01
Plumbers & heating engineers
Moved radiators, extra pipework, boiler changes and repairs discovered after opening up.
For UK plumbers & heating engineers
Record extra work.Get customer approval.Avoid payment disputes.
Log the extra and its price, send your customer a simple approve or decline request, and keep their decision with the job. Less time explaining yourself, fewer arguments over the bill, and a written record that protects your income.
£19/month including VAT after your 14-day free trial. Cancel anytime. The demo uses sample data and needs no account.
Photo evidenceGPS + timeOne-tap approvalSave / print PDF
ExtraAgree · Example data
£4,820 captured this month
Approved
£3,950
Awaiting
£870
This week
£450
VAR-008 GPS recorded
Radiator move · Smith Bathroom
14 Sep 2026 · 10:42 · evidence locked to this extra
Approval record
Move radiator to opposite wall
Original work
Radiator stays on existing wall
Extra work
Reroute pipework + labour
Time impact
+1 working day
Extra price
£450
Approved by Mrs Smith · permanent evidence saved
No login
needed for your customer
1 tap
for the customer to approve
48h
first reminder for emailed requests
£19
per month including VAT
The problem
The job changes. Your paper trail shouldn't disappear.
Verbal changes, scattered WhatsApps and camera-roll photos make it hard to prove exactly what was requested and agreed later on.
ExtraAgree turns every extra into one clean, time-stamped approval record.
Capture the evidence
Photos, job, variation, date, time and device GPS stay together instead of disappearing into a camera roll.
Lock the agreement
Each approval is tied to the exact version the customer saw, with later revisions preserved separately.
See the money
Track approved value, money waiting with customers and extras still sitting unsent.
Finish with proof
Turn the job history into a professional evidence pack instead of rebuilding the story months later.
The ExtraAgree workflow
From extra work to a clear agreement in three steps.
Built around the moment work changes on site, not around a heavy office CRM.
- 1
Record and price the extra
Describe the change, add the price and any photos, and show the impact on the job.
- 2
Ask your customer to agree
Email the approval request or share its link. Your customer reviews the details and responds on their phone, with no account needed.
- 3
Keep the decision and evidence
The customer's response stays tied to the exact version they reviewed, alongside the job's evidence. Later revisions do not overwrite it.
01
Industries we serve
Built for trades where the job can change after work starts.
ExtraAgree is designed for small UK trade businesses that need a fast way to record an extra, prove why it happened and get a clear customer decision before the paperwork becomes a dispute.
02
Electricians
Extra sockets, lighting points, cable runs and faults found once the job is underway.
03
Builders & renovators
Layout changes, extra plastering, remedial work and customer-requested additions.
04
Roofers
Extra tiles, rotten battens, leadwork, chimney repairs and hidden timber problems.
05
Landscapers
Additional paving, drainage, retaining walls and unforeseen ground conditions.
06
Bathroom installers
Moved sanitaryware, extra tiling, niches, pipework and hidden floor repairs.
07
Kitchen installers
Extra units, appliance moves, plumbing changes, electrical points and upgrades.
02
Lost Extras Calculator
How much extra-work value could be sitting at risk?
Use your own rough numbers. This is not a promise of recovered revenue—it simply shows the value of extras you estimate are vulnerable when approval is unclear or missing.
Your illustration
8 extras × £350 average × 25% at risk.
Estimated extra-work value at risk
£700
per month
Over 12 months, the same assumptions equal:
£8,400
Illustration only. Actual outcomes depend on your jobs, customers, contracts, pricing and working practices.
03
Real-world extra-work examples
The expensive problems are often the small changes nobody writes down properly.
These are typical types of trade variations ExtraAgree is built to record. The sample values below are illustrative, not customer results.
Plumbing£450
Move radiator to the opposite wall
EvidencePriceApproval
Electrical£240
Add two socket outlets after first fix
EvidencePriceApproval
Building£380
Additional plastering after opening the wall
EvidencePriceApproval
Roofing£520
Replace additional damaged tiles and battens
EvidencePriceApproval
Landscaping£900
Extend the agreed paving area
EvidencePriceApproval
Bathroom£650
Add a tiled niche not included in the quote
EvidencePriceApproval
04
Interactive approval demo
See how simple the customer decision can be.
There is no app for the customer to install and no account to create. Try the demo approval below—nothing is sent or stored.
Exact versionTime-stampedQuestion / change options
Approval request · Version 1
Bathroom renovation · 14 September 2026
Extra work
Move radiator to opposite wall
Relocate the existing radiator to the newly agreed position, including additional pipework alterations, fittings, testing and labour beyond the original scope.
