Window Replacement
Window replacement removes old windows and installs new energy-efficient units, either as insert replacements or full-frame installations. It improves comfort, efficiency, and appearance, and is priced per window.
How window replacement is done
- Measure openings and order custom-sized windows
- Remove old sashes or full window units
- Prep and flash the opening for water management
- Set, level, shim, and fasten the new window
- Insulate the gaps and install trim
- Caulk, seal, and verify operation
What homeowners should know
- Decide between insert and full-frame replacement for your situation
- Compare energy ratings like U-factor and SHGC, not just brand
- Ask whether old windows may contain lead paint requiring safe handling
- Confirm they insulate and flash around each unit
- Check the warranty on both glass and installation
Permits, timelines & things to consider
- Permits may be required, especially for changing opening sizes
- Window quality and count are the main cost drivers, priced per window
- Full-frame replacement costs more but addresses rotted frames
- Homes built before 1978 may require lead-safe work practices
- Proper flashing and insulation prevent drafts and leaks
Frequently asked questions
How long does window replacement take?
A crew can typically install several windows per day, so most homes are completed in one to three days once the units arrive.
What is the difference between insert and full-frame replacement?
Insert replacement fits a new window into the existing frame, while full-frame removes everything to the rough opening, which costs more but fixes rotted frames.
Do new windows really save energy?
Efficient, properly installed windows reduce drafts and heat transfer, lowering energy use; look at U-factor and SHGC ratings when comparing.