Manifold: gas engineer software for CP12s, jobs and renewals.
Manifold is gas engineer software that gets the CP12 done on the doorstep and the admin finished before you leave. Jobs, capture, certificates, renewals and invoicing, joined up in one mobile app.
The office sees every job and its next move.
While engineers work from the app, the office runs the day from the console. Every job is grouped by what it needs next, from arranging the visit to reviewing the evidence and sending the invoice.

Open it before the job. Close it before the admin.
One rail runs through the whole day. Every job, every property and every record branches off it, so you always know what's next and nothing gets re-typed.
See the whole day before you set off
Open Manifold over breakfast and your jobs are already in order: the next one up top, addresses, what's due, and anything overdue flagged. No printouts, no scribbled lists.
The whole history, already on the doorstep
Tap the job and the property opens with it: the customer, the appliances you serviced last year, past photos, notes and the last record. You walk in already knowing the boiler.
Records sent, renewals set, evening's yours
Every record is filed against its property, the landlord has their copy, and next year's renewal is already on the clock. The admin you used to take home is done by the time you're back in the van.
Point the camera. Manifold does the typing.
Two on-site tools that cut the worst of the data entry. Both follow one rule: auto-fill, never auto-trust. Manifold reads the numbers and suggests where they go; you check them against the appliance and confirm. Nothing unconfirmed ever reaches a record.
Read the analyser without writing a thing
Hold the phone up to your analyser screen. Manifold lifts the CO, CO₂ and ratio readings straight into the appliance check, ready for you to confirm.
Snap the data plate, build the appliance
Photograph the plate once and Manifold reads the make, model and GC number into the property's appliance register, ready and waiting on every repeat visit.
FlueScan and PlateScan suggest readings from a photo to save you typing. The Gas Safe registered engineer always reviews and confirms every value before it's saved. Manifold doesn't make safety decisions or judge whether an appliance is safe.
One CP12, from doorstep to inbox.
The whole job as the app runs it. Forty minutes on site, and nothing saved up for the evening.
- 08:31 · Open the job
One tap and the job's open.
The check opens with the property already on it: the tenant, last visit's result, and the appliance register waiting. Access gained, and you're straight into the work.
- 08:52 · Capture
Point the camera. The readings land themselves.
Scan the analyser and FlueScan reads CO, ratio, pressure and heat input straight into the check. Glance over the numbers, tap Apply, move on. Everything stays editable after.
- 09:04 · Check
Every appliance, checked and recorded.
Work down each appliance: flue flow, spillage, visual condition, safe to use. Photos attach to the job as you go, and anything wrong is raised as a defect there and then.
- 09:10 · Sign
Sign once. The CP12 builds itself.
Verdict in, signature on the screen, and the Landlord Gas Safety Record assembles from everything you captured. Nothing gets re-typed at the kitchen table tonight.
- 09:12 · Done
Done before you're back in the van.
Submit files the check on the spot: the tenant's copy is emailed when the property has their email, the landlord's is one tap from the record, and next year's renewal goes on the clock. No signal? It saves on the phone and syncs itself later.
Every job, property, appliance, photo and record, joined up.
Nothing lives on its own. A landlord links to their properties, each property to its appliances and history, each check to its photos, defects and the record it produced. Open any one and the rest is a tap away.
One system for the job, and everything around it.
From the first job of the day to the certificate, the renewal and the export, Manifold keeps the whole working day in one connected place.
On the job
Everything from the van to the doorstep. Your day in order, capture on site, and a system that keeps working when the signal doesn't.
- Your day, already in order
- Capture on site, not twice
- Scheduling & route
- Built for no signal
Records & compliance
Capture once and the paperwork takes care of itself: connected records, certificates that build from the check, and renewals that never slip.
- Every record joined up
- Certificates that write themselves
- Renewals on autopilot
- Send it before you've left
Run the business
The quiet back office. A tidy portal for customers, answers and reports on tap, and your data where you need it, solo or as a team.
- A portal for landlords & agents
- Manifold Assist, and Ask Manifold
- Exports & integrations
- One engineer or a firm
Quotes, payments & your tools
Win the extra work and get paid without chasing: quote on site, take payment on the doorstep, and keep Manifold in step with the accounts package, calendar, API and BI tools you already use.
