Sweep & inspection
Caps & crowns
Flue relining
Masonry repair
Gas fireplace serviceLevel 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed
Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.
Trusted Chimney Repair for Lake Forest Homeowners
A cracked flue tile, a rusted chimney cap, or a crown that’s starting to crumble is not something to put off. Water gets in, mortar keeps breaking down, and a small repair turns into a full rebuild. We handle chimney repair in Lake Forest the same way we handle everything else: with professional-grade materials, clear explanations of what’s actually wrong, and work that’s done right the first time. Don Dalton leads our team, and since 2015 we’ve worked on chimneys throughout Lake Forest, Irvine, and Santa Ana. If your chimney needs attention, call (833) 589-9146. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Chimney Cap Installation
Chimney Cap Installation keeps rain, birds, and debris out of your flue while also stopping sparks from landing on your roof. In Lake Forest, where the dry season stretches long and roof materials dry out fast, a proper cap is fire protection as much as it is weather protection. We install caps made from the professional supply lines we trust, Gelco included, fitted to your flue size and secured so wind won’t rattle them loose. A typical cap installation costs between $250 and $600 depending on the flue size, cap material, and whether we need to add a screen or custom bracket. Your written estimate sets the final price.
When a New Cap Makes Sense
If you can see daylight through a missing or cracked cap, or hear birds inside your flue, you need a new one. A missing cap also lets rain pour straight down onto your damper and firebox, which accelerates rust and can soak into the brickwork of your chimney chase. We’ll measure your flue, check the crown the cap sits on, and recommend the right cap rather than forcing an off-the-shelf fit.
Materials That Hold Up in Lake Forest
We use galvanized and stainless caps sourced through Gelco supply lines, which means the metal is baked onto the cap properly rather than flaking off after two summers. The cap gets screwed or mechanically fastened to the flue, not siliconed into place, so a storm won’t send it into your neighbor’s yard. If your flue runs hot, we’ll recommend a stainless option that won’t warp under the heat of a wood fire.
Styles & brands we work with
- Sweep & inspection
- Caps & crowns
- Flue relining
- Masonry repair
- Gas fireplace service
Chimney Cap Replacement
Chimney Cap Replacement takes a cap that’s rusted through, dented, or sized wrong and swaps it for one that actually protects your chimney. We see a lot of caps in Lake Forest homes that were installed by a previous owner as a cheap bolt-on, and they’ve long since stopped doing their job. Replacing a cap typically runs $200 to $550, depending on flue dimensions and the cap material you choose. The free estimate includes getting up on the roof, measuring, and showing you exactly what’s up there.
Signs Your Cap Is Done
Rust streaks running down the crown, a cap that clicks or rattles in the wind, or a screened section that’s clogged with creosote all point to replacement. If water is dripping into the firebox after a storm and the flashing is fine, the cap is usually the culprit. A cap that’s too small for the flue can also choke your draft, pushing smoke back into the living room on start-up.
What We Check Before Replacing
We’ll inspect the flue beneath the cap while we’re up there. If the top two feet of flue tile are spalling, that’s a sign the cap was letting water in for years, and we’ll talk through whether a chimney sweep in Lake Forest with a camera inspection is the right next step before we re-cap. We won’t put a new cap on a chimney that’s about to need a liner, not without telling you first.
Chimney Liner Installation
Chimney Liner Installation puts a continuous, correctly-sized flue inside your existing chimney so smoke, heat, and combustion gases leave the house safely. In Lake Forest homes built before the 1990s, clay tile liners are common, and they crack over time as the chimney heats and cools through Southern California’s warm days and cool nights. We install DuraFlex flexible liner systems, the same contractor-grade material certified chimney professionals use, not the thin aluminum liner you’d find at a hardware store. Liner installation in Lake Forest typically runs $2,800 to $6,000 depending on chimney height, flue size, and access. Your written estimate sets the final price.
