What you will know after this guide

  • Windows
  • Exterior doors
  • Locks
  • Security without blocking escape

Windows

Compare U-factor, energy rating, solar gain, condensation, air leakage, operating type, screens, maintenance and glazing replacement. A good window installed poorly can leak water and air.

Exterior doors

Check slab, frame, sill, weatherstripping, glazing, hinges, alignment, drainage and overhang. The sill must support the door and shed water; exterior sealant does not replace correct flashing.

Locks

Choose a listed lock, deadbolt with adequate throw, strike anchored into framing and controlled keys. A smart lock adds power, updates, backup access, logs and privacy; retain an entry method that does not depend on the cloud.

Security without blocking escape

Devices should resist intrusion without complicating escape. Avoid padlocks, bars or keys required from the inside on a required exit. Verify requirements for bedrooms, basements and guards.

Maintenance

Clean drains, lubricate per manufacturer, and check weatherstripping, joints, paint, anchorage and seasonal movement. Correct the source of misalignment before planing or forcing a door.

Verified references