Olympia Chimney Chimney Cap & Crown Nationwide

Olympia Chimney Chimney Cap & Crown in Chelmsford: What to Know First

We provide independent Olympia Chimney chimney cap & crown service in Chelmsford, with most repairs completed in a single visit and upfront pricing agreed before we start. A standard Olympia Chimney cap replacement runs $280-$520, while crown repair or coating typically falls between $340-$780 depending on flue count and access. We’re not here to sell you a full rebuild when a cap swap will do.

Call (978) 991-9492

This page is for Chelmsford homeowners who already have an Olympia Chimney liner, cap, or crown installed and need honest repair or replacement. If your cap is rattling in a nor’easter, your crown is shedding mortar crumbs, or you’re not sure which Olympia series is up there, call us at (978) 991-9492. A live person answers, 24 hours a day.

How Olympia Chimney Products Fail - and How We Fix Them

• Olympia 316Ti flexible liner caps loosen at the clamp joint after 8-12 winters. The titanium-stabilized stainless holds up fine, but the stock clamp-and-screw band was never designed for Chelmsford’s freeze-thaw cycling. We’ve found the gap opens slowly, letting water sheet down between the cap and flue wall. We replace the factory clamp with a Gelco Sure-Seal band and add a bead of high-temp silicone at the seam. Done right, it outlasts the original.
• Olympia Chimney’s standard galvanized caps (common on 2005-2015 installs) rust through at the mesh skirt in 6-10 years. Chelmsford’s acid rain and road salt aerosol accelerate the corrosion, especially within a mile of Route 3 or 495. The mesh looks intact from the ground, but your fingers go through it. We upgrade to a stainless Olympia replacement or, if the flue configuration allows, a Gelco multi-flue cap with a wider drip edge that sheds water farther from the masonry.
• Olympia’s cast-in-place crown on their pre-fab chimney systems cracks at the flue penetration. This is the most common call we get in the older colonials near Heart Pond, where the narrow flue offset puts lateral stress on the crown every time the system heats and cools. The crack starts hairline, widens to 1/8 inch by year three, and funnels water straight to the firebox. We grind it back to sound concrete, apply a tapered CrownCoat layer with embedded fiberglass mesh, and verify the slope drains away from the flue. Russell Haines has redone enough of these to know the freeze-thaw here doesn’t forgive a flat surface.
• Olympia Chimney’s multi-flue caps ship with universal base rails that don’t seat flat on irregular Chelmsford masonry. The 3/16-inch gap under one corner becomes a water channel by November. We fabricate custom shims from copper flashing or spec a Famco made-to-fit cap when the flue spacing is non-standard. Either way, we bed the rail in butyl tape before fastening. No more mystery leaks.
• The Olympia WindBeater cap’s turbine bearings seize after heavy pollen seasons. Chelmsford’s oak and pine pollen in May packs the bearing race, and the first hard rain turns it to paste. The turbine stalls, draft drops, and smoke backs up into the house. We disassemble, clean the race with solvent, repack with high-temp bearing grease, or replace the turbine assembly if the bearing is pitted. If the cap is past 15 years, we often recommend a Gelco stationary cap - simpler, no moving parts, same draft performance on most flues.

Our Olympia Chimney Chimney Cap & Crown Process

1. 1
   Call and schedule. A live person answers, day or night. We ask for the Olympia series name if you know it, the approximate install year, and what’s happening - water, draft, debris, or visible damage.
2. 2
   Level-2 camera inspection. Our tech arrives in uniform, background-checked, and runs a camera up the flue before touching the cap or crown. You see the footage on a tablet. We document cracks, liner condition, and water tracks. No guesswork.
3. 3
   Parts decision. If your cap is under warranty, we’ll tell you straight. Otherwise, we match OEM Olympia parts where they make sense, or spec Gelco, Famco, or Copperfield equivalents that fit better and last longer. You get the price in writing before we start.
4. 4
   The repair. Most cap swaps and crown coatings take 2-3 hours. We tarp the roofline, remove the failed component, prep the surface, install new material, and seal every penetration.
5. 5
   Post-repair verification. We run a smoke test or draft gauge to confirm proper draw. We photograph the finished work. You get the images, a plain-English summary, and the 90-Day Done Right Promise in writing.
6. 6
   Cleanup and close. We haul away the old cap or debris. The number on the estimate is the number on the invoice. If it’s not right, we come back. In writing, no arguing.

What Olympia Chimney Chimney Cap & Crown Costs in Chelmsford

Steep pitches above 8/12, embedded flue liners that need temporary support, and jobs requiring a second technician add to the total. We price these upfront, not as surprises. Call (978) 991-9492 for a free estimate - we’ll look at your setup and give you the real number.

Why Chelmsford Homeowners Call Hearthstone Chimney Co. for Olympia Chimney Work

We’ve been answering the phone with a live person for over 42 years, and we plan to be here when your next cap wears out. The 90-Day Done Right Promise means if our repair fails, we make it right - in writing, no paperwork, no arguing. Our technicians are background-checked, uniformed, and trained on Olympia Chimney’s specific mounting systems, not just generic cap installation.

We also work with DuraFlex, HeatShield, and Gelco, so when an Olympia part is back-ordered or a better solution exists, we have options. In Chelmsford, that matters. The nor’easters don’t wait for shipping. If the flue isn’t right, the fire isn’t safe - it’s that simple.

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