Chimney Liner & Rebuild in Boulder - Inspected on Camera, Then Priced in Writing

Trusted Chimney Liner & Rebuild for Boulder Homeowners

A Chimney Liner & Rebuild in Boulder typically costs $2,800-$7,500 depending on whether you’re replacing a damaged flue liner or rebuilding the full structure, and most projects are completed in one to three days. Emberly Chimney Cleaners Boulder has completed more than 38,000 chimney inspections and cleanings since 2009, every one with a written price before work started and a documented photo record when finished. We serve homeowners across Boulder, from Mapleton Hill to Martin Acres to the foothills above Chautauqua, with background-checked, uniformed technicians and live phone support at (970) 598-0453, 24 hours a day.

Call (970) 598-0453

Boulder’s freeze-thaw cycles and sudden spring hailstorms punish chimney masonry. We’ve pulled collapsed clay flue tiles out of homes in Newlands where water got in through a cracked crown, and we’ve found stainless steel liners in Table Mesa corroded by decades of acidic condensation. The problem isn’t always visible from the ground. That’s why our home page explains our standard: NFPA 211 Level 2 inspection with a camera down the flue, documented photo record included, written price before any work starts. No exceptions.

Corrine Halstead leads Emberly Chimney Cleaners Boulder under the Haven Standard, which we adopted at founding in 2009. Clause 4 of the Haven Standard requires a documented photo record on every job, a practice we started years before insurers or regulators asked for it. When you need a liner replacement or full chimney rebuild, you get the photos, the written scope, the written warranty, and the 365-Day Done Right Promise: if it’s not done right, we make it right.

What Our Chimney Liner & Rebuild Service Includes

Stainless Steel Liner Installation

A stainless steel liner is a corrugated or smooth metal tube inserted into your existing flue to contain combustion byproducts and protect masonry from heat and acid. You need one when clay flue tiles are cracked, spalled, or missing, or when you’re converting to a gas insert that requires a smaller, properly sized venting path. In Boulder, we install DuraFlex and Olympia Chimney stainless liners rated for wood, pellet, and gas appliances, with a camera verification scan before and after installation to confirm full coverage and proper connection to the appliance collar.

Flexible Liner Installation

Flexible liners are stainless steel tubes that navigate offset flues, chimney bends, or structural transitions that rigid pipe cannot follow. You need a flexible liner when your chimney has a slight offset between floors, when you’re lining a historic masonry chimney in a Boulder landmark district home, or when access is limited and rigid sections won’t fit. Our crews carry DuraFlex flexible liner in multiple diameters and use a cone-pull installation method with video verification at every joint to ensure no gaps or wrinkles that could trap creosote.

Liner Replacement

Liner replacement means removing a failed or obsolete liner, whether clay tile, aluminum, or deteriorated stainless steel, and installing a new system appropriate for your fuel type and appliance. You need replacement when inspection reveals cracked tiles, holes, or gaps that allow combustion gases to leak into wall cavities, or when an old liner is improperly sized for a new high-efficiency appliance. We document the full extraction with photos, provide a written scope showing what we found and what we’re installing, and back the new liner with the Haven Standard’s written warranty and 365-Day Done Right Promise.

Partial Chimney Rebuild

A partial rebuild addresses the upper portion of the chimney, typically from the roofline up, where masonry deterioration, spalling brick, or a failed crown has compromised structural integrity. You need a partial rebuild when the lower chimney is sound but the top courses are crumbling, the crown is cracked through to the flue, or the chimney has begun to lean above the roof plane. In Boulder’s wind-exposed neighborhoods like Pine Brook Hills and Dakota Ridge, we see this frequently after hail season; we rebuild with matching brick or stone, install a proper concrete crown with drip edge, and integrate a new cap and liner as needed.

Full Chimney Rebuild

A full chimney rebuild means dismantling and reconstructing the entire structure from the foundation or fireplace throat upward, including the firebox, smoke chamber, flue, and exterior masonry. You need a full rebuild when multiple systems have failed, when the chimney has separated from the house, or when earthquake or foundation settlement has caused structural failure throughout. We’ve completed full rebuilds in Boulder’s older neighborhoods like Goss Grove and Whittier, where original 1920s chimneys have exceeded their service life; every rebuild includes engineered drawings when required, permit coordination with the City of Boulder, and full documentation under Haven Standard Clause 4.

Liner Repair

Liner repair addresses localized damage without full replacement, using techniques like HeatShield cerfractory resurfacing for cracked clay tiles or stainless steel patch kits for minor breaches. You need repair when damage is limited to a short section, when budget constraints make full replacement impractical, or when the liner is otherwise sound but has a single point of failure. We never recommend repair without camera evidence you can see yourself; if the damage extends beyond what repair can safely address, we’ll show you exactly where and explain why replacement is the honest recommendation.

Brands We Service for Chimney Liner & Rebuild

We source materials through Haven’s buying network specifically to keep customer prices honest, and we install and service liners and components from DuraFlex, HeatShield, Gelco, and Copperfield. DuraFlex flexible stainless liners are our standard for offset flues and tight clearances; we’ve installed hundreds in Boulder County homes and stock the full range of diameters and appliance adapters. HeatShield’s cerfractory resurfacing system lets us restore cracked clay flue tiles when the damage is contained and the structure is otherwise sound, a repair we’ve used successfully in historic homes on Boulder’s west side where preserving original masonry is a priority.

