Fast, Reliable Chimney Cap & Crown Across Flower Mound
Chimney cap and crown repair in Flower Mound typically runs $280-$890 depending on whether we’re sealing a hairline crack or replacing a rusted chase cover on a prefab unit, and most of our Flower Mound calls are handled same-day or next-day. If you’re seeing water stains on the ceiling near your fireplace, hearing metal flapping against the chase during North Texas windstorms, or noticing rust streaks down your siding from the chimney area, the cap or crown is the first place we look. We’ve been driving out to Flower Mound from our dispatch since the late 1980s, back when the town was still figuring out how big it would grow, and we’ve watched the same builder-grade prefab fireplaces age out together. Call (844) 803-1545 - a live person answers, even at 10 p.m. on a Sunday.
Why Hearthstone Chimney Co. Is Flower Mound’s Preferred Chimney Cap & Crown Company
We’ve worked on chimneys in Flower Mound’s 75022, 75027, and 75028 ZIP codes for over four decades. That means we’ve crawled the chases in the lakeside neighborhoods off Flower Mound Road, replaced chase covers in the older sections of Wellington, and diagnosed crown cracks in the hillside homes near Parker Square. Our technicians know without a map which subdivisions put in galvanized covers versus aluminum, which builders cheaped out on crown slope, and where the 1990s prefab units are starting to show their age in clusters.
Flower Mound homeowners have left us reviews mentioning specifically that we showed up when we said we would, explained what was wrong without talking down to them, and left the work area cleaner than we found it. We don’t chase stars - we chase callbacks, and we don’t get many.
Response time to Flower Mound averages under 90 minutes during business hours and same-day for emergencies. We’re not routing from Fort Worth or Dallas; we know the back way down FM 2499 and which side streets cut through during rush hour.
The local knowledge that matters most: we understand that Flower Mound’s housing stock isn’t like older DFW. These aren’t 1950s brick chimneys with flue tiles and masonry crowns. They’re sheet-metal chases with factory-built units, and the failure modes are completely different. A company that treats your prefab chase like a masonry chimney will miss the actual problem.
Our Chimney Cap & Crown Services in Flower Mound
Cap Installation
New cap installation in Flower Mound runs $340-$620 for standard single-flue galvanized or stainless units, and $580-$1,200 for multi-flue custom caps on larger prefab chases. We measure on-site because the builder-grade caps installed in the 1990s and 2000s were often undersized for our wind exposure, or mounted with screws that have rusted through. In the Wellington and Lakeside DFW areas, we’re regularly installing Famco stainless caps with proper overhang to keep water off the chase siding.

Cap Replacement
Cap replacement is our most common Chimney Cap & Crown call in Flower Mound. The original galvanized caps on prefab units from the 1990s-2000s buildout are hitting end-of-life en masse. We see rust-through, wind lift-off after ice storms, and screens so corroded they’ve fallen into the flue. Replacement typically takes 45-90 minutes, and we carry Copperfield and Gelco caps sized for the common prefab chase dimensions found here.

Crown Repair
True masonry crowns are less common in Flower Mound than in older Dallas neighborhoods, but they exist - particularly in the 75022 lakeside areas and custom builds near Flower Mound Road. When we find crown cracks, we don’t just caulk over them. We open the crack to sound concrete, treat the steel, and repour with proper slope and overhang. Small repairs run $280-$450; full crown rebuilds on masonry stacks run $680-$1,100. We also flag stepped mortar-joint cracks from foundation movement, common on Blackland Prairie clay soils, because a cracked crown on a shifting chimney is a Band-Aid on a broken bone.

