Modular Extensions 3/4 Stainless Steel
Expand and customize your stainless steel chimney cap system with CA 5/8 Modular Extensions from Chicagoland Fireplace & Chimney Restoration. Built for precision fit, stability, and long-term performance.


A Copper Outside Mount Chimney Cap delivers exceptional performance and visual appeal, offering full-coverage protection for your chimney crown and flue system. Designed to mount along the exterior perimeter of the chimney rather than the flue opening, this cap provides a watertight seal and a bold, architectural finish. At Chicagoland Fireplace & Chimney Restoration, each cap is individually measured, hand-fabricated, and expertly installed to safeguard against moisture, debris, and animal intrusion. Built from premium copper, these caps age beautifully—developing a warm patina that enhances your home’s exterior charm over time.
Unlike standard flue-mounted caps, an outside mount design shields the entire chimney crown and top course of brickwork. This prevents water from penetrating hairline cracks, protecting mortar joints from freeze-thaw damage. The extended skirt and sloped top direct rainwater away from masonry surfaces, helping preserve the structural integrity of your chimney for decades. Whether your chimney features one flue or multiple flues, our craftsmen custom-fit each cap to ensure complete and secure coverage.
Every copper outside mount cap we produce is handcrafted using heavy-gauge copper sheets that are cut, soldered, and reinforced for exceptional durability. Each seam is sealed to prevent leaks and resist separation over time, while the sloped design encourages optimal drainage. The copper construction offers natural corrosion resistance, requiring no paint or coating to maintain its strength and beauty. As the years pass, it develops a distinguished patina that complements traditional and modern homes alike.
Proper chimney performance depends on efficient ventilation and moisture control. The outside mount cap includes screened openings designed to allow continuous airflow while keeping out leaves, birds, and small animals. The raised hip or flat-style top prevents backdrafting and ensures that exhaust gases exit freely even in high winds. This combination of form and function delivers both aesthetic value and year-round reliability.
Each copper outside mount cap is measured to your exact chimney dimensions for a precise fit. During installation, our technicians verify crown stability, flue clearances, and sealing points to create a clean, watertight attachment that lasts through Chicago’s toughest weather conditions. The finished product offers a seamless blend of durability and refinement—an upgrade that both protects and enhances your home’s exterior architecture.
Copper caps are renowned for their longevity and minimal upkeep. Unlike steel or aluminum alternatives that corrode or loosen over time, copper maintains its structural integrity for decades. Routine inspection during annual chimney maintenance is typically all that’s needed to ensure peak performance. The initial investment pays for itself through extended chimney life, fewer repairs, and unmatched curb appeal.
Get expert help from Chicagoland’s trusted chimney and masonry team. Whether you need a certified inspection, professional cleaning, or a complete restoration, our specialists deliver quality service at transparent rates.
We’ll assess your system, answer your questions, and provide honest recommendations for keeping your home safe and efficient. Fill out the form below, and our team will contact you to schedule your appointment or provide a free quote.

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Expand and customize your stainless steel chimney cap system with CA 5/8 Modular Extensions from Chicagoland Fireplace & Chimney Restoration. Built for precision fit, stability, and long-term performance.

Explore Windsor chimney pot design inspiration. These handcrafted copper pots bring architectural elegance and improved chimney draft to classic and modern homes alike.

Discover the refined look of Turretfin chimney pots. These chimney accents combine sculptural elegance with enhanced ventilation, bringing long-term value and beauty to any home.

Protect your chimney from harsh Midwest and Northeast weather with a stainless steel universal cap from Chicagoland Fireplace & Chimney Restoration. Custom-fit, corrosion-resistant, and built for year-round reliability.

Add a touch of tradition with Cape Fear Oak gas logs. Designed to provide realistic flames and lasting warmth for vented fireplaces.

Enjoy the timeless beauty of oak with Prestige Oak Gas Logs from Chicagoland Fireplace & Chimney Restoration. Expertly detailed, heat-efficient, and built for long-lasting performance.

Protect your metal chimney with an air-insulated CA 1/2 cap from Chicagoland Fireplace & Chimney Restoration. Designed for temperature stability, corrosion resistance, and long-term ventilation performance.

Bring classic Southern charm to your fireplace with Charred Southern Oak Gas Logs from Chicagoland Fireplace & Chimney Restoration. Realistic detailing, radiant heat, and long-lasting performance.

The Turretfin Chimney Cover features a steep, finial-inspired design for bold roofline accents. Offers exceptional chimney protection with dramatic architectural flair.

Transform your fireplace with Evening CrossFire Gas Logs from Chicagoland Fireplace & Chimney Restoration. Bold flame patterns, hand-painted detail, and efficient heat performance for a captivating fire experience.

Discover the beauty and function of Wellington chimney pots. These high-quality copper chimney accents inspire elegant rooftop design and improved fireplace draft efficiency.

Enjoy the light, natural beauty of Quaking Aspen Gas Logs from Chicagoland Fireplace & Chimney Restoration. Realistic design, durable materials, and efficient radiant heat for any home.

Winter can leave hidden damage in fireplace and chimney systems. Learn the spring repair signs Chicagoland homeowners should address before problems grow.
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Chicagoland Fireplace & Chimney Restoration is hiring certified chimney technicians and in-house CSR roles. Experience considered with path to certification. Apply today.

Annual chimney cleaning helps reduce creosote buildup, improve draft, and spot blockages before winter use. Professional sealing adds a vapor-permeable barrier that repels rain and snow without trapping moisture in masonry. Chicagoland freeze-thaw cycles can accelerate cracking and spalling when water gets into brick and mortar. Get a free quote from Chicagoland Fireplace & Chimney Restoration Company.