SJAI One job.
One place.
Everyone clear.
The construction app for builders, their crews and their customers. Site photos, plans and drawings, updates, agreed extras and customer questions, together on your phone instead of lost in WhatsApp.
No card needed. Takes about a minute, on any phone or computer. Built and used by a working Liverpool builder.
You know the problem
The photo that is on someone's phone. The extra that was agreed on a call and never written down. The customer asking "did you see my message?" for the third time.
Updates get lost
Messages and photos scatter across WhatsApp threads, texts and camera rolls.
Extras get disputed
What was actually agreed, at what price, and did the customer accept it?
You become the go-between
Everything has to come through you to be found, passed on and chased.
How it works
Each person gets a simple link for their part of the job. No training needed.
You
Log the enquiry, book the visit into Google Calendar, and turn it into a job when you win it. One view of questions, extras and payments to check, across every job.
Your crew
One site-team thread per job. Open an assigned job, add a photo or a note in a few taps. They only see what they need.
Your customer
Their own job page: site photos, questions, and extras approved in writing at the exact price.
Demonstration screens using invented jobs, names and figures.
Get the app
Three steps on any phone or computer.
Android phones Your phone
Get it on Google Play
- Tap Get it on Google Play, or search “SJAI Job Hub” in the Play Store.
- Tap Install, then Open.
- Builders: tap Create your business account. Crew and customers: open the link your builder sent you.
Available in the UK and Ireland. Pro is paid through Google Play on Android, or on the website for everyone else.
iPhone and iPad Your phone
Add it from Safari — no App Store needed
You are inside Instagram, Facebook or TikTok. Tap the ··· menu and choose Open in Safari (or Open in browser) first.
- In Safari, open Job Hub sign-up and create your business account. Crew and customers: open your builder’s link in Safari.
- Tap the Share button — the square with an arrow pointing up.
- Scroll down, tap Add to Home Screen, then Add. Job Hub now has its own icon and opens full screen.
Add to Home Screen only works from Safari. Allow notifications when Job Hub asks, so you see new messages.
Windows PC, laptop or Mac Your computer
Install it from Chrome or Edge
- In Google Chrome or Microsoft Edge, open Job Hub and sign in, or create your business account. Crew and customers: open your builder’s link.
- Chrome: click the ⋮ menu (top right), then Cast, save and share, then Install Job Hub.
Edge: click the ··· menu (top right), then Apps, then Install this site as an app. - Click Install. Job Hub opens in its own window, and you can pin it to your taskbar.
Install once you are signed in and looking at your jobs, so the app opens straight to them. If an install icon shows at the right of the address bar, clicking it does the same thing. Mac with Safari: File, then Add to Dock.
Site teams and customers
Nothing to sign up for
- Your builder sends you a link by WhatsApp, text or email.
- Open it. You only see the job or jobs you are on.
- Optional: install the app or add it to your Home Screen, so it is one tap away.
Customers only ever see their own job, and only the documents the builder chooses to share.
Start free. Upgrade when it earns its keep.
Every new account gets 14 days of Pro, no card needed. After that you stay on Free unless you choose to upgrade.
Free
One active job and up to three workers.
Pro
Unlimited jobs, up to ten workers and the supervisor link. Or £290 a year + VAT.
Founding Builder
Pro for the first 15 building businesses, fixed while you stay subscribed. By invitation — ask below.
Team
Unlimited jobs, unlimited workers and the supervisor link, plus snagging and QA on drawings and site photos.
In final testingComing soon: the Team plan
For builders running several sites and bigger crews. Snagging is in final testing and not live yet.
- Unlimited jobs and unlimited workers, each with their own link
- A supervisor link across every job
- Tap a drawing or a site photo to pin a snag, then describe and assign it
- Track each snag from open to fixed to accepted, with before and after photos
- A printable snag report you can save as a PDF
The video is a demonstration using invented jobs, names and photos.
Built from real site work
Job Hub started inside SJ Developments, a Liverpool building firm that does extensions, renovations and school works. We built it because we were tired of chasing ourselves around site, and we run our own jobs on it.
Founding Builder places
Want Pro at £15 a month, fixed while you stay subscribed? Tell us a little about you and we will email to confirm a place. Nothing is charged until you agree. You can start free straight away in the meantime.
This opens your email app with your details ready to send to support@sjai.uk. Nothing is sent until you press send in your email app.
How we use your details
We use what you send only to reply about SJAI Job Hub and to confirm a Founding Builder place. We do not sell or share it. We keep it until you ask us to stop, or until the offer closes and you have not taken a place. To see, correct or delete your details, or to stop emails, write to support@sjai.uk. You can also complain to the Information Commissioner's Office at ico.org.uk.
Data controller: SJ Developments North West Ltd, 1 Fields End, Huyton, Liverpool L36 5YQ. Registered with the ICO.
Questions
Is it available now?
Yes. Android phones can install it from Google Play (UK and Ireland). iPhone and iPad users add it to their Home Screen from Safari. On a computer, install it from Chrome or Edge. Any builder can create an account and start free.
Is there an App Store version for iPhone?
Not yet. On iPhone you open Job Hub in Safari and tap Share, then Add to Home Screen. It gets its own icon and opens full screen, like any other app.
Does my crew or my customer need an account?
No. They open the link you send them. They can install the app or add it to their Home Screen if they want it one tap away.
Who can see my jobs?
Only the people you give a link to, and only the job or jobs you assign them. Customers see their own job and no one else's. Prices, invoices and balances stay with you unless you choose to share them.
Do I need a card to start?
No. Every new account gets 14 days of Pro free, then moves to the Free plan unless you choose to upgrade on the website.
Does it check payments with my bank?
No. A customer can tell you they have paid, but you check your bank and mark the payment as received yourself.
Already have an account?
Sign in here, or open the app.