Home-improvement marketing often turns resale into a simple equation: spend a certain amount, improve the exterior and recover a predictable percentage when the house sells. That makes for an appealing sales message, but it strips away the variables that determine real property value.

National research does show that exterior replacement projects can perform well in cost-versus-value comparisons. The 2025 Cost vs. Value Report from Zonda and the Journal of Light Construction compares average project costs with estimated value retained at resale across 119 United States markets.

Those figures are benchmarks. They are not promises, and they do not eliminate the need for local real-estate advice.

What National Remodeling Reports Actually Measure

Cost-versus-value reports compare standardized project descriptions, average installed costs and estimates of the value a completed project may contribute at resale.

The Journal of Light Construction’s siding-replacement project assumes replacement of a defined area of existing siding, installation to manufacturer specifications and factory trim at openings and corners.

That model is useful for identifying broad remodeling trends. It does not describe every house, product, labor market or project scope in the Quad Cities.

Why a National ROI Percentage Is Not Your Personal ROI

Do Not Transfer Vinyl-Siding ROI Directly to Gentek Shakes

Some national reports publish a cost-recovery figure for a standardized vinyl-siding replacement. Gentek Fairhaven Sound shakes and scallops are polypropylene specialty cladding, not conventional vinyl siding.

A national vinyl-siding percentage should not be presented as the guaranteed return for a Fairhaven Sound project. The materials, quantities, accent design, labor and total project cost may be substantially different.

The report can support the general statement that siding replacement is a recognized exterior-remodeling category. It cannot establish the precise return for a particular Gentek profile on a particular home.

What New Siding Can Contribute

The value of siding is not limited to a spreadsheet. A well-planned project may improve how buyers perceive the home before they ever enter it.

Aesthetics Can Support—or Undermine—Resale

New materials do not automatically produce a better-looking house. An exterior can be technically new and still feel disorganized if it uses too many profiles, unrelated colors or poorly proportioned accents.

PEPA highlights the design flexibility of polymeric siding, including varied colors, textures and architectural profiles. Flexibility is valuable, but it requires discipline. The availability of many options is not a reason to use all of them on one elevation.

Resale-conscious design generally favors:

• A coordinated palette with a clear main color, trim color and limited accent
• Shake or scallop profiles that support the home’s architecture
• Accent placement on genuine architectural features
• Consistent trim around windows, doors and corners
• Clean transitions between siding, shakes, brick and stone
• Physical color samples reviewed against the actual house

Avoid Designing for a Fictional “Average Buyer”

Homeowners are often told to choose only beige, gray or white before selling. That advice is too simplistic. A poorly chosen neutral can be less attractive than a well-coordinated deeper color.

The better objective is broad visual coherence. Roof color, masonry, window finish, neighborhood character and architectural style should guide the palette.

If resale is approaching, a local real-estate professional can offer useful insight into buyer expectations within the home’s actual price range. Product suppliers and contractors understand materials; they do not replace a local market analysis.

Condition May Matter More Than Trend

A fashionable exterior color cannot compensate for active water entry, deteriorated sheathing or visibly poor workmanship. If the current siding is failing, the priority should be diagnosing and correcting the underlying condition.

Buyers and inspectors may pay particular attention to:

• Loose, cracked or missing cladding
• Staining below windows or roof intersections
• Soft or deteriorated trim
• Open joints around exterior penetrations
• Wavy courses or visibly uneven walls
• Mismatched replacement pieces
• Missing permits or project documentation when applicable

Workmanship Is Part of the Value Proposition

PEPA owns the VSI Product Certification Program, which provides independent third-party certification pathways for polymeric siding products. Product certification can help establish that an identified product meets applicable performance criteria.

Certification does not remove workmanship from the equation. The selected cladding must still be installed according to the manufacturer’s instructions and coordinated with the wall’s water-resistive barrier, flashing, trim and supporting substrate.

From a resale standpoint, a recognizable product installed poorly is not a premium result. Straight courses, clean corners, properly proportioned trim and well-resolved penetrations are visible evidence of care.

When Re-Siding Before a Sale May Make Sense

• The existing cladding is visibly deteriorated or incomplete.
• Multiple previous repairs have created a patchwork appearance.
• An inspection has identified exterior defects that require correction.
• The project scope can be completed properly before listing.
• The planned design fits the architecture and surrounding market.
• The homeowner has compared the project cost with local real-estate advice.

When a Full Replacement May Not Be the Best Pre-Sale Move

• The existing siding is functional and needs only limited professional repair or cleaning.
• The proposed project would over-improve the home relative to comparable properties.
• The seller would need to choose materials hastily without resolving design details.
• The work cannot be completed and documented before the intended listing date.
• More urgent structural, roofing, electrical or moisture problems remain.
• A local real-estate professional advises that buyers would prefer to make the selection themselves.

How to Calculate Your Actual Project Return

A homeowner’s actual financial return can only be evaluated after identifying the real project cost and the value reasonably attributable to the completed work.

Even this calculation involves judgment. A home may sell for more after the project, but changing inventory, market appreciation, negotiation and other improvements may also influence the price.

A pre-project market analysis and a post-project sale do not create a controlled experiment. Treat the result as an estimate rather than a scientifically isolated return.

Documentation to Keep for a Future Buyer

• Signed project scope and final invoice
• Manufacturer, product line, profile and color
• Applicable warranty documents
• Contractor information
• Permit and inspection records when required
• Photographs of the exposed wall and water-management work
• Documentation of any insulation installed behind the siding
• Care and maintenance instructions

Claims Homeowners Should Question

• “This siding will add more value than the project costs.”
• “You are guaranteed to recover a national ROI percentage.”
• “Every buyer prefers this color or profile.”
• “A specialty polymer shake project has the same return as a standardized vinyl-siding project.”
• “The warranty transfers automatically without limitations.”
• “New siding will resolve underlying water or structural problems by itself.”