Duct Repair and Sealing

A disconnected or leaky duct can send heated or cooled air into the attic or basement instead of your rooms. We find the problem runs, reconnect or replace them, and seal the joints.

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Signs you need this

One room is always hotter or colder than the rest
Weak airflow from a single register
Dust or insulation coming out of a register
Ductwork in the attic or basement that is visibly loose, crushed, or taped with cloth duct tape
Whistling or rattling from ductwork

What’s included

Inspection of accessible duct runs in the attic, basement, and crawlspace
Reconnecting and fastening separated joints
Replacing crushed or damaged sections of flexible or metal duct
Sealing joints with mastic or foil tape

Why sealing matters

Duct joints loosen over the years, flexible duct gets crushed during attic work, and cloth tape dries out and falls off. Every leak lets conditioned air escape into spaces you don’t live in, and in the attic or basement it can pull dust and insulation fibers into the system.

What we fix

We work through the accessible runs, reconnect and fasten separated joints, replace damaged sections, and seal joints with mastic or foil tape rated for ductwork. If a room still doesn’t get enough air after repairs, we’ll tell you whether it’s a duct-size or system-balance issue that needs an HVAC contractor.

Common questions

Isn't duct tape made for ducts?

Despite the name, cloth duct tape dries out and falls off ductwork over time. Mastic and foil tape rated for ducts are the durable choice.

Can you reach ducts inside walls and ceilings?

We repair what's accessible from the attic, basement, crawlspace, and registers. For runs sealed inside finished walls, we'll explain the options.

Related services

Talk to someone about your chimney or air ducts.

Our line is answered 24/7. Or send a short request and we’ll call you back.