Questions covered in this guide
Flag the home’s age before the quote
EPA explains that window work in older housing can disturb lead-based paint and create hazardous dust. For a pre-1978 home, discuss lead-safe renovation with a qualified contractor before any preparation begins. The age of a replacement window alone does not settle the condition of nearby painted components. This guide is for planning the professional scope, not for testing paint or removing it yourself.
Check which requirements apply
EPA’s renovation program generally covers paid work that disturbs paint in pre-1978 housing, including window replacement, subject to its stated exceptions. The minor-repair area exemption does not apply to window replacement. Ask the contractor to identify the applicable EPA or authorized-state program, relevant certification and the basis for any claimed exception for your project.
Put the work in the proposal
Create rows for the affected openings and adjacent finishes, assessment or testing if proposed, containment, occupant arrangements, cleanup and required records. Have the contractor explain what is included and what could change after assessment. Request the project-specific instructions for preparing rooms and keeping occupants away from the work area. Do not scrape or sand surfaces in advance to make the crew’s job easier.
Compare a complete installation price
The ordinary replacement-window reference in our calculator does not separately price lead-related work. Keep that work as a documented scope and price, or as an unresolved item, rather than assuming it is included in every bidder’s total. If a proposal says no special work is necessary, request its basis in writing. Use the worksheet to compare responsibilities and retain the contractor’s documentation with the completed project. Final applicability depends on the building, affected materials and governing program; confirm those details with the appropriate qualified provider.
Putting it into practice
The scope rows distinguish ordinary installation from lead-related assessment, containment and records. The guide avoids a homeowner testing procedure or invented surcharge and requests a documented basis for project-specific applicability.
Sources and supported claims
EPA identifies window replacement in older housing as work that can disturb lead-based paint and recommends lead-safe certified contractors.
Source ↗ · national · Checked 2026-10-12
EPA’s RRP contractor guidance generally covers paid paint-disturbing work in pre-1978 housing, subject to listed exceptions; window replacement is not eligible for the minor-repair area exemption.
Source ↗ · national · Checked 2026-10-12
More help with this decision
- Window replacement cost calculator
- Insert vs. full-frame window replacement: compare the scope
- Window energy labels: what U-factor and SHGC tell you
- Compare contractor quotes: price, scope and missing work
- A homeowner handoff checklist for new windows
- Aluminum-looking windows: ask what each frame surface is made of