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Spray Foam Insulation in Gladstone, MO (64118) · Local Professionals

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Gladstone's 1950s and 1960s brick and frame ranches sit on block basements with original attic insulation that has settled flat and lost its R-value, leaving homeowners with cooling bills that climb every summer and cold bedrooms every winter. Kansas City Spray Foam Insulation has been serving Gladstone (64118) and the surrounding Northland since 2012, replacing that dead insulation and sealing the air leaks that make those old ranches work harder than they should.

When a Gladstone homeowner calls us, it is usually because the attic hits 140 degrees in July, a room over the garage never reaches temperature, or the crawl space under the house has turned damp. We show up with a crew that knows the local building stock, measure what needs to happen, and give you a written estimate with the R-value and thickness specs that the job requires. No surprises, no pressure, and no rig-and-run outfits that vanish when the smell does not go away.

Spray Foam Insulation in Gladstone (64118)

The Gladstone ranches that define the Northland were built to a budget, and that shows in the insulation. A typical attic has 2 to 4 inches of blown fiberglass that compressed decades ago, leaving an R-value of maybe R-8 when you need R-30 or better. Block basements mean rim joists and band joists that were never insulated at all, and crawl spaces that sweat in spring and frost over in winter. Closed walls have no cavity insulation, and the ductwork routed through unconditioned attics loses 20 to 30 percent of your heating and cooling before it reaches the rooms you are paying to condition.

Spray foam fixes these problems because it seals and insulates at the same time. Open cell foam in the attic gives you R-3.6 per inch and lets moisture vapor move, which matters in Kansas City's mixed-humid climate. Closed cell foam in the crawl space or under rim joists gives you R-6 per inch and a vapor barrier all in one. We have been doing this work in Gladstone and across the Kansas City area since 2012, and we know the access challenges these older homes present: tight attic hatches, low crawl space headers, and the coordination it takes to work in an occupied home.

Our services in Gladstone

How a Job Works in Gladstone

We start with a free on-site assessment. You walk us through the problem, we look at the attic, crawl space, or walls, and we measure what needs to happen. We check for moisture, contaminated insulation, or anything that has to be fixed before we spray. If the old insulation is wet or compacted, we talk about removal first. If the moisture is coming from a roof leak or standing water, we tell you plainly: we fix the moisture first or we walk away.

Once we know the scope, we give you a written estimate with the R-value and thickness for every section. If you approve, we schedule the work around your schedule. On the day of the job, we set up mechanical ventilation in the attic or crawl space, spray the foam to the thickness specified, and let it cure. In Gladstone, most jobs happen in the attic or crawl space, and we protect your belongings and your floors. The smell is real for 24 to 48 hours, and we give you a clear re-entry window before you move back in.

When we are done, we clean up the work area, walk through the job with you, and leave your property the way we found it except for the insulation that is now there.

Spray foam pricing in Gladstone depends on what you are insulating and what has to come out first. A typical attic foam job on a Gladstone ranch runs from $1.50 per square foot for open cell, and a crawl space starts around $2,500 depending on the size and whether the existing insulation has to be removed. Wall injection foam for a closed wall runs from $2 per square foot. If you have wet or compacted insulation that has to come out, insulation removal starts at $950. The biggest cost factors are the area to cover, the R-value and thickness specified, whether you choose open or closed cell, and what has to be hauled away first. Call us at (816) 307-2678 for a free estimate. We measure on site, give you a written price with specs, and you know exactly what the job costs before we start.

✅ Written Estimates with R-Value & Thickness Specs, fully insured for work in Gladstone and nearby areas.

