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.
Before
After
Before
After
Before
AfterFast, Reliable Chimney Cap & Crown Across Centennial
A chimney crown that is cracked or a cap that is rusted through is not a cosmetic problem in Centennial. It is how water gets into your flue, how draft reverses during a Chinook, and how a $400 repair becomes a $4,000 rebuild. We replace, repair, and coat caps and crowns across Centennial every week, and we show you the camera footage before we touch anything. Call (980) 580-8641 for a written price, no guessing.
Why Emberly Chimney Cleaners Is Centennial’s Preferred Chimney Cap & Crown Company
Centennial homeowners call us because we do not do flashlight inspections. Every visit includes a camera down the flue, a documented photo record, and a written scope before work starts. That practice has been our default since 2009, and it became Clause 4 of the Haven Standard. When we tell you your crown needs coating or your cap needs replacement, you see the exact footage we saw. No “trust us.” You check it yourself.
Our techs know the Foxridge and Willow Creek subdivisions, the Piney Creek cul-de-sacs, and the tract homes along E-470 where original builders put wood-burning fireplaces in every living room. We know that a 1984 zero-clearance fireplace and a 1992 masonry chimney fail differently, and we price repairs accordingly. Corrine Halstead, who leads our Centennial work, has reviewed thousands of camera scans from this exact housing stock. She will not recommend liner replacement on a chimney that only needs a new cap, and she will not sign off on a crown patch when the freeze-thaw has already compromised the flue beneath it.
Our crews are background-checked and uniformed. Your named tech texts when they are on the way. And if the work is not done right, the 365-Day Done Right Promise says we make it right. That is the same standard we have held since 2009, across more than 38,000 inspections and cleanings.
Key Takeaways
- Centennial freeze-thaw cycles and Chinook wind pressure cause cap and crown failures faster than in neighboring Aurora or Denver.
- Camera evidence comes standard. You see what we see before approving anything.
- Written price, written scope, written warranty. Before any work starts.
- Free second opinion on any competitor’s written estimate.
Our Chimney Cap & Crown Services in Centennial
Cap Installation
A new cap keeps rain, snow, birds, and embers out of the flue. In Centennial, the more pressing issue is wind. Chinook events push warm downslope air over the Front Range, and without a properly sized cap, that pressure change can reverse draft and shove furnace exhaust back into the house. We size caps to the flue and the fireplace, not whatever is on the truck. Most cap installations in Centennial run $280 to $540, including the cap, hardware, and installation.
Cap Replacement
Rusted rain shields, warped lids, mesh that has separated from the frame: these are what we find on 30-year-old Centennial chimneys. Beetle-kill pine burned in zero-clearance fireplaces burns hot and sticky, and the creosote it leaves behind corrodes cap seams faster than normal seasonal wood. Replacing a standard single-flue cap in Centennial typically runs $320 to $620. Multi-flue and custom caps run higher. We will show you the old cap and the corrosion before we replace it.
Crown Repair
The mortar crown is the horizontal surface at the top of a masonry chimney. In Centennial, that crown endures some of the most aggressive freeze-thaw cycling in the metro area. Water in a hairline crack freezes, expands, and spalls the mortar. Left alone, the crack widens, water reaches the flue tile, and the liner begins to shed pieces into the smoke chamber. Crown repair in Centennial generally runs $450 to $900, depending on how much crown material needs to be cut out and re-formed. We use proper crown mix with a drip edge, not standard brick mortar.
Crown Coating
When the crown is intact but porous or lightly spalled, we coat it. We use Gelco crown sealer, which is built for exactly the kind of repeated freeze-thaw cycles Centennial dishes out from October through April. The coating fills surface voids, sheds water, and adds years to an existing crown before a full tear-out is needed. Coating a crown in Centennial typically costs $390 to $650, including surface prep and sealing the flue joint. We only recommend coating after the camera confirms the flue beneath is sound, because sealing a crown over a failing liner just hides the problem.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
BeforeAfterTrusted Brands We Service in Centennial
We install and repair caps from Gelco, Olympia Chimney, Famco, and Copperfield. These are not whatever came from the hardware store. We use them because we know how they hold up to Centennial’s weather: Galvalume and stainless that do not pit under beetle-kill pine creosote, mesh that does not pull free in a 70-mph Chinook gust, and multi-flue designs that actually fit the wide-masonry crowns common on 1980s tract homes. We keep the most common sizes stocked for Centennial jobs, so most cap replacements do not wait on a shipment.
Common Chimney Cap & Crown Problems We See in Centennial Homes
- Freeze-thaw spalling on mortar crowns. Centennial’s daily temperature swings, sometimes 50°F in a single day, push moisture into crown cracks and freeze it. The expansion breaks off chips of mortar, and those chips end up blocking the smoke chamber or sitting on the smoke shelf. This is the single most common crown issue we document on Centennial chimneys built before 1995.
- Chinook pressure swings reversing draft. Rapid barometric drops during warm downslope wind events can reverse the draft in an uncapped or poorly capped flue. Furnace exhaust that should vent upward gets pulled back down, and on unlined chimneys, that carbonized exhaust eats at the masonry and seals. A properly fitted cap with the right mesh and lid height reduces this backdraft.
