Drywall is the most common wall surface in homes built over the last 50 years, and it’s also the most vulnerable to damage during wallpaper removal. Unlike plaster, which is rock-hard and can absorb a fair amount of punishment, drywall is essentially a sheet of compressed gypsum covered with a thin layer of paper. Tear that paper facing, over-soak it with water, or gouge it with a scraper, and you’re looking at hours of repair work before you can paint or re-paper.
The good news is that removing wallpaper from drywall doesn’t have to end in disaster. The key is understanding why drywall is so vulnerable and choosing a removal method that works with the material rather than against it. This guide covers what makes drywall different, why traditional removal methods often cause damage, and how to strip wallpaper safely using a controlled-moisture approach that protects the wall underneath.
Why Drywall Is So Vulnerable During Wallpaper Removal
Drywall (also called plasterboard or sheetrock) is made from a gypsum core sandwiched between two sheets of heavy paper. That paper facing is what gives drywall its smooth surface — and it’s also its weakest point.
When wallpaper was originally hung, an adhesive paste was used to bond it to the wall. If the wall was properly primed or painted beforehand, the paste bonded to the paint layer rather than directly to the drywall paper. That’s the ideal scenario, and it makes removal much easier.
The nightmare scenario — and it’s more common than you’d think, especially in homes built in the 1980s and 1990s — is when wallpaper was hung directly onto unprimed drywall. In this case, the paste bonded directly to the paper facing itself. When you try to remove the wallpaper, the drywall paper comes with it, leaving you with a rough, damaged surface.
There are three ways drywall typically gets damaged during wallpaper removal:
- Water damage. Too much water or steam softens the gypsum core and causes it to crumble, bubble, or warp.
- Gouging. Metal scrapers and aggressive scoring tools dig into the drywall paper facing, creating gouges that need filling.
- Tearing. Pulling wallpaper that’s bonded directly to unprimed drywall rips the paper facing off with it.
Any removal method needs to minimise all three of these risks. Unfortunately, the most common approaches don’t.
Why Common Removal Methods Damage Drywall
Steam strippers
Wallpaper steamers are effective at loosening adhesive, but they’re one of the riskiest tools to use on drywall. A steamer floods the wall with moisture very quickly, and drywall simply can’t handle that. Extended steaming in one area softens the paper facing and the gypsum underneath, causing bubbling, warping, and crumbling. Steam also creates a burn risk and leaves the room saturated with humidity, making the walls take longer to dry out. For plaster walls, steamers are fine. For drywall, they’re a last resort at best.
Spraying with water or chemical solutions
The standard DIY approach — scoring the wallpaper, spraying it with hot water or a removal solution, and scraping — is better than steaming, but still risky on drywall. The problem is control. When you spray a solution onto a vertical wall, gravity pulls it downward. Some areas get too wet while others barely get damp. The oversaturated sections risk water damage, while the dry sections won’t release the paste, leading to aggressive scraping that gouges the wall. You end up constantly re-spraying, re-soaking, and fighting the same sections over and over.
Vinegar, fabric softener, and home remedies
These work in the same way as commercial solutions — they’re applied as a liquid that you spray or sponge on. The active ingredients may help soften paste, but they share the same fundamental problem: you can’t control how much moisture reaches the drywall. And because they’re generally weaker than purpose-made products, you end up needing more applications and more soaking time, which increases the risk of water damage.
The underlying issue with all these methods is the same: they rely on moisture to soften the paste, but give you very little control over how much moisture reaches the drywall behind the wallpaper. What you need is a way to deliver sustained, controlled moisture to the adhesive without flooding the wall.
Before You Start: Test a Small Area
Before committing to a full room, test a small section to understand what you’re dealing with. Find an inconspicuous corner and try peeling back a small piece of wallpaper.
- If the wallpaper peels away and you can see paint or primer underneath, the wall was properly prepared before papering. Removal should be straightforward.
- If the wallpaper doesn’t budge, or if pulling it takes chunks of brown paper off the wall with it, you’re dealing with wallpaper applied to unprimed drywall. You’ll need extra patience.
- If water beads up on the wallpaper surface rather than soaking in, you have vinyl-coated wallpaper. This needs thorough scoring before any solution can penetrate.
Knowing what you’re dealing with before you start will save you time and prevent avoidable damage.
How to Remove Wallpaper from Drywall Safely: Step by Step
The safest approach for drywall uses HydroSheet technology — highly absorbent fabric sheets that hold a wallpaper removal solution against the wall surface. Instead of spraying liquid that runs down the wall and pools at the bottom, or blasting steam that saturates everything, the sheets deliver controlled, sustained moisture directly to the adhesive. The paste dissolves evenly while the drywall behind stays protected.
Here’s the complete process:
Step 1: Prepare the room
Move furniture away from the walls and lay down drop cloths. Remove electrical outlet covers and tape over the outlets with painter’s tape. If you’re cautious, turn off power to the room at the fuse box — you’ll be working with moisture near electrics, and it’s not worth the risk.
Step 2: Score the wallpaper
Run a wallpaper scoring tool over the entire surface using gentle, circular motions. This creates thousands of tiny perforations that allow the removal solution to penetrate through the wallpaper and reach the adhesive underneath. Don’t press hard — you want to puncture the wallpaper, not the drywall. This step is especially important for vinyl-coated wallpaper, which is completely waterproof without scoring.
Step 3: Prepare the solution and HydroSheets
Fill a bucket with warm water and add SimpleStrip Power Solution according to the instructions. The Power Solution contains active enzymes that break down wallpaper paste on contact — much more effectively than water alone or DIY mixtures. Immerse the HydroSheets in the solution and let them soak for a few minutes until fully saturated. Wring out the excess so they’re damp, not dripping.
