★ Veteran-Owned ★ Free Estimates — Call (314) 623-5399

Protecting Your Home From the Top Down

Residential and commercial roofing specialists serving the St. Louis area — plus expert siding and gutter installation. Backed by our team's 30+ years of experience, built on discipline, integrity, and craftsmanship.

Danni James Exteriors fleet of wrapped work trucks with ladder racks
What We Do

Exterior Services Done Right

From the ridge of your roof to the end of your downspouts, we handle the systems that keep your home dry, efficient, and looking sharp.

Our Specialty 🏠

Roofing

Residential and commercial: full replacements, repairs, flat roof membrane systems, and storm damage restoration. As roofing specialists, we install systems built to stand up to Midwest weather — and we stand behind every shingle.

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Siding

CertainTeed vinyl and James Hardie fiber cement siding installation that boosts curb appeal, protects your home's structure, and improves energy efficiency. Compare your options →

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Gutters

Seamless gutter installation, replacement, and downspouts that move water away from your foundation where it belongs.

Materials We Trust

We Install GAF — North America's Largest Roofing Manufacturer

Your roof is only as good as what it's made of and who installs it. That's why we build with GAF Timberline HDZ® shingles, the best-selling shingle line in North America.

Learn About GAF's 139-Year History →
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LayerLock® Technology

Most asphalt shingles are simply glued in layers. Timberline HDZ shingles mechanically fasten their layers together, creating a stronger bond across your entire roof — and unlocking GAF's strongest wind protection.

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WindProven™ Wind Warranty

When we install the complete GAF system with its required accessories, your roof qualifies for the industry's first wind warranty with no maximum wind speed limit — serious peace of mind in Missouri storm country.

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Algae & Stain Protection

Time-release algae-fighting technology defends against the ugly blue-green streaks common on Midwest roofs, backed by a 25-year StainGuard Plus™ limited warranty.

Understanding Your Warranty

Every roof we install comes with two layers of protection, and we'll walk you through both before work begins:

  • Manufacturer warranty (GAF): Covers the shingles and roofing materials themselves against manufacturing defects — Timberline HDZ shingles carry a Lifetime limited warranty for the original homeowner. Installing the full GAF accessory system extends coverage even further, including the WindProven™ wind warranty.
  • Workmanship: We stand behind our installation. If something isn't right because of how it was installed, we make it right.
  • What warranties don't cover: No shingle warranty covers "acts of God" like tornadoes or extreme hail — that's what your homeowner's insurance is for, and we know that process inside and out (see below).
Siding Options

Siding For Every Home & Budget

We install two of the most trusted names in siding: CertainTeed vinyl and James Hardie fiber cement. Here's how to think about your options — and we'll walk you through them in person, no pressure.

CertainTeed Vinyl Siding — Good, Better, Best

All three CertainTeed lines carry lifetime fade protection and limited lifetime warranties. The main difference is panel thickness, which affects rigidity, appearance over time, and price:

Good

Encore®

CertainTeed's entry-level panel (.040" thick). A budget-friendly way to get a clean, low-maintenance exterior with plenty of color choices. Best for tighter budgets and rental properties.

Better

MainStreet™

The mid-grade workhorse (.042" thick) with multiple profiles and around 25 colors. A solid step up in stiffness and appearance without the premium price — the right fit for most St. Louis homes.

Best

Monogram®

CertainTeed's premium line (.046" thick) — the thickest, straightest-hanging panel with rich cedar texture and the widest color selection. Engineered for high wind resistance and the best long-term curb appeal.

James Hardie® Fiber Cement Siding

For homeowners who want the most durable siding made, we install James Hardie fiber cement. It's a cement-based board that delivers the look of wood with none of wood's weaknesses: it resists fire, moisture, rot, hail, and pests, and it won't warp in Missouri's temperature swings. Hardie products carry a 30-year non-prorated material warranty, and boards finished with ColorPlus® Technology — a baked-on factory finish — add a 15-year warranty on the finish itself, so you're not repainting every few years. It costs more than vinyl up front, but it's widely considered the best long-term value in siding, and some insurers even discount premiums for fiber cement homes. We'll give you side-by-side quotes so you can compare honestly.

Explore CertainTeed Vinyl Siding →
Storm Damage & Insurance Claims

An Insurance Insider on Your Side

Here's something no other roofer in St. Louis can say: our owner James Martin spent years as an independent insurance adjuster. We know exactly how claims are evaluated, what documentation adjusters need, and how to make sure storm damage to your roof, siding, or gutters is fully and fairly covered. After hail or wind hits, call us before you call anyone else — we'll inspect for free and tell you honestly whether you have a claim.

Schedule a Free Storm Inspection
Why Danni James

Service-Built Standards

30+ Years of ExperienceOur leadership team brings over three decades of combined construction, insurance, and logistics experience to your project.
Veteran-OwnedFounded on the discipline and accountability of military service.
Residential & CommercialFrom single-family homes to apartment complexes and flat roof systems.
Insurance Claim ExpertiseOur GM is a former independent insurance adjuster — your storm claim is in expert hands.
GAF Quality MaterialsWe install North America's #1-selling shingle with industry-leading warranty options.
A Leadership Team, Not a One-Man ShowDedicated owners running sales, operations, and logistics — your project never depends on one person's phone.
On The Job

Our Work In Action

Real photos from real Danni James job sites around the St. Louis area — from full tear-offs and decking rebuilds to finished roofs, flat roof systems, and exterior work.

Leadership

Meet the Owners

When you work with Danni James Exteriors, you're working directly with the people whose names are on the company.

JM

James Martin

CEO · Sales Manager

James brings a rare combination to roofing: years as an independent insurance adjuster, commercial construction project manager, business owner, and sales training manager. He's seen the industry from every angle — which means honest assessments, accurate estimates, and claims handled right.

(314) 546-7568 James@dannijames.com
GG

Gary Gremminger

CFO · General Manager

Gary brings many years of finance and wealth-building expertise, including his experience as the retired Vice President of a major Fortune 500 company. He provides the financial discipline and strategic oversight that keep Danni James Exteriors on solid footing and built to last.

Contact the team
SP

Shonda Piatt

COO · Director of Operations

Shonda keeps every project running on schedule and every customer in the loop. From your first call to final cleanup, she makes sure the Danni James standard is met on every job site.

(314) 623-5399 Shonda@dannijames.com
JB

Jeremy Baran

CMO · Managing Partner

A Colonel in the United States Army with years of experience in military logistics, Jeremy brings precision planning, supply discipline, and mission-first leadership to every project we take on. When he commits to a timeline, it holds.

Contact the team
Get Started

Request Your Free Estimate

Tell us about your project and we'll get back to you fast. Prefer to talk? Give us a call.

📞 Call (314) 623-5399

Phone
(314) 623-5399 — Shonda Piatt (main)
(314) 546-7568 — James Martin

Email
Shonda@dannijames.com
James@dannijames.com

Address
807 Allen Ave, St. Louis, MO 63104

Service Area
St. Louis & surrounding communities

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