Fiber Cement Siding, From the James Hardie Elite Preferred Contractor
JDH installs James Hardie fiber cement siding across Maryland and Virginia as a James Hardie Elite Preferred Contractor, the top tier of Hardie’s contractor program nationally. Fiber cement is one of two siding brands JDH installs (the other is ProVia for vinyl-style and composite profiles). Pricing runs $725 to $1,250 per square installed, with a $2,500 minimum job. The most common install is HardiePlank Cedarmill lap siding in ColorPlus pre-painted finish, which carries Hardie’s 30-year non-prorated substrate warranty and a 15-year ColorPlus finish warranty. JDH adds a 5-year transferable workmanship warranty on top. The forensic PCC inspection is free for homeowners. JDH is also VSI Certified, MHIC #137491, VA Class A #2705192986. Looking for the cost breakdown? See the fiber cement cost spoke.
How much does James Hardie fiber cement siding cost in Maryland?
JDH installs James Hardie fiber cement siding at $725 to $1,250 per square installed, with a $2,500 minimum job. Where you land inside the range depends on three things: profile choice (HardiePlank Cedarmill lap is the standard; HardieShingle accents, HardiePanel for board-and-batten, and HardieTrim add cost), prep complexity (existing siding tear-off, sheathing repair, weather barrier upgrade), and elevation count (a full-wrap install is more efficient per-square than three separate elevations done across multiple visits). The full Hardie system carries the 30-year non-prorated substrate warranty and a 15-year ColorPlus finish warranty on factory pre-painted products. JDH adds a 5-year transferable workmanship warranty. The forensic PCC inspection is free for homeowners. See the fiber cement cost spoke for the full price breakdown.
Jim Dodson
A HAAG Master-level inspector since 2021, leading a third-generation roofing contractor founded in 1986. The 35% Rule on this page is the same written rule applied to every JDH estimate, viewed from the other direction. We recommend replacement when the repair would burn 35 percent or more of what a full Owens Corning Platinum system costs on this specific roof. The math is documented with the PCC Method and delivered as a Digital Analysis video so homeowners see the actual numbers before signing anything. We also write what we’ll not do, and why, on every quote.
What every JDH James Hardie install actually includes
Fiber cement is a system, not just the siding board. These six components are non-negotiable on every JDH Hardie install, regardless of where the per-square price lands in the $725 to $1,250 range. Skipping any one is how a budget contractor hits a low quote and how the homeowner ends up with bowed siding, voided warranty, and paint peeling on year five.
Free PCC inspection & elevation measurement
JDH walks every elevation, documents existing siding condition (rot, T1-11 delamination, hidden water damage at wall penetrations), and measures the actual coverage area, not what the listing card claims. The PCC report shows you Problem, Cause, Consequence on every finding. About 1 in 4 inspections come back “you do not need new siding yet.”
PCC Method
Existing siding tear-off & sheathing repair
Existing siding comes off down to the sheathing. Every sheet of OSB or plywood gets walked, sounded, and photographed. Soft or rotted sheets are called out before the Hardie goes up, not after. Budget installs that “over-side” existing siding trap moisture and void the manufacturer warranty.
PCC sheathing inspection
Synthetic housewrap weather barrier
A code-approved synthetic housewrap (not asphalt felt) goes on every install, lapped and taped to the manufacturer’s spec. This is the layer that fails first on a budget install and the layer no homeowner ever sees once the Hardie is up. The housewrap is what makes the system watertight; the Hardie is what protects the housewrap.
Weather barrier referenceJames Hardie installed to manufacturer spec
HardiePlank Cedarmill (or HardieShingle, HardiePanel, depending on the look you want) installed to Hardie’s spec: corrosion-resistant fasteners, blind-nailed in the nail line at 16 inches on center, proper joint flashing at vertical butt joints, 1/4-inch clearance from horizontal surfaces. The install spec is what the Hardie Elite Preferred audit checks. Skipping any of it voids the substrate warranty.
