Honest software comparison
Keystone Site vs MyBuilder: which is right for a UK trade business?
MyBuilder sells enquiries; Keystone Site helps you convert them. How UK trades should split their budget between the two.
Last updated 31 August 2026 · By the Keystone Site team
Side by side
| Keystone Site | MyBuilder | |
|---|---|---|
| Role | Conversion and delivery system | Enquiry marketplace |
| Competition | None — the customer is yours | You bid against other trades |
| Cost per enquiry | Unchanged; fixed subscription | Pay per contacted lead |
| Quote follow-up | Tracked proposal engagement and office follow-up actions | Not provided |
| Repeat work | Job history, portal and review follow-up | Not provided |
Competitor details are summarised from publicly available product positioning. Confirm current plans and features with each provider.
Best for
- Trades paying per lead who want a higher win rate from the leads they buy
- Owners who cannot see which quotes are still live
Not the right fit if
- Businesses looking purely for new enquiry volume this week
- You need a full accounting ledger — Keystone Site handles job commercials, not bookkeeping
- You run large commercial contracts needing programme-level planning and cost codes
- You want a lead marketplace that sells you shared enquiries
The facts
- 14-day free trial, no card required, on your own live job
- UK product, UK support, built for owner-led construction businesses
- Published pricing: £129/month Sole Trader, £249/month for 1–10 employees, £399/month Growth for 11–25 employees
- Customers, quotations, proposals, live work, variations, site evidence and closeout stay connected around the job
- Morning Briefing and Keystone Priorities surface commercial, customer, progress and closeout actions
- Project Safety Pack included as a core feature on every plan; additional users are £5 + VAT each per month
How Keystone Site and MyBuilder differ in practice
MyBuilder sits in the lead marketplace space. Keystone Site sits around the construction job itself: one connected record for the customer, quotation, proposal, live work, site evidence, customer communication, commercial changes and closeout. The comparison above is written from verified product capability, and it deliberately avoids quoting competitor pricing because plans change.
- Evidence is captured once on site and reused by the office
- Variations are priced, sent and tracked instead of being remembered
- Completion evidence supports the report, sign-off and deliberate review follow-up
How to test the difference on a real job
Pick one live job. Put every photo, note, message and change through the system for two weeks. Then ask three questions: could you answer a customer dispute from the record, did any extra work go unpriced, and was the job ready for a review request the day it finished? That test is more useful than a feature list.
What Keystone Site costs
Pricing is published rather than quoted on request: £129 per month for a Sole Trader, £249 per month for businesses with 1–10 employees, and £399 per month for Growth businesses with 11–25 employees. The Project Safety Pack is included on every plan. Additional users are £5 + VAT each per month. There is a 14-day free trial and no card is required to start.
- 14-day free trial, no card required, on your own live job
- UK product, UK support, built for owner-led construction businesses
- Published pricing: £129/month Sole Trader, £249/month for 1–10 employees, £399/month Growth for 11–25 employees
- Customers, quotations, proposals, live work, variations, site evidence and closeout stay connected around the job
- Morning Briefing and Keystone Priorities surface commercial, customer, progress and closeout actions
- Project Safety Pack included as a core feature on every plan; additional users are £5 + VAT each per month
Questions people ask
Is Keystone Site a direct replacement for MyBuilder?
Not in every case. For a trade business already paying for marketplace leads, Keystone Site is the better next investment because it raises the value of every enquiry you have already bought. Compare the two on one live job before switching anything.
Does this page quote competitor pricing?
No. Plans and features change, so confirm commercial details with each provider directly.
How long does it take to get started?
You can begin with one existing live job rather than migrating years of history. Exact setup time depends on the business; the trial lasts 14 days and does not require a card.