Custom iron door installations typically range from $2,500 to $6,000, depending on size, design complexity, and any structural modifications needed. This includes the door, hardware, professional installation, and proper weather sealing.That’s more than a basic door from a big box store, but significantly less than the long-term costs of repeatedly replacing inferior doors or dealing with security and energy efficiency problems. Quality iron doors last 20-30 years with minimal maintenance.We provide detailed quotes upfront with no hidden fees. What we quote is what you pay, including cleanup and warranty coverage on both materials and installation.