He came personally to explain the materials that he had to offer us and the one that best suited our needs. He answered each of our questions so we could decide which was the best option. The work was quite professional and incredibly fast.
About
We've been on Portland roofs since 2017.
Rodrigo spent years on other crews, taking photos of rotten wood. That habit became our inspection.
Why the attic
Why we go into the attic
For years, Rodrigo's job on someone else's crew was to photograph the rot before it got covered. He watched companies nail metal over soft wood. He watched a company sell 25 sheets of plywood when 10 were bad, and the homeowner had already paid for 25.
So when he started Black Diamond, the camera came with him. On every roof, he photographs the jack pipes, the vents, the measurements. Then he goes into the attic with a light and films what he finds. The photos go out with the estimate.
This year a Portland-area homeowner told him she'd paid for roof maintenance every year for years, and nobody had ever gone into her attic or told her what he'd just told her. That's the whole reason.
How we work
Eight rules we don't bend.
In Rodrigo's words.
Honesty first.
“I like to be honest with customers.” We explain the materials, the grades and the trade-offs so you're satisfied with what you paid for.
Educate, don't push.
“Sometimes they think all shoes are the same because they're all for walking. But some are more comfortable than others.”
Replace what's rotten.
We don't cover soft wood with metal. We take it out.
Charge for what we replace.
You pay for the sheets that were bad, not for a guess.
Sell the system, not the shingle.
“We're not going to put a roof on you. We're going to put a roofing system on you.”
Follow your goal, not the sale.
“Do you want this house long-term, or are you selling it?” We recommend for your answer, not ours.
Tell the truth about the warranty.
“Fifty years, yes, but it's prorated. The more years pass, the smaller your warranty gets.” We say that before you sign.
Communicate.
It's the thing customers care about most, and the thing we work hardest to get right.
Credentials
How to check us
Don't take our word for any of this. Look it up.
Oregon CCB #219931
Search the Oregon Construction Contractors Board. You'll see the license, the bond, and any complaints.
GAF Certified
Residential and commercial. GAF checks a contractor's license and insurance before it puts its name next to theirs.
CertainTeed SELECT ShingleMaster
CertainTeed's credential for shingle installers. Residential and commercial.
Commercial certification: GAF and Mule-Hide
You can't get certified for commercial work without installing a lot of squares first. Not just anyone qualifies. Most residential roofers in this market never do.
The crew
Red shirts, so you can count us from the street.
Red shirts and red caps, so you can see everyone on the roof from the street. Harnesses on the roof. That's a safety choice, not a fashion one.
People who trained on these crews now run their own roofing companies. Eleven of them, at last count. We're proud of that, and we still compete with them.
Red shirts so you can see everyone on the roof from the street. 
Material goes up by boom, not through your yard.
Recent roofs
Roofs we finished. Not stock photos.
Every house here is one of ours. Look at the ridge, the pipe boots and the valleys. Then look for the same things in anyone else's photos.
Tap any photo to see it full size.
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Photos are from our own jobs across the Portland metro.
What people say
Reviews
Norma Rocha2022 kevin dieter2021 The salesman was no pressure and I received quotes from several. They were more honest about what they could offer for my home. Others in their estimates were pushing for options that would not fit my home.
Cindy MeyerJune 2026 Black Diamond Roofing did a complete tear off and replacement of my shingle roof. I got bids from 8 companies and Black Diamond's bid was in the middle but the warranty they offer was exceptional. The project took 2.5 days. They did a fabulous job on the roof and left the property as clean as they found it. I would definitely recommend.
Kevin BiggersApril 2026 My experience with Black Diamond was fantastic. I went with them after getting a number of bids. The product they use and the addition of a ridgeline vent set them apart and they were also cheaper than some of the other quotes I got. The installation crew was fantastic and completed the entire project in 2 days, even after being down a guy on the first day. All in all,a great experience.
Eddie BrambilaFebruary 2026 I had a leak coming through a pipe flashing on a cold, windy, rainy night in January. I called Black Dimond Roofing at 7 PM, and Rodrigo had his team at my house by 8:30 PM. They quickly identified the issue and secured the area with a tarp that same night. After comparing their quote with three others, I found them very reasonable. Most importantly, Rodrigo showed up when I truly needed help. I highly recommend Black Dimond Roofing.
Jim DunsheeJune 2026 Great job, they more damage than expected and kept us updated on all the necessary repairs I would recommend Black Diamond to anyone who is wanting a quality roof
Cheri PapiniApril 2026 Blackb Diamond Roofing and their staff did an excellent job on meeting their deadline, quality of their work and clean up after completion.
Fernando Lopez2025 Black Diamond came out to give me an estimate on roof replacement, it's something I had been wanting/needing to do for a bit. They were able to work with me and my time lone to get it done. They were professional and very helpful. My roof looks great and I am glad I don't have to worry about that for the next 30 years.😅 Thanks BDR Team.
Michael Hseih2025 Had the free inspection appointment from a cold call since they were coming to the neighborhood to work on a neighbor's roof. Erick Cruz was the one that came. He was punctual and clear in communication on ETA ahead of the appointment, gave me an honest feedback on the status of my roof, and some tips on safety if I'd want to go on the roof myself. Overall had a pleasant experience with Erick and Blackdiamond roofing.
Verify us Oregon CCB #219931 — look us up.
Free Roof Inspection
See what's actually happening under your roof.
Schedule your Free Roof Inspection and you'll get the Attic-First Roof Report within 24 hours. Yours to keep either way.
Schedule My Free Roof Inspectionor call (541) 961-6524
You'll need to be home. The attic part doesn't work without you.