Construction. Simplified.
Price the job, run the crew, track every dollar and get paid — all from one login. The software does the paperwork so you can run the business.
No takeoff. No line-by-line data entry. Walk the space on video and Contrax reads the footage, writes the scope of work, and prices every line — while you watch.
Stop estimating. Start reviewing. Tell it what you’re building and a complete, structured estimate comes back in minutes — your job becomes checking it, not writing it.
Architectural plans, engineered drawings, a permit set, an inspector’s notice. Upload the PDF — every page — and Contrax reads it the way an estimator would: the room dimensions and areas printed on the sheet, the door and window schedules, what is being demolished or relocated, and what the permit obliges you to do.
Those measurements become the quantities. The quantities become the estimate, priced from your own rate book like everything else — so a plan that says 1,000 sq ft is 1,000 sq ft in your quote, not a number you retyped at nine at night.
Contractors don't go shopping for new systems because we're bored. Most of us would rather keep doing it the way we've always done it than learn something new halfway through a season. We're stubborn about it, and usually that's a strength.
So if you're on this page, my guess is one of these is true:
Every contractor hits that wall. It isn't a sign you're bad at this — it's a sign the business outgrew the way you were running it. That happened to me somewhere around the point where I was good at building and hopeless at everything after five o'clock.
I'm Cameron. I run Ramsauer Renovations in Oshawa. I built Contrax because I needed it — the estimating was eating my evenings, jobs were finishing without me knowing what they made, and everything I could buy was built either for a one-man handyman or for a company with a hundred people and a full-time estimator.
So it exists to solve the problems I actually had, in the order they actually hurt. Every feature in it went in because something went wrong on one of my jobs first.
I'm not going to tell you switching is effortless, because it isn't — it's a weekend to set up and about a week of your crew asking where things are. What I will tell you is that the evening work stops being yours. That's what it bought me, and it's why I think it's worth the week.
One connected system, from the first phone call to money in the bank.
Catch every lead, quote fast, and turn a won estimate into a live job with one tap.
Schedule the team, track their hours, and keep every job on budget while it’s still running.
Invoice from the job, take payment, and let the HST and the books keep themselves.
None of this is a software problem, which is exactly why software nobody built for contractors never fixed it. Here’s what we hear on every call.
Contrax is built on the same frontier AI behind ChatGPT, Claude, and Gemini — the tools you already trust every day. Not a gimmick chatbot bolted onto an accounting app. Real intelligence woven through your leads, your books, your crew, and your cash flow.
Three frontier models. One system running your company.
The names you already know — now doing the busywork you don't want to.
See everything Contrax connects to
This is the same assistant that runs inside Contrax. Describe the thing that’s costing you money and it’ll tell you, straight, whether Contrax fixes it and how.
Answers are generated by AI and can be wrong. Nothing here is legal, tax or accounting advice.
That's the part that wears you down — not any one app, but the seams between them. Here's what we did instead.
We're building the first AI-native operating system for small contractors — the 90% of the construction market that enterprise software still ignores.
Most contractor platforms connect to QuickBooks rather than handle the books themselves — accounting is hard, and an integration is the easier answer. It works, but it leaves your estimate in one place, your job costs in another and your books in a third, and reconciling them tends to become your Sunday.
Contrax has the books inside it. Bank feed, receipts, categories, HST tracked as you go and reported by quarter. A receipt you photograph on site lands against the job and the ledger in the same motion, because they're the same system.
An estimate you win becomes the project, carrying its budget with it. Clocked hours post against the phase they were worked on. A change order updates the contract, the schedule and the invoice at once. Nothing gets re-typed, because nothing was ever separate.
That's the difference between software that stores your business and software that runs it — good boxes are easy; the wiring between them is the hard part, and it's where we put the work.
Where a lot of tools put AI in an assistant you go and talk to, ours sits in the jobs themselves: writing the scope off your walkthrough, sorting receipts to cost codes, drafting the client email, watching a job's numbers and flagging a phase running hot.
You don't open it. It's already done the thing.
$150 CAD a month for the whole company. Not per user, so hiring your fourth guy doesn't cost you a subscription tier. No onboarding fee, no annual contract, and the AI isn't a premium add-on — it's the product.
Built in Oshawa, so it prices in CAD and handles HST the way the return actually asks for it.
The big platforms are built for companies with a full-time estimator and a project manager per job. This one was built in a renovation company, on real jobs. If you quote it, build it and invoice it, it fits.
Doing something that isn’t on this list? It probably still fits. The workflow is the same — quote it, schedule it, build it, bill it.