- Beetle-kill pine creosote corroding caps. Homeowners who burn mountain pine brought back from weekend trips are packing flue liners with stage-2 creosote far faster than seasonal burning normally produces. That creosote burns hot and sticky, and on zero-clearance fireplaces it can warp cap rain shields beyond repair in a single winter. We now inspect these caps annually when pine is in the burning rotation.
- Clay-tile flue liners shedding shards. In masonry chimneys built in the 1970s and 1980s across Centennial, clay tile liners spall from the same freeze-thaw that damages crowns. Tile shards drop into the smoke chamber and can completely block draft. If the cap has been missing for years, the damage accelerates. This is why we camera-scan before capping an older chimney, not just visually inspect from the top.
Pricing for Chimney Cap & Crown in Centennial, CO
Cap installation in Centennial runs $280 to $540. Cap replacement runs $320 to $620 for a standard single-flue, and multi-flue caps or custom-fabricated caps run $500 to $1,100 depending on flue count and material. Crown repair runs $450 to $900, and crown coating with Gelco runs $390 to $650. What changes the price is flue size, access, whether we are working on a masonry chimney or a zero-clearance chase, and whether the camera reveals additional liner damage. We cannot fake a clean liner. If the camera shows cracked tiles, we will tell you before we cap anything. Every estimate is written before work starts. Call (980) 580-8641 and we will walk you through exactly what your chimney needs, with pricing you can hold us to.
We Also Serve Cities Near Centennial
Our Chimney Cap & Crown team works across the southern Denver metro. If you live in Denver, Aurora, Lakewood, or Thornton, we run the same camera-scan inspection and written-price process there as we do in Centennial. Dispatch and scheduling are coordinated from our Denver office, and crews serve Centennial locally. Same standard, same documentation, same 365-Day Done Right Promise.
Serving Centennial, CO - Our Local Coverage Area
We’re based in the Centennial area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Chimney Cap & Crown in Centennial
Centennial sits at the High Plains edge of the Front Range, where daily freeze-thaw cycling is more aggressive than in Parker. Water enters any micro-crack in the crown, freezes overnight, and expands. When temperatures swing 50°F in a day, which is common here, that freeze-thaw cycle repeats dozens of times each winter. Parker’s elevation and terrain moderate those swings. Your cousin’s crown is not better built; it is just not being worked as hard. If the camera scan shows no liner damage, crown coating with Gelco is usually the right fix. Call (980) 580-8641 for a written quote.
Yes. The backdraft you are describing is a pressure inversion problem. Your high-efficiency furnace vents through a flue that, during a Chinook, gets overpowered by the outside air pressure dropping faster than the flue can equalize. A properly fitted cap with the right mesh and lid design reduces this, but the real question is whether the flue itself is the problem. In older Willow Creek homes, furnaces were often vented into unlined chimneys that were never sized for that exhaust volume. The camera scan tells us which issue you have. Cap replacement alone often helps; sometimes a liner is the actual fix. Either way, you will see the evidence before we recommend anything.
Yes, and here is why. Beetle-kill pine is resinous and rarely as dry as it looks. At Centennial’s elevation, roughly 5,900 to 6,200 feet, reduced atmospheric oxygen means that pine burns less completely than it would in Denver. That incomplete combustion produces sticky, fast-building creosote, and on zero-clearance fireplaces, the heat transfer through the cap is intense. We have pulled caps off 1980s prefab units in Foxridge where the rain shield warped within two seasons of pine burning. An annual cap check takes 20 minutes and shows you whether this winter did damage. Call (980) 580-8641 to schedule.
Yes, and it is often worse if you do not use it. A fireplace that never gets used still has a flue open to the weather. A cracked crown lets water run down the flue walls year-round. That water freezes, expands, and widens the cracks. Over a few Centennial winters, the flue tiles spall, the smoke chamber fills with debris, and the masonry starts pushing apart. The crack that was $500 to repair becomes a $4,000 rebuild. If you are not burning, the crown and cap are your only defense against water. We will show you the camera footage and you can decide from there.
The real fix is not a universal-fit cap from a hardware store. It is a replacement cap sized for that specific prefab unit’s flue diameter, material matched to the heat output, and installed with a proper seal. On 1980s zero-clearance units in Centennial, the flue is often at or past its rated service life. So before we put a new cap on, we camera-scan the firebox and flue for deteriorated refractory panels or a compromised chase. In Foxridge, we replaced a cracked multi-flue cap on a 1980s masonry chimney where furnace exhaust had been vented into an unlined flue, then coated the spalling crown with Gelco after our camera confirmed no hidden damage. The cap was not the whole story, and neither is yours until we look. Call (980) 580-8641 for a free estimate.
Get Your Chimney Cap & Crown Fixed in Centennial
If your crown is spalling or your cap is rusted through, do not wait for the next freeze-thaw cycle. Every job in Centennial starts with a camera scan, a written price, and a named tech who shows up on schedule. We are the company that made photo documentation standard back in 2009, and we have done it on every job since. Call (980) 580-8641 or book a visit and get the evidence first, then decide. Estimates are free.
Written by Corrine Halstead, Owner at Emberly Chimney Cleaners, serving Centennial with camera-documented chimney inspections and repairs since 2009.
Chimney Cap & Crown in Nearby Areas