The verdict in three sentences
An Amsterdam aluminium window manufacturer working with housing developers and architects should treat its website as a specification tool, with a library of BIM objects and technical sheets and a price request form with drawings attached. The template below takes half a day to fill in and turns each wish into a measurable requirement, so quotes from different agencies become comparable. Plan a 2026 market ballpark of EUR 12,000 to 40,000, 8 to 14 weeks and EUR 175 to 550 a month of maintenance.
Template part 1: context, audiences and goals
| Section | To fill in | Example of a measurable requirement |
|---|---|---|
| Product range | Sliding systems, casement windows, curtain walls, sun shading | 6 ranges, each with its own page |
| Priority audiences | Housing developers, architects, main contractors, housing associations | One path per audience from the homepage, 2 clicks maximum |
| Area served | Amsterdam region, Randstad, Belgium | Region pages with completed projects |
| Main goal | Qualified price requests | 25 requests a month with drawings within 6 months |
| Secondary goal | BIM and spec sheet downloads | 150 downloads a month, tracked by source |
| Benchmarks | 3 to 5 reference sites | List of points to beat |
| Internal constraints | Who updates sheets and how often | Technical team updates a sheet in under 10 minutes |
Template part 2: features and content
| Feature | Measurable requirement | Priority |
|---|---|---|
| Technical library | 40 to 120 sheets filterable by range, thermal and acoustic performance, PDF download | Must have |
| BIM objects | IFC files plus native formats for common CAD tools, download after a business email | Must have |
| Energy performance data | Uw values and data developers need for BENG calculations, with source documents | Must have |
| Project pages | One page per development: developer, architect, number of homes, range installed, photos | Must have, 15 at launch |
| Price request | Form with project type, number of units, deadline, upload of PDF or DWG drawings up to 50 MB | Must have |
| Dutch and English | Full site in both languages, technical terms reviewed by your engineers | Must have |
| Architect area | Specification texts and details behind a validated sign up | Nice to have |
| Speed | Pages loading in under 2.5 seconds on mobile 4G | Must have |
Drawing uploads are the most underpriced item. Specify maximum file size, accepted formats, retention period and where files are routed, with a clear GDPR notice on how the data is used.
Template part 3: technical scope, budget and schedule
| Work package | What to require | Indicative duration | Budget (2026 market ballpark) |
|---|---|---|---|
| Discovery and sitemap | Workshops, audience paths, wireframes | 2 weeks | EUR 2,000 to 4,500 |
| Design and build | 15 to 30 page templates, responsive | 3 to 4 weeks | EUR 3,500 to 11,000 |
| Technical library and BIM | Sheet template, import of 40 to 120 sheets, filters | 2 to 3 weeks | EUR 3,000 to 10,000 |
| Price request form and references | File upload, notifications, 15 project pages | 1 to 2 weeks | EUR 1,500 to 5,500 |
| Copy in Dutch and English, basic SEO | Range copy, metadata, structured data | 2 weeks in parallel | EUR 2,000 to 6,500 |
| Testing and launch | QA, redirects from the old site, training | 1 week | EUR 500 to 2,500 |
| Maintenance | Updates, backups, small changes | Monthly | EUR 175 to 550 per month |
Indicative total: EUR 12,000 to 40,000 over 8 to 14 weeks. As a nearshore benchmark, Kolonell's prices are EUR 1,830 to 3,050 for a Growth site (8 to 12 pages, built in blog, 14 to 21 business days), EUR 40 per extra page, EUR 110 per extra language, EUR 90 per page of copywriting and EUR 53 to 183 a month for maintenance. The filterable library with tracked BIM downloads is a simple custom app at EUR 3,810 to 6,100.
Mini case study
Illustrative example: Joost is sales director at a 70 person aluminium window maker in Amsterdam Noord and receives 45 price requests a month, often incomplete, with drawings sent by email. Sorting and chasing takes 30 minutes per request, 22.5 hours a month. With a form that requires project type, quantities and drawings, he targets 10 minutes per request: 15 hours saved a month, EUR 825 at EUR 55 an hour, about EUR 9,900 a year. If the BIM library helps win one extra specification a year on a 90 home development worth EUR 170,000, a EUR 28,000 site pays back on the first win.
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
FAQ
What should an Amsterdam window manufacturer budget for its website?
The 2026 market ballpark is EUR 12,000 to 40,000, depending on the number of technical sheets and BIM depth. The library package alone is EUR 3,000 to 10,000.
Should we offer BIM downloads?
Yes if you want architects to specify your products, since they drop objects straight into their models. Provide at least IFC files for your 10 to 20 most specified products.
How many project pages should we publish?
Aim for 15 developments at launch with developer, architect, number of homes and range installed. Add 1 or 2 a month with the client's approval.
How long does the project take?
From 8 to 14 weeks, including 2 to 3 weeks to prepare product data. Collecting technical sheets is the usual cause of delay.
How do we compare agency quotes?
Ask every agency to answer package by package on this template, with a price and a duration per line. Drop any offer that does not price the technical library separately.
Let's scope your project. Send us your completed template, or just your ranges and number of technical sheets, and we will price every package with a budget and a timeline. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
