1–2 days
Lost on every bid
The BOQ arrives in someone else's format. An engineer retypes it into your template before any engineering work begins.
AI estimating for construction contractors
Your most expensive people are doing your most repetitive work.
SiteBlock is an AI estimator for construction contractors. Send it a BOQ on WhatsApp or email and get back a priced bid, in your own format. Launching soon.
Get early access Free Starter plan at launch
The problem
Every bid starts with retyping.
Before any real estimating happens, your best people are copying spreadsheets.
30–60 days
Of engineer time a year
At 15–30 bids a year, that is a month or more of your most expensive person doing copy-paste.
1 person
Holds all the prices
Unit prices live in one spreadsheet, with no record of what won or lost. When that person leaves, it all leaves too.
The Estimating agent
Send a document. Get finished work.
SiteBlock's first AI worker takes a tender from inbox to priced BOQ in four steps.
- 01
Reads
Your BOQ and documents in any format: Excel, PDF, scans, drawings, photos.
- 02
Structures
Line items, quantities, units and hierarchy, pulled out cleanly.
- 03
Proposes
Prices from your own history and the market, plus enquiries to suppliers.
- 04
Returns
A completed BOQ, ready to submit, in the same format you received it.
2 days 20 minutes
It does the work. You make the decisions.
Why SiteBlock
Built around how you already work.
It knows your company
Generic AI tools start from zero every time. SiteBlock remembers your prices, suppliers and projects, so every estimate starts from what you already know.
It works where you work
Forward a tender and get the result back in the same chat. No installation, no new interface to learn.
It reads any format
Every client sends a different BOQ. SiteBlock reads each one as it arrives. No templates, no standard format required.
The first employee who never leaves and never forgets.
Who it's for
Contractors who bid from BOQs, without a full-time estimator.
Small and mid-sized contractors and subcontractors. We're starting in Croatia, then Slovenia and the wider Adriatic region.
Built by people from the industry
We didn't learn this domain from interviews.
-
Marko Piplica
Co-founder
Construction professional who has led and delivered complex projects.
-
Luka Fresl
Co-founder
10+ years building technology products (Cirtuo, Pactum, TealBook, TEVA).
-
Brankica Stefanović
Head of Technology
Software engineer focused on AI and scalable AI solutions.
Waiting list
Be one of the first contractors to use SiteBlock.
We're opening SiteBlock first to a small group of pilot contractors working on real tenders.
- Priority access to the pilot
- A free Starter plan at launch
- Direct input into what we build next
You're on the list.
We'll be in touch when the pilot opens. Have a tender coming up? Keep the BOQ handy.