My attic gets to 140 degrees in the summer and my cooling bills are out of control. Is that normal for a Gladstone ranch?
It is normal for a Gladstone ranch with original or settled insulation, but it is not something you have to live with. Attics in the Northland bake because the original 2 to 4 inches of blown fiberglass has compressed to nearly nothing over 60 years. When the R-value drops to R-8 or R-10, the attic becomes a heat sink instead of a barrier. Open cell spray foam at R-3.6 per inch, applied to the proper thickness, stops that cycle. Most homeowners see a noticeable difference in the rooms directly below the attic and in the overall cooling load. Call us at (816) 307-2678 and we will measure your attic and give you a realistic picture of what is happening and what it costs to fix it.
I found damp insulation in my crawl space. Do I have to remove it before you can spray foam?
Yes. Spray foam does not stick to wet or damp insulation, and it will not seal properly if there is moisture underneath. Before we spray anything, we identify where the moisture is coming from. If there is standing water, a roof leak, or a plumbing issue, those have to be fixed first. Once the substrate is dry and clean, we can spray closed cell foam, which gives you both insulation and a vapor barrier. If the existing insulation is contaminated or too far gone, we remove it first. This is where honest work makes the difference. We walk away from a wet crawl space instead of spraying over it and creating a bigger problem. Call us at (816) 307-2678 if you have damp insulation and we will tell you what has to happen first.
What does spray foam cost for a Gladstone attic or crawl space?
Attic foam starts at $1.50 per square foot for open cell and runs higher depending on the thickness and R-value required. A crawl space starts around $2,500 and goes up with the size and whether old insulation has to be removed first. Wall injection foam runs from $2 per square foot. The real cost depends on the area you are covering, the R-value the space needs, whether you are choosing open or closed cell, and what has to come out before we spray. We measure on site, give you a written estimate with R-value and thickness for every section, and you know the total price before we start. Call (816) 307-2678 for a free estimate.
Who decides what R-value and thickness I need in my Gladstone attic, and who inspects the work?
The energy code in force at your address sets the minimum R-value, and the building official enforces it. Gladstone and Kansas City have adopted energy codes that specify R-30 or higher for attic insulation in most residential applications, but the exact requirement depends on your address and the building official's interpretation. When we give you an estimate, we specify the R-value and thickness needed to meet code at your location. Permitting and inspection requirements vary from city to city across the Kansas City area, so we help you understand what applies to your property. Check the City of Gladstone website at https://www.gladstone.mo.us for local permit and inspection requirements, or call us and we will walk you through it.
Can we stay in the house while you spray foam in the attic?
Yes, but with a clear understanding of the smell and the re-entry window. Spray foam has a strong odor for 24 to 48 hours while it cures. We set up mechanical ventilation in the attic to move the fumes out of the house, and we keep windows and doors closed to control the smell. Most families stay in the house during the work, but we give you a re-entry window of 24 to 48 hours before the attic is fully cured and safe to occupy or store items in. If you are sensitive to chemical smells or have respiratory concerns, talk to us when you call for the estimate. We can plan the work around your schedule and give you clear guidance on ventilation and timing.
Are you insured for spray foam work on my Gladstone property?
Yes. We are fully insured with general liability and workers' compensation coverage. When you hire a spray foam contractor, verify that they carry active insurance and that it covers the work they are doing. Do not take their word for it. Ask for a certificate of insurance, check the policy dates, and confirm the coverage limits are adequate for the job. We provide certificates of insurance to every customer before we start work.
When is the best time to have spray foam insulation done in Gladstone?
Spring and fall are ideal because the weather is mild and you can control ventilation without heating or cooling the house during cure. Summer is busy because cooling bills drive urgency, and we can do the work, but you will be managing the smell while running air conditioning. Winter is quieter, but cold attics take longer to cure and you have to manage heating. The real answer is: do it when the problem is costing you money or comfort. If your cooling bills are out of control in July or a room is cold in January, that is when you call. We work year-round and we schedule around your needs.
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Our services

Our Spray Foam Insulation Services in Kansas City

All your work handled by qualified professionals in Kansas City

Attic Spray Foam Insulation

Sealed attics that keep Kansas City ductwork out of July heat and January cold

Included in your service

  • Open-cell foam on the roof deck; never just piled on the attic floor
  • Shirtwaist and bungalow half-story slopes closed up to stop ice dams
  • Target R-value and thickness per pass written into the estimate
  • Gable and ridge details closed properly for a two-season Missouri attic
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Closed Cell Spray Foam Insulation

