This article covers a lot of the weirder stuff we see in the shops from people who come in with interesting DIY attempts. The interest in self-repair is the correct instinct; generally speaking, the problem is the toolkit that gets employed.

The glue problem

Wood glue sticks to bare wood & nothing else. It doesn't bond to old glue, finish, or dust. A loose joint that gets a squeeze of glue without being taken apart & cleaned will hold for a few months & then fail, because the new glue is only stuck to the old layer. School glue is worse: it's a water-soluble adhesive meant for paper, and it lets go the first time the joint carries real weight. Expanding polyurethane glues are the worst of all. They foam as they cure, so a joint that looks fully glued is actually being pushed apart from the inside.

The repair that lasts starts with disassembly. The joint comes apart, every trace of old glue gets scraped off, fresh glue goes onto bare wood & the joint gets clamped for a full day. The full process is required to get a good, long-lasting fit that won't break again in two months.

The fastener problem

Screws & nails really don't have any place in furniture repair. Frame joints are usually designed to be glued & clamped. A screw, by contrast, transfers the load into the wood around the joint, and on old or fragile wood that stress splits the grain. The sheer tension a screw transmits into the frame, both during installation & after, can crack a leg that was prior fine. A nail by comparison is just a straight line; they're slightly better, but still terrible for holding broken furniture together. Every fastener we pull out of a piece makes the real repair harder, because the timber around it is already broken & the extra strain from repairing nail holes can potentially add additional harm to the wood.

The best way to reinforce a joint is a dowel, glued & driven into a hole bored straight through both pieces so the load spreads the way the original joinery did. That's the classic method, and a hardware-store dowel does the job fine. One of our repairmen carves his own dowels by hand to fit each joint exactly. Where a fracture has already happened, the damaged section gets reconstructed & a new sealed joint is built into the piece. The work is closer to restoring a museum piece than to anything from a toolbox. Think of the scene in Toy Story 2, where the restorer brings a broken doll back one careful step at a time.

The cover-up problem

Spray paint sits on top of the old finish instead of bonding to the wood. It peels within a year & stripping it later means removing the original finish underneath. Duct tape does the same thing to fabric: the adhesive soaks in, stains the upholstery & never fully comes off. Both are attempts to hide damage & both make the real repair more expensive. Changing the color of a wood piece is a strip, sand, stain & seal job, and a torn cushion needs the fabric addressed from behind.

The timing problem

A squeaky or wobbly chair is almost always a glue failure. The joint has started to open, and it's not going to fix itself. Caught early, it's a straightforward reglue. Take it apart, clean it, glue it, clamp it. It's done in a day, and it's cheap. Left alone, that same joint keeps moving every time someone sits down, and each day of use damages the wood around it. The loose joint becomes a split joint, the split joint becomes a collapsed chair, and a collapsed chair is how people end up with sprained ankles. Catch it early & the fix is a glue job. Miss it & the fix becomes a reconstruction.

When it is a DIY job & when it is not

A simple joint on a piece that doesn't carry much weight can be re-glued at home, as long as it's properly taken apart & cleaned first. Anything load-bearing, anything with a fracture, anything you care about, or anything a previous repair attempt has damaged belongs in a shop. If a fix has already gone wrong, that's a repair we do every week, and it's almost always still fixable.

Not sure which one yours is? Send us a photo & we'll tell you. The estimate is free.