Why a Damaged Liner Can’t Wait
Cracked flue tiles create gaps where heat and carbon monoxide can move into the wall cavities or living space. You won’t always see it from the firebox, which is why we run a camera up the flue before recommending a liner. The camera shows you the cracks or missing sections directly, so you can see for yourself why the liner is needed.
The DuraFlex Difference
DuraFlex liners are built from stainless steel designed for continuous high-heat cycling, and they’re cut and routed to fit your specific flue dimensions. We insulate the liner properly where building practice calls for it, and we connect it at the appliance and the cap so the system seals from top to bottom. This is not a slip-in fix; it’s a permanent flue replacement that restores the chimney’s original safety function.
Chimney Flashing Repair
Chimney Flashing Repair stops water from working its way between your chimney and the roofline, which is one of the most common leak sources in Lake Forest homes. Flashing is the metal that bridges the gap where the brick meets the shingles, and when it lifts, rusts, or was never installed right, rain finds its way into the attic and down the chimney chase. Flashing repair or replacement typically costs $400 to $1,200, depending on how much flashing is compromised and whether we need to cut back shingles to access it. The estimate is free.
Where Flashing Fails First
Step flashing and counter-flashing are the two pieces that work together. When one is missing or the sealant between them has dried and cracked, water wicks in behind the brick. We’ll inspect the roofline around the chimney, check for lifted shingles or dry rot in the decking, and show you photos of what’s happening before we quote the repair.
Why Caulk Is Not a Fix
Homeowners sometimes patch flashing gaps with roof cement or silicone caulk, and it fails within a season or two. Proper flashing work means cutting flashing into the mortar joint, overlapping the pieces correctly, and using roof-rated sealant where it belongs. For chimneys in Irvine and Santa Ana where we also work, the same approach applies, and we stand behind the repair.
Chimney Crown Repair
Chimney Crown Repair rebuilds or resurfaces the concrete slab that covers the top of the chimney around the flue, which is your chimney’s first line of defense against rain. Cracks in the crown let water soak into the brick below, and that’s how a perfectly good chimney starts spalling and leaking inside the house. Crown repair in Lake Forest runs $500 to $1,500, depending on crown size, crack severity, and whether we’re sealing, resurfacing, or pouring a new crown. Final pricing is always by written estimate.
Why Crowns Crack in This Climate
Lake Forest doesn’t get ice, but it does get long dry summers and occasional heavy rain, and that cycle shrinks and swells the crown concrete just enough to open hairline cracks over years. A crown that was poured too thin at the edges, or built without a drip edge, cracks faster. We see it often on chimneys built in the 1970s and 1980s throughout the Saddleback Valley.
Our Crown Repair Process
We clean the crown, chase out the cracks, fill and seal them with a flexible crown coat, and add a drip edge where the old crown lacked one. If the crown is too far gone, we form and pour a new one with a proper slope so water runs off instead of pooling. This is where our HeatShield training comes in, because the same resurfacing discipline that restores flue tiles applies to sealing the crown correctly.
Chimney Repair Companies
Chimney Repair Companies are not all the same, and the difference matters when a bad repair can mean water in your walls or a chimney fire. What you want is a company that can make the repair today and also understand the full system, because a crack in the firebox and a cracked flue liner are two different fixes. We’re a dedicated chimney and ventilation specialist serving Lake Forest and the surrounding cities. We don’t hand off liner or masonry work to someone else; it’s our crew on your roof, and Don Dalton is the one accountable for the work.
What to Look For
Ask whether the company does its own masonry and liner work or subcontracts it. Ask if they run a camera before recommending a liner. Ask if they’re certified in the resurfacing products they use. We’ll answer all three before you even ask, and we’d rather show you than tell you.
Why Sweep-First Matters
A chimney repair should begin with a clean inspection pass so you can see the flue, the damper, and the firebox without creosote hiding the problem. That’s why our chimney sweep Lake Forest service is the same team that repairs what the inspection finds. One specialist for the whole job, rather than a cleaning company that stops at the firebox and tells you to call someone else.
