Deck Repair Services

Signs That Your Deck Needs Repair

Some mildew or mold may be cosmetic, but if it grows quickly or is found in multiple places it’s a sign that work needs to be done. Rust on fasteners, connectors or screws is another sign that repair or replacement is needed.


Excessive rot or insect damage can be serious and indicate structural issues that might make the deck unsafe. Often, it’s more cost-effective and safer to replace the deck altogether. For professional help, contact Deck Builder Stafford VA.

Wood rot is a common problem with decks, especially when it comes to joists. Dry rot is caused by fungus that attacks the lumber, dissolving it from the inside. If left unchecked, rot can undermine the structural integrity of your deck and make it unsafe for walking or placing pressure on planks.

In general, rot is caused by water exposure, so the best way to avoid it is by keeping your deck well-maintained and using a preservative that helps to keep moisture out of the wood. You can also use a stain that is made specifically for decks, as this can provide additional protection by sealing the wood against moisture.

Look for signs of rot, which include discoloration and a soft or spongy feel to the wood. If you see any of these symptoms, it’s important to repair the issue as soon as possible, as rot can spread quickly.

One of the most common causes of rot in a deck is where the railing meets the posts, as dirt tends to hold moisture against the wood. This can lead to rotting and loosening of the railings, which can be easily fixed by detaching them, filling in the rot with epoxy putty, and reinstalling them for a long-lasting fix.

If the rot is in a deck board, the best solution is to replace it with a new one that has been treated for rot resistance. Some materials, such as cedar and many hardwoods, perform better against rot than others, like softwoods. If a joist has been affected by rot, it can be repaired by adding a sister board alongside the existing joist or replacing the entire joist with a new one.


No matter how sturdy your deck is, it’s going to be subjected to a lot of moisture, heat, and cold over time. These environmental factors can cause the wood to crack or split. However, this should not be a reason to panic as most small cracks can be easily fixed and do not impact the structural integrity of the deck.

Cracks are typically the result of expansion and contraction. Wet wood swells and expands while dry wood shrinks and contracts, which can eventually lead to cracking in the deck boards. To fix the issue, simply wash the cracked board and use a putty knife to fill the cracks with a latex wood filler that is specifically formulated for outdoor use.

If a board is completely rotted, it’ll need to be replaced entirely. To do this, pry up the board and check its underside for any signs of rot. If the underside looks healthy, flip the board upside down and reattach it with deck screws to the joists. If it’s beyond saving, consider turning to a Maryland decking company for assistance.

Discoloration isn’t a safety issue but it can definitely be unsightly. A good deck stain will help protect the wood from sun and moisture damage and can even make a stained board look brand new again. Staining is usually a job that best done in the fall or early spring, when temperatures are milder, humidity is lower and there’s no call for rain.

Slope creep can cause a heavy in-ground pool to shift and move, which in turn causes cracks in the concrete deck around it. To repair the problem, wash the concrete deck using a hose and scrub brush and tap on the surface to listen for any hollow sounds that indicate loose parts. A specialized cement sealing mix can be used to resolve these issues.


Mold and mildew are a major deterrent for those wanting to enjoy their deck, but they do more than just take away from the aesthetics of your deck. The fungi can actually cause structural damage to the wood over time.

Mold can be a problem for all types of decks, whether they’re made from natural materials or are composite. Fungus needs organic material to grow, and while you may not be able to prevent the moisture that feeds mold on your deck, you can reduce the amount of organic matter it has access to by using stain or sealant. If you do use a stain or sealant, it’s important to follow the manufacturer’s instructions regarding how often it should be reapplied.

The appearance of mold anywhere on, around, or under your deck is an indication that it’s time to take action. While you might be tempted to paint over mold, doing so is a bad idea for several reasons. First, the paint will not properly adhere to a contaminated surface. Second, the spores from the mold can continue to spread even after the mold has been painted over.

Significant mold or mildew exposure can also have negative health consequences for you, your family, and guests. The spores from these fungi can trigger allergies, asthma, and breathing problems for those with sensitivities to them. Black mold (Stachybotrys chartarum), a type of toxic mold, can be especially harmful to your health.

You can try to reduce the risk of having a mold or mildew issue by adding ventilation and fixing any drainage issues. A lot of mold problems arise from moisture buildup under the deck, and adding ventilation can help to eliminate this issue.


Algae can be a major problem for wood decks and is usually found in shady areas. If the algae is not removed from the surface of the deck, it can begin to penetrate the wood and cause rot and damage. The presence of algae can also make the deck very slippery, presenting a significant hazard to anyone walking across it.

A well-maintained deck is a key part of any outdoor space and should be cleaned regularly. The regular removal of green algae helps to protect the appearance of the deck and makes it a more enjoyable area for relaxing and entertaining.

There are a variety of products available to help prevent the growth of algae on your wooden deck. These include a number of commercial spray-on fungicides that are very effective at killing off algae and other molds. These products are non-caustic and are designed not to harm the health of plants or grass, making them an ideal choice for use on wood decks and other outdoor surfaces. Some of these products even come with a hose-end hookup that allows them to be sprayed evenly onto the surface.

Another way to prevent algae on your deck is to regularly sweep the deck and remove any debris that may contribute to the growth of the fungus. It is also a good idea to keep trees and shrubs away from the deck, as their leaves can provide a perfect habitat for algae to grow.

Finally, a small amount of baking soda can be mixed with water to create an effective home remedy for removing algae stains from the surface of the deck. This mixture is gentle on the wood and can be used as often as necessary without damaging the surface of the deck.


A wood deck can be a lovely addition to a home but it can also be an attraction for pests and other unwanted guests. These creatures don’t just annoy you with their presence but they can also cause damage and endanger the safety of your family, friends and pets with their biting or stinging activities.

Infestations of rodents, termites and carpenter ants can all cause severe damage to your deck. If you think you have a problem, it’s important to act quickly to eradicate the infestation and protect your investment.

The first signs of pests invading your deck varies depending on the species. For instance, if you notice gnawed-out boards or furniture, it’s likely that mice and rats are causing the damage. These creatures chew on everything to file down their front teeth which can create holes and damage the wood in your deck. Raccoons, possums and skunks are also known to attack decks and may carry diseases which can affect your family’s health.

You should also look for the telltale signs of insect infestation, such as piles of sawdust and discarded wings or hollow wood. Termites are another serious issue and you can check for their tunnels in the wood by looking at it closely. Signs include a grid pattern and pencil-sized tubes. Carpenter ants are red or black and bore into wood creating channels and nests, often leaving behind piles of sawdust and a squeak when the deck is knocked.

Fortunately, regular cleaning and inspection can help to prevent these common problems with your deck. If you do see signs of damage, it’s recommended that you contact a professional for immediate repairs and ongoing maintenance.