Why do inspectors require photos before drywall?

Inspectors require photos before drywall installation to document critical building systems that will be permanently concealed once the walls are closed up. This creates a permanent record of electrical wiring, plumbing, HVAC, insulation, and structural elements that cannot be easily inspected later without destructive investigation.

The framing inspection is one of the most important stages in construction because it verifies that all concealed work meets the Ontario Building Code before it's covered. Once drywall goes up, inspectors can't see if electrical boxes are properly secured, if plumbing is correctly supported, or if insulation is installed without gaps. Photos serve as documentation that the work was completed to code standards at the time of inspection.

In Toronto and across the GTA, this practice has become increasingly important for liability protection for both contractors and homeowners. If issues arise later - say, during a renovation or after a problem develops - these photos provide evidence of how the work was originally completed. Insurance companies and future contractors rely on this documentation to understand what's behind the walls without costly exploratory work.

Electrical work is particularly critical since the Electrical Safety Authority (ESA) requires inspection of all wiring before it's concealed. Photos document proper wire routing, box installation, grounding, and junction locations. Similarly, plumbing rough-in photos show pipe support, slope for drainage, and proper connections that could affect the home's functionality for decades.

For HVAC systems, photos capture ductwork installation, proper insulation of ducts, and return air pathways. In Toronto's climate, improper duct installation can lead to significant energy loss and comfort issues. The Technical Standards and Safety Authority (TSSA) may also require documentation for gas line installations.

Modern building practices increasingly rely on this photographic record-keeping. Many contractors now take comprehensive photos as standard practice, not just for inspectors but for their own quality control and warranty purposes. These images become part of the permanent building record, valuable for future renovations, maintenance, or troubleshooting.

Professional contractors understand this requirement and typically include systematic photo documentation in their workflow. They'll photograph each room from multiple angles, capture detail shots of connections and installations, and often provide copies to homeowners as part of project completion. This documentation protects everyone involved and ensures accountability throughout the construction process.

If you're working with contractors on a renovation or new construction project, ensure they understand the importance of this documentation phase - it's not just bureaucracy, but essential protection for your investment.