Chimney Masonry Repair
Chimney Masonry Repair restores the brick and mortar structure of the chimney itself, from tuckpointing joints to rebuilding sections that have spalled or shifted. Over years of heat, rain, and the mild thermal swing we get in Lake Forest, mortar breaks down and bricks begin to flake or loosen. Masonry repair pricing depends heavily on the scale of the work: small tuckpointing jobs run $500 to $1,000, while rebuilding a top section of chimney can run $1,500 to $4,500. We quote by written estimate after seeing the chimney up close.
When Mortar Joints Need Help
If you can scrape mortar out of the joints with a screwdriver, the structural integrity of the chimney stack is already compromised. Loose bricks let water in, and over time the stack can start to lean or settle. We grind out the bad joints and repoint with mortar matched to the original in strength and texture, so the repair doesn’t stand out and doesn’t create new problems.
Repair Before Rebuild
Most masonry chimneys don’t need to come down. A competent repair that catches the problem early costs a fraction of a rebuild, and we’re straightforward about when masonry repair is enough and when it isn’t. Our HeatShield certification means we can often restore flue tiles and parge the smoke chamber without tearing out brick, which keeps the repair faster and less invasive.
Brands We Service
We work with Gelco chimney caps and covers, and we trust their manufacture because the seams are welded and weatherproofed correctly, not just bent and clipped. Whether you need a standard single-flue cap or a custom multi-flue cover, Gelco gives us a professional product we can install confidently.
We install DuraFlex chimney liners and recommend them to Lake Forest homeowners who need a full reline. The steel is up to the heat and corrosive conditions of a working chimney, and it’s the same system used in professional chimney relining work across the region. We also use Olympia Chimney and Copperfield supply lines for everything from caps to chimney-top dampers, so the parts we put on your home come from industry suppliers, not a big-box shelf. Whether you have Gelco, DuraFlex, or any other make, we can help.
See the difference
Before
After
Before
After
Before
AfterSigns You Need a Pro Right Now
- Water in the firebox. If you see water pooling or staining inside the firebox after rain, water is getting past the cap, crown, or flashing. Left alone, it rusts the damper assembly and soaks the masonry from inside, which speeds up costly repairs.
- Rust streaks on the chimney exterior. Stains running down the brick or the cap mean the metal up top is rusting through. That’s a cap or flashing problem, and it’s cheaper to fix that than to rebuild the brick that rust stains are quietly damaging.
- Flaking brick or missing mortar. If the face of the brick is peeling off in sheets, that’s spalling, and it’s usually caused by water penetrating the masonry. Repointing and sealing now saves a much bigger masonry rebuild later.
- Smoke backing up into the room. A draft that suddenly reverses, or smoke that fills the room when you light a fire, can be a cracked flue liner or a blocked flue. Don’t keep using the fireplace in that condition. Call us and we’ll camera the flue to find the cause.
- A cap that’s missing or hanging off. If you see a cap missing after a storm, you’re going to get rain, birds, and possibly sparks coming out of that open flue. We can replace it before the next dry season turns that debris into a fire hazard.
Our Process, Step by Step
- 1
We answer your call and book the visit. You’ll reach a real person at (833) 589-9146. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday, so we’ll get you on the schedule quickly.
- 2
We inspect the chimney and run the camera. We set up our equipment, get on the roof, and run a camera through the flue so we can see the condition of the liner, damper, cap, and crown. You see the same footage we see, and we explain what it means in plain English.
- 3
We write up a flat-price estimate. The estimate is free and it’s detailed, so you know what the repair includes and what it will cost. The written estimate sets the final price. If something can safely wait, we say so.
- 4
We do the repair with professional materials. DuraFlex for liners. HeatShield for resurfacing. Gelco for caps and covers. Our crew handles the repair from start to finish, no subcontracting.
- 5
We walk you through the work and leave the site clean. We’ll show you what we fixed, what it looked like before, and what to expect going forward. If you also need a dryer vent cleaning, we’ll handle that while we’re there with Famco ventilation products.
