How to fix a cracked basement wall from the inside? You can fix a cracked basement wall quickly and effectively using a basement wall repair kit.
How to fix a cracked basement wall from the inside
You do not need to spend the whole day fixing a cracked basement wall. Most cracks in the basement are small and minor and can be fixed pretty quickly.
Your basement walls ensure your basement and your home are structurally sound. However, freezing and thawing and other forces of nature can cause cracks in the walls. And most cracks eventually leak at some point.
While some cracks will require professional assessment and attention, most basement wall cracks are minor and can be fixed quickly through the low-pressure injection of epoxies or polyurethane foams.
How exactly to fix your cracked basement wall
Before you fix your cracked basement wall, you need to ask yourself if the crack is major or minor.
A major crack is one that is very prominent, horizontal, or runs in line with another crack on your basement floor. If you have a major crack on your basement wall, you should not bother fixing it as it will quickly reappear.
A major crack requires professional evaluation and assessment and possible professional reconstruction.
A minor crack, on the other hand, is one that you can fix. The easiest way to fix your cracked basement wall is to get a basement wall repair kit. The kit will have everything you need to repair your basement wall including the tools, the materials, and the instructions.
Most such kits rely on the injection of epoxy or similar material into the crack. The injection will make sure the crack is filled and the epoxy will seal the crack permanently. A quality epoxy injection wall repair can last up to five years.
Basement wall repair using a crack injection kit
Below are the basic steps you should expect to follow when you purchase a basement wall repair kit.
Step 1 – Installation of injection ports
You will need to install ports through which you will inject an epoxy or a similar material. Most kits come with short plastic tubes with a flat base that you can easily insert into cracks and through which you can get epoxy or similar material into the cracks.
These plastic tubes remove the need to drill cracks. They also reduce labor time and the need for extensive cleanup.
The plastic tubes are also known as surface ports and they are usually stuck to cracks using epoxy paste.
You are supposed to install several of them in a crack to make epoxy injection easier.
Step 2 – Sealing of the surface
After the installation of the injection ports, it is time to seal the surface. The exact instructions vary from manual to manual but generally most kits come with an epoxy paste that you are supposed to use to seal exposed cracks. The paste often takes about 40 minutes to cure and it will stay in place even when you later inject epoxy into the crack through the installed ports. The whole crack is sealed with the epoxy paste except the installed ports.
Step 3 – Injection into the crack
It is after sealing the crack that the injection process begins. You are supposed to begin injecting epoxy into the crack through the ports. Start from the lowest port you installed and inject the adhesive until it starts to ooze out of the port above it. This shows that the crack is filled to the upper port level. Seal the port and start injecting the port above it. Repeat this process until you fill the crack all the way up with epoxy.
Step 4 – Remove the injection ports
After sealing the injection ports, you should wait for 48 hours for the epoxy to deeply penetrate the crack and cure. After 48 hours, the epoxy will have cured (hardened) and at this point you are supposed to remove the injection ports. You can do this by striking them using a hammer or a trowel. If the marks left on your basement wall are unsightly, you can apply an epoxy surface seal and then smoothen the surface by sanding once the seal is cured (hardened).
What you need to know about basement crack repair
You need to know that the three most common causes of cracks in basement walls are – shrinkage, settling, and movement. Shrinking often happens just after a house is constructed. When the concrete foundation of the house dries a bit too fast, it will shrink and this will lead to the appearance of tiny cracks.
Settling often happens quite sometime after a house is constructed. It happens when a home’s foundation is put on a ground that has not fully compressed. Therefore, the foundation often compresses with the ground as it does result in cracks that are often minor in nature.
Movement is also a major cause of basement cracks. Movement causes cracks when the ground around a house’s foundation moves. This often causes small cracks but they can become bigger and affect a house structurally if movement does not stop.
2. Crack repair methods depend on the type of foundation or basement. Cracks in concrete foundations are injected because they are solid and monolithic, while cracks in stone, brick, or block walls are not injected because they are made up of many small pieces. Normally, cracks in foundations made of many pieces are best repaired from the outside utilizing a flexible elastomeric membrane.
How to Repair a Cracked Basement Wall From the Inside – FAQ
Can a basement wall leaking crack be fixed from the inside?
Because it is the most popular type of foundation since the late 1970s and because it is cost-effective, leaks in poured concrete foundations can be repaired from the inside with pressurized crack injection. It can also be done at any hour of the year.
Is it possible to repair a foundation crack from within?
A professional basement waterproofing company should do foundation crack repair – there are no buts, buts, or ifs. Cracks can either be sealed from the exterior or interior of the foundation. Both methods are equally effective if done correctly.
Can I seal my basement from within?
It is possible to waterproof your basement. First, determine the source of moisture. If you notice moisture on the foil’s surface after a while, it is likely that your basement has high humidity and is collecting water through condensation.
How do you fix a crack in your internal wall?
Re-taping the crack in drywall is the best way to fix it. You will need to remove any loose tape or crumbled drywall mud from the joint, then sand the surface and fill the crack with drywall compound before applying new tape.
Is Flex Seal effective for a leaky basement?
Flex Shot and Flex Seal Liquid can be used to fix a basement wall leak. Flex Seal Liquid can be poured into larger cracks. Then you can use a brush or roller for larger areas. You should apply multiple coats to cover as much area as possible. Allow 24 hours for each coat of paint to dry before you can get the best results.
How can I fix my foundation crack myself?
