How to compare prefab house quotes
The lowest advertised price is not always the lowest total price. This guide shows what to compare before choosing a house supplier.
A prefab house quote should do more than show a house price. It should explain what will actually be delivered, which work remains on the plot, and which choices can change the final cost.
The safest comparison therefore does not begin with the number at the bottom of the quote. It begins with the delivery scope.
Start with the delivery scope
Ask for a written specification that separates what is included, what is excluded, and what can only be calculated after the plot has been assessed.
For a finished house delivery, look for:
- structure, exterior walls and roof
- windows and exterior doors
- interior surfaces
- kitchen and bathroom
- electrical and plumbing work inside the house
- technical installations
- documentation and handover
- guarantee terms and the guarantee start date
Terms such as “standard”, “prepared for” and “from price” need to be explained. Ask the supplier to identify the exact products, finish and work covered by each term.
Divide the price into three parts
A practical way to understand the complete project is to separate it into three cost areas.
1. House delivery
This is the house itself and everything supplied by the manufacturer. Compare the detailed specification, not only the model name or floor area.
2. Transport and installation
Transport, crane access and installation depend on the location and accessibility of the plot. Ask what the quote assumes about roads, lifting distance and working space.
3. Plot and local work
Groundwork, foundations, municipal applications, utility connections and outdoor work vary from plot to plot. These costs should be listed separately rather than hidden in a general allowance.
Check the conditions
Conditions are not necessarily a problem, but they must be visible and understandable. Pay particular attention to:
- how long the quote remains valid
- adjustment of material or transport prices
- assumed ground conditions
- access and working-area requirements
- the customer’s responsibilities before delivery
- changes billed separately
- products shown in images but not included
Ask what can change the price after signing, who approves the change, and how it will be documented.
Compare like for like
Two houses with the same floor area can have very different delivery scopes. Create a simple table with one supplier per column and one important cost per row.
| Cost item | Quote A | Quote B | To clarify |
|---|---|---|---|
| House structure | |||
| Interior delivery | |||
| Kitchen and bathroom | |||
| Electrical and plumbing | |||
| Transport and crane | |||
| Foundation and groundwork | |||
| Applications and connections |
This makes it easier to see whether a cheaper quote is simply missing work that will be charged later.
Questions before signing
Before proceeding, you should be able to answer yes to these questions:
- Do I have a complete, dated delivery specification?
- Do I know which work is my responsibility?
- Are transport, crane work and installation clearly described?
- Are plot costs separated from the house price?
- Do I know which choices can change the price?
- Are the schedule, payment plan and guarantee documented?
Compare our house models and stated house prices, or open a model to see its delivery scope, key details and gallery.
Written by Hjemover and reviewed by Delivery team. Last updated 26 July 2026.
