Roof Replacement & Repair
in Delaware.
GAF Certified roofing across New Castle & Kent County. Tear-off, repair, full replacement, and storm/insurance restoration. Most installs done in one day. Backed by GAF's 50-year System Plus warranty.
Roofing Spec Sheet
- Material
- GAF Timberline HDZ
- Warranty
- 50-yr System Plus
- Wind Rating
- 130 mph (HDZ Standard)
- Timeline
- 1 day · most homes
- Underlayment
- Synthetic + ice/water
- Cleanup
- Magnetic sweep
- Insurance
- Storm claims handled
GAF Timberline HDZ.
The Most Popular Architectural Shingle in America.
We install GAF as our default for one reason: it's the best balance of price, performance, and warranty in the asphalt-shingle market. As a GAF Certified Contractor, we're qualified to register the 50-year System Plus warranty on every full replacement.

Replacement
[ FULL TEAR-OFF ]Most homes done in one day. We tear off the old roof to the deck, repair any damaged sheathing, install ice-and-water shield at the eaves and valleys, lay synthetic underlayment across the field, then install GAF Timberline HDZ shingles, ridge vents, and step flashing.
- Full tear-off down to deck (no overlay)
- Decking repair as needed
- Ice-and-water shield at eaves & valleys
- Synthetic underlayment (no felt)
- GAF Timberline HDZ architectural shingles
- New ridge vents, step flashing, drip edge
- Magnetic sweep + full debris haul-off
- 50-year warranty registered at install

Repair
[ TARGETED FIX ]The right call when the roof has 5+ years left in it. Wind-blown shingles, lifted flashing, an isolated leak, a single bad valley — repair is faster, cheaper, and the right choice when replacement isn't yet warranted.
- Free on-site inspection
- Honest assessment: repair vs. replace
- Color-matched shingle replacement
- Flashing repair & sealing
- Pipe boot replacement
- Skylight reseal
- Ridge cap repair
- Most repairs done same day

Insurance Restoration
[ STORM CLAIMS ]Storm damage is one of our specialties. Wind events, hail, fallen trees — we document the damage, write the scope, meet your adjuster on the roof, and coordinate with your insurance company so your claim gets approved correctly the first time.
- Free post-storm roof inspection
- Photo & written documentation
- Insurance scope writing
- Adjuster meeting on-site
- Direct insurance billing available
- Supplement assistance if scope changes
- One point of contact start to finish

Free Inspection
[ ZERO COST ]Buying a home? Selling? Just want to know how much life is left in the roof? We do free on-site roof inspections across New Castle and Kent County. You'll get an honest written assessment — even if the answer is "it's fine, call us in 8 years."
+ ROOF
Roof Replacement Under Existing Solar Panels
Solar panel de-mount, new GAF Timberline HDZ roof, then clean re-mount on fresh flashing — coordinated with your licensed solar contractor (or our DE-licensed partner). Jim is your single point of contact. Solar portion adds $3k–$8k to a typical roof; total projects $15k–$28k. Most roofers won’t touch it. We built the service for it.
Real Pricing.
Honest Ranges. No Games.
Most contractors won't show pricing online — we will. These are real Delaware ranges. The actual number depends on size, pitch, layers to tear off, decking condition, and shingle line. The estimate Jim writes will be inside one of these ranges — not a $40k "today only" pitch.
Most Delaware single-family homes (1,500–2,500 sq ft, simple gable roofs) fall in this range. GAF Timberline HDZ, full tear-off, 50-yr warranty.
Larger homes (2,500–3,800 sq ft), multi-gable roofs, or upgraded shingle lines. Common in Middletown, Hockessin, Pike Creek subdivisions.
Greenville-tier estates with complex roof lines, designer shingles, copper flashing, slate or metal accents. Premium materials, longer install.
Size × material × add-on breakdown · What moves your specific number
5 Steps from Phone Call to New Roof.
Call or Form
Tell Jim about the roof. 5-min conversation.
Free Inspection
We walk the roof. Take photos. Write you one estimate.
Material & Color
Pick from GAF's HDZ lineup. We order direct.
One-Day Install
Tear-off, deck repair, shingles, vents, flashing.
Cleanup & Warranty
Magnetic sweep. Yard like we found it. 50-yr registered.
Roofing in Every Tier 1 Delaware City.
15 cities across New Castle and Kent County have dedicated location pages with local pricing, neighborhoods, and architecture notes.
Roofing Questions —
Answered Straight.
Most asphalt shingle roof replacements in Delaware fall between $10,000 and $20,000 for an average single-family home. Larger homes, steeper pitches, and premium architectural or designer shingles can push the total to $25,000 or higher. Diamond State gives one honest written estimate — no high-pressure quote, no fake discounts.
Repair makes sense for a localized issue — a few damaged shingles after a storm, a single bad flashing, a small leak. Replacement is the right call when the roof is approaching the end of its lifespan (20–25 years for asphalt), when there's widespread granule loss, or when multiple repairs would cost more than half a new roof. Jim will tell you straight which one your roof needs.
Yes. Storm and wind-damage insurance work is one of our specialties. We document the damage, write up the scope, meet your adjuster on the roof, and coordinate the work so your claim gets approved correctly the first time. Most homeowners have never filed a roof claim before — we walk you through it.
We're a GAF Certified Contractor and primarily install GAF Timberline HDZ asphalt shingles — the most popular architectural shingle in America. GAF Certified status lets us offer the 50-year System Plus warranty on full replacements. We also install GAF designer shingles, ridge vents, and impact-resistant options when the home calls for it.
Most single-family roof replacements in Delaware are completed in one day. Larger homes, complex roof lines, or homes that need rafter or decking repair can stretch to two days. Either way, we tear off, install, and clean up before we leave the site.
GAF's System Plus warranty (available because Diamond State is a GAF Certified Contractor) covers manufacturing defects on shingles for 50 years and our workmanship for 25 years. It's transferable once if you sell the home in the first 20 years. We register every roof at install.
Our core service area is New Castle and Kent County, Delaware. We've also done work in northern Sussex County and into Pennsylvania (Delaware and Montgomery counties) on a case-by-case basis. Call Jim — he'll tell you yes, no, or 'we can be there next week.'
Get One Honest Number on
Your Delaware Roof.
Free on-site inspection. No high-pressure pitch. Most estimates back the same week. Mention you saw the website — military and senior discounts apply.