Every bit of paperwork after an install, on one sheet.

Free. One A4 page per job, every kind of install.

A solar job commissioned today, Thu 12 Nov:

Day 0Notify regsThu 12 Nov
Day 14MCS certThu 26 Nov
Day 28DNOThu 10 Dec
Day 30Regs certSat 12 Dec

Solar PV sign-off sheet

Commissioned today, day 0Thu 12 Nov 2026

After commissioning

MCS certificate on the MID
On the redeveloped scheme, declare the financial protection product on each certificate.
Day 1430 once you're on the new MCS schemeThu 26 Nov 2026
G98 Form B to the DNO
On G99: send Form A3 to confirm what was fitted, and keep the DNO's approval on file.
Day 28Thu 10 Dec 2026
Building regs certificate to the homeowner
Your scheme issues it from your notification. You notify before handover; 30 days from completion is the legal limit for the certificate.
Day 30Sat 12 Dec 2026Weekend, so aim for Fri 11 Dec

What only the kit does.

The Job Clock in your kit fills in each sheet for the job in front of you, and does this too.

Voucher expiry and Ofgem replies
Type the day a BUS voucher was issued and the Job Clock adds the day it runs out. Ofgem asks a question? It adds your reply-by date.
Voucher issued today. ExpiresFri 12 Feb 2027
Ofgem asked today. Reply byThu 26 Nov 2026
Every date in your calendar
One tap makes a calendar file for the job, with a reminder 3 days before each date. Dates that cost grant money get an early one too.
BUS application, due Fri 12 Mar 2027
Reminder, 14 days beforeFri 26 Feb
Reminder, 3 days beforeTue 9 Mar
Weekends moved to Friday
A deadline that lands on a Saturday or Sunday goes in your calendar on the Friday before, with the real due day in its title.
Building regs certificate to the homeowner, due Sat 12 Dec
In your calendar onFri 11 Dec
Your firm's name on the sheets
Print any job's sign-off sheet with its dates and address filled in, and your firm's name and phone at the top. The handover pages and the 31 March sheet too.
Ambleway Heat & Solar
01632 960418
Heat pump sign-off sheet

What's in the kit.

Seven things, free, for heat pump, solar, battery and EV charger jobs.

The Sign-off Kit laid out on a desk: sign-off sheets, the tracker, the March sheet, a shot list on a phone and the day tape

Job ClockType a commissioning date, get every deadline with its source, straight into your calendar.
Sign-off sheetsOne A4 page each for heat pump, solar PV, battery and EV charger jobs. Print or fill in on screen.
Site shot listThe photos to take before you leave site, as a lock screen for your phone.
Sign-off TrackerA spreadsheet with one row per job and the BUS grant money still to come back at the top.
Handover pagesA cover with your firm's name, what's in the pack, and a sheet for the customer's fridge.
31 March 2027 sheetOne page for customers at quote stage, plus your own checklist for the new MCS scheme.
Rule-change updatesWhen a rule in the kit changes, we update it and send one short email saying what changed.

A real look inside.

The heat pump sign-off sheet, at full size: the part after commissioning, with the dates for a job commissioned today. Air source heat pump on the Boiler Upgrade Scheme, current MCS scheme.

Heat pump sign-off sheet

Commissioned today, day 0Thu 12 Nov 2026

After commissioning

MCS certificate on the MID^1,2,3
On the redeveloped scheme, declare the financial protection product on each certificate.
Day 1430 once you're on the new MCS schemeThu 26 Nov 2026
DNO notification⁴
New maximum demand of 60A or less and criteria met: heat pump connection form.
Day 28Thu 10 Dec 2026
Building regs certificate to the homeowner⁵
Through your competent person scheme. Counts from completion; your scheme may want it sooner.
Day 30Sat 12 Dec 2026Weekend, so aim for Fri 11 Dec
BUS voucher application, if not made before commissioning⁶
Later applications aren't eligible.
Day 120Fri 12 Mar 2027
Redeem the voucher before it expires⁶
3 months from issue, 6 for ground source. You need the MCS certificate number, BUS account ID and voucher ID.
Expires
Answer any Ofgem question in time⁶
At least 14 days from their request. Use the date in their email.
Reply by

One A4 page per job: before install, on the day, after commissioning, and the handover pack.

Every line has a source.

14days
MCS certificate on the MID
Create the MCS certificate on the MCS Installations Database (MID) no later than 14 days after commissioning. On the redeveloped MCS scheme the window is 30 days.
MCS, A compliance reminder for MCS certificates, paragraph 1, checked 7 November 2026
28days
DNO notification, where you connect then notify
Where you connect and then notify, tell the network operator (DNO) within 28 days: G98 Form B for solar and batteries under the limit, or the heat pump and EV charger form where the criteria are met.
MCS, Notifying DNOs, G98, battery storage, heat pumps and EV sections, checked 7 November 2026
30days
Building regs certificate to the homeowner
Through your competent person scheme, notify the council and give the homeowner a certificate of compliance within 30 days of the work being completed.
GOV.UK, Building work, replacements and repairs to your home, sections 3 and 5, checked 7 November 2026
120days
BUS voucher application, if you commissioned first
If you commissioned before applying for the voucher, the application must be properly made within 120 days of the commissioning date. Late applications aren't eligible.
Ofgem, Boiler Upgrade Scheme: Installer Guidance V5.2, paragraph 3.13; for off-gas jobs, 7.09, 7.13 and 7.14, checked 7 November 2026

2026 changed a lot of this. When a rule in the kit changes, we update it and tell you.

Who made it.

Abdul Rehman AsgharFounder, Hexaa

We build paperwork systems for installers, around the software they already use. For a UK solar, battery and heat pump installer, we built a Copilot agent that checks each job's photos and forms, asks the engineer about anything missing, and prepares the paperwork for one person to approve. How we built it

Get the Sign-off Kit.

Free. Just your email, and it opens here straight away.