Level 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed
Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.
Gelco Chimney Cap Installation: The Annapolis Owner’s Guide
Gelco chimney cap installation in Annapolis typically runs $340 to $680 installed, depending on the cap series and whether the flue tile needs any prep work before mounting. We stock Gelco-compatible caps and brackets on the truck, so most swaps happen in a single visit that takes about an hour to an hour and a half. The way most homeowners find out their Gelco cap has failed is simple: water starts showing up in the firebox after a hard rain, or they spot rust streaks running down the brick from the crown.

Corrine Halstead has seen enough failed caps in Annapolis to know the pattern. Salt air off the Chesapeake accelerates rust on cheaper galvanized fasteners long before the cap body fails. The cap itself might look fine from the ground. The problem is usually at the connection points, the screws, the brackets, the spots nobody looks at until water is already inside the flue.
Key takeaways:
- We install Gelco-compatible caps and carry common sizes on the truck, no second trip while parts ship.
- Written price before any work starts, per Clause 1 of the Haven Standard. You see the number before a tool comes off the truck.
- Every installation includes a photo record of the old cap, the flue condition, and the finished mount.
- The 365-Day Done Right Promise applies: if the install isn’t right, we make it right at no charge.
Which Gelco Models This Applies To
Gelco makes chimney caps across several series lines, and the compatibility gotcha is real: a Gelco cap sized for a standard clay flue tile will not seat correctly on an oval or rectangular flue without a properly matched bracket system. We routinely install three Gelco configurations in Annapolis homes: single-flue caps sized by outside flue tile dimensions, multi-flue caps that span two or more flues and mount to the crown, and top-mount damper caps that combine the cap with a cable-operated damper at the flue top.
If the original label is still readable, take a photo of it before calling us. The model number is usually stamped on the cap skirt or the mounting bracket, not the mesh body. If the label is gone, don’t guess. We measure the outside dimensions of the flue tile and the crown span before we ever order or pull a part. That measurement-first approach has kept us from selling Annapolis homeowners the wrong cap more times than we can count. This is also where the OEM-versus-aftermarket question gets answered honestly: for Gelco caps, the OEM bracket is worth keeping if it’s intact, because the bracket geometry is the part that has to match your flue exactly. Quality aftermarket caps from Olympia Chimney or Copperfield often cost 20 to 30 percent less than OEM Gelco and hold up comparably in our climate, but the bracket either fits or it doesn’t. We’ll show you both options with written pricing before you decide.
Signs Your Gelco Chimney Cap Installation Is Failing

- Water in the firebox after rain. Most often this means the cap’s seal or mounting screws have failed and water is running straight down the flue. A cap that looks intact from the ground can still leak badly at the mounting points.
- Rust streaks on the brick below the crown. In Annapolis, salt air turns cheap galvanized hardware into dust within a few seasons. Those streaks mean the fasteners are corroding and the cap is likely loose.
- The cap is visibly tilted or shifted. High winds off the Bay push on the cap’s mesh and body. A tilted Gelco cap means the bracket has loosened or the flue tile it’s clamped to is spalling, which is when the clay surface flakes away and stops holding the clamp.
- Birds or debris inside the fireplace. The mesh on a Gelco cap wears through or pulls away from the frame over time. Once there’s a gap, birds, leaves, and rain all get in. We’ve pulled nests out of Annapolis chimneys where the cap mesh looked fine from the driveway.
- Draft problems that didn’t exist before. A partially blocked or loose cap can change how the flue draws. If the fireplace has started smoking back into the room and nothing else changed, the cap is worth a look, and our camera inspection will show exactly what’s happening at the flue top.
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AfterReplacement Cost & What’s Included
For Annapolis homeowners, a Gelco-compatible chimney cap install typically lands between $340 and $680 fully installed. The range is driven by three things: the cap series and size, whether the existing bracket can be reused or needs replacement, and whether the flue tile or crown needs minor repair before the new cap can seat properly. A straightforward single-flue cap swap on a flue tile in good condition runs at the lower end. Multi-flue caps or jobs where the crown has cracked around the flue and needs patching run higher.

Every quote includes the cap, the mounting hardware, the labor, a camera check of the flue before we set anything, and the photo record when we’re done. You get a written number before work starts, never a verbal estimate that changes once the tech is on the roof. And the work carries the 365-Day Done Right Promise: if something we installed isn’t right within a year, we fix it. No argument, no re-quote, no charge.
DIY or Call Us?

If you’re comfortable walking a roof and have the cap already in hand, the basic math is a socket wrench, a tube of silicone, and an afternoon. But here’s what most Annapolis homeowners don’t expect: the old screws are seized, the flue tile has hairline cracks that need a closer look, or the cap they ordered doesn’t match the flue dimensions once they’re up close. We see all three regularly. And we’re honest about this part: if you’re not fully comfortable on a roof, this is not the job to push through. A fall off a second-story roof is a life-changing injury, not a weekend project. What we’d tell any neighbor is this: call us at (443) 274-4231. We’ll put eyes on it, give you a written price, and you’ll know exactly what you’re dealing with before you spend a dollar.
FAQs
A Gelco cap in Annapolis typically lasts 8 to 12 years, but the hardware often fails before the cap body. Salt air and freeze-thaw cycles eat fasteners first, so you may need bracket and hardware replacement while the cap itself is still serviceable.
Sometimes. If the mesh is torn but the frame and bracket are solid, a mesh replacement or minor reweld can buy a few more years. But most failures we see in Annapolis involve the mounting system, and once that’s compromised, replacement makes more sense than repairing hardware that will fail again soon.
Most Gelco cap installations take an hour to an hour and a half on site. If the crown or flue tile needs repair first, add another hour or two. We schedule the work in a single visit whenever possible.
We carry common single-flue Gelco-compatible caps and brackets on the truck for most Annapolis jobs. Unusual flue sizes or multi-flue configurations may need a special order, which we quote in writing before you commit to anything.
Call (443) 274-4231 and we’ll give you an exact quote, in writing, before any work is scheduled. Estimates are free, and we’ll show you photos of what’s actually going on up there.
Written by Corrine Halstead, Owner, Level Two Chimney Annapolis at Level Two Chimney Annapolis, serving Annapolis and nearby areas.





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