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TRUSTED BY LENNOX, SD HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon27
    Verified insulation services reviews

Top-Rated Insulation pros in Lennox - Updated Nov 2026

Avatar for NuVision Spray Foam Insulation
NuVision Spray Foam Insulation
5.0(
11
)
Spray Foam Insulation - InstallBlown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Lennox, 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."
Pole Shed
Spray Foam Insulation
Spray Foam Insulation
Spray Foam Insulation
Spray Foam Insulation

+6

Response time3 days
16 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for High Caliber Insulation
High Caliber Insulation
New to Angi
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallInjection Insulation - Install

Serving Lennox, SD and surrounding areas

Approved

In business since 2005

Free estimates

Offers commercial services

We specialize in insulation installation and upgrades as well as roofing repair. Each of our employees boasts over 20 years of industry experience! We take pride in commitment to the quality of work we produce, and the long-term relationships we build with our clients. \nWe guarantee quality and complete satisfaction, featuring a 10 year warranty at no additional cost on all of our services. We set ourselves apart from our competitors by offering the highest quality of work combined with experience, guaranteed. Find another company with a lower price and we will beat the competitor’s price by 10%. Call today for a free estimate! \n

Synder
Synder
Synder
Synder
Synder

+1

8 neighbors recently requested a quote
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Insulation FAQs, answered by experts

Ductwork sweats due to a temperature difference between the air inside the ducts and the surrounding air, similar to how a cold drink develops condensation in the heat. This sweating is a sign that your HVAC system is not operating at peak efficiency. The best way to keep ductwork from sweating is to wrap it in proper insulation, which also improves your system's energy efficiency. Another option is to close off your crawl space and install a dehumidifier to dry the air and lower its dew point.

Hanging a thick blanket over your windows will help to keep the heat inside, but only a little. Covering the glass will also prevent the sunlight from getting in, which might actually decrease the efficiency of your window overall. If you get to the point where you’re hanging blankets over your window to keep warm, call in an expert to seal around your windows to prevent warm air from escaping. They may also recommend replacing old windows that aren’t as insulative as newer window technology. Sealing a window isn’t terribly expensive and can make a big difference.

One of the disadvantages of soffit vents is they can bleed warm air from the attic during winter, resulting in slightly higher energy bills and a colder house. There are ways to mitigate this effect—mostly just closing the vent in the fall. What’s most important is your attic is ventilated to some degree in the winter.

Unfaced wall insulation is easier to cut and install, making it the better choice for a DIY project. It’s also more affordable. But if it’s unfaced, you’ll likely need to add a vapor barrier to reach your desired R-value and efficiency, as it doesn’t offer any moisture barrier.

Faced insulation uses paper or foil to create a built-in barrier and doesn’t require an extra step. It’s also more fire-resistant and safe. But it’s quite a bit more expensive and a little bit harder to work with as a DIYer.

The most affordable way to insulate behind unfinished walls is to install fiberglass batts or rolls. These total around $0.75 per linear foot, with the width matching the gaps between standard studs perfectly. However, it’s important to consider the R-value of your insulation and the climate in your area, as fiberglass insulation isn’t the best in terms of preventing heat transfer. Plus, the most affordable option may cost more on electricity bills over time. The most affordable way to insulate behind finished walls is to leave them up and use blown-in insulation to avoid drywall replacement.

The Lennox, SD homeowners’ guide to insulation services

From average costs to expert advice, get all the answers you need to get your job done.