All your construction documents, a prompt away.

Cobl offers three plans: Free, Pro, and Team. The Free plan lets you sign up instantly with no credit card required and generate around 5 documents, enough to test Cobl on a real tender response before committing. The Pro plan increases your capacity to around 15 documents, suited to teams responding to tenders regularly. For construction firms handling bids at volume or needing custom setup, the Team plan is tailored to your workflow. Book a call with our team to discuss your needs.

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Yes, provided the AI platform is built with security and data control at its core, which is exactly how Cobl is designed. On the efficiency side, the gains are real: teams cut technical brief drafting from days to hours because most of any tender response already exists in past bids. On the security side, Cobl protects your data with AES-256 encryption at rest, TLS 1.2+ in transit, and 24/7 monitoring with automated alerts. Your documents are never used to train AI models, no fine-tuning, no data reuse, no hidden training, and Cobl only selects LLM providers that commit to no training or fine-tuning on your inputs. For construction firms handling confidential project data, Cobl also offers flexible deployment in sovereign, private, or on-premise clouds, including hosting directly in your own AWS or Azure tenant or running fully inside your infrastructure with no internet connection required. AI does the assembly; your experts keep control of validation and final review.

To write a construction proposal, structure it in six parts: project understanding, technical approach, team and references, timeline, pricing, and compliance documents. Start by restating the client's requirements in their own terms, evaluators score relevance, not length. Then detail your methodology, safety measures, and comparable past projects. The fastest way to do this consistently is to reuse validated content from previous winning bids rather than writing from scratch: most of a strong proposal already exists in responses you've written before.

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Cobl pulls data from your past documents, CRM, and uploaded files into construction quotes and proposals, and exports to Word, PowerPoint, or PDF depending on what the tender requires. Tenders rarely accept a single format. You might need a PDF technical brief, Word-based supplier approval forms, and an editable pricing annex. A platform that reads and outputs multiple formats saves the reformatting hours that usually happen the night before a deadline.

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Cobl builds construction tender responses and proposals while connecting directly to your CRM, so client details, contacts, and deal context flow into every document automatically. Instead of copy-pasting company names and project references from a spreadsheet, your response pulls the right client information from the systems you already use, reducing errors on the administrative forms where a wrong detail can disqualify a bid.

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An RFP (request for proposal) in construction is a formal document a client or public body issues to invite contractors to bid on a project, detailing the scope, technical requirements, timeline, and evaluation criteria. Most construction RFPs require a technical brief, pricing documents, and administrative forms. Responding well means proving both technical capability and reliability, which is why RFP responses are among the most time-consuming documents construction teams produce.