Air Duct Repair & Replacement in Jacksonville, FL

Air duct cleaning solves most airflow and dust problems, but it cannot fix ductwork that has come apart, been crushed, or torn open. When a run is damaged, conditioned air escapes into the attic or crawlspace before it ever reaches the room, and unfiltered dust is pulled in from those same spaces. E.R HVAC repairs and replaces residential ductwork across Jacksonville and the surrounding Florida communities, so the air you pay to condition actually arrives where you want it.

Signs your ducts may need repair or replacement

• Rooms that never reach the same temperature as the rest of the house
• Noticeably weak airflow from one or more vents
• Energy bills climbing without a change in how you use the system
• Whistling, rattling, or a rushing sound near the vents or in the attic
• Dust returning within days of a thorough cleaning
• Visible sagging, separated joints, torn insulation, or crushed flex duct
• A musty smell that comes back even after the system has been cleaned

Any one of these can have more than one cause, which is why we start by looking at the ductwork itself rather than quoting a fix over the phone.

What the visit looks like

We begin with a walkthrough of the system: supply and return runs, the connections at the plenum and the boots, and the condition of the duct insulation. Where access allows, we inspect the runs in the attic or crawlspace. You will hear what we found in plain language, including which sections are sound and which are not.

Small problems are often repairable. Resealing a separated joint, replacing a damaged length of flex, re-supporting a sagging run, or fitting a new boot where a vent meets the ceiling are all routine. When a run has lost its liner, has been compressed along much of its length, or has simply aged past the point where a patch will hold, replacing that section is the more sensible option. We will tell you which case you are in, and why.

Repair or replace?

Repair makes sense when the damage is limited to a few identifiable spots and the rest of the system is in good condition. Replacement is the better call when damage is widespread, when the same run has been patched repeatedly, or when the ductwork no longer suits how the home is used. Where both are genuinely viable we will say so, and the decision stays with you.

Works well alongside

Duct repair pairs naturally with air duct cleaning, since cleaning a system is far more effective once the leaks are closed. If your dryer vent runs through the same spaces, it is worth having that looked at on the same visit rather than booking a second trip. We also handle air handler and coil cleaning, attic insulation, UV light installation and mold treatment.

Areas we serve

We work throughout Jacksonville and in Nocatee, St. Augustine, St Johns, Fruit Cove, Middleburg, Orange Park, Flagler Beach and Ponte Vedra Beach.

E.R HVAC is insured, and rated 5.0 on Google across more than 300 reviews. Estimates are free.

Frequently asked questions

Can you repair ductwork, or do you only replace it?
Both. Many problems are repairable, including separated joints, a crushed section, a failed boot, or torn insulation. We replace a run when the damage is too widespread for a repair to hold, and we will explain which applies to your system before any work starts.

How do I know whether my ducts are leaking?
The usual signs are uneven temperatures between rooms, weak airflow at some vents, rising energy use without a change in habits, and dust that returns quickly after a cleaning. An inspection of the runs confirms it.

Should I clean the ducts or repair them first?
Repair first where there is real damage. Sealing or replacing a compromised run before cleaning means the cleaning lasts, rather than pulling attic dust back through the same gap a week later.

Do you work outside Jacksonville?
Yes. We cover Nocatee, St. Augustine, St Johns, Fruit Cove, Middleburg, Orange Park, Flagler Beach and Ponte Vedra Beach.

Book an air duct repair estimate — call (904) 536-5944 or use the form below. Estimates are free.