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Borescope Cameras: How Pros Look Inside Walls for Damage

Last updated October 25, 2026

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The short answer

What Is a Borescope Camera

A borescope camera is a long, flexible tube with a light and lens on the end. It slides through a small drilled hole, about a quarter inch wide, to show what is behind a wall, floor, or ceiling. The image appears on a screen, so you can see inside without cutting open the wall.

The tool is also called an inspection camera or endoscope. Plumbers and electricians use similar devices to check pipes and wiring. For water damage, it lets you look for leaks, rot, or mold in places you cannot see. This saves time and avoids unnecessary damage to your home.

How Pros Use Borescopes for Water Damage

When water damage is suspected, a pro may drill a small hole in the drywall and insert the borescope. The camera can be angled to look up, down, and sideways. It reveals water stains, dripping pipes, or damp insulation. The pro can also check behind baseboards, around windows, and under bathtubs.

The camera helps find the source of a leak, like a cracked pipe or a failed seal. It also shows how far the water has spread. This information guides the repair plan. You might see the images on the screen, so you understand what is happening behind your walls.

Check for hidden leaks behind showers and tubs.

Inspect around windows and door frames for moisture.

Look for mold growth inside wall cavities.

Trace the path of water from a roof leak.

Verify that drying equipment has reached all wet areas.

Document damage for your insurance file.

When You Might Need a Borescope

You might need a borescope if you smell musty odors, see a new stain on the ceiling, or notice a soft spot in the floor. These signs can mean water is trapped inside a wall. A borescope can confirm the problem without tearing out large sections of drywall.

If you live in Mesquite, the humid subtropical climate with hot summers and spring hail and thunderstorms can stress roofs and windows. A quick inspection after a storm can reveal leaks early. You can buy a small borescope for under $100, but a pro's camera has better resolution and flexibility.

Musty smell that gets stronger near a wall.

New water stain that keeps growing.

Warped baseboard or peeling paint.

Higher water bill with no obvious leak.

Recent storm with heavy rain or hail.

Limitations of Borescope Inspections

A borescope shows only what is directly in front of the lens. It cannot see through thick insulation or around corners easily. Sometimes the camera misses a leak that is further away. For a full picture, the pro may drill several holes or combine the borescope with a moisture meter.

The tool is not a replacement for opening the wall when damage is severe. If the camera shows rot or mold, you need to remove the affected drywall to clean and dry properly. The borescope is a first step, not a final fix.

Limited field of view, like looking through a straw.

Cannot see behind metal studs or thick beams.

Insulation can block the view.

Small holes may need patching afterward.

Not a substitute for removing damaged material.

Hiring a Pro for a Borescope Inspection

A professional water damage inspection often starts with a visual check, then uses a borescope to confirm hidden issues. The pro can also use moisture meters and thermal cameras to find wet areas. You get a clear report of what is behind your walls and what repairs are needed. Policies vary, and your insurer decides what is covered.

The cost of a borescope inspection typically ranges from $150 to $500, depending on the size of your home and how many areas need checking. It depends on the complexity of the job and the equipment used. Before hiring, ask what the inspection includes and whether you can see the images.

Ask about the scope of the inspection.

Request to see the camera images.

Confirm what the report includes.

Check if they provide a written summary.

Inquire about follow-up recommendations.

Water damage does not wait

Every hour counts once water gets into floors and walls. One call starts the response.

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Frequently asked questions

Can I use a borescope myself to find water damage?

Yes, you can buy a borescope for under $100. It helps you look inside walls, but you need to drill a small hole and know what to look for. A pro has better equipment and experience to interpret what is seen.

Does a borescope damage my walls?

It requires a small hole, about the size of a nail head. The hole is easy to patch with spackle or a dab of paint. The benefit is avoiding large holes that come with exploratory cutting.

Will a borescope show mold inside the wall?

It can show visible mold growth if the lens is pointed at it. However, mold may hide behind insulation or in dark corners. A pro can use additional tools like moisture meters to detect conditions where mold grows.

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