- A proper quotation states scope, materials, quantities and exclusions.
- Meerwerk (variations) should be agreed in writing with a price before the work is done.
- A stelpost (provisional sum) is an unsettled decision — keep the number of them low.
- Payment should follow progress, not the calendar, with a retention until after handover.
- Handover produces a snagging list and a handover file; ask for photographs before anything is closed up.
The relationship with your contractor is defined by two documents: the quotation and the contract. Get those right and most of what follows takes care of itself. This guide explains what should be in them, what the Dutch terms mean and what to expect at handover.
Reading a Dutch quotation
A quotation, offerte, should let a stranger understand exactly what is being sold. Look for:
- Scope per element, not one line for the whole job.
- Named materials: brand, type, dimensions, finish. "Tiling" is not a specification; a named tile in a named format with a stated laying pattern is.
- Quantities where relevant.
- Explicit exclusions. A good contractor tells you what is not included, because that is where disputes come from.
- Provisional sums clearly marked as such.
- Payment schedule tied to stages.
- Period for the work, and what happens if it overruns.
- Waste, containers, protection and cleaning — small items, frequently omitted, always necessary.
Comparing two quotations on the bottom line only works if they cover the same scope. Usually they do not. Compare exclusions first; that is where the difference actually is.
The contract
For anything beyond a small job, get a written contract — an aannemingsovereenkomst. It should record:
- The parties, the property and the agreed scope, with the quotation and specification attached.
- The price and how VAT is treated.
- The payment schedule, linked to progress stages.
- Start date and duration, and how delay is handled.
- How variations are agreed and priced.
- Who obtains permits and who bears the municipal charges.
- Insurance: the contractor's liability cover, and construction insurance where relevant.
- Handover, snagging and the period for remedying defects.
- Guarantee arrangements.
Dutch law also provides certain protections for consumer clients, including rules on information, on handover and, in defined circumstances, on withholding part of the price. Ask your contractor how these apply to your contract and get the answer in writing.
Variations and provisional sums
Meerwerk is additional work outside the agreed scope. It arises for two reasons: you want something extra, or something unforeseen appears once walls are opened. Both are normal. What is not normal is discovering it on the final invoice.
The rule to insist on: variations are agreed in writing, with a description and a price, before the work is carried out. Reputable contractors propose this themselves, because it protects them as much as you.
Stelposten are provisional sums: an allowance for something not yet chosen. They are legitimate but they are open items. Two guidelines: keep the number low, and settle the important ones before work starts. A quotation with many provisional sums has a soft bottom line.
Ask: "If nothing unexpected happens and I change nothing, will the final invoice equal the quotation?" The answer should be yes. If it is not, ask which items are open and why.
Payment
- Tie payments to progress stages, not to dates. "First fix complete" is verifiable; "1 June" is not.
- Keep the initial payment proportionate. A first instalment covering materials and mobilisation is normal; a large sum before anything happens is not.
- Retain a final portion until after handover and the snagging has been dealt with.
- Pay the company, to a business account, against an invoice showing the company details and VAT number.
- Keep variations separate from the main schedule, so you can see what you have agreed to.
Where consumer protection rules give you the right to withhold part of the price, use it as intended rather than as a bargaining tool. It exists to secure remedial work, and treating it that way keeps the relationship functional.
Handover and snagging
Oplevering is the formal handover. It is a moment with legal consequences, not a courtesy visit.
How it should go:
- Walk the property systematically, room by room, and test everything that switches, opens or runs.
- Record defects and incomplete items in a written snagging list, signed by both parties.
- Agree a period for remedying them.
- Receive the handover file.
- Release the retention once the list is cleared.
Take time over it and bring someone with fresh eyes. Defects noted at handover are the contractor's responsibility to put right; issues raised months later are a harder conversation, although hidden defects remain the contractor's liability.
The handover file: what to insist on
- Structural calculation and drawings, where structural work was carried out.
- Photographs of services and structure before they were closed up. Pipe runs, cable routes, waterproofing, insulation, and the bearings of any steel beam. These cannot be recreated afterwards.
- Installation certificates for electrical and other regulated work.
- Product data for floor build-ups, particularly the acoustic performance in an apartment.
- Guarantee documents for appliances and materials.
- Paint codes and spare tiles for future repairs.
- The permit and any conditions attached to it.
Keep this with the property documents. At resale, or at the next renovation in ten years, it is the difference between a short conversation and an investigation.
What guarantee actually means
Two things are often confused.
Liability for defects. Under Dutch law a contractor is liable for defects in the work. For defects that were apparent at handover, they should be on the snagging list. For hidden defects, liability continues for a period after handover. This is a statutory matter, not a marketing promise.
A contractor's own guarantee. A voluntary undertaking, for example on the work as a whole for a defined period. What matters is what it covers, for how long, and what it excludes. Ask for it in writing rather than accepting a verbal assurance.
Manufacturer warranties on materials and appliances are separate again and usually run to you directly.
Our own arrangement is a one-year guarantee on the renovation work we carry out, with manufacturer warranties on products running alongside it. What matters more than the headline is that it is written down and that you hold the handover file to support a claim.
Summary
The quotation and the contract carry the whole relationship. Insist on a specification detailed enough that a stranger could price it, with exclusions stated explicitly, and compare competing quotations on scope before comparing them on price. Agree variations in writing before the work is done, keep provisional sums to a minimum, and tie payments to verifiable stages with a retention until after handover. At handover, walk the property properly, write a snagging list and collect the handover file — including photographs of everything that is about to disappear behind plasterboard.
Next: who does what or what actually takes long.