Why Bay Area Doors Stick

The Bay Area's coastal climate creates a seasonal humidity cycle that affects every wood door in every home. In fall and winter, humidity rises — wood absorbs moisture, expands, and suddenly a door that swung freely in August is grinding against the frame in November.

This isn't a fluke. It's physics. Wood is hygroscopic — it absorbs and releases moisture with the surrounding air. A door that's well-fitted in summer will often be tight in winter, and vice versa. The problem is when the expansion goes beyond what the frame can accommodate, or when the door or frame has warped over time.

The Three Most Common Causes

When we get called out for a sticking door in Mountain View or Palo Alto, it's usually one of three things:

  • Seasonal humidity swelling — the door has expanded due to moisture absorption. This is the most common cause and is often self-correcting in dry months — but it can get worse each year.
  • Hinge issues — loose screws, worn hinge leaves, or a hinge that's been painted over can all cause a door to hang unevenly and bind against the frame.
  • Frame movement — the door frame itself has shifted due to settling, moisture damage, or improperly installed framing. This is less common but produces the most stubborn sticking.

What a Lasting Fix Looks Like

The fix depends on the cause. For seasonal swelling with no underlying damage, we typically plane the door on the hinge side (never the latch side — that changes the lock geometry), seal all exposed edges with primer or paint, and rehang the door with tight hinges.

For hinge problems, we start by tightening or replacing the hinge screws. If the holes are stripped, we fill them with wood glue and toothpicks before driving new screws — this is a five-minute repair that makes an immediate difference.

Frame movement is more involved. We assess whether the movement is structural (foundation issues, major settling) or cosmetic, and address accordingly. In many cases, we can re-seat the frame without major reconstruction.

Important: Sealing the door edges is the most overlooked step. An unsealed edge allows moisture to enter the wood directly, worsening swelling year over year. Any door repair that doesn't include sealing the top, bottom, and edges is only a partial fix.

When to Call a Handyman vs. a Contractor

Most sticky door issues are straightforward handyman work — planing, hinge adjustment, sealing. You should call a general contractor if the frame itself has moved due to foundation settling, if there's visible rot in the frame or door, or if the door opening has become out of square by more than 1/4 inch.

For everything else — call us. We service all of Mountain View, Palo Alto, Sunnyvale, and surrounding Bay Area cities 7 days a week.