Step 1: Locate the contract and warranty
Gather the complete project record.
- Signed contract
- Proposal and scope of work
- Plans and specifications
- Change orders
- Invoices and payment records
- Written workmanship warranty
- Manufacturer warranties
- Completion and inspection records
Review the warranty term, start date, covered work, exclusions, notice method, inspection rights, transferability, and remedy.
Step 2: Identify the exact work involved
State which installation, construction, repair, or service is affected.
Include:
- Project address or service location
- Area, room, system, or component
- Contract item or scope reference
- Product model and serial number
- Completion or installation date
Avoid describing the problem so broadly that the contractor cannot identify the relevant work.
Step 3: Describe the condition precisely
Explain what is happening and when it occurs.
Record:
- The first symptom
- The discovery date
- Frequency or conditions
- Whether it is worsening
- Any resulting damage
- Any safety concern
Use objective details such as measurements, locations, dates, operating conditions, and visible differences.
Step 4: Identify the applicable standard
Connect the condition to a standard when possible.
This may be:
- A contract provision
- A plan or specification
- A manufacturer installation instruction
- A permit or inspection requirement
- An applicable code provision
- An approved sample or drawing
- A recognized trade practice
Quote or attach the relevant section rather than stating only that the work is defective.
Step 5: Document the condition
Preserve evidence before alteration.
- Photographs from several angles
- Video of leaks, movement, sound, or operation
- Measurements
- Product labels and serial numbers
- Damaged surrounding property
- Weather and incident information
Keep original files and create a written index explaining what each image shows.
Step 6: Address urgent risks
Protect people and property before focusing on the warranty dispute.
Urgent conditions may include:
- Active water entry
- Electrical danger
- Gas or combustion risk
- Structural instability
- Fire risk
- Unsafe equipment operation
Contact an appropriate qualified professional or public authority where necessary. Photograph the condition when safe, preserve removed materials, and keep emergency invoices.
Step 7: Notify the contractor promptly in writing
The notice should include:
- Your name and contact information
- The project or service location
- The contract and completion date
- The work involved
- The condition observed
- The discovery date
- The applicable warranty or standard
- The evidence attached
- The requested inspection and response
Keep the message factual and avoid assigning a cause that has not yet been established.
Sample workmanship warranty notice
Subject: Workmanship warranty notice for [project or address]
Your company completed [scope of work] on or about [date]. The agreement provides [quote or summarize the workmanship warranty].
On [discovery date], I observed [specific condition] at [location]. The condition appears inconsistent with [contract provision, plan, manufacturer instruction, code requirement, or other standard].
Attached are photographs, the relevant contract section, and supporting records. Please confirm an inspection date and provide your written findings and proposed corrective plan by [reasonable date].
Step 8: Allow reasonable inspection
The contractor may have a right to inspect and correct covered work.
Confirm in writing:
- The inspection date
- Who will attend
- Which areas require access
- Whether testing will be destructive
- Who will restore opened areas
- Whether a manufacturer representative will attend
Photograph the condition before and after inspection.
Step 9: Request written findings
Ask the contractor to state:
- What condition was observed
- What caused it
- Whether it is covered
- Which warranty provision applies
- Whether materials or another party are responsible
- What corrective action is proposed
A written explanation helps clarify whether the dispute concerns cause, coverage, timing, evidence, or remedy.
Step 10: Review the corrective plan
A complete corrective plan should identify:
- The proposed repair method
- Materials and products
- Areas to be opened or removed
- Permits and inspections
- Testing after repair
- Painting, finishing, and restoration
- Work schedule
- The warranty for corrective work
Confirm which costs are covered and which remain owner-paid before work begins.
Step 11: Preserve evidence during corrective work
Document:
- The condition before opening the area
- Concealed conditions discovered
- Removed materials and failed parts
- The repair method
- New products and serial numbers
- Testing and inspection results
Request copies of permits, inspection approvals, completion records, and the new repair warranty.
When the contractor denies coverage
Request the denial in writing and determine what is disputed.
The contractor may claim:
- The warranty expired.
- The problem involves materials.
- Maintenance was inadequate.
- An outside event caused the damage.
- Another contractor altered the work.
- The condition is within tolerance.
- The work was outside the original scope.
Ask for the exact warranty provision and evidence supporting the stated cause.
Obtain an independent assessment
An independent assessment may be useful when:
- The cause is disputed.
- The contractor and manufacturer blame each other.
- The condition is concealed.
- The proposed repair appears incomplete.
- Safety, structural, or significant property damage is involved.
The professional should identify observations, standards, probable cause, urgency, and recommended corrective work.
Escalation options
When direct resolution fails, review the contract and applicable deadlines before escalating.
Possible routes may include:
- Written escalation within the contractor's company
- A builder or third-party warranty program
- A bond or insurance claim
- A licensing-board complaint
- A consumer-protection complaint
- Mediation or arbitration
- Small claims court
- Advice from a qualified attorney
USAGov recommends gathering documents about the sale or service and attempting to resolve the issue with the company before using further complaint channels.
Workmanship warranty claim checklist
- Contract and warranty located
- Covered work identified
- Applicable standard identified
- Condition photographed and measured
- Urgent risks addressed
- Written notice sent
- Delivery proof retained
- Inspection access offered
- Written findings requested
- Corrective scope reviewed
- Repair evidence preserved
- New repair warranty confirmed
How to make a workmanship warranty claim: key takeaway
A strong workmanship warranty claim identifies the covered labor, applicable standard, observed condition, discovery date, and supporting evidence.
Notify the contractor promptly, allow reasonable inspection, request written findings, and obtain a complete corrective plan covering access, repair, testing, finishing, and the warranty for corrected work.
Review a workmanship problem
Use the Workmanship Warranty Defect Checker
Review the work performed, applicable standard, possible material issue, timing, evidence, notice, third-party changes, exclusions, and immediate safety or property risks.
Frequently asked questions
What should a workmanship warranty claim include?
Include the project, contract, work involved, condition, discovery date, applicable standard, evidence, and requested inspection or correction.
Should I notify the contractor before hiring someone else?
For nonemergency work, usually yes. The warranty may give the original contractor a right to inspect and correct the work.
What should I do during an emergency?
Protect people and property, document the condition when safe, notify the contractor, and preserve emergency invoices and removed materials.
Can I request the contractor's decision in writing?
Yes. Ask for the stated cause, coverage decision, warranty provision, and proposed corrective action.
What happens when the contractor denies the claim?
Identify the exact reason for denial, gather evidence addressing it, consider an independent inspection, and review available dispute or complaint procedures.