Chimney Cap & Crown in Hillside - Measured and Fitted, One Price

Fast, Reliable Chimney Cap & Crown Across Hillside

Chimney cap and crown repair in Hillside typically runs $280-$750 depending on whether you need a standard replacement or custom fabrication for an oversized flue, and most jobs are completed in a single visit. If you’re calling from a 1950s brick ranch near 23rd Avenue, Hillside Lane, or the streets bordering Concordia Cemetery, you’re probably dealing with the exact cap and crown failure pattern we’ve fixed on hundreds of homes just like yours.

Call (888) 289-6055

We’re Hearthstone Chimney Co. of Chicago, and we’ve been driving to Hillside since 2014. Our shop is close enough that we can usually get a technician to your door the same day you call. That matters when water is pooling behind a cracked crown or a rusted cap has finally blown off during a March windstorm off the Des Plaines River valley. Call us at (888) 289-6055. A live person answers, 24 hours a day.

Why Hearthstone Chimney Co. of Chicago Is Hillside’s Preferred Chimney Cap & Crown Company

Hillside’s compact residential grid is dominated almost entirely by postwar brick ranch and Cape Cod homes built in the 1950s-early 1960s. These chimneys were originally sized for coal or oil burners and later converted to gas. The oversized masonry flues are prone to chronic condensation and accelerated liner deterioration, and at 60-70 years old, virtually every residential chimney in the village is at or past the age when spalling brick, failed mortar joints, and cracked clay tile liners become the rule rather than the exception. We know this because we’ve documented it with our Level-2 camera inspections on Hillside homes for decades.

Our Chimney Cap & Crown team has built a reputation in Hillside by treating every job like the homeowner plans to live there another thirty years. We don’t guess at sizing. We measure the flue, photograph the crown, and give you a plain-English verdict you can see for yourself. Our 90-Day Done Right Promise is in writing with no arguing. If it’s not right, we come back.

Because cemeteries occupy a large share of Hillside’s total land area, the actual residential footprint is unusually small and homogeneous. A technician can run an entire day’s worth of stops in Hillside and encounter the same conversion-era oversized flue problem on virtually every house. That concentration of local knowledge means we arrive with the right materials and the right expectations. Most jobs finish in one trip.

Calls are answered by a live person, not a callback queue. Our technicians are background-checked and uniformed. And we offer no-hassle upfront pricing, the number on the estimate is the number on the invoice.

Our Chimney Cap & Crown Services in Hillside

Custom Cap Fabrication

Standard caps don’t fit Hillside’s oversized flues. The original coal-burner chimneys on your 1950s ranch or Cape Cod were built with flue openings of 8×12 inches or larger, then never properly resized when the furnace converted to gas. A stock cap sits loose, rattles in the wind, and funnels condensation back onto the crown. We measure on-site and fabricate custom caps from stainless steel or copper, sized to your exact flue dimensions. On a ranch home near 23rd Avenue and Hillside Lane, we replaced a rusted-out standard cap with a custom multi-flue DuraFlex cap after a freeze-thaw cycle had done its damage. The homeowner wanted a one-trip solution for their detached workshop’s oversized flue, so we also reinforced the heavy steel door spring on the chimney cleanout access.

Multi-Flue Cap Installation

Many Hillside homes have two or more flues sharing a single chimney structure, one for the furnace and one for a fireplace that hasn’t seen a log in twenty years. A multi-flue cap covers the entire chimney top with a single hood, eliminating the gaps where water and animals get in. We install DuraFlex and Gelco multi-flue systems engineered for the wider chimney crowns common on mid-century construction. This is often the right choice when individual flue caps would leave exposed crown surface that Cook County’s freeze-thaw cycles would attack within two seasons.

Crown Repair

The crown is the concrete or mortar slab that seals the top of your chimney between the flue tiles. On Hillside’s 60-70 year old chimneys, original mortar crowns have cracked and separated from the flue tile liner, letting water run down inside the masonry and damage interior walls. We cut out the deteriorated material, form a proper slope for drainage, and pour a new crown with professional-grade materials. The slope matters. Flat crowns hold water, and water held through a January freeze splits concrete. We build them to shed water toward the edges, not the flue.

Crown Coating

When the crown damage is surface-level, crown coating with HeatShield or Gelco products can add years of life without full replacement. This is a practical option for Hillside homeowners who’ve caught the problem early, before freeze-thaw cycling has cracked the crown through to the chimney interior. We clean the surface, fill hairline cracks, and apply a flexible waterproof membrane that moves with the masonry as temperatures swing above and below freezing from November through March. The coating is not a substitute for a structurally failed crown, but for crowns with minor spalling and no separation from the flue tile, it’s a square deal that extends service life significantly.

Trusted Brands We Service in Hillside

We work exclusively with professional-grade materials from DuraFlex, HeatShield, Gelco, Olympia Chimney, Famco, and Copperfield. No builder-grade substitutes. For Hillside’s specific conditions, we stock DuraFlex stainless multi-flue caps and Gelco crown coating compounds at our Chicago warehouse, so we’re not ordering parts while your chimney sits open to the weather. That local inventory is part of why we complete most Hillside jobs in a single visit. When a cap has blown off in a windstorm off the cemetery tree line, you don’t want to wait two weeks for shipping.

Common Chimney Cap & Crown Problems We See in Hillside Homes

• Oversized flues trap moisture under ill-fitting caps. Hillside’s coal-to-gas conversion left flues too large for modern appliances. Moisture pools on the crown, accelerates spalling, and rusts standard galvanized caps from the underside out. We see this on nearly every 1950s ranch in the village.
• Freeze-thaw cycles destroy crowns from the top down. Cook County’s hard freeze-thaw cycles, with temperatures regularly swinging above and below freezing throughout November-March, aggressively attack mortar joints and chimney crowns on Hillside’s aging brick chimneys. Annual inspection catches spalling and water infiltration before it damages the interior liner or allows carbon monoxide pathways to open up.
• Acidic condensation eats standard caps in 2-3 winters. The oversized flues on Hillside’s 60-70 year old chimneys produce cooler exhaust that condenses on the cap interior. That condensation is acidic. Standard galvanized caps rust through fast. We upgrade to stainless or copper on every Hillside replacement.
• Original mortar crowns crack away from flue tiles. The bond between the crown and the clay flue liner fails with age and thermal cycling. Water enters the gap, freezes, and wedges the crown further from the liner. Interior walls below the chimney show staining when this has been going on for a season or two.

Pricing for Chimney Cap & Crown in Hillside, IL

We Also Serve Cities Near Hillside

Our technicians cover Hillside and the surrounding communities daily, including Berkeley, Bellwood, Westchester, and Elmhurst. The same postwar housing stock and conversion-era flue problems extend through this corridor of western Cook County, and we carry the inventory to handle them without return trips.

FAQs - Chimney Cap & Crown in Hillside