Commercial Chimney Repair in Lakewood, CO
Liner, masonry, crown and flashing repairs scoped and sequenced by repair type, across every unit in one visit.
One cracked liner, one failed flashing section, one spalling crown. On a multi-unit building, these are rarely separate problems. They are one system showing stress in several places at once.
Dispatching from 12640 W Cedar Dr, Unit 7, Lakewood.
What one visit covers
- Liner assessment per flue, per unit
- Masonry, crown and flashing in sequence
- Multiple units worked the same day
- Written documentation per unit
Commercial repair covers more ground than one fix
Commercial chimney repair addresses the full scope of a building's exhaust and masonry systems, not just one visible crack.
If you manage a multi-family property or commercial building in Lakewood, you already know how quickly a small chimney issue becomes a coordination problem. One unit reports smoke smell. Another shows spalling brick on the exterior. A third hasn't had its liner checked in years.
AR Chimney Pros operates from 12640 W Cedar Dr in Lakewood. Our crew handles commercial flue system repair, a network of flue channels serving multiple appliances or units, across entire properties in a single scheduled visit.
That matters. Every extra trip means another scheduling window, another access request, another delay on a repair that Colorado's freeze and thaw cycle is making worse by the week.
What Lakewood properties face every winter
Colorado's climate accelerates chimney wear on commercial buildings faster than most property managers expect.
Jefferson County's freeze and thaw cycles run hard from October through March. Water enters a small mortar crack. It freezes overnight. It expands. By spring, what was a surface-level issue is a structural one.
Multi-unit chimney systems, configurations where multiple units share a common chimney structure, flue chase, or exhaust system, are especially exposed. Each shared wall, each exterior chase and each crown cap takes the same freeze-thaw punishment. The damage shows up unevenly: one unit gets the bulk of the moisture, the next looks fine until it doesn't.
Here's what property managers benefit from knowing: Jefferson County Building Code governs repair standards for commercial chimneys, not just new construction. Repairs done correctly protect your authorization paperwork on future inspections.
- 6 months
- October through March freeze-thaw season
- 4 categories
- Liner, masonry, crown and flashing repair
- 1 visit
- To coordinate work across every unit
A scope walkthrough, symptom by symptom
Every commercial call starts with what a unit is experiencing, not a part number.
Open a symptom below to see what's happening inside the chimney, what the fix involves, and which part of the system it points to.
A ceiling or wall shows a water stain that returns every spring
Water is finding a path at the flashing, the metal seal between the chimney structure and the roof deck. On multi-unit buildings with several penetration points, one failed section is enough to let water into the building envelope every freeze-thaw cycle.
See flashing repairA unit reports smoke smell with no obvious source
On shared chimney systems, smoke can migrate through the smoke chamber into a neighbouring unit's flue path. We run a draft analysis per flue to confirm exhaust moves correctly and there's no cross-contamination between units.
See draft analysisBrick face is spalling and flaking on the exterior chase
Spalling is moisture trapped in brick expanding and contracting through freeze and thaw. Left alone it spreads from the crown down the exterior chase. We repoint with matching mortar, not a universal mix, after the moisture source above is sealed.
See mortar repointingThe crown is cracked and still holds water after rain
A flat crown with no slope funnels water straight into the flue opening instead of shedding it. We pour or resurface with proper slope correction, not just crack filling, so water moves away from the flue.
See crown repairA scope shows cracks in the flue liner on upper floors
A cracked liner section, whether terra cotta tile, stainless steel or cast-in-place, lets exhaust gases escape into the surrounding structure, and every unit sharing that flue above the crack is affected. We assess condition per flue, per unit, before recommending repair or relining.
See relining and liner installFirebox brick shows heat damage after a gas conversion
This is common in older Denver Metro apartment buildings converted to gas units. We restore the firebox walls with code-approved refractory mortar, a heat-rated castable material matched to the appliance in each unit.
Scheduling across multiple units is handled upfront
One coordinated visit across multiple units is how AR Chimney Pros approaches every commercial job.
Property managers and HOA boards, the building or facilities managers responsible for authorizing maintenance work, often ask us the same question: how do we handle access across multiple units when residents are on different schedules?
We build the access coordination into the project plan before we dispatch. Our 20-person crew allows us to assign multiple technicians to a single property, working different units at the same time. That means a 6-unit building doesn't take six separate visits. It takes one well-organized day.
