Locally Owned in Ottawa, OH ● Serving Allen, Hancock & Putnam Counties ● Free Written Estimates

New Roofs In NW Ohio

A New Roof Done Right The First Time.

Locally-owned and Owens Corning Preferred — serving Allen, Hancock, and Putnam counties for more than a decade. Free inspection. Written estimate. Zero pressure.

  • ✓ Free On-Site Inspection
  • ✓ Detailed Written Estimate
  • ✓ Owens Corning Preferred
  • ✓ 10+ Years Experience

Let’s Get Started

Takes less than 60 seconds. We’ll reach out within one business day.

By submitting, you agree to be contacted by Black Diamond Roofing & Construction regarding your estimate. We never share your information.

Owens Corning

Preferred Contractor

10+ Years

Roofing Experience

Locally Owned

Based in Ottawa, OH

Written Estimates

No Pressure, No Obligation

Why Homeowners Choose Us

Built For Northwest Ohio Homes & Northwest Ohio Weather.

A roof is the biggest investment most homeowners make in their house. You deserve a contractor who shows up, explains the work clearly, and stands behind it long after the crew packs up.

01 / Local

Owned & Operated Here

Based in Ottawa, we live in the same weather you do. We’re not a storm-chasing crew passing through — we’re your neighbors, and our reputation is local.

02 / Certified

Owens Corning Preferred

Only a small percentage of roofers qualify as Owens Corning Preferred Contractors. It means we install to the manufacturer’s standards — and your warranty is backed by a company that’s been making shingles for 80+ years.

03 / Honest

Written Estimates, No Pressure

Every quote is in writing with line-item pricing. No high-pressure close, no “today-only” discounts, no surprise charges after the crew starts. You decide on your timeline.

04 / Thorough

Full-Roof Inspection

We don’t just eyeball from the driveway. We inspect decking, flashing, ventilation, and existing damage — then show you photos of what we find so you understand exactly what you’re paying for.

05 / Clean

Job-Site Discipline

Tarps over landscaping. Magnetic nail sweeps after each day. Debris hauled off — not left in your driveway. When we leave, the only difference should be a better roof.

06 / Backed

Real Workmanship Warranty

Manufacturer warranty on the materials, plus a written workmanship warranty from us. If something isn’t right, you have our number — and we actually answer it.

Recent Work

Roofs Built To Stand Up To Ohio Weather.

Straight lines. Clean transitions. Proper ventilation. Every roof we install should look as good from above as it does from the curb.

Completed architectural shingle roof installation in Putnam County, Ohio

Recent Install · Putnam County

%

Years In The Trade

Counties Served

%

Written Estimates

How It Works

Simple, Straightforward, No Surprises.

From the first call to the final nail sweep, here’s exactly what to expect.

01

Request Your Estimate

Fill out the form or call us. Takes under a minute. We respond within one business day to schedule.

02

On-Site Inspection

We come to your home, get on the roof, and inspect everything — decking, flashing, ventilation, shingles.

03

Written Proposal

You get a detailed, line-item estimate with photos. No pressure, no pushy sales tactics. Decide on your time.

04

Install & Clean-Up

Most roofs installed in 1–2 days. Clean site every evening. Magnetic sweep at the end. Warranty in your hand.

Service Area

Proudly Serving Northwest Ohio.

Based in Ottawa and covering the tri-county area. If you’re in one of these communities, we can be at your home this week for a free inspection.

Putnam CountyOttawa, Leipsic, Columbus Grove, Kalida
Allen CountyLima, Delphos, Elida, Bluffton
Hancock CountyFindlay, Arlington, McComb, Fostoria
Surrounding AreasAuglaize, Hardin & Van Wert counties

Prefer to talk it through?

Call us directly. You’ll reach a real person — usually the owner. No call centers, no scripts.

Questions

Common Questions From Homeowners.

How much does a new roof cost in Northwest Ohio?
It depends on the size of the roof, the pitch, the material you choose, and the condition of the underlying decking. Most asphalt shingle replacements on an average home in our area land in a predictable range, and our written estimate spells out every line item so there’s no mystery. Request a free estimate and we’ll give you a real number on your actual house — not a guess based on square footage.
How long does the inspection take?
Usually 30 to 45 minutes. We’ll walk the roof, check the decking and flashing, look at your ventilation and attic if accessible, and take photos of anything worth noting. You’ll get the written estimate within a day or two, often on the spot.
Do I need to be home for the estimate?
You don’t need to be — we can inspect the exterior and roof without you there. But most homeowners prefer to be home so we can walk through the findings and answer questions face-to-face.
How long does the actual roof installation take?
Most residential roofs in our area are completed in one to two days, depending on size, pitch, and weather. We clean the job site every evening and do a full magnetic nail sweep when we finish.
What kind of warranty do you offer?
Two layers. First, the manufacturer warranty on the shingles and materials — because we’re an Owens Corning Preferred Contractor, you qualify for their strongest warranty options. Second, our written workmanship warranty on the installation itself. We cover both and we’re local, so you always know who to call.
Do you handle insurance claims?
Yes — if you’ve had storm damage and are filing a claim, we can walk through the process with you and meet your adjuster on-site. We’ll document the damage thoroughly and make sure nothing gets missed.

Ready For A Roof You Don’t Have To Think About?

Free inspection. Written estimate. No pressure. Serving Allen, Hancock & Putnam counties.

— or —