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The air duct, or air distribution, system utilized in air conditioning and heating your residence is a collection of tubes that distributes the heated or cooled air to the various spaces you occupy. This branching network of round or rectangle-shaped tubes– typically constructed of sheet metal, fiberglass board, or a flexible plastic-and-wire composite– is located within your office or residence. The duct system is created to supply areas with air that is “conditioned”– that is, heated or cooled by the HVAC System}– as well as to circulate or return the exact same volume of air back to the HVAC Unit.

Normal air-duct systems shed 25 to 40% of the heating or cooling energy put out by the AC and heating unit. Leakage is one method which conditioned air is lost in the air duct system. This makes your entire system work harder, therefore increasing your utility bill. Additionally, on top of that, air duct leakage  can reduce comfort and jeopardize your health and wellness.

Your air duct system has two primary air-transfer systems– supply and return. The supply side provides the conditioned air to the residence through specific registers– what you really feel blowing out of the vent. The return side takes out inside and also supplies it to the air handler of your central system. Every bit of the air drawn into the return duct is conditioned and should be supplied back via the supply registers.

Air Duct Repair

Air Duct Installation

Your Air Ducts are critical for keeping your residence comfy year-round. They uniformly distribute the cool or warm air you need to delight in every season, in every area of your home.

As your ducts age, time might start to reveal some damage. Leaks in your ducts can give up system efficiency and can jeopardize your comfort. Old ducts can also become contaminated with dirt, mold, or mold.

In some cases, your ductwork can be covered and fixed, yet often a complete replacement is the very best option.

If you require air duct installment in the DFW or Permian Basin, call the COOLING AND HEATING specialists at Master Tech today.


Do you believe your old duct might need to be replaced? Below are some crucial signs to seek before you hire the pros:

  • Room feels too warm or too cold
  • Aggravated allergic reactions or bronchial asthma
  • Too much dirt
  • Unexplained moldy odors
  • High energy expenses
  • Frequent system repair work
  • System over 15 years old

If your duct system is 15-30 years old or more, look carefully for signs that you might want to replace your ducts. A brand-new air duct system will certainly stop leakage, appropriate temperature discrepancy, provide cleaner interior air, and minimize power usage.


Are you wondering what makes Master Tech the recommended COOLING AND HEATING business in our region?

Air Duct Repair

Air Duct



Homes are not static systems, and conditions transform as houses age. Tape glue dries out and caulking erodes. Many systems have supply signs up in each area yet only one centrally situated return register for the entire house. When we close indoor doors for personal privacy, air because certain space cannot spurt to a return register unless there is one located in that very same area– however the supply register is still generating conditioned air. The provided air needs to go someplace, so air gets displaced any type of space readily available. On the other hand, adequate air is not going into the return air duct, so unconditioned air from the attic, cellar, garage, or crawl area gets sucked in through leaks, cracks, or gaps. This scenario can be prevented by having supply and return air ducts in each space, or by providing an air pathway in between the spaces as well as in the residence. Such a path can be developed by including vents in doors or wall surfaces, or by setting up a jumper duct or transfer air vent that attaches vents in the ceiling of each area. Additionally, keep furnishings free from obstructing air vents and return air vents. Anything that disrupts air circulation will certainly make the system less effective as well as potentially result in troubles.


Major leaks can be found around joints at ductwork links, around the air trainer unit, and near vents. Search for holes, rips, and loosened joints. Every unsealed joint is likely a tiny leakage– even if a space is not visible. Make sure registers, as well as vents, are firmly attached. If your residence has a mechanical storage room, it should also be properly sealed to prevent adverse return-side air leakage. The return vents need to be kept free of debris.


Ductwork ought to be checked annually for leakages. Some utility businesses and energy raters provide power audits or diagnostic devices like blower-door, duct-blaster, as well as pressure-pan examinations to find leaks the homeowner cannot quickly see. The relationship between supply and return air ducts and air activity in the system is intricate. Sometimes a property owner, in dealing with one issue, may inadvertently produce another. Specialists can occasionally identify such potential troubles before they happen.


It is best to have a certified A/C professional fix your system’s air duct leakages. Master Tech is your local, trustworthy, HVAC contractor that will take wonderful care of you. Return duct leakages are difficult to find since the bigger return ducts run at a lower air pressure, as well as air is being drawn right into the system. And if you just repair the supply air duct leaks, much more unconditioned air may be drawn into the system. Supply-duct leakages are extra easily discovered since you can feel air burning out from the links or see neighboring insulation relocating.

Air duct leakages can be secured using mastic or acrylic-adhesive aluminum foil tape. Mastic adheres well to a lot of surface areas as well as gives an efficient long-lasting seal. Mastic alone might be made use of to secure cracks less than 1/4″ large. Aluminum foil tape carries a 20-year warranty if used correctly.

Any type of sealer needs to bring the Underwriters Laboratories rating (UL-181) specific for that certain kind of duct. The majority of duct makers now detail the closure items that they allow to be utilized with their ducts.

If you see the contractor bringing in duct tape, make certain they do not mean to utilize it on ducts. If they do, then work with someone else. In the past, many systems were sealed with a grey, rubber-adhesive, towel duct tape. This tape will ultimately disintegrate due to its short-lived rubber-based glue. If you see this kind of tape in an existing house, make sure to inspect all areas where it is connected to the ductwork. If your contractor insists on utilizing duct tape on the ductwork, use a various contractor.

Oncor Award

ONCOR HVAC Contractor

Master Tech has been selected, for the 5th year to be a part of Oncor’s 2021 HEE (High Energy Efficiency) and LIW (Low Income Weatherization) programs. 

This is a huge Federal program that only works with a select group of HVAC contractors throughout the State of Texas.  Master Tech was amongst the first 5 contractors to be in the program during its inception.

We were also the winner of Oncor’s Best of the Best award the only year that award was given.  The program is intended to incentivize homeowners who upgrade their HVAC systems to higher SEER (Seasonal Energy Efficiency Ratio) units. 


The program pays us the incentive, which we take directly off of the sales price up front.  Oncor requires us to call this an “incentive,” not “rebate” or “discount,” as Oncor wants/needs to the homeowner to understand they are incentivizing them (paying back) to use less energy.  Unfortunately, many contractors on the program do not reduce the sales price, they just receive the money from Oncor without telling the customer they are getting incentivized.

Our core values are Integrity, Accountability, and Customer Commitment. We would love to help you get the best deal possible on your HVAC unit.

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