Insulation Before & After in Dallas, TX
Photos cut through the sales talk. You can hear “we do it right” from any contractor in Dallas, but seeing a 1960s attic go from bare rafters and heat-stained decking to a clean, full layer of blown-in fiberglass tells you what actually happened. Most homeowners can’t tell good insulation work from bad until August hits and the upstairs won’t cool below 80. These projects show the difference. Each one ran on a written price agreed to before work started, and every one is covered by the 365-Day Done Right Promise.
Recent Transformations
Attic Insulation Rebuild in Lake Highlands
The problem: a 1972 ranch with original R-11 fiberglass batts, slumped and mouse-soiled in places. The homeowner’s AC ran from noon to midnight every day in July and the hallway still felt warm. We removed the old batts, air-sealed the top plates and plumbing penetrations, and blew Owens Corning fiberglass to R-38 across the full attic floor. The result: the AC now cycles off during the day, and the hallway temp matched the living room within two days. In Lake Highlands, we see this exact failure on houses built before Dallas tightened energy codes in the 1980s.
Blown-In Insulation for a Cottage-Style Home in East Dallas
A 1950s cottage near White Rock Lake had settled cellulose that measured under R-8 in spots. The owner noticed one bedroom stayed cold all winter while the living room was fine, classic sign of uneven attic coverage. We topped the entire attic with GreenFiber blown-in cellulose to R-30, paying close attention to the knee walls and the shallow eave areas where old cellulose had compacted. Now the bedroom holds temp with the rest of the house. Older East Dallas homes with low-slope roofs often hide insulation gaps behind the knee walls, and that’s exactly where we focused the extra material.
Insulation Removal After a Raccoon Takeover in Richardson
A homeowner in Richardson heard scratching above the master bedroom for a week. A raccoon had torn through the soffit vent and used the attic as a den, flattening and contaminating the blown-in insulation across half the attic. We removed all the affected material, sanitized the decking, and the homeowner brought in a wildlife company to seal the entry point. Then we came back and installed new Johns Manville blown-in fiberglass to R-38. The attic looks and smells new again. Raccoon damage is common in Richardson neighborhoods with mature oak trees close to the roofline.
Spray Foam Upgrade in a Preston Hollow Addition
The problem: a master suite addition built in the 1990s with fiberglass batts stuffed into a cathedral ceiling. In summer the room was noticeably warmer than the rest of the house, and the homeowner suspected the batts had sagged against the roof deck. We pulled the old batts and installed Demilec closed-cell spray foam against the roofline. Closed-cell foam gives you a higher R-value per inch and it seals air gaps at the same time. That addition now stays comfortable year-round, and the homeowner stopped running a window unit as backup. In Preston Hollow houses with vaulted ceilings, this is the fix we recommend most often because batts fail in that application.
Whole-House Insulation Refill in Mesquite
A 1980s two-story in Mesquite had original blown-in fiberglass that had settled to R-11 in the attic, well below current code for North Texas. The upstairs bedrooms were hot even with new windows. We blew CertainTeed fiberglass over the existing material to bring the total to R-38, and we added baffles at the soffits to keep airflow moving under the roof deck. Straightforward job, noticeable change, done in one day with a written price before we started. Mesquite homes from this era tend to be under-insulated from the start, and settling makes it worse over 40 years.
Attic Air Sealing and Insulation in Carrollton
This Carrollton homeowner had an insulation company blow new material in just three years ago, but the upstairs still wouldn’t cool. We found the real problem: the attic had no air sealing, so hot attic air was pulling straight through the can lights and the chase around the furnace flue. We sealed the penetrations with foam and then topped the insulation with Knauf blown-in fiberglass to restore full R-value across the attic. The owner said the difference was immediate. Air sealing is the step that most quotes in Dallas leave out, and it’s the reason new insulation sometimes doesn’t fix the problem.
Want Results Like These?
Every project above started with a phone call and a conversation about what was actually going on in the attic. If your rooms run hot in summer or cold in winter, call (940) 748-1726. We answer with a live person, schedule a visit, and hand you a written price before any work starts. Estimates are free.
Written by Bryce Holloway, Owner at Alden Insulation Dallas, serving Dallas since 2002.