MINNEAPOLIS · CHIMNEY REMOVAL

Full Structural Assessment Completed Before a Single Brick Is Moved

Q: Can you remove just one flue from a multi-flue chimney stack?

Sometimes, but not always. In older Minneapolis homes, the masonry of adjacent flues in a shared stack may provide lateral support to each other. Before any partial removal is scoped, ChimTech assesses whether the remaining flue structure can stand independently. If it can't, the scope changes. That determination is made before authorization, not after demolition starts.

Q: Will removing the chimney affect my home's structural framing?

It can, which is why the structural assessment comes before the scope is written. In some older Minneapolis homes, the original framing used the chimney as a bearing element at the floor joists. ChimTech traces the chimney's load relationship to the surrounding framing at every level. If floor joists need to be sistered after the footing is removed, that work is included in the scope and coordinated as part of the same project.

We map above-roofline to basement footing before the scope is set — full-stack chimney takedown across Minneapolis.

WHY HOMEOWNERS REMOVE

Three Situations Where Minneapolis Homeowners Choose Chimney Removal

Chimney removal in Minneapolis almost always traces back to one of three specific situations.

System Conversion

A pre-1950 furnace flue the new forced-air or gas system no longer uses — still admitting cold air in winter and flagged on every home inspection. Removal reclaims floor space and ends the upkeep on a system that no longer serves a purpose.

Structural Compromise

A Level 2 or Level 3 inspection finds a liner past relining, a firebox with failed structural masonry, or a stack showing active lean — conditions where removal is the more economical, permanent answer than full reconstruction.

Renovation

A gut-renovated foursquare or craftsman bungalow with a chimney footprint running through floor space the new plan needs. Removal frees that square footage cleanly.

Each situation points to the same next step: understanding what the chimney actually touches before committing to a removal scope.

Footing → Crown

Full Stack Mapped

City Permit

Filed Direct with Minneapolis

One Crew

Assessment to Inspection

1–3 Days

Typical Project Window

THE MULTI-FLUE QUESTION

Why Multi-Flue Older Minneapolis Homes Face the Removal Question More Often

Minneapolis’s pre-1950 housing stock regularly contains two or three flues in a single chimney stack.

Original construction often included one flue for the fireplace, one for the furnace, and sometimes a third for a kitchen range that hasn’t been in service since the 1940s. When a homeowner converts to forced-air heat, one or more becomes an abandoned flue — a passage with no active appliance connected.

An abandoned flue still admits moisture, still drops cold air into the house in January, still creates a spring pathway for animals, and still appears on every home inspection report as an open item.

What surprises most homeowners: removing one flue from a shared stack isn’t always structurally straightforward. The remaining flue may depend on the masonry of the one being removed for lateral support — a relationship that has to be assessed before any brick moves. ChimTech evaluates the full stack before scoping a partial or full removal on any multi-flue Minneapolis home.

FOOTING FIRST, NOT ROOFLINE

What I Look for Before We Touch a Minneapolis Chimney Removal

Every removal scope I write starts at the basement footing, not the roofline.

Brian Levi

Founder, ChimTech

I’ve been in basements of older Minneapolis homes where the chimney footing is the size of a dining room table — and the stack above it isn’t just a column of brick. In some of these houses the original framing used the chimney as a bearing element at the floor joists. You can’t know that from the outside, so before I scope anything I trace the chimney from crown to foundation.

Structural Load

Whether the chimney carries any framing load for the surrounding structure — in some older Minneapolis homes the framing used the stack as a bearing element at the floor joists.

Floor-Level Penetrations

What the penetration looks like at each floor level, crown to foundation — every level the stack passes through gets noted before scope.

Finished Openings

What the finished opening will require at the roof, ceiling, floor, and basement slab after removal — different for above-roofline versus full interior.

I tell every Minneapolis homeowner which removal type applies to their specific situation before they authorize anything.

WHICH REMOVAL APPLIES

Above-Roofline vs. Full Interior Removal — Which Applies to Your Home

The removal type is determined by what you need the chimney to stop doing — not by what’s cheapest to remove.

Above-Roofline Removal

The less invasive option.

Stack comes down to the roofline

Flashing patch restores roof water resistance

Interior structure stays — attic to footing

Best when the chimney isn't causing indoor problems

Full Interior Removal

The complete takedown.

Every component out — crown to basement footing

Floor, wall, and ceiling openings patched at each level

Best when the interior footprint is the issue

Renovation, footing moisture, or no structure remaining

Both options require a Minneapolis residential permit when the work affects the roofline or structural framing. ChimTech coordinates that permit directly with the City of Minneapolis — same crew, same jurisdiction, no third-party filing service. The permit covers the structural work, the roofline modification, and the inspection confirming the openings are properly patched and the structure is sound; you receive a copy of the permit and the passed inspection record at project close-out.

HOW WE APPROACH IT

How ChimTech Approaches Every Minneapolis Chimney Removal

Written scope. Structural check. Permit filed. One crew, start to finish.

