Fast, Reliable Chimney Liner & Rebuild Across Boulder
Chimney liner installation and chimney rebuilds in Boulder typically run $2,800-$8,500 depending on scope, and most projects are completed in a single day once materials are on hand. At Hearthstone Chimney Co., we’ve been relining and rebuilding chimneys in Boulder since 1984, and we know the specific challenges this city’s altitude, wind exposure, and aging housing stock present. Our Chimney Liner & Rebuild team carries DuraFlex and Olympia Chimney liners sized for Boulder’s common flue dimensions, and we stock the professional-grade materials needed for the terra-cotta failures and mortar joint damage that the Flatirons’ freeze-thaw cycles produce. Call (844) 803-1545 - a live person answers, 24 hours a day.
Why Hearthstone Chimney Co. Is Boulder’s Preferred Chimney Liner & Rebuild Company
We’ve worked on chimneys along Baseline Road, in the Mapleton Hill historic district, and throughout Table Mesa for over 42 years. That longevity matters in a city where historic preservation rules and strict air-quality regulations mean you need a crew that understands compliance, not just construction.
Our Level-2 camera inspections end with photos you can see and a plain-English verdict - documented like an engineer, explained like a craftsman. Boulder homeowners tell us this transparency is why they call us back. The 90-Day Done Right Promise backs every liner and rebuild job in writing, no arguing: if it’s not right, we make it right.
Response time to Boulder addresses in ZIP codes 80301, 80323, 80328, and 80329 is typically same-day or next-day for liner failures and backdraft emergencies. We don’t route calls to a queue - a live person answers the phone every hour of every day.
Our technicians are background-checked, uniformed, and trained specifically on Boulder’s common chimney configurations: oversized 1910s-1920s masonry flues, 1960s-70s terra-cotta tile liners, and the insert-to-flue mismatches that historic preservation instincts often create.
Our Chimney Liner & Rebuild Services in Boulder
Stainless Steel Liner Installation
Boulder’s Chinook winds and rapid freeze-thaw cycles destroy unlined or poorly lined masonry faster than almost anywhere on the Front Range. A stainless steel liner from Olympia Chimney or DuraFlex creates a sealed, corrosion-resistant flue path that contains combustion byproducts and protects the surrounding brick and mortar. We size these precisely for your appliance - critical at 5,430 feet, where lower combustion efficiency already produces more unburned particulate. Most stainless installations in Boulder homes run $2,800-$4,200 for a standard single-flue chimney.
Flexible Liner Installation
Older Boulder chimneys, especially the offset flues common in Mapleton Hill Victorians and south Boulder ranches, often can’t accept a rigid liner without extensive demolition. A flexible DuraFlex liner navigates offsets and slight bends while maintaining the same 316Ti stainless integrity. We pull these from the top down, minimizing disturbance to historic plaster and finishes that preservation-minded homeowners want protected. Flexible liner jobs in Boulder typically fall between $3,200-$5,000, with the premium reflecting the specialized installation technique.
Liner Replacement
When an existing terra-cotta liner has cracked from freeze-thaw cycling - we see this constantly in 1960s-70s Table Mesa and Baseline ranch homes - partial replacement isn’t an option. The entire liner must come out. We remove the damaged tile, inspect the surrounding masonry with our camera system, and install a new stainless or flexible system sized correctly for your current heating appliance. Not the appliance from 1972. The one burning now. Liner replacement in Boulder generally costs $3,500-$5,500 depending on flue height and access.
Partial Chimney Rebuild
Boulder’s 100-mph Chinook gusts don’t just blow off caps. They drive water into hairline mortar cracks, which freeze overnight and expand, spalling brick and destabilizing the structure. A partial rebuild addresses the upper courses, crown, and often the flue itself while preserving sound lower masonry. We match existing brick and mortar color where possible - important in historic districts with design review - and we document every stage with photos. Partial rebuilds in Boulder start around $4,500 and can reach $7,500 if the flue must be relined simultaneously.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
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.
Trusted Brands We Service in Boulder
We work exclusively with professional-grade materials - no builder-grade substitutes that fail in Boulder’s harsh exposure. Our trucks carry DuraFlex flexible liners, Olympia Chimney rigid stainless systems, and Famco termination components sized for local installations. Because we stock these rather than ordering per job, Boulder customers get faster turnaround and no delay waiting for parts to ship from out of state. The brands we use are the same ones specified by chimney engineers for high-wind, high-altitude installations: materials rated for the conditions your chimney actually faces, not the conditions it would face at sea level.