Verify Hardie Elite
HardieTrim, corner posts, and J-channel detail
Every door, window, corner, and roofline transition gets HardieTrim or color-matched aluminum corner posts, J-channel, and proper kickout flashing at the roof-wall intersections. This is the trim work that turns a basic Hardie install into a finished home. Budget installs caulk over the gaps and call it done.
Why trim work matters
30-year Hardie + 15-year ColorPlus + 5-year JDH
James Hardie’s 30-year non-prorated substrate warranty, the 15-year ColorPlus finish warranty on factory pre-painted product, and JDH’s 5-year transferable workmanship warranty on top. Registered on your behalf within two business days of completion. Transferable to the next homeowner one time, which is what a buyer’s home inspector asks about during resale.
JDH siding warrantyIf your existing siding repair would cost more than 35 percent of new Hardie, replace.
JDH applies the same 35% Rule to siding that we apply to roofing. If a fair siding repair quote on your existing system lands at 35 percent or more of full Hardie replacement, replacement is the responsible call. The most common scenario: rotted T1-11 plywood siding or vinyl that is cracked and warping across multiple elevations. Patching three sides of a home with mismatched siding is rarely the value the homeowner thinks it is.
What it looks like in practice: a 10-year-old roof comes in with one bad valley and a flashing rebuild at $7,200. Full replacement on that roof is around $22,000. The repair lands at 33% · under the threshold, repair makes sense and carries our 5-year workmanship warranty.
Same roof a year later, after another storm, comes back with the original scope plus a chimney rebuild and 60 square feet of decking. Repair quote is $9,200. Replacement still around $22,000. That’s 42% · over the threshold. We tell the homeowner replacement is the responsible call, walk through the system shown on this page, and apply the diagnostic fee as deposit if they move forward. See replacement cost for the deeper price breakdown.
Where the “25% Rule” you’ve heard of actually comes from.
Most cost-guide content on “when to replace a roof” quotes the 25% Rule. Worth knowing where 25 comes from: the Florida Building Code. After Hurricane Andrew, Florida code officials wrote a re-roofing rule (in the Florida Building Code Existing Building chapter, often called the “25% Rule” on contractor forums) that says if more than 25 percent of a roof is repaired or replaced inside any 12-month period, the entire roof has to be brought up to current Florida wind-uplift code.
It’s a hurricane-country regulatory trigger, not a homeowner replacement-decision framework. Maryland and Virginia building codes don’t carry that provision. Contractors elsewhere have repurposed the 25 percent number nationally as a loose heuristic, but the Florida rule and a roofer’s replacement recommendation aren’t measuring the same thing:
- 25% (Florida code): Are you legally required to re-roof? “Yes” once you’ve touched a quarter of the area inside 12 months.
- 35% (JDH ethics): Is replacement the responsible call on this specific roof? “Yes” once a fair repair quote crosses a third of what a full replacement costs.
Two different questions, two different thresholds, neither one substitutable for the other. The 35 percent number is where JDH inspectors kept landing after looking at thousands of MD and VA roofs. It’s the point where the homeowner stops getting their money’s worth from a repair, regardless of what any building code requires.
Why our Hardie floor is $725 per square. And what a $400 per square install actually buys.
If you have seen the $400 per square (or $4 per square foot) fiber cement install quotes in Maryland, you have probably wondered how a real Hardie Elite Preferred install could be twice that. Here is what gets stripped out to hit that price.
- No PCC forensic inspection. The budget install measures from the curb and quotes the visible elevations. JDH walks every elevation, opens up suspect penetration points, and identifies the sheathing repair you actually need before the existing siding comes off.
- Over-side instead of tear-off. The budget install lays Hardie over the existing siding to save labor. Trapped moisture rots the sheathing in 18 months, the Hardie spec is violated, and the manufacturer warranty is void from day one.
- No housewrap upgrade. The budget install reuses whatever weather barrier (often degraded asphalt felt) was already on the wall. JDH installs a code-approved synthetic housewrap to Hardie spec on every install. This is the layer the homeowner never sees that decides whether the next thunderstorm shows up in the drywall.
- Generic non-Hardie fiber cement. The budget install uses Allura, Nichiha, or whatever the lumberyard had this morning. None of those carry the 30-year non-prorated substrate or the 15-year ColorPlus finish warranty. JDH installs James Hardie exclusively because that is the warranty homeowners can actually collect on.
