Prefabricated Assembly House Procurement

When procuring prefabricated assembly houses, it is essential to focus on supplier selection, quotation breakdowns, contract terms, installation responsibilities, and after-sales support, while also choosing the appropriate type based on needs and budget.

1. Distinguish between middlemen and source factories
Prioritize selecting physical manufacturing enterprises with their own industrial parks, where production workshops and finished product yards can be inspected on-site. Such enterprises typically possess a complete production chain, enabling a direct display of raw material quality, production processes, and finished product standards, thereby avoiding issues such as material reduction, project delays, or lack of after-sales support caused by subcontracting by middlemen. During on-site inspections, focus on observing whether key indicators such as steel thickness and panel fire resistance ratings align with the advertised specifications.

2. Request detailed itemized quotation breakdowns
Require suppliers to provide written itemized quotations that clearly specify included items (such as the main structure, doors and windows, electrical circuits, etc.) and additional charges (such as transportation fees, installation fees, taxes, etc.). Avoid vague terms like 'comprehensive quotation' or 'all-inclusive price' to prevent additional charges being levied later under the pretext of 'not explicitly included'.

3. Incorporate material specifications into the contract
The contract should specify steel thickness (e.g., 2.5mm galvanized steel), panel fire resistance rating (e.g., Class A non-combustible), anti-rust process (e.g., hot-dip galvanizing treatment), and waterproof warranty period (e.g., 10 years). Additionally, agree on the rights and responsibilities for material sampling inspections, such as allowing the purchaser to commission a third-party agency for sampling inspections. If the specifications are not met, the supplier should bear the rectification costs to avoid unfulfilled verbal commitments.

4. Confirm installation responsibility
Require the manufacturer to provide proof of its own certified installation team (e.g., special operation certificates) and clearly specify installation responsibility in the contract. If the manufacturer outsources the installation, agree on a qualification review process for the construction party and quality control clauses for the construction work to prevent issues such as house leakage or structural deformation caused by non-standard installation.

5. Clarify after-sales terms
The contract should specify the warranty period for the main structure (usually not less than 20 years), the waterproof warranty period (e.g., 5 years), and the on-site response time for after-sales service (e.g., within 24 hours). Avoid vague terms like 'lifetime maintenance' and instead detail specific warranty periods and repair scopes to prevent after-sales evasion.

Type and Budget Selection
Common types in the market include space capsule guesthouses (97,750 yuan/set), container mobile homes (starting from 198 yuan/㎡), and light steel integrated houses (starting from 255 yuan/㎡). If rapid deployment is required and the budget is limited, container mobile homes can be prioritized; if long-term use and personalized design are pursued, light steel integrated houses or modular mobile homes are more suitable. Before procurement, a comprehensive assessment should be conducted based on the usage scenario (such as residential, office, or tourism) and budget.