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 Fairfax Owner’s Guide
We stock and install Olympia Chimney-compatible chimney caps across Fairfax, with most installations running between $340 and $690 depending on cap size, material, and whether the existing flue tile needs minor prep work. Most Fairfax homeowners discover their cap has failed the same way: a rusted piece of metal shows up in the yard after a windstorm, or a water stain appears on the ceiling near the chimney chase. By the time you’re reading this page, you’ve probably already looked up at the roofline and noticed the cap is leaning, missing, or crumbling at the seams.
The good news is that a cap replacement is one of the more straightforward chimney repairs we do. The part itself usually costs between $90 and $210 for an Olympia Chimney-compatible model, and the labor is typically under two hours. What matters more than the brand name on the box is whether it’s sized correctly for your flue tile, made from the right metal for this climate, and installed so it stays put in Fairfax’s February wind gusts. That’s where we focus our attention.
Which Olympia Chimney Models This Applies To
Olympia Chimney makes caps in two primary lines: the Olympia Standard cap, which is a galvanized or stainless steel model sized for standard rectangular flue tiles, and the Olympia Premier series, which includes a slightly taller dome profile and a stronger mesh screen. The compatibility issue we run into most often in Fairfax is not the flue tile size; it’s the crown. Homes built between 1970 and 1995 in neighborhoods like Mantua, Kings Park West, and the Fairchester area often have poured concrete crowns that have cracked around the flue edge. An Olympia cap slides over the outside of the flue tile, so if that tile has spalled or the crown has crumbled around it, the cap won’t seat properly no matter how tight the screws are. We check that before recommending any cap.
We are an independent service provider; we’re not affiliated with Olympia Chimney as a manufacturer. We source directly through the Haven buying network, which gets us genuine Olympia parts along with compatible equivalents from Copperfield and Famco at prices that stay honest. To identify the right cap before we arrive, take two measurements: the outside width of the flue tile in both directions, and whether it’s a round or rectangular opening. A photo of the existing cap and the flue tile with a tape measure held against it gets us 90 percent of the way there without anyone going up a ladder.
Signs Your Olympia Chimney Chimney Cap Installation Is Failing

- Water stains on the ceiling or wall near the chimney chase. This usually means the cap is no longer shedding rain and moisture is getting past the flue opening, then running down the old mortar joints inside the chase.
- Rust staining on the exterior chimney face. Olympia Standard galvanized caps rust out after a decade or so in Virginia’s humid, rain-heavy climate. The rust washes down the brick and leaves orange streaks.
- The cap is leaning or sitting off-center. Wind-driven rain in Fairfax, especially north-facing chimneys, gradually loosens cap screws over time. Once the cap shifts, it starts flapping in gusts and works itself looser.
- Rain debris or leaf litter inside the firebox. If the cap’s mesh screen has rusted through or separated from the frame, leaves and twigs find their way down the flue. That’s also a sign animals may be next.
- Drafting problems that weren’t there last season. A collapsed or heavily rusted cap can partially block the flue opening or change the airflow pattern, and a house in Fairfax that vents poorly will show it in a smoky start and a fire that’s stubborn to stay lit.
If you spot any of these, the follow-up step is the same: get a camera down the flue and a set of eyes on the cap. Level Two Chimney Fairfax does both on the same visit, and the photo record is included.
Before
AfterReplacement Cost & What’s Included
Installed Olympia Chimney cap replacement in Fairfax runs from $340 to $690, and that price is written down before we start. Here’s the honest breakdown:
- Olympia Standard galvanized cap: $90 to $140 for the part
- Olympia Premier stainless steel cap: $140 to $210 for the part
- Standard installation labor: $210 to $340, including trip, ladder setup, fastener replacement
- Flue tile or crown prep work: $60 to $140 if we need to clean up a spalled edge before the cap seats correctly
Stainless steel is worth the extra money in Fairfax. It resists the rust that kills galvanized steel in 8 to 12 years here, and the Olympia Premier’s denser mesh screen does a better job keeping out starlings and squirrels, which are persistent in neighborhoods near the Fairfax County Government Center corridor. Every cap installation includes a written scope, a written warranty on the work, and before-and-after photos as part of the Haven Standard Clause 4 documentation. The 365-Day Done Right Promise applies: if the cap isn’t seated right or works loose, we come back and fix it.
DIY or Call Us?

What you can safely do from the ground: check for visible rust streaking, note the general condition of the cap with binoculars or a phone camera, and clear any leaves or debris from the firebox before the next burn. What you should not do is climb a Fairfax roof in February to reseat a loose cap. Steep rooflines in neighborhoods like Fairfax Villa or the older colonials near the Government Center corridor have pitches that make a one-story fall feel like a two-story recovery. We’ve also seen owners inadvertently crack a flue tile trying to force an undersized cap over it, which turns a $500 job into a $2,800 flue repair.
The diagnostic part, the part where you really don’t want to guess, is knowing whether the cap is the whole story or just the visible symptom. If we pull the old cap and find water has been getting down the flue for two winters, the right news is a new cap plus a waterproof chimney crown treatment, not just a new cap. That’s the kind of finding our camera makes obvious, and the kind of finding we show you before anyone starts writing a quote. Call us at (571) 443-8256 and we’ll schedule a look.
FAQs
In Fairfax’s humid, rainy climate, a galvanized Olympia chimney cap lasts about 8 to 12 years, and a stainless steel Olympia Premier can go 20 or more before the mesh screen starts showing wear. The big variable is how much tree coverage is over the roofline, because Fairfax’s older neighborhoods with mature oaks trap moisture and leaf debris against the cap mesh, which accelerates rust. We cite those years honestly because we see the failure patterns month after month across the county.
Most of the time, no. Once a cap’s mesh screen separates from the frame or the dome has rusted through, the metal is too thin to patch, and any repair we attempt would be a temporary fix in Fairfax’s wet season. If the only issue is a few rust spots and the screws are still tight, we’ll tell you that too, and we’ll show you the photo so you know were not overselling. But when the mesh has holes or the collar is rusted at the attachment point, replacement is the honest, longer-life solution.
Most Olympia chimney cap installations in Fairfax take 60 to 90 minutes on site, and we do them year-round. The visit includes a quick camera scan of the flue before we put the new cap on, because we don’t want to seal up a flue that needs more attention behind the cap. By the time we come down the ladder, you’ll have a written scope, a written warranty, and the photo record in hand.
We keep the most common Olympia Standard and Olympia Premier sizes for rectangular and round flue tiles stocked on our vehicles, and anything outside the standard range is ordered and installed within a few days. We can usually match your cap measurement from a photo and a tape reading and arrive with the right part on the first trip. If we don’t have your exact size on the truck, we’ll say so before we schedule, not after the ladder is up, because the written quote honors that principle: Price before work, always.
If you already know your Olympia cap needs replacement, or if you’ve got water where water shouldn’t be and want a camera answer before any cap decision, call (571) 443-8256. Corrine Halstead and the Level Two Chimney Fairfax team will get you on the schedule, get the cap matched, and get the documentation in your hands before we leave.
Written by Corrine Halstead, Owner, Level Two Chimney Fairfax at Level Two Chimney Fairfax, serving Fairfax and nearby areas.





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