A video chimney inspection uses a waterproof camera to see inside your flue without climbing on the roof, letting technicians spot cracks, blockages, and creosote buildup in minutes. It's the modern standard for assessing chimney health before you light a fire—and it gives you proof of what's actually happening inside. Here's what happens during the process and why it matters for your home.
Why Video Inspections Beat the Guesswork
Traditional chimney inspections relied on flashlights, mirrors, and the inspector's experience. Video inspections eliminate guesswork by recording everything the camera sees, so you get a digital record of your chimney's condition. You can watch the footage yourself, see exactly where problems exist, and understand what repairs are actually necessary—not just what someone tells you needs fixing.
Most professionals use high-resolution cameras mounted on flexible rods that bend through the twists and turns of your flue. The camera sends a live feed to a monitor or technician's tablet, and the footage is saved so you can reference it later or get a second opinion.
The Typical Video Inspection Process
Before the inspection (10-15 minutes): The technician will discuss your chimney history—when it was last cleaned, if you've had fires, any unusual smells or drafting issues. This context helps them know what to look for.
Setup (5 minutes): They'll position equipment at the chimney opening and protect your flooring and walls. Professional sweeps bring drop cloths and work deliberately to avoid soot tracking inside.
Camera insertion (15-25 minutes): The rod with camera feeds slowly up the flue, starting at the firebox and moving toward the chimney cap. The technician watches the monitor in real time, pausing at problem areas to document them.
Review (10-15 minutes): Most reputable companies will walk you through findings on the monitor, pointing out:
- Creosote accumulation (thin, thick, or glazed)
- Cracks or spalling in the flue liner
- Missing or damaged mortar joints
- Animal nests or debris blockages
- Damaged chimney cap or crown
- Water damage or staining
Documentation: You receive a written report with photos or video clips, along with recommendations and repair estimates if needed.
What Problems Show Up on Camera
Video inspections commonly reveal issues that need attention:
- Creosote buildup (requires cleaning if more than 1/8 inch thick)
- Flue liner cracks (serious—allows gases into walls and risks fire)
- Missing or deteriorated mortar (compromises structural integrity)
- Tilted or missing chimney cap (lets rain and animals in)
- Obstructions (bird nests, debris, collapsed sections)
- Efflorescence or staining (signs of water intrusion)
Any of these warrant a follow-up conversation with a certified chimney sweep about whether repairs or cleaning should happen before your next fireplace use.
Cost and Timeline Expectations
Video inspections typically cost $100–$300, depending on your region and chimney height. Some sweeps include a basic video inspection with cleaning services (usually $150–$400 for cleaning alone), while others charge separately if you want detailed documentation and a full report.
The inspection itself takes 45 minutes to 1.5 hours from arrival to finished report. If problems are found and you decide to move forward with repairs or cleaning, schedule those within 1–2 weeks, especially before winter.
Finding a Qualified Inspector
Look for sweeps certified by the Chimney Safety Institute of America (CSIA) or equivalent. Certified professionals understand what to look for and won't oversell unnecessary work. Check reviews on local platforms and ask whether they provide a written report with images or video—if they don't offer documentation, it's a red flag.
When comparing options, Mercoly makes it easy to find and evaluate trusted chimney sweeping providers in your area, compare service packages, and read verified customer feedback all in one place.
Red Flags to Avoid
Avoid technicians who:
- Won't let you watch the inspection or review footage
- Immediately recommend expensive repairs without showing evidence
- Don't have certifications or references
- Quote prices significantly higher or lower than local averages without explanation
A trustworthy inspector will take time to explain findings and let you decide on next steps.
Frequently Asked Questions
Q: Do I need a video inspection every year? A: Annual inspections are recommended by the NFPA, but a video inspection with detailed documentation can be done every 1–2 years if your chimney is in good condition and you use your fireplace regularly.
Q: Can a video camera fit in a small or offset flue? A: Most modern cameras fit flues as narrow as 6 inches, and the flexible rod navigates bends well, though very old offset chimneys may require adapted techniques.
Q: What happens if the inspection finds cracks in the flue liner? A: Cracks typically require relining (inserting a new liner) or in minor cases, sealing. Your technician will explain options and costs during the review.
Ready to schedule a video inspection? Start by comparing certified chimney sweeps near you and reading what other homeowners experienced.