Serving Boulder, CO and surrounding areas
Approved
Super Service Award Winner
In business since 2015
Free estimates
Small jobs welcome
"Arrived on time and began work promptly. When they were done, you could not even tell that they were there. I'm very satisfied with their blown in insulation."
+44
Serving Boulder, CO and surrounding areas
Approved
In business since 1993
Free estimates
Credit card accepted
"Denver Insulation did a great job on our attic insulation. They responded quickly and did the job right away. Their estimate was reasonable. Their representative have excellent customer service skills."
+10
Serving Boulder, CO and surrounding areas
Approved
In business since 2020
Free estimates
Warranties offered
"Alvin and Jose did a wonderful job for us. They are conscientious and skilled and I would recommend this company to everyone needing insulation."
+25
Serving Boulder, CO and surrounding areas
Approved
In business since 1972
Free estimates
Emergency services offered
"the insulation worked! summer heat marked different from our last summers!"
+11
Serving Boulder, CO and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Free estimates
Emergency services offered
"Insulation station did a tremendous job putting insulation in my attic it has made a tremendous improvement in keeping my home warm money well spent"
+20
Serving Boulder, CO and surrounding areas
Approved
Super Service Award Winner
In business since 2020
Free estimates
Offers commercial services
"Gio did a great job insulating pipes in our basement that kept freezing when the temperature drops below freezing. He did a great job completing the job and cleaning up the mess afterwards. I would definitely recommend Gio on all insulating work."
+10
Serving Boulder, CO and surrounding areas
Approved
In business since 2021
Free estimates
Offers commercial services
"Alvin is a very good worker and takes pride in his work. The spray foam work is amazing and I definitely recommend it. I had insulation done as well and had no complaints. Everything from business to work is great with DINO insulation."
+15
Serving Boulder, CO and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Small jobs welcome
"Empower Insulation did a fantastic job installing insulation at my house. They were professional, efficient, and made sure everything was done right. I really appreciated their attention to detail and how clean they left the space afterward. Highly recommend them if you’re looking for quality insulation work!"
+11
Serving Boulder, CO and surrounding areas
Approved
In business since 2018
Free estimates
Customers say: True professional
"It was great. They really enjoyed the job. Communication with Felipe was great."
Serving Boulder, CO and surrounding areas
Approved
In business since 2023
Free estimates
Warranties offered
"We were very impressed with Insulation Nation’s professionalism, promptness, cleanliness and the incredible results we have experienced from the job they did in our attic. They made the process very easy at a reasonable price and we would strongly recommend them!"
+1
Old insulation should be removed when it shows damage, contamination, or heavy deterioration. If you notice water stains, rodent droppings, mold, or large gaps, plan on taking it out to protect your home’s energy performance and indoor air quality. Removing compromised material eliminates health hazards, cuts energy loss, and sets the stage for a safer, more efficient attic—all while keeping utility bills in check.
R-value measures how well insulation resists heat flow—the higher the number, the better it slows heat transfer. The right R-value keeps your home warmer in winter and cooler in summer, saving energy year-round. Match the rating to your climate zone and have a pro verify performance over time, because moisture or settling can lower R-value and cut efficiency.
Attic insulation can stay in place for 80 to 100 years, but its performance often drops after the first 15. As dust, moisture, or mold build up, the material loses R-value and allows heat to escape. Schedule periodic inspections so a pro can tell you when replacement makes sense—helping you keep energy bills down and indoor comfort up.
You can over-insulate an attic. Beyond the recommended R-value, extra layers don’t add efficiency and can trap moisture, leading to mold or reduced performance. A local insulation pro can measure current levels, confirm the right target for your climate, and advise on any adjustments so you avoid future energy or maintenance headaches.
Insulation can be damaged by mold, pests, water leaks, or accidental electrical contact. When the material is compromised, it loses R-value and can introduce health hazards. Removing and replacing affected sections restores efficiency, while routine inspections from a qualified pro help you catch problems early and keep your attic safe and energy-smart.
From average costs to expert advice, get all the answers you need to get your job done.
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