Version: April 2026
Article 1 – Definitions
In these general terms and conditions, the following definitions apply:
- Contractor: D-Kozijnen, established at Langstraat 52a, 2242 KN Wassenaar, registered with the Chamber of Commerce under number 89679733;
- Client: the natural person or legal entity entering into an agreement with D-Kozijnen;
- Consumer: a client who is a natural person and acts for purposes outside their business or professional activity;
- Agreement: any arrangement between the client and the contractor regarding the supply and/or installation of products;
- Products: window frames, windows, doors, sliding doors, sun protection and related accessories;
- In writing: by letter, e-mail or any other electronic form of communication.
Article 2 – Applicability
- These general terms and conditions apply to all quotes, offers and agreements of D-Kozijnen, unless otherwise agreed in writing.
- Any purchasing or other conditions of the client are expressly rejected.
- Deviations from these conditions are only valid if agreed in writing and apply exclusively to the agreement in question.
- These conditions also apply to any subsequent assignments, additions and/or amendments to the agreement.
Article 3 – Quotes and offers
- All quotes from D-Kozijnen are non-binding and valid for 30 days from the date of the quote, unless otherwise stated.
- D-Kozijnen cannot be held to a quote if the client should reasonably have understood that the quote contained an obvious mistake or typographical error.
- Prices in quotes are based on the material and labour costs applicable at that time. Significant cost increases after acceptance may give rise to a price adjustment, of which D-Kozijnen will inform the client in a timely manner.
- Images and descriptions in brochures, websites or catalogues are indicative and may slightly differ from the delivered product.
Article 4 – Formation of the agreement
- The agreement is formed at the moment the client accepts the quote in writing or pays a deposit.
- D-Kozijnen confirms the assignment in writing by e-mail as soon as possible.
- Changes to the assignment after formation of the agreement are only valid if agreed in writing and may result in adjustment of the price and/or delivery time.
Article 5 – Measurement and custom work
- D-Kozijnen carries out a professional measurement prior to the production of custom products. The client ensures that D-Kozijnen has unimpeded access to the site.
- Custom products are manufactured based on the measurements taken by D-Kozijnen. Minor technical tolerances (≤ 5 mm) are inherent to the production process and do not constitute a defect.
- Custom orders cannot be cancelled after the start of production without compensation for the costs already incurred.
Article 6 – Delivery and installation
- The stated delivery times are indicative. D-Kozijnen endeavours to meet these, but is not liable for reasonable delays.
- Delivery takes place at the agreed address. The client is responsible for providing free and safe access to the installation site.
- Once the products have been delivered, the risk of loss or damage passes to the client.
- If the client refuses delivery or is not present at the agreed time, any additional costs for storage and redelivery are at the client’s expense.
- Minor damage to walls, plasterwork or finishes as a result of normal installation activities falls outside the liability of D-Kozijnen, unless otherwise agreed in writing.
Article 7 – Completion and handover
- Upon completion of the installation, a joint inspection takes place. The client signs an acceptance on a handover form.
- Visible defects must be reported at the time of handover. Visible defects reported later will no longer be recognised as a handover defect.
- Putting the delivered products into use constitutes acceptance of the handover, unless defects have been reported in writing before use.
Article 8 – Prices and payment
- All stated prices are inclusive of VAT (21%), unless otherwise agreed in writing.
- D-Kozijnen applies the following payment structure, unless otherwise agreed:
- 50% deposit upon order confirmation;
- 50% balance payment no later than the day of handover.
- Payment must be made by bank transfer. D-Kozijnen does not accept cash payments above the statutory limit.
- If the payment deadline is exceeded, the client is automatically in default and statutory (commercial) interest is due, as well as extrajudicial collection costs in accordance with the Extrajudicial Collection Costs Act (WIK).
- Retention of title: the delivered products remain the property of D-Kozijnen until the client has paid all outstanding amounts in full.
Article 9 – Warranty
- D-Kozijnen warrants the soundness of the delivered products and the quality of the installation.
- The warranty periods are:
- Installation and finishing: 2 years;
- Products (window frames, windows, doors): in accordance with the manufacturer’s warranty of the relevant manufacturer (typically 5–10 years on profiles, 5 years on hardware);
- Glazing (insulating glass): in accordance with the supplier’s warranty (typically 10 years).
- The warranty does not apply if:
- the damage is the result of improper use, negligent maintenance or external influences;
- the client or a third party has made modifications;
- there is normal wear and tear or weather-related factors.
- Warranty claims must be submitted in writing to info@D-Kozijnen.nl, accompanied by a description of the defect and photographic documentation.
Article 10 – Right of withdrawal (consumers)
- A consumer has the right to withdraw from the agreement within 14 calendar days of its formation, without giving reasons.
- The right of withdrawal does not apply to:
- products that have been custom-made or personalised (bespoke window frames and doors);
- services that have been fully performed prior to the expiry of the withdrawal period with the consumer’s consent.
- Withdrawal must be effected by means of a written statement to info@D-Kozijnen.nl. D-Kozijnen confirms receipt as soon as possible.
- Upon withdrawal, amounts paid will be refunded within 14 days, provided the products have not yet been taken into production.
Article 11 – Liability
- D-Kozijnen is only liable for direct damage that is the direct result of an attributable failure.
- Liability for indirect damage, consequential damage, lost profits or damage caused by third parties is excluded.
- D-Kozijnen’s liability is in all cases limited to the amount invoiced in connection with the assignment in question, up to a maximum of the amount paid out by D-Kozijnen’s liability insurer.
- A condition for any right to compensation is that the client reports the damage in writing to D-Kozijnen as soon as possible, but no later than 14 days after discovery.
Article 12 – Force majeure
- D-Kozijnen is not obliged to fulfil any obligation if it is prevented from doing so as a result of force majeure.
- Force majeure is understood to mean: circumstances beyond the control of D-Kozijnen, including strikes, supply problems with suppliers, extreme weather conditions, fire, government measures and pandemics.
- If the force majeure situation lasts longer than 60 days, both parties are entitled to dissolve the agreement in writing, without any right to compensation.
Article 13 – Complaints
- Complaints about the performance of the agreement must be submitted to D-Kozijnen via info@D-Kozijnen.nl as soon as possible, fully and clearly described.
- D-Kozijnen responds to submitted complaints within 14 days. If a complaint requires more time, the client will be informed in a timely manner.
- The submission of a complaint does not suspend the client’s payment obligation.
Article 14 – Applicable law and disputes
- All agreements with D-Kozijnen are exclusively governed by Dutch law.
- Disputes are preferably resolved by mutual consultation.
- If the parties are unable to resolve the dispute by mutual agreement, it will be submitted to the competent court in the district of Den Haag.
- Consumers also have the option of submitting a dispute to the Disputes Committee via the European ODR platform: ec.europa.eu/consumers/odr.
Article 15 – Amendments to the conditions
- D-Kozijnen reserves the right to amend these general terms and conditions.
- Amendments will be announced via the website and apply to new agreements concluded after the date of publication.
- The most current version is always available at www.D-Kozijnen.nl/algemene-voorwaarden/.
D-Kozijnen – Langstraat 52a, 2242 KN Wassenaar | info@D-Kozijnen.nl | CoC 89679733