Lock Rekeying in Duluth, MN

Why keys change hands so often in Duluth

Every move leaves the question of who still has a copy, and Duluth has proportionally more renters than the county around it. Citywide, 58.3 percent of households own their home, against 81.1 percent in St. Louis County.

Rekeying resets the pins inside the existing cylinder so earlier keys stop working; the lock body, trim and bolt stay on the door. It suits hardware that still runs smoothly. If the cylinder is worn or the bolt drags, lock replacement may be the better route.

What is on the door

A 2025 housing needs analysis dates 43 percent of the city's housing units to before 1940 and another 30 percent to 1950 through 1979, so rekeying here covers very different hardware. A pre-war door may still carry a mortise lock, which can often be rekeyed instead of swapped out. A later door is more likely to have a knob or lever set plus a separate deadbolt, each with its own cylinder, and both can be keyed to one key.

Two-unit buildings hold 8.1 percent of Duluth homes by 2024 census figures, against 2.1 percent across Minnesota. When one exterior lock serves both households of a duplex, rekeying it means new keys for both, so settle that with the other unit first.

Landlords, tenants and new owners

• Landlords. Rekeying between tenants retires the last tenant's copies. Duluth City Code Sec. 29A-36(b) also gives tenants a remedy on deadbolts: if a unit lacks ones the law requires, the tenant can notify the landlord and the city's building official, who inspects. If the bolts are still not in place five days after the landlord gets notice, the tenant may have them installed and deduct the cost from rent under Sec. 29A-36(a).
• Tenants. Under Minnesota Statutes section 504B.211, a landlord may enter for a reasonable business purpose once a good-faith effort has been made to give at least a day's notice. Check whether your lease requires the landlord to hold a key before you rekey.
• New owners. Sellers, contractors and neighbors may still hold keys to the house you just bought.

This is general information, not legal advice. The lock rekeying page explains the work itself; for local housing, see Duluth.