Considerations and Benefits
A drill and fill retrofit comes with a few considerations to determine if it’s a fit for your home. To start, drill and fill is not suitable for basements or garage ceilings with rooms above. These areas require different insulation approaches, largely due to moisture concerns. Great Northern Insulation only offers drill and fill services for exterior walls and some ceiling installations, but we do offer other solutions for basements and garages.
Additionally, we do not perform drill and fill installations if existing exterior wall insulation is present, and we do not cut openings in exterior walls to determine if existing insulation is present.
Finally, GNI only installs drill and fill insulation using blown-in cellulose insulation, not injected spray foam. If drill and fill insulation is applicable for your project, it can be a great solution for homes built before modern insulation standards, which often lack proper wall insulation entirely.
Dense-packed cellulose insulation conforms to any shape of cavity and is a highly sustainable type of insulation. Great Northern Insulation utilizes cellulose insulation made from a minimum 85% locally-sourced newsprint, making it both a highly sustainable and high-performance insulation option. Cellulose insulation is especially popular with homeowners who are looking to retrofit their home to Net Zero Ready or Passive House standards.
