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.
Before
After
Before
After
Before
AfterTrusted Chimney Liner & Rebuild for Denver Homeowners
Chimney liner replacement and chimney rebuilds in Denver typically cost $2,800-$8,500 depending on scope, with partial rebuilds starting lower and full rebuilds with stainless steel liners at the upper end. Most Level Two Chimney Denver projects are quoted in writing during the first visit and scheduled within one to two weeks. Call (720) 674-7312 to book a free camera inspection and written estimate.
We’ve inspected and cleaned more than 38,000 chimneys since 2009, and a growing share of our Denver Chimney Liner & Rebuild work involves liners that have failed or were never installed to begin with. In neighborhoods like Congress Park, Park Hill, and Berkeley, we regularly open flues to find terra cotta liners cracked by freeze-thaw cycles, or no liner at all in pre-1940s brick stacks that were grandfathered in before modern codes. The result is the same: combustion gases leaking into wall cavities, creosote accumulating in hidden voids, and homeowners who didn’t know there was a problem until they smelled smoke in an upstairs bedroom or saw water stains around the thimble.
Our approach is inspection-first, always. Every chimney liner and rebuild job we quote in Denver starts with an NFPA 211 Level 2 camera scan down the full flue length. We document what we find with photos and video, then deliver a written price, written scope, and written warranty before any work begins. That’s Clause 1 of the Haven Standard, and it’s how we’ve operated since Corrine Halstead founded Level Two Chimney Co. in 2009. No verbal estimates. No surprises after the crew arrives.
What Our Chimney Liner & Rebuild Service Includes
Stainless Steel Liner Installation
A stainless steel liner is a continuous metal tube dropped down the flue to contain combustion byproducts and protect surrounding masonry from heat and acid damage. You need one when your terra cotta liner is cracked, spalled, or missing sections, or when you’re converting a wood-burning fireplace to a gas insert that requires a smaller, properly sized vent. In Denver, we typically specify 316Ti alloy for wood-burning applications and 304 for gas, sourced through our Haven buying network from DuraFlex and Olympia Chimney to keep pricing honest. Every stainless installation includes a new top plate, insulation mix to maintain flue temperature, and a photo record of the full run before we button it up.
Flexible Liner Installation
Flexible liners are corrugated stainless tubes that navigate offset flues, chimney bends, or structures where a rigid pipe won’t fit. They’re essential in older Denver homes where the chimney was built around a central hearth and shifts direction between floors. We see this frequently in Tudor-style houses in Hilltop and Crestmoor, where a straight rigid liner would require dismantling significant masonry. Our crews measure the flue path with a video scan first, then source the correct diameter and length from DuraFlex or Olympia Chimney’s flexible product lines. The installation includes pulling a proper-sized liner, securing the top termination, and pressure-testing gas connections where applicable.
Liner Replacement
Liner replacement means removing a failed or obsolete liner and installing a new one to current NFPA 211 and local code. In Denver, we replace liners that have deteriorated from decades of acid condensation, thermal shock, or improper original sizing. An undersized liner causes smoke backup; an oversized one cools too quickly and deposits creosote. We determine correct sizing using the appliance’s BTU output and the flue’s height and configuration, not guesswork. The old liner comes out, the flue is swept and camera-inspected for hidden damage, and the new system is documented with before-and-after photography under Haven Standard Clause 4.
Partial Chimney Rebuild
A partial rebuild addresses the upper section of the chimney, typically from the roofline up, where freeze-thaw damage, spalling brick, and deteriorated mortar are most severe. Denver’s 300+ days of sun followed by rapid temperature drops create expansion-contraction stress that destroys crowns and upper courses faster than protected lower masonry. We rebuild with matching brick where possible, pour a new concrete crown with proper overhang and drip edge, and install a new cap and flue termination. If the liner is still serviceable, we preserve it; if inspection shows damage, we quote liner work as part of the same scope with one written price for everything.
Full Chimney Rebuild
A full rebuild is necessary when the chimney structure is compromised below the roofline, with widespread spalling, leaning, or separated courses that threaten stability. In Denver, we see this in homes built before 1950 with soft, under-fired brick and lime mortar that has turned to powder. A full rebuild requires careful dismantling, salvaging usable brick, rebuilding to current seismic and clearance codes, and installing a new stainless or flexible liner sized to the appliance. It’s the most extensive chimney project we handle, and we don’t quote it without a full Level 2 inspection, structural assessment, and written scope that specifies materials, timeline, and warranty terms.
