MyBuildAlly vs Online Cost Calculators
Generic calculators give you a number. MyBuildAlly analyses your actual quote and tells you what's missing, what's overpriced, and what to ask your builder.
We analyse YOUR quote, not just give generic estimates.
Feature comparison
| Feature | MyBuildAlly | Online Calculators |
|---|---|---|
| Analyses your actual builder quote | ||
| Quote upload (PDF, photo, email) | ||
| Scope gap detection | ||
| Trade-by-trade cost comparison | ||
| Personalised to your location | ||
| Generic per-sqm estimates | ||
| No signup required | ||
| Benchmark-based quote analysis |
The problem with generic calculators
They don't see your quote
A calculator asks for size and location, then multiplies by a per-sqm rate. It can't tell you if your builder has missed structural steel, underestimated groundworks, or included items you don't need.
One number isn't enough
Knowing that “a 30m² extension costs £35,000-£55,000” is a wide range. You need to know whether the specific £48,000 quote on your desk is fair — and that means looking at each trade line by line.
They miss scope gaps
The most expensive surprises aren't overpriced line items — they're missing ones. Drainage, building control fees, or scaffolding omitted from a quote can add thousands to your final bill.
Frequently asked questions
How is MyBuildAlly different from a cost calculator?
Cost calculators give you a rough estimate based on size and location. MyBuildAlly analyses your actual builder's quote — comparing each line item against UK cost benchmarks and flagging missing scope items. It's the difference between a generic guess and a personalised second opinion.
Are online cost calculators accurate?
Generic calculators can give you a ballpark figure, but they can't account for your specific specification, site conditions, or builder's pricing. They're useful for very early budgeting but shouldn't replace proper quote analysis.
Can I use both?
Absolutely. Use a cost calculator for initial budgeting, then use MyBuildAlly to analyse actual quotes when builders come back to you. The two tools serve different stages of the project.
Go beyond a generic estimate
Upload your builder's quote for a personalised independent analysis with trade-by-trade cost benchmarks and scope review.
Try MyBuildAlly Free