Can Fixxa issue a CP12?

No. CP12 landlord gas safety certificates must be issued by a Gas Safe registered engineer through their own certification. Fixxa stores the PDF and delivers it with the invoice, so the customer or letting agent gets both in one message.

Do I have to charge VAT?

Only if you are VAT-registered. Fixxa lets you turn VAT on or off, set a default rate, and apply it per line or per invoice. If you are under the VAT threshold, keep it off.

How fast do I get paid?

Card payments through Fixxa typically arrive in your bank within 2 business days. Same-day payouts are available at 1% (minimum 30p) if you need the cash before the weekend.

Does Fixxa help with Making Tax Digital?

Yes. Every quote, invoice and payment is a digital record. When quarterly updates apply to you, your turnover totals are ready to submit or hand to your accountant.

How much does Fixxa cost?

£19.99/month monthly, or £190/year (2 months free). 14-day free trial, no card needed, cancel anytime.

For UK gas engineers

Invoicing app for UK gas engineers who work Gas Safe hours, not office hours

Speak the boiler make, flue kit and labour on the doorstep. Fixxa drafts a compliant-looking quote before you have finished the mug of tea. Send it on WhatsApp with a faster payment link, then move on to the next call.

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Quick answer

Fixxa is a voice-first invoicing app for UK Gas Safe engineers. Dictate boiler installs, service calls, landlord CP12 checks and emergency callouts. Fixxa generates a professional quote or invoice with parts and labour split out, sends it on WhatsApp with a card payment link, and keeps every job as a digital record for MTD.

Why gas engineers choose Fixxa

Built for UK Gas Safe registered engineers
Dictate boiler installs, services, breakdowns and CP12 checks
Attach CP12 or job report to the invoice on WhatsApp
Faster payment links so customers pay by card the same day
Digital records ready for Making Tax Digital for Income Tax
£19.99/month or £190/year, 14-day free trial, cancel anytime

How it works

1. Speak the job

Dictate the boiler model, flue kit, gas rating, labour hours and any callout. Fixxa drafts a quote or invoice with parts and labour separated.

2. Attach the paperwork

Send the CP12 landlord gas safety certificate or benchmark commissioning report alongside the invoice on WhatsApp in one message.

3. Get paid

Faster payment links via Stripe. Card payments typically land in your bank within 2 business days. Same-day payouts available.

Key benefits

Callouts priced consistently

Save a standard callout line item so 2am emergency work is quoted the same way every time, not made up on the doorstep.

CP12 season without the paperwork panic

Landlord CP12s go out with the invoice in one WhatsApp message. Letting agents love it, and you get paid faster.

Boiler swaps quoted before you leave

Speak parts, labour, flue and system flush. The customer has a professional quote before you have driven off the drive.

MTD-ready digital records

Every job is stored. When quarterly updates land, your income totals are ready to hand to your accountant.

Built for gas engineers

Combi and system boiler installs
Annual boiler services and warranty work
Landlord gas safety certificates (CP12)
Emergency out-of-hours callouts
Cooker, hob and gas fire installs
Commercial catering gas work

Real gas engineers jobs, quoted by voice

Combi swap, 3-bed semi

Dictate the model, flue kit, system flush and 6 hours labour. Fixxa splits parts and labour, adds VAT if you charge it, and sends a branded quote via WhatsApp before you leave the driveway.

Landlord CP12 for 12-property portfolio

One line item per property, agent as the billing contact, single invoice for all 12 checks. Attach each CP12 PDF to the WhatsApp reply.

2am no-heat callout in December

Standard callout fee, diagnostic time, replacement PCB, one hour labour. Customer taps the payment link on their phone while you write up the job.

Cooker install with disconnect certificate

Line-itemise disconnect of old, install of new, gas soundness test and the certificate. Customer sees exactly what they paid for.

Common quoting and invoicing mistakes

Forgetting the callout on the invoice

Emergency work needs the callout fee itemised separately or customers push back. Save it as a standard line item so it goes on every time.

Not asking for a deposit on boiler swaps

Parts sit in your van waiting. A deposit invoice with a card link means the money is with you before the boiler is.

Loose language on the certificate description

Write CP12 or Landlord Gas Safety Record properly. Vague wording invites payment queries from letting agents.

Sending the CP12 separately to the invoice

Merge them into one WhatsApp message. Fewer chases, quicker payment.

Practical workflow tips

Save common boiler models (Worcester, Vaillant, Ideal) as line items so quotes go out faster
Set a fixed emergency callout rate so out-of-hours pricing is never argued over
Attach a photo of the completed install alongside the invoice on WhatsApp
Reconcile Stripe payouts weekly so your MTD records stay clean

Trust and compliance

Gas Safe registration and certification remain the engineer's responsibility. Fixxa does not issue or replace CP12s or benchmark records — it stores and delivers them alongside professional invoices, and keeps the digital paper trail HMRC wants for MTD for Income Tax.

Simple pricing

Fixxa is £19.99/month or £190/year (2 months free). Includes voice quoting and invoicing, faster payment links, reminders and exports. 14-day free trial, cancel anytime. See full details on the pricing section.