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 Sweep Across Greenwich
A chimney sweep in Greenwich, CT typically costs between $229 and $389 for a standard single-flue cleaning, with multi-flue estate homes running $589 to $1,200 depending on flue count and creosote stage. We’re Alcott Chimney Sweep, and we’ve been serving Fairfield County homeowners since 2002. If you live in the backcountry, Belle Haven, Cos Cob, or Old Greenwich, call (336) 863-3889 for a written quote before any work begins.
Here’s what makes Greenwich different from every town around it: a single service call on Round Hill Road or North Street can involve four to eight separate flues. That’s not an exaggeration. The pre-war Tudors, Georgians, and Colonial Revivals that define this town were built with multiple hearths, and most of those original 1920s-to-1940s chimneys have never been relined. Our Chimney Sweep team plans for that before we even pull into your driveway. A Greenwich job is rarely a one-flue job.
Why Alcott Chimney Sweep Is Greenwich’s Preferred Chimney Sweep Company
We built our reputation in Greenwich on one thing: certainty. Every technician who walks up your front steps has passed a background check and identity verification under what we call the Threshold Standard. You’ll know the technician’s name and see their photo before we arrive. They’ll show a photo ID badge at the door. Every time, no exceptions. For homeowners who are often alone, for parents with young children, for older residents who want to know exactly who’s coming: this is not an optional upgrade. It’s how we’ve operated since 2002.
Ruben Castellano runs Alcott Chimney Sweep with a simple rule: if we can’t show you the problem, we don’t ask you to pay for the fix. That means camera inspections come standard when we recommend repairs. You see exactly what we see. Written price before work starts. Written guarantee on every repair. If a repair fails within the coverage period, the second visit is free. That’s the 365-Day Done Right Promise, and it’s a full year of accountability on every completed job.
Gas Fireplace Cleaning in Greenwich
Gas Fireplace Repair - Greenwich and cleaning is a service we handle constantly, because so many of this town’s older homes have converted original wood-burning fireboxes to gas logs. The job involves removing the glass, cleaning the burner and pilot assembly, vacuuming the firebox, checking the venting, and inspecting the damper and smoke chamber for leaks. A gas fireplace cleaning in Greenwich runs $179 to $289 per unit.
What We Check on Gas Conversions
In Cos Cob and Byram cape-style homes, gas conversion inserts often leave the original damper and smoke chamber unsealed. That lets acidic flue gases condense and eat mortar from the inside out. We check for this every time, because the damage is invisible until it’s advanced.
When to Schedule
If you smell a faint sulfur or soot odor near your gas fireplace, or the flames burn mostly yellow instead of blue, call us. These are early signs of venting problems, and they’re cheaper to fix now than in January.
Chimney Maintenance in Greenwich
Chimney Maintenance in Greenwich means something different here than it does ten miles up the Merritt. Our crew works on multi-flue masonry stacks, clay-tile-lined original chimneys, and gas appliance venting that shares a single stack. A standard maintenance visit, which includes a sweep, a visual inspection of the exterior stack and crown, and a damper check, runs $229 to $389 for one flue. Multi-flue properties are quoted per stack after a walkthrough.
Annual Sweep and Inspection
We recommend an annual sweep for any wood-burning fireplace used more than a few weekends per season. Homes with multiple fireplaces, or weekend-only burning patterns, need the same schedule. The creosote buildup curve in Greenwich is steeper than most owners expect.
Creosote and Soot Removal
Creosote is the tar-like combustion byproduct that causes chimney fires. In Greenwich’s backcountry estates, weekend-only burning produces heavy second-degree creosote per cord burned. Soot is lighter and brushes out; creosote often requires rotary tools and chemical treatment. We’ll show you the camera footage either way.
Trusted Brands We Service in Greenwich
We work with the brands chimney professionals actually specify. DuraFlex liner systems. HeatShield resurfacing and flue repair. Copperfield and Famco components for dampers, caps, and chase covers. We stock common replacement parts for these systems, which means less waiting on a second trip for Greenwich homeowners. When a backcountry estate needs a HeatShield repair on a cracked clay tile liner, we do it in one visit. When a coastal Old Greenwich stack needs a replacement Famco cap after salt erosion, we’re not ordering it from a catalog and making you wait two weeks. We carry it.