- Quote on site, win the work
- Take payment on the doorstep
- In step with your tools
- Your data, open
Beyond the gas check
Breakdowns, installs, service contracts, parts and time: the rest of the work a gas business does, kept in the same place as its certificates.
- A record for every job
- Service plans
- Parts, purchasing & job profit
- Timesheets & tasks
Your jobs, in the order that makes sense.
See the day as a clean list or a calendar, with the next job always front and centre. Status moves with you (scheduled, on site, done) so the office sees progress without ringing you, and the Route Planner orders the day by travel and hands off to your sat-nav.
The renewal you'd have forgotten, surfaced early.
Manifold tracks every record's next-due date and lines up the work before it lapses: 60, 30 and 7 days out, then overdue. You see exactly who to chase and who to book, instead of finding out when the landlord rings.
Repeat gas safety work stops slipping through the cracks, and a year's renewals become a steady, predictable book of jobs.
Sign it once. It keeps moving.
A record's work isn't done when yours is. Every CP12 files itself, emails the tenant their copy when you hold their email, leaves the landlord's one tap away, and books its own renewal back into your year.
- Signed on siteFinished on the phone before you leave.
- Filed to the propertyWith its photos, readings and history.
- Landlord's copyOne tap sends link and PDF. Portal updated.
- Renewal armedNext year's visit, already in the diary.
Manifold keeps CP12 records, jobs and checks, properties, appliances, photos, defects, service history, renewal reminders, the landlord portal, customers, tenants, letting agents, quotes, signatures, FlueScan and PlateScan capture, offline working, the Route Planner, on-my-way messages, scheduled exports and record delivery in one connected system.
Same job. The evening back.
One engineer or a small firm, same calm system.
You're the engineer and the office. Manifold's the bit in between.
The work, the quotes, the calls, the chasing and the paperwork all land on you. Manifold helps during the job, not just after it, so you turn up prepared, capture as you go, and look every bit as professional as a firm ten times your size.
Everyone on the same records, without the radio calls.
Allocate jobs, see who's where, and let the office watch progress as it happens. Every engineer captures to the same shared properties and appliances, so the firm's records stay consistent no matter who's on site.
Built to protect your records.
Your records are your business's livelihood, so Manifold treats them that way, from the database up.
Tenant isolation by default
Every organisation's data is isolated at the database with row-level security, so one business can never read or change another's properties, checks or certificates.
Encrypted & access-controlled
Traffic is encrypted in transit (HTTPS), roles grant only what each person needs, and customer record links are secure, scoped tokens, not open doors to the system.
Built for UK GDPR
Built on UK data-protection principles: we collect only what a job needs, your records stay yours, and you can export them whenever you like.
Purpose-built for Gas Safe work
Designed around UK Landlord Gas Safety Records (CP12) and the Gas Safe registered engineer's judgement: a workflow and record-keeping tool, never a regulator.
Stored in London
Your records, photos and signatures are stored in London. A few services we use, such as AI photo analysis, process some data in the United States under contractual safeguards; each is listed on our privacy page.
More detail on our security page. Manifold is a workflow and record-keeping tool. Gas safety work must be carried out by an appropriately Gas Safe registered engineer.
The straight answers.
Who is Manifold for?
UK gas, plumbing and heating engineers: sole traders and small teams who do the work on site and want the admin to take care of itself. It's built around the way engineers actually work, not a generic office tool.
Is it built for UK gas engineers specifically?
Yes. Manifold is designed around UK gas safety work (properties, appliances, checks and Landlord Gas Safety Records) with British terminology throughout, not an American product with the labels changed.
What certificates and records can Manifold produce?
Manifold is built around the Landlord Gas Safety Record (CP12), LPG supplies included, and also produces Warning Notices (CP14), Gas Service Records and commercial gas safety records (CP16 and CP17), so the right record comes off the same check. Other jobs get their own record: Breakdown and repair, Commissioning (with the Benchmark checklist details), Decommissioning, or a job report. Every record reflects what the Gas Safe registered engineer captured and confirmed on site, and an issued record is never changed: a correction is a signed replacement, with the original kept.
Does it work on my phone?
Manifold is mobile-first. The whole job (your day, the property, capture on site and finishing the record) is built for the phone in your pocket, in the van, the kitchen, the loft and the cupboard. The office pages work on a phone too: forms and lists use the full width of the screen.
Does Manifold work offline?
