Allen's 1980s and 1990s brick two-stories line quiet streets with mature oaks and elms, and many of them have the same problem: hot upstairs bedrooms that never cool, and attics that hit 140 degrees by mid-afternoon in July and August. If your home in the 75002 ZIP code is one of them, spray foam insulation and air sealing can make a real difference.
Mckinney Spray Foam Insulation has been serving Allen and the McKinney area since 2012. We know these neighborhoods, we know what happens when an attic is poorly sealed or under-insulated, and we know how to fix it with spray foam that stays in place and performs year after year.
Spray Foam Insulation in Allen (75002)
Allen's housing stock is mostly two-story brick construction from the 1980s through the 2000s, with vaulted ceilings, bonus rooms over three-car garages, and steep composition-shingle roofs. Almost every one of these homes has its air handler and ductwork routed through a vented attic. In summer, that attic becomes a furnace. The AC unit works overtime trying to cool an attic that is leaking conditioned air through gaps around the ductwork, through the rim joist where the second story sits on the first, and through every seam and penetration in the roof. In winter, moisture from the living spaces below condenses on the underside of the roof sheathing and on the ductwork itself, soaking the insulation and promoting mold growth. Closed cell spray foam seals those gaps, holds moisture out, and keeps the attic temperature closer to the conditioned space below.
We've been insulating homes and commercial buildings across the McKinney area for over a decade. We understand the Blackland Prairie climate, the summer heat load, the occasional spring hail and winter ice storms, and the way older insulation compresses and fails. If your Allen home has a hot upstairs, a damp crawl space, or insulation that's seen better days, we can help you understand what needs to happen and give you a realistic estimate to do it right.
Our services in Allen
- Attic Spray Foam Insulation in Allen · Open-cell foam on the roof deck turns a 150°F McKinney attic into conditioned…
- Closed Cell Spray Foam Insulation in Allen · Two-pound closed-cell foam delivers R-6.5 per inch with its own vapor retarder…
- Open Cell Spray Foam Insulation in Allen · Half-pound open-cell foam air-seals attics and walls at a friendlier price per…
- Wall & Injection Foam Insulation in Allen · Injection foam fills closed walls through small drilled ports, no demolition.
- Crawl Space Spray Foam Insulation in Allen · Closed-cell foam on pier-and-beam subfloors stops cold floors in a freeze and…
- Rim Joist & Band Joist Spray Foam in Allen · Band joists; cantilevers and bonus-room floors over garages leak conditioned…
- Garage Spray Foam Insulation in Allen · Garage ceilings under bonus rooms and walls shared with the house are…
- Metal Building & Barndominium Spray Foam in Allen · Closed-cell foam is the insulation that stops a Texas metal building from…
- Commercial & New Construction Spray Foam in Allen · Warehouses; offices; churches and production builders served on schedule.
- Insulation Removal in Allen · Old blown-in and batts vacuumed out before any new foam goes in, never buried.
- Insulation Replacement & Re-Insulation in Allen · The full reset: old material removed; gaps air-sealed…
- Air Sealing in Allen · Top plates; can lights; chases and attic hatches leak more cooled air than most…
How a Job Works in Allen
We start with a free on-site assessment. One of our team members will visit your home, look at the attic, crawl space, or walls that need insulation, take measurements, and talk through your goals. We'll explain what's there now, what's failing, and what open cell or closed cell spray foam will do for you. If insulation has to be removed first, we'll walk you through that process and the cost. You'll get a written estimate that spells out the R-value and thickness we'll deliver, so you know exactly what you're paying for.
On the day of the work, our crew will set up mechanical ventilation to manage the spray and odor during application. If you're living in the home, we'll coordinate a re-entry window of 24 to 48 hours after the foam cures. We'll protect your belongings, seal off the work area, and keep the mess contained. Attic work is tight and sometimes dusty; we respect your home and clean up thoroughly when we're done.
Once the foam has cured and we've confirmed the thickness and coverage, we'll do a final walkthrough with you, answer any questions, and leave you with documentation of what was installed. You'll be able to see and feel the difference in comfort and energy use within the first few weeks.
Pricing for spray foam insulation in Allen depends on what you're covering, how thick the foam needs to be, whether you're using open cell or closed cell, and what has to be removed first. An attic top-up with open cell foam typically runs from $1.50 per square foot; closed cell is denser and costs more, starting around $1.20 per board foot. Crawl space encapsulation with spray foam starts around $2,500 for a typical Allen home. Wall injection foam for closed cavities runs from $2 per square foot. If old, compressed, or rodent-fouled insulation has to come out before new foam goes in, removal adds $950 and up. The best way to know what your home will cost is to call us at (469) 247-0288 for a free estimate. We'll measure the space, discuss your goals, and give you a firm price in writing with the R-value and thickness spelled out so there are no surprises.
✅ Written Estimates with R-Value & Thickness Specs, fully insured for work in Allen and nearby areas.
