GAF Certified Roofing Contractor

Roofs done right, backed by GAF.

Built on GAF shingle systems, installed by Delta crews, warranted end-to-end. Free inspection, insurance-claim help, and a report back within 48 hours.

GAF Certified Contractor
System Plus 50-Yr Warranty

Proudly offering Timberline HDZ® Shingles

Explore the colors of Timberline HDZ® Shingles.

GAF Timberline HDZ Charcoal
Charcoal
GAF Timberline HDZ Pewter Gray
Pewter Gray
GAF Timberline HDZ Slate
Slate
GAF Timberline HDZ Barkwood
Barkwood
GAF Timberline HDZ Hickory
Hickory
GAF Timberline HDZ Mission Brown
Mission Brown
GAF Timberline HDZ Weathered Wood
Weathered Wood
GAF Timberline HDZ Shakewood
Shakewood
GAF Timberline HDZ Birchwood
Birchwood

GAF Certified Contractor · Delta Power Group. Colors shown are representative — availability varies by location; ask us to confirm what’s available in your area.

GAF Timberline HDZ

Built for the next storm.

Roofs done right — built on GAF shingle systems, installed by Delta crews, warranted end-to-end. We install GAF Timberline HDZ, America’s #1-selling architectural shingle.

  • LayerLock Technology + StrikeZone nailing — up to 99.9% nailing accuracy
  • StainGuard Plus — 25-year limited warranty against blue-green algae streaks
  • WindProven — a limited wind warranty with no maximum wind-speed limitation
  • System Plus Limited Warranty — 50-year non-prorated material coverage incl. tear-off, as a GAF Certified Contractor
Before
Roof before Delta install
After
Roof after Delta GAF install

In the field

Delta crews, on the roof.

A complete Delta Power Group roof transformation: before, deck repair, and the finished architectural shingle roof

Every roof is installed by Delta’s own crews — not subcontracted out.

Completed GAF architectural roof by Delta
Completed GAF roof
New GAF architectural shingle roof
New architectural roof

Know your roof

Every part, explained.

A roof is a system, not just shingles. Explore how a complete GAF roofing system fits together — from the deck and leak barriers to ridge cap and ventilation — so you know exactly what Delta installs.

Interactive diagram provided by GAF. Open the full tool on gaf.com →

Compare the lineup

Find the right GAF shingle.

GAF Timberline HDZ architectural shingle color options chart

A range of GAF architectural shingle colors — ask your Delta rep about current availability for your home.

Compare GAF’s architectural and designer shingle lines side by side — look, wind rating, and warranty coverage — then Delta helps you choose the right fit for your home and budget.

Comparison tool provided by GAF. Availability of specific shingle lines varies by region. On a phone, scroll within the chart to compare every line. Open the full tool on gaf.com →

GAF · Design tool

See it on your own house.

Upload a photo of your home and try GAF shingle colors and styles on your actual roof with the free GAF Virtual Home Remodeler — then bring your favorite look to your Delta estimate.

The Virtual Remodeler is a free tool from GAF and opens in a new tab. For the best preview, upload a straight-on photo of your home taken in daylight.

Simple from start to finish

Our process — and we handle the insurance paperwork.

STEP 1

Free inspection

Delta inspects your roof at no cost — no pressure, no obligation — and reports back within 48 hours.

STEP 2

Document the damage

Ohio hail and wind season is real. We document storm damage and work directly with your insurance carrier.

STEP 3

You approve everything

Pick your GAF shingle line and scope. Nothing moves forward until you sign off.

STEP 4

Installed & warranted

Delta crews install your GAF system — backed by manufacturer material warranties and our workmanship.

The GAF warranty

Coverage, in plain view.

As a GAF Certified Contractor, Delta can register enhanced GAF limited warranties — including the System Plus 50-year non-prorated material coverage. Explore what each warranty tier actually covers.

Warranty tiers, eligibility, and terms are set by GAF and subject to registration requirements. Delta Power Group is a GAF Certified Contractor and installs and registers the System Plus Limited Warranty; higher tiers shown in this tool (such as Golden Pledge) require GAF Master Elite status. Delta is not the warranty issuer — see the official GAF warranty documents for full terms. Open the full tool on gaf.com →

Financing

Flexible ways to pay for your new roof.

Promotional plans
GreenSky

  • Roofing & generators
  • Subject to credit approval
Fixed rate
PowerPay

  • Roofing & generators
  • Simple monthly terms
Home equity
Aven

  • Roof + whole-home upgrades
  • Home-equity-secured line

Rated by homeowners

4.7

232 Google reviews, four locations

4.7 out of 5 across 232 Google reviews at our Dayton, Dallas, Lansing and Memphis locations · BBB A Accredited

Credentials you can verify

Backed by the names that set the standard.

GAF Certified Contractor

A Accredited

Licensed in Ohio — OCILB #51186. Serving Ohio, Michigan, Texas, Illinois and Tennessee.

Free inspection · fast follow-up

Get your free roof inspection & quote.

GAF roofing systems installed by Delta’s own crews, backed by manufacturer and workmanship warranties. Storm or hail damage? We work directly with your insurance.

GAF roofing installer4.7★ · 232 Google reviewsBBB AOH · MI · TX · IL · TN

Roofing FAQ

Questions homeowners ask us.

Do you handle insurance claims?

Yes. For storm and hail damage we work directly with your insurance company and document everything the adjuster needs, so you’re not managing the claim alone.

What roofing materials do you install?

GAF architectural shingles and complete GAF roofing systems. A Delta pro reviews the best options for your home on-site.

Are your roofs backed by a warranty?

Yes. Delta installs GAF roofing systems backed by manufacturer material warranties plus Delta’s own workmanship warranty.

How long does a roof replacement take?

Most residential roof replacements are completed in one to two days, depending on the size of the roof and the weather.

Is financing available?

Yes — flexible financing through vetted lenders. Prequalifying uses a soft credit check that won’t affect your score.

GAF ROOFING · TIMBERLINE HDZ

Design your roof

GAF Certified Contractor · Delta Power Group

GAF Timberline HDZ shingles in Pewter GrayOn-home preview
Pewter GrayGAF Timberline HDZ

Your free roof inspection starts here.

Delta inspects, documents, and works with your insurance — you approve everything, and we report back within 48 hours.



Loved working with Delta?
Leave your local team a ★★★★★ Google review
Dayton, OHLansing, MIDallas, TXMemphis, TN
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