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.
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After
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AfterHeatShield Chimney Cap Installation: The Hempstead Owner’s Guide
We stock and install HeatShield-compatible chimney caps throughout Hempstead, with most installs running $285 to $520 depending on flue size and cap model. If your cap is rusted through, missing, or letting rain into the flue, we can usually get it swapped the same week. Most Hempstead homeowners discover the failure after a storm, when water starts streaking the brick below the crown or dripping into the firebox. The cap is the first line of defense against Nassau County weather, and when it goes, the flue takes the hit.
Key Takeaways:
- We keep HeatShield-compatible caps in common sizes on the truck, so the swap is often one visit.
- Installed pricing is quoted before work begins; the number we give you is the number on the invoice.
- A failed cap in Hempstead’s wet winters leads to liner damage fast, which is a far bigger bill than the cap itself.
Which HeatShield Models This Applies To
HeatShield caps are sized by flue dimension, not by a single model number, which trips up a lot of homeowners trying to order one online. The caps fit standard square, rectangular, and round flues, typically 8×8, 8×13, 13×13, and round diameters from 6 to 12 inches. If you have the original HeatShield documentation, great. If you don’t, we measure the flue opening on site and match the cap to the exact outside dimension, because an undersized cap rattles in the wind and an oversized one lets snow blow straight in.
The key compatibility gotcha with HeatShield is the mounting style. Some of their caps are designed to slip over the flue tile, others bolt to the crown. If your existing cap was installed over a HeatShield resurfaced flue, the flue interior is slightly narrower than factory tile, so a slip-in cap sized for the nominal dimension may not seat. We account for that by measuring the actual opening after resurfacing, not the original tile spec. On the OEM versus aftermarket question: HeatShield-branded caps are solid stainless and built to last, but we also install quality aftermarket equivalents from DuraFlex and Gelco that match or beat the OEM spec at a lower price. We’ll tell you which makes sense for your chimney. Top Hat Chimney is an independent service provider, not affiliated with HeatShield, so our recommendation is based on what holds up on Long Island rooftops, not what one manufacturer’s catalog says.
Signs Your HeatShield Chimney Cap Installation Is Failing
- Water streaks on the brick below the crown. This is the classic first sign. The cap’s seams or mounting points have opened up and rain is running down the outside of the flue instead of being shed away from it. In Hempstead, where we get driven rain off the Atlantic, this shows up fast once a seam fails.
- Rust staining on the cap or the flue tile. Stainless caps shouldn’t rust, but cheaper aftermarket caps or original caps nearing the end of their life will start showing orange streaking. Once rust blooms at a weld point, the cap’s days are numbered.
- Debris inside the firebox. Small twigs, leaves, or granules of old cap screen showing up in the firebox means the screen has torn or the cap has shifted. Birds and squirrels in Hempstead find those openings within a week.
- A whistling or humming sound on windy days. A cap that’s loosened from its mounting will vibrate in the wind. It’s annoying, but it’s also a warning: the next storm may take the cap off entirely and leave your flue wide open.
- Draft problems that weren’t there before. If the fire is suddenly sluggish or smoke backs into the room, a damaged or partially blocked cap may be restricting airflow. Your flue doesn’t care how the fire looks. It cares how it breathes.
Replacement Cost & What’s Included
In Hempstead, expect to pay $285 to $520 for a HeatShield-compatible chimney cap installation, parts and labor included. The range comes down to three things: flue dimensions (a 13×13 cap costs more than an 8×8), whether the existing mounting bolts are salvageable or need to be re-anchored in fresh concrete, and whether you want a standard single-flue cap or a sturdier multi-flue model. We give you an exact price before a single tool comes off the truck, and the number you hear on the phone is the number on the invoice.
Every installation includes removal of the old cap, inspection of the flue top and crown, installation of the new cap with proper anchoring, and a photo of the finished work you can keep for your records. The work is backed by our 90-Day Done Right Promise: if it’s not done right, one call brings Wendell and his crew back at no additional cost. If the crown itself is cracked during inspection, we’ll tell you, show you the camera footage, and quote that separately. Nothing gets recommended without evidence you can see.
DIY or Call Us?
What you can safely do from the ground is check the obvious: rust visible from the yard, a cap that’s tilted, or debris collecting around the crown. What you shouldn’t do is climb up there with a drill and a replacement cap from a big-box store. Hempstead roofs run steep on older homes near Hofstra, and a fall from a wet shingle or loose flashing is a life-changing injury over a $300 part. We also see DIY cap installs where the homeowner didn’t anchor through the crown properly, and the first nor’easter sent the new cap through a neighbor’s windshield.
If you’ve got a failing HeatShield cap, call us at (516) 963-1068. We’ll come out, measure the flue, tell you straight what you need and what you don’t. If it doesn’t need doing, I’ll tell you.
FAQs
A quality stainless cap installed correctly will last 12 to 18 years in Nassau County’s salt air and freeze-thaw cycles, while galvanized or painted caps often fail within 5 to 7 years. If you’re near the water on the south side of Hempstead, expect the shorter end of that range. Call (516) 963-1068 and we’ll assess whether yours can be saved or needs replacement.
Sometimes, if the damage is limited to a torn screen or a single broken weld point on an otherwise solid stainless cap. But most caps we see in Hempstead have corrosion at multiple seams by the time they leak, and spot-repairing them costs nearly as much as a new cap. We’ll show you the camera footage and let you decide.
Most HeatShield-compatible cap installations in Hempstead take 45 to 90 minutes from ladder up to cleanup. If the crown needs patching around the mounting points, add another 30 to 45 minutes. We give you a real arrival window and call if it slips.
We keep common HeatShield-compatible sizes on the truck: 8×8, 8×13, 13×13, and round 6 through 12 inch. If your flue is an odd dimension, we source it from a local supplier, usually within two business days. We also carry aftermarket equivalents from DuraFlex and Gelco that match the OEM spec at a lower price, and we’ll tell you honestly which is the better value for your chimney.
Get Your HeatShield Cap Replaced Right
If your cap is failing, don’t wait for the next storm to do more damage. Call Top Hat Chimney at (516) 963-1068 for a free estimate on HeatShield-compatible chimney cap installation in Hempstead. Wendell Pike grew up in San Diego, learned the trade at Southwestern College in Chula Vista, and has spent the better part of two decades serving Hempstead and the surrounding area, including plenty of calls near Hofstra University where older homes and older chimneys tend to go hand in hand. A live person answers every call, around the clock, and it may well be Wendell himself picking up. We serve Hempstead and nearby Nassau County communities with upfront pricing, background-checked uniformed sweeps, and a 90-Day Done Right Promise in writing on every job. Seniors and veterans always get 10% off, and there’s no trip charge if you’re inside our service county.
Written by Wendell Pike, Owner, Top Hat Chimney at Top Hat Chimney, serving Hempstead and nearby areas.