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.
Olympia Chimney Crown Repair: The Alexandria Owner’s Guide
Olympia Chimney crown repair in Alexandria typically runs $425 to $1,100 installed for a cast-in-place crown rebuild, with most jobs landing around $600 to $800. We stock Olympia Chimney-compatible crown materials on our trucks, so most repairs are completed in one visit. Most Alexandria homeowners discover a failed crown the hard way: water staining on the ceiling near the flue, a chunk of mortar on the patio after a hard rain, or a note from a home inspector during a resale inspection. The crown is the concrete or mortar cap covering the top of the chimney stack, and once it starts spalling, Virginia’s freeze-thaw cycles get behind it fast. Corrine Halstead puts it plainly: “The camera doesn’t have an opinion. It just shows you what’s there.” And what’s usually there is a crown that’s been quietly failing for three winters.
Which Olympia Chimney Models This Applies To
Olympia Chimney manufactures prefabricated and masonry chimney systems, and the crown spec differs by series. For Alexandria homes, we most often see Olympia’s masonry chimney crowns on older brick stacks, especially in houses built through the 1960s and 1970s in neighborhoods like Del Ray, Rosemont, and Seminary Hill. The key compatibility gotcha: Olympia masonry crowns are engineered to fit the outside diameter of the flue tile, not the brickwork. If you measure the flue and get 13 inches square, you need a crown with a 13.5-inch flue opening and a minimum 2-inch overhang on all sides. Many Alexandria homeowners buy a generic crown form from a big-box store and discover the overhang is wrong, which puts water straight down the brick face. We source Olympia Chimney crown forms and related materials directly, and if you’re weighing OEM versus a quality aftermarket equivalent, the honest answer is that for crown repair, the difference is the concrete mix and the form dimensions, not the brand stamp. We use Olympia-spec forms when they’re available and clearly label the substitution on your written quote.
One more thing worth knowing: Level Two Chimney Alexandria is an independent service provider. We stock and install Olympia Chimney parts, but we’re not affiliated with the manufacturer, which means our warranty comes from our work, not a corporate policy.
Signs Your Olympia Chimney Crown Repair Is Failing

- Hairline cracks spreading across the crown surface. These start as barely visible fissures from thermal expansion. Once water enters and freezes, the crack widens, and the spalling cycle begins. In Alexandria’s 40 to 50 freeze-thaw days per winter, this accelerates fast.
- Crumbling cement or exposed aggregate on the crown edge. That means the surface has already lost its structural integrity. You’ll see small pieces of the crown on your roof or in the gutter, especially after heavy rain.
- White efflorescence streaking down the brick below the crown. Water is passing through the crown, dissolving salts in the mortar, and depositing them on the brick face. This tells you the crown has been leaking long enough to move minerals, not just moisture.
- Water stains on the ceiling or walls near the fireplace. By the time interior staining shows, the crown has failed enough that water is traveling down through the flue or between the brick and liner. That’s a structural issue, not a cosmetic one.
- Rusting on the damper or firebox metal. Water migrating down the flue hits the damper assembly first. If you see rust there, the crown is no longer doing its job, and the repair scope usually expands to address liner and smoke chamber dampness.
Before
AfterReplacement Cost & What’s Included
In Alexandria, expect to pay between $425 and $1,100 for a full Olympia Chimney-compatible crown rebuild. The range is driven by chimney height (roof pitch and access change crew hours), crown size, and whether the old crown needs full demolition before forming and pouring. A simple one-flue crown on a low-pitch roof lands at the lower end. A wide crown with two flues, a cricket, and significant spalling on a steep Old Town row house roof lands at the upper end. Here’s what that includes, as a written line-item quote before we start:
- Demolition and removal of the failed crown: $150 to $250, depending on access and disposal.
- Forming and pouring the new crown with Olympia-spec dimensions, a minimum 2-inch overhang, and a drip edge to shed water away from the brick: $200 to $450.
- Concrete crown sealer, applied after the crown cures to reduce water absorption in Alexandria’s freeze-thaw climate: $75 to $150.
- Camera-scan inspection and photo record, documenting the condition of the flue and liner before and after the repair: included as standard, per Clause 4 of the Haven Standard, no extra charge.
Every crown repair quoted in writing before work starts, backed by our 365-Day Done Right Promise: if it’s not done right, we make it right.
DIY or Call Us?

If you’re comfortable on a ladder and want to inspect your crown, you can do a visual check from the roofline. Look for cracks wider than a credit card, missing crown edge sections, or standing water pooling in the middle. That’s useful information for the call. But the DIY line stops there. A crown is a structural concrete assembly at roof height. Forming and pouring it correctly requires fall-protection gear, a proper mix that can flex through Alexandria’s freeze-thaw cycles, and an understanding of drip edge geometry that keeps water off the brick. Get the mix wrong, and the crown crumbles in two winters. Get the overhang wrong, and water runs down the brick and destroys the mortar joints. Safety caveat: crown work happens on the roof, often at heights above 10 feet and on pitches that are genuinely dangerous without proper harness and tie-off points. A trained professional with fall-protection equipment is the only reasonable option. Call (240) 290-6726 and we’ll put a written price in your hand before any work starts.
FAQs
A properly formed and sealed concrete crown in Alexandria typically lasts 15 to 25 years before showing significant spalling, depending on exposure to freeze-thaw cycles and whether a quality sealer was applied. Crowns with improper overhang or missing drip edges can fail in as little as 5 years. We’ll show you the before-and-after photos so you can see exactly what was built, and our 365-Day Done Right Promise covers workmanship for the full year after the repair. Call (240) 290-6726 for a written estimate, we do not charge for the quote.
Hairline cracks under 1/8 inch wide can sometimes be addressed with a high-quality elastomeric crown sealer, which buys time not a rebuild. Structural cracks, crumbling edges, or efflorescence on the brick mean the crown has already lost its water-shedding capability and patching will fail again within one to two winters. We’ll tell you plainly if a sealant is realistic or if you’re throwing money at a crown that needs replacement. Bring us a competitor’s written quote and we’ll give you a free second opinion.
A standard one-flue crown replacement in Alexandria is a same-day job. Crews arrive with the old crown demoed, the new crown formed, poured, and sealed within four to six hours. Larger multi-flue crowns or chimneys with multiple access complications can stretch into a second morning, but that’s rare. Before we book, you’ll get a written scope, a written price, and a written warranty, per Clause 1 of the Haven Standard.
We keep Olympia Chimney crown forms and compatible concrete mixes on the truck, along with materials from DuraFlex, HeatShield, and Gelco for liner-related work that often accompanies a crown repair. If you have an Olympia Chimney product and you’re not sure which crown spec you need, we pull the measurements during the inspection and match it on site. That means most Alexandria crown repairs don’t wait on a parts order.
For a free, no-pressure estimate on your Olympia Chimney crown repair in Alexandria, call (240) 290-6726. A live person answers, 24/7. We’ll schedule the inspection, run the camera, and put a written price in front of you before any work begins.
Written by Corrine Halstead, Owner, Level Two Chimney Alexandria at Level Two Chimney Alexandria, serving Alexandria and nearby areas.





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