Honest comparison
HammerTech's breadth, permit depth and turnstile hardware suit large multi-site GCs, while Site Control is lighter, UK-CDM-first and transparently priced for builders who need RAMS/CPP/COSHH generation and fast per-site rollout.
HammerTech is the most feature-complete rival here, winning on permit depth, equipment/plant management, inspections maturity and optional IronGate facial-recognition turnstiles. The Site Book Site Control wins on UK CDM document generation (RAMS, CPP, COSHH versus US JHAs), RFIs, document-review evidence, transparent per-site pricing and self-serve speed. Site Control is honestly lighter: no biometrics, turnstiles, CIS payroll, GPS geofence, plant management or scheduling.
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Figures and feature claims are from HammerTech public pages (pricing, platform, IronGate) fetched 2026-06-06; HammerTech pricing is quote-only with no public figures, and Site Control pricing reflects The Site Book's published From-£675/site framing.
Pricing, fit, and feature coverage side by side.
| Feature | The Site Book Site Control | HammerTech |
|---|---|---|
| Pricing | From £675/site per month plus £5,000 one-off setup; volume tiers and annual prepay | Quote-only flat subscription scaled by annual construction volume and active job sites; no per-user fee, unlimited users, subcontractors free, implementation and support bundled. |
| Team size | Per active site with unlimited workers (~75+ typical); multiple contractor companies per site | Enterprise GC safety, operations and EHS teams managing many concurrent projects and large subcontractor pools. |
| Best for | Principal contractors and builders running live sites with subcontractors who need UK CDM documents generated plus on-site contractor access, attendance, RFIs and audit-ready evidence in one per-site tool. | Mid-to-large general contractors running multiple job sites who want one mature EHS and site-operations platform with optional turnstiles and equipment management. |
| Not ideal for | No biometric turnstiles or physical access control, so it cannot secure a Tier-1 perimeter the way MSite/Biosite can. | Runs US-style JHAs, Safety Plans and SDS and does not generate UK RAMS, CPP or COSHH documents, so UK CDM packs still need a separate tool. |
| RAMS / CPP / COSHH generation | Generates UK RAMS, CPP, COSHH and method statements from the project brief — unique in this category. | |
| Permits to work | Dedicated Permits module within the Coordinate workflow; permit depth is a recognised HammerTech strength. | |
| Site inductions | Digital induction blocks check-in until acknowledged. | Orientations and worker onboarding module gates worker readiness before site access. |
| Worker cert tracking | CSCS upload, internal review and expiry notifications. | Worker info, qualifications and orientation tracking with expiry handling as part of subcontractor management. |
| Right to work | CSCS credential review; not a formal right-to-work share-code check. | Captures worker credentials and onboarding data; UK right-to-work share-code verification is not a documented native feature. |
| Contractor self-onboarding | Contractor self-join via the entrance QR with CSCS upload and approval. | Subcontractor management lets sub firms self-complete onboarding; subcontractor access is free. |
| QR / mobile sign-in | Permanent entrance QR for guest sign-in/out and contractor self-join. | IronGate access supports QR codes and pin codes alongside facial recognition; mobile app handles field sign-in. |
| GPS clock-in | Attendance is captured via turnstiles and app; geofenced GPS clock-in is not a documented core feature. | |
| Biometric access | IronGate partner turnstiles provide facial-recognition biometric access, purchasable directly through HammerTech. | |
| Physical access control | IronGate facial-recognition turnstiles and gates engineered for harsh construction conditions. | |
| Site attendance | Check-in/out, history and a live people-on-site view. | Site Access plus IronGate sync labour hours and attendance in real time. |
| CIS payroll | ||
| Live people-on-site | Turnstile and access data give real-time who-is-onsite visibility for muster and evacuation. | |
| Multi-company isolation | Each contractor company sees only its own workforce — test-verified. | Built around GC-managed projects with free subcontractor access; per-company data isolation is implied by role model but not publicly test-verified. |
| RFIs | Create, attach, comment, answer and close — unique in this category. | |
| Document-review evidence | Version-specific read/acknowledge audit chain. | Bulletins and safety meetings capture acknowledgements; a version-specific document-review audit chain is not explicitly documented. |
| Toolbox talks | Safety Meetings and Bulletins modules cover broadcast toolbox talks and acknowledgement. | |
| Site inspections | Mature Inspections module within the Report workflow; inspections maturity is a HammerTech strength. | |
| Incident log | Incidents and Injuries module for reporting, tracking and investigation. | |
| Plant / asset management | Equipment Management module covers plant and equipment registers and inspections. | |
| Workforce scheduling | ||
| Multi-site dashboard & exports | Attendance CSV, monthly H&S CSV/PDF and project audit-log exports. | Reporting and Insights real-time analytics dashboard spans multiple job sites with exportable data. |
| Mobile app | iOS and Android contractor app. | Native iOS and Android apps linked from the platform pages for field use. |
| Offline mode | Mobile app is used in the field; offline capability is plausible but not explicitly documented on public pages. |
At-a-glance fit per product - pulled from the same data that drives the snapshot table.