- Face-nailed instead of blind-nailed. Hardie spec calls for blind-nailing in the nail line for proper expansion and contraction tolerance. Face-nailing leaves dimples in the finish, accelerates finish failure, and violates the Hardie install spec, voiding the substrate warranty.
- Workmanship warranty measured in days. JDH’s 5-year transferable workmanship warranty is non-negotiable on every install. A 30-day or 1-year workmanship warranty is industry-standard at the budget tier.
None of this is a knock on the homeowner who picks the budget install. The price is real, somebody shows up, Hardie boards get nailed on. But a Hardie install is meant to outlast the homeowner’s mortgage. JDH’s $725 per square floor is what an honest install costs when the elevation gets inspected, the sheathing gets repaired, the housewrap gets replaced, the Hardie gets installed to spec, and the manufacturer warranty actually registers. See financing if budget is the actual concern; an approved Service Finance Company application puts a typical full-wrap Hardie install at a manageable monthly payment over 120 months, subject to credit approval.
From your call to a finished James Hardie install, step by step
Five steps, same process every time, whether the install is a single dormer elevation or a full-wrap two-story colonial in HardiePlank Cedarmill ColorPlus.
1 You call · we answer live +
A real JDH team member takes the call, not an answering service. We confirm your address is inside our 90-mile service radius, ask about the roof’s age and what prompted the call, and schedule the free inspection. If you’re not sure replacement is even necessary yet, that’s exactly what the inspection settles.
2 HAAG-certified inspection · PCC Method +
A Design Specialist (the JDH name for our field inspectors: Joey Walzel, Tom Raley, Sam Carts, or Matt Brown, with Inspector Manager Brian McClees leading the team) walks the roof with FLIR thermal, drone, GoPro, snake camera, moisture meter, and HAAG shingle gauges. Decking condition, ventilation balance, and flashing age all get measured, not eyeballed. Every finding is documented as Problem, Cause, Consequence: the PCC Method.
3 35% Rule applied · the honest recommendation +
The inspection data runs through the 35% Rule. If a fair repair would cost less than 35 percent of replacement and the roof has serviceable life left, we tell you to repair it, not replace it. If repair crosses the threshold, or the roof is simply past its serviceable life, replacement is the recommendation and you get the written reasoning, not a sales pitch.
4 Digital Analysis video · written quote +
You receive a written photo and video report with PCC commentary on every finding, plus an itemized replacement quote: shingle line and color, underlayment, ice-and-water coverage, ventilation corrections, and deck repair allowance all named on the contract. If storm damage is involved, the documentation is structured the way insurance carriers expect, though JDH does not act as a public adjuster. See the claims walkthrough.
5 Replacement installed · 50-year + 5-year warranty +
Most full-wrap Hardie installs in Maryland and Virginia run 5 to 8 working days depending on home size, weather, and the number of elevations: existing siding tear-off, sheathing inspection and repair, weather barrier (typically a synthetic housewrap), Hardie installed to spec with proper fastener placement and nail blind-nailing in the nail line, HardieTrim and corner posts color-matched, ColorPlus finish touch-ups, magnet sweep. The Hardie 30-year substrate warranty and 15-year ColorPlus finish warranty are registered on your behalf within two business days. JDH 5-year transferable workmanship warranty on top. Dump trailer stays on the street, not the lawn.
Two siding brands. James Hardie and ProVia. That is it.
JDH installs James Hardie for fiber cement and ProVia for vinyl-style and composite profiles. We have refused brands we do not install for a reason: we like to keep things simple, and when we shake your hand and say it will last we need to have faith in two things, the install crew and the products. Hardie and ProVia we know. The rest we leave to other contractors.
Top tier of the James Hardie Contractor program (Top 1% nationally). JDH installs HardiePlank lap, HardieShingle, HardiePanel, and HardieTrim with ColorPlus factory pre-painted finish. 30-year non-prorated substrate warranty plus 15-year ColorPlus finish warranty when installed by an Elite Preferred contractor to Hardie spec.
