QUESTION: Why don't other contractors address my duct system?
ANSWER: Unfortunately few have the knowledge or own the tools and instruments to measure the performance of your duct system. If they can't measure it, they have no idea how to fix it, or even where to begin. They assume that the ducts are just fine.
QUESTION: How can ducts affect my system performance?
ANSWER: Here's an example: A 30% return duct leak on a hot or cold day can decrease your heating or cooling capacity more than 50% That may sound extreme, but it's not an uncommon condition.
QUESTION: Other contractors have offered to seal my ducts. Isn't that the same thing?
ANSWER: No. While duct sealing is definitely done as part of a renovation, sealing by itself cannot address many of the flaws in a duct system. In many cases, just sealing the duct can make the problem worse, as it could choke down airflow causing equipment failure, major comfort problems. In extreme cases, it has caused back-drafting of flues leading to dangerous carbon monoxide problems.
QUESTION: Will renovating my ducts make the rooms that are uncomfortable finally more comfortable?
ANSWER: Comfort will increase. A good renovation should also improve indoor air quality and reduce energy use.
Duct Repair Experts
National Comfort Institute trains heating and air conditioning contractors to test systems just like yours to determine existing efficiency and delivered comfortable air. NCI also trains contractors how contractors can pinpoint troubles in your system and fix these problems. We are an NCI certified contractor for all your duct system repairs.
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