Yes, for the work on site. Put it on your home screen and, whenever your job list loads with signal, the phone saves today's jobs in full, plus the coming 7 days' jobs up to 20 jobs in all. With no bars you can open those jobs, capture the check and submit it, and everything syncs automatically once you're back online. FlueScan and PlateScan need signal to read a photo, and the office pages (customers, properties, invoices) need a connection.
Can sole traders use it?
Absolutely. It's built for the one-person business as much as a team: turn up prepared, capture as you go, and send branded records the moment you're done.
Can small teams use it?
Yes. Allocate jobs, see who's where, and keep every engineer capturing to the same shared properties and appliances so the firm's records stay consistent.
How does the camera capture work?
FlueScan reads your flue gas analyser screen and PlateScan reads an appliance data plate, both from a photo, and suggest the values for the check. They save you typing. They don't make decisions. Reading the photo needs signal; with none, type the values in.
Does the engineer confirm captured data?
Always. Manifold works on 'auto-fill, never auto-trust': any value read from a photo is a suggestion that you review and confirm against the appliance before it's saved. Nothing unconfirmed reaches a record.
Can I send records to landlords, agents and tenants?
Yes. When a record is finished you can send the landlord or letting agent their copy and deliver the tenant's, with secure links and PDFs and no re-typing. From your phone, Share or WhatsApp sends the certificate's secure link too. Renewals are then tracked so next year's job is lined up early.
Can I send quotes and take payment?
Yes. Build a quote from the defects and parts on a job, send it for the customer to accept in their portal, then send deposit, interim or final invoices. The final deducts what has already been invoiced. Engineers can also review and send an eligible invoice from their completed job report on web or native. With Growth or above and Stripe connected, confirmed invoice delivery unlocks a payment link and QR code for the full outstanding balance. Card payments go into your own Stripe account.
Does Manifold work with my accounts package and calendar?
On the Growth plan and above, Manifold pushes your customers, the quotes you send, each invoice with its lines when it is first issued, and eligible payments recorded against those invoices to Xero, QuickBooks Online or Sage. CIS settlement as separate cash and tax-withheld ledger entries in Xero or QuickBooks is being rolled out, so ask us before relying on it; until then, and always in Sage, CIS receipts are entered by hand. Native provider CIS reporting is separate. Payment reversals in Xero and QuickBooks are being rolled out too; Sage reversals need manual entry. A sent quote arrives as a quote (an estimate in QuickBooks Online), never as an invoice, so only the issued invoice bills your customer. Manifold also checks Google Calendar for clashes when you schedule. You connect each one in Settings and can disconnect at any time.
Is there an API or a way into Power BI?
Yes. Manifold has a read-only API with scoped keys, signed webhooks for events like a certificate being generated or a renewal falling due, and a Power BI / OData connector, so your properties, appliances, checks and certificates flow straight into your own dashboards.
Does Manifold make compliance or safety decisions?
No. Manifold is a workflow and record-keeping tool. Gas safety work must be carried out by an appropriately Gas Safe registered engineer, and the professional judgement on site stays with you. It doesn't guarantee compliance.
Will you help me get set up?
Yes, and it’s free while Manifold is in early access. Send us your customer spreadsheet, a Gas Engineer Software export or a photo of your diary and we’ll load it in for you within one working day. Want a hand with your first job? Ask for a call and we’ll ring you.
How much does Manifold cost?
Manifold starts at £15 per user, per month, plus VAT. Starter is £15, Growth is £20 and Scale is £25 per user per month; Enterprise is priced on application. Pay annually and you're charged for ten months instead of twelve. Every plan includes the core: jobs, capture, records, CP12s and renewals. What changes between plans is how many users, records and storage you get (the owner, office staff and engineers each count as a user; landlords and agents using the client portal are free), plus some features: payments, accounting sync, Manifold Assist, scheduled exports and Power BI start on Growth, and AI insights across your jobs come with Scale. Texts to your customers, such as a renewal reminder to a tenant, are included too: Growth has 50 texts per user a month and Scale 100 texts per user a month, shared across the team, and Starter has none. A free trial includes 20 texts a month in total. We're in early access, so these are introductory rates, and our earliest customers, our Founding Members, keep them for life.
Be one of the first engineers on Manifold.
Sign up in minutes and start on your own jobs today: a free 60-day trial, no card. Our earliest customers become Founding Members and keep today’s price for life.