Level 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.
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AfterTrusted Chimney Cap & Crown for Smithtown Homeowners
Our Smithtown Chimney Cap & Crown repair typically costs between $280 and $1,800 depending on whether you need a simple cap replacement or full crown rebuild, and most jobs are completed in a single visit. Hearthstone Chimney Co. has installed and repaired chimney caps and crowns across Smithtown for over 42 years, from the historic homes near the Bull to the newer developments off Jericho Turnpike.
We’re the company homeowners call when water is getting into the flue, when the crown has hairline cracks from too many freeze-thaw cycles, or when squirrels have figured out the chimney is the warmest real estate in Kings Park. Russell Haines built this business in 1984 on a straightforward idea: document what you find, explain it in plain English, and stand behind the work. Every cap and crown job starts with a Level-2 camera inspection so you see what we see. No surprises on the bill. No arguing if something needs fixing. Call (631) 814-2057 - a live person answers, 24 hours a day.
Smithtown’s coastal climate is hard on masonry. The nor’easters drive rain sideways. The humidity in July and August lets moisture creep into every micro-crack. Then January drops to 18 degrees and that water expands, popping off chunks of crown concrete or rusting out a galvanized cap in five years instead of fifteen. We’ve replaced caps in St. James that were installed wrong in the 1990s and rebuilt crowns in Nissequogue where the original builder skipped the expansion joints. We know what lasts here because we’ve watched what fails.
What Our Chimney Cap & Crown Service Includes
Cap Installation
A chimney cap is the metal or masonry cover that sits atop your flue, keeping rain, animals, and debris out while letting smoke escape. You need one if your flue is open to the sky, if your current cap is missing, or if you’ve had birds or squirrels nesting above the smoke chamber. At Hearthstone Chimney Co., we measure your flue precisely, recommend the right cap for your fuel type and chimney configuration, and install it with stainless steel fasteners and proper clearances so it doesn’t trap creosote or obstruct draft. We source caps from Olympia Chimney, Famco, and Copperfield depending on what fits your chimney and your budget.
Cap Replacement
Cap replacement becomes necessary when the existing cap is rusted through, blown off in a storm, or improperly sized from a previous installation. In Smithtown, we see a lot of galvanized caps that lasted maybe seven years before the salt air got to them, especially in homes near the Nissequogue River or Long Island Sound. We remove the old cap, inspect the flue tile and crown beneath for hidden damage, and install a replacement that matches or exceeds the original specification. Our technicians carry common sizes on the truck, so most replacements happen same visit.
Crown Repair
The crown is the concrete slab that seals the top of your chimney between the flue tiles and the edge brick. Crown repair addresses cracking, spalling, or deterioration before water reaches the brick below and causes thousands in rebuild costs. We grind out cracks wider than a sixteenth inch, fill them with flexible crown sealant, and apply a waterproof coating rated for freeze-thaw cycling. For crowns with more extensive damage, we may recommend partial rebuild rather than patchwork that will fail in two seasons. Every repair is photographed before, during, and after, and we explain exactly what we found and why we chose the repair method we did.
Crown Coating
Crown coating is a preventive treatment for crowns that are sound structurally but showing early surface wear, minor hairlines, or porosity. We apply a specialized elastomeric coating, such as products from HeatShield or professional-grade formulations we source through Copperfield, that bridges small cracks and sheds water while allowing the concrete to breathe. This is cost-effective maintenance for Chimney Cap & Crown in Hauppauge and Smithtown homeowners with crowns five to fifteen years old, especially if you’re planning to stay in the house. We won’t sell you a coating if the crown needs rebuild, and we’ll show you the camera footage so you understand why.
Multi-Flue Cap
A multi-flue cap covers two or more flues with a single structure, common in Smithtown homes with fireplaces on multiple levels or separate flues for a boiler and a fireplace. These require precise measurement and proper height to avoid draft interference between flues. We fabricate and install multi-flue caps with adequate screen height to prevent spark escape and sufficient lid overhang to direct water away from the masonry. Our designs account for the specific spacing and dimensions of your flue cluster, not a one-size-fits-all box from a hardware store.
Custom Cap
Custom caps are necessary for oversized flues, decorative chimneys, or heritage homes where standard sizes won’t work or would look wrong. We’ve built custom copper caps for Victorian homes in the Village of the Branch and fabricated oversized stainless solutions for commercial-style fireplaces in Fort Salonga. Russell Haines reviews every custom order personally to ensure the design handles Smithtown’s wind loads and salt air while matching the architectural character of the home. Lead time is typically two weeks, installation is one visit, and the cap carries the same 90-Day Done Right Promise as everything else we do.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Brands We Service for Chimney Cap & Crown
We work exclusively with professional-grade materials from brands that have proven themselves in the field, not substitutes that save us money and cost you a second repair. Olympia Chimney manufactures stainless steel caps and accessories we’ve installed on hundreds of Smithtown homes; their welded-seam construction holds up to the salt spray from Long Island Sound better than stamped alternatives, and we stock their most common sizes so replacement doesn’t require a two-week wait. Famco produces caps with superior screen design that resists clogging from cottonwood seed and leaf debris, which matters more than you’d think in neighborhoods near Blydenburgh County Park where the trees are dense and the seasons are active.
