Chimney Chase Cover

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Custom Chase Covers for Prefabricated Chimneys

from above. A properly fitted, high-quality chase cover keeps water, debris, and animals out of your chimney system while preventing rust and corrosion. At Chimney Scientists, we specialize in custom stainless steel chase cover installation across Greater Philadelphia and the Poconos. Our team delivers precision measurements, durable materials, and expert workmanship to keep your system safe and dry for years to come.

Keep Your Prefabricated Chimney Protected With a Quality Chase Cover

Prefabricated chimneys are often simple metal chimneys with a chase surrounding them. The chase is designed to protect the chimney flue and metal piping components, but it still leaves an opening at the top where rain, snow, sleet, leaves, and other debris can enter and cause damage. That’s why you need a quality chase cover.

Much like a chimney crown, the chase cover helps keep moisture away from the top of the flue, preventing water damage in your chimney and home. Your prefabricated chimney should have come with a chase cover, but oftentimes, stock chase cov

How Do I Know If My Chase Cover Needs to Be Replaced?

There are several signs that your chase cover may be damaged and in need of replacement. Most homeowners notice rust or staining on the chimney chase or side of the house. This is a sign that the chase cover has begun to deteriorate—the staining is caused by rusting metal.

Some homeowners may notice a chimney leak. A chase cover that has been damaged or is not properly fitted will allow water into the chimney, resulting in water in the flue or firebox, a musty or dank smell in the chimney, or even water damage to walls and ceilings around the chimney.

Custom Chase Covers

We will custom build a new stainless steel chase cover for your prefabricated chimney. This process yields a chase cover specially designed and fitted for your home, minimizing the chance of leaks. In addition to making sure your chase cover perfectly fits your chimney, we also offer chase covers in a wide variety of colors and styles. This allows you to find the perfect chase cover to blend in with your home and neighborhood’s existing style.

Installation Details

Summary: 316ti stainless steel custom-made chase cover up to 36″ long (SM). The whole process will take two visits with two technicians onsite, totaling 3–5 man-hours.

Day 1:

Two technicians arrive and safely access all four sides of your chimney to take 11 measurements.
Measurements are sent to our chase cover manufacturer in New York.
After 5–8 business days (depending on seasonal demand), the custom-made chase cover arrives and is inventoried before being loaded for installation.
Additional pieces such as storm collars are stocked on our trucks at no extra cost, in case replacements are needed during installation.

Day 2:

Two technicians return to remove the chimney cap(s), storm collar(s), and old chase cover.
The wood trim below the chase cover may require shimming or replacement due to rot. This is done at no additional cost to you.
Once the top surface is level, the new chase cover is installed.
Existing storm collar and cap are reinstalled.
Your new chase cover carries a lifetime warranty and requires no future maintenance.

What Makes Chase Covers So Expensive?

We get this question a lot. Here are the four main reasons:

1. Customization

A generic chimney cap is mass-produced and costs a fraction of what a custom-made chase cover does. Chase covers are larger, made to order, and usually individually shipped, significantly increasing their material costs. Many customers and even home inspectors confuse chase covers with chimney caps, but a chase cover is actually the entire top of your chimney, not just the vent covering.

2. Two Visits, Two Technicians

The process requires two site visits by two trained technicians: one for measuring and one for the installation. This ensures a perfect fit and proper sealing but increases labor hours.

3. Manufacturing Hiccups

Custom orders can encounter occasional delays or require adjustments based on in-field conditions, particularly during busy seasons.

4. Unforeseen Issues

Once your old chase cover is removed, we often discover rot or water damage to the trim beneath. These must be addressed before installing the new cover—and while we do this at no added cost, it adds time and complexity.

Protect Your Chimney With a Custom-Fit Chase Cover

Don’t let a failing chase cover lead to expensive water damage, rusted flues, or chimney deterioration. Chimney Scientists offers long-lasting, low-maintenance stainless steel chase covers custom-built to fit your system exactly. With expert installation and a lifetime warranty, you’ll have peace of mind knowing your prefabricated chimney is protected from the top down.

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5-Star Results
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beachboy

20:29 08 Oct 25

Fantastic job! We had an old wood burning fireplace converted to gas with a gas stove insert. It’s a one stop shop they did absolutely everything ran new gas line installed electric new stove and stainless chimney liner. Quick clean and efficient and everyone was nice.

Susan T.

16:38 03 Oct 25

We didn't know what was wrong with our chimney, but could see moisture was damaging the plaster in the ceiling around it. We consulted a roofer who said the issue was the flashing (on the roof just above the room where damage was visible). New flashing had absolutely no effect. Talked to another roofer who admitted he was stumped and recommended a company called "Chimney Scientists". Best recommendation EVER. The Chimney Scientist inspector recognized the problem immediately: unfortunate repairs in the 1980s to this chimney built in 1900 used a modern type of mortar (Portand cement) that trapped moisture inside our chimney, forcing water out through brick (and then into surrounding ceiling plaster). This past week Chimney Scientists rebuilt our chimney in the top floor of our house and up through the roof using historic lime-based mortar. They found reclaimed brick that closely matches our original brick for the exposed chimney inside the house. Above the roof, they used new brick that will resist the elements for a long, long time. End result: a gorgeous, healthy chimney inside and out. During the job, they provided thorough protection around their work area. At the end of the job, they cleaned up to perfection. All along the way, they cheerfully provided crystal clear and detailed explanations. Maybe best of all: they LISTEN. Whenever we had any concerns or questions, we were heard and any needed adjustments were made right away. The name Chimney Scientists isn't just great branding: these guys really DO understand the science behind chimneys and they take great pride in skillfully solving chimney problems. 10 stars out of 5.

Eric G.

14:44 03 Oct 25

Chimney Scientists do a great job. Antonio is a great service person—super friendly and professional.

Robert G.

19:09 02 Oct 25

Professional, personable service.

Nadine K.

15:59 25 Sep 25

We have used Chimney Scientists several times for chimney inspections, cleaning, and masonry repair and weather proofing. They have always been professional and have done an excellent job.