5 Signs Your Home’s Siding Needs to Be Replaced
1. Widespread Cracking or Warping
- Cracks: Large cracks, or numerous small ones, are a sign your siding has become brittle and has failed. This is common in vinyl, which cracks after impacts or from cold NWA winters.
- Warping/Bowing: Are boards pulling away from the house? Do they look bowed or rippled? This means the siding is no longer secure and is allowing moisture to get behind it.
Once the protective surface is broken, water is free to seep in, and that’s when the real problems begin.
2. Bubbling, Blistering, or Soft Spots
This is one of the most serious warning signs. If you see spots on your siding that look like bubbles or blisters under the paint, it’s a red flag for trapped moisture.
Worse yet, if you gently press on a suspicious spot and it feels soft, spongy, or “bouncy,” you almost certainly have rot in the underlying wood sheathing. This is common with old wood siding but can happen with any material if water gets trapped. This isn’t a “wait and see” problem—it needs to be inspected immediately.
3. Signs of Fungus, Mold, or Mildew
While a little mildew on the shady side of your house might be normal, you should be concerned about persistent, widespread, or dark patches of fungus and mold. This is especially true if you see it growing at or near the seams where boards meet.
This indicates that your siding is holding moisture instead of shedding it. That moisture can seep into your wall cavity, damaging insulation and posing a potential health risk to your family.
4. Fading Color and Chronic Peeling Paint
Your siding’s finish is its first defense. When the color becomes dull and chalky, or the paint begins to peel and chip away, it means that protective layer is gone.
This is more than just a cosmetic issue. For wood siding, it’s a critical failure that leaves the wood exposed to moisture and rot. For fiber cement or vinyl, it’s a sign the material has reached the end of its service life. While you could repaint, it’s often an expensive, temporary fix for a much larger problem.
5. Your Energy Bills Are Creeping Up
Are your heating and cooling bills getting higher every year, even though your HVAC system is working fine? Your siding and wall insulation could be the culprit.
Old, failing siding with cracked seams and warped boards creates countless tiny gaps for air to travel. This “air infiltration” makes your home drafty and forces your furnace and AC to work overtime. A new, professionally installed siding system—especially when paired with a modern house wrap—creates a much tighter, more energy-efficient thermal envelope for your home.
Don't Wait for a Small Problem to Become a Big One
With 30 years of experience, we know the difference between a simple repair and a full replacement. If you see any of these signs, the worst thing you can do is wait.
Step 6: Fitting and Securing the Siding Panels
Working from bottom to top, panels are cut to size, fitted, and nailed or screwed in place. For fiber cement, we use specialized tools to minimize dust. Overlaps ensure water resistance—expect some noise from saws and hammers.
FAQ
Can I just repair a few bad spots, or do I need to replace all my siding?
This is one of the most common questions we get. The answer depends on the problem. If you have localized damage from a single event (like a baseball hit), a small repair is often possible. However, if you’re seeing widespread issues like cracking, warping, or soft spots, these are signs of system-wide failure. In that case, a full replacement is the only long-term solution to protect your home.
I see some mold/mildew. Can I just power wash it off?
You can, but it’s often a temporary fix for a deeper problem. Power washing may clean the surface, but it doesn’t solve why the mold is growing. If your siding is holding moisture, the mold will just come right back. We recommend an inspection to see if water is getting trapped behind the siding.
My siding is just faded, but it's not cracked. Can I just paint it?
You can paint some types of siding, like wood or fiber cement, but it’s a very labor-intensive and expensive job to do correctly. If your siding is old, painting is often a short-term cosmetic fix that doesn’t address underlying issues like poor insulation or brittleness.
I think I have soft spots under my siding. What's the repair process?
This is a serious issue, and we’re glad you asked. When we find soft spots, it means the wood sheathing under your siding has rotted. The first step is to remove the old siding in that area to see how extensive the damage is. We then cut out and replace all the rotted wood with new, solid sheathing before we can install the new siding. This is critical for ensuring the long-term structural integrity of your home.