Questions
Contrax is construction management software for small renovation and trades contractors in Canada. It turns a walkthrough video into a priced estimate, then runs the job — CRM, scheduling, crew timesheets, job costing, time-and-materials billing, invoicing and HST-ready books — from one login.
Yes — that's exactly what it is. Contrax uses frontier AI models to turn a walkthrough video into a priced estimate, read receipts photographed on site, and draft client emails from your own job data. It's built for renovation and trades businesses of one to twenty-five people, at one flat price of $150 CAD a month for the whole company with unlimited users and AI included rather than metered. Most construction AI is priced for enterprise builders and most small-contractor tools have no real AI; Contrax sits in that gap on purpose.
CAD $150 a month, flat, for the whole company: unlimited users, every module, AI included. A launch offer gives the first three months at $49.99. There's a 7-day free trial with no credit card, and December is free every year.
Yes — 7 days, no credit card. You get the whole product, not a cut-down version. If it isn't earning its place by day seven, nothing is charged.
Renovation contractors, general contractors and trades businesses with roughly one to twenty-five people, mostly in Ontario and across Canada. It is not built for large commercial builders or enterprise construction.
Walk the job with your phone recording video or photos. Contrax identifies the scope, works out quantities and labour, and prices it from your own rate book — never a national average. You review and adjust before anything goes to the client.
No. One flat price covers the whole company. Per-seat pricing makes contractors leave half the crew off the software to save money, and then the software has half the data. Everyone gets a login.
Yes. Jobber is built for service trades and charges per user above its base plan; Buildertrend starts around $399 a month and is aimed at larger builders. Contrax covers estimating, CRM, scheduling, timesheets, job costing, invoicing and books for small crews at $150 flat.
Yes. A separate crew app lets field staff clock in and out against the job, add end-of-day notes and photograph receipts on site. You approve the hours, and they become payroll and job cost at the same time.
Yes, live. Labour at true burdened wage, materials from receipts, sub-trades and overhead, all against the estimate, so you can see the margin on every job while it's still running rather than after.
Yes. Set an hourly rate and a material markup on the job, then bill any date range for the hours and materials that haven't been billed yet. Invoices can be partly paid, and nothing can be billed twice.
Yes. Once an estimate is built, Contrax writes the contract from it with an editable payment schedule — deposit, progress draws, final — and sends it for e-signature. The signed schedule is wired to Invoices, so each milestone becomes an invoice with one tap. Estimate to contract to invoices in seconds, with nothing retyped.
You break the job into tasks on a timeline and drop them on the schedule against the crew. That schedule is what the crew see in the clock-in app, and as they finish work they cross tasks off on site. The timeline updates live, so you see what's done, what's late and what's next without calling anyone.
Yes. Prices are in Canadian dollars, HST is handled throughout, and the books module produces reports your accountant can work from directly. It was built by an Ontario contractor for Ontario contractors first.
Yes. Clients can see their estimate, contract, schedule and invoices, sign electronically, and on time-and-materials jobs watch a live running total so there are no surprises at the end.
Yes, every year, for every customer who is with us by the end of November. Contractors slow down over the holidays, so the December charge simply doesn't happen. Your data stays and your crew can still clock in. Eleven payments a year, not twelve.
Yes. Contrax asks your clients for a Google review when a job closes out, drafts email campaigns to past clients from the jobs in your CRM, keeps a Trade Circle referral directory of trades you trust, can buy and score paid leads through Bark against a spend cap you set. Everything is drafted for you to approve — nothing sends itself.
Yes — from a walkthrough video. Record the job on your phone and Contrax reads the room from the footage, sizes the work, and prices every line off your own rate card; a bathroom that took two hours of takeoff comes back in about two minutes. From drawings it reads dimensions, areas, schedules and quantities that are written on the plan, but it deliberately will not measure by eye or off a scale bar — a wrong quantity is worse than a missing one — so anything relevant but unlabelled is flagged for you to measure. Contrax does not track Construction Act holdbacks, and it is CAD and HST only.
Any time. Contrax is month to month with no annual contract. Your data is exportable whenever you want it, and we'll help you move it if you leave.
Cameron Ramsauer, who owns Ramsauer Renovations in Oshawa, Ontario. He built it to run his own contracting business and still uses it every day. Support is a phone number he answers: 437-972-2113.
No credit card to start. Create your account, confirm your email, and you're in. After 7 days it's $49.99/mo for your first 3 months, then $150/mo — cancel anytime.