Crown Coating
For crowns with surface deterioration but sound structure, we apply HeatShield crown coating - a breathable, flexible sealant that bridges hairline cracks without trapping moisture. At $320-$480 including prep and inspection, it’s a practical middle path for Flower Mound homeowners who want to stop infiltration without rebuilding a crown that still has structural integrity. We document the crown condition with camera photos before and after, so you can see exactly what was addressed.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Flower Mound
We stock and install professional-grade caps, crowns, and chase covers from Famco, Copperfield, and DuraFlex - brands that hold up to North Texas temperature swings and the elevated humidity we get off Lake Lewisville. We don’t substitute builder-grade hardware-store caps that’ll rust through in three years. Our trucks carry the common sizes for Flower Mound’s dominant prefab chase dimensions, which means most cap replacements happen in a single visit without ordering delays. When we do need to spec a custom multi-flue cap for an oversized chase or a homeowner’s specific aesthetic, we measure with a tape, not a guess, and we show you the exact product sheet before we order.
Common Chimney Cap & Crown Problems We See in Flower Mound Homes
- Rusted-through galvanized chase covers on 1990s-2000s prefab units. Flower Mound’s explosive residential buildout means thousands of homes have original galvanized covers now past their 20-25 year service life. The rust accelerates in our higher humidity near Lake Lewisville, and homeowners often mistake the resulting ceiling stains for roof leaks.
- Wind-lifted or missing caps after spring and winter storms. North Texas wind gusts off the prairie hit Flower Mound with nothing to slow them down. We’ve found caps in flower beds, on patio covers, and once in a swimming pool in the Lakeside area. The original screw patterns often strip out, so we upgrade to through-bolt mounting.
- Cracked or improperly sloped masonry crowns in 75022 lakeside homes. The older custom homes near the lake and along Flower Mound Road sometimes have true masonry construction, and the Blackland Prairie clay beneath them shifts seasonally. We regularly find crowns that have separated from the flue tile or developed stepped cracks following foundation movement.
- Moisture intrusion from missing or damaged spark arrestor screens. The fine mesh on prefab caps corrodes faster than the cap body itself. Once it’s gone, rain enters freely, squirrels investigate, and the chase interior starts rotting. We replace with stainless mesh that outlasts the original by decades.
Pricing for Chimney Cap & Crown in Flower Mound, TX
Here’s what cap and crown work actually costs in Flower Mound’s market right now:
- Standard single-flue cap replacement: $340-$620
- Multi-flue or custom cap installation: $580-$1,200
- Crown coating (HeatShield): $320-$480
- Crown repair (crack sealing, partial rebuild): $280-$450
- Full crown rebuild on masonry chimney: $680-$1,100
- Chase cover replacement on prefab unit: $420-$780
What moves you within these ranges: cap material (galvanized, stainless, or copper), chase height and roof access, whether the flue tile or chase frame needs repair before the new cap goes on, and whether we’re matching an HOA aesthetic requirement in neighborhoods like Wellington or Lantana’s sister communities. We give you the full number before we start - no surprises on the bill. Estimates are free, and we honor our $50 off any repair over $250. Call (844) 803-1545 for a firm quote.
We Also Serve Cities Near Flower Mound
Our technicians regularly cross the borders into Chimney Liner & Rebuild in Flower Mound territory when a cap or crown inspection reveals deeper issues, and we handle Chimney Cleaning & Sweep in Flower Mound as part of full-system service calls. Beyond Flower Mound proper, we serve Highland Village, Lantana, Corinth, and Lake Dallas with the same response standards and the same upfront pricing. The same live person answers your call, and the same 90-Day Done Right Promise covers the work.
Serving Flower Mound, TX - Our Local Coverage Area
We’re based in the Flower Mound area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Chimney Cap & Crown in Flower Mound
We typically arrive within 90 minutes for standard calls and same-day for emergencies like a missing cap during rain or a damaged crown letting water into the firebox. Call (844) 803-1545 - a live person answers 24 hours a day, 7 days a week, and we’ll give you a real arrival window, not a four-hour guess.
Yes - we work across all three Flower Mound ZIP codes: 75022, 75027, and 75028, from the established homes near Parker Square and Flower Mound Road to newer construction in the western 75028 areas. Prefab chase covers fail on fifteen-year-old homes too, and we carry the sizing to match.
Yes. A missing cap in a thunderstorm, a wind-torn chase cover, or a crown crack discovered during a weekend fireplace lighting - we answer the phone and dispatch. Our 24/7 live answering means you talk to a person who can schedule the call, not a voicemail system that calls back Monday.
Not with us. Our pricing is consistent across our service area. What does vary is the type of work: Flower Mound’s prefab-dominant housing stock means more chase cover and cap replacements, while older Dallas neighborhoods see more masonry crown rebuilds. The job type affects the price, not the ZIP code.
Every cap and crown job is backed by our 90-Day Done Right Promise in writing - if it’s not right, we make it right with no paperwork and no arguing. Material warranties vary by product: Famco and Copperfield stainless caps carry manufacturer warranties we pass through, and HeatShield crown coating is backed by its own product guarantee. The Promise is ours, and it stands regardless.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving Flower Mound since 1984.