Houston gets 50+ inches of rain a year, often in violent bursts. The 5-inch gutters that came with most homes were sized for inland markets that get half that — and they overflow in every serious downpour.
Why overflow matters
Water that escapes the gutter runs down the fascia, soaks the soffits, and eventually rots out the leading edge of your decking. We see it constantly on 15+ year-old homes — the roof is fine, the fascia is gone.
6-inch is the new standard
A 6-inch K-style gutter holds roughly 40% more water than a 5-inch and handles our worst rainfall events without spilling. The cost premium is small at install, often huge over the life of the home.
Don't forget downspouts
Two 2x3 downspouts on a 40-foot run is undersized for Houston. Either upsize to 3x4 or add a third drop. Your gutters are only as good as the water they can shed fast.
Leaf guards: yes or no?
If you have oaks or pines overhead, micro-mesh leaf guards pay for themselves in maintenance saved. Avoid the cheap reverse-curve types — they clog with the live-oak pollen Houston is famous for.
Talk to a real Houston roofer
Adding gutters or replacing them with the roof? We bundle the work and save you a trip charge. Synergy Roof Systems serves Greater Houston with workmanship-backed roofing — schedule a free inspection on synergyrs.net/contact.