Chimney Cap & Crown in Greenwich - Same-Day Service, Done Right the First Time

Fast, Reliable Chimney Cap & Crown Across Greenwich

Chimney cap and crown repair in Greenwich typically runs $340-$1,200 depending on whether you need a simple crown coating or full custom cap fabrication for a multi-flue estate stack. Most appointments are scheduled within 48 hours, and our Chimney Cap & Crown team carries the materials to finish common repairs in a single visit. Call (855) 950-3861 - a live person answers, 24 hours a day.

Call (855) 950-3861

We’ve been working on Greenwich chimneys since 1984. Frank Calucci started this company with the belief that a sweep should explain what he found, show you the photos, and stand behind the repair in writing. That hasn’t changed in 42 years. We know the difference between a Riverside colonial built in 1935 and a back-country estate from 1910, and we know that each needs a different approach to cap and crown work.

Why Hearthstone Chimney Co. of New York City Is Greenwich’s Preferred Chimney Cap & Crown Company

Greenwich homeowners don’t call us because we’re the cheapest. They call because their last contractor installed a stock cap that didn’t fit their multi-flue stack, or because they found moss growing through a cracked crown after a nor’easter and nobody else would answer the phone on a Sunday. We answer every call with a live person, 24/7. No voicemail, no callback queue.

Our technicians are background-checked, uniformed, and trained to document every inspection with photos and a plain-English verdict. The 90-Day Done Right Promise governs everything we do: Krafted right, Every time, Your home first, Standing behind it. If it’s not right, we come back. In writing, no arguing.

We serve all of Greenwich - 06830, 06831, 06836 - from Old Greenwich to Cos Cob to the back country north of the Merritt Parkway. Most jobs are completed in a single visit with upfront pricing. The number on the estimate is the number on the invoice.

Our Chimney Cap & Crown Services in Greenwich

Crown Repair

Original early-20th-century concrete crowns on Greenwich estate chimneys spall and separate after decades of freeze-thaw cycles from nor’easter moisture. This is less common in inland towns like Stamford, where the temperature swings are drier and less extreme. On a property off Lake Avenue in the back country, we found a decaying crown on a 1920s Tudor serving three flues - one gas, two dormant wood-burning - where moss had penetrated cracks, causing mortar spalling. We replaced it with a custom copper cap from Copperfield to match the historic look and installed a multi-flue cap to prevent animal intrusion.

Crown repair in Greenwich typically runs $340-$680 for minor crack sealing and coating, or $850-$1,200 when the concrete crown must be rebuilt entirely. We use professional-grade crown coatings from HeatShield that flex with temperature changes rather than cracking again next winter.

Multi-Flue Cap Installation

Multi-flue stacks with mixed-use flues - gas and dormant wood - are common in Greenwich’s pre-1940 housing stock. These often have oversized or poorly fitted caps that allow raccoons and chimney swifts to nest in unused flues. A properly sized multi-flue cap covers all flues in one unit, eliminating gaps where animals enter while preserving proper draft for active appliances.

Multi-flue cap installation in Greenwich ranges from $480-$920 depending on flue count, cap material (galvanized, stainless, or copper), and whether staging or lift equipment is needed for tall estate stacks. We fabricate custom solutions on-site when standard sizes don’t fit legacy construction.

Custom Cap Fabrication

Back-country estates north of the Merritt Parkway, built between 1900 and 1940, often have chimney configurations that don’t match modern standard sizes. Flue spacing, chase width, and architectural details vary widely. We measure on-site and fabricate custom caps from Copperfield and Famco materials that fit precisely and complement the home’s historic character.

Custom caps in Greenwich start around $720 and can exceed $1,500 for large copper installations on estate properties. The investment protects flues that would otherwise require repeated service calls from ill-fitting stock products.

Cap Replacement

Standard cap replacement is straightforward until it isn’t. On a 1950s colonial in Riverside, the original cap may have rusted through after 70 years of salt-air exposure from Long Island Sound. But the flue tile beneath may also be deteriorated, or the crown may be cracked underneath the cap. We remove the old cap, inspect what’s beneath, and replace only what’s needed. No surprises on the bill.

Cap replacement in Greenwich runs $280-$560 for standard stainless or galvanized units, or $580-$950 when crown repair is required beneath the cap.

Crown Coating

Mortar wash and crown coating fail prematurely on tall, exposed estate stacks because Greenwich’s wet climate and salt air from Long Island Sound accelerate deterioration. We apply professional-grade flexible coatings from HeatShield that bond to existing concrete, fill hairline cracks, and shed water properly. This is preventive maintenance that extends crown life by years, not months.

Crown coating in Greenwich costs $340-$520 and takes approximately two hours to complete, with 24-hour cure time before exposure to rain.

Trusted Brands We Service in Greenwich

We work exclusively with professional-grade materials - no builder-grade substitutes. For cap and crown work in Greenwich, we stock and install products from Gelco, Olympia Chimney, Famco, and Copperfield. These are the brands that professional sweeps have relied on for decades, and we keep common sizes and materials on our trucks to avoid delays. A custom copper cap from Copperfield for a back-country estate, or a multi-flue unit from Famco for a Cos Cob colonial, can often be measured, fabricated, and installed in the same appointment. Fast turnaround matters when a cracked crown is letting water into your flue every time it rains.

Common Chimney Cap & Crown Problems We See in Greenwich Homes

• Freeze-thaw crown spalling on back-country estates. Original concrete crowns from the 1920s-1940s absorb nor’easter moisture, then crack as temperatures drop below freezing. The surface flakes off, exposing aggregate, and water penetrates to the flue liner below. We see this regularly on properties north of the Merritt Parkway where chimneys stand exposed above the tree line.
• Animal intrusion in dormant wood-burning flues. Multi-flue stacks with one gas flue active and two wood-burning flues sealed but uncapped become ideal nesting sites for chimney swifts and raccoons. The animals don’t care that the fireplace hasn’t been used since 1987. A properly fitted multi-flue cap closes every entry point.
• Moss and efflorescence after coastal storms. The combination of persistent moisture, salt air from Long Island Sound, and organic debris on tall estate stacks creates conditions where moss colonizes crown cracks and white mineral efflorescence blooms on exterior masonry. Both indicate water penetration that will accelerate deterioration if not addressed.
• Gas insert conversions with incompatible caps. Many Greenwich homeowners have converted original wood-burning fireplaces to gas inserts without updating the cap. The original cap may be too large, creating draft problems, or may lack proper clearance for the new venting configuration. A different cap is often required for safe, efficient operation.

Pricing for Chimney Cap & Crown in Greenwich, NY

We Also Serve Cities Near Greenwich

Our Chimney Cap & Crown in Greenwich service extends to neighboring communities including Port Chester, Rye Brook, Rye, and Harrison. The same live-answer phone line, the same 90-Day Done Right Promise, the same background-checked technicians. If you’re in Fairfield County or lower Westchester and need cap or crown work, call (855) 950-3861.

FAQs - Chimney Cap & Crown in Greenwich