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.
Chimney Company in Derby, CT
Alcott Chimney Sweep cleans, inspects, and repairs chimneys throughout Derby, CT, with pricing that reflects the actual condition of this city’s older housing stock – not a generic flat rate. Derby is different from the coastal towns ten miles south: dense rows of late-1800s worker housing, unlined brick flues, and a valley terrain that causes persistent backdrafting all shape the work here. We’ll give you a written price before any work starts, and if a repair fails, the second visit is free. Call (336) 863-3889 and a live person answers – no voicemail, no callback queue.
Why Derby Homes Are Different
Most Derby chimneys were built before liners existed. The two-families and triple-deckers that line streets from Birmingham to Sentinel Hill were originally fitted for coal-burning furnaces with wide, unlined brick flues. When those homes switched to oil mid-century, and later to gas, the flues were rarely relined to match the new fuel. That leaves an unconditioned, clay-free cavity venting a modern appliance – a setup that accelerates creosote buildup and quietly raises carbon monoxide risk.
Then there’s the terrain. Derby sits at the confluence of the Naugatuck and Housatonic Rivers, inside a narrow valley. In winter, cold air pools on the valley floor, suppressing chimney draft through temperature inversion. Hillside winds push across chimney tops in ways that produce chronic backdrafting – something our technicians hear about constantly from Derby homeowners and almost never from customers in flatter towns like Milford. That’s why we don’t treat a Derby chimney like any other chimney. The inspection has to account for draft behavior, not just masonry condition.
Our Main Derby Services
Most Derby homeowners reach out to us for two reasons: a chimney that hasn’t been cleaned in years, or a gas fireplace that stopped working. Here’s what each job involves locally.
Chimney Sweep in Derby
A standard sweep in Derby usually takes 60 to 90 minutes, but on older side streets it can run longer because of access issues: tight yards, steep stairwells, and flues that haven’t been opened in a decade. The creosote we remove here is often compounded – layered from the coal era, then the oil era, then today’s gas venting. We brush from the top down, contain the dust, and show you what came out. If we find damage during the sweep, you get a written quote before any repair work begins. Full details are on our Chimney Sweep in Derby page.

Chimney Inspection in Derby
Because so many Derby flues are original and unlined, we recommend inspection before the first fire of the season – especially if your home was converted from oil to gas at any point. We use a camera to document the flue interior, then walk you through the photos on the spot. You’ll see exactly what we see, whether that’s crumbling lime mortar joints, a cracked tile liner, or a damper that never got updated through successive fuel conversions. Nothing gets recommended without visual evidence you can review yourself. Learn more on the Chimney Inspection in Derby page.

Gas Fireplace Repair in Derby
Gas fireplaces in Derby’s older homes are often retrofits installed into former coal hearths, and the venting setups vary widely. When a unit won’t light, won’t stay lit, or smells odd when running, we diagnose the ignition system, pilot assembly, and vent path. We carry professional-grade replacement parts and service units from the major gas fireplace manufacturers. If a fix can wait safely, we tell you that plainly. If it can’t, you’ll know why before we start the work. See details on the Gas Fireplace Repair in Derby page.

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.
Brands We Service in Derby
We work with the same trade materials chimney professionals specify: HeatShield for resurfacing deteriorated flues, Gelco for water repellents and masonry treatments, and Olympia Chimney for caps and chase covers. Parts are stocked regionally, so standard repairs in Derby typically schedule within a week. You can see the full list on our brands page.
Pricing for Chimney Company in Derby, CT
| Service | Typical range in Derby |
|---|---|
| Standard chimney sweep (single flue) | $180 – $340 |
| Level 1 chimney inspection | $150 – $350 |
| Level 2 chimney inspection (camera, real estate, or after a fire) | $300 – $700 |
| Gas fireplace standard service | $150 – $400 |
| Gas fireplace repair (minor) | $200 – $600 |
| Gas fireplace repair (major) | $400 – $1,800 |
| Stainless steel chimney liner installation | $2,500 – $5,500 |
| HeatShield flue resurfacing | $3,500 – $7,000 |
| Chimney cap replacement | $300 – $900 |
| Masonry repair (spalling brick, mortar joints) | $500 – $2,500 |
Two things push Derby prices toward the upper end: flues that have never been relined often need more than a basic sweep, and tight access on older side streets adds setup time. Whatever the job, you’ll receive a written price before we begin – there are no surprise charges at the end.
Neighborhoods We Serve in Derby
Our crews work throughout Derby – from the riverfront streets in Birmingham up to the hillside homes near Sentinel Hill and the west side. Response time for most Derby jobs is two to five business days, depending on the season and access.
- Birmingham district
- Sentinel Hill
- Derby Neck
- West Derby
- East Derby
Service Area – Cities Near Derby
In addition to Derby, we serve homeowners across the lower Naugatuck Valley and nearby New Haven County towns. If you’re in Ansonia, CT, Shelton, CT, West Haven, CT, or Orange, OH, our crews cover your area directly. Dispatch and scheduling are coordinated from the brand’s Hartford office; our technicians live and work in the Derby area.
Serving Derby, CT - Our Local Coverage Area
We’re based in the Derby 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 Company in Derby
Most Derby chimney jobs are scheduled within two to five business days. We prioritize homes with active issues – smoke entering the house, gas odor, or visible masonry falling – over routine cleanings. Call (336) 863-3889 and a live person will give you a straight answer on the current calendar, not a callback promise.
Basic sweeps and inspections don’t require permits in Derby. Liner installations or significant masonry rebuilds may fall under local building code review, and we’ll tell you honestly which category your job falls into during the estimate. We don’t start structural work without the right approvals in place.
Not automatically. Many Derby flues were built for coal, converted to oil without relining, and now vent gas into an unlined brick cavity. That combination can accelerate deterioration and create carbon monoxide risk. The only way to know is a camera inspection – and we show you the footage before recommending anything. Call (336) 863-3889 for a free estimate.
What happens when you call
- 1A real person answersNo phone trees - talk to a local chimney cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Derby Customers Say
"Very respectful of my home. Took off his boots and wiped the hearth when finished."
- Carol D."Annual inspection and sweep. He used a camera to check the liner and found a cracked tile I had no idea about. Gave me a written estimate and did not push."
- Janet W."Water was leaking around the flashing. They resealed it and installed a new crown coating. Dry through two heavy rains since."
- Douglas P.





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