Siding warranties can be confusing, and understanding what your siding warranty actually covers is essential for every Minnesota homeowner. A warranty is only as good as its terms, and many homeowners discover too late that their siding damage is not covered due to exclusions they never knew about. At Weatherguard Construction, we have helped homeowners in Stillwater, Woodbury, Lakeville, and across our service areas understand their warranty options so they can make informed siding decisions.

Types of Siding Warranties

There are two distinct warranties that apply to every siding project, and understanding the difference is critical:

Manufacturer's Product Warranty

This warranty covers defects in the siding material itself — things like delamination, excessive fading, manufacturing defects, and material failure. Manufacturer warranties vary significantly by brand and material:

  • Vinyl siding — Typically carries a "lifetime" warranty, but read the fine print. Most vinyl warranties are prorated, meaning coverage decreases over time. A 30-year-old vinyl panel might only be covered at 10-20% of its original value.
  • LP SmartSide — Offers a robust 5/50 Year Limited Warranty. The first 5 years cover 100% of material and reasonable labor costs for manufacturing defects. Years 5-50 provide prorated material coverage. This is one of the strongest warranties in the industry.
  • Fiber cement (James Hardie) — Typically a 30-year non-prorated warranty on the substrate and a 15-year warranty on ColorPlus factory-applied finish.
  • Steel and aluminum siding — Usually 40-year or lifetime warranties against manufacturing defects, with separate finish warranties.

Workmanship or Installation Warranty

This warranty comes from your siding contractor and covers the quality of installation — proper nailing, flashing, caulking, moisture management, and adherence to manufacturer specifications. This is often the more important warranty because the majority of siding failures result from improper installation, not material defects.

At Weatherguard Construction, we stand behind our work with a comprehensive workmanship warranty because we know the quality of installation determines your siding's long-term performance. As a certified LP SmartSide installer, our installations are backed by both our company warranty and LP's enhanced warranty program.

What Siding Warranties Typically Cover

Most manufacturer warranties cover:

  • Manufacturing defects (delamination, blistering, splitting)
  • Excessive color fading beyond specified limits
  • Material failure under normal use conditions
  • Structural integrity of the product

Most workmanship warranties cover:

  • Proper installation per manufacturer specifications
  • Adequate nailing and fastening
  • Correct flashing and moisture management at transitions
  • Trim and accessory installation quality

What Siding Warranties Usually Exclude

Understanding exclusions is just as important as understanding coverage. Common warranty exclusions include:

  • Improper maintenance — Failure to repaint when required, neglecting to keep siding clean, or allowing vegetation to grow against panels
  • Acts of God — Hail, wind, tornado, and other severe weather events. These are covered by your homeowner's insurance, not your siding warranty
  • Color matching — Manufacturers do not guarantee exact color matches for replacement panels, especially after years of UV exposure
  • Consequential damages — Most warranties cover the siding product itself but not damage caused by siding failure (like interior water damage or mold)
  • Unauthorized modifications — Alterations, attachments, or modifications not approved by the manufacturer can void coverage
  • Installation by non-certified contractors — Some manufacturers require installation by certified or approved contractors for full warranty coverage

How Warranty Coverage Differs by Material

Vinyl Siding Warranties: The Fine Print

Vinyl siding warranties sound impressive — many advertise "lifetime" coverage. However, these warranties are typically:

  • Prorated — Coverage decreases each year, so a claim at year 20 may only cover a fraction of replacement cost
  • Limited to the original homeowner — Many vinyl warranties are non-transferable or offer significantly reduced coverage to subsequent owners
  • Subject to wind speed limitations — Some vinyl warranties exclude damage from winds above 100-110 mph, which are not uncommon in Minnesota severe thunderstorms
  • Covering material only — Labor for replacement is rarely included beyond the first few years

LP SmartSide Warranties: Industry-Leading Coverage

LP SmartSide offers one of the strongest siding warranties available. Key features include:

  • 5-year full coverage including reasonable labor costs for manufacturing defects
  • 50-year prorated substrate warranty for long-term peace of mind
  • Transferable to subsequent homeowners, which protects your home's resale value
  • Backed by LP Building Solutions — a Fortune 500 company with the financial strength to honor claims

This warranty structure is a major reason we recommend LP SmartSide to homeowners across Eden Prairie, Burnsville, and all our service areas.

Fiber Cement Warranties

James Hardie offers a 30-year non-prorated warranty on the substrate and 15 years on ColorPlus finishes. The non-prorated aspect is a strength — if a covered defect occurs in year 25, you receive full material replacement value. However, labor is only covered for a limited time.

How to Protect Your Siding Warranty

Follow these steps to ensure your siding warranty remains valid and enforceable:

  1. Choose a certified installer — Many manufacturers require professional installation for warranty validity. Weatherguard Construction is certified by LP Building Solutions and follows all manufacturer installation specifications.
  2. Keep your documentation — Save your purchase contract, material invoices, warranty registration, and installation records. Store copies digitally.
  3. Register your warranty — Many manufacturers require registration within 30-90 days of installation. Your contractor should handle this, but verify.
  4. Follow maintenance requirements — Keep siding clean, repaint engineered wood products on schedule, and address damage promptly.
  5. Document any issues — If you notice a problem, photograph it immediately and contact both your contractor and the manufacturer.

The Importance of the Installation Warranty

We cannot overstate how critical your contractor's workmanship warranty is. Industry data consistently shows that 80%+ of siding failures are installation-related, not material defects. Issues like improper nailing, missing flashing, inadequate gap spacing, and poor moisture management are all installation problems that a manufacturer's warranty will not cover.

When choosing a siding contractor, ask specifically:

  • What does your workmanship warranty cover?
  • How long does it last?
  • Is it transferable if I sell my home?
  • What is the process for filing a warranty claim?
  • Will you be available to honor the warranty in 5, 10, or 15 years?

Weatherguard Construction is a family-owned company that has been serving Minnesota homeowners for 25+ years. When we provide a workmanship warranty, we have the track record and stability to stand behind it. Schedule a free consultation to discuss your siding project.

Frequently Asked Questions

Are siding warranties transferable when I sell my home?

It depends on the manufacturer and warranty type. LP SmartSide warranties are transferable, which adds value to your home. Many vinyl siding warranties are either non-transferable or offer reduced coverage to subsequent owners. Always check the specific warranty terms and complete any required transfer paperwork.

What should I do if I think I have a warranty claim?

Document the issue with dated photographs, then contact your installer first (for workmanship issues) or the manufacturer (for material defects). Weatherguard Construction helps our customers navigate both types of claims. Having your original contract and warranty registration ready will speed the process.

Does painting LP SmartSide void the warranty?

No. LP SmartSide is designed to be painted, and periodic repainting is actually part of proper maintenance. Using quality exterior acrylic latex paint and maintaining the finish protects both the product and your warranty. LP recommends repainting every 10-15 years depending on exposure and climate conditions.

Why do some contractors offer longer warranties than others?

Warranty length alone does not determine quality. A 25-year warranty from a contractor who has been in business for 2 years is worth less than a 10-year warranty from a company with 25+ years of proven track record. Look for contractors with financial stability, strong reputations, and a history of honoring their commitments. Ask for references from past warranty claims.