Washington tool

Washington Contractor Defect Notice Deadline Calculator

I built this tool to answer the question I hear most often on Washington contractor matters: when is my deadline? Washington construction-defect disputes run on three overlapping clocks. The first is the 45-day pre-suit notice clock under . The second is the six-year statute of repose under , which runs from substantial completion and is a hard ceiling. The third is the statute of limitations on the underlying contract or tort claim. Miss any one, and the case may be over.

Answer the nine questions below. The tool computes the 45-day pre-suit notice deadline, the six-year statute of repose deadline, and the statute of limitations on the underlying claim, and returns a strength score.

1Project type

What kind of work was done?

Chapter 64.50 RCW reaches construction-defect actions involving a residence. RCW 4.16.300 and 4.16.310 reach improvements upon real property more broadly. Pure repair work without an improvement may fall outside the construction-defect framework.

2Substantial completion date

When was the work substantially completed?

This date drives the six-year statute of repose under . The repose period begins at substantial completion or at the termination of the relevant services, whichever is later. After repose runs, the cause of action is barred regardless of when the defect was discovered.

3Date defect discovered

When did you first realize there was a problem?

This date drives the statute of limitations on the underlying claim. For a written contract, the SOL is six years under . For an oral contract or a tort claim, the SOL is three years under . The fraud claim runs three years with a discovery rule.

4Date 45-day notice already sent (if any)

If you already served the 45-day pre-suit notice, when?

Per , a homeowner must serve a written notice of claim at least 45 days before filing suit. Leave blank if you have not sent it yet.

5Contractor inspection request

After you sent the notice, did the contractor ask to inspect?

Under , the contractor has 21 days to respond. The contractor may inspect, offer to settle without inspection, or dispute the claim. Silence or refusal to engage is itself a fact the demand letter and any later complaint should preserve.

6Contractor offer

Did the contractor offer to repair or pay?

Acceptance of a reasonable offer ordinarily resolves the matter. Rejection is allowed and does not waive the claim. Per , a properly tendered offer can shape later cost-shifting if the matter goes to court.

7Deadlines missed already

Have you missed any deadline already?

Missing the six-year repose under is fatal. Missing the underlying SOL on the contract or tort claim is usually fatal. Filing before completing the 45-day notice is dismissed without prejudice, which leaves the SOL running.

8Approximate damage or repair cost

Roughly how much will it cost to repair?

The dollar amount matters for venue choice (small claims under $10,000) and for whether a $30,000 general or $15,000 specialty bond claim under can absorb the loss.

9Documentation you can produce today

Which of these do you have on hand?

A defect demand letter is far stronger when supported by contemporaneous documents and an independent inspection or expert opinion.

How the score is calculated

The score weighs the procedural posture and the evidence quality. Weights total 100 points and ride on top of the deadline math. A clean documentary record with photos, expert opinion, and a written contract is what moves a Washington contractor demand letter from a long shot to a serious negotiation.

The four verdict bands are 80 to 100 (Strong: contractor demand letter is justified), 60 to 79 (Moderate: demand letter likely productive if procedural steps are completed), 40 to 59 (Weak: tighten the file before sending), and 0 to 39 (Poor: small claims or a different theory may be the better path).

Authority notes

Statutory citations come from RCW 64.50.020 (45-day pre-suit notice), RCW 4.16.310 (six-year statute of repose), RCW 4.16.040(1) (six-year written-contract SOL), RCW 4.16.080 (three-year oral-contract and tort SOL), RCW 18.27.040 (contractor bond), and RCW 18.27.080 (registration prerequisite to suit by contractor). The 21-day window after the 45-day notice is set by RCW 64.50.020. Confirm any matter-specific dates against the live source before filing.

For background on Washington contractor disputes, see my Washington Contractor Disputes resource. For other Washington tools, see my Washington Business Law Resources hub.