GAF factory-certified. A+ BBB accredited. 650+ projects across Maryland, Virginia & Pennsylvania.

United Developers is a trusted residential and commercial exterior contractor with nearly 20 years of combined experience delivering reliable, long-lasting results. We specialize in roofing, siding, gutters, windows and painting — proudly serving homeowners and businesses throughout Maryland, Virginia and Pennsylvania.
Our reputation is built on quality craftsmanship, honest service, and attention to detail — and on walking homeowners through storm-damage insurance claims from the first inspection to the final shingle.
If your roof doesn't need replacing, we'll tell you. We've talked homeowners out of jobs they didn't need — that's how we earn the ones they do.
We're a family business, not a storm-chasing crew that disappears after the check clears. Our name is on every roof, and we live and work in the same communities we serve.
From documentation to meeting your adjuster on the roof, we guide you through the insurance process so most homeowners pay only their deductible.
GAF factory-certified installation, manufacturer lifetime material warranties, and our own 2-year workmanship warranty on every job.
We document every slope with photos and give you a straight answer — usually within a day of your call.
If there's storm damage, we document the damage and meet your adjuster. If not, you get a clear retail or financed estimate — no pressure.
Most roofs are torn off and replaced in a single day. We protect your landscaping and leave the site cleaner than we found it.
You're covered by manufacturer and workmanship warranties — and we're a phone call away long after the job is done.
Roofing is a trade where anyone can print a business card. We're licensed and bonded in three states, factory-certified by the largest shingle manufacturer in North America, and accountable to the BBB. Look us up — we'll wait.
We serve you in English, Spanish, Hindi and Russian — with offices in Bethesda, MD and Alexandria, VA.

Free 24-hour inspection. Insurance claims guided. Most homeowners pay only their deductible.