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Cranston Paint& Wallcovering · Quincy, MAAnswered 24/7(617) 576-8235
Interior Painting in Quincy

Plaster wall repair in Quincy for cracks, bulges and fallen sections

A bulge that moves when you press it, a chunk that fell behind the radiator, or a crack running from the window corner to the ceiling after a nor'easter: old plaster gives warning before it lets go, and fixing it early saves the wall.

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  • Interior Painting
Horsehair plaster wall in a Quincy two-family bedroom under repair

$365 to $1,245Typical per wall in Quincy. The walk-through sets your number.

Brands we work with: Benjamin Moore, Sherwin-Williams, California Paints, Farrow & Ball, PPG, Fine Paints of Europe, Cabot, Zinsser, York Wallcoverings, Thibaut, Schumacher, Phillip Jeffries, Graham & Brown, Roman.

Quick answer

Plaster wall repair in Quincy means reattaching loose plaster to the lath with adhesive and plaster washers, filling cracks with mesh tape and setting compound, and rebuilding missing sections with a base coat and a smooth finish coat. A typical repair runs about $365 to $1,245 per wall, depending on how much plaster has detached. The walk-through sets the real number.

What signs mean your plaster walls need repair now?

A bulge that flexes when pressed

If the wall gives under your palm, the plaster has broken free of the lath and could fall. It can usually still be reattached if caught early.

Cracks from window and door corners

Diagonal cracks at openings come from house movement. They return unless taped with mesh and setting compound rather than surface spackle.

Crumbling after an ice dam leak

Meltwater softens plaster and rusts nails in the lath along top-floor outside walls. Once dry, soft areas need to be cut back to firm material and rebuilt.

Pieces fallen behind radiators

Chunks on the floor mean an area has already let go. The edges around it are often loose too and should be reattached before rebuilding.

Hollow sound when tapped

A dull, hollow knock instead of a solid thud across a wall shows where keys have broken, even if the surface looks fine.

Nail pops and spider cracks

Fine webbing across a wall or ceiling often means the finish coat is loosening from the base coat beneath it.

What plaster wall repair covers with us

Three-coat plaster on wood lath is stronger and quieter than drywall, and it's worth saving. It holds to the wall through keys, little blobs of plaster that squeezed between the lath strips when it was applied. Over a hundred years of house settling, ice dam leaks, door slams and freeze-thaw cycles, those keys break. The plaster then hangs on by friction until it bulges, cracks and eventually drops.

We repair plaster as plaster, not by covering it. Our painters reattach what's still there, rebuild what's missing, and finish the surface so it's ready for paint or wallpaper. Because we also paint and hang paper, the repair is planned for the finish that's going on it, which means fewer surprises when the topcoat goes on. If a section has fallen in your Quincy or Norfolk County house, call us around the clock and we'll schedule a look quickly.

Close-up of exposed wood lath behind broken horsehair plaster

Reattaching loose horsehair plaster instead of tearing it out

When plaster has lost its keys but is still in one piece, we can usually put it back. We drill small holes through the plaster, vacuum out the dust, inject a conditioner, then a plaster adhesive into the gap between plaster and lath. Then we press the section back gently with plastic plaster washers and screws, which hold it in place while the adhesive sets.

After a day or two, the washers come out or stay and get skimmed over, depending on the finish. This method keeps the original plaster, its slight hand-troweled character and its sound-deadening mass, and creates far less mess than tearing a wall down to studs. It also avoids disturbing lead paint layers and the decades of dust that live behind old walls.

  • Press test to map the loose area
  • Drill and vacuum small injection holes
  • Inject conditioner and plaster adhesive
  • Clamp back with washers and screws
  • Skim the surface once the adhesive cures

Rebuilding holes and missing plaster with the right materials

Where plaster has fallen out, we first check the lath. Broken or missing strips get replaced, or we fasten expanded metal lath or a cut piece of blueboard into the opening as a base. Then the hole is built up in layers: a gypsum base coat plaster to fill most of the depth, scratched so the next layer grips, and a thin finish coat troweled smooth to match the surrounding wall.

Using real base coat plaster for deep holes matters. Premixed joint compound applied an inch thick shrinks, cracks and stays soft. For cracks, we cut a slight V, apply fiberglass mesh tape, and cover it with a setting-type joint compound in two or three passes, feathered wide so the repair disappears under paint. Corners get new metal or paper-faced bead if the old edge has crumbled.

Containing dust and old paint during plaster repair

Plaster dust is heavy and fine, and in a house built before 1978 it often carries old lead paint from the surface. We seal the room or zone with plastic sheeting and taped seams, cover floors with rosin paper and poly, and put a cover over nearby radiator openings and heating returns so dust doesn't travel through the house or up a shared stair in a two-family.

We mist surfaces before scraping loose paint, use HEPA vacuums attached to sanders and drills, and finish each day with a HEPA vacuum and wet wipe of floors and sills. Debris is bagged in heavy contractor bags before it leaves the room. Families can keep using the rest of the house while we work.

How a plaster wall repair job runs

  1. Assessment by hand

    We tap and press the walls to map loose and hollow areas, check the lath, look for water causes, and explain repair options in a written estimate.

