Chimney Cap Installation in Nassau County
The chimney cap is the single most cost-effective piece of chimney protection you can install. It sits at the top of the flue and does three jobs: keeps rain and snow out of the flue liner, blocks birds and animals from nesting, and contains sparks from wood fires. Nassau County's coastal weather means an uncapped chimney can receive significant rain intrusion from nor'easters and heavy coastal storms. A standard stainless steel cap lasts 20+ years and pays for itself in prevented damage within two seasons.
Stainless steel caps — corrosion-resistant, 20+ year lifespan
Sized precisely to your flue opening
Mesh sides block birds, squirrels, and raccoons
Spark arrestor mesh included on wood-burning flues
How Chimney Cap Installation Works
Measure the flue opening
We measure the exact flue dimensions — single or multi-flue — to select the correct cap size. An undersized cap leaves gaps; an oversized cap won't seat properly.
Select the right cap
For Nassau County homes, stainless steel caps are standard — they resist the salt air corrosion that destroys galvanized caps within a few years, especially on South Shore properties.
Install and secure the cap
The cap is set over the flue tile and mechanically fastened or screwed down. We verify it's level, properly seated, and secure against wind.
Inspect the crown
While on the roof, we inspect the chimney crown for cracking. A failing crown is the most common companion problem to a missing or damaged cap.
What Customers Say
Maria Wróbel
New Hyde Park • August 2025
“Quick cap installation. No more rain smell from the fireplace.”
★★★★★Manuel Morales
Carle Place • March 2025
“Cap blew off in the last storm. Came out within the week, measured correctly, installed stainless.”
★★★★★Mrs. Leah Markowitz
Syosset • February 2025
“Had a galvanized cap that was rusting through. Replaced with stainless.”
★★★★★Frequently Asked Questions
How much does a chimney cap cost in Nassau County?
DME Maintenance installs standard stainless steel chimney caps starting at $285 in Nassau County. Multi-flue caps and custom sizes are priced separately — call 516-690-7471.
Does every chimney need a cap?
Yes. An uncapped chimney allows rain, snow, birds, and animals directly into your flue. Water in a chimney liner accelerates deterioration dramatically. A cap is the most cost-effective chimney protection available.
How long does a chimney cap last?
A stainless steel chimney cap properly installed lasts 20+ years in Nassau County's coastal environment. DME Maintenance only installs stainless — never galvanized, which rusts in 5–10 years near the coast. Pair with chimney waterproofing for full protection.
What size chimney cap do I need?
Cap sizing depends on your flue tile outside dimensions and whether you have a single or multi-flue chimney. An incorrectly sized cap — too small or too large — creates gaps that defeat the purpose. DME Maintenance measures on-site and selects the correct cap for your specific chimney.
How long does a stainless steel cap last?
A quality stainless steel chimney cap properly installed should last 20+ years in Nassau County — including South Shore homes with aggressive salt air exposure. Galvanized caps typically rust through in 3-7 years on the South Shore. Stainless costs more upfront but is the only practical choice for coastal homes.
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Nassau County Pricing Guide
| Service | Starting Price |
|---|---|
| Chimney Cleaning & Sweep | $185–$299 |
| Chimney Inspection (Level 1) | $185+ |
| Gas Chimney Cleaning | $185 |
| Oil Chimney Cleaning | $220 |
| Wood Fireplace Chimney Sweep | $275+ |
| Gas Fireplace Cleaning | $195+ |
| Wood Stove Cleaning | $299+ |
| Pellet Stove Cleaning | $299+ |
| Chimney Blockage Removal | Free estimate |
| Chimney Repair | Free estimate |
| Chimney Cap Installation | $285+ |
| Chimney Crown Repair | $435+ |
| Chimney Chase Cover | Free estimate |
| Chimney Pointing | $660+ |
| Chimney Waterproofing (ChimSaver) | Free estimate |
| Prefab Chimney Service | Free estimate |
| Stainless Steel Chimney Liner | $1,750+ |
| Level 2 Inspection (Home Sale) | Free estimate |
| Emergency Chimney Service | Free estimate |
| Chimney Damper (Top-Sealing) | $1,100+ |
| Dryer Vent Cleaning | $165+ |
| Chimney Flashing Repair | Free estimate |
| Carbon Monoxide Safety Inspection | Free estimate |
| Smoke Problem Diagnosis | Free estimate |
| Chimney Odor Diagnosis | Free estimate |
| Chimney Water Leak Repair | Free estimate |
| Fall Chimney Cleaning | $185+ |
| Chimney Service Cost Guide | $165–$1,750+ |
| Power Washing | $195+ |
| Oil-to-Gas Chimney Conversion | $1,750+ |
| Chimney Rebuild | $1,320+ |
| Animals in Chimney | $285+ |
| Real Estate Agent Inspections | Free estimate |
Prices are starting rates. Free on-site estimates for all repair work. Call 516-690-7471.
Chimney Cap Nassau County NY | Installed From $285 | Same Week — Free On-Site Estimate
Same-week appointments • Written inspection report • Nassau License #H0101570000