Common Chimney Sweep Problems We See in Greenwich Homes
- Weekend-only creosote buildup in backcountry estates. Stop-start combustion is the single most common cause of second-degree creosote in homes from Conyers Farm to Round Hill. Owners assume cold chimneys midweek mean light use, but the opposite is true. Heavier deposits form per cord burned.
- Salt-spalling on coastal stacks in Old Greenwich and Riverside. Long Island Sound exposure drives salt-laden air into brick crowns and mortar joints. We see open spalling at twice the rate of inland Fairfield County towns. The damage looks cosmetic, but it’s a water pathway into the flue.
- Unlined or clay-tile-lined original chimneys in pre-war homes. Homes built between 1920 and 1940 often lack modern stainless liners. Clay tile cracks under freeze-thaw cycles, and the gaps become a chimney fire risk. Most Greenwich estate owners don’t know their chimney has never been upgraded.
- Unsealed dampers and smoke chambers after gas conversions. In mid-century capes in Cos Cob and Byram, gas log installs frequently skipped sealing the original damper. Acidic flue gas condensate then eats the mortar from the inside out. We find this on about a third of gas-converted fireplaces we inspect in Greenwich.
Pricing for Chimney Sweep in Greenwich, CT
A standard single-flue sweep in Greenwich runs $229 to $389. That covers a Level 1 inspection, brushing, and cleanup. Add a second flue and you’re in the $389 to $589 range. Large estate homes with four to eight flues run $589 to $1,200 depending on creosote stage, liner access, and whether we’re repairing or capping. Gas fireplace cleaning runs $179 to $289 per unit. Every quote is written and in your hands before work starts. Call (336) 863-3889 for a free estimate. We don’t upsell from the truck.
We Also Serve Cities Near Greenwich
Our crews serve Chimney Sweep in Greenwich and the surrounding shoreline towns. That includes Cos Cob, Riverside, Old Greenwich, and Stamford. Dispatch and scheduling are coordinated from the brand’s Hartford office, but the technicians working in your neighborhood live and work in Fairfield County.
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 About Chimney Sweep in Greenwich
Every year, and ideally every year at the same time. Multi-flue systems share a single masonry stack, which means a crack in one flue affects every flue above it. If you have four to eight fireplaces, you need an annual Level 2 inspection with a camera. That’s the only way to see the interior of each clay tile or unlined flue. Call (336) 863-3889 to schedule, and we’ll walk the site first.
Gas fireplaces don’t produce creosote, but they do produce acidic flue gas condensate, and they need the venting, damper, and smoke chamber checked for corrosion and leaks. A gas fireplace cleaning in Greenwich runs $179 to $289 per unit. If you’ve converted from wood to gas and never had the original chimney inspected, there’s a good chance the old damper is still unsealed. We check that on every gas service call.
Second-degree creosote looks like black, bubbly, flaky tar that’s hardened but still flammable. This is the stage where chimney fire risk turns serious. Weekend-only burning in backcountry homes produces it faster than steady nightly use because the firebox cycles hot and cold repeatedly instead of maintaining a consistent draft. If you burn on weekends and leave the chimney cold during the week, do not skip an annual sweep.
Because salt-laden air from Long Island Sound attacks the brick crown and mortar joints at a much faster rate. Coastal spalling is not a cosmetic issue. Once the mortar opens, water gets into the stack, and the freeze-thaw cycle you get even in mild Greenwich winters does structural damage. Those coastal neighborhoods need more frequent crown and cap checks than inland backcountry homes do. A replacement crown or cap can be quoted on site.
Sometimes, but glazed third-degree creosote usually requires mechanical removal and chemical treatment, and in some cases a liner repair with a product like HeatShield. We will not brush through a glazed chimney and call it done. You’ll get camera footage of the flue before and after. If the liner is compromised, you’ll know exactly why, and you’ll get a written quote. Call (336) 863-3889 and we’ll give you a straight answer.
Written by Ruben Castellano, Owner at Alcott Chimney Sweep, serving Greenwich, CT since 2002.