AMG Duct Cleaning

Air Duct Repair

Duct Repairs That Actually Improve Airflow

Some repairs improve numbers on paper. These improve how the house feels.

Technician measuring airflow at a supply register

August 7, 2026 · 6 min read

Adding return capacity

In homes with a single central return, adding a second return path is consistently the highest-impact change we make.

It lowers static pressure, quiets the system and evens out temperatures between floors.

Replacing crushed or kinked branches

A single crushed flex run can cut a room's airflow by more than half. Replacing that eight-foot section changes that room completely.

These are usually found above closets, behind attic storage, or where a contractor worked after the HVAC install.

Sealing the plenum connections

The joints closest to the air handler are under the highest pressure, so leaks there cost the most.

Sealing them recovers air that never made it into the trunk in the first place.

  • Second return added on the upper floor
  • Crushed branch runs replaced
  • Supply and return plenum joints sealed
  • Sharp elbows swapped for long-radius fittings
  • Dampers reset and balanced

Measure before and after

Register airflow and static pressure readings before and after tell you whether the money did anything.

We provide both, so the improvement is documented rather than assumed.

Related service

Air Duct Repair

Seal leaks, fix damaged sections, and restore airflow across your HVAC system.

See Air Duct Repair details

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