The written warranty describes the promised coverage, but applicable law may provide rights beyond that document. “Lifetime” can be measured by the life of the house, the owner’s time in it, or the life of the company. Check which structural elements, areas and kinds of movement the warranty covers. Get the actual warranty document before you sign, and compare documents rather than sales summaries.
Why the document matters more than the label
Federal warranty coverage depends on the product, the work and the transaction. FTC rules distinguish service-only warranties from warranties covering products and workmanship. They also distinguish materials purchased for a home repair from materials sold as part of completed real estate. An installed product is not automatically outside federal warranty law.
This guide does not determine whether a particular foundation contract falls under federal warranty law. Read the written terms alongside the rights available under applicable law; a lawyer in your state can review a disputed or important warranty.
“Lifetime” needs a definition
The FTC has noted that with “lifetime” warranties “it is often difficult to tell just whose life measures the period of coverage.” It tells sellers to say which life they mean. A foundation warranty could run for:
- the life of the structure;
- as long as you own the house;
- the original purchaser’s life;
- or, in practice, as long as the issuing company exists to honor it.
Ask which one applies, and what happens if the installing company closes or changes ownership. Some product networks say they back their dealers’ warranties. Ram Jack, for example, says its local dealers issue a lifetime limited warranty, that “dealer warranties may differ by location,” and that a dealer warranty trust steps in if a dealer becomes inactive. Read the version your installer actually issues.
What to check in the coverage
The covered area. Ask for a drawing showing which supports and structural elements the warranty covers. Ram Jack’s public warranty page explains that each pile supports a limited area above it and that dealer warranties can differ. Do not assume work at one corner covers movement elsewhere in the house.
The definition of failure. Ask how settlement or other movement is measured, what tolerance applies, and who pays for an assessment. A warranty may promise an adjustment rather than a flat floor or repair of every cosmetic crack. Read the promised remedy as carefully as the coverage term.
Exclusions and maintenance. Ask whether the document addresses upward movement, plumbing leaks, drainage, work by others, and damage to finishes. Ask which maintenance duties, notice deadlines and testing requirements apply, and whether service visits or adjustments have fees. These are questions for the actual contract, not a standard set of terms shared by every company.
Different work can have different terms. Confirm that the warranty covers the method in your bid: piers, wall stabilization, shimming, drainage or waterproofing. A product warranty and an installer’s workmanship warranty may come from different organizations and cover different things.
Transfer: the terms that matter when you sell
Ask whether transfer requires notice, paperwork, a fee or an inspection, and whether coverage changes for the next owner. Get the deadline and process in writing. If you are buying a house with past foundation work, request the original contract, warranty, completed transfer documents and service history.
Where federal consumer-product warranty law applies, coverage for later owners is one of the conditions for using a full-warranty label. That does not determine whether a particular foundation contract falls under the law. The FTC guidance and the actual transaction need to be read together.
What our data shows about published terms
Across the 115 company websites reviewed for this edition, checked October 27, 2026:
- 32 stated a warranty duration or a lifetime term;
- 29 stated that a warranty is transferable.
That is statement coverage on company websites. It doesn’t measure how many companies offer warranties, and it doesn’t tell you what their contracts say. See How often a reviewed company website states a warranty term, and each company record for the exact statement and its source.
A warranty checklist to use with every proposal
- Give me the warranty document for this exact work. A brochure won’t do.
- Who issues it: the installer, a product network, or both? What happens if the installer closes?
- What is “lifetime” measured by?
- Which areas and components are covered? Is there a drawing?
- What movement counts as a failure, and how is it measured?
- What’s excluded (heave, plumbing, drainage, cosmetic damage)?
- What must I do to keep it in force (drainage, plumbing tests, notice periods)?
- How do I transfer it? Deadline, fee and paperwork.
- Are there service-call or adjustment fees?
- Is the warranty part of the signed contract?