Question 1

What is the best way to prepare walls before installing wallpaper?

Accepted Answer

The best way to prepare walls for wallpaper is to make sure the surface is clean, dry, smooth, sealed, and structurally sound. Remove dust, grease, loose paint, old adhesive, nails, and wall plates before installation. Holes, cracks, dents, and heavy texture should be repaired and sanded smooth because wallpaper will not hide major wall imperfections. For best results, walls should be primed with a wallpaper primer or wallcovering primer before hanging the paper. Primer is especially important on new drywall, freshly plastered walls, repaired areas, glossy paint, dark paint colors, and porous surfaces. A properly primed wall helps wallpaper adhere evenly, allows easier adjustment during installation, and makes future removal cleaner.

Question 2

Do I need to prime my walls before wallpaper installation?

Accepted Answer

Yes, in most cases you should prime your walls before installing wallpaper. Wallpaper primer creates a stable surface between the wall and the adhesive. It helps prevent paste from soaking too quickly into drywall or plaster, reduces the risk of bubbling, and gives the installer more time to position each strip accurately. Skipping primer can cause problems such as poor adhesion, visible seams, staining, difficult removal, or damaged drywall when the wallpaper is eventually taken down. If you want a professional wallpaper finish, wallcovering primer is one of the most important preparation steps.

Question 3

Can wallpaper be installed over painted walls?

Accepted Answer

Wallpaper can usually be installed over painted walls if the paint is fully cured, firmly bonded, clean, and not peeling. Glossy paint should be lightly sanded or deglossed, then primed with a suitable wallpaper primer. Matte or eggshell paint may still need primer, especially if the wall is porous, recently painted, dark in color, or uneven in finish. Do not install wallpaper over flaking paint, damp paint, dusty paint, or paint that has not fully cured. If the paint lifts when tape is applied and removed, the surface is not ready for wallpaper.

Question 4

Can wallpaper be installed over textured walls?

Accepted Answer

Wallpaper should not be installed directly over heavily textured walls. Texture can show through the wallpaper, weaken adhesion, create air pockets, and make seams more visible. Light orange-peel texture may sometimes be corrected with lining paper or professional preparation, but heavy knockdown, popcorn, sand texture, or plaster texture usually needs to be skim-coated and sanded smooth first. For the cleanest result, the wall should feel smooth to the hand before installation. If you are installing a thin paper, metallic wallpaper, silk wallcovering, grasscloth, or mural, surface preparation becomes even more important because those materials can reveal wall irregularities.

Question 5

How do I know how much wallpaper to order?

Accepted Answer

To calculate how much wallpaper you need, measure the height and width of each wall, then add them together to determine the total wall area. However, wallpaper is not ordered by square footage alone. You must also account for roll width, roll length, pattern repeat, match type, doors, windows, waste, and whether the wallpaper is sold as a single roll, double roll, panel set, or mural. As a professional rule, always order extra wallpaper from the same production batch or dye lot. Extra material helps cover pattern matching, trimming, mistakes, future repairs, and color variation between batches. For large repeats, murals, staircases, angled ceilings, and complex rooms, consult a professional before ordering.

Question 6

What tools do I need to install wallpaper?

Accepted Answer

Common wallpaper installation tools include a tape measure, level or laser level, pencil, smoothing brush or plastic smoother, seam roller, sharp utility knife, snap-off blades, straightedge, sponge, bucket, paste brush or roller, tray, ladder, drop cloth, and clean cloths. Depending on the wallpaper type, you may also need wallpaper paste, a pasting table, primer, lining paper, or a specialty adhesive. Sharp blades are essential. Dull blades can tear wallpaper, especially around ceilings, baseboards, windows, outlets, and corners. Professional installers change blades frequently to create clean cuts.

Question 7

What is the difference between paste-the-wall and paste-the-paper wallpaper?

Accepted Answer

Paste-the-wall wallpaper means adhesive is applied directly to the wall, and the dry wallpaper is then placed onto the pasted surface. This is common with many non-woven wallpapers and is popular because it is generally cleaner and easier to handle. Paste-the-paper wallpaper means adhesive is applied to the back of the wallpaper before it is hung. Traditional paper wallpapers often require booking, which means folding the pasted paper back onto itself for a short time so the adhesive can activate and the paper can relax before installation. Always follow the manufacturer's instructions for the specific wallpaper you purchased. Using the wrong installation method can cause shrinking, seam gaps, bubbles, staining, or poor adhesion.

Question 8

What is peel-and-stick wallpaper, and is it easier to install?