We also provide written documentation after each unit's assessment, useful for repair authorization, owner communication, and future inspection records.
Our standards on every commercial repair
AR Chimney Pros applies the same material and process standards to every unit on every commercial property.
- Liner assessments documented per flueBefore any repair recommendation is made.
- Matching mortar formulationsNot a universal mix applied over everything.
- Crown resurfacing includes slope correctionNot just crack filling.
- Step and counter-flashing profilesMatched to the roof pitch on each unit.
- Heat-rated refractory materialsMatched to the appliance in each unit.
- Before and after notes per unitJefferson County Building Code compliance verified for each repair category.
- Three coats of waterproof sealantOn exposed masonry after structural work, not two.
How we execute commercial chimney repair
Every commercial repair project at AR Chimney Pros follows a three-phase protocol.
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1
Diagnostics
We begin with a full property walkthrough before any repair work starts. Each chimney, flue opening and exterior chase is assessed and documented. For multi-unit properties, this phase identifies which units share flue channels and which need isolated repairs. We don't skip units because they look fine from the outside.
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2
Implementation
Repair work is sequenced top to bottom: crown and cap first, then liner and flashing, then masonry and firebox. Addressing moisture entry points before repairing internal components protects the work you're paying for. Our crew coordinates across units at the same time to keep property disruption low.
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3
Post-service testing
After all repair work is complete, we run a draft analysis: a test of airflow through each flue to confirm exhaust moves correctly and no cross-contamination exists between units. We also conduct a visual post-cure check on all refractory and crown work before finalizing documentation.
See draft analysis
Related commercial services
Repair pairs naturally with ongoing cleaning and board-level maintenance.
Areas we serve
AR Chimney Pros dispatches commercial repair crews across the greater Denver Metro from our Lakewood location.
We regularly serve commercial and multi-family properties in Lakewood, Denver, Arvada, Westminster, Wheat Ridge, Englewood, Littleton, Edgewater, Golden, Aurora, Thornton, Highlands Ranch, Centennial, Broomfield, Boulder, and surrounding communities throughout Jefferson, Denver and Arapahoe counties.
- Lakewood
- Denver
- Arvada
- Westminster
- Wheat Ridge
- Englewood
- Littleton
- Edgewater
- Golden
- Aurora
- Thornton
- Highlands Ranch
- Centennial
- Broomfield
- Boulder
Frequently asked questions
Questions property managers and HOA boards ask most often.
How much does commercial chimney repair cost for a multi-unit building?
Multi-unit scopes vary by unit count, repair category and liner condition across the building. Call 720-608-7668 with your unit count and property type for an accurate scope estimate organized by repair category.
Can liner, masonry, crown and flashing all get done in one visit?
Yes, AR Chimney Pros coordinates all four repair categories in a single scheduled visit. Our 20-person crew allows multiple technicians to work different units at the same time. That structure prevents the multi-trip delays that let Colorado freeze-thaw cycles worsen damage between appointments.
What does the authorization and scheduling process look like for property managers?
Access coordination is built into the project plan before dispatch. We provide written documentation per unit after each assessment, useful for repair authorization, owner communication and future inspection records. Property managers get a repair scope organized by category before work begins, not after.
Why does masonry sequencing matter on a multi-unit flue system?
Skipping sequence, addressing internal liner before sealing exterior moisture entry points, undoes the repair you paid for. We run liner, crown, flashing and refractory work in the correct order every time, top to bottom.
How do I know the repairs are actually complete after the crew leaves?
Post-service draft analysis confirms airflow through every repaired flue. We also run a visual post-cure check on all refractory and crown work. Written before-and-after documentation per unit is delivered at project close, not just a verbal confirmation on-site.
Does Jefferson County require permits for commercial chimney repair work?
Permit thresholds vary by scope, so confirm directly with Jefferson County Building Services for your project. We verify Jefferson County Building Code compliance for each repair category during the diagnostic phase, before work begins.
More questions about your property? Read the full FAQ.
Ready to scope your commercial chimney repair
AR Chimney Pros handles commercial chimney repair for multi-unit and commercial properties throughout the Lakewood area.
Call us at 720-608-7668 or email info@archimneypros.com to schedule a property walkthrough. Tell us your unit count and property type and we'll confirm crew availability and provide a repair scope organized by category.