testimonials

What our client's
have to say

QuateQuateQuateQuateQuate
“Great company to work with! They were professional, punctual, and took the time to explain what was going on with my system as well as the options I had with repair. Would absolutely recommend and hire again!”

- L Kaya

QuateQuateQuateQuateQuate
Would definitely recommend to family or friends. Been using Northwind Heating and Air for 3 years now with have no complaints and really satisfied with their service and price!”

- Jay Cee

Duct Replacement & Attic Insulation in Denver, CO

10% Off Any Repair!
CALL Now: (720) 501-0051Up Right ArrowRequest Service
Icon 2
Icon 2
Icon 2

Professional Duct Replacement & Attic Insulation in Denver, CO

Upgrade your home’s efficiency and comfort with expert duct replacement and attic insulation services from Northwind HVAC Pros. Aging ductwork and poor insulation are two of the biggest culprits behind uneven temperatures, rising energy bills, and poor indoor air quality. Our comprehensive services solve these problems at the source, improving airflow and thermal retention for a healthier, more efficient home.

We replace damaged, leaky, or undersized ducts with modern, properly sealed systems that ensure even heating and cooling across every room. Our attic insulation upgrades are designed to combat Denver’s temperature swings, keeping warm air inside during winter and hot air out during summer. Together, these upgrades significantly reduce HVAC strain and energy costs—while boosting overall comfort.

Our Duct & Insulation Services Include:

  • Full duct system replacements and rerouting
  • Sealing and insulating air ducts
  • Attic insulation removal and replacement
  • Blown-in and batt insulation installation
  • Energy efficiency audits and airflow balancing

Every home is different, which is why we tailor our solutions based on your home’s layout, system design, and energy goals. Our certified team works quickly, cleanly, and with minimal disruption to your daily life—leaving you with a more comfortable and efficient home.

Ready to reduce your energy bills and maximize your HVAC performance? Contact Northwind HVAC Pros to schedule your duct replacement and attic insulation consultation today.

FAQs:

How much does it cost to replace air ducts?

The cost to replace air ducts typically ranges from $2,000 to $6,000 for a full-home system, depending on the size of your home, accessibility, and the type of ductwork used. At Northwind Heating & Air, we provide upfront pricing and free estimates so you know exactly what to expect before we get started.

How often should air ducts be replaced?

Air ducts should generally be replaced every 20 to 25 years, or sooner if they’re damaged, leaking, or causing efficiency issues. Older ducts can degrade over time, reducing airflow and allowing dust, mold, or allergens to circulate through your home.

How much does attic insulation cost?

Attic insulation in the Denver area typically costs between $1,500 and $3,500, depending on the square footage and the type of insulation being installed. Northwind Heating & Air offers professional insulation upgrades to help improve your home’s energy efficiency and comfort—especially important in Colorado’s variable climate.

What is the best type of attic insulation?

The best attic insulation depends on your home’s needs, but blown-in fiberglass and spray foam insulation are both excellent options. Blown-in fiberglass is affordable and effective, while spray foam offers superior air sealing and insulation value. Our experts at Northwind Heating & Air can assess your attic and recommend the ideal solution for your space.

When should you replace air ducts?

You should consider replacing your air ducts if you notice uneven heating or cooling, excessive dust, poor airflow, rising energy bills, or strange smells coming from the vents. If your ductwork is more than 20 years old, it may also be time for an upgrade. At Northwind Heating & Air, we offer duct inspections and honest guidance on whether repair or replacement makes the most sense.

Request Service

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.