Also called a chimney topper, chimney rain cap, chimney cover, chimney shroud, or chimney surround — whatever you call it, this one is built to last.
Top Mount Cap Measuring — Add 6" to the length and width of where you want the screen to sit on the chimney top. Top Mount vs Side Mount Guide →
Available in copper, stainless steel chimney cap, Kynar aluminum, and Galvalume. Stainless steel chimney caps and stainless chimney covers are built to the same spec and dimensions as every other material — contact me to order.
Unlike store-bought caps that sit on the clay flue tile, this cap covers the entire chimney crown — protecting the masonry itself from water infiltration, freeze-thaw damage, and the creosote acid that eats mortar. Crown repair runs $500–$3,000. A full rebuild runs $10,000–$20,000. A cap that covers the crown correctly prevents all of it.
Shipping
Large caps ship via LTL freight in a custom-built, heat-treated wood crate, fully insured. I need your exact dimensions, address type (residential or commercial), and zip code before you order. Call or text (text is best) (609) 352-9840 to receive a custom freight quote. LTL freight means your order will arrive on a full-size tractor-trailer. The driver will bring the crate to the back of the truck with liftgate service — curbside delivery. You are responsible for getting it up your driveway from there. Delivery add-ons are available if needed. If your property can't accommodate a full-size freight truck or you don't have help moving the crate from the curb, I can arrange delivery add-ons for the freight company to move the crate to a designated area on or inside your property. Terminal pickup and smaller delivery vehicle options are also available. This way it arrives the way it left my shop — in perfect condition.
How to Order Full Size Caps
Select your approximate chimney width and approximate chimney length using the size selectors above. Your cap will be custom fabricated to your exact dimensions — add a minimum of 1/4" to your measurements for proper fit.
Contact me with your chimney dimensions and zip code before purchasing and I'll confirm sizing and provide an exact shipping quote. Lead time is 3–4 weeks from measurement confirmation.
Questions? Call or text: (609) 352-9840
Have a Wood-Framed Chase?
If your chimney sits on a prefab wood-framed chase, you'll need a chase cover in addition to this cap. The cap mounts on top of the chase cover — it does not have a flat bottom with pre-cut holes for your flue pipe(s). If there's currently no metal cover on your chase, you need both. Browse custom chimney chase covers →
The Custom Crown Top Vent Chimney Cap — Anodized Aluminum
The Crown Top Vent is the most architecturally assertive cap I build — a prominent stepped crown section on top, concave curved panels below, and an open vent screen that lets flue gases exhaust through the top of the cap as well as the sides. This version is anodized aluminum: the color is fused into the metal through an electrolytic process, not painted or coated on top. It holds in direct sun and weather exposure without fading, peeling, or chalking. No maintenance required.
Hand-fabricated to your exact chimney dimensions in my Berlin, NJ shop. Each cap is a one-off — cut, formed, and assembled to fit the chimney it's going on.
Anodized Finishes Available
- Matte Gold — warm, subdued tone that reads bronze in certain light
- Bronze — darker, architectural bronze finish
- Black — clean matte black, works on any roofline
- Medium Antique Copper — aged copper tone without the patina cycle
Construction Details
- Stepped crown section — the raised, tiered crown gives this cap a formal architectural profile
- Concave curved panel body — panels run from the base flange up to the crown, adding depth and shadow line to the silhouette
- Top vent screen — allows flue gases to exhaust vertically through the top of the cap in addition to the sides
- 18-gauge aluminum mesh spark screen — all four sides (stainless mesh available on request)
- Cross-brake removable lid — structural rigidity and positive water drainage; removes with a screwdriver for chimney sweeping or flue access
- Side mount skirt with drip edge — wraps the exterior of your chimney crown, no penetration through masonry
- Riveted construction with stainless color-match rivets
Installation
Side Mount: The drip edge shelf sits on the chimney crown or chase top. Fasten through the DE face into the sides of the chimney using screws, masonry pins, tapcons, or anchors suited to your chimney construction. Pre-drill the drip edge for your chosen fastener. I supply copper-clad rubber grommet screws for copper caps and color-match rubber grommet screws for Kynar, Galvalume, and stainless caps. Construction adhesive can be applied where the cap sits on the chimney top — use thick 4" beads every 4–6" rather than a continuous bead, which can trap water.
Top Mount: The flange sits on the crown or chase top. Fasten through the flange into the surface below using tapcons, screws, anchors, or construction adhesive. Any fastener penetrations through the top surface should be waterproofed. I recommend uncured EPDM rubber as a gasket between the mounting flange and the chimney top — I can supply the EPDM pieces needed. I also supply #12 copper-clad stainless steel rubber grommet screws for top mount installation; these require masonry plugs for the #12 screws. Some installers use threaded rod and anchors into masonry with stainless steel or brass washers and nuts — this allows the cap to be removed entirely from the chimney when crown maintenance is needed.
Not sure which mount type is right for your chimney? See Top Mount vs Side Mount — Which One Do You Need? or call (609) 352-9840.
Chimney cap installation tips →
About Archaic Metal
I've been fabricating custom architectural sheet metal in South Jersey since 1994 — 32 years working copper, Kynar aluminum, Galvalume, and stainless steel by hand. Every cap that leaves my shop I built myself. If you have questions about your chimney or which cap is the right fit, message me or call.
Phone: (609) 352-9840
Resources
- How to measure your chimney for a custom cap
- How much does a chimney cap cost?
- High wind chimney caps: what actually works
- Do chimney caps prevent chimney fires?
Not sure what size or style you need?
I personally review every order before I build it — send me your measurements and I'll confirm everything before fabrication starts.
Request a quote or call/text me directly: (609) 352-9840