Duct cleaning after a fire in Lakewood homes

Houses built in the 1920s through 1940s were heated by floor furnaces, wall heaters or radiators, and cooled by open windows. Central air came later, and installers ran ducts wherever they could: across the attic with ceiling registers, under the pier-and-beam floor with floor registers, or a mix. Many Lakewood homes also have a newer system for a rear addition.

That patchwork matters after a fire. Each system and each duct run has to be inspected, and the cleaning plan depends on where the ducts are and what they are made of.

Floor registers in oak floors are common in Lakewood. Ducts beneath them run through the crawlspace, where firefighting water may have collected. Water can enter ducts through registers and sit in low points, mixing with soot. Those runs need to be checked for water and residue, dried and cleaned, and sometimes replaced if they are insulated flex duct that soaked through.

In houses with ceiling registers, ducts and the air handler often sit in the attic that took the most smoke. Flexible duct with a plastic liner holds residue in its folds and is often replaced after a significant fire, especially if attic insulation is being removed anyway. Coordinating the duct work with attic insulation removal saves doing the job twice.

Many Lakewood homes have gas furnaces in the attic, a hall closet or the crawlspace. Heat, soot and water can damage burners, venting and controls. Have a qualified HVAC technician inspect the furnace before it runs, and make sure carbon monoxide alarms are installed ^[2].

Retrofitted duct systems in older homes often have crushed runs, leaky joints and poor insulation. If ducts must be replaced after the fire, ask the contractor to correct those problems at the same time. For the detailed method, see HVAC and duct cleaning after a fire.

Once the ducts and air handler are clean, a running system with a good filter helps clear fine particles left in the house. Restorers often run HEPA air scrubbers alongside it during the final phase of the restoration. Replace the filter after a couple of weeks of normal use and look at it: a filter that turns gray quickly means residue is still coming from somewhere.

Some Lakewood homes still have an original gas wall heater or floor furnace, sometimes unused for years. These units can hold soot and may have damaged venting after a fire. Ask whether they should be cleaned, inspected or removed, and do not light any of them until a qualified technician has checked them.

Range hoods and bath fans in older homes often vent into the attic or through short ducts in the roof. After a kitchen fire, the hood duct can carry heavy grease residue. Include these smaller systems in the inspection so they do not keep releasing odor after the main ducts are clean.

In most Lakewood houses with attic ducts, the attic insulation also took smoke. If insulation is being removed, that is the time to inspect and, if needed, replace the ducts, because they are easy to reach with the insulation gone. Cleaning ducts first and then blowing smoky insulation around them, or the reverse, can recontaminate the work.

Cleaning or replacing ducts and air handler parts affected by smoke is usually part of the dwelling claim. Photos of a dark filter, streaked registers and camera images from inside the ducts show the adjuster why the work is needed. If the system was left out of the first scope and odor persists, the inspection findings support adding it.

Duct cleaning works best after the heavy cleaning and demolition in the house, so dust from that work does not settle back into clean ducts. Registers stay sealed in the meantime. In some Lakewood jobs the ducts are cleaned once early to stop the spread and again at the end, with a fresh filter as the final step.

After the system is cleaned, a higher-efficiency pleated filter catches more of the fine particles that remain in the house. Older retrofitted systems may not handle a very restrictive filter well, so ask the technician which rating your blower can handle. Check the filter after two weeks and again after a month.