GISCO Corp was founded in Louisville, Kentucky in 1985 by John Stephen Long. What started as a small commercial insulation operation grew steadily over four decades into one of the region's most trusted mechanical insulation contractors — serving industrial plants, commercial buildings, and residential properties across Kentucky.
Today, Tony Long runs the company with the same philosophy his father instilled: do the job right, tell the client the truth, and never sell someone something they don't need. That last part is rarer than it sounds in the contracting world.
Four generations of the Long family have been involved in this business. That continuity isn't just a talking point — it means the person who answers your call has a stake in the outcome that goes beyond the next invoice.
