Renovating an older home can be exciting. Pre-1978 homes often have character, mature neighborhoods, original trim, hardwood floors, unique layouts, and craftsmanship that can be difficult to find in newer construction. But older homes can also come with hidden risks that need to be addressed before demolition, sanding, scraping, or remodeling begins.
The year 1978 matters because that is when the federal government banned consumer use of lead-based paint in residential properties. That does not mean every pre-1978 home has lead-based paint, but it does mean homeowners should treat painted surfaces with caution until they know what they are working with. According to the EPA’s Renovation, Repair and Painting Program, renovation projects in pre-1978 homes can create dangerous lead dust when old paint is disturbed.
A smart renovation plan should account for lead paint, dust control, safe containment, contractor certification, occupant protection, and proper cleanup. Before you start opening walls or removing finishes, here is what homeowners should know.
Do Not Treat an Older Home Like a Newer Home
A pre-1978 home needs a different planning process than a newer home. Even a simple update can disturb old materials. Replacing windows, removing trim, sanding cabinets, scraping exterior paint, opening walls, or remodeling a kitchen can all create dust if lead-based paint is present.
That dust is the main concern. Lead dust can settle on floors, furniture, toys, vents, clothing, and other surfaces. It can also travel outside the immediate work area if the space is not contained properly.
This is why older-home renovation should begin with caution. Before the project starts, ask what materials may be disturbed and whether those materials could contain lead. The EPA’s Protect Your Family From Lead in Your Home pamphlet is a good starting point for homeowners who want to understand how lead hazards can affect older homes.
If you are planning a larger remodel, it also helps to review how to prepare your house before construction begins. Contractors Candy’s guide on how to prepare your home for a major renovation can help you think through access, storage, timelines, and household disruption before work starts.
Lead Paint Is Not Always Obvious
Lead-based paint is not always peeling, chipped, or visibly old. It may be underneath newer layers of paint. A wall, door frame, window casing, stair rail, porch column, or cabinet may look recently painted while older lead-based layers remain underneath.
This matters because renovation work often cuts through layers. Sanding, drilling, demolition, scraping, and window replacement can disturb older paint even if the visible surface looks newer.
The CDC notes that homes built before 1978 are likely to have some lead-based paint. Homeowners should be especially careful around friction surfaces like windows and doors, impact surfaces like trim and corners, and exterior painted surfaces that have weathered over time.
If you are unsure whether lead-based paint is present, testing may be worth considering before the project begins. The EPA explains that certified renovators may use EPA-recognized test kits or paint chip sampling in certain renovation contexts.
Hire Lead-Safe Certified Contractors When Required
If you hire a contractor for renovation, repair, or painting work in a pre-1978 home, lead-safe certification may matter. The EPA’s RRP Rule applies to many paid renovation projects that disturb painted surfaces in pre-1978 homes and child-occupied facilities. The EPA says contractors working on covered projects must be certified and trained in lead-safe work practices.
This can include more than painters. Depending on the project, plumbers, electricians, remodelers, HVAC professionals, window installers, siding contractors, and other trades may disturb old painted surfaces.
Before hiring, ask direct questions:
Are you EPA Lead-Safe Certified?
Will this project disturb painted surfaces?
How will you contain dust?
How will the work area be cleaned?
Will occupants need to stay out of the space?
What happens if lead-based paint is found?
Will you provide lead-safe renovation information before work begins?
This is not about making the project complicated. It is about making sure the contractor understands older-home risks and follows the right process.
Contractors Candy’s article on how to compare contractor estimates without choosing the cheapest bid is useful here because older-home renovation costs should be compared by scope, safety practices, containment, cleanup, and experience, not price alone.
Understand What Lead-Safe Work Practices Look Like
Lead-safe work practices are designed to reduce exposure during renovation. They generally focus on containing the work area, minimizing dust, protecting occupants, and cleaning thoroughly after the work is complete.
The EPA’s Steps to Lead Safe Renovation, Repair and Painting explains how lead-safe planning applies to renovation work in pre-1978 housing and child-occupied facilities.
A lead-safe renovation may involve sealing off the work area with plastic sheeting, closing vents, using proper protective equipment, avoiding high-dust methods, cleaning with HEPA equipment, and keeping children and pets away from the work zone. Exterior projects may require ground containment so paint chips and dust do not spread into soil, landscaping, porches, or neighboring areas.
Homeowners should not assume ordinary plastic drop cloths and a quick sweep are enough. Lead dust can be fine and difficult to see.
Be Careful With DIY Demolition
DIY demolition can be risky in older homes. Pulling trim, knocking down plaster, sanding painted wood, scraping old paint, and removing cabinets can all create dust. Even if you are only trying to save money or prep the space before a contractor arrives, you may accidentally create a larger cleanup problem.
The EPA has specific lead-safe renovation guidance for DIYers. If you decide to do any work yourself, review lead-safe work practices first and avoid methods that create large amounts of dust.
High-risk DIY activities can include dry sanding, open-flame burning, high-speed grinding, uncontrolled demolition, and using regular shop vacs that are not designed for fine hazardous dust. Dust can move through vents, doorways, shoes, clothing, and tools.
If your renovation involves a kitchen, bathroom, basement, windows, doors, stairs, or painted exterior surfaces in a pre-1978 home, it is worth slowing down before starting demolition.
Plan for Dust Control Before Work Starts
Dust control should not be an afterthought. It should be part of the renovation plan from the beginning.
Ask how the contractor will separate the work area from the rest of the home. Will doors be sealed? Will vents be closed? Will floors be protected? Will furniture be moved or covered? Will workers enter and exit through a specific path? Will children, pets, or older adults need to stay elsewhere during certain phases?
