Said It Here

How to know if a repair is done correctly

Technicians sometimes use unexplained materials, like putting sealant on a furnace, which makes the work look shady. This leaves people unable to easily assure themselves that the repair is actually done correctly.

Overview
People affected2 accounts across 2 forums
Workarounds found3 items attempted
Community agreement7 total upvotes

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

Found another way around this?

Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.

  1. 1
    Seeking a second opinion from online advice forums.
    Did this help you?
  2. 2
    Posting photos of the work on online forums for peer review
    Did this help you?
  3. 3
    Hiring an independent structural engineer to inspect the repair
    Did this help you?

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/Roofing1 person · November 2026

“This repair looks shady! Can someone assure me that it is done correctly?”source ↗

Front_Programmer_528 · r/Roofing · 5 upvotes
r/hvacadvice1 person · November 2026

“What's up with this sealant a technician put on my furnace?”source ↗

duderflyboy · r/hvacadvice · 3 upvotes

Where this came up

People with this problem also raised