Over time, the weight of the door pulls downward on the hinges. The screws loosen, or the hinge pins wear and no longer hold the door properly. This is the most common cause in older homes. The door drops, and the bottom edge catches the frame or floor.
Coastal Mediterranean homes are prone to humidity. Wood absorbs moisture and swells, especially at the bottom of the door where it's closer to the floor and air movement is lower. In summer, when you run air conditioning constantly, the moisture-heat cycle can cause significant swelling. This is not your faultâit's the climate.
Older homes and those built on soft soil (common near the coast) can settle unevenly. The door frame warps or tilts. The door, which was fine when installed, no longer fits the frame properly. This is more serious and requires professional intervention.
If the door itself is warped (twisted along its length) or has absorbed water at the bottom edge, it will bind. This is common in properties that have experienced flooding or where water from mopping has sat against the door for long periods.
If you identified loose screws in the hinges:
Use a screwdriver (usually Phillips head, size PH2) to tighten the screw on the top hinge first. Turn gentlyâa quarter turn at a time. Do not over-tighten; you'll strip the thread.
Tighten the bottom hinge screw in the same way.
If you have a third middle hinge (common on heavy doors), tighten that too.
Close the door and test. It should move more smoothly.
If screws are loose again within days, the problem is a stripped hole. Stop and contact a handymanâthey can fit a slightly larger screw or use a wood filler to re-anchor it.
If the door is only slightly swollen and rubbing at the bottom:
Open the door fully and wedge it so it won't move.
Use fine-grit sandpaper (120â150 grit) to sand the bottom edge where it's rubbing. Sand lengthwise, parallel to the grain, not across it. Work gently.
Sand a small amount at a time. Stop every 30 seconds and test the fit. It's much easier to sand more than to reverse over-sanding.
Once the door closes smoothly, stop. Apply a thin coat of clear varnish or wood sealer to the sanded edge to prevent further moisture absorption.
This is a temporary fix. If the door swells again in a few weeks (common in high-humidity periods), you'll need a handyman to assess whether the frame is the issue or the door needs professional planing.
If the top of the door frame has a larger gap than the bottom, the hinges need shimming. This is a slightly more advanced temporary fix.
Open the door and wedge it fully open so it won't swing.
Loosen the screws on the top hinge by a quarter turn (do not remove them).
Slide a thin shim (a wooden wedge, a piece of cardboard, or a plastic shim if you have one) behind the top hinge, between the hinge and the frame. This tips the top of the door outward slightly.
Tighten the screws again.
Close the door and test. You're aiming for an even gap all the way around.
If this works, you've bought yourself time. But shimming is a band-aid. A handyman can fit longer hinges or heavier-duty hinges that won't sag again.
Stop and call a handyman immediately if:
- The door is cracked, split, or visibly warped along its length.
- The frame itself is cracked or visibly out of square (you'll see gaps that don't match around the door edge).
- The door has been dragging for more than a few weeks and sanding or hinge tightening hasn't helped.
- The bottom of the door is wet, soft, or spongy to touchâthis suggests rot, and the door will need to be replaced.
- The door is swollen so much that tightening hinges or light sanding doesn't help, and it's getting worse. This suggests rising damp or a ventilation problem that needs professional diagnosis.
- The hinge screws keep coming loose within days, indicating a stripped anchor point in the frame.
- You're not confident using a screwdriver or sandpaper. A handyman can often fix the problem in 30 minutes. It's not worth the risk of making it worse.
A qualified handyman will assess the problem by doing much of what you've already done: checking the gaps, looking at the hinges, testing the floor level, and feeling for swelling. Here's what they'll likely do next.
If the problem is loose or worn hinges, they'll either tighten and adjust them, fit heavier hinges if yours are damaged, or replace them entirely. This takes 20â40 minutes.
If the problem is sagging, they'll either shimmy the hinges to correct the alignment, fit a longer or sturdier hinge, or (rarely) replace the frame. This takes 45 minutes to an hour.
If the door is swollen, they'll assess whether it's temporary (seasonal humidity) or permanent (water damage or rot). For humidity, they may plane the door edges professionallyâthis is smoother and more precise than DIY sanding. For damage, they'll advise whether the door can be saved or should be replaced.
A good handyman will also ask about ventilation and humidity in your home. If you're running air conditioning constantly in summer and the door is swelling seasonally, improving airflow through the property can slow or stop the problem recurring.
They'll leave the hinges or door in good working order and may apply a wood sealer to vulnerable edges if appropriate. They won't charge extra for this.
Humidity control: If you live on the coast or in a humid area, keep air circulating. Don't leave doors closed in damp rooms for long periods. Use a dehumidifier in problem areas, especially in winter when heating creates dry-warm-cold-humid cycles.
Maintenance: Check your door hinges once a year. A loose screw spotted early prevents a sagging door. Tighten gently if needed.
Ventilation: After using the bathroom or kitchen, open windows to allow steam to escape. Steam is the fastest way to swell wooden doors.
Floor protection: If you mop with water, avoid letting water sit against the base of doors. Dry the floor immediately.
Sealing: If your door is exposed (an external door, or a door to an unheated room), a good wood sealer on the edges reduces moisture absorption.
If you've tried tightening the hinges and light sanding and the door still drags, or if you're not confident doing it yourself, find a local handyman on MyCasa Spain. Most handymen can diagnose and fix a dragging door in one visit, and the cost is usually modest. It's often quicker and safer than struggling with it yourself.
