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We Can Replace Or Install Your Prefabricated Chimney Cap

Chimney cap properly installed on chimney

Newly installed chimney cap.

All prefabricated chimneys need to have a rain cap or spark arrester professionally installed on the very top of the chimney. This is an important part of any prefabricated chimney and fireplace system and should not be allowed to fall into disrepair. Left unchecked over a long period of time, rainwater often takes a toll on chimney caps. It is the most destructive element a prefabricated chimney faces. Since prefabricated fireplaces and chimneys are constructed out of thin sheet metal, rainwater can rust and destroy them in short order. In addition, rainwater infiltration can cause mold, dry rot, and sheet rock damage.

If your prefabricated chimney doesn’t have a chimney cap, or your existing chimney cap is rusted or damaged, now is the time to take care of the most basic preventative chimney maintenance tasks and have one installed. Spending a little money now on a high-quality chimney cap will save you big headaches and expenses later. A to Z Chimney Services stocks the most common sizes and types of prefabricated chimney caps and can have one installed for you quickly.

7 Good Reasons Why You Need A Chimney Cap

A chimney without a cap is like a house without a roof—a recipe for disaster. Here are some of the most compelling reasons for purchasing a chimney cap:

1. Keep destructive rainwater out of your chimney
2. Avoid expensive repairs
3. Keep dangerous sparks from escaping the chimney
4. Keep raccoons, squirrels, opossums, insects, and birds from nesting and creating a fire hazard
5. Prevent rain, leaves, bird droppings, and other debris from getting into the chimney
6. Help prevent smoking problems caused by wind-induced down drafts
7. Satisfy California building code, which requires a 3/8” spark arrester

We Also Carry Chimney Storm Collars

diagram of different chimney parts

Storm collar diagram.

In addition to a chimney cap, prefab chimneys benefit from the installation of a component called a storm collar, which works in concert with the chase cover and cap to create the tightest possible seal against water. A storm collar is a skirt of metal flashing that wraps around your chimney pipe and is located just below your chimney cap and above your chase cover. The collar deflects rainwater as it runs down the outside of your chimney pipe and sheds it onto your chase pan cover. Although your storm collar is small in size, its job is huge in importance. If your storm collar isn’t doing it’s job, destructive water leaks can cause enough rust damage to your prefabricated chimney and fireplace that the entire system will need to be torn out and replaced anew. A very extensive and expensive project indeed.

If your prefabricated fireplace has ventilation louvers above the firebox, you can determine whether or not your storm collar needs attention by shining a flashlight between the louvers. You may also want to inspect the area where the chimney pipe connects to the top of your firebox. If you see any signs indicating water has been sitting there, your storm collar probably needs attention.

Let A to Z Chimney Services check to see whether you prefab chimney is in need of any of these important parts. Make an appointment with us today by emailing us at or filling out our online appointment form.


Could you benefit from installing a top-sealing damper in your chimney? Find out by talking with our experts in all kinds of chimney and fireplace installations.

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I just wanted to thank you for coming to our rescue the other day. I just purchased a new home and a new washer and dryer to go with it. Understandibly, I was a very confused when my dryer suddenly began taking two or three cycles in order to dry my clothes! To my surprise, the appliance repairman who came out told me that my dryer was just fine, but that my dryer vent needed to be cleaned out! I had never heard of such a thing! Mercifully, he referred me to you guys and everything went better from there.

Your technician discovered that a bird had decided to make its nest in my vent! A lot of effort and tons of nesting material later, my vent was finally unclogged!

Thanks again for your valiant efforts! The guy that came to my house was fantastic and took everything in stride, and didn’t charge me any extra despite the fact that my vent took longer than normal to clean! I’ll be sure to tell everyone where they can get great service having the dryer vent cleaned!

~ Denise Gordon, Roseville, CA
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