Spray foam service
Wall Insulation in Fargo, ND
New-construction and retrofit wall insulation for year-round comfort.
Spray foam in the walls creates a continuous air seal fiberglass batts can't match — fewer drafts, steadier room-to-room temperatures, and lower bills through Fargo's long heating season, for both new construction and retrofits.
Whether you're building new or upgrading an older home, spray foam in the walls creates a continuous air seal that fiberglass batts can't match. That means fewer drafts, steadier temperatures, and lower bills through Fargo's long heating season.
For existing homes, we can discuss the best approach for your wall construction during the free assessment.
We insulate walls for new builds in Horace and West Fargo and retrofits out to Casselton.
- Continuous air seal — no gaps or drafts
- Steadier room-to-room temperatures
- Works for new construction and retrofits
- Quieter, more comfortable living space
Good to know
Wall Insulation — Common Questions
Can you spray foam the walls of an existing Fargo home?
Yes, though it's more involved than open-wall new construction — it may mean working in sections from the interior or exterior. We'll scope the right retrofit approach for your wall construction during the free assessment.
What R-value do walls need in North Dakota's Zone 7?
ND follows the IECC Zone 7 requirements. Closed-cell foam hits code R-values in a thinner cavity than batt, which is a real advantage in older 2x4 walls. We spec the right foam and thickness for your assembly.
Is 'flash-and-batt' a good option for walls here?
It can be — if the closed-cell flash coat is thick enough to keep the batt side above the dew point in our climate. Too thin and you risk condensation inside the wall, so we size the foam layer specifically for Zone 7.
Will wall foam make my house quieter?
Yes. Sealing the wall cavity cuts air infiltration and dampens outside noise — a noticeable comfort upgrade alongside the energy savings.
From our blog
More on Wall Insulation
Jul 6, 2026
Spray Foam vs. Fiberglass in a Cold Climate Like Fargo's
Fiberglass is cheaper per square foot, so why do so many Fargo homes with 'enough' insulation still feel drafty in January? Here's how the two materials actually compare in Climate Zone 7.
Read more Jun 4, 2026
Spray Foam R-Values and North Dakota's Climate Zone 7 Code Requirements
What R-values North Dakota's climate zone 7 actually requires for attics, walls, and floors — and how open-cell vs. closed-cell spray foam stacks up against the code in a Fargo home.
Read more