Intercom Door Entry Systems
Control Access. Enhance Security. Communicate with Confidence
If your home is your castle, your front door is your drawbridge. Intercom door entry systems give you control over who enters your property—allowing you to speak with visitors, verify their identity, and grant access without ever opening the door.
Whether you're securing a multi-tenant apartment block, or a commercial office, or hospital ward, Delta Telecom Sound & Security provides tailored intercom solutions that combine convenience, safety, and peace of mind.
System Types
We offer a full range of intercom technologies to suit your property and preferences:
Audio-Only Systems
Cost-effective and reliable. Enables two-way voice communication for verbal verification.
Video Intercoms
Adds visual verification with a built-in camera and indoor monitor. Wide-angle lenses offer enhanced visibility for added security.
GSM Wireless Systems
Uses mobile networks to call your phone directly—allowing you to answer and unlock doors remotely from anywhere in the world.
Two-Wire Systems
Ideal for upgrading older buildings. These systems transmit power and data over a single pair of wires, often reusing existing cabling to reduce installation time and cost.
Benefits of Two-Wire Systems
Cost-Effective – Fewer cables mean lower material and labour costs
Quick Installation – Perfect for retrofit projects with limited access to walls or conduits
Reliable Performance – Fewer connection points reduce potential faults
Modern Upgrades – IP-based two-wire systems support high-definition audio and video over legacy infrastructure
Trusted Brands. Expert Installation.
Delta works with leading manufacturers to deliver high-quality, reliable systems at competitive prices. Our experienced engineers handle everything—from design and installation to testing and support. Whether you need a simple audio system or a fully integrated video and GSM solution, we’ll help you choose the right setup for your property.
Free Site Survey & Quotation
Every building is different. That’s why we offer free site surveys and tailored quotations to ensure your system fits your needs and budget. Contact our Sales Team today to arrange your free consultation.
What to Consider Before You Install
Intercom systems come in many shapes and sizes. Whether you're securing a residential entrance, managing visitor access in a commercial building, or upgrading an older system, choosing the right setup depends on your property layout, user needs, and future plans. Here’s what to consider when planning your installation:
Key Features to Look For
Audio vs. Video
Audio-only systems are cost-effective and reliable for basic verification.
Video systems offer visual confirmation, wide-angle views, and added deterrence.
Remote Access Options
GSM and IP-based systems allow users to answer calls and unlock doors from anywhere—ideal for landlords, property managers, or mobile staff.
Multi-Unit Capability
Systems can be configured for single dwellings or scaled to support dozens (or hundreds) of apartments or offices.
Door Release Integration
Electric locks, magnetic strikes, and gate motors can be triggered directly from the intercom handset or mobile device.
Installation Options
New Build or Retrofit - We work with both new developments and existing buildings. Whether you're starting from scratch or replacing an outdated system, we’ll design a solution that fits your infrastructure.
Maintenance & Support
Routine Servicing - Keep your system performing reliably with scheduled checks, firmware updates, and hardware inspections.
Fault Diagnosis & Repairs - Our engineers are trained to quickly identify and resolve issues—whether it's a faulty handset, damaged cabling, or a non-responsive door release.
System Upgrades - We offer upgrade paths for legacy systems, including analogue-to-IP conversions and mobile access enhancements.
Why Choose Delta?
Trusted by homeowners, developers, and facilities managers across Greater Manchester
Experienced engineers with expertise in both residential and commercial systems
Competitive pricing with no compromise on quality
Free site surveys and tailored quotations
Ongoing support and upgrade advice
Ready to Take Control of Your Entrance?
Whether you're securing a single door or managing access across a multi-unit site, we’ll help you choose a system that’s secure, scalable, and simple to use. Get in touch today.
Which Door Entry System Is Right for You?
Choosing the right intercom system depends on your property type, user needs, and budget. Use this guide to help narrow down your options:
Step 1: What type of property are you securing?
Single-family home or small office → Go to Step 2
Apartment block or multi-tenant site → Go to Step 3
Commercial or industrial site with remote access needs → Go to Step 4
Step 2: Do you need video verification?
No – audio is enough → Choose an Audio-Only Intercom System
✔ Cost-effective
✔ Simple installation
✔ Ideal for basic visitor screening
Yes – I want to see who’s at the door → Choose a Video Intercom System
✔ Visual confirmation
✔ Wide-angle camera options
✔ Enhanced security and deterrence
Step 3: How many units need access?
Up to 10 units → Choose a Multi-Button Audio or Video System
✔ Direct call buttons for each unit
✔ Simple wiring or two-wire upgrade options
More than 10 units → Choose a Digital or IP-Based System
✔ Scrollable directory or coded access
✔ Scalable for large buildings
✔ Centralised management and reporting
Step 4: Do you need remote access from anywhere?
Yes – I want to answer calls on my mobile → Choose a GSM Wireless Intercom System
✔ Calls your mobile directly
✔ Unlock doors remotely
✔ No internal handset required
No – I’ll answer from inside the building → Choose a Wired Audio or Video System
✔ Reliable local control
✔ Optional integration with CCTV and access control
Step 5: Are you upgrading an older system?
Yes – existing cabling is in place → Choose a Two-Wire System
✔ Reuses legacy wiring
✔ Supports modern audio/video features
✔ Saves time and cost on installation
No – new installation → Choose a system based on your preferred features and layout