How Much Does Chimney Repair Cost in Lake Forest?
Chimney repair in Lake Forest runs from about $200 for a basic cap replacement up to $6,000 for a full stainless liner installation. Here is how common repairs in this area typically price out:
- Chimney cap installation or replacement: $200 to $600
- Chimney crown repair or resurfacing: $500 to $1,500
- Flashing repair: $400 to $1,200
- Masonry repointing or minor rebuild: $500 to $4,500 depending on scale
- Chimney liner installation (DuraFlex): $2,800 to $6,000
What affects the price most is chimney height, access, the condition of the surrounding masonry, and whether we’re repairing or replacing. A two-story chimney on a steep roof costs more to work on than a single-story chase. We never give a quote over the phone without seeing the chimney, and we never recommend a repair without camera or visual evidence you can see for yourself. That’s how you avoid overpaying: you only pay for repairs that are actually necessary. The estimate is free, and the written estimate sets the final price.
Our Service Area Near Lake Forest
We work throughout Lake Forest and nearby communities, including Irvine, Santa Ana, Mission Viejo, Orange, Costa Mesa, Laguna Beach, Tustin, Laguna Niguel, Rancho Santa Margarita, Aliso Viejo, and Newport Beach. Most homes are within a short drive of our service base, and we plan the day in routes so we can get to you without making you wait through a wide dispatch window. If you’re close to the Saddleback Valley or just over the 5 or 405, we can get on your roof quickly. Irvine homeowners call us for the same reason our Lake Forest neighbors do: one specialist who can sweep, inspect, and repair without passing you to another company.
Serving Lake Forest, CA – Our Local Coverage Area
We serve Lake Forest and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
Frequently Asked Questions About Chimney Repair in Lake Forest
Chimney repair is any work that restores the structural or functional integrity of your chimney, including cap replacement, crown repair, flashing repair, masonry repointing, and liner installation. We start with an inspection and camera pass to identify the specific problem before recommending anything. Chimney repair is not one job; it’s a category that spans small weather sealing and full flue replacement.
Most cap replacements and flashing repairs are done the same day, often within a few hours of roof access. A full DuraFlex liner installation or significant masonry rebuild can take a day to a day and a half depending on chimney height and access. We’ll give you a clear time frame before we start, and we clean up the site the same day we finish.
Chimney repair in Lake Forest ranges from about $200 for a cap replacement up to $6,000 for a full liner installation. Most repairs fall between $400 and $1,500, but the only way to get an accurate number is with an inspection. The estimate is free, and the written estimate sets the final price, so call (833) 589-9146 and we’ll take a look.
Yes. We install and work with Gelco caps and covers and DuraFlex liner systems regularly. We’re trained on HeatShield resurfacing as well, so if you have a chimney with these products or need one installed, our crew handles it directly. We don’t outsource liner or cap work to other companies.
Yes, in most cases we can handle cap, flashing, and crown seal repairs the same day as the inspection. We dispatch Sunday through Friday from 7am to 7pm, and we answer the phone 24/7. A call outside dispatch hours is booked into the next opening, Sunday through Friday, 7am to 7pm.
We stand behind the work and the materials we install. A warranty means nothing if a company won’t come back when something fails, and we do. Talk to us before the job about what warranty comes with the specific repair, and we’ll be upfront about it.
Clear the area around the fireplace so we can set up a drop cloth and inspect the firebox and damper without moving furniture. If it’s a roof repair, make sure we can access the chimney safely and that any pets are inside. We’ll do the rest, including leaving the work area clean.
Schedule Your Chimney Repair Service in Lake Forest Today
Don’t let a small crack become a big rebuild. Call (833) 589-9146 for your free estimate in Lake Forest. We answer 24/7, and Don Dalton is the one accountable for the work. Professional-grade materials, residential pricing, and one specialist for the whole job. Call now.
Written by Don Dalton, Owner at Chimney Sweep Lake Forest, serving Lake Forest since 2015.