
Furnace Replacement project
Retiring an Oil Furnace in a 2000s Montz Brick Home
Our team replaced a worn oil-fired forced-air furnace in a one-story Montz brick home. The new unit was sized for the existing duct system, permitted, and checked through the required inspection.
- Service
- Furnace Replacement
- Location
- Montz, LA
- Home
- 2000s one-story brick home
- Equipment
- Oil forced-air furnace
- Timeline
- Two days, plus the inspection
- Investment
- Major replacement
A Worn Furnace at the Start of Fall
The homeowner called our team after the oil furnace became difficult to rely on as fall approached. The equipment had served the home through its heating seasons, but its condition made another repair a poor fit for this replacement decision. The one-story brick layout gave us a straightforward equipment path, while the attached garage shaped how we planned access and removal.
The homeowner wanted the work handled as a complete equipment change, not a temporary fix. They needed a properly sized forced-air unit, careful attention to the existing duct connections, and the required Montz permit and inspection handled as part of the job.
The homeowner's goals
- Replace the worn oil furnace
- Keep the existing forced-air layout in use
- Size the new unit for the home
- Complete the permit and inspection process
The Existing Layout Set the Starting Point
Our technicians inspected the oil furnace, its cabinet, the supply and return connections, and the access route through the attached garage. The existing equipment was worn enough that replacement made more sense than putting more work into the old unit. We also checked the duct transitions before selecting the replacement, because a new furnace still needs clean connections to move air through the home.
Montz homes commonly include one-story brick construction and attached garages. That layout helped us plan removal without changing the home's basic heating arrangement. We recorded the existing dimensions and airflow needs, then used those findings to size the new forced-air unit and prepare the permit information for St. Charles Parish's code office.
From Removal to Final Inspection
Review the equipment and access
We confirmed the homeowner's concern, inspected the worn oil furnace, and mapped the route from the attached garage to the work area before moving equipment.
Remove the old furnace
Our technicians disconnected and removed the existing oil-fired unit carefully, protecting the surrounding area and keeping the existing duct layout available for the replacement.
Set and connect the new unit
We positioned the new forced-air furnace, made the supply and return connections, and checked the transitions so the unit could work with the home's existing air distribution.
Complete the startup checks
We checked operation, airflow, controls, and safety functions through a full startup. The team also reviewed the installation against the permit requirements before inspection.
Coordinate the inspection
We completed the required local inspection through the St. Charles Parish code office. After the inspection, the new furnace was ready for the household's fall heating use.


A Clean Start for Fall Heating
The worn oil furnace was retired and replaced with a new forced-air unit sized around the home's existing layout. The attached garage provided practical access for the changeout, and the duct connections were addressed during installation rather than left as an afterthought.
The job took two days, plus the inspection. Once startup checks and the local inspection were complete, the household had a new furnace in place for the heating season and a finished installation tied to the home's existing forced-air system.
What Made This a Major Replacement
The cost of this job came from replacing the complete oil forced-air furnace, adapting the new unit to the existing duct connections, planning removal through the attached garage, and completing the local permit and inspection process.
Complete equipment change
This was a full replacement rather than a repair, so the old furnace had to be disconnected, removed, and replaced with a new forced-air unit.
Sizing and duct transitions
We evaluated the home's airflow needs and existing supply and return connections, then fitted the new furnace to that layout.
Access and removal
The attached garage affected how we staged the work and moved the old equipment out while keeping the surrounding area protected.
Permit and inspection
The installation included the local permit process and the required inspection through the St. Charles Parish code office.
More work
Other recent projects

Clearing a Frozen Indoor Coil in a 1960s Norco Brick Home
A homeowner in a 1960s Norco brick home called when the central AC iced over during summer. We restored airflow by addressing the clogged filter and completed the cooling checks in one visit.
See the project
Replacing a worn central AC in a 1980s Des Allemands brick home
Our team replaced a worn outdoor condenser and matching indoor coil on the original ductwork in a one-story brick home. The new matched system passed its final checks and restored dependable cooling.
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Spring seasonal cleaning for a 1990s frame bungalow in Boutte
We tuned the central AC and furnace at an older Boutte home before the next season. After cleaning, checking drainage, and testing operation, both systems were ready for regular household use.
See the projectNeed a hand at home?
Call us with what you have noticed so far, and we will plan the visit around it.
LaPlace, LA 70068

