Drywall Patch and Texture

A Patch You Can See Is Not a Repair

The test for a finished patch is not whether it is filled. It is whether you can find it with a light held flat to the wall and with the back of your hand. If either one finds the edge, the paint will show it, and it will keep showing it for as long as the room exists.

We do this work as a service on its own, and we do it as the first half of most of our interior painting jobs.

The Common Damage in Long Beach Houses

Nail and screw pops, usually in ceilings and along the top of walls, where the framing has dried and moved. Corner bead damage from furniture. Doorknob holes. Water staining and softened board under an old roof leak or a bathroom fan that vented into the attic instead of outside. Hairline cracks radiating from door and window corners.

In the older bungalows the damage is different again. Lath and plaster fails by losing its key, the little squeezed ridges of plaster that grip behind the lath. When the key breaks, a section of wall goes hollow and slightly springy while still looking perfectly intact. Press on it and you can feel it move.

How We Repair Each One

Nail pops are re-fastened first. A new screw goes in beside the old fixing, into the framing, set just below the surface without breaking the paper face, then both are filled in coats. Filling a pop without re-fastening it puts the same bump back on the wall within a year.

Holes larger than a few inches get a backed patch or a cut-in piece of board with the joint taped, not a mesh disc slapped over a hole and skimmed. Mesh over a large opening flexes, and flexing under a rigid compound is exactly how a repair cracks in a ring.

Cracks are sorted into two kinds before anything is bought. Movement cracks, the ones that run diagonally out of a corner or follow a framing line, are opened out, taped or meshed and built up in coats. Surface crazing in old paint film is not a structural crack at all, and taping it is wasted money. Sanding it back and sealing it is the correct answer.

Hollow plaster is either re-keyed with adhesive through the face, where the section is small and otherwise sound, or cut back to firm material and rebuilt. What we do not do is skim compound across a hollow area, which looks perfect on the day and falls out later with the compound still attached to the loose plaster.

Water damaged board is cut out. Compound does not fix a board that has lost its integrity, and painting over a water stain without a stain-blocking primer means the stain comes back through the new paint over the following weeks, usually a shade browner.

Texture Matching

Most of the work is matching what is already there rather than inventing something. Knockdown, orange peel, light hand texture, the smooth walls in mid-century homes, and the hand-troweled surfaces in the older stock all need different tools and different mixes.

We match on a sample board first where the texture is at all unusual, hold it up against the wall and adjust before touching the actual repair. Spray texture is thinned to suit the pattern and the knockdown timing is what controls how tight or open it lands, which is a feel thing and the reason a first attempt on the wall itself is a bad idea.

On a hand-troweled 1930s wall there is no shortcut. It is done by hand, feathered wide, and it takes as long as it takes.

Sanding and Dust

This is the messiest work in the trade. Dry sanding compound produces a very fine dust that stays airborne for a long time and settles on everything, including inside closed cabinets if the house has been left open.

So the room gets sealed. Zippered plastic at the doorways, floors covered and taped at the perimeter, supply and return vents in the work area closed off, and the sander on vacuum extraction with a fine filter. Where the room and the material allow it, wet sanding with a damp sponge takes the dust out of the equation entirely, at the cost of a slower and slightly softer finish.

Clean-up happens at the end of each day, not the end of the job.

Pre-1978 Homes

If the house predates 1978, the old paint layers may contain lead, and sanding is exactly the wrong way to find out. We test first. If it is positive, the work changes to wet methods, full containment and controlled waste handling, and in some cases the honest recommendation is to leave that layer sealed under a bonding primer rather than disturb it at all.

A large share of the pre-war bungalows in this city fall into that category, so it comes up regularly rather than occasionally.

Drying Time Is Not Optional

Compound feels dry on the surface well before it is dry through. Sanding it early tears the surface and drags soft material out of the middle of the fill, which then needs another coat, so the shortcut costs a day rather than saving one.

Coastal mornings make this worse. A closed-up house with damp air in it will hold moisture in a thick fill overnight. We plan the coats around that and we would rather tell you the patching adds a day than hand you a repair that shrinks back and shows a ring in the paint next month.

Call (562) 399-6337 to have the damage looked at.