Common Chimney Liner & Rebuild Problems We See in Boulder Homes
- Insert-to-flue mismatch in historic homes. Homeowners in Mapleton Hill and similar districts install a modern EPA-certified insert for air-quality compliance, but leave the original 10×10 or 12×12 flue unlined. The oversized cavity pools condensate and creosote, creating a fire hazard and defeating the insert’s efficiency. We reline these to the insert’s exact exhaust diameter.
- Terra-cotta tile failure in 1960s-70s ranch chimneys. Table Mesa and Baseline neighborhoods are full of these. Fifty to sixty years of freeze-thaw cycling at Boulder’s elevation turns the original liner into cracked, shifting segments that no longer contain flue gases.
- Crown and mortar damage from Chinook wind-driven rain. Boulder’s downslope wind events force water into joints that would stay dry in gentler climates. Once water enters, overnight freeze expansion completes the destruction. Partial rebuilds with proper crown slope and overhang solve this.
- Backdraft and poor draw on no-burn days. When Stage 1 or Stage 2 restrictions lift and residents finally burn, a damaged liner or cold, oversized flue won’t establish proper draft. The result is smoke spillage and dangerous CO conditions. A properly sized, insulated liner fixes the draw problem.
Pricing for Chimney Liner & Rebuild in Boulder, CO
We’ve been transparent about costs since 1984. Here’s what chimney liner and rebuild work actually costs in the Boulder market:
| Service | Typical Range in Boulder |
|---|---|
| Stainless steel liner (single flue) | $2,800 - $4,200 |
| Flexible liner with offset navigation | $3,200 - $5,000 |
| Full liner replacement (remove + install) | $3,500 - $5,500 |
| Partial rebuild (upper courses + crown) | $4,500 - $7,500 |
| Full chimney rebuild with new liner | $6,500 - $8,500+ |
What moves you within or above these ranges: flue height (two-story Mapleton Hill homes run taller than ranch rambles), accessibility (steep roof pitches common in the foothills), the condition of existing masonry, and whether the project requires historic district coordination. We provide no-hassle upfront pricing - the number on the estimate is the number on the invoice. No surprises. Free estimates, and we honor our $50 off any repair over $250, plus a permanent 5% senior and veteran discount. Call (844) 803-1545 for an exact quote on your chimney.
We Also Serve Cities Near Boulder
Our Chimney Liner & Rebuild in Boulder coverage extends to Louisville, Lafayette, Erie, and Broomfield. The same Chinook wind patterns and freeze-thaw stresses affect chimneys throughout this corridor, and we carry the materials and expertise to handle liner and rebuild work across all four communities. Whether you’re in downtown Boulder or out toward the Lafayette border, we’re the crew that shows up when we say we will.
Serving Boulder, CO - Our Local Coverage Area
We’re based in the Boulder area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Chimney Liner & Rebuild in Boulder
We typically respond same-day or next-day to liner failures, backdraft emergencies, and blocked flue calls in Boulder. Our dispatch prioritizes carbon monoxide risks and active leaks, and a live person answers the phone 24/7 to coordinate. Call (844) 803-1545 - we’ll give you a firm arrival window, not a vague callback promise.
Yes. We regularly work in Mapleton Hill, Table Mesa, Baseline, and throughout ZIP codes 80301, 80323, 80328, and 80329. Historic district work is familiar territory - we document with photos, match materials where required, and coordinate with design review when the project involves visible exterior changes.
Yes. Our phones are staffed by a live person 24 hours a day, 7 days a week, including holidays. For true emergencies - suspected CO backdraft, visible flue collapse, or post-wind-event structural damage - we dispatch after hours. Not every call requires midnight response, but if it does, we’re equipped to handle it.
Boulder pricing runs roughly 10-15% above metro Denver for equivalent work, reflecting higher material transport costs, steeper roof access common in foothill-adjacent homes, and the specialized knowledge required for historic preservation compliance. We offset this with our $50 off repairs over $250 and permanent 5% senior and veteran discounts. Free estimates mean you know the exact number before work begins - call (844) 803-1545.
Every job is backed by our 90-Day Done Right Promise in writing - if it’s not right, we make it right, no paperwork and no arguing. Beyond that, DuraFlex and Olympia Chimney liners carry manufacturer warranties that we register on your behalf. The combination means you’re covered for installation quality and product integrity. We’ve honored this promise in Boulder for over 42 years, and we plan to be here for 42 more.
Ready to get your chimney liner or rebuild done right? Call Hearthstone Chimney Co. at (844) 803-1545 for a free estimate. We’ll inspect with our camera system, show you the photos, explain what you’re seeing in plain English, and give you upfront pricing - the number on the estimate is the number on the invoice. We also handle Chimney Cleaning & Sweep in Boulder and Chimney Repair in Boulder if your inspection reveals additional needs. Done right - and we stand behind it.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving Boulder since 1984.