Door Hardware for Old Houses: What to Keep, What to Replace, and How to Tell the Difference

Old doors and hardware tell stories. Sticky locks, loose knobs, and painted-over hinges tell frustration stories. I’ve restored, replaced, and compromised across three houses. Here’s the practical guide.

Identifying Original vs Reproduction

Weight Test: Solid brass or bronze originals feel heavy. Reproductions are often lighter pot metal or thin brass plating.

Markings: Look for maker’s marks on the back of plates or locks. Research common 1920s manufacturers.

Wear Patterns: Authentic age shows in logical places. Reproductions can look artificially distressed.

Mortise Locks: Original deep-set locks are common in pre-1940s. They work beautifully when cleaned and lubricated but require specific keys or conversion.

Solid Brass vs Plated

• Solid: Lasts forever with polishing. Worth keeping or restoring.

• Plated: Wears through to base metal. Often better to replace for daily use doors.

I kept original brass on formal rooms and upgraded high-use doors.

When to Keep, Clean, or Replace

Keep and Restore:

• Solid working mortise sets on interior doors.

• Beautiful hinges or plates with character.

• Budget allows professional cleaning/rekeying.

Replace:

• Broken mechanisms on exterior or bedroom doors (security).

• Painted-over hardware that’s seized.

• Mismatched modern additions from previous owners.

Compromise: Modern levers on original plates where possible for accessibility.

Restoration Steps That Worked

1. Remove carefully and label.

2. Soak in vinegar or specialized cleaner.

3. Polish with brass cleaner or lemon/salt mix.

4. Lubricate locks with graphite (avoid oil on old mechanisms).

5. Reinstall with care to old wood.

Cost for cleaning set: $20–$50 DIY vs hundreds professionally.

Sourcing Replacements Without Antique Prices

• Salvage yards and architectural salvage.

• Online marketplaces (measure twice).

• Reproduction companies that match period styles.

• My father’s old shop wisdom: haggle at estate sales.

For our current house we mixed restored originals with a few strategic upgrades. The front door got full attention for security.

Dog and Daily Life Considerations

Levers are easier for paws (and hands) than knobs. We chose accessible hardware that still looks period-appropriate.

The satisfaction of a smooth-clicking restored door is worth the effort. No more wrestling.

Old hardware connects you to the house’s history. Smart choices keep the soul while making life livable.

Trust the tape — and the weight of the metal.