HY-C Blog

Who Is HY-C: Custom Chimney Caps

Written by Kyla Pehr | Aug 18, 2026, 2:00:01 PM

TL;DR: Custom chimney caps are a small slice of the market, but a high-margin one for distributors. From Band-Around to Skirt Style to Big Top, HY-C manufactures caps to fit the 5% to 10% of chimneys that don't take a standard cap. Plus, ordering is simple.

HY-C Company makes custom chimney caps. And while they're not for everyone, they could be for you and your customers.

Most jobs your customers bring you, whether they're chimney sweeps, wildlife techs, or roofers, will use a standard cap. But every technician eventually runs into the flue that doesn't fit a standard size, and that's exactly where custom caps earn their keep.

For nearly 80 years, HY-C has been a trusted chimney cap manufacturer in the USA. What started with hand-made aluminum chimney covers in a six-car St. Louis garage is still at the core of what we do today: Protecting homes from weather, wildlife, and everything in between. Now, we're expanding our lineup so every chimney — no matter the size or shape — has a cap that fits.

Here's what you need to know about stocking, quoting, and ordering custom caps through HY-C. Plus, a look at our new order form.

When Do Homeowners Typically Look for Custom Caps?

Custom caps get called for in two situations:

  • The chimney falls outside standard size ranges. Single-flue and multi-flue caps are both built to a set of predictable dimensions, and most flues and crowns land within them. When one doesn't, a standard cap simply won't seat correctly
  • The homeowner wants an aesthetic upgrade. Some customers want a specific material, finish, or profile that isn't available in a standard size for their chimney

There aren't many reasons that fall outside of these two, especially since custom caps share the same core construction and protective features as the standard caps that make up 90% to 95% of chimneys out there. The difference is fit, not function.

That still leaves the 5% to 10% of chimneys that don't take a standard cap. For those jobs, a custom cap is usually the best option your customer has, the alternative being an uncapped chimney exposed to water, wildlife, and debris.

What Custom Cap Styles Does HY-C Have?

HY-C manufactures three custom chimney cap styles: Band-Around-Brick, Skirt Style, and Big Top. Here's what you need to know about each.

Band-Around Model

The Band-Around style is named for the metal band that wraps around the top row of chimney brick and clamps down at the corners. Because the band supplies the clamping force, installers don't need to drill into the masonry to mount it, which is a selling point for customers who prefer not to drill into their brick.

Band-Around caps are available in aluminum and stainless steel, giving you a wide enough range to fit almost any single- or multi-flue chimney that falls outside standard sizing.

Skirt Style Model

The Skirt Style cap bolts directly into the top row of chimney brick, and its metal skirt adds an extra layer of protection against rain, snow, wind, and other weather that wears down a chimney over time.

This style comes in aluminum, stainless steel, and copper. Copper carries a higher price point than the other two materials, but it's a strong upsell for homeowners chasing a premium look.

Big Top Model

Big Top caps are built for multi-flue chimneys where several flues terminate in one place. The large, single hood covers the whole group instead of capping each flue individually.

Big Top is available in galvanized steel, stainless steel, and copper, so you can offer a good-better-best lineup depending on your customer's budget.

What Does the Ordering Process Look Like?

Our goal is to make ordering a custom chimney cap quick and easy.

1. Choose a model

2. Measure the chimney (NOT the flue)

Give us the chimney dimensions. Measure as accurately as possible.

  • Dimensions 1-4 stay the same for every model
  • Always measure from the top row of brick

Dimension 5 depends on the model:

  • Band-Around and Skirt Style: Measure from the top of the brick to the top of the flue
  • Big Top Model: Measure from the top of the crown to the top of the flue

If you measure 5 from the top of the brick for Big Top, we’ll adjust it for you (usually by subtracting 3-4 inches). Just let us know.

3. Choose a material

Select one: Aluminum, stainless steel, copper, or black galvannealed steel.

4. Calculate price

We’ll calculate the price based on your order form. Then you can place the order for your customer.

Since each cap is custom-made, orders cannot be refunded. Please double-check all measurements before submitting.

5. Submit your order

We can take submissions by email, fax, phone, or EDI.

Please let HY-C customer service know how you’d like to send in the order. This helps us process your order faster.

How Long Is the Turnaround for Custom Caps at HY-C?

Once an order reaches our custom caps department, maximum lead times run around 7 business days, and caps are often finished sooner. That's a fast enough turnaround to quote confidently on jobs where a homeowner or contractor is waiting on a fix, without the guesswork that comes with sourcing custom metalwork elsewhere.

What Else Should You Know About Our Custom Caps?

A few details worth keeping in your back pocket when you're quoting or ordering:

  • Regional mesh requirements apply. Some regions — including states with stricter spark-arrestor codes — require ⅝" mesh instead of the standard ¾". Confirm local code before finalizing a custom order, since mesh size is one of the factors built into the price
  • Pricing depends on style, material, and dimensions. Because every custom cap is built to spec, prices vary widely
  • Caps ship unassembled. Installers will need to put the cap together on-site, so make sure your install crews (or your customers' contractors) know what to expect
  • We can ship to you or drop-ship to your customer. Either way, HY-C invoices you for the manufacturing cost, and you handle billing on your end
  • Custom orders can't be refunded. Since each cap is built to the dimensions submitted on the order form, it's worth double-checking measurements before you send an order in
  • Custom caps won't be your highest-volume product, but they let you say yes to the jobs your competitors have to turn away, and they come with the margin to match

Plus, to ensure proper venting, a minimum of 6" is required between the top of the tallest flue tile and the cap cover. Ensure your customers are aware of this before installation.

Ready to Start Selling?

Become an HY-C distributor and offer chimney caps your customers can trust. Ready to order custom chimney caps? Fill out our custom chimney cap form and reach out to orders@hy-c.com to get started.