Our new Project Price Calculator for London refurbishments, extensions & loft conversions
We’ve launched a new way to price and plan building projects. Get a clear project estimate instantly — then book a Project Scope Review to refine costs, assess feasibility, and plan next steps.
Clear price. Clear rules. Clear commitment.
No negotiations, no “we’ll confirm later” — the calculator sets the commercial baseline from day one.
Use our calculator to explore how your project could be priced — start with simple inputs and get a clear estimate.
Why we built the calculator
Most homeowners want one thing early: a realistic number they can trust. This calculator applies the same pricing logic we use internally, so the first number you see is grounded in how projects actually run on site.
Built on real data.
Before launching, we tested the calculator against our completed London projects to check £/m², margins and performance over time.
This summary shows the real projects we analysed — the same projects that informed how the calculator models cost and pricing.
Historic profit margins from past London projects — showing the pricing discipline behind our approach.
As projects became more complex, pricing matured too — this view helped shape the calculator’s logic.
Key insight: Pricing upfront based on real work means clearer expectations and fewer surprises on site.
How instant booking works
Once you’ve built your quote, you can book instantly. The calculator price becomes the commercial baseline — no renegotiation stage and no waiting for revised estimates.
Project Scope Review
Book a professional site consultation to assess feasibility, refine costs, and plan next steps. The fee is deducted from your project if you proceed.
- Booking confirmed
- Measurement verification
- Programme & sequencing
- Contract documentation
- Start on site with expectations aligned
Why instant booking works
- Removes pricing uncertainty early
- Eliminates weeks of back-and-forth estimating
- Sets a clear commercial baseline
- Lets projects move forward with confidence
Try the calculator
If you’re planning a refurbishment, extension, loft conversion — or a combination —
you can now build your quote online and book instantly.