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SUWANVARA LAWFIRM
Suwanvara Law Firm Co., Ltd.
SUWANVARA LAWFIRM
SUWANVARA LAWFIRM
Suwanvara Law Firm Co., Ltd.
Civil Law

Building a House or Hiring a Contractor — Work Unfinished, Abandoned, or Off-Spec: What to Do

Contractor abandons the job, builds off-spec, runs late, or the owner won't pay — common construction disputes and both sides' rights.

by Legal Advisory TeamApril 16, 20261 min read
Building a House or Hiring a Contractor — Work Unfinished, Abandoned, or Off-Spec: What to Do

Building a house or hiring a contractor involves a large sum and is a common source of disputes — on both the owner's and the contractor's side — from unfinished work and abandonment to off-spec building and non-payment of instalments.

Common disputes

  • Contractor abandons the job / runs past the deadline
  • Work doesn't match the spec or isn't up to quality
  • Claiming instalments beyond the work actually done
  • Owner not paying instalments, or changing the design without agreeing extra cost

It comes down to the contract and evidence

Most problems arise from a loosely drafted or non-written contract. You should have: a clear scope and drawings; work/payment instalments tied to progress; deadlines and late-penalties; conditions for rework and termination; and a workmanship warranty.

What to do when there's a problem

  1. Keep full evidence — contract, drawings, instalment invoices, progress photos, communications.
  2. Record delays and defects with dates.
  3. Don't pay the final instalment or sign off if the work isn't right.
  4. Consult a lawyer to negotiate, claim damages, or terminate per your rights.

📌 See more: civil litigation & contract disputes · business legal advisory

If you have a construction dispute — as owner or contractor — talk to our team to protect your rights and claim correctly.

Frequently asked questions

What are the common construction disputes?+

Contractors abandoning the work or running late beyond the deadline, work that does not match the drawings or the quality specified, drawing down instalments beyond the work actually completed, and on the owner's side failing to pay instalments or changing the design without agreeing the extra cost.

What should a construction contract contain?+

A clear scope of work and drawings, work stages tied to payment stages that track real progress, a completion date with penalties for delay, terms for variations and for termination, and a warranty on the work. Most disputes come from a loosely drafted contract, or none in writing at all.

The contractor has abandoned the job. What comes first?+

Gather the evidence in full — contract, drawings, payment claims, progress photographs and correspondence — and record the delays and defective work with dates. Then consult a lawyer about negotiating, claiming damages, or terminating as your rights allow.

When should the final instalment be paid?+

Do not pay the final instalment or sign off acceptance while the work is still incomplete, because accepting the work makes a later claim much harder. Check the work against the drawings and the contract first.

Why tie payment stages to progress?+

Because it is the mechanism that prevents drawing down more than the work completed, which is one of the most common disputes. If payment is not tied to measurable progress, an owner can pay out a great deal while the work lags behind.

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