Improve drainage and control runoff with commercial gutter installation that’s built to handle real volume. At Rivas Roofing, we design and install custom gutter systems for offices, retail, and industrial buildings, focusing on proper sizing, clean lines, and long-term performance that reliably keeps water where it belongs year after year.
Reduce Runoff Issues Around
Your Property
Gutter installation is the process of designing and attaching a complete drainage system that moves rainwater off your roof and safely away from your building. For commercial properties, that means selecting the right gutter size, profile, and material to handle higher roof loads and heavier runoff. Proper installation also includes downspouts, hangers, end caps, and slope calculations so water flows efficiently without pooling or overflowing.
Done right, gutter installation helps prevent water damage to roofing systems, fascia, siding, foundations, and walkways. It reduces erosion around the building and minimizes leaks caused by water backing up. On commercial buildings, gutters also need to align with design, drainage points, and local code requirements. A professionally installed system isn’t just about moving water: it’s about keeping your building dry, functional, and easier to maintain over time.
Signs Indicating You May Need Gutter Installation:
- Water spilling over the roof edges during rainstorms
- Pooling water near the foundation or walkways
- Missing, undersized, or poorly placed downspouts
- Staining or rot along fascia boards and roof edges
- Soil erosion or washout around the building perimeter
- Interior leaks tied to the roofline or exterior walls
- Flat or low-slope roofs draining without control
- Temporary drainage solutions that no longer work
How We Handle Commercial Gutter Installation
Every commercial building handles water differently, so we don’t believe in one-size-fits-all systems. Our approach starts with understanding how your roof sheds water, where problems are occurring now, and what the building needs in the long term. From there, we design and install a gutter system that actually works with your roof.
Evaluate Roof Drainage and Runoff Patterns
We begin with an on-site inspection to assess roof size, slope, drainage points, and problem areas. We track how water flows off flat or low-slope sections, identify scuppers or drains, and measure linear footage for proper gutter sizing. This helps us determine whether standard K-style, box gutters, or oversized commercial profiles are needed to manage real runoff volume.
Design the System and Select Materials
Next, we design a gutter layout that matches your building use. We calculate proper pitch to ensure consistent flow toward downspouts, determine spacing for hidden or exposed hangers, and select materials like aluminum, galvanized steel, or coated metal. We also plan downspout locations to direct water away from entrances, loading zones, and foot traffic areas.
Install Gutters With the Correct Pitch and Support
Installation is all about precision. We secure gutters using commercial-grade hangers anchored into solid fascia or structural framing, not just trim. Every run is set with the right slope to prevent standing water. Seams are sealed, end caps are reinforced, and expansion joints are added where needed to handle temperature movement without leaks or separation.
Final Testing and Walkthrough
Once installation is complete, we test the system to confirm proper flow and drainage. We check for leaks, verify that downspouts are discharging correctly, and ensure nothing interferes with roofing components or access points. Before we leave, we walk the site with you, explain how everything works, and answer questions so you know exactly what was installed and why.
Get Your Free Estimate Today!
Rivas Roofing is a family-owned company that’s been serving Altadena and surrounding areas for over 30 years, and we believe in always doing things the right way. We show up in person, walk your property, and evaluate your roof and drainage firsthand. Contact us today for a fast, free, no-obligation estimate with clear recommendations and no unnecessary upsells.
