A1 Contractors 4U | Solar Installation & Roofing in Walnut, CA 91789

We see these problems frequently in our area. For lifted or damaged roof flashing, our thorough inspection identifies the root cause—often wind or improper installation—and we perform precise repairs to restore a watertight seal. For storm damage, we assess the full extent, work directly with your insurance, and provide durable repairs or replacements using materials suited to our local climate, ensuring long-term protection for your Walnut home.

Our process starts with a detailed, on-site roof inspection at your home. We examine the structure, shingles, flashing, and gutters for any signs of wear, damage, or leaks. If a repair is sufficient, we provide a clear quote. If a replacement is needed, we explain why and discuss material options that fit your budget and our local weather. Because we don't use salespeople, the recommendation is straightforward and focused on the necessary work, allowing us to offer a competitive price.

Our guarantee is simple. If you provide us with a written quote from another licensed contractor for the same scope of work, we will beat that price. If you haven't gotten another quote yet, we'll beat any comparable quote you receive within 30 days of ours. If, for any reason, we cannot beat it, we will pay you 5% of the competing quote as compensation for your time, up to a maximum of $500. It's our commitment to being the most value-driven choice for Walnut homeowners.