Dust control matters even beyond lead. Remodeling dust can contain paint particles, drywall dust, wood dust, insulation fibers, and other irritants. Indoor air quality can suffer during renovation if containment and cleanup are not handled properly.
Contractors Candy’s guide on what homeowners should know about indoor air quality during remodeling is a strong related resource for thinking through ventilation, filtration, dust, and household comfort during construction.
Watch for Other Older-Home Hazards
Lead paint is one of the biggest concerns in pre-1978 renovation, but it is not the only one. Older homes may also have outdated wiring, old plumbing, asbestos-containing materials, poor ventilation, hidden moisture, structural changes from previous remodels, and insulation gaps.
Before starting a major project, homeowners should think about what may be hidden behind walls, ceilings, floors, and old finishes. This is especially important if the project involves opening walls, moving plumbing, adding electrical loads, replacing windows, or converting unfinished space.
For example, a basement remodel may reveal moisture problems that need to be addressed before walls and flooring go in. Contractors Candy’s article on what to know before converting a basement into living space explains why moisture, insulation, code requirements, and ventilation should be considered before finishing below-grade areas.
A renovation is the wrong time to cover up hidden issues. If old-home hazards are discovered, pause and address them properly.
Budget for Safety and Surprises
Renovating a pre-1978 home may cost more than expected because the work often requires extra care. Testing, containment, cleanup, specialty contractors, repairs, and code updates can all affect the budget.
This is not a reason to avoid renovating. It is a reason to budget realistically.
Homeowners should include a contingency fund for hidden conditions. Older homes can reveal damaged framing, outdated electrical work, water damage, old plumbing, insulation gaps, and previous DIY repairs once walls are opened. If lead-safe practices are required, those should be included in the project scope from the beginning.
Contractors Candy’s article on what makes a home remodel more expensive than expected is helpful for understanding why surprises, hidden damage, labor complexity, and scope changes can drive renovation costs up.
Think Carefully About Window Replacement
Windows are a major concern in pre-1978 homes because old painted window frames and sashes can be a source of lead dust, especially where friction occurs. Replacing windows can also disturb surrounding trim, casing, and exterior paint.
If your renovation includes window replacement, make sure the contractor understands lead-safe work practices. The project may require containment inside and outside the home, careful removal, dust control, and cleanup.
Window replacement can still be a smart upgrade, especially for comfort, drafts, and energy performance. But in an older home, the removal process matters as much as the new window itself.
The U.S. Department of Energy’s Energy Saver guide to window types and technologies can help homeowners understand performance considerations, while lead-safe planning helps make sure removal and installation are handled responsibly.
Protect Children, Pregnant People, and Pets
Lead exposure is especially concerning for children and pregnant people. The CDC explains that lead exposure can be harmful to children, and repairs or renovations in pre-1978 homes can create dangerous lead dust, especially when paint is heated, sanded, or scraped.
If young children, pregnant people, or pets live in the home, plan the renovation carefully. They may need to stay away from the work area or temporarily leave the home during certain phases. Toys, bedding, food bowls, and personal items should be moved out of the construction zone.
Do not let children play near exterior paint chips, dust, or renovation debris. Do not allow pets to walk through the work zone and track dust through the house.
The work area should remain off-limits until cleanup is complete.
Ask How Cleanup Will Be Verified
Cleanup is one of the most important parts of renovating an older home. Dust and debris left behind can continue to create exposure risks even after the work appears finished.
Ask the contractor what cleanup process they use. Will they use HEPA vacuuming? Wet wiping? Plastic containment removal? Proper disposal? Final visual inspection? Are they following EPA lead-safe renovation requirements when applicable?
Do not rely on appearance alone. A room can look clean while fine dust remains on floors, windowsills, trim, and surfaces.
If you are doing any DIY work, follow EPA guidance for cleanup and avoid spreading dust into clean areas. Work clothes, tools, and shoes can all carry dust if not handled carefully.
Do Not Ignore Moisture Problems
Older homes often have moisture issues that should be addressed before renovation. Water damage, roof leaks, plumbing leaks, poor drainage, basement dampness, or poor ventilation can create problems behind finished surfaces.
If you remodel over moisture damage, you may trap problems inside walls, ceilings, or floors. That can lead to mold, rot, odors, and future repairs.
Before renovating, check for stains, soft flooring, musty smells, peeling paint, condensation, and damp basement areas. Contractors Candy’s articles on what homeowners should know about mold prevention during remodeling and signs of a hidden plumbing leak behind walls can help homeowners identify issues that should be handled before new finishes are installed.
Plan Permits and Code Updates Early
Renovating an older home may trigger permit requirements or code updates, depending on the scope. Electrical work, plumbing changes, structural alterations, additions, basement conversions, and major remodels may all require permits.
This is especially important in older homes because previous work may not meet current standards. Once a wall is opened, outdated wiring, improper framing, or old plumbing may need attention.
Permits are not just paperwork. They help ensure the work is reviewed for safety and compliance. Contractors Candy’s article on how permits affect residential construction projects explains why homeowners should understand permit requirements before work begins.
Final Thoughts
Renovating a pre-1978 home can be worthwhile, but it requires more planning than renovating a newer property. Lead-based paint, lead dust, older materials, hidden moisture, outdated systems, and code requirements can all affect the project.
Before starting, determine whether painted surfaces may be disturbed, ask about EPA Lead-Safe Certification, plan for containment and cleanup, protect vulnerable occupants, and budget for surprises. Avoid uncontrolled DIY demolition, especially sanding, scraping, or removing painted materials without understanding the risks.
Older homes can be beautiful, functional, and full of character. The key is renovating them with care. A safer project starts before the first wall is opened, before the first window is removed, and before old paint is disturbed.