Copperfield supplies the crown repair materials, sealants, and coatings we trust for freeze-thaw durability, and their technical support has bailed us out on unusual flue configurations more than once. DuraFlex is our go-to for liner and venting integration when a cap installation needs to connect to a relining project. Whether your chimney currently has one of these brands, a builder-grade cap from a home improvement store, or no cap at all, we can recommend and install the right solution. We don’t push brands for commission. We use what works, what lasts, and what we can stand behind.
Signs You Need Chimney Cap & Crown Right Now
- Water stains on the ceiling near your fireplace. This means moisture is entering the flue, running down the liner, and finding its way into your living space. In Smithtown, we see this most often after crown cracks let rain in, or after a missing cap allows direct water entry. Left alone, it destroys drywall, rots framing, and breeds mold in wall cavities you can’t see into.
- White efflorescence staining on exterior brick below the crown. That chalky white residue is minerals left behind when water evaporates out of brick. It means water is getting in at the crown level and migrating through the masonry. The brick is absorbing moisture, expanding and contracting with temperature swings, and will eventually spall, flake, or crumble. We’ve rebuilt chimney tops in Lake Ronkonkoma where this went unaddressed for three years.
- Rust flakes in your firebox or on the damper. Your firebox and damper are not supposed to get wet. If they’re rusting, water is coming down the flue from above, almost always because the cap is missing, damaged, or improperly installed. Stainless steel dampers can handle some moisture, but cast iron dampers corrode quickly, and replacement is far more expensive than a cap.
- Animal sounds or debris in the flue. Squirrels, raccoons, and starlings consider an uncapped chimney ideal shelter. We removed a squirrel nest from a Smithtown chimney last March that had been there since October, compacted with leaves, acorns, and enough material to block half the flue. The homeowner had noticed a draft problem but hadn’t looked up the flue. A proper cap with animal-proof screening prevents this entirely.
- Visible cracks or missing chunks on the crown surface. Concrete crowns crack from thermal stress, settling, and the relentless expansion of trapped moisture. A crack that looks minor from the ground can be a quarter-inch wide at the top, directing water straight into the chimney structure. We camera-inspect every crown we can access to measure crack depth and check for internal water damage you can’t see from the roof edge.
Our Chimney Cap & Crown Process - Step by Step
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Schedule and confirm. Call (631) 814-2057 and a live person will find a time that works. We’ll ask about your chimney’s age, fuel type, and what you’ve noticed. You’ll get a confirmation call the day before with your technician’s name and arrival window. We’ll be there when we say.
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Level-2 camera inspection and documentation. Your technician arrives in uniform, lays down protective coverings, and sets up the camera system. We inspect the flue interior, the crown surface, the cap or cap mounting, and the condition of the brick and mortar below. Everything is photographed. You see the images on a tablet as we explain what we’re looking at.
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Plain-English verdict and upfront pricing. We tell you exactly what we found, what needs to happen now, what can wait, and what it costs. The price we quote is the price on the invoice. If we discover additional damage during the work, we stop and show you before proceeding. No surprises on the bill.
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Professional installation or repair. Our technicians carry the tools and common parts to complete most cap and crown jobs in a single visit. Custom caps or extensive crown rebuilds may require a return trip, but we schedule that before we leave. We use professional-grade materials, proper fasteners, and techniques that meet or exceed manufacturer specifications.
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Final documentation and 90-Day Done Right Promise. We photograph the completed work, walk you through what was done, and leave you with a written report and our guarantee. If anything isn’t right, we make it right. In writing, no arguing. That’s the Keystone Standard Russell Haines established in 1984, and it hasn’t changed.
How Much Does Chimney Cap & Crown Cost in Smithtown?
Chimney Cap & Crown cost guide: work in Smithtown runs a wide range depending on what your chimney actually needs. Here’s what we typically see in this market:
- Standard cap replacement: $280-$550, including removal of the old cap, flue inspection, and installation of a stainless steel or copper cap with proper screening and fasteners.
- Multi-flue cap installation: $650-$1,200, depending on the number of flues, overall dimensions, and whether custom fabrication is required.
- Crown coating (preventive): $450-$750, including surface prep, crack filling, and two coats of elastomeric sealant rated for freeze-thaw exposure.
- Crown repair (crack repair and partial rebuild): $800-$1,400, depending on crack extent, whether the flue tile needs re-bedding, and accessibility.
- Full crown rebuild: $1,400-$1,800, including formwork, reinforced concrete pour, proper slope and drip edge, and curing time before cap installation.
- Custom cap (fabrication and installation): $900-$2,500, varying with material (copper, stainless, or galvanized), complexity, and size.
