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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AfterFast, Reliable Chimney Cap & Crown Across Greenwich
A chimney cap and crown in Greenwich does a simple job: it keeps water, animals, and debris out of a flue that has to breathe. When the cap is missing or the crown is spalled down to bare aggregate, the damage starts at the top and works its way into the flue tile, the smoke chamber, and eventually the firebox. In a town with as many pre-war masonry chimneys as Greenwich, a failed crown is rarely a one-flue problem, it is the first sign of a multi-flue stack losing its weather seal. Wendell Pike and his crew at Top Hat Chimney have been rebuilding crowns and sizing caps on these exact chimneys since 1999, and we also offer Chimney Repair in Greenwich. If you are looking at a cracked crown or a rusted cap on a backcountry estate or a Sound-side colonial, call (475) 375-2748 and we will come look at it.
Why Top Hat Chimney Is Greenwich’s Preferred Chimney Cap & Crown Company
Ask anyone on your street. Wendell has been working Greenwich chimneys for over 29 years, long enough to know the difference between a 1920s Georgian revival chimney in backcountry and a 1960s cape in Cos Cob. The Chimney Cap & Crown work we do in Greenwich is not a template job. Each multi-flue stack has its own history of coal conversion, gas insert installation, and decades of deferred maintenance. Greenwich homeowners call us because the number they hear on the phone is the number on the invoice, and because the sweep who shows up at the door is background-checked, uniformed, and will give you a real arrival window, not a four-hour guess.
We serve Greenwich with no trip charge inside the county. Every job, from a single cap replacement in Old Greenwich to a full crown rebuild on a carriage house north of the Merritt Parkway, carries our 90-Day Done Right Promise in writing. If it is not done right, one call brings Wendell back at no additional cost.
Calls Answered by a Live Person, Around the Clock
A live person answers every call, 24/7, and it may well be Wendell himself picking up. No voicemail box, no call center, no national dispatching office routing you to a stranger. When you call about a chimney cap and crown in Greenwich, you talk to someone who knows what a CrownSaver form is and why a multi-flue cap has to be sized for the flues that are actually in use, not the ones that were bricked over in 1974.
Our Chimney Cap & Crown Services in Greenwich
Most Greenwich homes were built before modern cap and crown standards existed. The original crown was poured as a flat slab of mortar, and when that slab cracks, water gets behind the flue tile and the whole top of the chimney begins to fail. Here is the work we do most often in Greenwich, including Greenwich Chimney Cleaning & Sweep.
Cap Installation
A missing cap on a Greenwich chimney is an open invitation. Rain, leaves, squirrels, raccoons, and the occasional starling all get in. For a backcountry estate with six or eight flues, the cap situation is usually uneven: some flues active, some abandoned, some capped, some not. We install single-flue and multi-flue caps sized to the flues that remain in service, so the unused flues stop funneling water into the chimney structure.
Cap Replacement
The stainless and copper caps on Sound-side homes in Old Greenwich and Riverside take a beating from salt-laden air. What started as a $40 replacement cap from a hardware store rusts through in three seasons, and then the flue is exposed again. We replace those with correctly sized caps, and we will tell you plainly if the old cap was never the right size in the first place.
Crown Repair
A Greenwich crown that has spalled, cracked, or lost its overhang is a freeze-thaw time bomb. Water gets into the crown, freezes in January, and pops the top off the flue tile. We repair crowns with a proper overhang and drip edge, using a CrownSaver form or a custom-pitched pour, so water sheds away from the flue instead of running down it. On Gilded Age stacks with ornamental brickwork, we match the mortar color and profile so the repair does not look like a patch.
Crown Coating
When a crown is still structurally sound but porous, we seal it with a flexible crown coating that bonds to the existing concrete. This is the right call for many mid-century capes and colonials in Cos Cob where the crown has minor surface cracking but no deep spalling. Coating stops water absorption before the freeze-thaw cycle does its damage, and it costs less than a full rebuild.
Multi-Flue Cap
The original multi-flue stacks on Greenwich’s pre-war estates were built with separate clay tiles for coal-fired heat. Today, many of those flues are repurposed for gas inserts or wood stoves, and the leftover unused flues were never capped. A single multi-flue cap can cover the entire stack, but it has to be sized and fabricated for the flues that are actually active. We measure, fabricate, and install the cap, then run a camera inspection to confirm every active flue still drafts correctly.
Custom Cap
Some Greenwich chimneys do not fit a stock cap. A round flue on a 1900s fieldstone chimney, an octagonal stack on a Tudor revival, a decorative corbel that blocks a standard footprint. We build custom caps in stainless, copper, or a combination, sized to the flue and the look of the house. The goal is a cap that keeps water out without turning a period chimney into an industrial afterthought.
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.
Trusted Brands We Service in Greenwich
We install and service caps and crowns built by Famco, Olympia Chimney, and Gelco. When a Greenwich homeowner calls about a liner issue that surfaces during a cap or crown inspection, we use DuraFlex stainless liners to resleeve the original clay tile, and we can also discuss our Fireplace Services in Greenwich. We stock common cap sizes and CrownSaver forms locally, so a standard cap replacement in Greenwich is often done on the first visit. If a custom cap has to be fabricated, Wendell will give you the turnaround time before work begins, in writing.
Common Chimney Cap & Crown Problems We See in Greenwich Homes
- Salt-air spalling on Sound-side homes. In Old Greenwich and Riverside, the constant salt spray off Long Island Sound accelerates mortar and crown deterioration. Crowns lose their overhang and drip edge faster than anywhere inland, and the exposed flue tile tops start to freeze and crack every winter. These homes need more frequent crown inspection and coating than a house in the backcountry.
