What it is, in plain English
If your existing insulation is clean, dry, and just shallow, you don't need to start over. A top-off adds new blown-in directly on top of what's there, bringing your attic up to current R-49+ standards at a fraction of the cost of a full removal-and-replace.
What's included
- Inspection-first to confirm existing insulation is healthy
- Compatible blown-in added to reach your target R-value
- Air sealing performed first if leaks are present
- Baffles added or repaired to keep soffits clear
- Same depth-ruler verification as a full install
Frequently asked
When is a top-off NOT a good idea?
If your existing insulation is wet, moldy, or rodent-contaminated, it needs to come out first — we can handle that. If we find vermiculite or anything that looks like it might be asbestos-containing, we won't touch it. You'll need to have it tested, and if it's positive for asbestos, removed by a licensed abatement company. Once that's done, we can come back in to air-seal and re-insulate.
Can I top off myself with bags from a hardware store?
You can, but you'll likely get inconsistent depth, miss the air-sealing step, and bury problems like ductwork or junction boxes that need to stay accessible. Most DIY top-offs underperform their paid R-value by 20–30%.