Pick the option that matches how your team actually works.
Site Control wins: it generates RAMS, CPP and COSHH and deploys per site with transparent pricing and no hardware, where HammerTech's quote-only enterprise model and US JHAs are overkill.
Toss-up: choose Site Control for UK CDM generation, RFIs, document-review evidence and per-site clarity; choose HammerTech if you need deep permits, equipment management and inspection maturity in one tool.
HammerTech often wins: IronGate facial-recognition turnstiles, equipment management and a long enterprise track record fit large estates, though Site Control still complements it for UK CDM document generation.
Strengths, weaknesses, fit, and the sources every claim came from.
The Site Book Ltd
From £675/site per month plus £5,000 one-off setup; volume tiers and annual prepay
HammerTech
Quote-only flat subscription scaled by annual construction volume and active job sites; no per-user fee, unlimited users, subcontractors free, implementation and support bundled.
Site Control
Book a walkthrough
Per-site contractor access for principal contractors — talk to us about your live sites.
See it in action
Watch a walkthrough
See how Site Control runs QR sign-in, CSCS, induction gating, attendance and RFIs on a live site.
Every TheSiteBook feature
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Short, straight answers - the same questions real builders ask.
No. HammerTech stores and distributes safety documents and runs US-style JHAs, Safety Plans and SDS rather than generating UK CDM paperwork. The Site Book Site Control is built UK-CDM-first and actively generates RAMS, CPP, COSHH and method statements, so UK contractors get audit-ready compliance packs without a separate document tool. If UK CDM generation is the priority, Site Control closes a gap HammerTech leaves open for British sites.
HammerTech is quote-only: a flat subscription scaled by annual construction volume and active job sites, with no per-user fee and free subcontractor access. No public figures are published. Site Control is transparent at £5,000 one-off setup plus £675 per active site per month, with volume tiers and annual prepay. If you want a budgetable, self-serve per-site number, Site Control is clearer; HammerTech needs a sales conversation.
HammerTech is the more feature-complete platform here, with deep permits, mature inspections, incidents, equipment and plant management, plus optional turnstiles. Site Control is lighter and focused on UK CDM workflows: document generation, inductions with gating, attendance, RFIs and document-review evidence. Choose HammerTech for breadth across a large estate; choose Site Control for UK-specific compliance and faster per-site deployment without enterprise onboarding.
Yes. Through its IronGate partner, HammerTech offers facial-recognition turnstiles and gates engineered for construction, purchasable directly and syncing labour hours and attendance. Site Control deliberately does not do biometrics, turnstiles or physical hardware; it uses a permanent entrance QR for guest sign-in, contractor self-join and check-in/out. If you need hardware access control, HammerTech leads; if you want no-capex, fast rollout, Site Control fits better.
Site Control includes a full RFI workflow: create, attach, comment, answer and close, which is unusual in this site-access category. HammerTech focuses on EHS and site operations and does not document an RFI module on its platform pages. If request-for-information tracking matters to your site teams, Site Control covers it natively; HammerTech would need a separate construction-management tool alongside it for that collaboration workflow.
It depends on size. Large multi-site UK GCs wanting turnstiles, equipment management and inspection depth may prefer HammerTech, though they still need a UK CDM document source. Small and mid-size UK builders usually get more from Site Control: UK RAMS/CPP/COSHH generation, inductions with gating, RFIs, document-review evidence and transparent per-site pricing that deploys quickly without hardware or a lengthy enterprise onboarding cycle.
Figures and feature claims are from HammerTech public pages (pricing, platform, IronGate) fetched 2026-06-06; HammerTech pricing is quote-only with no public figures, and Site Control pricing reflects The Site Book's published From-£675/site framing.
Every pricing, feature, and fit claim in this comparison is pulled from public vendor documentation and cross-checked against independent sources. The “source basis” footer on each product card lists the exact URLs and the date we fetched them. We revisit this page at least every 90 days - last reviewed on .