  2. Contain the work zone

    Plastic sheeting, floor protection and covered vents go up, with lead-safe setup for pre-1978 surfaces that will be scraped or drilled.

  3. Reattach loose plaster

    Injection holes, conditioner, adhesive and washers pull sagging sections back to the lath, and they're left to cure undisturbed.

  4. Rebuild missing sections

    Damaged lath is replaced or backed, then holes are filled with base coat plaster and finished with a smooth top coat.

  5. Tape and finish cracks

    Cracks and washer heads are covered with mesh and setting compound in feathered passes, then sanded with HEPA extraction.

  6. Prime and paint

    Repairs get a primer suited to plaster, and the wall is painted or prepared for wallpaper so the patch blends in.

What plaster wall repair costs in Quincy

Typical range in Quincy$365 to $1,245per wall

The range covers repair on one wall of an average room: reattaching loose areas, taping cracks and rebuilding a few small holes, ready for paint. Large fallen sections, ceilings and lath replacement cost more. The walk-through sets the real number.

What moves the number

  • How much plaster has detached and needs adhesive and washers
  • Size and depth of holes that need base coat and finish plaster
  • Condition of the wood lath behind missing sections
  • Lead-safe containment and cleanup on pre-1978 painted surfaces
  • Whether the repair is followed by paint, skim coat or wallpaper
  • Access, such as stairwells or areas behind fixed radiators

Compare every service side by side in our painting and wallpaper cost guide, or call (617) 576-8235 to set a walk-through.

Plaster in Quincy and Norfolk County houses, and what breaks it

Almost every house built in Quincy before 1940 has some original plaster, from the Colonial Revivals on Wollaston Hill to the two-families and triple-deckers in North Quincy and Quincy Point. Multi-family houses carry their weight on stacked framing that shifts over time, so cracks often line up floor to floor in the same corners. Porch roof leaks are another cause, softening plaster at front room ceilings and around windows. Older Milton and Dedham Colonials show the same patterns on a larger scale.

Coastal winters work on plaster too. Exterior walls get cold, interior heat pushes moisture outward, and the expansion and contraction loosens keys along outside walls first. Nor'easters drive rain into failed flashing and window heads, and ice dams back meltwater under shingles into top-floor rooms. That's why we often find bulges near windows on walls facing the bay, and why we check the whole wall rather than only the crack someone pointed to.

Where we do plaster wall repair

Quincy neighborhoods and nearby towns we cover most often, with ZIP codes:

See all 41 service areas

Plaster Wall Repair questions from Quincy homeowners

Is plaster wall repair better than replacing plaster with drywall in a Quincy two-family?

Usually, yes. Repairing keeps the wall's density, which blocks sound between rooms and between the two units, avoids the heavy dust of demolition, and doesn't disturb trim that's fitted to the old plaster thickness. Replacement only makes sense when large areas are crumbling or the lath has failed. We'll show you which walls fall into which group.

How long does plaster wall repair take before painting in a Quincy house?

Reattached plaster needs a day or two for the adhesive to cure. Base coat plaster in deep holes needs a day before the finish coat, and the finish needs to dry before primer. A typical single-wall repair takes two to four days with drying time, though our painters can work other rooms in between.

Can plaster wall repair be done right after a section falls during a nor'easter?

Yes, and it's best to call soon. The edges around a fallen piece are often loose too. Once the leak that caused it is stopped, we'll make the area safe, reattach the surrounding plaster, back or replace the lath, and rebuild the hole in layers. The phone is answered around the clock so you can get it on the schedule right away.

Why does a crack come back after plaster wall repair in an older Wollaston house?

Cracks return when they're filled with spackle or premixed compound without tape, or when the loose plaster around them wasn't reattached. The wall keeps moving and the filler cracks again. We tape cracks with mesh and setting-type compound and fasten any loose plaster around them first, which addresses the cause.

Does plaster wall repair disturb lead paint in pre-1978 Quincy homes?

It can, since drilling and scraping disturbs the surface layers. In pre-1978 homes we presume lead is present and set up containment, mist before scraping, use HEPA-connected tools and do a careful wet cleanup. Reattachment actually creates less dust than demolition, which is one more reason we favor it.

Related work we often pair with it

Drywall Repair & Patching

A doorknob hole in the hallway, a soaked ceiling after a pipe let go in a cold snap, or tape seams that ridge and crack every winter: drywall damage.

How we do it

Skim Coating & Wall Prep

Old plaster walls that are cracked, patched, wavy or scarred from wallpaper removal will show every flaw through fresh paint or new paper, and spot.

How we do it

Interior Painting

Walls that crack again a month after painting, flat paint that scuffs when you wipe it, and old oil layers that peel off in sheets: most Quincy.

How we do it

Ceiling Painting

A brown ring from the bathroom upstairs, a web of cracks spreading from the light fixture, or a ceiling that looks dingy next to fresh walls:.

How we do it

Talk to us about plaster wall repair

Our phone is answered around the clock. Tell us about the rooms or the house and we will set a walk-through and a written estimate.

Call (617) 576-8235
Call (617) 576-8235