- Uncapped unused flues on multi-flue stacks. Gilded Age and pre-war estate chimneys often had separate clay tiles for coal, later repurposed for gas. The leftover flues were never capped, so they funnel rain, leaves, and animals directly into the chimney structure. This is the most common cause of interior spalling we find on backcountry Greenwich chimneys.
- Guest cottage and carriage house chimneys gone unseen for decades. A homeowner will call us for the main house chimney, and while we are there, Wendell will ask about the ancillary structures. More than once, a carriage house chimney on the same parcel has not been opened since the property last changed hands, and the cap is gone entirely.
- Crowned-over flues on gas-converted fireplaces. When a coal fireplace is converted to a gas insert, the original clay flue is sometimes partially bricked over and a small liner is run through the remaining opening. The old crown was never re-poured for the new configuration, so water gets in around the transition point and the chimney starts to deteriorate from the inside out.
Pricing for Chimney Cap & Crown in Greenwich, CT
A standard single-flue stainless cap replacement in Greenwich runs $175 to $350, including the cap and installation. A multi-flue cap sized and installed for a two-to-four-flue stack costs $450 to $900 depending on the footprint and whether custom fabrication is required. Crown repair, including surface prep and a proper CrownSaver form with a drip edge, runs $600 to $1,200 for a typical Greenwich chimney. Full crown rebuilds with custom pitching and mortar matching start around $1,400 and go up from there on large Gilded Age stacks. Crown coating, for a structurally sound crown with surface cracking, runs $350 to $600. Every estimate is free, and the number we give you before a single tool comes off the truck is the number on the invoice. Call (475) 375-2748 for an exact quote on your chimney.
We Also Serve Cities Near Greenwich
While this page is about Chimney Cap & Crown in Greenwich, we are also on the road in Cos Cob, Riverside, Old Greenwich, and Darien. Dispatch and scheduling are coordinated from our Hartford office, but the crews that serve Greenwich live and work in Fairfield County, and we know the roads from the Merritt to the Post Road without a map.
Serving Greenwich, CT - Our Local Coverage Area
We’re based in the Greenwich 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 Greenwich
A crown with hairline surface cracking but no loss of material can usually be coated, and that runs $350 to $600 in Greenwich. A crown that has spalled down to bare aggregate, lost its overhang, or separated from the flue tile needs a rebuild, because coating will not restore the drip edge that keeps water out. Wendell will show you the camera footage and give you a plain-English verdict, every time, no exceptions. If a coating will buy you five more years, he will say so. If it will not, he will say that too. Call (475) 375-2748 and we will tell you which one applies to your chimney.
Yes, it does. Homes within a mile of Long Island Sound in Old Greenwich and Riverside lose crown overhang and mortar joint integrity roughly twice as fast as inland homes, because salt-laden air accelerates the chemical breakdown of cementitious materials and promotes efflorescence. We see stainless caps on Sound-side homes corroding through in five to seven years when a similar cap inland would last fifteen. If you are within sight of the water, you should have the crown and cap looked at every two years, not every three or four. Call (475) 375-2748 to schedule a look.
You need a cap precisely because you never burn there. An unused flue is a vertical drainpipe that lets rain, leaves, and animals straight into the chimney structure. Rain pooling on years of old creosote creates an acidic sludge that eats mortar from the inside. On a Colonial revival in backcountry Greenwich, our tech found a carriage house chimney that hadn’t been opened since the 1980s; its crown had spalled down to bare aggregate and the original clay flue liner was cracked in three places. The cap had been gone so long that the entire flue had to be resleeved. An unused chimney is not a maintenance-free chimney. It is a chimney you have not caught up with yet.
Yes, a single multi-flue cap can cover all four flues, provided the cap is fabricated for the exact spacing of the flues that remain active. The catch is that most 1920s backcountry stacks have at least one flue that was abandoned when the house converted from coal to gas, and if that leftover flue is capped but not sealed at the top, water still gets in around the cap frame. We measure the stack, identify which flues are active with a camera inspection, and then size the cap so active flues draft correctly and unused flues are sealed. That runs $450 to $900 in Greenwich depending on footprint. Call (475) 375-2748 for a free estimate.
A deteriorating liner does not directly change the cap or crown, but it changes the urgency. If the clay tiles are cracked but still intact, a good cap and crown will stop additional water from getting in and slow the deterioration. If the liner is spalling badly enough to drop debris into the smoke chamber, a new cap will not fix that, and the chimney needs a liner before you burn again. In Greenwich, we install DuraFlex liners in these situations, often ovalized to fit past an old damper, and we will show you the camera footage so you know exactly what you are looking at. The cap and crown decision and the liner decision are two parts of the same question: what does this chimney actually need to be safe this winter? Call (475) 375-2748 and Wendell will walk you through it, estimator in hand.
Call Top Hat Chimney for Chimney Cap & Crown Service in Greenwich
If your Greenwich chimney has a missing cap, a cracked crown, or a multi-flue stack that has not been properly sized in decades, call (475) 375-2748. We will come out, look at the whole chimney, show you the camera footage, and give you a written quote before any work begins. You will likely talk to Wendell himself when you call, and once the work is done, the 90-Day Done Right Promise is in writing on your invoice. One call brings him back if anything is not right, and around here, he runs into you again on Saturday.
Written by Wendell Pike, Owner at Top Hat Chimney, serving Greenwich since 1999.