Construction payments, finally under control.
Track valuations, certify applications, manage retention. The platform that connects project managers and contractors.
14-day free trial. No credit card required.
The problem
Spreadsheets weren't built for construction payments
Scattered invoices
Invoices buried in email. Payment status tracked in your head. Contractors chasing you for updates.
Manual valuations
Percentage complete on paper. Retention by hand. One mistake compounds across every payment.
Zero visibility
No single view of costs. Budget vs actual is a mystery until it's too late.
One missed notice. One expensive mistake.
The Construction Act requires payment and pay-less notices within strict windows. Miss a deadline and the contractor can claim the full applied sum.
How it works
Four steps to controlled project payments
Set up your project
Add contractors and BoQs. Upload contracts and AI extracts key terms.
Contractors submit valuations
Percentage complete per line item, invoice attached. You get notified.
Review and certify
Adjust claimed figures. Certify. Payment certificate auto-generates. Deadline tracking keeps you within your Construction Act notice windows.
Track payments
Mark paid, contractors notified. Retention tracked to release.
Set up your project
Add contractors and BoQs. Upload contracts and AI extracts key terms.
Contractors submit valuations
Percentage complete per line item, invoice attached. You get notified.
Review and certify
Adjust claimed figures. Certify. Payment certificate auto-generates. Deadline tracking keeps you within your Construction Act notice windows.
Track payments
Mark paid, contractors notified. Retention tracked to release.
Features
Everything you need to manage construction payments
See every project at a glance
Map view, financial aggregation, and project cards give you full visibility across your portfolio.
- Multi-project overview
- Real-time financial totals
- Geographic map view
Contractors submit, you certify
Claimed vs certified comparison with full audit trail. No more email chains.
- BoQ progress input per line
- Side-by-side review
- Complete audit trail
Central hub for all invoices
AI reads invoices, extracts key data, and tracks status from received through to paid.
- Auto-extraction of invoice data
- Status workflow tracking
- PDF preview and download
Never miscalculate retention
Per-contract retention with automatic calculation and scheduled releases.
- Configurable retention percentage
- 50/50 PC and defects release
- Full release schedule view
Let AI do the data entry
Upload contracts and invoices. AI extracts terms, payment schedules, and line items.
- Pre-fills forms automatically
- Confidence scoring on extractions
- Graceful fallback to manual
Their own dashboard
Contractors get a simple interface to submit valuations and track payment status.
- Simple, focused interface
- Real-time payment status
- Payment acknowledgement
Built for UK Construction Law
BuildFlow tracks your Construction Act payment notice and pay-less notice deadlines automatically, keeping you compliant with the Housing Grants, Construction and Regeneration Act 1996 (as amended 2011) on every project.
Mobile
BuildFlow on the go
The contractor portal in your pocket. Submit valuations from the site, capture progress photos, and get notified the moment a payment is certified.
Submit valuations from the site
Mark up the BoQ, add comments, and submit a valuation in minutes from your phone. No more end-of-week paperwork.
Capture progress and snags
Take photos of completed works or defects, attach them to the relevant line item, and keep a clean visual record of every claim.
Push notifications
Know the moment a payment is certified, a variation is approved, or a contractor needs your input.
Pricing
Simple, transparent pricing
14-day free trial on all plans. No credit card required.
All prices exclude VAT.
Homeowner
For homeowners managing their own build
You're doing a loft conversion, extension, or renovation. Keep every invoice, valuation, and variation in one place.
- 1 active project
- Up to 5 contractors
- Invoice & valuation tracking
- Retention management
- BoQ progress tracking
- Variation log
- Document storage (1 GB)
Pro
For PMs and small developers running multiple projects
Running several domestic jobs? Give your contractors their own portal to submit valuations and invoices while you keep oversight of everything.
- Up to 5 active projects
- Unlimited contractors
- Full contractor portal
- Valuation certification workflow
- Variation log & approval
- Retention release management
- Up to 3 PM users
- Document storage (10 GB)
Developer
For developers and contractors running multiple sites
Portfolio-level oversight across all your live projects. Institutional-grade admin with CIS tracking and cross-project reporting.
- Unlimited active projects
- Portfolio financial dashboard
- CIS tax deduction tracking
- Variation log & approval
- Advanced retention & defects tracking
- Custom branding on contractor portal
- Unlimited PM users
- Document storage (50 GB)
Enterprise
For volume builders and firms with bespoke needs
Tailored to your workflows, compliance requirements, and reporting. White-label portal, API access, and dedicated support.
- Everything in Developer
- White-label contractor portal
- API access
- SSO / single sign-on
- Xero / Sage / QuickBooks integration
- Dedicated account manager
- SLA with guaranteed response times
All plans include: bank-grade encryption, UK data residency, free contractor access.
How BuildFlow compares
| Feature | Spreadsheets | Procore | Payapps | BuildFlow |
|---|---|---|---|---|
| Price/month | Free | £500+ | Enterprise | From £29 |
| Setup time | N/A | Weeks | Days | 30 mins |
| UK Construction Act | Partial | |||
| AI processing | ||||
| Contractor portal | ||||
| Retention mgmt | Partial | |||
| Certification | ||||
| Certificates |
Less admin time
To submit a valuation
Payment status tracking
“BuildFlow cut our monthly payment admin in half. We used to spend days reconciling spreadsheets.”
James P.
Residential Developer
6-unit scheme, South London
“Our contractors love the portal. No more chasing invoices or asking where their payment is.”
Sarah K.
Project Manager, Mitchell Construction
3 active projects
“The retention tracking alone is worth it. We always know exactly what's held and when it's due.”
Mark T.
Property Developer
Rear extension, North London
Frequently asked questions
Under 30 minutes. Add your project details, upload contracts, and our AI extracts the key terms automatically. You can be running your first valuation the same day.
The contractor portal is deliberately simple: log in, enter percentage complete, upload an invoice. That's it. If they really can't manage, you can enter valuations on their behalf.
Yes. All data is encrypted in transit and at rest. Hosted on UK servers with row-level security ensuring users only see their own data.
Absolutely. During setup you enter the current cumulative position for each contractor. BuildFlow picks up from there with no disruption.
Yes. BuildFlow is designed for UK construction workflows including JCT Minor Works, Intermediate, and Design & Build.
Yes. BuildFlow automatically tracks the payment notice and pay-less notice deadlines required under the Housing Grants, Construction and Regeneration Act 1996 (as amended). You'll receive alerts before each deadline so you never accidentally create an undisputable payment obligation.
Choose a plan that fits, or your account pauses. Your data is never deleted. You can reactivate any time and pick up where you left off.
Stop chasing payments. Start managing them.
Join UK developers who've moved beyond spreadsheets.
Start Your Free Trial14-day free trial. No credit card required.