Client & Realtor Summary
The Issue: An improperly attached exterior pergola led to severe water intrusion, flashing failure, and wood rot along the home’s fascia, soffit, and structural connection points.
The Takeaway: DIY additions or unpermitted contractor work can compromise your home's envelope, allowing water to pool and rot out wood framing behind the scenes.
Service Package: Comprehensive Home Inspection
Outdoor living spaces like back patios, covered decks, and pergolas are huge selling points around Central Texas. But if the crew building that pergola didn't know their stuff, that weekend hangout spot can turn into a total structural headache.
During a recent home inspection out in Cedar Park, I ran into a textbook example of how a sloppy installation ends up hiding costly damage right behind the siding.
Home Inspection Video: What I Saw
If you take a look at the video, the patio cover looks totally fine at first glance. But once you get up close to where it connects—what builders call the "marriage" between the pergola and the house, you see the real story: nasty wood rot.
When you attach a heavy wood structure right against your home's exterior, you have to get the flashing, ledger board, and waterproofing right. If you don't:
Rainwater gets trapped behind the ledger board and fascia trim instead of shedding off like it should.
Moisture creeps into the soffit, slowly rotting out the framing and trim boards where you can't see it.
Support posts start degrading as water pools up at the base, eating away at the structure over time.
WhEn Home Improvements Bite Back
I see this all the time—homeowners taking the DIY approach or bringing in unvetted and rushed handymen for an upgrade. The problem is, these projects can skip the stuff that protects your home:
Skipping Metal Flashing: Without flashing to guide rain away, every storm dumps water straight into your fascia boards.
Bad Fastening: Just driving lag bolts through soffit or siding leaves open pathways for water to leak in during those heavy Texas downpours.
Hidden Rot & Bugs: Trapped moisture creates the perfect environment for wood-decay fungi and termites.
What looks like a great move-in-ready feature on a listing can easily end up costing thousands in teardowns, new framing, and siding repairs down the road.
Protect Your CLient
Having a thorough inspection helps you and your clients understand issues like this. It provides leverage for negotiations or at minimum, ensures home buyers know what they are getting into on the upfront.