Accepted Answer

Peel-and-stick wallpaper has a self-adhesive backing, so it does not require traditional wallpaper paste. It can be a good option for renters, temporary decorating, small accent walls, closets, dorm rooms, and low-commitment design updates. However, peel-and-stick wallpaper still requires careful wall preparation, accurate measuring, slow alignment, and a smooth surface. Peel-and-stick wallpaper is not always the easiest option for large walls or complex patterns because repositioning large panels can be challenging. It may also perform differently depending on wall texture, paint finish, humidity, temperature, and surface cleanliness.

Question 9

How do I start the first strip of wallpaper straight?

Accepted Answer

Do not rely on the corner of the room as your starting line because many walls and corners are not perfectly straight. Instead, use a level or laser level to draw a vertical plumb line. Align the first strip of wallpaper to that line, leaving a small amount of extra paper at the ceiling and baseboard for trimming. The first strip determines the alignment of the entire wall. If the first piece is crooked, every following strip can become progressively more misaligned. This is especially important for stripes, geometrics, panels, murals, and large-scale patterns.

Question 10

What does wallpaper pattern repeat mean?

Accepted Answer

Wallpaper pattern repeat is the vertical distance before the design repeats itself. A small repeat creates less waste, while a large repeat requires more material because each strip must be cut so the design lines up correctly. Pattern repeat is especially important for florals, botanicals, chinoiserie, damask, toile, geometric designs, and scenic wallpapers. When ordering wallpaper, the pattern repeat affects how many rolls are needed. A room with a large-scale wallpaper may require more rolls than the same room using a plain texture or small print.

Question 11

What is the difference between straight match, drop match, and random match wallpaper?

Accepted Answer

A straight match means the pattern lines up horizontally from one strip to the next. A drop match means the pattern shifts down on the next strip, often creating more waste but producing a more complex design flow. A random match means the pattern does not need to be aligned, which is common with some textures, grasscloths, and abstract designs. Understanding the match type before cutting wallpaper is critical. Cutting too many strips without checking the match can waste material and make the installation impossible to complete correctly.

Question 12

How do I install wallpaper around corners?

Accepted Answer

Corners should be handled carefully because most corners are not perfectly square. The professional method is usually to wrap a small amount of wallpaper around the corner, then overlap or continue with the next strip using a new plumb line on the adjacent wall. This prevents the pattern from drifting and helps the wallpaper sit properly. Do not force a full-width strip around an uneven corner. It can cause wrinkles, pulling, misalignment, or lifting seams. For bold patterns and murals, corners require extra planning before installation begins.

Question 13

How do I install wallpaper around outlets and switches?

Accepted Answer

Before working around outlets and switches, turn off power to the area when appropriate and remove the cover plates. Hang the wallpaper over the opening, then carefully cut an X or small opening over the box and trim the excess with a sharp blade. The cover plate should hide the edges once reinstalled. Never cut too far outside the cover plate area. Always work slowly, keep hands and tools dry, and follow proper electrical safety practices.

Question 14

How do I prevent wallpaper bubbles?

Accepted Answer

Wallpaper bubbles are often caused by poor wall preparation, insufficient paste, trapped air, incorrect booking time, overly porous walls, or rushing the smoothing process. To prevent bubbles, prime the wall, apply adhesive evenly, follow the correct installation method, and smooth each strip from the center outward. Small bubbles may disappear as the wallpaper dries, depending on the material. Persistent bubbles can sometimes be corrected with a small amount of adhesive, but large or repeated bubbling usually indicates a preparation or installation issue.

Question 15

Why are my wallpaper seams showing?

Accepted Answer

Wallpaper seams may show because the strips were not aligned properly, the wall was not primed, the wallpaper shrank after installation, too much paste was wiped from the edges, the edges dried too quickly, or the wallpaper was overworked with a seam roller. Seams can also appear more visible with dark wallpapers, metallic finishes, grasscloth, and textured wallcoverings. To reduce visible seams, use the correct adhesive, avoid stretching the wallpaper, keep edges properly pasted, and install under good lighting. Some natural wallcoverings, especially grasscloth, are designed to show subtle paneling and shading; this is part of their natural character rather than a defect.

Question 16

Can wallpaper be installed in a bathroom?

Accepted Answer

Wallpaper can be installed in many bathrooms, especially powder rooms and well-ventilated bathrooms. The best results come from proper wall preparation, good ventilation, and choosing a wallpaper suitable for the room conditions. Vinyl, washable, and some non-woven wallpapers may be better choices for moisture-prone spaces than delicate papers or natural fibers. Avoid installing wallpaper directly inside showers, on constantly wet walls, or in bathrooms with poor ventilation. For full bathrooms, confirm that the wallpaper and adhesive are appropriate for humidity before installation.

