Chimney repair in Brentwood CA - keep rain out of the house and fumes out of your rooms
Crumbling mortar, a stain on the ceiling by the fireplace or a cracked liner? We find what's letting water or fumes in and fix that.
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What does chimney repair fix, and do I need it?
Chimney repair in Brentwood fixes the three parts that keep a chimney doing its job: the mortar between the bricks, the flashing where the chimney meets the roof, and the liner inside. At Allied Brentwood Masonry and Concrete, we get those sound again so rain stays out of your house and fumes stay out of your living spaces.
Most calls start with something you can see, like mortar sanding out of the joints up top, a water stain on the ceiling next to the chimney, or a sweep telling you the liner's cracked. The price turns on which of those parts is failing and how far it's gone, because patching a cracked crown is a much smaller job than relining a whole chimney, and on how easy your roof is to work from. The schedule mostly depends on what has to be ordered, a new liner being the usual one, and on a dry stretch for the roof work. Your written estimate puts a figure on your own chimney, with photos of what I found.
How we do chimney repair, top to bottom
I start by looking at the whole chimney, the crown and cap, the mortar, the flashing at the roof and the liner, because trouble in any one of them lets water or fumes in where they don't belong. Then we work from the top down, so fresh mortar isn't sitting under a crown that still leaks. Where the chimney passes through the roof, brick industry guidance calls for both base flashing and counter flashing to keep water out, and it rules out aluminum there because the alkalis in fresh mortar attack it. If your liner is cracked, I'll tell you plainly to leave the fireplace off until it's fixed.
Chimneys rarely wear out alone. If the mortar on the rest of the house has gone soft too, tuckpointing clears out the old joints and packs in new mortar, and bricks that have cracked or had their faces pop off get brick repair before the damage spreads.
Chimney repair in Brentwood under the Air District rules
Brentwood is inside the Bay Area Air District, which takes in all of Contra Costa County, so its wood-burning rules reach your fireplace. The one that matters for a bigger job covers any chimney or fireplace remodel that costs over $15,000 and needs a building permit, and on those you can install only a gas-fueled, electric or EPA-certified device. If you're ready to quit wood altogether, the district's Clean HEET Program offers homeowners up to $10,500 to replace a wood or pellet fireplace, stove or insert with an electric heat pump, or up to $1,000 to take one out with no replacement. When you're weighing a remodel like that, I'll go over where it lands with you before we price anything, so you're not paying for a plan the rules won't allow.
Out here, chimneys usually start failing at the crown, the concrete cap on top, because summer sun and winter rain crack it and then water works down into the joints. We see the same wear on jobs in Antioch and Oakley, and we work in the cities around Brentwood and farther out too.
- Call (925) 503-1047
- Mon–Fri: 7 AM–11 PM, Sat–Sun: 8 AM–10 PM
- Brentwood, CA 94513
What happens when you call Allied Brentwood Masonry and Concrete in Brentwood?
Call or send the form
Call (925) 503-1047 or send the form with a line about what you're seeing. We'll get back to you and set a time for me to come out.
I look it over with you
I come out myself, look at the chimney from the roof and inside, and point out what I'm seeing as I go. Then you get a written estimate with photos, so you can see the problem and the price side by side before you decide anything.
Our crew does the repair
If you go ahead, we check with the city or county office for your address first, and when a permit is needed we pull it and set up the inspections. Our own crew does the work, and I'm on site to set it out and check it as it goes.
We walk it together
At the end we walk the chimney together, and I show you what to keep an eye on, like the crown and the flashing. A homeowner who knows what to watch for is the best inspector a chimney can have.
Why Brentwood homeowners call Allied Brentwood Masonry and Concrete for chimney repair
The owner looks at every job
I come out to every job myself, look the chimney over with you and write the estimate, then I'm back on site to check the crew's work. You get answers from the person who actually saw your roof.
Mortar and chimney repair since 2021
I learned this trade under older masons for years before starting the business in Brentwood in 2021, and careful repair work, mortar and chimneys especially, is what we're known for. On a chimney, that means finding why it leaks before anyone picks up a trowel.
Licensed and fully insured in California
We're licensed and fully insured. The state licensing board's masonry classification covers fire brick, clay and concrete block, stone and terra cotta, which is what a chimney's built from, so it's fair to ask any mason you're considering how they're licensed for the work.
If your chimney's leaking or a sweep flagged the liner, tell us about it here or call (925) 503-1047, and I'll come take a look.
Request an estimateGet a free written chimney estimate with photos
We reply to every form within one business day to set a time. I come out myself, look over the mortar, flashing and liner with you, then send a free written estimate with photos. No pressure, no obligation.
- Licensed and fully insured.
- Phone
- (925) 503-1047
- Location
- Brentwood, CA 94513
- Hours
- Mon–Fri: 7 AM–11 PM, Sat–Sun: 8 AM–10 PM
Questions about chimney repair in Brentwood
When should I get my chimney inspected in Brentwood?
Chimney sweep guidance recommends a closer look, what sweeps call a Level 2 inspection, before you sell the house or reline the chimney, and after a chimney fire, a bad storm or earthquake, or any malfunction likely to have damaged it. That inspection includes a video scan or a similar look up the inside, so it catches cracks you can't see from the hearth. If one of those has happened at your house, start with the inspection before anyone prices a fix.
Is a clay or stainless steel chimney liner better?
One Bay Area remodeler says stainless steel flexible liners are the right choice for fireplaces you use regularly, because they handle repeated heating and cooling better than clay. Clay tile liners cost less upfront but can crack from sudden heat changes, by the same remodeler's account. That's why how often you light the fireplace is the first thing I'll ask.
Can I use my gas fireplace with a cracked chimney liner?
No, the same Bay Area remodeler says a gas fireplace with a cracked clay liner should stay off, because fumes can move through the cracks into your living spaces. It treats that as a safety problem, not a cosmetic one, so the liner gets fixed before the fireplace runs again.
How much does chimney repair cost in Brentwood, CA?
Chimney cap and crown repair across the US usually costs about $550 to $2,300 per job, and that covers only the top of the chimney. Liner and flashing work depend on what I find once I'm up there, so your written estimate is where your own figure comes from.
What causes a chimney to leak?
Most leaks come in through cracked mortar or a cracked crown on top, or through flashing that's failed where the chimney meets the roof. Those are the parts that keep rain out, so a stain by the fireplace usually traces back to one of them, and I check them all before saying which.
How do I get ready for a chimney inspection?
Clear a path to your attic, basement or crawl space, because an inspection checks the chimney in each of those spaces the inspector can reach. They'll also need to get onto the roof, so let them know about a locked side gate or a dog in the yard.
Other work that often goes with it
Tuckpointing
When the mortar on your house walls is as sandy and sunken as the chimney's, tuckpointing replaces it before water starts getting in behind the brick.
Brick repair
Bricks that have cracked, worked loose or started flaking off their faces get cut out and replaced with matching ones, so the wall stays solid and dry.
Book a look at your chimney
When you call or send the form, tell us whether the fireplace burns gas or wood, how often you light it, and whether you're selling or had storm or quake damage, so I come out knowing what to check.
Request an estimateCall (925) 503-1047