Whether you have a Gelco chimney cap, a Copperfield stainless liner, or any other make, we can help. Our technicians carry common repair parts and adapter fittings on every truck, and if your system uses a brand we don’t stock, we’ll source it through our network and give you a written price before ordering anything. No surprises, no pressure.

Before

After

Signs You Need Chimney Liner & Rebuild Right Now

• White staining or efflorescence on exterior brick. This means moisture is moving through the masonry, dissolving salts, and depositing them on the surface. In Boulder’s dry climate, visible efflorescence usually indicates a failed crown or cracked flue liner that’s letting combustion condensation escape into the wall. Left alone, the freeze-thaw cycle will spall the brick face and compromise structural integrity.
• Flakes or chunks in the fireplace or cleanout. These are pieces of clay flue tile that have detached due to thermal shock, acid corrosion, or physical damage. Once tiles begin shedding, the liner’s protective function is gone, and combustion gases can leak into living spaces. We find this frequently in older Boulder homes with original terracotta liners that have seen decades of temperature cycling.
• Smoke or odors entering the home during operation. This means exhaust is not exiting properly, either because the liner is blocked, breached, or improperly sized for the appliance. Carbon monoxide is odorless and invisible, so any smoke intrusion is a warning that the venting system has failed. Stop using the appliance and call for inspection.
• Visible cracks in the chimney crown or missing mortar joints. The crown is your chimney’s roof; when it fails, water enters the masonry core and accelerates every other form of deterioration. Boulder’s spring hailstorms and intense UV at 5,400 feet degrade crowns faster than at sea level. A cracked crown is the beginning of a partial or full rebuild if not addressed promptly.
• A new appliance installed without liner verification. High-efficiency gas inserts and wood stoves require properly sized liners for safe operation. An oversized flue causes condensation and creosote buildup; an undersized one restricts draft and can force carbon monoxide into the home. If your installer didn’t camera-scan and document the liner condition, you need verification before the first heating season.

Our Chimney Liner & Rebuild Process - Step by Step

1. 1
   NFPA 211 Level 2 Inspection with Camera Scan. We start every liner and rebuild project with a full interior and exterior inspection, including a video camera scan of the entire flue length. You watch the live feed with our technician and receive a documented photo record under Haven Standard Clause 4. We note liner condition, creosote class, masonry integrity, crown and cap status, and clearances to combustibles.
2. 2
   Written Scope, Written Price, Written Warranty. Before any work begins, we deliver a written proposal with exact specifications, material selections from our approved brands, and a fixed price. Haven Standard Clause 1, H.A.V.E.N. “Have it in writing,” means no verbal estimates, no “we’ll see how it goes” pricing, and no charges added after work starts. You approve in writing or we don’t proceed.
3. 3
   Permit Coordination and Material Procurement. For rebuilds requiring City of Boulder permits, we prepare and submit documentation, schedule inspections, and coordinate with the building department. Materials are ordered through Haven’s buying network and verified against the written scope before delivery to your property.
4. 4
   Professional Installation or Rebuild. Background-checked, uniformed technicians execute the work with the documented photo record running throughout. For liner installations, we verify every joint and termination with camera scan. For rebuilds, we match existing masonry where possible, install proper crowns with drip edges, and integrate caps and spark arrestors as specified.
5. 5
   Final Verification and Documentation. We complete a post-work camera scan, combustion analysis where applicable, and visual inspection of all components. You receive the final photo record, written warranty, and 365-Day Done Right Promise documentation. If anything isn’t right, we make it right, no argument.

How Much Does Chimney Liner & Rebuild Cost in Boulder?

Chimney Liner & Rebuild Near Boulder - Our Service Area

Emberly Chimney Cleaners Boulder serves the full metro area including Chimney Liner & Rebuild in Niwot, Chimney Liner & Rebuild in Louisville, and surrounding communities from Lafayette and Erie to Broomfield, Longmont, Westminster, Frederick, Arvada, Thornton, and Wheat Ridge. Response scheduling is typically within three to five business days for non-urgent liner and rebuild consultations, faster when safety conditions warrant. Foothill properties above 6,000 feet in areas like Gold Hill and Jamestown may require additional scheduling coordination for material delivery and crew access.

Frequently Asked Questions - Chimney Liner & Rebuild in Boulder

Schedule Your Chimney Liner & Rebuild Service in Boulder Today

Call (970) 598-0453 for your free estimate. You’ll speak to a live person, 24 hours a day, who can schedule your NFPA 211 Level 2 inspection with camera scan and documented photo record. Corrine Halstead and the team at Emberly Chimney Cleaners Boulder will deliver a written price before any work starts, back every job with the 365-Day Done Right Promise, and show you exactly what we found so you can decide with confidence. No obligation, no pressure, no surprises.

Written by Corrine Halstead, Owner at Emberly Chimney Cleaners Boulder, serving Boulder since 2009.