Synhelm for general contractors and renovators
One app for the whole renovation, from walk-through to final invoice.
Renovations live and die on details: what the client asked for, which drawing is current, who was on site, and what's still owed. Synhelm keeps all of it on the job, where the office and the crew can both see it.
Free for up to 5 crew · no card to start · one price per shop
What gets in the way
The paperwork general contractors and renovators shouldn’t be doing by hand.
The quote is in one app, the photos in a camera roll, the hours on paper.
Appraisal, estimate, job, hours, photos, and invoice all live on one job, and each step carries into the next.
The crew is working off last month's drawing.
The blueprint reader keeps every revision, marks the newest as current, and shows what changed in red.
Chasing the client for updates and payments.
Send progress with photos built from the job (Pro), and see the balance on every invoice at a glance.
The tools you’ll use
Everything on the job, nothing you don’t need.
On-site appraisals
Walk the site before there's a client: notes, measurements, and photos. Turn it into a client and a draft estimate in one step.
Estimates that win work
Your logo on clean paper, with deposits, discounts, and tax. Email it from the app; clients approve and sign online, and replies come back to you.
Blueprint reader
Upload the PDF set and every page becomes a sheet to zoom and flip. Compare revisions, and mark up a copy to save, post in the job chat, or email.
Crew time clock
Crew clock in and out of a job from their own phone with a PIN — no app store, no email accounts. Switch jobs and take breaks in a tap.
Job photos
Photos land on the job, not in someone's camera roll. Mark them up on upload; they shrink on the phone so they send on a weak signal.
Invoices and payments
Turn the estimate into the job and the job into the invoice without retyping a line. Record partial payments and see what's owed.
Client updates
ProSend the client progress, what's next, and the latest photos, built from the job — plus a private progress page they can check.
Job costing
ProLabour at each person's rate plus expenses against the price, so you see the margin on every job while it's running.
Something you’ll never use? Turn it off in Settings and it leaves your menu. See every feature.
- Can I turn an estimate into a job and then an invoice?
- Yes. Accept the estimate and it becomes the job; when the work is done, the job becomes the invoice without retyping a line.
- Can subcontractors or crew see drawings?
- Crew assigned to a job can read its blueprints from their phone. You choose who may also mark them up.
- Do my crew need to download an app?
- No. They open one link or scan your QR code on any phone and sign in with a PIN. You can add it to their home screen so it opens like an app.
See it in the app
Real screens from Synhelm, not mock-ups.
Every project for a client in one placeTheir details, then every project: active first, finished below. 
Photos by day, type and jobSearch, filter by job or type, and pick a date range. 
Mark up a copy, never the sheetClouds, arrows, pins and notes, drawn on a copy of the sheet. 
Know what's owed at a glanceOverdue, due soon, paid, and the next step on every row. 
Saved where you can find itMarkups list beside the sheet, ready to send to the crew or the architect. 
Every drawing set, one tap awayEach set folds into one line per job. Tap it to see the sheets.
One app for general contractors and renovators, from the job site to the invoice.
Set up your shop in a few minutes. Add your logo, your crew, and your first job — the rest follows the job.