Step 4: Apply the HydroSheets to the wall
Press the saturated HydroSheets flat against the scored wallpaper, making sure they’re in full contact with the surface. The sheets cling to the wall and hold the solution against the wallpaper, keeping it consistently moist. Use a pressure sprayer to give the sheets an occasional mist if they start to dry out. Leave them in place for 15–30 minutes, depending on the age and type of wallpaper.
This is where the approach differs fundamentally from spraying or steaming. The moisture is held in the fabric sheet, not running down the wall or soaking through uncontrollably. The drywall gets only the moisture it needs to release the paste, and no more.
Step 5: Peel the wallpaper
Once the paste has dissolved, remove the HydroSheets and place them back in the bucket — they’re reusable up to 50 times. The wallpaper should now peel away from the wall easily, often in whole strips. For any stubborn sections, use a plastic skimmer tool to gently lift the paper. The skimmer’s flexible plastic blade glides along the drywall surface without gouging, unlike metal scrapers.
Step 6: Clean the walls
Once all the wallpaper is off, wash the walls with warm water and a sponge to remove any remaining paste residue. The Power Solution will have dissolved most of the adhesive already, so this step is usually quick. If you find stubborn patches, apply a little more solution, wait a few minutes, and wipe clean.
Step 7: Let the walls dry
Give the walls at least 24 hours to dry completely before priming or painting. Good ventilation helps — open windows and run fans if possible. Don’t rush this. Painting or papering over damp drywall leads to peeling and mould.
How to Fix Drywall Damage After Wallpaper Removal
Even with the most careful approach, some minor damage can occur, particularly in older homes or where wallpaper was applied to unprimed drywall. Here’s how to deal with the most common issues:
Torn drywall paper
If the paper facing has been torn away in patches, apply a coat of oil-based primer (such as Zinsser Gardz or Kilz Original) to seal the exposed gypsum. This prevents it from absorbing moisture when you paint. Once the primer is dry, skim coat the damaged area with a thin layer of joint compound, let it dry, and sand smooth with 150–220 grit sandpaper.
Small gouges and scratches
Fill any gouges with lightweight joint compound using a putty knife. Let it dry, then sand flush. Prime before painting.
Bubbling or soft spots from water damage
Let the area dry completely — 24–48 hours with good ventilation. Once dry, minor bubbling can be sealed with primer and skimmed over. If the gypsum core is crumbling, you may need to cut out and replace that section of drywall. This is rare with controlled-moisture methods, but it can happen with steam or heavy spraying.
Preparing Your Walls for Paint or New Wallpaper
Once the wallpaper is off and any repairs are done, there’s one more critical step before painting or re-papering:
- Sand lightly with 220-grit sandpaper to smooth any rough patches or dried compound.
- Wipe the walls with a damp cloth to remove dust.
- Apply an oil-based primer. This is essential — any residual wallpaper adhesive is water-soluble, which means it will reactivate when it comes into contact with water-based paint. The result is bubbling, rough texture, and paint that won’t adhere properly. An oil-based primer like Zinsser Gardz seals the adhesive in and gives you a clean surface to work with.
Getting this prep right makes all the difference to your final finish.
Tips for the Best Results on Drywall
- Be patient with the soaking stage. Rushing it is the number one cause of drywall damage. Give the solution time to dissolve the paste.
- Use plastic tools wherever possible. Metal scrapers gouge drywall, especially when it’s damp. A plastic skimmer is much safer.
- Work in sections. Apply HydroSheets to one section while you peel and clean another. This keeps you moving without leaving any area soaking for too long.
- Don’t skip the scoring step. Without perforations, no solution can reach the paste — especially on vinyl-coated wallpaper.
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Plan for a full day. An average-sized room takes 4–6 hours for complete removal, cleaning, and basic prep. Don’t start at 4pm expecting to be done by dinner.
Frequently Asked Questions
Can I use a wallpaper steamer on drywall?
You can, but it’s risky. Steam introduces a lot of moisture very quickly, which can soften drywall’s paper facing and gypsum core. If you do use a steamer, keep it moving and never hold it in one spot for more than 10–15 seconds. A controlled-moisture approach using HydroSheets is significantly safer for drywall because you control exactly how much moisture reaches the wall.
What if the wallpaper was applied directly to unprimed drywall?
This is the toughest scenario. The paste will have bonded to the drywall’s paper facing, so some damage is almost unavoidable. Work slowly, keep the wall moist but not soaked, and expect to do some skim coating afterwards. In extreme cases, it may be easier to skim coat the entire wall or replace the drywall section.
How do I know if my drywall was primed before the wallpaper was applied?
Test a small area. Peel back a corner of wallpaper carefully. If you see paint or a glossy surface underneath, the wall was primed. If you see brown paper or the wallpaper pulls the wall surface apart as it comes off, it was applied to bare drywall.
Can I paint over wallpaper glue residue?
Not without sealing it first. Wallpaper adhesive is water-soluble, so water-based paint reactivates it — causing bubbles, rough texture, and poor adhesion. Always seal residual adhesive with an oil-based primer before painting.
How long does wallpaper removal take on drywall?
For an average-sized room (roughly 12 x 12 feet), expect 4–6 hours for complete removal, wall washing, and basic prep. Multiple layers, heavily adhered paper, or wallpaper applied to unprimed drywall will take longer. A large open-plan room could take a full weekend.
Ready to Get Started?
SimpleStrip wallpaper removal kits include everything you need to safely remove wallpaper from drywall — reusable HydroSheets, enzyme-based Power Solution, scoring tool, and plastic skimmer. Browse our wallpaper removal kits or learn more about how SimpleStrip works.