We repair and seal residential ductwork across Northern Colorado.
DUCTWORK REPAIR AND SEALING IN NORTHERN COLORADO
By the team at Homegrown Heating and Air Conditioning
When a furnace runs and runs while one bedroom stays cold, the ducts are usually the problem rather than the equipment. Ductwork repair and sealing in Northern Colorado targets the part of the system nobody looks at: the sheet metal, flex, boots and connections that carry conditioned air from the equipment to the room.
We at Homegrown Heating and Air Conditioning test, seal, repair and install residential duct systems across Northern Colorado.
NO BRAND LOYALTY, JUST GOOD EQUIPMENT
BRANDS WE INSTALL AND SERVICE
We repair every major brand, whether or not we installed it. On replacements we recommend based on your load and budget, not on whose rebate is best this quarter.
WHERE WE WORK
DUCTWORK REPAIR AND SEALING ACROSS NORTHERN COLORADO
If you’re in NoCo, you’re in our neighborhood. We drive to you fast, and with the common furnace parts already on the van.
GOOD TO KNOW
DUCTWORK QUESTIONS FROM NORTHERN COLORADO HOMEOWNERS
Does replacing my furnace in Fort Collins require a duct leakage test?
Not by itself. Under the 2024 IECC, which Fort Collins applies to permits submitted on or after April 1, 2026, a straight equipment swap does not trigger a duct test. Relocating a quarter of the registers or a quarter of the duct length does.
Do I need a permit to alter ductwork in Fort Collins?
Yes. Ductwork is named on the City mechanical permit alongside furnaces, air conditioners, heat pumps and mini-splits. Plan on a rough mechanical inspection once the duct is installed and sealed and before insulation is installed.
Are the duct leakage limits the same in Johnstown and Berthoud?
No. Both towns amended the model code to 4 cfm per 100 square feet with the air handler installed and 3 cfm per 100 square feet without it, which is tighter than the 2024 table. We size and seal to the town the house sits in.
My ducts run through a vented crawlspace. Does that need insulation?
Yes. A vented crawlspace is outside conditioned space, so supply and return duct 3 inches in diameter and larger needs R-8, and smaller duct needs R-6.
Can the space between my floor joists be used as a return?
Not under the current code. The 2024 IECC prohibits using building framing cavities as ductwork or plenums, and Fort Collins carries the same prohibition in its amended mechanical and residential codes. We replace panned returns with sealed duct.
We live in Greeley. Do the same rules apply?
No. Greeley adopted the 2021 IECC effective January 1, 2023, and that edition has no 25 percent alteration trigger and no 12.0 cfm alteration threshold. Estes Park is also on the 2021 codes. Northern Colorado is not one code jurisdiction, and we check the address before we quote.
5-STAR SERVICE
WHAT YOUR NEIGHBORS SAY
Real reviews, from real Northern Colorado home owners
“Dan was great! He diagnosed and fix our furnace issues quickly. He made great recommendations and walked us through all our options. Highly recommended!”
Moses Horner
Google Review
“Dan arrived on time. He was helpful in answering questions and providing education on our service.”
Therese Millis
Google Review
“Very quick response time and easy to work with. Highly recommend.”
Matthew Vaught
Google Review
“Dan was great! He explained everything about the service to be performed and successfully completed the work!”
leslie anderson
Google Review
one call, and the cavalry rolls out
STAY WARM THIS WINTER. CALL YOUR NEIGHBORS.
No call centers. No pressure. Just honest answers, free estimates, and a stocked van on the way.