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 Chimney Cap Installation: The Columbia Owner’s Guide
We stock and install Olympia Chimney-compatible chimney caps for most residential flue sizes common in Columbia, with typical installed pricing between $380 and $720 depending on cap style and whether the flue needs resizing. Most replacements are completed in a single visit, and we carry the full range of Olympia Chimney cap sizes on our trucks. Columbia homeowners usually discover the problem after a storm: water in the firebox, rust stains down the masonry, or a cap that’s blown crooked on its mount and now whistles every time the wind picks up across the Kings Contrivance treeline.
Which Olympia Chimney Models This Applies To
Olympia Chimney manufactures caps across several series, and matching the right one matters more than most homeowners expect. The 13-by-13 and 13-by-17 galvanized models fit the majority of older Columbia homes built between 1970 and 1995, particularly in villages like Long Reach and Oakland Mills where the original construction used standard 8-by-8 or 8-by-12 flue tiles. Newer construction in River Hill and Hickory Ridge often requires the larger stainless-steel line, typically 14-by-14 or custom outside-mount dimensions.
To identify your cap, check the stamped model number on the underside of the existing lid, visible from the roof edge with binoculars or from the top of a sturdy ladder. If the stamp’s rusted away, measure the flue tile opening precisely, corner to corner, not the crown surface. We stock both OEM Olympia Chimney caps and equivalent-grade stainless caps from Gelco and Famco that meet the same 24-gauge minimum and carry equivalent wind-load ratings. For most Columbia applications, the aftermarket equivalent performs identically at lower cost. The exception is the Olympia Chimney “WindBeater” series, which uses a proprietary bracket spacing that aftermarket caps rarely match without modification.
Signs Your Olympia Chimney Chimney Cap Is Failing
- Water staining on the firebox walls or damper. A cracked or poorly seated cap lid lets rain run straight down the flue. In Columbia’s freeze-thaw cycles, that water expands behind the damper plate and accelerates rust on the throat assembly.
- Visible rust streaks down the exterior masonry. Galvanized caps lose their zinc coating after 12 to 15 years of Maryland humidity and acid rain exposure. Once the base metal shows, oxidation runs down the chimney face and etches the mortar joints.
- The cap sits crooked or rocks in its mount. Wind gusts off the Patuxent River valley, particularly in exposed neighborhoods like Dorsey’s Search, can torque a poorly secured cap until the corner brackets fatigue. A rocking cap is a cap that will depart in the next serious storm.
- Bird or squirrel nesting debris in the firebox. Mesh screens on Olympia Chimney caps clog with leaf litter or corrode through at the welds. Once the mesh opens, wildlife treats your flue like a hollow tree.
- Downdraft smoke or difficulty starting fires. A dented or improperly sized cap disrupts the pressure differential that draws smoke upward. We’ve traced persistent smoking complaints in Columbia’s tighter-built homes directly to caps that were replaced with the wrong series height.
Replacement Cost & What’s Included
| Service Component | Price Range |
|---|---|
| Olympia Chimney standard galvanized cap, installed | $380 - $480 |
| Olympia Chimney stainless steel cap, installed | $520 - $620 |
| Custom outside-mount or oversized cap | $580 - $720 |
| Flue tile resizing or bracket fabrication (if needed) | $85 - $150 |
What drives the range: cap material, whether the existing flue tile is square and true, and whether the crown surface needs leveling before the new mount seats properly. We photograph the condition before we quote, and the price we state is the price on the invoice. Every cap installation carries our 90-Day Done Right Promise in writing, no arguing. If water gets past it, we come back.
DIY or Call Us?
An owner can safely check whether the cap rocks in its mount or whether the mesh is intact from ground level with binoculars. Do not climb the roof to verify. Columbia’s split-level and colonial rooflines often have steep pitches above the chimney chase, and the fall risk outweighs any savings.
Where DIY goes wrong: improper flue measurement leading to a cap that gaps and leaks, bracket over-tightening that cracks the flue tile, and the common mistake of mounting a new cap on a crowned surface that isn’t level, which guarantees wind torque and early failure. We bring the right ladder, the right bracket hardware, and the silicone sealant rated for 400-degree flue temperatures. Most jobs take under 90 minutes. Call (443) 899-1174 and we’ll walk through what you’re seeing.
FAQs
Galvanized caps typically last 12 to 15 years in Howard County’s humidity and acid rain pattern; stainless steel caps often reach 20 years or more. The mesh screen usually fails before the lid does. Call (443) 899-1174 for an exact quote - estimates are free.
Minor mesh damage can sometimes be patched, but dented lids, cracked welds, or bracket fatigue mean replacement. A repaired cap rarely seals as reliably as a new one, and the labor difference is minimal. Call (443) 899-1174 for an exact quote - estimates are free.
Most replacements are completed in 60 to 90 minutes, including removal, flue inspection, and proper sealing of the new mount. We carry the full range of Olympia Chimney sizes on our trucks. Call (443) 899-1174 for an exact quote - estimates are free.
Yes. We stock galvanized and stainless caps in all standard flue sizes, plus custom-order brackets for the WindBeater series. Same-day installation is available for most Columbia addresses. Call (443) 899-1174 for an exact quote - estimates are free.
Hearthstone Chimney Co. is an independent service provider and is not affiliated with Olympia Chimney.
If it drafts right, it burns right - everything else is just details we handle before you light the first fire of the season.
Ready to stop the leaks and keep wildlife out? Call (443) 899-1174. A live person answers, 24 hours a day, and we’ll schedule a free estimate at your Columbia home. Russell Haines and our crew have been working these neighborhoods for years, and we back every cap installation with the 90-Day Done Right Promise - in writing, no arguing.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Columbia and nearby areas.





Before
After
Before
After
Before
After