Two-pound foam for walls where Missouri vapor drive flips every season

Included in your service

  • R-6.5 per inch with its own built-in vapor retarder
  • The right call for basement foundation walls and Cass County shops
  • Racked in controlled passes; never one thick lift
  • Depth gauged at the wall because a thin pass fails the first hard freeze
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Open Cell Spray Foam Insulation

The friendlier board foot for Kansas City attics and interior walls

Included in your service

  • Half-pound foam that air-seals at a lower cost per board foot
  • Sound dampening for fourplexes; media rooms and shared walls
  • Where basement moisture or winter vapor calls for closed cell; we say so
  • Shaved flush to the framing and the offcuts bagged out
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Wall & Injection Foam Insulation

Closed walls filled without opening up a Hyde Park shirtwaist

Included in your service

  • Small ports drilled under a siding course or along a veneer mortar joint; then plugged and patched
  • Built for frame shirtwaist upper floors and 1940s-60s frame and veneer ranches
  • Solid limestone and double-brick walls get an honest no, there is no cavity to fill
  • Every cavity probed for fill rather than assumed full
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Crawl Space Spray Foam Insulation

Crawl spaces under Kansas City additions sealed against cold floors

Included in your service

  • Closed cell on the perimeter walls and the subfloor
  • Common under kitchen additions; sunrooms and enclosed back porches
  • Standing water and drainage fixed first or we decline the job
  • Full encapsulation referred out; the insulation is ours
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Rim Joist & Band Joist Spray Foam

The small job that finally warms a Kansas City basement and first floor

Included in your service

  • Every joist bay sealed along the top of the foundation wall
  • Basements are everywhere here and the rim is where the cold gets in
  • Half a day on site and felt the same evening
  • On old limestone foundations the pass is sized so the stone can still dry
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Garage Spray Foam Insulation

Turning a Blue Springs garage into space you can use all year

Included in your service

  • Ceiling bays under bonus rooms filled and shaved flush
  • Walls shared with the house sealed against both heat and frost
  • Workshop conversions specified around the tools you actually run
  • The door header and slab edge addressed; not stepped over
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Metal Building & Barndominium Spray Foam

The insulation that stops a Missouri shop from sweating and frosting

Included in your service

  • Closed cell straight to the underside of the roof panels
  • Cass; Clay; Platte and Lafayette County shops; pole barns and barndominiums
  • Condensation control settled before R-value is even discussed
  • Purlins and fastener lines sealed; not sprayed around
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Commercial & New Construction Spray Foam

Kansas City warehouses and production builds kept on their own schedule

Included in your service

  • Shells and warehouses from the West Bottoms and North Kansas City to the airport belt
  • Code-compliant assemblies documented for your city or county inspector
  • Phased around occupied floors and the Missouri build calendar
  • Ignition and thermal barrier requirements settled up front
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Insulation Removal

In a Kansas City attic the old comes out before anything new goes in

Included in your service

  • Vacuumed straight to the truck and bagged; never buried
  • Failed spray foam cut out; the job most installers will not touch
  • Vermiculite flagged for testing and left undisturbed
  • The usual first step on 1940s-60s Raytown; Grandview and Independence homes
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Insulation Replacement & Re-Insulation

A full reset for Kansas City attics twenty years past their job

Included in your service

  • Removal; air sealing and new foam handled as one scope
  • For material left flattened; rodent-fouled or wet after hail damage
  • Best timed with a hail re-roof while the deck is open and dry
  • One crew and one price with no handoff between trades
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Air Sealing

The cheapest comfort fix in a Kansas City house and it comes first

Included in your service

  • Top plates; chimney chases; can lights and the attic hatch
  • Sealed before insulating so the R-value can actually perform
  • Thermal camera images before and after on a cold or a hot day
  • Priced as its own job; never bundled in to pad a quote
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