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Keystone Siding & Windows is a James Hardie Elite Contractor, the highest tier of the James Hardie™ ALLIANCE. We install only genuine Hardie® fiber cement siding, trim and soffit for homeowners across Greater Atlanta and North Georgia, backed by James Hardie's 30-year siding warranty and our own Limited Lifetime Workmanship Warranty.
A James Hardie Elite Contractor is a siding installer that has reached the top tier of the James Hardie™ ALLIANCE, the manufacturer's network of independent contractors.
James Hardie places ALLIANCE members in three tiers: Select, Preferred and Elite. It describes Elite members as having the highest level of expertise and experience with Hardie® products, with an average James Hardie affiliation of over 10 years.
Keystone Siding & Windows holds Elite status. Our listing appears on James Hardie's own Contractor Locator, so you can check our James Hardie profile for yourself before you book.
Check our James Hardie Elite listing →Contractors who have consistently shown they can complete projects with Hardie® products, from experienced pros to installers with a newer James Hardie affiliation.
Contractors with a demonstrated track record of quality and years of close affiliation with James Hardie.
The highest level of expertise and experience with Hardie® products. Elite members have an average James Hardie affiliation of over 10 years.
Tier descriptions summarised from James Hardie's Find a Contractor and James Hardie™ ALLIANCE pages.
Hardie® siding is built to last for decades, but only if it goes on the wall correctly. Here is what Elite status gives you as a homeowner.
James Hardie publishes detailed installation instructions for fastening, clearances, flashing and joint spacing. Our crews follow them on every home, and the product warranty expects them to be followed.
ALLIANCE members have access to James Hardie's technical specialists and jobsite training, so our crews stay current on new products and installation best practice.
We don't install vinyl, wood or other fiber cement brands. Every siding project we take on uses genuine James Hardie siding, trim and soffit.
James Hardie's 30-year non-prorated warranty covers the siding itself. Our Limited Lifetime Workmanship Warranty covers the installation, which James Hardie does not warrant.
Our tier is set and published by James Hardie, not by us. See our Elite listing on James Hardie's website.
Siding, trim and soffit all come from James Hardie, so every part of your new exterior is made to work together, with one manufacturer standing behind the materials.
Hardie® products
We install the full Hardie® exterior system, so siding, trim and soffit all come from one manufacturer. Most of our Greater Atlanta projects use HardiePlank® Cedarmill® lap siding, often mixed with board & batten or shake on gables and front elevations.
HardiePlank® lap siding in Cedarmill® woodgrain or Smooth
HardiePanel® vertical siding with Hardie® Trim battens for board & batten
HardieShingle® straight-edge shake for gables and accents
Hardie® Trim and Soffit: corner boards, fascia, frieze boards, vented and solid soffit
Finish: ColorPlus® Technology factory color, or primed boards painted with Sherwin-Williams Duration
★★★★★
"There are no words to adequately describe what an incredible experience we had with Keystone… we were thrilled with the final product!"
Charlotte Wood
Our process
One dedicated point of contact from your first consultation to your final walkthrough.
01
We measure your home, talk through Hardie® profiles, textures and colors, and give you a detailed written estimate.
02
We remove the old siding or stucco, then inspect and repair any rot, framing or sheathing before anything new goes on.
03
Housewrap, sealed seams and flashing go on first, then Hardie siding, trim and soffit, installed to James Hardie's instructions.
04
Paint or ColorPlus® finish, gutters where needed, a full clean-up and a final walkthrough of the finished home.
Where we work
Keystone installs James Hardie siding across Greater Atlanta and North Georgia from our base in Cumming, GA. If your town isn't listed, call us on (770) 744-3562.
Acworth
Athens
Buford
Canton
Flowery Branch
Loganville
Smyrna
Suwanee
Straight answers about James Hardie siding, Elite Contractor status and installation in Greater Atlanta and North Georgia. Last updated November 2026.
A James Hardie Elite Contractor is an installer in the top tier of the James Hardie™ ALLIANCE, James Hardie's contractor program. Members are placed in Select, Preferred and Elite tiers, and James Hardie describes Elite members as having the highest level of expertise and experience with Hardie® products, with an average affiliation of over 10 years. Keystone Siding & Windows is a James Hardie Elite Contractor serving Greater Atlanta and North Georgia.
Yes. Keystone Siding & Windows is a James Hardie Elite Contractor, the highest tier of the James Hardie™ ALLIANCE. Homeowners often call this a "Hardie approved" or "Hardie certified" installer. We install only genuine Hardie® fiber cement siding, trim and soffit, and you can check our Elite listing on our James Hardie profile.
Search your ZIP code on James Hardie's Find a Contractor page at jameshardie.com/find-a-contractor. James Hardie™ ALLIANCE members are listed with their tier: Select, Preferred or Elite. Ask the contractor which tier they hold and what workmanship warranty they offer, because James Hardie does not warrant the installation of its products.
Hardie® siding carries a 30-year, non-prorated, transferable limited substrate warranty from James Hardie, and ColorPlus® Technology finishes carry a separate 15-year limited finish warranty. Those cover the product, not the installation. Keystone adds a Limited Lifetime Workmanship Warranty on installation for owner-occupied, single-family homes, with painting workmanship on fiber cement covered for 5 years.
James Hardie engineers its siding and trim products for specific climates, which suits Georgia's heat, humidity and heavy rain. Fiber cement doesn't rot or attract termites the way wood can, and it doesn't warp in summer heat the way vinyl can. HardiePlank® lap siding in a Cedarmill® texture is the most popular choice on our Greater Atlanta projects.
Properly installed and maintained, James Hardie siding commonly lasts 50 years or more, and James Hardie backs it with a 30-year non-prorated warranty. Lifespan depends on correct installation, sound sheathing and flashing behind the boards, and simple upkeep: washing the siding and checking caulk lines around windows and doors once a year.
We don't install Hardie® siding over stucco. Stucco on Georgia homes often hides moisture damage and rot that only shows once it's removed. We remove the stucco, inspect and repair the sheathing and framing, install a weather barrier and flashing, then fit new Hardie siding and trim.
Keystone Siding & Windows installs James Hardie siding across Greater Atlanta and North Georgia, including Alpharetta, Roswell, Marietta, Cumming, Lawrenceville, Suwanee, Buford, Canton, Acworth, Smyrna, Flowery Branch and Athens. We're based in Cumming, GA. Call (770) 744-3562 or book a free design consultation online.
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