Water Damage and Ceiling Stain Repair
Water damage is serious. Soft drywall must be cut out and replaced—patching won't stop mold if the board is saturated.

Glendale Quality Drywall provides drywall repair, installation, and finishing services across Alhambra, CA for homeowners, landlords, and property managers. We handle hole repairs, water damage, full wall replacement, taping, mudding, texture matching, and popcorn ceiling removal for residential and commercial work.
Alhambra’s older housing stock—craftsman homes, Spanish colonial revival buildings, and mid-century rentals—means drywall wear is constant. Tenants punch holes. Pipes leak. Settling cracks appear. Small nail holes and impact dents get filled with joint compound, sanded smooth, and primed for paint. Larger holes are patched with drywall tape, corner bead where needed, and multiple coats of compound until seamless.
Water damage is serious. Soft drywall must be cut out and replaced—patching won’t stop mold if the board is saturated. We identify the leak source, remove damaged sections, install new gypsum board, tape the seams, and finish. Ceiling stains from old roof leaks often need skim coating to hide discoloration even after the leak is fixed.
Alhambra’s year-round humidity causes drywall to absorb moisture. Compound cracks easily if not applied properly. DIY patching shows poor taping, visible seams, and uneven sanding. We use the right mud consistency and feather edges properly so patches disappear under paint.
New construction, room additions, and major renovations require drywall installation from the studs up. We measure openings, cut gypsum board accurately, fasten with proper spacing, and tape every joint. Multi-unit buildings get quick turnaround to minimize disruption.
We layout sheets perpendicular to studs, fasten at 12 to 16 inch spacing, cut openings for outlets and HVAC, then begin taping. Tape goes first, then joint compound in thin coats, sanding between each, until seams vanish.
Structural changes, severe mold, fire damage, and large water events require full wall replacement. We remove old material, inspect framing for damage, install new drywall, and finish to match existing walls. For Alhambra rental properties, full replacement is often faster than multiple patch jobs.
Professional drywall separates from amateur work in the finish. We apply tape, corner bead for inside and outside corners, and joint compound in multiple coats. A level 5 finish is completely smooth, ready for any paint. Texture painting and drywall texturing are common in older Alhambra homes; we match existing texture or remove it.
Level 1 is tape and one coat. Level 2 adds a second coat. Level 3 is three coats. Level 4 adds sanding. Level 5 is skim coated for a flawless finish suitable for high-gloss paint. We specify the right level for your project.
A skim coat is a thin layer of compound applied to the entire wall to hide imperfections. It’s essential for texture removal and blending patches into surrounding walls. Poor skim coating leads to re-work; we feather edges and sand carefully to avoid this.
Popcorn acoustic ceiling traps dust and can contain asbestos in homes built before the 1980s. We contain the work area, spray-dampen the surface, scrape carefully, and finish with smooth drywall or light texture. Smooth ceilings make older Alhambra homes and rental units look modern.
Multi-unit buildings need noise isolation. We install Type X gypsum board (fire-rated and denser than standard), resilient channels to decouple walls, and damping compound to absorb vibration. This reduces sound transmission between units, a major selling point for Alhambra rentals in downtown and mixed-use blocks.
Standard drywall is 5/8 inch. Thinner 1/4 inch goes on curves or as a second layer. Type X is thicker and fire-rated for garages and commercial spaces. Low-VOC joint compound and eco-certified gypsum board are available for health-conscious projects and cost slightly more. We choose the right material for load, code, and durability.
Storm damage, burst pipes, and fire damage don’t wait. We respond to emergency calls from Alhambra residents and property managers. Rapid assessment, board-up if needed, and prioritized scheduling get your property secure fast. Heavy rain, roof leaks, and plumbing failures leave walls compromised. We assess moisture depth, remove compromised drywall, dry framing, and install new material.
Square footage, finish level, and access determine price. Labor is the primary cost driver; material is modest. A small patch (under 6 inches) costs less than a room-sized wall. We provide estimates after inspection.
We stand behind the workmanship. California law requires drywall contractors to be licensed. We comply with all local codes, pull permits for structural work, and guarantee finish quality.
Plaster repair and interior painting often go hand in hand in older Alhambra homes where original plaster walls are common. If plaster is cracked but structurally sound, we repair it with patching compound, sand smooth, and prepare for paint. When plaster is severely damaged, we install drywall over the existing surface and finish to match, which is faster and more durable than attempting extensive plaster restoration. Interior painting requires properly finished drywall; our taping and mudding work provides the smooth surface that paint needs to look professional and last.
Exterior painting follows the same principle as interior work but demands weather-resistant primer and paint formulated for temperature swings and UV exposure. Exterior drywall on soffit, fascia, and wall returns must be properly sealed and finished before paint application. For homes in Alhambra that have vinyl siding or stucco, damage beneath often involves drywall repair before repainting exterior trim.
Wall covering—wallpaper, fabric panels, or sheathing—requires a perfectly smooth, properly sized surface. Drywall that has been taped and mudded at level 4 or 5 is the ideal base. Bumpy or uneven drywall shows through thin coverings and causes peeling and separation. We ensure your wall is ready before any covering goes up.
Professional drafting services support larger renovation projects. When you’re planning room additions, structural changes, or multi-unit work, detailed drawings clarify material specifications, dimensions, and finish sequences. A cost breakdown by project size is essential for budgeting: small repairs under one hundred square feet are fixed-price, medium patches and room work scale with labor hours, and large installations across multiple properties benefit from itemized cost breakdowns showing material, labor, and finish level separately. Commercial projects along Valley Boulevard and Garfield Avenue carry different code requirements from single-family work; professional plans ensure compliance and accurate estimates.
Water damage is serious. Soft drywall must be cut out and replaced—patching won't stop mold if the board is saturated.
Alhambra's year-round humidity causes drywall to absorb moisture. Compound cracks easily if not applied properly. DIY patching shows poor taping, visible seams, and uneven sanding.
We layout sheets perpendicular to studs, fasten at 12 to 16 inch spacing, cut openings for outlets and HVAC, then begin taping.
Structural changes, severe mold, fire damage, and large water events require full wall replacement.
Level 1 is tape and one coat. Level 2 adds a second coat. Level 3 is three coats. Level 4 adds sanding. Level 5 is skim coated for a flawless finish suitable for high-gloss paint.
A skim coat is a thin layer of compound applied to the entire wall to hide imperfections. It's essential for texture removal and blending patches into surrounding walls.
Why homeowners call us
Every drywall job is scoped and priced in writing, so the number you approve is the number you pay. If something behind the wall changes the work, we stop and price it first.
You speak to the people doing the work, not a call centre, and cover certificates go to your building manager or general contractor on request.
Containment, floor protection and same-day debris removal on every interior job — the space stays usable while the work is going on.
Crews work Alhambra and the surrounding cities every week, so a walkthrough is usually available within the same week you call.
FAQ
A small hole (3 inches) runs $50–150 depending on location and access. A large patch (two feet) costs $150–400. Full wall replacement varies by square footage and finish level. We provide an estimate after inspecting the damage.
Level 5 is a skim-coated, completely smooth finish with no visible seams or imperfections. It's required for high-gloss paint, critical lighting, or luxury finishes. Lower levels are acceptable for textured or matte paint. We recommend Level 5 for properties you plan to rent or sell.
It depends on saturation depth. Surface stains and minor moisture can be sealed and patched. Soft, spongy drywall must be cut out and replaced to prevent mold. We assess the damage and advise whether repair or replacement makes sense for your timeline and budget.
Call (213) 555-0110 and we will come out and price the work in writing.