Extra price
£450
Evidence attached
Ask a questionRequest changeDecline
Demo only — nothing is sent, charged or stored.
05
ExtraAgree vs WhatsApp / verbal agreements
Messaging is useful. It is not the same as a clean variation record.
ExtraAgree does not replace talking to your customer. It gives the important change, evidence, price and decision one dedicated place to live afterwards.
What you need
ExtraAgree
WhatsApp
Verbal
Clear scope and price in one record
ExtraAgree:Built in
WhatsApp:Can be scattered
Verbal:No record
Approval tied to the exact version shown
ExtraAgree:Built in
WhatsApp:Manual to prove
Verbal:No
Photos, date, time and GPS kept together
ExtraAgree:Built in
WhatsApp:Separate messages
Verbal:No
Automatic reminder if approval is ignored
ExtraAgree:Built in
WhatsApp:Manual follow-up
Verbal:Manual follow-up
Permanent approval trail and evidence pack
ExtraAgree:Built in
WhatsApp:Manual rebuild
Verbal:No
WhatsApp can still be used to share an ExtraAgree approval link. The difference is that the decision itself stays attached to the job and exact variation version.
06
Trade variation template library
Start with trade-specific wording instead of typing every extra from scratch.
ExtraAgree already includes built-in quick templates for seven trades. Choose a trade below to preview some of the template names currently available inside the Add Extra flow.
Move radiator
Tap it in ExtraAgree to prefill professional scope wording and time impact, then add the job-specific price and review before saving.
Upgrade radiator
Tap it in ExtraAgree to prefill professional scope wording and time impact, then add the job-specific price and review before saving.
Additional pipework
Tap it in ExtraAgree to prefill professional scope wording and time impact, then add the job-specific price and review before saving.
Boiler relocation
Tap it in ExtraAgree to prefill professional scope wording and time impact, then add the job-specific price and review before saving.
The template never guesses the price. The contractor still reviews the wording, job-specific cost, VAT and time impact before the extra is saved or sent.
07
Customer confidence
A better approval experience should feel clear for the customer too.
The strongest evidence is not created by making the customer jump through hoops. ExtraAgree keeps the decision page simple while preserving the detail behind it.
Exact scope
The customer sees what is changing rather than approving a vague message.
Clear price
The extra value is shown alongside the work before the decision is made.
Supporting evidence
Photos can show why the change or additional work is needed.
They can respond
Customers can approve, ask a question, request a change or decline the exact version shown.
No customer login
The secure approval page opens from the link without requiring a customer account.
Permanent decision trail
The approval stays attached to the exact variation version for the contractor's records.
The customer sees
One clear decision, not a chain of detective work.
What changed
What it costs
Any time impact
Supporting photos
Their response options
See it in action
Designed for a tradesperson holding a phone on site.
Capture the change while it is in front of you, then send a clean approval instead of typing the whole story again that evening.
ExtraAgree in actionProduct walkthrough
Proof, not promises
Everything important stays attached to the extra.
- 01
Money Leak Detector
Spot priced drafts, unsent extras and site evidence that may need attention before work slips past approval. ExtraAgree shows real recorded values and keeps unpriced signals separate instead of guessing.
- 02
Don’t Start Yet protection
Pending or declined work gets a clear warning so the approval status is visible before you start the extra.
- 03
Visual Variation Preview
Mark up a site photo to show the intended change before approval. The preview stays tied to that exact variation version so the customer can see what they are agreeing to.
- 04
On-site QR approval
Show a secure QR code on site so the customer can open the exact current variation, confirm their name and record their decision there and then.
- 05
Multi-person approval
When more than one person needs to agree, give each required approver their own secure approval route and keep the overall variation pending until the required decisions are complete.
- 06
Build the Story timeline
See the variation as a chronological evidence trail — from the request and versions through sending, viewing, decisions and completion evidence.
Pricing
Serious evidence software. Simple £19 pricing.
Full access for 14 days free. Then £19 a month including VAT, with cancellation from your account.
See what's includedExtraAgree
£19 / month
Including VAT · 14-day free trial
Built to protect more than it costs. No customer login required.
FAQ
Common questions
- Does my customer need an ExtraAgree account?
- No. They open the link you send and approve or decline from their phone or computer.
- What happens after the 14-day free trial?
- The subscription is £19 a month, including UK VAT, unless you cancel before the trial ends.
- Can I cancel?
- Yes. You manage or cancel your subscription yourself from the Subscription page in your account.
- Is ExtraAgree an invoicing or accounting system?
- No. It is focused on recording additional work, getting it approved and keeping the supporting evidence together. You still invoice the way you already do.