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.
Fast, Reliable Chimney Cap & Crown Across North Andover
A chimney cap and crown repair in North Andover typically runs between $300 and $900 for most homes, with multi-flue custom caps on older colonials reaching $1,400 to $2,200 when the crown needs a full rebuild. The job is rarely an emergency, but it’s also not one to put off for years: a failed crown lets water into the brick, and water is what turns a $600 repair into a $6,000 rebuild. We’ve been working on North Andover chimneys long enough to know which ones will hold for another season and which ones won’t. Call (978) 724-7935 and we’ll give you a straight answer, not a pressure pitch.
Why Top Hat Chimney Is North Andover’s Preferred Chimney Cap & Crown Company
We’re the local crew homeowners call after a national franchise tells them the crown is “fine” and the flue is “probably okay.” Wendell Pike founded Top Hat Chimney in 1999, and he still answers the phone when you call. He’s been inside more North Andover flues than he can count, including the three-flue colonial stacks on Salem Street and the mid-century ranches off Great Pond Road. You’ll get his name and license number on every quote, and the 90-Day Done Right Promise in writing: if it’s not right, one call brings him back at no charge.
North Andover homeowners also appreciate that we answer the phone with a live person. Not a voicemail box, not a call center. When you call at 7 a.m. or 11 p.m., someone picks up, and it’s often Wendell himself. We schedule a real arrival window, and if that window slips, we call you before you’re left wondering. Our techs are background-checked and arrive in uniform, and the price you get on the phone is the price on the invoice. No surprises at the door. That matters in a town like North Andover, where word travels fast and a bad job follows a contractor for years.
We’ve built our reputation one chimney at a time across North Andover. From the Old Center Historic District out to the subdivisions near Stevens-Coolidge Place, homeowners know we show up when we say we will and tell them honestly when a cap can wait and when it can’t. That’s the kind of trust you don’t get from a franchise that rotated in last spring.
Our Chimney Cap & Crown Services in North Andover
Every Chimney Cap & Crown job we do starts with a look at the whole chimney, because a cap installed on a failing crown is money wasted. Here’s what we handle most often around North Andover.
Cap Installation
A properly sized cap keeps rain, snow, birds, and squirrels out of your flue. In North Andover, where nor’easters drive rain horizontally through the Merrimack Valley, a full-coverage cap with a proper mesh screen is the difference between a dry flue and a rusted damper. We install standard single-flue caps fast, and on older homes with multiple terminations we measure each one so the cap actually fits, not just “close enough.”

Cap Replacement
Rusted-through caps are common on North Andover homes, especially where wood stoves vent hot, acidic exhaust. A cap with holes in it isn’t doing anything. We replace worn caps and upgrade undersized ones, and we’ll show you the old cap when we’re done so you can see exactly what failed. If the cap is still serviceable, we’ll tell you that instead of selling you a new one.

Crown Repair
This is the big one for North Andover’s older homes. The original hand-formed lime mortar crowns on 18th- and 19th-century colonials crack under repeated freeze-thaw, and once water gets behind the brick, spalling starts. We cut out failed mortar, rebuild the crown with a proper wash so water runs away from the flue, and finish with a flexible sealant that moves with the brick instead of cracking against it. On newer cast-concrete crowns with hairline cracks, we can often coat and seal rather than replace, which keeps the bill down and the chimney dry.

Crown Coating
When a crown is structurally sound but showing surface cracks, a coating buys years of life at a fraction of a rebuild price. We use commercial-grade crown sealer and apply it only after the surface is clean and dry, never over spalling brick. In North Andover’s freeze-thaw climate, a coated crown stops the small cracks from becoming something worse.