Verify certificationWhen a roof replacement includes skylights, certified VELUX installation keeps the manufacturer warranty intact. JDH does step-flashed perimeter rebuilds and dome replacements as part of the new-roof scope.
Skylight repairStorm-impact siding repairs alongside roof work. HardiePlank fiber cement, color-matched and nailed to spec to maintain the 30-year warranty.
JDH sidingStorm-impact doors and windows replaced alongside the roof when the same event damaged multiple components. ProVia Endure + Signet, factory-certified install.
Windows & doorsGutter failures alongside a roof replacement (overflow staining, fascia damage) get the aluminum micro-mesh upgrade with lifetime no-clog warranty backed by OC.
Gutter guards5 Maryland counties, 3 Virginia counties, 90-mile radius from St. Leonard
JDH dispatches Hardie-trained install crews from 4821 St Leonard Rd. Same-day forensic inspection across the core counties below, next-business-day for the expansion footprint. Hardie pricing is consistent across the service area; profile, prep complexity, and elevation count drive within-range cost, not city.
JDH Remodeling headquarters at 4821 St Leonard Rd, St Leonard MD 20685. View on Google Maps for reviews and hours.
James Hardie Fiber Cement Siding FAQ
How much does James Hardie fiber cement siding cost installed in Maryland? +
JDH installs James Hardie fiber cement siding at $725 to $1,250 per square installed, with a $2,500 minimum job. The most common JDH install is HardiePlank Cedarmill lap siding in ColorPlus factory pre-painted finish. Where you land in the range depends on profile choice (HardiePlank is the standard; HardieShingle, HardiePanel, and HardieTrim add cost), prep complexity (existing siding tear-off, sheathing repair, weather barrier upgrade), and elevation count (a full-wrap install is more efficient per-square than three separate elevations across multiple visits).
Why does JDH install James Hardie and refuse other fiber cement brands? +
JDH installs two siding brands, period: James Hardie for fiber cement and ProVia for vinyl-style and composite profiles. JDH refuses to install Allura, Nichiha, Boral, LP SmartSide, and a dozen other brands. The reason is simple: JDH likes to keep things simple. When JDH shakes your hand and says the install will last, JDH needs to have faith in two things, the install crew and the products. Hardie and ProVia JDH knows. The rest JDH leaves to other contractors.
What is the difference between HardiePlank, HardieShingle, HardiePanel, and HardieTrim? +
HardiePlank is lap siding (the classic horizontal-board look, available in Cedarmill woodgrain texture or Smooth) and is the most common JDH install. HardieShingle is shingle-look siding for accent gables, dormers, and historic-look elevations. HardiePanel is large vertical panels for board-and-batten or modern architectural looks. HardieTrim is the matching trim board for door surrounds, window frames, corners, and rooflines. JDH installs all four, frequently combined on the same elevation. ColorPlus pre-painted finish is available on all four product lines.
What is the James Hardie 30-year warranty and how does ColorPlus work? +
James Hardie carries a 30-year non-prorated substrate warranty covering the fiber cement itself against rot, cracking, and damage from termites and woodpeckers. ColorPlus Technology is Hardie’s factory pre-painted finish, applied in a controlled environment to multiple cured coats, and carries a separate 15-year finish warranty. Both warranties require the install to be performed to Hardie spec by a current Hardie contractor (JDH is Elite Preferred, the top tier). JDH registers the warranty on your behalf within two business days of completion. Both warranties transfer to the next homeowner one time, which matters at resale.
Should I tear off my old siding or have Hardie installed over it? +
Tear off, every time. Installing Hardie over existing siding traps moisture, accelerates sheathing rot, violates the James Hardie install spec, and voids the substrate warranty. Budget installers will quote “over-siding” to save 10 to 15 percent of the labor cost. The savings disappear within 18 months when the trapped moisture starts showing up at penetrations. JDH tears off existing siding on every install, inspects and repairs the sheathing, installs a synthetic housewrap weather barrier, and then installs Hardie to spec.
