AI bid writing assistant reusing past tenders for a contractor in Dublin in 2026

The verdict in three sentences

For a contractor answering 80 tenders a year, the technical submission is management's biggest block of unbillable time: 2 to 3 days per bid, or more than 200 person-days. An AI assistant connected to the internal document base (winning bids, project references, CVs, health and safety procedures) drafts a structured first version following the tender instructions, for a market budget of 8,000 to 20,000 EUR excl. VAT and 50 to 200 EUR a month in usage. A realistic goal is to halve writing time, with data hosted in Europe.

Where the time goes in a technical submission

The owner of a mechanical and HVAC contractor in Dublin or Sandyford knows the routine: read the specification, find last year's matching bid, adapt the method statement, update references and certificates, then reformat to the required template.

Human review remains essential: the AI proposes, the estimator validates technical choices, quantities and programme commitments.

Architecture and budget in 2026

The assistant relies on retrieval over your own documents (RAG): past bids are split, indexed and queried by a language model that cites its sources. Nothing is used to train a public model.

At Kolonell, an assistant of this kind is priced within the custom application grid of 4,000,000 to 7,000,000 FCFA (6,100 to 10,670 EUR excl. VAT), with maintenance of 75,000 FCFA a month (110 EUR) for knowledge base updates and model monitoring.

Rules to set from day one

Three safeguards prevent bad surprises. Confidentiality: client documents and your pricing must stay in EU hosting, which you check in the model provider's contract. Traceability: every generated paragraph cites its source bid so the reviewer can check it. Differentiation: a public buyer quickly spots generic text, so each submission must include project specifics (site constraints, phasing, proposed equipment).

Mini case study

Illustrative example: Ciarán, managing director of a 45-employee mechanical contractor in Dublin, answers 80 tenders a year. He goes from 20 hours to 9 hours per submission, or 880 hours saved a year. At a loaded cost of 60 EUR an hour for him and his estimator, the gain reaches 52,800 EUR. The project costs 15,000 EUR excl. VAT, plus 2,400 EUR a year in usage and hosting. Even without winning one extra tender, payback arrives in 4 months. With 4 more bids a year for the same effort, the order book grows too.

FAQ

Can AI write a technical submission on its own?

No, it produces a sourced first draft covering 60 to 70 % of the content. The estimator remains responsible for technical choices and contractual commitments.

Are our bids used to train a public model?

Not with a RAG architecture and a business contract: documents stay in your index, hosted in Europe, and providers commit not to reuse them.

How many documents do we need to start?

A base of 50 winning bids and 100 project references is enough for a useful pilot. Beyond 300 documents, retrieval becomes very precise.

Can a public buyer penalise a bid written with AI?

They score the content, not the tool. A generic text does lose points on technical merit, which is why each submission must be tailored to the project.

How long until the first assisted submission?

The pilot starts in week 4 on a live tender, full go-live takes 6 weeks.

Let's scope your project. Share your tender volume and the number of past bids available: we price an AI assistant in the 4,000,000 to 7,000,000 FCFA band (6,100 to 10,670 EUR excl. VAT), delivered in 6 weeks. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.