The 1-2-10 industry standard
Most reputable corridor builders — Skogman, Watts Group, Allen Homes, BJB, and others — offer a 1-2-10 warranty either directly or through a third-party administrator. The numbers map to coverage windows:
| Window | What's covered | Typical examples |
|---|---|---|
| Year 1 | Workmanship & materials (finishes) | Drywall cracks, paint, trim, doors, grout, sticking windows, HVAC balancing |
| Years 1–2 | Mechanical & delivery systems | Plumbing leaks, electrical defects, HVAC system failure (not wear), ductwork issues |
| Years 1–10 | Major structural defects | Load-bearing framing failure, foundation defects causing structural damage, roof structure failure |
"Major structural defect" is narrowly defined in most warranty documents — it usually means actual structural failure, not cosmetic cracking or settling. A hairline crack in a basement slab almost certainly isn't covered at year 8. A footing that drops three inches certainly is.
Iowa's implied warranty
Iowa courts have long recognized an implied warranty of workmanlike construction on new homes built and sold by a builder-vendor. This means even without a written warranty, the home must be reasonably fit for habitation and constructed to industry standards. The doctrine matters when:
- You bought from a builder who provided no express warranty.
- The express warranty period expired but the defect was hidden (latent).
- A subsequent owner is bringing a claim — recent Iowa case law has allowed limited extension to subsequent purchasers for major latent defects.
The implied warranty does not extend indefinitely. It's bounded by Iowa's statutes of limitations and the statute of repose, below.
The 15-year statute of repose: Iowa Code §614.1(11)
Iowa Code §614.1(11) is the outer time limit on most construction-defect claims:
- 15 years from the date of substantial completion for an improvement to residential real property.
- 8 years for commercial/non-residential improvements.
"Substantial completion" usually means the date the certificate of occupancy was issued or the date the home was first occupied for its intended use. After the repose period expires, claims against builders, designers, and material suppliers for construction defects are generally barred — even if you didn't and couldn't have discovered the defect until after the period ran out.
Practical implication: if you bought a corridor home built in 2010 and discover foundation settlement in 2026, the 15-year repose period is essentially closed — you have until roughly 2025 substantial-completion date plus 15 years to file. Move quickly with counsel.
How to make a warranty claim that works
1. Document the defect
Photos, video, written description, date of discovery. If water is involved, document the path — where it enters, where it pools. If a system has failed, note the make/model and date of installation.
2. Send a written claim
Most builder warranties require written notice within the coverage window. Email is usually acceptable; certified mail leaves a clearer paper trail for serious claims. Include:
- Date of substantial completion / closing
- Specific defect with photos
- Warranty section you believe applies
- Requested remedy
- Reasonable response deadline (14-30 days is standard)
3. Give the builder a chance to inspect and cure
Most warranties require you to give the builder access for inspection and a reasonable opportunity to fix the issue. Don't hire your own contractor to repair before the builder has had a chance — you may forfeit the claim.
4. Escalate in stages
- Written demand letter (often from your attorney) citing the warranty terms and Iowa's implied warranty doctrine.
- Mediation if the contract requires it. Many warranty documents mandate mediation before litigation.
- Iowa small claims (magistrate court) for claims up to $6,500 — fast, no attorney required, judge decides.
- Iowa District Court for larger claims. Expect litigation cost of $15-50K+ and a 12-24 month timeline.
- Arbitration if the contract mandates it. Faster but the arbitrator's decision is generally final.
What if the builder is out of business?
This is more common than buyers expect, especially for smaller custom shops. Options:
- Third-party warranty administrator (e.g., 2-10 Home Buyers Warranty) if your builder bought into one — the administrator handles claims independent of the builder.
- Builder's general liability insurance — claims may be made against the carrier if the defect falls within the policy's tail period.
- Subcontractors — for system-specific defects (HVAC, plumbing, electrical), the subcontractor may have a separate warranty.
- Iowa Mechanic's Notice and Lien Registry — for lien-related issues, the state registry is the starting point. See our sister site coralvillelaw.com for lien basics.
Pre-closing checklist to protect future warranty rights
- Get the express warranty in writing before closing. Read it. Note the response addresses and timelines.
- Confirm whether your warranty is builder-direct or third-party-administered.
- Get a copy of the builder's insurance certificate (GL and workers' comp).
- Generate a thorough pre-close punch list — items the builder agrees to complete after move-in.
- Save your closing paperwork including certificate of occupancy (start of repose period).
- Note the warranty 11-month walk-through date on your calendar — that's your last chance to flag year-1 workmanship issues.
Related
See our corridor builder directory, the new-construction buying process, and Iowa contractor licensing. For mechanic's lien law and construction litigation in Iowa, our sister site coralvillelaw.com covers the legal side.
Frequently asked
What does 1-2-10 cover?
1 year workmanship/finishes, 2 years systems (plumbing, electrical, HVAC), 10 years major structural defects. Specifics vary by builder warranty document.
How long do I have to sue under Iowa law?
Iowa Code §614.1(11) gives a 15-year statute of repose for residential construction defects (8 years commercial), measured from substantial completion. Statutes of limitations run inside that — typically 10 years for written contract claims, shorter for tort claims from discovery.
What if my builder won't respond?
Document in writing, give a cure period, then escalate: demand letter, mediation if required, small claims (up to $6,500) or district court. If the builder is gone, look to third-party warranty administrators, GL insurance, or subcontractor warranties.
Is a written warranty required by Iowa law?
No, but Iowa recognizes an implied warranty of workmanlike construction for new builds. Most reputable builders provide a written 1-2-10 or comparable warranty on top of the implied warranty.
Does the warranty transfer when I sell?
Sometimes. Structural coverage often transfers; workmanship year usually doesn't. Third-party administered warranties (e.g., 2-10 HBW) are more commonly transferable than builder-direct warranties. Read your warranty document.