Gelco Chimney Liner & Rebuild Nationwide

Gelco Chimney Liner & Rebuild in Alexandria: What to Know First

Gelco chimney liner and rebuild work in Alexandria typically runs $2,800 to $6,400 depending on flue height, liner type, and how much masonry needs rebuilding. We’re an independent Gelco service provider, not a factory rep, and most liner replacements take us one to two days on site. You’ll get a fixed price before we touch anything, and Wendell Pike or one of his crew will be the one doing the work.

Call (571) 521-4837

This page is for Alexandria homeowners who already own a Gelco liner or Gelco-installed chimney and are seeing problems: rust stains, flaking, smoke backing up, or a sweep elsewhere telling you it’s time for a rebuild. Call (571) 521-4837 and we’ll talk through what you’re seeing before we ever schedule a visit.

How Gelco Products Fail - and How We Fix Them

• Gelco flexible stainless liners, the older 316L-alloy runs: These were common in Alexandria rowhouses converted to gas in the 1990s and early 2000s. We see pinhole corrosion where condensate pools at the bottom elbow, especially in chimneys with no insulated chase. The fix is usually a full liner pull and replacement with a modern 316Ti or AL29-4C alloy that handles condensate better. We’ll show you the corroded section on camera before we quote it.
• Gelco rigid liner sections and seam separation: On taller Alexandria chimneys, weight and thermal cycling can open the seams between rigid sections. You’ll see smoke stains bleeding through the brick, or a sweep’s camera catches daylight at a joint. We re-secure and reseal with high-temp sealant when the alloy is still sound, or replace the failing sections if the metal is thin.
• Gelco cap and crown interface failures: The liner is only as good as the crown above it. Gelco-installed systems from the early 2000s often used a poured crown with no expansion joint, and Alexandria freeze-thaw cycles crack it. Water runs down the outside of the liner, rusts the top collar, and eventually the liner itself. We rebuild the crown with a proper overhang and drip edge, then replace whatever the water got to.
• Gelco flue tile-to-liner transitions in partial rebuilds: When a home had the lower flue tiles rebuilt and a Gelco liner dropped in, we sometimes find the adapter plate at the tile-to-liner junction was never sealed correctly. That’s a carbon monoxide escape path and a draft killer. We pull the adapter, clean both surfaces, and reseal with a mechanical band plus refractory caulk.
• Gelco pre-insulated liners with degraded wrap: The insulation wrap on older Gelco liners can absorb moisture and settle over time, leaving cold spots that encourage creosote in wood-burning flues. We see this in Alexandria homes that burn regularly in older fireplaces. If the liner itself is sound, we’ll re-insulate. If it’s thin, we replace the whole thing and insulate properly from day one.

Our Gelco Chimney Liner & Rebuild Process

1. 1
   Call and talk: You reach a live person. We ask what you’re seeing, what fuel you burn, and when it started. If it’s urgent, we’ll tell you so.
2. 2
   Camera inspection: Wendell or a crew member runs a camera down the flue and records the whole thing. You watch the footage with us. No mystery, no “trust me.”
3. 3
   Plain-English verdict: We tell you what’s wrong, what’s optional, and what can wait. If it doesn’t need doing, we’ll say so.
4. 4
   Parts decision: We prefer OEM Gelco parts when they’re still available and warranted. When they’re discontinued or the OEM part is the reason it failed, we recommend a proven aftermarket equivalent and explain why. You approve the part before we order it.
5. 5
   The work: Liner pull, flue prep, new liner drop, crown or masonry rebuild as needed. One or two days for most Alexandria jobs. We protect floors, furniture, and the yard.
6. 6
   Test and documentation: We run a final camera pass and a draft verification. You get photos and footage of the finished job, plus the 90-Day Done Right Promise in writing.

What Gelco Chimney Liner & Rebuild Costs in Alexandria

Here are the numbers we see most often in Alexandria, based on two decades of jobs in the rowhouses, Old Town colonials, and mid-century homes around the city:

• Liner replacement only (single-story flue, flexible 316Ti): $2,800 to $3,600
• Liner replacement with crown rebuild: $3,800 to $5,200
• Partial chimney rebuild (top 5 to 10 courses of brick plus liner): $4,500 to $6,400
• Full chimney rebuild with new Gelco or equivalent liner: $8,000 to $14,000+ depending on height, access, and matching brick

What moves the price: flue height, whether scaffold is needed, roof pitch, and whether the existing Gelco liner is bonded in place or pulls freely. Flue access from inside the house costs less than steep-roof exterior work. Every quote is fixed before we start. Call (571) 521-4837 for a free estimate on your Gelco chimney.

Why Alexandria Homeowners Call Top Hat Chimney for Gelco Work

We’ve worked Alexandria chimneys since 1999, and that matters when you’re dealing with a liner system somebody else installed. Wendell Pike knows which Gelco runs were factory-insulated and which were wrap-insulated after the fact. He knows which Old Town rowhouse chimneys share party-wall flues and which can be sleeved without touching the neighbor’s side. And when a Gelco liner fails in a way that a new liner won’t fix because the real problem is a cracked crown or a shifted flue tile, he’ll tell you that instead of selling you a liner.

We also stock and install DuraFlex and HeatShield systems, so if a Gelco OEM part is backordered or discontinued, we’re not stuck. We’ll offer you the best available option and explain the trade-off. The price we quote on the phone is the price on the invoice. The 90-Day Done Right Promise is in writing on every job. And a live person answers our phone around the clock, which in this trade is not as common as it should be.

FAQs