Spray water into the crack to dampen it. Then, use a putty blade to push the hydraulic cement mix into the crack using a spraybot. Allow this to dry for at least an hour before adding another layer of cement to the crack. You can smoothen the cement patch by using a trowel.
Is it normal that basement walls crack?
It is common to notice cracks in basements. These cracks can be irritating for homeowners but are not uncommon. Cracks can be caused by stress points. They can also occur when you are installing sewer, gas, and electric lines.
What can be used to fill cracks on the basement floor?
Apply a concrete patch over the crack to ensure there are no spaces or uneven areas. Use a putty knife to smoothen the patch. If the crack needs a second patch then wait for that first layer to dry. Let the concrete patch dry for several hours before sealing it.
Drylok is good for basement walls
PAINT YOUR WALLS WITH Drylok, waterproofing paint, BUT DO NOT PAINT. Insulation should not be attached directly to foundation walls. It acts as a moisture trap and can conceal structural problems or cracks in your foundation.
How do you cover basement concrete walls
Attach wood furring strips to flat, dry masonry walls. Next, add insulation to the strips or studs and cover them with drywall. These treatments give basement walls a smooth and even surface that can be used for paint, wallpaper, or paneling.
How do I permanently fix my cracked walls?
You can use a utility knife or a slicing saw to make a V-notch about 1/4 inch along the crack’s length. Vacuum all loose material. You can cover the crack with mesh joint tape, joint compound or paper tape. Then, apply a thin layer joint compound that extends about 2 inches along each side. Let dry.
What is the best wall filler for you?
1) Ronseal Smooth finish Filler
Ronseal smooth-finish filler is the best on the marketplace. Because it is flexible, fine, and ready-mixed to minimize waste, it makes a great filler for interior walls or ceilings. Ronseal filler brands can be used on a variety of surfaces including plaster, stone, wood.
Is Liquid Rubber more effective than Drylok
The liquid rubber coating is easy to paint onto basement surfaces. It is perfect for waterproofing homes that are frequently exposed. Drylok can be applied to basement walls in the same way as paint would be applied to walls of a house.
Flexseal works on concrete?
Flex Seal is a liquid rubber sealing coating that can be used for any DIY project, inside or out. Flex Seal can work on virtually any surface: wood, tile, concrete and masonry. It can also be used on fabric, glass plastic, aluminum and porcelain.
How can you reseal basement walls without damaging them?
DO use masonry waterproofing products on basement walls. If the foil test shows that water is getting through basement walls and leaving them damp, you should seal the walls with a high quality waterproof paint such as DRYLOK Extreme Waterproofer (available at Home Depot).
Is foundation repair worth the effort?
Foundation repairs can be quite costly. Foundation repairs are usually not covered by your home insurance so it can be difficult for homeowners to decide if it’s worth the investment. The answer to this question depends on what your end goals are, but the majority of foundation repairs are worthwhile.
Basement cracks: When should I be concerned?
“Major” cracks are anything more than ¾ wide with a leaning foundation. These cracks could indicate a more serious structural problem. Consult a professional foundation specialist, or a structural engineering engineer if cracks get so severe.
What is the cost of fixing foundation cracks?
Foundation repairs will cost homeowners $4,638 on average. Major foundation repairs can run to $10,000, while minor cracks can be repaired for as little as $500. The average homeowner spends between $2,138 to $7,426. Cracking and foundation settlement can cause major structural problems in your home.
Are there basement cracks that are dangerous?
The most dangerous foundation crack is the stair-step crack. They are usually found in a diagonal pattern and can be used to attack brick foundations or concrete blocks. Cracks can begin in joints or at the ends of walls and then taper down or climb upwards. They are caused by differential settlement, just like all diagonal cracks.
What’s the best way to finish basement walls?
You can use paneling to finish your basement walls and ceilings at a very affordable price. Apply a strong adhesive to place wood strips on concrete basement walls. Then attach the paneling using wood screws that match the color of your paneling.
Drylok is it possible for mold to grow?
Drylok is effective in preventing the growth of mold and mildew. It prevents water from entering foundation walls. The product is an ‘inert coating’, which prevents the growth or development of mold and mildew.
What is the best way to cover concrete walls with?
To cover cinderblock walls, the easiest way is to use surface bonding cement to make a concrete finish. Concrete can be used to seal the building and keep it from getting wet. You can leave it as is, or you can paint.
Can Flex Seal be used indoors with no restrictions?
Because of the solvent odor, Flexible Seal is not recommended to be used indoors. Flexible Seal, a solvent-based product that cures through solvent evaporation, is not recommended for indoor use.
Flex Seal is better than caulk?
Flex Seal is easier to use than silicone caulking. It can be messy to apply silicone caulk. The caulking gun may have difficulty getting in the right spot for the application. Flex Seal can be used to stop water leaks once it has dried.
What causes cracks in concrete walls
Shrinkage is the main reason for cracking. Concrete shrinks when it dries and hardens. Excessive mixing water evaporates, causing concrete to shrink. Shrinkage is greater for concrete mixes that are more soupy.
What is the difference in caulk and filler
Caulk refers to making water or air-tight through filling or sealing. Flexible filler is used to conceal cracks and small gaps that may still have movement or may grow over time.
Is caulk safe to use on cracks in the wall?
If cracks develop between the ceiling and the wall, caulk will be applied. Caulk is flexible, and can withstand some settlement. After you have fixed the crack, sand and prime the wall. Then, stand ready for the next season and the next round drywall cracks.