AMPRO Roofing & Construction | Roofing Services in Alhambra, CA 91803

A full reroof is the most effective solution for roof deck rot. We start by completely stripping the old roof down to the decking. This allows us to inspect every square foot of the wood deck for soft spots, water damage, and rot—problems that are common here. We then replace all compromised decking with new, sturdy plywood before installing the new roofing system. This ensures your new roof has a solid, rot-free foundation, which is critical for its longevity and your home's protection.

Roof valleys are where two roof planes meet, creating a channel for heavy water runoff—something we see often in Alhambra. Over time, standard flashing can fail. During our reroofing process, we pay special attention to valleys. We remove old, compromised materials and install new, high-quality valley flashing, often using metals like aluminum or copper for superior durability. We then integrate the new shingles with a woven or closed-cut valley technique, creating a watertight seal that directs water safely off your roof, preventing future valley leaks.

It's a common question! If you're experiencing leaks, especially in valleys or noticing sagging that suggests deck rot, a repair might only be a temporary fix. We recommend a professional inspection. If leaks are widespread, your shingles are aging (over 20 years), or we find significant deck damage during our assessment, a full reroof is likely the more reliable and cost-effective long-term investment. It solves the root cause of Alhambra's common roofing issues, giving you peace of mind for decades.