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We Can Replace Or Install Your Prefabricated Chimney Cap

Correctly Installed Chimney Cap - Sacramento CA - A to Z Chimney Services

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

Chimney Storm Collar Diagram - Sacramento CA - A to Z Chimney Services

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 info@atozscreens.com 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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This was my first experience having my chimney cleaned and I wasn’t sure quite what to expect! I was very impressed with how careful the technician was to ensure that nothing got on our carpet or couches using tarps and a special vacuum to filter the air and ensure no soot got into the home.

It was a good feeling when your technician started setting up and took the time to assure me he would leave my home as clean as he found it.

A to Z is definitely pro! Thanks for a professionally clean chimney, and a totally clean house!

~ Tim Sullivan, Antelope, CA
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