Several factors move the price within these ranges. Accessibility matters: a steep roof in Fort Salonga or a three-story colonial in St. James requires more time and safety equipment than a ranch with a gentle pitch. The condition of what’s beneath the cap affects cost too; a cap replacement becomes a crown repair when we find spalling concrete under the old mounting flange. Material choice shifts the number: copper lasts longer and looks better but costs more than stainless, which outperforms galvanized in coastal air.
The best way to avoid overpaying is to get the inspection first and see the evidence yourself. We’ve seen Smithtown homeowners quoted $3,000 for a “crown rebuild” that was actually a $600 coating job, and we’ve seen $400 cap installations that masked $2,000 of crown damage the installer never mentioned. Our Level-2 camera inspection shows you exactly what condition your crown is in, and we tell you plainly when work can wait a season and when it can’t. Estimates are free. Call (631) 814-2057 for an exact quote based on your chimney.
Every estimate includes the inspection, photos, a written scope of work, and the final price. No add-ons, no “while we’re up there” surprises. If you’re 55 or older, or a veteran, ask about our permanent 5% discount. If you’ve got a written estimate from another company, we’ll give you a free second opinion with our camera documentation so you can compare apples to apples.
Chimney Cap & Crown Near Smithtown - Our Service Area
We cover all of Smithtown and the surrounding communities with the same single-visit capability and upfront pricing. Most calls from Chimney Cap & Crown in Smithtown proper, Chimney Cap & Crown in Commack, and Chimney Cap & Crown in Hauppauge are scheduled within a few days, and emergency water infiltration calls get priority. We also regularly service Nesconset, Ronkonkoma, Lake Ronkonkoma, Kings Park, St. James, Nissequogue, Village of the Branch, Islandia, and Fort Salonga. The salt air gets worse closer to the Sound, so we see more rusted caps in Nissequogue and Fort Salonga and more freeze-thaw crown damage in the inland elevations near Kings Park. Wherever you are in the area, the process is the same: camera inspection, plain-English verdict, upfront price, work done right.
Serving Smithtown, NY - Our Local Coverage Area
We’re based in the Smithtown area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - Chimney Cap & Crown in Smithtown
The cap is the metal cover that sits over your flue opening to block rain, animals, and debris while allowing smoke to vent. The crown is the concrete slab that covers the top of your chimney structure, shedding water away from the brick and sealing the gap between the flue tile and the chimney edge. You need both because the cap protects the flue interior and the crown protects the masonry structure; one without the other leaves your chimney vulnerable to water damage that costs far more to repair than prevention.
Most standard cap replacements and crown coatings are completed in two to four hours. Crown repairs or rebuilds may take a full day depending on the extent of damage and curing requirements. Custom cap installations require a return visit after fabrication, typically two weeks from measurement to installation. We complete most jobs in a single visit, and we’ll tell you upfront if your situation requires two trips.
A typical cap replacement in Smithtown runs $280-$550, crown coating runs $450-$750, and crown repair or rebuild ranges from $800-$1,800 depending on severity. Custom caps and multi-flue installations start around $650 and can exceed $2,500 for complex copper work. The only way to get an exact number is to inspect your specific chimney, which we do at no charge. Call (631) 814-2057 for a free estimate with photos you can see and a written price that doesn’t change.
Yes. We install, repair, and replace caps and crown materials from Olympia Chimney, Famco, and Copperfield, and we stock common sizes and parts for same-day completion. We’ve also worked with DuraFlex and HeatShield products when cap installation integrates with relining or resurfacing work. If you have a different brand or aren’t sure what you have, we can identify it during inspection and source the right replacement or repair material.
We prioritize active water infiltration calls because the damage accelerates quickly once moisture is inside your chimney structure. A live person answers our phones 24 hours a day, 7 days a week, and we’ll schedule you as soon as possible, typically within 24-48 hours for urgent situations. We don’t charge extra for after-hours scheduling; the price is the price. Call (631) 814-2057 and we’ll get you on the calendar.
Every job is backed by our 90-Day Done Right Promise: if it’s not done right, we make it right, backed in writing with no paperwork and no arguing. Beyond that, manufacturer warranties apply to the specific cap or coating materials we install, typically 10 years to lifetime for stainless steel caps depending on the product line. We register warranties on your behalf and keep records so you don’t have to track paperwork.
Clear a path to your fireplace or stove so we can access the firebox for camera insertion, and move any fragile items from the mantel in case of vibration. If you have a steep roof or limited access, let us know when you call so we bring the right ladders and safety equipment. You don’t need to be home for the entire appointment if you arrange access, but we prefer to review the camera footage with you in person so you see what we see and understand our recommendation before we proceed.
Schedule Your Chimney Cap & Crown Service in Smithtown Today
Water in your chimney doesn’t fix itself, and every season of delay adds to the repair bill. Call (631) 814-2057 now and a live person will answer, 24 hours a day. We’ll schedule your free estimate with Level-2 camera inspection, give you a written price that won’t change, and get the work done right the first time. Hearthstone Chimney Co. has served Smithtown and Long Island since 1984. We’re not going anywhere, and neither is our guarantee.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving Smithtown since 1984.