What sets removal apart from most masonry work is the number of trades it touches at once — roofing at the flashing patch, framing if floor joists need sistering after the footing comes out, drywall and flooring at every interior opening. ChimTech coordinates all of it under a single job record.

Structural load assessment completed before scope is written — we confirm whether the chimney carries framing load at the floor joists.

Flue status confirmed — abandoned flues documented inactive before removal; active connections identified and managed in scope.

Minneapolis residential permit filed for all work affecting the roofline or structural framing.

Flashing patch installed to manufacturer specification at the roof penetration after above-roofline removal.

Floor, wall, and ceiling openings patched at each level for full interior removal — substrate matched to adjacent surfaces.

Single job record delivered — scope, permit number, inspection outcome, and finished condition documented.

Diagnostics

The assessment begins at the basement footing. We trace the chimney's structural relationship to the surrounding framing at each floor level, identify all flues in the stack — active, abandoned, and capped — and confirm which are included in the removal scope.

Implementation

Above-roofline removal proceeds crown to roofline, course by course, with a controlled debris-drop system protecting the roof; the flashing patch is installed in the same visit. Full interior removal continues through the attic, ceiling, floors, and footing — each opening framed, patched, and finished to match. No opening is left rough.

Post-Service Documentation

ChimTech confirms water resistance at the former penetration; for full interior removals, floor and ceiling patches are confirmed level and structurally sound before the crew leaves. The passed permit inspection is scheduled with Minneapolis Building Services as part of close-out.

WHERE WE REMOVE

Chimney Removal Coverage Across Minneapolis Residential Neighborhoods

We perform removals across Minneapolis — heaviest volume in the older housing stock on the south and northeast sides.

Projects in South Minneapolis — Longfellow, Nokomis, and Powderhorn Park — frequently involve the abandoned furnace-flue scenario: a pre-1950 foursquare or bungalow whose original coal or oil furnace flue runs through the center of the house with nothing connected to it. In Northeast Minneapolis and the Wedge, gut-renovation projects regularly surface chimney footprints the updated floor plan can’t accommodate.

North Minneapolis and Uptown projects tend to mix both — system conversions and renovation-driven removals — often in the same structure. Every project, regardless of neighborhood, is scoped, permitted, and executed by the same ChimTech crew operating out of Minneapolis. The team that assesses the footing files the permit with the City of Minneapolis and completes the removal through final inspection — no handoffs, no subcontracted phases.

South MinneapolisLongfellowNokomisPowderhorn ParkNortheastThe WedgeNorth MinneapolisUptown

Call (763) 402-9301 to schedule a structural scope assessment.

Book Your Minneapolis Chimney Removal Scope Assessment

If you know the chimney needs to go, the next step is a written scope — not a guess. Have your property address, chimney type, and removal goal ready; we’ll schedule the structural assessment, walk through above-roofline versus full interior options, and deliver a written scope before any work is authorized. Prefer email? Reach us at office@chimtech.org.

FAQ

Frequently Asked Questions — Chimney Removal

Does chimney removal require a permit in Minneapolis?

Yes. Any chimney removal that affects the roofline or structural framing requires a Minneapolis residential building permit. ChimTech files that permit directly with the City of Minneapolis and schedules the passed inspection as part of project close-out. You receive a copy of both the permit and the inspection record.

What is the difference between above-roofline removal and full interior removal?

Above-roofline removal takes the stack down to the roofline and installs a flashing patch at the former opening, while the interior structure stays in place through the attic, floors, and basement. Full interior removal pulls every component from crown to basement footing and patches all floor, wall, and ceiling openings at each level. Which one applies depends on why the chimney is being removed and whether the interior footprint is part of the problem.

How long does a chimney removal project take in Minneapolis?

Above-roofline removal is typically completed in a single day. Full interior removal depends on how many floor levels the chimney passes through and the condition of the surrounding framing — a two-story Minneapolis foursquare with a chimney from basement to roofline is generally a two-to-three-day project. ChimTech provides a timeline estimate as part of the written scope before work begins.

Can you remove just one flue from a multi-flue chimney stack?

Sometimes, but not always. In older Minneapolis homes the masonry of adjacent flues in a shared stack may provide lateral support to each other. Before any partial removal is scoped, ChimTech assesses whether the remaining flue structure can stand independently — and if it can’t, the scope changes. That determination is made before authorization, not after demolition starts.

What happens to the roof after the chimney is removed?

After above-roofline removal, ChimTech installs a flashing patch at the former penetration, set to manufacturer specification and confirmed for water resistance before the crew leaves. For full interior removals, the roof opening is patched as part of the same visit sequence.

Will removing the chimney affect my home's structural framing?

It can — which is why the structural assessment comes before the scope is written. In some older Minneapolis homes the original framing used the chimney as a bearing element at the floor joists. ChimTech traces the chimney’s load relationship to the surrounding framing at every level; if floor joists need to be sistered after the footing is removed, that work is included in the scope and coordinated as part of the same project.