Bad drywall work is characterized by visible seams, wavy or uneven surfaces, protruding screwheads, and cracking along the edges or corners. It often reveals poor tape-and-mud techniques (like blistering) or sloppy sanding, which become highly obvious when light shines across the wall.
Common Signs of a Bad Drywall Job
Drywall costs range from $1.50 to $3.50 per square foot installed, with materials averaging $10–$20 per sheet. The final price depends on finish level, labor rates, drywall type, and project complexity. Understanding these variables allows homeowners and contractors to budget accurately and avoid unexpected expenses.
Symptoms of toxic drywall exposure can include respiratory problems like coughing, asthma-like symptoms, or difficulty breathing. Other symptoms may include frequent sinus infections, sore throats, bloody noses, and headaches. Chronic exposure can also cause skin irritations and eye infections.
How to identify “problem drywall”
Recognizing when to call experienced drywall companies can help you prevent further damage and maintain a safe, attractive living space.
Over time, breathing the dust from drywall joint compounds may cause persistent throat and airway irritation, coughing, phlegm production, and breathing difficulties similar to asthma.
Clean the walls using a microfiber cloth, soft brush or a shop vacuum with a HEPA filter. Wipe the walls down with a slightly damp microfiber cloth. Sweep the floor and collect remaining dust with a dustpan or your shop vacuum. Check the area and wipe, sweep or vacuum up any dust that remains.
Some drywall finishers add a small amount of dish soap (like Dawn) to drywall mud as a workability hack. They do this to act as a surfactant, which reduces the surface tension of the mud.
The only way to definitively know if drywall contains asbestos is by having a sample analyzed in a certified laboratory. Asbestos fibers are microscopic and cannot be identified by the naked eye.
If you need a small drywall crack repair, chances are the repair costs will also be small. However, your costs will be higher if the crack requires removing and replacing a large amount of drywall to complete the repair.
A sagging or bulging ceiling is a more serious sign of water in the house and possible structural damage — this usually needs immediate attention.
Yes, you can install new drywall over existing drywall. It is a great way to save on demolition time and mess, while also improving soundproofing. However, you must ensure the underlying wall is completely solid, free of moisture or mold, and not sagging.
Two common mistakes made during drywalling are improper joint compound application (such as applying it too thickly or not feathering the edges), and failing to stagger the seams across different studs, which weakens the wall and increases the risk of cracking.
Over time this dust can cause upper respiratory problems similar to asthma. If silica is present, workers may face an increased risk for silicosis and lung cancer. Old drywall mud and some gypsum boards can contain asbestos.
Warning signs of a ceiling under stress include:
One of the most immediate and obvious consequences of forgoing drywall tape is the appearance of visible seams and cracks. You'll have uneven, unsightly lines running across your wall that will make even the most forgiving paint job look terrible. Drywall is not a fan of moisture.
An orbital sander is an option for a large drywall project. This tool is lightweight and can perform the task in less time, but as a power tool it must be used carefully to avoid damaging the drywall surface. Use fine grit sandpaper, between 150 and 180 grit, to achieve the desired results.
Effects When Inhaled
Drywall dust allergy symptoms include: Runny nose. Coughing. Sinus congestion/infection.
Drywall dust is not acutely toxic, but it is a significant mechanical irritant. Breathing in high concentrations can cause coughing, sneezing, and irritation of the eyes, nose, and throat.
Yes, you can vacuum drywall dust, but never use a standard household vacuum. The ultra-fine particles and glues will bypass or clog filters, destroy the motor, and void your warranty. Use a HEPA-rated shop vacuum equipped with a fine-dust collection bag.
For just what's left on the drywall you can use the dry dust cloths that go in swiffer sweeper vacuums. Amazon has generic packs that work very well for this specific purpose. Or target, Lowe's etc.
Treatment may involve administering oxygen, whether through a mask, the nose, or through a tube; a bronchoscopy to view damage to the airway or suction debris and mucus; as well as medications or inhalers. While the lungs can heal to a certain extent, not all damage is reversible.
If you are suffering from the health symptoms described as common to the reports of exposure to problem drywall (irritated and itchy eyes and skin, difficulty in breathing, persistent cough, bloody or runny nose, recurrent headaches, sinus infection, and asthma attacks), consult your physician as soon as possible.
Symptoms of ODTS occur 4 to 12 hours after exposure and may include fever, weakness, headache, chills, body aches, cough, and shortness of breath. Inform your doctor about recent dust exposures when seeking treatment for respiratory illness.