Cost: general building contractor
Compare totals for identical work and finishes. Check included design and coordination, external contracts and variation terms. No automatic premium over separate trades or average margin percentage is established.
Editorial update on 19 September 2026
Compare equivalent offers
Request supplies, installation and exclusions by package. Separate firm prices and allowances. A structural shell square-metre rate cannot be compared with renovation or a finished house.
Avoid double counting
Check design, site setup, management and inspections already within package prices. Add necessary external services. Coordination may be included in the total; do not automatically add a standard percentage.
Control changes
Define validity, taxes, price revision, payments and variations. Link every change to cost and schedule before approval. Address unperformed work, reservations and completion records.
The three budget levels
Where your money goes
- WorksOn quotationDefined packages and supplies.
- OrganisationOn quotationCoordination and site setup.
- Design and monitoringOn quotationIncluded or external roles.
- ExtrasOn quotationAllowances and approved changes.
What makes the price vary
Scope
Packages and exclusions.
Interfaces
Separately commissioned work.
Project
Available plans and constraints.
Commitments
Schedule and financial terms.
Indicative scenarios
No grant is deducted from the budget shown here. If a quote mentions support, request the exact scheme and confirmation of your eligibility before including it in financing.
Frequently asked questions
Can I commission the shell only?
Yes if offered. Define elements and preparation for later trades precisely.
Does a general contractor replace an architect?
Do not equate them. Identify design and project obligations separately from construction.
Who handles a subcontractor’s defect?
Define your contractual contact and reporting procedure. Exact legal responsibility depends on the case.
Does a lower price prove poor subcontracting?
No. First compare scope, quantities, exclusions and conditions, then request explanations.
Your exact price, in 2 minutes
Describe your project, receive quotes from tradespeople in Luxembourg — free, with no commitment.