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 properly sealed metal cover is essential to protect prefabricated chimney systems from the destructive effects of rain, snow, and corrosion. Standard sheet metal caps often rust or deform, allowing water to seep into the chase structure and cause significant internal damage. At Chicagoland Fireplace & Chimney Restoration, we fabricate and install custom-built covers designed for structural strength, watertight performance, and architectural refinement. Each unit is measured to exact dimensions, fitted with reinforced seams, and built to perform in every season.
Each cover is engineered for performance and longevity. Heavy-gauge copper and stainless steel materials are cut, folded, and reinforced to prevent bending, warping, or rusting. The raised center design and sloped drip edges ensure proper drainage, eliminating water pooling that leads to leaks and decay. Every seam is professionally sealed, providing a clean, smooth finish that enhances both appearance and strength.
Our covers are available in multiple premium materials, including copper, stainless steel, and powder-coated steel. Copper develops a rich patina that adds timeless elegance, while stainless steel delivers modern appeal with zero corrosion risk. Regardless of the material, each piece is custom-fitted to your chase for a precise and secure installation that endures Chicago’s harsh weather conditions.
A compromised chase top can lead to rot, rust, and insulation breakdown inside the chimney housing. Our custom-fitted covers eliminate these risks by sealing out moisture, debris, and pests. Designed with raised flue collars and integrated drip edges, each unit provides maximum coverage to stop leaks and extend your system’s lifespan—protecting your investment and your home’s structure.
Our team conducts detailed on-site measurements before fabrication to ensure a perfect fit. During installation, we secure every cover with precision fasteners and verify all seals for watertight performance. Each project concludes with a full inspection, confirming that your system is protected, ventilated, and ready for long-term use.
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.

Discover the icy brilliance of 1/4" Azuria Reflective Fire Glass. Perfect for gas fire pits and fireplaces, it delivers clean-burning elegance with shimmering blue accents.

Discover the rugged beauty of Arizona Juniper Gas Logs. Ideal for creating a rustic, natural look in your fireplace with realistic bark textures and organic shapes.

Add timeless warmth and sophistication with 1/4" Bronze Fire Glass from Chicagoland Fireplace & Chimney Restoration. Heat-resistant, eco-friendly, and ideal for indoor or outdoor fire features.

Hot Series Gas Logs deliver intense flame, radiant heat, and modern design. Perfect for homeowners seeking high-performance, vent-free or vented fireplace options.

Explore 1/4" Cobalt Reflective Fire Glass—vivid, durable, and designed to amplify flame brilliance with rich color and mirrored shine for indoor and outdoor gas fire features.

The Wellington Chimney Cover blends structural protection with architectural detail. Designed to shield your chimney while adding a distinguished finishing touch to your home.

The Luxemburg Chimney Cover blends symmetry, strength, and timeless style. Crafted for architectural refinement and chimney protection in all seasons.

Control airflow and energy loss with a Universal Damper Kit made from 304 stainless steel. Professionally installed by Chicagoland Fireplace & Chimney Restoration for long-term performance and precision draft control.

Defend your chimney from heavy rain and harsh weather with the Monsoon Chimney Cap, custom-fabricated and installed by Chicagoland Fireplace & Chimney Restoration for long-term durability and superior performance.

Enhance your home’s curb appeal and protect your chimney with a Custom Copper Hip Chimney Cap, professionally crafted and installed by Chicagoland Fireplace & Chimney Restoration’s experts.

Create a lifelike wood-burning experience with Charred Rustic Oak Gas Logs from Chicagoland Fireplace & Chimney Restoration. Hand-detailed oak logs, glowing embers, and durable construction for long-term performance.

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.