Question 17

Can wallpaper be installed in a kitchen?

Accepted Answer

Yes, wallpaper can be installed in kitchens, especially in breakfast areas, dining nooks, pantry walls, open shelving areas, and spaces away from direct water or grease. For busy kitchens, choose durable, washable, or vinyl wallpaper when appropriate. Behind a sink or range, wallpaper may need additional protection, such as a glass panel or washable surface treatment. Kitchen wallpaper works best when the design complements cabinetry, counters, backsplash, hardware, and flooring. Always consider cleanability before choosing delicate wallpaper for high-use areas.

Question 18

Is grasscloth wallpaper installed the same way as regular wallpaper?

Accepted Answer

Grasscloth wallpaper requires special care and is usually best installed by an experienced professional. Because it is made from natural fibers, it can have color variation, paneling, shading, and texture differences from strip to strip. These variations are part of the beauty of grasscloth. Grasscloth is often more delicate than standard wallpaper and can stain if adhesive gets on the face of the material. It also requires careful handling, proper adhesive, clean hands, and precise planning. It is not typically recommended for wet areas or rooms where heavy cleaning is required.

Question 19

How long does wallpaper take to dry after installation?

Accepted Answer

Wallpaper drying time depends on the material, adhesive, wall surface, room temperature, humidity, and ventilation. Many wallpapers need at least 24 hours to begin drying properly, while some installations may take longer. During drying, avoid excessive heat, strong drafts, and high humidity because these conditions can affect adhesion and seams. Do not judge the final appearance too early. Some bubbles, moisture marks, or slight unevenness may settle as the wallpaper dries.

Question 20

Can I install wallpaper myself, or should I hire a professional?

Accepted Answer

You can install some wallpaper yourself if the wall is simple, the wallpaper is forgiving, and you are patient with measuring, cutting, alignment, and smoothing. Peel-and-stick wallpaper, small accent walls, and random-match textures may be more beginner-friendly. You should strongly consider hiring a professional for expensive wallpaper, grasscloth, silk, metallics, murals, staircases, high ceilings, powder rooms with many cuts, large pattern repeats, dark colors, and complex architectural spaces. Professional installation protects your investment and usually produces a cleaner, longer-lasting result.

Question 21

What are the most common wallpaper installation mistakes?

Accepted Answer

The most common wallpaper installation mistakes include skipping primer, ordering too little wallpaper, ignoring the pattern repeat, starting without a plumb line, using the wrong adhesive, cutting with dull blades, overworking seams, installing over texture, rushing corners, and failing to read the manufacturer's instructions. Most wallpaper problems begin before the first strip is hung. Careful preparation, correct materials, and accurate measuring are the keys to a professional finish.

Question 22

How do I clean wallpaper after installation?

Accepted Answer

Wallpaper cleaning depends on the material. Some wallpapers are washable or scrubbable, while others should only be lightly dusted with a dry cloth. Vinyl wallpaper is generally easier to clean than delicate paper, grasscloth, silk, or hand-printed wallcoverings. Before cleaning, always check the manufacturer's care instructions. Never use harsh chemicals, abrasive pads, or excessive water unless the wallpaper is specifically rated for that type of cleaning.

Question 23

Can wallpaper be removed later?

Accepted Answer

Many modern wallpapers can be removed later, especially if the wall was properly primed before installation. Non-woven wallpapers are often designed for easier removal than older traditional papers, but removal depends on the product, adhesive, wall condition, and installation method. Proper priming before installation is the best way to protect the wall and make future removal easier. Wallpaper installed directly onto unprimed drywall can be much harder to remove and may damage the wall surface.

Question 24

What should I do if my wallpaper edges are lifting?

Accepted Answer

If wallpaper edges are lifting, the cause may be insufficient adhesive, dry seams, dust, poor wall preparation, humidity, or too much paste removed during cleanup. Small lifting areas can often be repaired with a suitable seam adhesive and gentle pressure. If many seams or edges are lifting, the issue may be related to surface preparation, humidity, or the wrong adhesive. In that case, consult a professional before attempting widespread repairs.

Question 25

How can I get the best wallpaper installation result?

Accepted Answer

To get the best wallpaper installation result, choose the right wallpaper for the room, order enough material, prepare the walls properly, use the correct adhesive, follow the manufacturer's instructions, match the pattern carefully, and take your time. A professional-looking wallpaper installation depends on patience and precision. If you are using luxury wallpaper, natural wallcovering, large-scale mural, metallic finish, grasscloth, or designer wallpaper, professional installation is usually the safest choice. The right installer can protect the material, manage pattern placement, and create a finish that looks intentional, clean, and beautifully detailed.

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