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 Cherry Hill Owner’s Guide
Gelco chimney cap installation in Cherry Hill typically runs $340-$620 for most single-flue setups, including the cap, custom fitting, and weather sealing. We stock Gelco-compatible caps in common sizes and can usually install within a few days of your call, often faster during pre-burning-season scheduling. Most Cherry Hill homeowners discover their cap has failed when water spots appear on the firebox ceiling after a driving rain, or when a neighbor mentions rust stains streaking down their brick from a cap that blew loose in a March windstorm.
Which Gelco Models This Applies To
Gelco caps fall into several product families, and the right match depends on your flue type and existing mounting hardware. The Gelco Model A and Model C series cover standard single-flue clay tile installations with flue dimensions from 8″×8″ up through 13″×13″. The Model L line handles multi-flue setups common on larger Cherry Hill colonials, particularly in neighborhoods like Barclay Farm and Cherry Hill Estates where builders spec’d dual fireplaces in the 1960s and 70s. The Gelco Ultra series uses a heavier 24-gauge stainless with a welded seam top, worth the step-up if your cap sits exposed to west-facing wind across open farmland toward Moorestown.
To identify your existing cap, check the stamped model letter on the mesh screen frame, visible from ground level with binoculars. If the stamp’s rusted over, measure the flue tile’s outside dimensions and note whether your current cap uses outside-mount legs or an inside-mount tension band. The tension-band style, common on Gelco’s older installations, often seizes after fifteen years of Cherry Hill freeze-thaw cycles. We carry both OEM Gelco caps and quality aftermarket equivalents from Copperfield and Famco that meet the same 304 stainless spec. The aftermarket route saves roughly $40-$80 on parts without sacrificing corrosion resistance, though purists restoring a historic home sometimes prefer the Gelco badge. Hearthstone Chimney Co. is an independent service provider, not affiliated with Gelco.
Signs Your Gelco Chimney Cap Is Failing
- Rust streaks running down the chimney breast. Gelco caps use 304 or 316 stainless, but the spot-welded corners on pre-2010 units trap moisture from our humid Jersey summers. Once rust bleeds through, the metal is thinning from the inside out.
- Mesh screen pulling away from the frame. The screen keeps embers and animals out; when the crimped joint loosens, squirrels have an entry point. We’ve pulled nests from Gelco caps in Cherry Hill as late as Thanksgiving.
- Cap sitting crooked or rattling in wind. The mounting legs on Model A and C series are galvanized steel, not stainless. They rust through faster than the cap itself, especially where roof runoff splashes up from clogged gutters.
- Water in the firebox after heavy rain. A properly fitted Gelco cap overhangs the flue tile by at least 1.5 inches. If the cap has shifted or the storm collar sealant has cracked, water tracks down the flue and pools on the smoke shelf.
- Visible gaps between cap and flue tile. Thermal expansion from Cherry Hill’s 100-degree summer spikes to single-digit January nights works the mounting hardware loose over seasons. A gap as narrow as a quarter-inch admits enough water to damage the flue liner below.
Replacement Cost & What’s Included
| Service Item | Typical Range in Cherry Hill |
|---|---|
| Single-flue Gelco cap (standard 304 stainless) | $180-$280 |
| Multi-flue Gelco Model L cap | $320-$480 |
| Labor, removal, and installation | $160-$240 |
| Storm collar sealant and hardware | $35-$55 |
| Level-1 safety inspection included | No charge with cap install |
Most Cherry Hill Gelco cap replacements total $340-$620 installed. The range depends on roof pitch (steeper means more time on ladders), whether the old mounting legs have seized and need cutting, and if the flue tile crown needs resealing while we’re up there. We quote the full number before booking, and that number is the number on the invoice. Every cap installation carries our 90-Day Done Right Promise in writing. If it leaks, shifts, or rattles, we come back. No paperwork to dig up, no arguing.
DIY or Call Us?
An owner can safely check whether the cap is loose with a gentle wiggle from inside the fireplace using a long broom handle, do not climb the roof. You can also verify rust streaks and screen gaps from the ground with binoculars. What you cannot safely do is remove a seized mounting leg from a 25-foot roofline or properly tension a new cap without torque-testing the fit. A poorly seated cap blows off in the next nor’easter, and a fall from a two-story colonial in Cherry Hill sends too many homeowners to Cooper University Hospital each year.
We carry Gelco-compatible caps, mounting kits, and sealant on every truck. Most Cherry Hill replacements take 45-90 minutes. Call (856) 543-2929 and we’ll confirm your model match over the phone, schedule a time that works, and show up when we say. The chimney either draws the way it should, or it does not, and we will not leave until we know which.
FAQs
A properly installed Gelco 304 stainless cap typically lasts 15-20 years in South Jersey’s climate, though the galvanized mounting legs often need replacement at year 12-15. The salt air from occasional coastal storms and our freeze-thaw winters accelerate corrosion at the welds. Call (856) 543-2929 for an exact quote, estimates are free.
Spot-welding a cracked corner or re-crimping a loose screen is possible but rarely lasts. The repair usually fails within two seasons, and you’re paying for the ladder setup twice. We recommend replacement once rust penetrates the frame or the mesh separates. Call (856) 543-2929 for an exact quote, estimates are free.
Most Gelco cap replacements take 45-90 minutes from ladder set to cleanup, assuming the flue tile crown is sound and no masonry repair is needed. Multi-flue Model L caps or steep-pitch roofs add 30-45 minutes. Call (856) 543-2929 for an exact quote, estimates are free.
We stock Gelco-compatible single-flue caps in 8″×8″ through 13″×13″ on every truck, plus common multi-flue sizes. Odd sizes or the Ultra series with custom overhangs typically arrive within two business days. Call (856) 543-2929 for an exact quote, estimates are free.
Ready to stop the leaks and rust? Call Hearthstone Chimney Co. at (856) 543-2929. A live person answers 24 hours a day, and we’ll get you scheduled for a free estimate with upfront pricing, photos you can see, and a plain-English verdict on whether your cap needs replacement now or can wait until next season. We’ve served Cherry Hill for over 42 years, and we plan to be here when your next cap wears out.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Cherry Hill and nearby areas.





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