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Ductwork Repair, Sealing and Installation in Middle Tennessee

  • Licensed and insured plumbing, HVAC and electrical techs

If one room is always hot, another is always cold, and the system runs all day anyway, the problem may not be the equipment. It may be the ducts: leaking into the attic, crushed in the crawl space, or never sized for the house in the first place.

We'll look at what you have, show you what we find, and tell you whether it needs a repair, sealing or new runs. Duct work is done by licensed and insured techs. One call still covers the whole house.

Signs you need ductwork help

  • Rooms that are much warmer or colder than the rest of the house
  • Weak airflow from some vents
  • Dust that builds up fast, or a musty smell when the system runs
  • Energy bills higher than the house should need
  • Ducts in the attic or crawl space that are crushed, sagging, torn or disconnected
  • Sweating ducts or wet insulation in the crawl space in summer
  • Whistling at the vents, or rattling and popping in the walls and ceilings
  • An addition or finished space with no supply or return vent

What we do

  • Duct inspection

    Looking at the ducts in the attic, crawl space or basement for disconnections, crushed runs, torn insulation and gaps where the ducts meet the vents and the equipment.

  • Duct repair

    Reconnecting, supporting and replacing damaged sections of flexible duct and sheet metal, and replacing insulation that is torn or soaked.

  • Duct sealing

    Sealing joints and seams with mastic or approved foil tape, so the air you pay to heat and cool reaches the rooms instead of the attic or crawl space.

  • Airflow and returns

    Adding or enlarging return vents, balancing dampers, and fixing runs that are too long or too small for the room they serve.

  • New ductwork

    New duct systems for system replacements, additions and renovations, sized to the rooms they serve and to the equipment.

  • New construction and renovations

    Duct rough-in for new homes and remodels, planned with the framing, plumbing and electrical so runs stay short and straight.

Repair or replace?

A few disconnected or crushed runs are a repair, and sealing leaky joints is often worth doing on its own. We'll tell you when that's all it takes.

Replacing the duct system makes more sense when the ducts are old, brittle or damaged throughout, when they were never sized for the house, or when a new HVAC system needs different airflow. We'll show you what we found and give you a firm price for each option.

What it costs, and how we price it

What drives the price

  • How much of the system needs work: a few runs, sealing, or a full replacement
  • Flexible duct or sheet metal, and the insulation it needs
  • Access: a tight crawl space or a low attic takes more time
  • Whether return vents need to be added or enlarged
  • Whether the job calls for a duct leakage test
  • Permits and inspections where the job requires them
The diagnostic visit
Free. We come look, find the cause and explain it.
Your price
Firm price given before any work starts.
How we price
Priced per job. Each job is priced on its own.
Why prices stay down
Low overhead, and the work done right the first time with current methods, equipment and quality materials, so you are not paying for callbacks.

How a visit works

  1. Call or text

    Call or text (615) 426-9344 and tell us what's going on. A photo helps. We work Monday to Friday, 8 a.m. to 5 p.m.

  2. A free diagnostic visit

    We come look, find the cause and explain it in plain words. The visit is free.

  3. A firm price before any work starts

    You get the price for the job before we begin, so you can decide with real numbers.

  4. The work, done right the first time

    Current methods, good equipment and quality materials. We keep overhead low and skip the callbacks, which keeps prices down.

  5. Follow-up

    If anything we worked on gives you trouble, call or text the same number.

Why do leaky ducts matter?

Ducts that run through an attic or crawl space sit in the hottest and dampest parts of the house. When they leak, you pay to heat or cool air that never reaches a room, and the system runs longer to make up for it.

It works the other way too. A leaky return duct can pull in dusty attic air or humid crawl space air and send it through the house. Sealing the ducts can help comfort, dust and humidity at the same time.

Why is one room always hot or cold?

Often it's the duct to that room: too long, too small, crushed or disconnected. Rooms over garages and at the far end of the house are the usual suspects. Sometimes the problem is a missing return, so air can't get out of the room once it's in.

We'll trace it before recommending anything. The fix might be a repaired run, a new return, or a ductless mini-split for a room the ducts will never reach well.

What about ducts in a Middle Tennessee crawl space?

Crawl spaces here are often damp in summer. Cold ducts in humid air can sweat, soak their insulation and drip onto the ground below. Sealed joints, good insulation and keeping the crawl space itself drier all help.

If there's standing water under the house, that's worth fixing at the same time, and we can look at that too.

Common questions

Is the visit to look free?

Yes. We'll come look at your ducts and your system for free, show you what we find and give you a firm price before any work starts.

Who does the duct work?

Duct work is done by licensed and insured techs. Root House gives you the price, and one call still covers plumbing, HVAC and electrical.

Can I close the vents in rooms I don't use?

It usually isn't a good idea. Closing vents raises the pressure in the ducts, which can make leaks worse and strain the blower, and the system doesn't run any less. If a room is always too hot or too cold, it's better to fix the cause.

Do I need new ducts with a new HVAC system?

Not always. If the ducts are in good shape and sized for the new system, they can stay. If they leak badly, are undersized, or the new system needs more airflow, it's worth fixing them at the same time.

Will duct sealing lower my energy bills?

It can, when the ducts are leaking into an attic or crawl space. How much depends on how leaky they were and where they run. We won't promise a number, but we will show you what we found.

How long do ducts last?

Well-installed ducts can last many years, but flexible duct in a hot attic or a damp crawl space tends to wear out sooner. Crushing, pests and torn insulation shorten its life further.

Do you install ductwork in new construction?

Yes. Duct rough-in is part of the HVAC rough-in and trim-out work on new homes, additions and remodels, planned with the plumbing and electrical.

Work that holds.

Call or text for ductwork anywhere we serve in Middle Tennessee.

Text us at 6 1 5, 4 2 6, 9 3 4 4Call 6 1 5, 4 2 6, 9 3 4 4, Root House Mechanicals