The verdict in three sentences
A construction company sells not on slogans but on project references and verifiable qualifications. In 2026 in Rennes, a credible showcase site costs 5,000 to 13,000 EUR excl. VAT, portfolio and RGE qualifications page included. A well-built site lifts quote requests by 6 to 15 percent from project owners.
What a construction showcase site costs
Budget depends on the number of trades presented, the depth of the project portfolio and how qualifications (RGE, Qualibat) are highlighted. A client wants to see concrete work and guarantees.
| Line item | 2026 range (EUR excl. VAT) | Notes |
|---|---|---|
| Design + brand | 1,400 - 3,500 | Solid image, field credibility |
| Build (5-8 pages) | 1,500 - 3,500 | Trades, references, contact |
| Project portfolio | 1,000 - 2,800 | Before/after galleries, project sheets |
| Qualifications / RGE page | 500 - 1,500 | Certifications, ten-year insurance |
| Qualified quote form | 800 - 2,000 | Needs pre-qualification |
| Copywriting + local SEO | 900 - 2,400 | Trades, service areas |
A construction SME targets 7,000 - 10,000 EUR excl. VAT with portfolio and quote form. Lead time is 5 to 8 weeks, with gathering site photos often the limiting factor.
B2B trust signals: what triggers the tender
A project owner compares, checks and reassures themselves before consulting. The items below are what move a visitor from curious to a prospect requesting a quote.
| Trust signal | Impact on confidence | Priority |
|---|---|---|
| Dated project references | Proof of experience | High |
| RGE / Qualibat qualifications | Guarantee of seriousness | High |
| Visible ten-year insurance | Lower perceived risk | High |
| Clear service areas | Geographic relevance | Medium |
| Client testimonials | Social proof | Medium |
| Structured quote form | Ease of contact | High |
In Singapore, a construction firm targeting regional tenders thinks in SGD: budget 8,000 to 20,000 SGD for an equivalent showcase site, with emphasis on BCA certifications and large-project references.
Mini case study
Mr. Le Gall, head of a construction company in Rennes (18 staff), invests 9,200 EUR excl. VAT in a showcase site with a 20-project portfolio and RGE page. Previously the company received about 8 quote requests per month, mainly by referral. Six months later the site generates 7 additional qualified requests per month, of which 25 percent lead to a project. At an average project of 45,000 EUR, two additional monthly projects represent revenue potential well above the site cost from the second month.
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FAQ
Is a project portfolio really decisive?
Yes, it is the most-viewed element by project owners. Dated before/after galleries and project sheets (budget, timeline, scope) reassure far more than a sales pitch.
Should we display RGE and Qualibat qualifications?
Absolutely: they condition access to certain markets and subsidies. A dedicated page (+500 to 1,500 EUR) presenting your certifications and ten-year insurance strongly boosts credibility.
Does the online quote form generate real requests?
Yes, provided it is structured (type of work, area, desired timeline). A pre-qualifying form raises the quote-request rate by 6 to 15 percent and filters out irrelevant requests.
What is the timeline for a construction site?
Budget 5 to 8 weeks. Gathering and selecting site photos often extends the plan, so start it at the brief.
Is local SEO useful in construction?
Yes: searches by trade and area ("house renovation Rennes", "mason Ille-et-Vilaine") carry high intent. Local content work markedly improves the flow of qualified requests.
Let's scope your project. Share your trades, qualifications and the volume of projects to showcase and your budget, and we will frame a quote-generating showcase site. 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.
