室內設計地圖What to Note in an Interior Decoration Contract? How to Handle Payment and Acceptance?
An interior decoration contract should include a detailed list of the scope of work, project schedule, payment installment plan (avoid full payment upfront), material specifications and brands, acceptance standards, and warranty terms. The Consumer Protection Law ensures consumers can request a written contract. The following is a neutral compilation of information; it is recommended to have a legal or engineering professional review the contract before signing.
What Clauses Should a Complete Interior Decoration Contract at Least Include?
According to the Consumer Protection Law, consumers can request a written contract from the contractor. A relatively complete interior decoration contract should typically include the following items:
| Category | Required Content |
|---|---|
| Parties | Contractor name, unified business number, responsible person, interior decoration business registration information |
| Scope of Work | List of construction items one by one, location and quantity of work |
| Material Specifications | Brand, model, grade (e.g., formaldehyde grade of panels), origin, with material list attached |
| Schedule | Start date, completion date, extension clauses, and late completion penalties |
| Payment | Payment installment method, amount for each installment, and payment conditions |
| Changes | Written confirmation and pricing method for additions/deductions |
| Acceptance | Acceptance procedure, standards, and defect rectification mechanism |
| Warranty | Warranty scope, duration, start date, and response time |
Missing any item increases the risk of future disputes. It is recommended to have a legal or engineering professional review the contract before signing. This page is a neutral compilation of information.
How to Arrange Payment Milestones with a Progress-Based Installment Plan?
Interior decoration project payments are commonly made using a progress-based installment method, linking payments to construction progress to reduce the risk of paying too high a proportion upfront. Common payment milestone arrangements are:
- Signing Fee: Down payment at contract signing; the proportion should not be too high.
- Start-up Fee: Paid at project start and mobilization.
- Work Progress Fee: Paid in stages based on key work phases (e.g., electrical/plumbing, masonry, carpentry) as they commence or are completed.
- Final Acceptance Payment: Paid after completion of final acceptance and defect rectification; it is recommended to retain a certain proportion as the final payment.
It is advisable to clearly specify in the contract the amount proportion and payment conditions (corresponding construction progress) for each installment, and agree that payment will not be made if the progress is not met, to avoid difficulties in recovery if work stops midway. Avoid paying the full amount at once.
The proportion of each installment is subject to contractual freedom. It is recommended to confirm and include it in the contract before signing. This page is a neutral compilation of information, not legal advice.
How to Handle Additions or Changes During Construction to Avoid Disputes Later?
Additions/deductions and design changes are common sources of decoration disputes. It is recommended to establish a change confirmation mechanism in the contract and implement a "confirm first, then construct" approach:
- Propose Change: The proposing party (owner or contractor) provides a written explanation of the change content and reason.
- Quotation and Price Difference: Obtain a written quotation for the change item, confirming the price difference (addition or deduction) from the original contract.
- Both Parties Confirm: The owner gives written consent before construction, and the change is attached as an appendix to the contract.
- Adjust Schedule Simultaneously: If the change affects the timeline, confirm whether the completion date is extended.
The contract should pre-agree on the review process and cap for additional payments, and specify that "changes without written confirmation may not be priced or executed" to avoid verbal misunderstandings.
Pricing and recognition of changes are subject to the contract terms. This page is a neutral compilation of information.
How to Conduct Acceptance? Which Items Should Be Checked One by One, and How to Handle Defects?
Acceptance is a critical step before making the final payment. It is recommended to conduct a item-by-item written acceptance. Common inspection items include:
- Dimensions and Quantities: Whether the construction area and cabinet dimensions match the contract/drawings.
- Surface and Edge Finishing: Flatness, edge details, whether paint or veneer has bubbles, warping, or color differences.
- Electrical and Plumbing Tests: Socket power, switches, drainage smoothness, slope for water drainage, and any leaks.
- Doors, Windows, and Hardware: Smooth operation of doors, windows, and cabinets; stable hardware installation.
- Waterproof Areas: Water testing in bathrooms, balconies, and other waterproof areas.
Defects found should be recorded in writing (listing items, locations, and rectification deadlines), with an agreement to re-inspect after repairs before making the final payment. It is recommended to specify the acceptance procedure and the proportion of the final payment retained in the contract.
Acceptance standards and final payment conditions are subject to the contract terms. This page is a neutral compilation of information.
FAQ
What essential clauses should an interior decoration contract include?
The contract should include: scope of work (list of construction items one by one), project schedule (start/completion dates and extension clauses), payment method and amounts for each installment, material specifications with brand and model, contractor's unified business number and responsible person, acceptance procedure, and warranty period. Missing any item increases the risk of future disputes.
How to arrange payment installments safely?
It is generally recommended to divide into 3–4 installments: a down payment at signing (not exceeding 10–30% of the total project cost), progress payments at each construction stage, and a final payment after acceptance (at least 10% retained). Avoid paying the full amount at once to prevent difficulties in recovery if the contractor stops work or disappears.
How should material specifications be stated in the contract?
Material clauses should specifically list the brand, model, grade (e.g., formaldehyde grade F1/F3 for panels), and origin, avoiding vague terms like "equivalent product." It is recommended to attach a material list as an appendix to the contract and agree that "material changes require written consent from both parties."
What items should be checked during acceptance?
Acceptance items include: actual measurement of construction area dimensions, surface flatness and edge finishing, electrical and plumbing tests (socket power, water drainage slope), smooth operation of doors and windows, and no bubbles or warping in paint/veneer. Defects should be recorded in writing, with an agreement to pay the final payment after repairs.
What should the warranty clause cover?
The typical warranty period for interior decoration is 1 year (3–5 years for structural items). The contract should specify the warranty start date (usually the acceptance date), warranty scope (construction defects vs. natural wear of consumables), and the contractor's response time for repairs in working days. If the contract lacks a warranty clause, it is recommended to add one.
Can the contractor request a shortened construction period or expedited work?
Shortening the construction period may affect quality (e.g., insufficient drying of putty, paint bubbling). If both parties agree to adjust, a written change confirmation should be signed, and it should be ensured that the work processes still meet material construction standards. If the original completion date is exceeded, a penalty clause can be included to protect the consumer.
How to handle disputes?
Consumer disputes can be addressed through: (1) Local government consumer service centers (national hotline 1950); (2) Consumer protection groups such as the Consumers' Foundation, Chinese Taipei; (3) Local (municipal or county) building authorities (for unlicensed contractors or failure to apply for interior decoration review permits); (4) Small claims litigation (for amounts under NT$100,000). Keep the contract, estimates, payment records, and photos as key evidence.
Should design fees and construction costs be in separate contracts?
Design fees (for design drawings, construction drawings, measurements, and supervision) and construction costs (actual materials and labor) should be itemized separately to avoid future disputes. Some contractors offer a bundled "design + construction" quote, but you should still request a breakdown of design fees and construction costs.
References (official data sources)
· This page is a neutral compilation of information for reference only. Please refer to the announcements of the competent authority for actual registration status and regulations.
