Duct Sealing

Leaky Duct Are your heating and cooling ducts leaking? Studies have shown that the duct systems in most homes are not airtight. As much as 20% or more of the air that moves through the duct system in your home may be lost due to leaks, holes, and poorly connected ducts. These leaks can add up to as much air loss as having an open window! The result is higher utility bills and difficulty keeping the house comfortable, no matter how the thermostat is set.

Some signs that your home may have leaky, poorly insulated, or inefficient ducts:

» High summer and winter utility bills
» Rooms that are difficult to heat and cool
» Stuffy rooms that never seem to feel comfortable
» Ducts are located in an attic, unfinished basement, crawlspace or garage
» Tangled or kinked flexible ducts in your system

With leaky ducts, you're losing air to the outside that you've already paid to heat or cool. The more these ducts leak, the longer a furnace or air conditioner has to run to maintain comfort. This means higher utility bills—year in and year out.

Properly Sealed Duct A duct system that is properly sealed and insulated can make your home more comfortable, energy efficient, and safer. Making improvements to your duct system can:

» Improve Comfort
» Enhance Indoor Air Quality
» Promote Safety
» Save Money
» Protect the Environment

COMMON DUCT PROBLEMS AND SOLUTIONS

PROBLEMS:

A) Leaky, torn and disconnected ducts
B) Poorly sealed registers and grills
C) Leaks at furnace and filter slot
D) Kinks in flexible duct work restricting airflow

SOLUTIONS:

E) Properly sealed ducts
F) Registers and grills tightly sealed to ducts
G) Sealed furnace and filter slot
H) Well-insulated ducts in unfinished areas
I) Straightened flexible ducts, improved airflow

(see Duct Sealing PDF below for full-size illustration)

WSU Extension Energy Program Video

The Energy Experts from the WSU Extension Energy Program provide this informative video on sealing your HVAC system ducts. This video shows how ducts move air, where common leaks are, and how these leaks are fixed. This video shows why it is so important to have leaky ducts sealed.

THE NEXT STEP

If you are concerned that your ducts may be leaking, and want to find our more, call Bob's today at (800) 840-3346 to schedule a Duct and Building Air Leakage Test. Bob's certified technicians will perform this test to determine how much your ducts are leaking and if it makes sense to seal them. This is such an important step, we have made it a requirement before having your ducts sealed. Prices starting at $259.

After your ducts have been sealed, our technicians will conduct this test once again, so you can see the results. To find out more, please visit our page on Performance Testing.

To contact Bob's Heating to get more information or schedule a test, call (800) 840-3346, or go to our Contact Page.

More Information

DUCT SEALING PRICING*
HOUSE SQ FT	COST
0 - 1,500	$325
1,500 - 2,000	$400
2,000 - 2,500	$475
2,500 - 3,000	$550
3,000 - 3,500	$625
3,500 - 4,000	$725
4,000 and above	$850

*Prices quoted are per furnace. Duct testing and/or cleaning is not included.