# Smoke odor removal in Northeast Minneapolis > Removing smoke smell from Northeast Minneapolis homes: plaster walls without fire blocking, radiators, duplex stairways and arts studios. URL: https://firedamagerestorationminneapolis.com/smoke-odor-removal-northeast/ Section: Home > Service areas > Northeast > Smoke Odor Removal in Northeast Last updated: 2026-10-31 Disclosure: Fire Damage Restoration Minneapolis is a call-in referral service. Your call is connected to an independent, licensed local contractor who speaks with you on that call; we do not perform the work ourselves. In Northeast's older houses and duplexes, smoke smell travels in ways that surprise people. It moves inside wall cavities that were built without fire blocking, warms back out of radiators each time the heat comes on, and drifts up shared stairways from one unit to another. Our [odor removal](https://firedamagerestorationminneapolis.com/services/odor-removal/) page sets out the general method. Ring us and the call is answered by an independent local contractor who will discuss the smell in your Northeast home while you are on the phone. ## Key facts - Smoke odor is removed at its source under the IICRC S700 standard, not masked [2]. - Ozone machines can irritate the airways, so the EPA advises against running them in rooms where people are [3]. - Many Northeast buildings were put up between the late 1800s and early 1900s [7]. ## Smoke smell in Northeast's older houses Most homes in Northeast are more than a century old [7]. Their plaster walls, fir trim, maple floors and old insulation all hold smoke. Many wall cavities were built without fire blocking, so smoke can rise from the basement to the attic inside the walls. Grey streaks around outlets and baseboards are a sign of this. Because the smell is coming from inside the walls, surface cleaning alone may not stop it. The contractor may remove baseboards or open small inspection holes to see how far smoke traveled, then clean or seal what they find. ## Radiators and boilers Many Northeast houses heat with a boiler and radiators, sometimes converted from coal years ago. Radiators collect soot on their fins and in the dust underneath them. When the heat comes on, they warm the residue and release the smell again. Each radiator needs cleaning, sometimes by removing it from the wall. Houses that were converted to forced air have ducts that run through closets and walls. If the blower ran after the fire, every duct holds residue. The ducts and furnace are cleaned, and filters are changed several times after restart. ## Clearing smoke smell from a Northeast home The order a contractor usually follows. 1. **Trace smoke paths in the Northeast house:** Check walls, outlets, stairways, attic and basement for residue. 2. **Remove what holds the smell:** Bag smoky insulation and soft goods that will not clean. 3. **Clean every surface and heat source:** Walls, trim, floors, radiators and ducts are cleaned. 4. **Seal and treat the remaining odor:** Seal wood and plaster, then deodorize the empty house. ## Shared stairways in duplexes and walk-ups In a Northeast duplex or small walk-up, a fire in one unit sends smoke into the common stairway and up to the units above. The stairway walls, railings and carpet absorb it, and every time a door opens, the smell moves into another home. The common areas need cleaning along with the damaged unit. Each unit may need its own cleaning and deodorizing, depending on how far smoke traveled. The owner handles common areas; tenants should talk with their renters insurer about their belongings. Agreeing on access early keeps the work moving. ## Half-story rooms and knee walls Many Northeast houses have rooms under the roof with sloped ceilings and storage behind knee walls. Smoke rising through the stairwell collects there. Roof boards and old insulation absorb it, and the smell lingers long after the rooms are cleaned. Every knee-wall space should be opened and emptied, insulation removed and the wood cleaned and sealed. Older loose-fill insulation should be tested for asbestos before removal [6]. Our guide to [smoke odor that won't go away](https://firedamagerestorationminneapolis.com/guides/smoke-odor-that-won-t-go-away/) explains why these spaces matter. ## Studios and live-work spaces Northeast's arts district includes homes and converted buildings where people live and work with paints, solvents, resins and kilns. A fire involving those materials can leave sharp chemical odors along with smoke. Tell the contractor what was stored so they can choose the right cleaning and handle disposal properly. Artwork and supplies exposed to smoke may need a conservator. Keep them separate from household contents and photograph them for your claim. ## Hidden sources of smell in Northeast homes Places to check before calling the job done. - **Northeast wall cavities without fire blocking:** Smoke rises inside the walls between floors. - **Radiator fins and the dust beneath:** Heat releases trapped residue. - **Shared stairway carpet and walls:** Smell moves between units. - **Attic and knee-wall insulation:** Old insulation soaks up smoke. ## Fresh air in a cold climate Airing out a house is one of the best ways to reduce odor, but Minnesota winters make that hard. Contractors use air scrubbers with HEPA and carbon filters to clean indoor air while windows stay closed. On milder days, short periods of ventilation can help. Ozone and similar treatments are used only in empty buildings. The EPA notes that ozone can harm the lungs [3], so people and pets stay out until the treatment ends and the space has been aired. ## Moisture, mold and musty odors Old Northeast basements are often low and damp, with stone walls and a floor drain. After firefighting water reaches them, a musty smell can join the smoke smell. The Minnesota Department of Health says moisture problems should be fixed quickly to keep mold from growing [4]. The basement is dried with dehumidifiers before it is sealed. If it smelled musty before the fire, tell the contractor, since that odor needs a different fix. ## Records for the odor work Ask the contractor for a written list of what was removed, cleaned, sealed and treated in each unit or room. Photos of open walls, radiators and knee-wall spaces help explain the work to an adjuster. The Minnesota Department of Commerce encourages policyholders to keep records [5]. The [Northeast area page](https://firedamagerestorationminneapolis.com/areas/northeast/) describes how these houses are built. If the smell comes back after the work, ask the contractor to return. ## Smoke Odor Removal in Northeast: before and after Slide to see a Northeast room before and after odor removal work. ## Smoke Odor Removal in Northeast: questions ### Why does my Northeast house smell worse when the heat comes on? Radiators and ducts hold soot, and warmth releases the smell. Cleaning the heating system is part of the job. ### Can smoke smell move from my neighbor's unit into mine? Yes, through shared stairways, walls and floors. Common areas and nearby units may need cleaning too. ### Will opening the walls be necessary? Sometimes. If smoke traveled inside wall cavities, small openings may be needed to clean or seal them. ## Sources 1. [U.S. Fire Administration: After a fire](https://www.usfa.fema.gov/prevention/home-fires/after-a-fire/) 2. [IICRC: S700 Standard for Professional Fire and Smoke Damage Restoration](https://iicrc.org/s700/) 3. [U.S. EPA: Ozone generators that are sold as air cleaners](https://www.epa.gov/indoor-air-quality-iaq/ozone-generators-are-sold-air-cleaners) 4. [Minnesota Department of Health: Mold and moisture in homes](https://www.health.state.mn.us/communities/environment/air/mold/index.html) 5. [Minnesota Department of Commerce: Disaster Information Center](https://mn.gov/commerce/insurance/home/dic) 6. [U.S. EPA: Protect your family from exposures to asbestos](https://www.epa.gov/asbestos/protect-your-family-exposures-asbestos) 7. [Wikipedia: Northeast, Minneapolis](https://en.wikipedia.org/wiki/Northeast,_Minneapolis) ## Talk to someone Call (612) 471-0995 (+16124710995). Your call connects to an independent local contractor who speaks with you on that call.