Upland Garage Door Co. installs insulated garage doors in Upland for the same reason most homeowners here end up asking about them: the garage is the hottest room in the house from June through September. Insulation fixes that, and it brings two benefits most people don’t expect, a quieter door and a stronger one.
Rancho Cucamonga homeowners with attached garages ask for the same upgrade.
Why insulation matters in an Upland garage
100-degree summers and attached garages
A single-layer steel door facing west becomes a radiator by 3 p.m. On an attached garage that heat moves through the shared wall and into the house, and the air conditioner pays for it.
Rooms above or beside the garage
A bedroom over the garage or a home office next to it takes the garage’s temperature. Insulating the door is cheaper than insulating the garage ceiling and makes a bigger difference.
Noise from Foothill Boulevard and the 210
Homes close to Foothill, Baseline or the 210 corridor get traffic noise straight through a thin door. An insulated door’s foam core and double skin cut it noticeably.
Understanding R-values
R-6 to R-9: polystyrene
A polystyrene board fitted behind the steel skin. Good value, a real improvement over single-layer, and enough for a detached or lightly used garage.
R-12 to R-18: polyurethane
Polyurethane foam injected between two steel skins and bonded to both. Roughly twice the insulation per inch of polystyrene, and the standard for attached garages and rooms over the garage.
Insulated doors are quieter and stronger
The foam core damps vibration, so the door doesn’t drum when it runs or rattle in the wind. The bonded sandwich also resists dents far better than a single skin and holds its shape under Santa Ana wind loads, which matters in north Upland and San Antonio Heights.
Adding insulation to an existing door vs replacing it
Insulation kits for existing doors add a few points of R-value but also add weight the springs weren’t sized for, and they never seal the edges. If the door is sound and under 10 years old, a kit is a modest improvement. If the door is older, a new insulated door is the better spend.
Insulated garage door pricing
Insulated doors run from the middle of the $1,200-3,500 range for a polystyrene single door to the top for a polyurethane double door with windows. The quote shows the price difference between R-levels so you can decide what the garage needs.
Frequently asked questions
What R-value do I need?
R-6 to R-9 for a detached garage; R-12 or better for an attached garage or any living space over or beside it.
Does an insulated door need a bigger opener?
Often. A polyurethane double door usually needs 3/4 HP. We check the existing opener when we measure.
Will it really lower my cooling bill?
On an attached garage, yes, though the bigger day-to-day difference is a garage you can stand in during August.
Cooler garage this summer? Call Upland Garage Door Co. at (909) 858-7802.