Liner Repair
Liner repair is targeted work on localized damage: a cracked flue tile that can be patched with a HeatShield cerfractory sealant, a missing section that accepts a stainless steel partial liner, or a smoke chamber that needs parging to reduce turbulence and creosote buildup. Not every damaged liner needs full replacement, and we’re explicit about when repair is sufficient versus when replacement is the only safe option. In Denver’s Stapleton and Lowry developments, we’ve saved homeowners significant cost by repairing relatively new liners damaged by chimney fires or improper fuel choices, always documented with camera evidence they can review themselves.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Brands We Service for Chimney Liner & Rebuild
We source and install materials from DuraFlex, HeatShield, Gelco, and Olympia Chimney through Haven’s buying network, which was built specifically to keep customer prices honest by eliminating distributor markups. DuraFlex’s flexible stainless liners are our go-to for offset flues in Denver’s older housing stock; we’ve installed hundreds of their 316Ti and 304 products and stock common diameters and termination components. HeatShield’s cerfractory resurfacing system lets us repair terra cotta liners that have minor cracking or joint gaps without full replacement, a cost difference we explain with camera footage showing exactly where the material is applied and how thick the coating is.
Gelco and Olympia Chimney supply our rigid stainless components and specialty caps for multi-flue and custom applications. Whether you have a DuraFlex system that needs updating, a HeatShield repair that requires inspection, or any other make of liner or cap, we can evaluate it, document its condition, and quote appropriate work. Our free second opinion applies to any written estimate you’ve received from another company; bring us their scope and we’ll review it against what our camera shows.
Before
AfterSigns You Need Chimney Liner & Rebuild Right Now
- White or orange staining on exterior brick. These efflorescence and rust deposits mean moisture and combustion acids are migrating through the masonry because the liner is cracked or missing. In Denver’s dry climate, visible staining usually indicates a problem that has progressed significantly; the absence of rain doesn’t prevent condensation damage inside the flue.
- Smoke or odors entering living spaces. A properly lined chimney draws all combustion byproducts up and out. If you’re smelling smoke in an upstairs room, near the fireplace, or in the basement, flue gases are leaking through liner breaches into wall cavities or floor joist spaces. This is a carbon monoxide exposure risk and warrants immediate inspection.
- Visible cracks or missing chunks in the flue. Terra cotta liners flake, spall, and crack with thermal cycling. A Level 2 camera scan reveals what you cannot see from the firebox; we’ve found complete liner collapses in Denver chimneys where the homeowner only knew something was wrong because sweeping debris wouldn’t come clean.
- Water leaking around the fireplace or in the basement. A damaged crown, missing cap, or failed flashing lets water in, but so does a liner that allows condensation to saturate the masonry from inside. In Denver’s spring snowmelt season, we see a spike in calls from Baker and Highland neighborhoods where freeze-thaw has opened new paths for water intrusion.
- It’s been more than five years since any inspection. NFPA 211 recommends annual inspection for active fireplaces and at least Level 2 inspection at property transfer or after any chimney fire or significant seismic event. Denver’s clay soils and occasional seismic activity stress chimney structures; many homeowners who bought between 2015 and 2025 have never had a camera down their flue.
Our Chimney Liner & Rebuild Process - Step by Step
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Schedule and confirm. Call (720) 674-7312 and you’ll reach a live person, any time of day. We assign a named technician, run a background check confirmation, and text you when they’re en route. You’ll know who’s coming and when.
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NFPA 211 Level 2 camera inspection. Our technician scans the full flue length with a high-resolution camera, documenting liner condition, creosote class and thickness, joint integrity, smoke chamber shape, and any obstructions or animal evidence. This footage becomes your record under Haven Standard Clause 4.
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Written diagnosis and price. We explain what the camera showed, what it means for safety and function, and what options exist. Then we deliver a written price for each option, with scope and warranty spelled out. No work starts until you approve in writing.
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Scheduled execution. Liner installations and rebuilds are booked, not rushed. We order materials through our Haven network, coordinate any permit requirements with Denver’s Community Planning and Development office, and arrive with everything needed to complete the scope we quoted.
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Documentation and follow-up. You receive a photo record of completed work, written warranty terms, and a summary of any maintenance items to watch. The 365-Day Done Right Promise means if anything isn’t right, we make it right. Our archive of your chimney’s condition grows with every visit.
