
NSI NACOSS Gold approved
Our approval covers the design, installation and maintenance of intruder alarms, CCTV and access control systems.
View our certificateC&C Security Systems
Answers to common questions about choosing a system, planning installation and understanding ongoing services. Follow the detailed guide links where you need more context, or contact us about your own property.
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Family-run businessEstablished in 1984

NSI NACOSSGold Approved
Covering London,Kent, Essex and Surrey
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There is no single best arrangement for every home. Entrances, occupancy, pets, existing wiring and the way you want to operate the system all matter. Describe those requirements before choosing equipment. C&C can discuss the appropriate assessment and provide a quotation for the proposed installation.
Tell the team about your pets and the rooms they use before equipment is selected. The proposed detection and operating arrangement needs to be assessed for those circumstances. Do not assume that a product described as pet-friendly will suit every animal, position or household routine.
The choice depends on the building, available routes, existing equipment and intended use. Refurbishment may provide access for wiring, while finished surfaces may create different installation constraints. Compare the complete proposal, including operation and maintenance, rather than choosing only from the wired or wireless label.
It may be possible, subject to assessment of condition, compatibility and the outcome you need. Explain the current equipment and what you want to improve. The quotation should identify retained, replaced and added components, and consider whether the original coverage still suits the property.
Explain the operating pattern you need, such as occupied bedrooms while other rooms are unused. Whether and how this can be arranged depends on the proposed system and design. Include pets, home working and different arrival times in the discussion before agreeing the specification.
Start with the views you need rather than a camera quantity. A detailed doorway view and a wider overview are different tasks. Explain what you need to see, the lighting and normal obstructions. The proposed camera arrangement should then be assessed against those requirements.
Discuss phone viewing as part of the proposed setup. Availability and operation depend on the selected equipment, connection and supporting services. Ask which users can have access, who controls the account and whether any subscription applies. Do not assume every existing system supports the same remote features.
This depends on the proposed storage and recording arrangement. Tell the installer what history you need to review and ask how the specification addresses it. Do not assume unlimited retention. The person operating the system should also consider the relevant responsibilities for retaining and handling footage.
They can be assessed for suitability and compatibility with the proposed work. Give the make or model if known and describe whether the problem is coverage, image quality or usability. A quotation should identify what is retained and explain the complete camera, recorder and viewing arrangement.
The intended view needs careful consideration. Establish who controls the space and can authorise installation, then consult the ICO guidance relevant to home or business use. Equipment positioning and responsibility for recording are separate decisions; neither should be assumed from ownership of one flat or unit.
No. The response depends on the system, the agreed service and applicable requirements. Ask the provider to explain the actual arrangement and any conditions. Do not infer police attendance simply because the alarm communicates remotely or the installation company holds an approval.
A message on a phone and a monitoring service are different arrangements. A notification still requires someone to receive it and decide what to do. Ask what the proposed service handles, who is contacted, what response is included and which continuing responsibilities remain with you.
Contact C&C with the equipment details if known, the reason for the enquiry and any current maintenance or monitoring agreement. The team can discuss the assessment needed. Do not assume that support, compatibility or transfer of an existing service can be confirmed before the installation is reviewed.
The appropriate arrangements depend on the system, its service agreement and any relevant insurer requirements. Provide the equipment and maintenance information when enquiring. Ask what the proposed service includes and how visits are arranged rather than relying on a single interval for every installation.
Tell the relevant alarm or monitoring provider about the planned change and ask what the installed system depends on. Confirm any required checks and transition arrangements. Do not cancel an existing service on the assumption that a replacement is active simply because a new quotation has been accepted.
Door entry helps deal with callers at an entrance. Access control manages how authorised people gain entry. They can be considered together, but the requirement starts with who needs access and how admission should be decided. Explain the current door arrangement before selecting products.
The proposed change needs assessment against the existing installation and the permissions of the person responsible for it. A new handset or entrance device should not be assumed compatible with the shared system. Identify the building manager and available equipment details when you enquire.
The responsible administrator should follow the agreed process for changing or removing access on the installed system. Ask about user administration before accepting the proposal and include it in handover. The available controls and procedure depend on the particular arrangement, so keep the operating information accessible.
Provide the property postcode, type of premises and a short description of what you need. Mention existing equipment, access restrictions, planned building work and preferred timing. Include written insurer requirements where relevant. Do not send alarm codes or passwords in the initial enquiry.
C&C can usually discuss an initial estimate by telephone or arrange a survey where needed. The appropriate next step depends on the requirement and information available. Ask which assumptions underlie an estimate and what needs confirming before a defined installation proposal can be accepted.
An installation date is agreed after you accept the quotation. Tell the team your preferred timeframe and any access or contractor constraints during the initial discussion. Availability should be confirmed for the actual address and scope; no particular attendance time is promised by an area page.
Include it while the finished layout and work sequence are being discussed. New entrances, altered rooms and changing camera views can affect the requirement. Tell the installer when cable routes will be accessible and who coordinates the project, then agree the installation timing with the wider work.
It is an approval scheme covering the relevant security services and company quality management. Check the provider’s current approval and scope alongside the actual installation proposal. The badge does not, by itself, establish which equipment or monitoring arrangement meets your particular property or insurance requirements.
Do not assume a saving. Ask your insurer what applies to your property and policy, and obtain any security requirements in writing. Give those requirements to the installer before agreeing a specification. Insurance pricing and cover decisions remain matters for your insurer.
C&C is based at 54 Herbert Road, Plumstead, London SE18 3SH. The site provides service information for London and the stated surrounding coverage areas. Give the full postcode and proposed work so the team can discuss the location and appointment arrangements; area pages do not represent separate branches.
Professional standards. Reassuring expertise.

Our approval covers the design, installation and maintenance of intruder alarms, CCTV and access control systems.
View our certificate
Suppliers and installers of ECHO-connected monitored systems.
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Tell us about your property. We’ll discuss your requirements and arrange a telephone estimate or survey where needed.
020 3553 2364info@candcsecuritysystems.co.ukMonday to Friday, 9am to 5pmNSI NACOSS Gold approved · Established in 1984
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