Can I paint James Hardie myself instead of using ColorPlus? +
Yes, Hardie sells a primed product (Primed for paint) designed to take a quality 100 percent acrylic exterior paint. The trade-off is the finish warranty: site-painted Hardie does not carry the 15-year ColorPlus finish warranty, only the 30-year substrate warranty. A typical site paint job on Hardie holds 7 to 10 years in Maryland or Virginia conditions before needing a repaint. ColorPlus pre-painted holds 15 years under warranty and longer in practice. Most JDH customers pick ColorPlus once they see the per-square cost difference vs the long-term repaint expense.
How long does a James Hardie install take? +
Most full-wrap single-family Hardie installs in Maryland and Virginia run 5 to 8 working days depending on home size, weather, and elevation count. A single-elevation install (one side of the home or a dormer wrap) is typically 2 to 3 days. Steps include existing siding tear-off, sheathing inspection and repair, synthetic housewrap, Hardie install to spec with proper fastener placement, HardieTrim and corner posts color-matched, ColorPlus finish touch-ups, magnet sweep, and walkthrough. JDH schedules a specific calendar window, not an all-summer maybe.
Will homeowner insurance cover damaged siding replacement? +
For damage from a covered peril (wind, hail, fallen tree, fire, lightning, vandalism) most Maryland and Virginia policies cover repair or replacement after your deductible. Age-related wear, rot, and finish failure on uncovered siding are generally excluded. JDH documents siding claims with HAAG Master Level forensic findings, photo evidence, and Xactimate-formatted scopes of loss. JDH does not act as a public adjuster; the coverage decision belongs to the carrier.
Does JDH offer financing for a James Hardie install? +
Yes, through Service Finance Company. Promotional 0% APR options are available for qualified Maryland and Virginia homeowners; most homeowners land around 6.99% APR over 10 years, subject to credit approval. Approved financed jobs require no deposit; non-financed jobs require a one-third deposit at contract signing, which is the legal maximum in Maryland and Virginia. JDH walks the rate, term, and monthly payment options on-site so you can decide what fits your budget before you sign anything. See financing for current promotional windows.
What does it mean that JDH is James Hardie Elite Preferred? +
Elite Preferred is the top tier of the James Hardie Contractor Alliance program nationally, representing roughly the top 1% of Hardie contractors. Elite Preferred contractors carry audited install-quality scores, pass periodic Hardie spec audits, complete annual product training, and meet a customer-satisfaction threshold. The Elite Preferred status is also a prerequisite for the longest manufacturer warranty terms on a Hardie install. JDH is Elite Preferred plus separately VSI Certified Installer (Vinyl Siding Institute), MHIC #137491, and VA Class A #2705192986.
Verify everything on this page
Every credential and standard referenced above is publicly verifiable. Don't take JDH's word for it.
- 1 HAAG Education Inc.HAAG Certified Inspector Directory
The forensic inspection credential held by the majority of insurance adjuster field staff. Verify Jim Dodson's HCI Master Level credential (#992109047) directly with HAAG.
haageducation.com → - 2 Maryland Department of LaborMHIC Contractor License Search
Look up MHIC #137491 to confirm active status, trading name, and any disciplinary history.
dllr.state.md.us → - 3 Virginia DPORVirginia Contractor License Lookup
Confirm Class A #2705192986 on the Department of Professional and Occupational Regulation database.
dpor.virginia.gov → - 4 Owens CorningPlatinum Preferred Contractor Locator
OC's official directory of Platinum Preferred contractors. JDH appears in the Southern Maryland and Northern Virginia listings.
owenscorning.com →
Get Your James Hardie QuoteFixed Quote. No Pressure. No Pitch.
A JDH inspector will walk your home, measure every elevation, recommend the right Hardie profile and ColorPlus color, and email you a fixed quote before we leave. About 1 in 4 inspections result in no recommended work because JDH inspectors are not paid on commission.
- 60-90 minutes on-site · written report and fixed Hardie quote before we leave
- PCC Method applied to every finding
- Hardie Elite Preferred installation to manufacturer spec
- Documentation usable by insurance adjusters and lenders
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- Same day: a call to confirm a time that works
- On site: 60-to-90 minute forensic inspection with full photo report