How Much Does Chimney Liner & Rebuild Cost in Denver?
| Service | Typical Range in Denver | What Affects Price |
|---|---|---|
| Stainless steel liner installation | $2,800-$4,500 | Flue diameter, height, number of appliances, insulation requirements |
| Flexible liner installation | $2,400-$4,200 | Length, diameter, number of bends, termination type |
| Liner replacement (remove and replace) | $3,200-$5,500 | Condition of existing liner, accessibility, masonry repair needed |
| Partial chimney rebuild | $3,500-$7,000 | Height above roof, brick matching, crown complexity, liner integration |
| Full chimney rebuild | $6,500-$12,000+ | Total height, foundation condition, seismic requirements, liner system |
| Liner repair (HeatShield, partial) | $1,200-$2,800 | Extent of damage, accessibility, whether smoke chamber work is included |
These ranges reflect what we quote in Denver’s market for typical residential flues serving one or two appliances. Several factors push prices higher or lower. Taller chimneys require more liner material and longer labor. Multi-flue structures need separate liners or custom configurations. Hidden damage discovered during removal, such as a deteriorated smoke shelf or compromised firebox, adds scope we document before proceeding.
How to avoid overpaying: get a second opinion on any written estimate, which we provide free. Be wary of quotes given without a camera inspection; you cannot price liner work accurately from a flashlight look. And ask what documentation you’ll receive; a verbal “it’s fine” without photos leaves you with no recourse if problems emerge.
What’s included in our free estimate: the Level 2 camera inspection, written diagnosis, itemized pricing for each option, and no obligation to proceed. Call (720) 674-7312 to schedule.
Chimney Liner & Rebuild Near Denver - Our Service Area
We complete liner and rebuild projects throughout Denver proper and surrounding communities including Chimney Liner & Rebuild in Englewood, Chimney Liner & Rebuild in Greenwood Village, Thornton, Aurora, Wheat Ridge, Centennial, Arvada, Westminster, Lakewood, Littleton, and Brighton. Response times vary by season; during peak pre-winter scheduling, we typically book inspections within 3-5 business days and liner or rebuild work within one to two weeks of estimate approval. Emergency situations involving active leaks or post-chimney-fire assessment receive priority scheduling.
Serving Denver, CO - Our Local Coverage Area
We’re based in the Denver area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - Chimney Liner & Rebuild in Denver
Chimney liner and rebuild work restores the safe containment and venting of combustion byproducts through your chimney structure. The liner protects masonry from heat and acid damage; the rebuild addresses structural deterioration of the chimney itself. Level Two Chimney Denver performs both, starting with camera inspection to determine which is needed and to what extent.
A straightforward stainless steel liner installation typically takes one day; a partial rebuild takes two to three days; a full rebuild may extend to a week depending on weather and material curing times. We specify timeline in our written scope before you approve any work. Call (720) 674-7312 for a project-specific estimate.
Chimney liner work in Denver ranges from $1,200 for minor repairs to $12,000 or more for full rebuilds with premium materials. Most stainless steel liner installations fall between $2,800 and $4,500. We deliver a written, itemized price after camera inspection, not before. Call (720) 674-7312 for a free estimate.
Yes. We install and repair systems from DuraFlex, HeatShield, Gelco, and Olympia Chimney, and we evaluate any existing brand for condition and code compliance. Our Haven buying network sources materials directly to control customer cost. Bring us any manufacturer’s documentation you have.
We prioritize post-chimney-fire inspections, active leak situations, and carbon monoxide concerns with same-week scheduling when possible. Our live phone support runs 24 hours a day, 7 days a week to assess urgency and assign appropriate response. Not every situation requires immediate construction; sometimes inspection and temporary securing is the right first step.
Every job carries our 365-Day Done Right Promise: if it’s not done right, we make it right. Specific liner warranties vary by material and manufacturer, DuraFlex and Olympia Chimney offer lifetime warranties on certain stainless products, and we pass those terms through in writing. Haven Standard Clause 1 requires written warranty documentation before work starts.
Clear a path to the fireplace and ensure roof access is available if exterior work is planned. Remove fragile items from the mantel and nearby shelves; vibration from masonry work can shift objects. We’ll confirm any specific preparation when we schedule, and our technician texts when en route so you know exactly when to expect them.
Schedule Your Chimney Liner & Rebuild Service in Denver Today
Call (720) 674-7312 any time to speak with a live person and book your free Level 2 camera inspection. We’ll deliver a written price, written scope, and written warranty before any work begins, backed by the 365-Day Done Right Promise and the documentation standards we’ve maintained since 2009. Whether you need a liner repair in Congress Park or a full rebuild in Hilltop, we’ll show you what we found and exactly what it costs.
Written by Corrine Halstead, Owner at Level Two Chimney Co., serving Denver since 2009.