Serving Humboldt, SD and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Professional job, time efficient and clean. I would recommend hiring K&J for all you're insulation needs."
Serving Humboldt, SD and surrounding areas
Approved
In business since 2022
Free estimates
Credit card accepted
"Skylar, Cameron & their team are true professionals. They listened to my concerns, inspected my existing insulation and identified several areas the builder failed to properly insulate our new house. They provided a fair, honest and reasonable bid for our project. They arrived early and completed the install within 3 hours. They left our house cleaner than before they arrived. I highly recommend and look forward to using them again in a few years when I build my custom home."
+3
Serving Humboldt, SD and surrounding areas
Approved
In business since 2014
Free estimates
Credit card accepted
"AB Insulation came to our house, cleaned out the vents and also helped out with another project outside of our house. We are very happy with the work they did!"
Serving Humboldt, SD and surrounding areas
Approved
In business since 1913
Free estimates
Customers say: Quick response
"Easy to work with. Points out value of insulation."
Serving Humboldt, SD and surrounding areas
Approved
In business since 2011
Free estimates
Small jobs welcome
"They applied spray foam insulation in my attic space. I can now use this space for storage. The crew provided were very personable, they explained what the process works and how the project will go, and while on the job site they exhibited Professional behavior and worked cleanly. They took extra efforts to not track debris into my home."
+6
Serving Humboldt, SD and surrounding areas
Approved
In business since 2023
Free estimates
Offers commercial services
"Good hard working young men with great personalities. Got job done quickly & efficiently and for a reasonable price."
Serving Humboldt, SD and surrounding areas
Approved
In business since 2006
Free estimates
Small jobs welcome
"Extremely friendly and works well under terrible weather conditions."
Serving Humboldt, SD and surrounding areas
In business since 2006
Free estimates
Small jobs welcome
"Responsive, professional, high quality work, excellent customer service, we are very happy. Attic insulation upgrade was done very well"
+7
Serving Humboldt, SD and surrounding areas
In business since 2005
Free estimates
Credit card accepted
"Scott was professional and did the job within 2 days of me hiring him."
+4
Serving Humboldt, SD and surrounding areas
In business since 2011
Free estimates
Emergency services offered
"I hired KJ Drywall to frame, insulate, and sheetrock/texture a basement bedroom. Kevin did a great job. He was very knowledgeable about what needed to be done. He worked very hard and completed the job in a good time. He seems pretty efficient. We had a plumbing issue during his work, and he had someone out to fix it within about 45 minutes. The repair was made in Avery professional manner. Long story short, this fellow and his help were very good to work with, very fair with the price, And Kevin seems like just a really good guy. Glad to have worked with him."
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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