Chimney Cap & Crown in Mendham - Made to Fit, Priced in Writing

Fast, Reliable Chimney Cap & Crown Across Mendham

Chimney cap and crown work in Mendham typically runs $340-$1,200 depending on whether we’re fitting a standard single-flue cap or pouring a new overhanging crown on a multi-flue masonry stack. Most Mendham appointments are booked within a week, and our crews carry the common cap sizes and crown-forming materials needed for the borough’s mix of historic masonry and estate-style homes.

Call (908) 589-8342

We’ve been driving to Mendham for over 42 years, from the winding lanes off Tempe Wick Road to the wooded ridges above Bernardsville. Dispatch and scheduling are coordinated from our New York City office, but the trucks that roll up your driveway are stocked for Morris County conditions: cold northwest winds, multi-acre lots with multiple working fireplaces, and the particular headache of estate homes where hand-laid 19th-century chimneys sit beside stone-faced factory-built units that look identical from the ground. Our Chimney Cap & Crown team knows the difference before we set a ladder. Call (908) 589-8342 to book a free estimate.

Why Hearthstone Chimney Co. Is Mendham’s Preferred Chimney Cap & Crown Company

Mendham homeowners call us back because we photograph what we find and explain it in plain English before any work starts. No pressure, no mystery. The 90-Day Done Right Promise covers every cap and crown job in writing - if it’s not right, we come back with no arguing and no paperwork shuffle.

Our technicians are background-checked, uniformed, and trained to spot what chains miss: a factory-built fireplace dressed in custom stone that needs a UL-listed cap, not a masonry crown pour. Most jobs finish in a single visit because we stock professional-grade materials from Copperfield, DuraFlex, and HeatShield rather than ordering after we arrive.

A live person answers our phones 24 hours a day, 7 days a week. Not a callback queue. Not an app. When you own a home with multiple fireplaces and active wood-burning seasons, that matters.

Our Chimney Cap & Crown Services in Mendham

Cap Installation

New cap installation in Mendham ranges from $340-$580 for a standard single-flue galvanized or stainless cap with animal screening. On estate properties off Route 24 or along the ridgelines above Chester, we regularly install multi-flue caps spanning two or three flues from a single base - a necessity when northwest winds drive downdraft across broad roofs with multiple working fireplaces. We measure on-site, fabricate or stock to fit, and set the cap with proper overhang and storm collars to shed water away from the crown edge.

Cap Replacement

Replacing a rusted, wind-damaged, or improperly sized cap in Mendham runs $290-$520. The most common replacement we see is the single-flue cap that was never adequate for the job: either it sat too low and let blowing rain soak the crown, or it was never designed for the flue count on the roof. At a property near Mendham’s historic borough center last season, we pulled off three mismatched caps that previous owners had installed piecemeal over decades and replaced them with one coordinated Gelco multi-flue system. The smoke chamber dried out. The staining on the firebox wall stopped.

Crown Repair

Crown repair in Mendham typically costs $480-$890. The original hand-laid brick crowns on 18th- and 19th-century borough-center homes spall and crack after Morris County’s sub-20°F freeze-thaw cycles. Meltwater seeps in, freezes, and pushes the crown apart. We cut back to sound concrete, form a new overhanging pour with proper drip edges, and seal with a flexible crown coating rated for northern New Jersey temperature swings. Done right, a repaired crown outlasts the patch jobs that fail in two winters.

Crown Coating

Preventive crown coating on a structurally sound crown runs $340-$520. We use professional-grade flexible sealers - HeatShield and Copperfield formulations - that bridge hairline cracks and shed water without trapping moisture underneath. This is practical maintenance on a 1990s estate home where the crown is sound but showing early surface deterioration. We won’t sell you a coating if the crown is too far gone. Photos you can see, a plain-English verdict.

Multi-Flue Cap

Multi-flue cap installation is our most frequent Mendham estate job, running $680-$1,120. One cap covers two or more flues from a single mounting base, eliminating the gaps between separate caps where wind-driven rain and downdraft enter. We size for proper draft, set the screen height to code, and ensure the cap doesn’t interfere with adjacent flue termination clearances. On hillside properties where ridge-top winds accelerate, a multi-flue cap with proper skirt height can be the difference between a fireplace that draws cleanly and one that pulses smoke into the great room on January nights.

Custom Cap

Custom copper or stainless caps for architectural chimneys on Mendham’s larger properties start around $890 and run to $1,200 or more depending on fabrication complexity. We’ve fitted custom caps to hand-laid stone chimneys on estate homes where standard catalog sizes would look wrong and perform worse. Copper weathers to a dark patina that suits older masonry; stainless stays bright on contemporary builds. Either way, the cap is measured, fabricated, and installed to shed water and survive Morris County wind loads.

Trusted Brands We Service in Mendham

We stock and install professional-grade materials from DuraFlex, HeatShield, Gelco, and Copperfield - no builder-grade substitutes that rust through in three seasons. For Mendham customers, this means faster turnaround because we’re not waiting on a warehouse shipment for a standard cap or crown-forming mix. When we inspect your chimney, we know whether your factory-built unit needs a DuraFlex-listed termination cap or your masonry crown needs HeatShield’s flexible coating system. The right part, the first time. A square deal: no surprises on the bill.

Common Chimney Cap & Crown Problems We See in Mendham Homes

• Spalled crowns on historic borough homes. Original hand-laid brick crowns from the 1800s crack along the north and west edges where freeze-thaw hits hardest. Water runs down the stack, freezes between the flue liner and masonry, and opens gaps that let combustion gases leak into wall cavities. We catch this with a Level-2 camera inspection before the crown fails completely.
• Factory-built fireplaces mistaken for masonry. Mendham’s 1980s-90s estate expansions routinely wrapped UL-listed factory-built fireplaces behind custom stone. Owners and some technicians probe them as masonry, install wrong caps, apply crown coating to metal chase tops, and damage proprietary metal liners with cleaning tools that were never meant for thin-wall stainless. We identify the system type before touching it.
• Uncapped flues on multi-flue roofs. Estate homes with two or three working fireplaces often have only one flue capped, or caps that don’t cover properly. Ridge-top northwest winds drive straight down the open flue, pushing smoke and creosote-laden air through the damper into living spaces. The fix is almost always a properly sized multi-flue cap with adequate skirt height.
• Backdrafting on cold-wind nights. Mendham’s position in the Morris County hills funnels cold northwest winds across exposed roofs. A cap that’s too low, missing, or poorly screened creates pressure imbalances that pull air down the flue even when the fireplace is cold. Homeowners smell smoke in the great room and assume the damper is leaking. Usually it’s a cap problem.

Pricing for Chimney Cap & Crown in Mendham, NJ

We Also Serve Cities Near Mendham

Our crews work throughout Morris County and Somerset County borders, including Bernardsville, Chester, Bedminster, and Warren. The same trucks stocked for Mendham’s estate chimneys serve these neighboring towns with the same 90-Day Done Right Promise and live-answer scheduling.

FAQs - Chimney Cap & Crown in Mendham