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 North Andover
We install and service products from DuraFlex, Olympia Chimney, and Copperfield, and we keep common parts on the truck so most North Andover jobs are done in one visit. DuraFlex liners are our go-to for flue relining on the town’s older masonry chimneys, Olympia caps cover single-flue and multi-flue applications, and Copperfield builds the custom multi-flue caps we often spec for the Old Center’s colonial stacks. Using factory-matched parts means the warranty holds and the fit is right. Call (978) 724-7935 and we’ll tell you which one fits your chimney and why.
Common Chimney Cap & Crown Problems We See in North Andover Homes
- Failed lime mortar crowns on 200-year-old colonials. The Old Center’s original brick stacks were capped with hand-formed lime mortar. Fifty years of Merrimack Valley freeze-thaw has reduced many to crumbling powder, letting water run straight into the brick and flue. Crown repair on these homes almost always pairs with a new multi-flue cap.
- Undersized flex liners on mid-century ranch inserts. Homes near Lake Cochichewick often have wood stoves vented into oversized masonry flues with liners that were never sized or extended correctly. The cap gets installed wrong for a liner, leaving the annular space open, and flue gases pull back into the chase. We see this flagged constantly on North Andover real estate inspections.
- Rusted or missing caps on homes going to market. North Andover’s high-end real estate market means most sales trigger a Level 2 inspection, and a rusted-through cap is one of the first things flagged. Sellers routinely call us with a “chimney letter” in hand, needing written clearance before closing. A missing cap is a small fix that can hold up a big closing.
- Spalled flue terminations on multi-flue stacks. On older North Andover homes with two or three flues in one chimney, the terminations take a beating. Repeated wetting and freezing chips away the clay tile from the top down. We rebuild the terminations, install a proper multi-flue cap, and often drop a liner while we’re there to meet current code.
Pricing for Chimney Cap & Crown in North Andover, MA
North Andover pricing for cap and crown work runs like this: a standard single-flue stainless cap replacement is $250 to $450, including the cap and labor. A crown seam repair or small patch runs $150 to $350. A full crown rebuild with proper mortar and waterproofing runs $650 to $1,200 for a typical single-flue chimney. A multi-flue custom cap on a colonial, installed with a rebuilt crown, lands between $1,400 and $2,200. If your home inspector flagged a liner that’s not fully extended, add $300 to $600 for the liner correction. These are honest ranges, not bait. When we quote, you get a line-item price before a single tool comes off the truck. Seniors and veterans always get 10% off, and any repair over $200 takes $40 off automatically. Call (978) 724-7935 for an exact quote. Estimates are free, and there’s no trip charge for calls in the county.
How North Andover’s Climate Works Against Your Crown
North Andover sits in the Merrimack Valley corridor, which funnels nor’easters straight through town and delivers repeated hard freeze-thaw cycles from November through March. That’s brutal on old brick and lime mortar. Water seeps into a hairline crown crack, freezes, expands, and widens the crack. Repeat that forty nights a year for twenty years and you’ve got a crown that’s lost its wash entirely, channeling water down the flue and behind the brick. The town’s heavily wooded lots, especially around the Lake Cochichewick watershed, add another variable: many North Andover homeowners burn green wood cut from their own land. Green wood burns cooler and dirtier, which builds stage-two and stage-three creosote faster and clogs mesh screens on caps more quickly than seasoned wood. If you burn green wood, plan on an annual cap inspection and screen cleaning, not just a sweep.
We Also Serve Cities Near North Andover
Our crews cover North Andover and the surrounding towns, so if you’re in Boxford, Groveland, Georgetown, or Haverhill, the same North Andover crew can handle your cap and crown work. Call the same number, talk to the same people, and get the same straight pricing. Wendell and his crew are familiar with the chimneys across all of Essex County’s older housing stock.
Serving North Andover, MA - Our Local Coverage Area
We’re based in the North Andover 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 North Andover
You can cap just the active flue, but you shouldn’t leave the other two open. Uncapped unused flues still let rain, snow, birds, and squirrels into the chimney, and that water migrates into the brick and mortar, damaging the whole stack. On North Andover’s older colonials, the unused flues are often unlined and pulling moisture straight into the chimney’s core. A multi-flue cap covers all three terminations for one installed price, usually between $800 and $1,400 depending on the chimney’s footprint. That’s cheaper than repairing water damage later. Call (978) 724-7935 and we’ll measure the stack and give you exact numbers, or you can cap just the active flue for $250 to $450 and we’ll seal the unused ones with a temporary screen until you decide.
A cap doesn’t reduce creosote production directly, but it does three things that help. First, a properly sized cap improves draft slightly by reducing wind downdrafts, which means the fire burns hotter and produces less stage-two creosote. Second, the mesh screen on a cap catches sparks and embers that green wood throws off in greater numbers, reducing the risk of roof fires on North Andover’s wooded lots. Third, a cap keeps rain out of the flue, and wet creosote is far more corrosive and adhesive than dry creosote. If you burn green wood near Lake Cochichewick, plan on annual cap and screen cleaning along with your sweep. Call (978) 724-7935 to schedule a sweep and cap inspection together.
Yes, and that’s work we’ve done on Salem Street and throughout the Old Center Historic District. We remove only the failed crown material, not the brick below it, and we use lime-based mortar mixed to match the original for any repointing needed at the top courses. Then we form a new crown with a proper overhang and drip edge, using a mix appropriate for the chimney’s age. The brick stays intact. Our crew capped a three-flue colonial on Salem Street, rebuilt the spalling lime mortar crown, and dropped a DuraFlex liner down the gas flue, and the seller got a clean Level 2 inspection letter two weeks before closing. Call us and we’ll come look at your crown before you make any decisions.
It does, and the two issues are usually joined. When a flex liner isn’t extended fully to the chimney’s top, the cap gets installed incorrectly for a liner, leaving the annular space between the liner and the masonry flue open. That space pulls flue gases and creosote-laden air back down into the chase, which is exactly what your inspector flagged. The fix is extending the liner to the termination and installing a liner-top cap that seals the annular space while letting the liner vent. On North Andover’s mid-century ranches, that’s typically a $400 to $700 correction. Call (978) 724-7935 and we’ll verify the liner and cap as one job.
Yes. A lined flue still gets wet without a cap, and a wet lined flue deteriorates faster than a dry one. Rain drives straight down, pooling at the liner’s transition and rusting out the damper and firebox components. Birds and squirrels also enter uncapped flues regardless of liner type. For a lined flue that’s never used, we often recommend a simple single-flue cap with a fine mesh screen, $250 to $400 installed, to keep water and animals out. It’s cheap insurance on a North Andover chimney that can’t be replaced for that price. Call (978) 724-7935 and we’ll put one on for you.
Written by Wendell Pike, Owner at Top Hat Chimney, serving North Andover and surrounding communities since 1999.
Ready to get your chimney cap or crown fixed? Call (978) 724-7935 today. Wendell or a live member of the team will answer, give you honest pricing, and schedule a time that works for you. Free estimates, no trip charge in the county, and the 90-Day Done Right Promise on every job.





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