Exterior Wall & Masonry Spray Foam Insulation
High-performance insulation for brick, block, and commercial exterior walls. Closed-cell spray foam for new masonry construction, and injection foam to retrofit existing block walls without tearing them apart.
Building New or Upgrading? We Have a System for Both
Masonry walls look solid, but without insulation they leak heat and pull in moisture. We seal them from the cavity out, whether the wall is going up now or has been standing for decades.
Brick-Over-Block Cavity Foam
New ConstructionWe spray closed-cell foam into the cavity between the block and the brick veneer before the brick goes up. Brick ties hold a minimum 2-inch depth, so coverage is consistent across the whole wall.
- One layer works as insulation, air barrier, vapor barrier, and moisture barrier
- Fills around ties, corners, and penetrations with no gaps
- Can stay exposed for up to six months while construction continues
CFI Injection Foam
Existing BuildingsFor walls that are already built, we inject foam directly into the hollow cores of 8- or 12-inch concrete block, from inside or outside the building. It fills the voids completely without major structural changes.
- No demolition or rebuilding the wall
- Install from the interior or exterior, whichever is easier
- Turns cold, drafty block walls into insulated ones
One Layer Does Four Jobs
A typical masonry wall needs separate insulation boards, an air barrier, and a vapor retarder, and every seam between them is a chance for a leak. Closed-cell spray foam replaces all of that with one continuous layer.
- Brick veneer takes the weather on the outside.
- Closed-cell foam fills the cavity at a minimum 2" depth, held by brick ties.
- Concrete block stays dry and protected behind the foam.
- The interior stays warm, dry, and draft-free.
See Injection Foam Go Into a Wall
Our crew injecting foam into an existing wall from the outside, plus a few quick looks at how we work on commercial jobs.
Stronger, Drier, More Efficient Exterior Walls
Lower Energy Costs
A continuous, high-R layer stops heat from escaping through block and brick, so heating and cooling systems work less.
Moisture Protection
Closed-cell foam keeps water vapor out of the wall, protecting masonry from Michigan's freeze-thaw cycles.
Fewer Wall Layers
One application replaces separate insulation boards, air barriers, and vapor retarders, with no seams to fail.
Air-Tight Envelope
Foam seals around ties, corners, and penetrations, closing the drafts that make masonry buildings feel cold.
No Major Demolition
Injection foam upgrades existing block walls in place. No tearing out the wall or rebuilding.
Built to Last
Our spray foam systems carry a manufacturer-backed Limited Lifetime Warranty.
Exterior Applications We Handle
Commercial New Builds
Brick-over-block and masonry walls on new offices, retail, and commercial buildings.
Existing Block Buildings
Injection foam retrofits for warehouses, shops, and older block structures.
Foundations & Rim Joists
Closed-cell foam where the building meets the ground, the leakiest spot in most structures.
From Plans to a Sealed Wall
Review the Wall
We look at your plans or existing walls and recommend cavity foam, injection foam, or both.
Coordinate the Schedule
On new builds, we work with your mason and GC so foam goes in before the brick.
Spray or Inject
Our crew applies foam to the target depth, or fills every block core on retrofits.
Clean Up & Inspect
We clean the site and handle inspections, so the job is ready for the next trade.
"Recently worked with them on a joint project. They insulated the crawl space and attic. Shout out Jamie for coordinating the process."DJ P. · Google review
"The entire process was smooth from scheduling through completion. The four-man crew arrived on time and was professional throughout the day."Cortnie S. · Google review
"Eric and his team did outstanding work. My home is air tight. Eric said my house would be like an insulated cooler when he finished, and he was right."Thomas W. · Google review
Exterior Insulation FAQs
How do you insulate a brick-over-block wall?
We spray closed-cell foam into the cavity between the concrete block and the brick veneer before the brick is laid. Brick ties keep a minimum 2-inch depth, and 2.25 inches of closed-cell foam delivers about R-14.
Can you insulate an existing concrete block wall?
Yes. Our CFI Injection Foam fills the hollow cores of 8-inch or 12-inch block walls from inside or outside the building, reaching up to R-18 without major structural changes.
Do I still need a separate vapor barrier?
In a closed-cell cavity application, the foam itself acts as insulation, an air barrier, a vapor barrier, and a moisture barrier in one layer. We'll confirm what your wall design and local code require.
Can spray foam be left exposed during construction?
The closed-cell foam we use in exterior cavities can stay exposed for up to six months without degrading, which gives masons flexibility on the schedule.
Do you work with general contractors and masons?
Yes. On new commercial builds we coordinate with the GC and masonry crew so the foam goes in at the right point in the schedule.
Planning a Masonry Build or Block Wall Upgrade?
Send us your plans or tell us about your building. We'll recommend the right exterior system and put together a free estimate.