Homes built before 1980 often require significant upgrades during renovation. Understanding these risks helps homeowners budget accurately and avoid surprises. Common Structural Issues Foundation settlement Outdated framing methods Termite or water damage Structural repairs are often discovered after demolition and can increase costs significantly. Electrical System Risks Older US homes may have: Knob-and-tube wiring Aluminum wiring Insufficient electrical capacity Modern renovations require updated panels and grounded wiring. Plumbing System Concerns Common plumbing issues include: Galvanized steel pipes Lead supply lines Poor drainage slopes Plumbing replacements improve water quality and system reliability. Hazardous Materials Many older homes contain: Asbestos Lead-based paint Federal and state regulations govern safe removal. Renovation Costs for Older Homes Renovating older homes typically costs 20%–40% more than newer properties due to system upgrades and remediation. Final Thoughts Older homes offer charm and character, but successful renovation requires careful planning, inspections, and realistic budgeting. Post navigation Luxury Home Renovation Trends in the USA That Are Worth the Money How Long Does a Home Renovation Take in the USA? Realistic Timelines Explained