Common Exterior Problems — What They Mean & How to Fix Them
Noticed something off with your home's exterior but not sure what it is or how serious it is? You're in the right place. Below are the most common exterior problems we see across Durham Region homes — what causes them, why they matter, and what to do about each. Click any problem to learn more.
Choose the problem you are seeing
Each guide explains what is likely causing the issue, when it matters, what you can safely check yourself, and when professional exterior cleaning can help.
Why is my eavestrough overflowing?
Eavestrough overflowing in the rain? Here's what causes it, why it's a problem, and how to fix it. Eavestrough cleaning across Whitby, Oshawa, Ajax & Durham Region.
Learn what it meansWhat are the black streaks on my roof?
Dark streaks on your roof shingles? It's algae — here's what it is, why it damages your roof, and how to remove it safely. Roof soft washing in Durham Region.
Learn what it meansWhat's the green or black stuff on my siding?
Green, black, or grimy buildup on your siding? It's organic growth — here's what it is and how to safely remove it. House soft washing across Durham Region.
Learn what it meansWhy is my driveway slippery and green?
Green, slippery driveway or walkway? It's algae and moss — a slip hazard that's easy to remove. Concrete & pressure washing across Durham Region.
Learn what it meansWhy is my deck grey and slippery?
Deck turning grey, green, or slippery? Here's what's happening to the wood and how to safely restore it. Deck & fence cleaning across Durham Region.
Learn what it meansWhat are the white spots on my windows?
Cloudy white spots on your windows that won't wipe off? It's hard water mineral buildup — here's how to remove it. Window cleaning in Durham Region.
Learn what it meansSend DSS a photo and we will tell you what is going on.
No obligation — just a practical recommendation for your home or property in Durham Region.