goes to the permit and inspections, not the building. The masonry or framing itself typically takes days, not weeks, once work starts. Weather matters for fresh mortar, so in Sherman Oaks we avoid the heaviest storm weeks and start summer work early in the day.

Talk Through Your Chimney

If you have a cracked or leaning chimney, or a buyer's inspector flagged one, call us with the button on this page. Tell us what you are seeing and roughly when the house was built, and we will set up the Level 2 inspection that every rebuild quote starts with.