Business firewall solutions UK — NGFW installation, configuration & managed monitoring. Fortinet, Sophos, Cisco Meraki. Cyber Essentials aligned. 0203 834 9728.
FIREWALL
SOLUTIONS
UK BUSINESSES
Next-generation firewall installation and management for UK businesses. Vendor-agnostic — Fortinet, Sophos, Cisco Meraki, WatchGuard, Palo Alto. Cyber Essentials aligned.
Firewall vendors we
install and manage
Fortinet FortiGate
Enterprise-grade NGFW with SD-WAN, IPS, web filtering, and SSL inspection. Best for multi-site businesses.
Cisco Meraki
Cloud-managed firewall ideal for businesses with multiple offices. Centralised management, auto VPN, VLAN support.
Sophos XGS
Synchronized security with endpoint protection. Best for SMEs wanting tight integration between firewall and AV.
Palo Alto Networks
Top-tier NGFW for regulated industries and high-security environments. App-ID, User-ID, threat intelligence feeds.
WatchGuard
SME-focused NGFW with strong total security suite: DNSWatch, threat detection, endpoint protection bundled.
pfSense / OPNsense
Open-source NGFW for budget-conscious SMEs needing full control. Coreitech deploys and manages both.
Firewall solutions UK —
questions answered
Q.What is a business firewall and why do UK businesses need one?
A business firewall is a network security device that monitors and controls all incoming and outgoing traffic based on predefined security rules. Unlike home routers, business firewalls (next-generation firewalls, or NGFWs) include deep packet inspection, intrusion prevention, application control, web filtering, SSL inspection, and threat intelligence integration. UK businesses need a properly configured NGFW to: block ransomware and malware at the network perimeter, control which applications can access the internet, enforce web filtering policies, create secure VPN tunnels for remote workers, and segment internal networks (finance, operations, guest Wi-Fi). For Cyber Essentials and cyber insurance, a correctly configured boundary firewall is a mandatory requirement.
Q.What is the difference between a standard router and a next-generation firewall?
A standard broadband router provides basic NAT (network address translation) and simple port blocking. A next-generation firewall (NGFW) goes far beyond this: it inspects the actual content of traffic (deep packet inspection), identifies and blocks specific applications regardless of port, detects and blocks intrusion attempts, decrypts and inspects HTTPS traffic, integrates threat intelligence from global security feeds, and generates detailed security logs for compliance. For any UK business holding customer data or subject to Cyber Essentials or cyber insurance requirements, a consumer-grade router is not sufficient.
Q.How much does a business firewall cost in the UK?
Business firewall costs in the UK: hardware (NGFW appliance for 20–50 users): £500–£3,000. Security license/subscription (IPS, web filtering, threat intel): £300–£1,200/year. Coreitech installation and configuration (fixed-fee): £800–£2,500. Ongoing managed firewall service (monitoring, rule updates, patching): £50–£150/month. Total first-year cost for a typical 20–50 user London SME: £2,000–£6,000 including hardware, installation, and 12 months of management.
Q.What firewall vendors do you recommend for UK SMEs?
Coreitech is vendor-agnostic and works with Fortinet FortiGate (best overall for most SMEs), Cisco Meraki (best for multi-site businesses), Sophos XGS (best for tight endpoint/firewall integration), and WatchGuard (strong all-in-one bundle for smaller businesses). We do not recommend consumer-grade equipment (Netgear, TP-Link, BT HomeHub) for any business network.
Q.Do I need a firewall for Cyber Essentials?
Yes — Cyber Essentials requires all internet-facing boundary devices (including firewalls and routers) to: have a default-deny inbound policy, have administrative interfaces not accessible from the internet, block all inbound connections unless explicitly required, and have remote management disabled or protected by MFA. Coreitech provides Cyber Essentials-aligned firewall configuration as part of our certification service, with a 100% first-time pass rate.
Need a business firewall
installed in the UK?
Free network assessment — we'll assess your current perimeter security and recommend the right NGFW for your business size and budget.