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01322 420140

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Based in New Eltham — a 5 minute drive from Sidcup

IT support for Sidcup businesses, from a team based in SE9

DMS has been providing IT support to businesses in Sidcup, New Eltham and across Southeast London since 2005. Remote support takes care of most things. When it doesn’t, we’re a five-minute drive away — so getting an engineer to your Sidcup office or site isn’t a problem.

Design and Management Systems Ltd (DMS) — IT support and managed services, 2A–4 Avery Hill Road, New Eltham, London, SE9 2BD. Founded 2005. Certified Microsoft Solutions Partner. Serving corporate and education sector clients across Southeast London and Kent.

“They don’t do technospeak — staff are comfortable calling them because they know their questions will be heard.” — David, D&M Contractors, Sidcup

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Why local matters

Fast remote support. On-site when it counts.

Most issues are resolved remotely, without disruption to your day. When something genuinely needs a physical visit, being a five-minute drive from Sidcup High Street means we’re not waiting on a regional depot to schedule an engineer. For businesses along the High Street, in Foots Cray, or around Blackfen, that’s the difference between a same-day fix and a two-day wait.

Years serving SE London

Desktops
supported

298 k+

System
monitoring

24 /7

Most issues resolved remotely — no waiting for a visit to be scheduled
On-site visits available when needed — engineers based in SE9, not a regional depot
Our customers tell us they value that we explain things without making them feel like they should already know
We genuinely enjoy working with local businesses — there's something different about supporting companies you might run into at the same places
We work with businesses across a range of sectors — from construction and trades to professional services, hospitality and beyond

Book a free 15-minute call

Fill in your details and we’ll call you back within one working day. We’ll ask a few questions about your current setup and what’s not working — and go from there.

Fields marked * are required. We’ll call you back within one working day. A free IT audit is available as a follow-up if it would be useful

IT services in Sidcup

Managed IT services for Sidcup and Southeast London businesses

From day-to-day helpdesk to cybersecurity, networking and cloud migration — DMS handles your entire IT so you can focus on running your business.

IT helpdesk & support

Remote and on-site support from engineers who know your setup — not a script-following call centre.

Cyber security

Firewalls, threat monitoring, Cyber Essentials certification and Microsoft Security Assessment — included in our full package.

Microsoft 365 & cloud

Migration, day-to-day management and ongoing optimisation of your Microsoft 365 and Azure environment.

Backup & recovery

Automated backups and tested recovery plans — so hardware failure or ransomware doesn't become a crisis.

Network & infrastructure

Firewalls, switches, Wi-Fi and cabling — installed and managed for reliability from day one.

24/7 monitoring

Proactive monitoring that catches problems before they affect your team — with immediate escalation when needed.

Customer feedback

What businesses say about working with DMS

Twenty years in Southeast London

We’re not a national provider with a local office — we’re a local business that happens to support organisations nationally. Most of our customer relationships are measured in years, not months.

“They don’t do technospeak. They explain things in plain English — staff are comfortable calling them because they know their questions will be heard and understood.”

David, D&M Group — Sidcup

“It’s like having our own IT department. The DMS team is part of the family — genuinely helpful, highly responsive, and nothing is ever too much trouble.”

Malcolm, Safeguard Orkin UK – Westerham

“It is easy working with DMS, they understand our business and are more flexible and responsive than larger companies I have dealt with.”

Mark, Nightglade – New Eltham

A 15-minute call is usually enough to find out.

Sounds like a good fit?

Book a free call

01322 420140

Transparent pricing

How much does IT support cost in Sidcup?

Managed IT support is typically priced per user per month. DMS offers two packages — the price you see is the price you pay, with the scope of each package set out clearly before you commit to anything.

£ 30 from, user / month

Remote & on-site helpdesk support
24/7 proactive system monitoring
Microsoft 365 management
Network & infrastructure support
Regular maintenance & patching
Dedicated account management

£ 40 from, user / month

Everything in IT Support
Managed firewall & threat detection
Cyber Essentials certification support
Microsoft Security Assessment
Email security & anti-phishing
Staff security awareness training
Incident response & recovery

IT support across Sidcup and the surrounding postcodes

DMS supports businesses across Sidcup, Foots Cray, North Cray, Longlands, Halfway Street and the Sidcup Hill / station area. Most support is handled remotely — but being five minutes away means on-site visits are straightforward to arrange.

Areas covered from our New Eltham base
Remote support as standard. On-site visits available across these locations when needed.

DA14

Sidcup, Foots Cray, North Cray

DA15

Sidcup, Longlands, Halfway Street

What to expect

What happens when you get in touch

A lot of businesses put off switching IT providers because they’re not sure what the process looks like. Here’s exactly what happens from the first call.

A short call

We’ll have a 15-minute conversation to understand your current setup, what’s frustrating you, and whether we’re likely to be a good fit. No obligation, no pitch.

Free IT audit

If it makes sense to go further, we’ll review your existing infrastructure — remotely or on-site — and give you an honest picture of where things stand.

A clear proposal

You’ll receive a fixed-price proposal with everything set out clearly — what’s included, what isn’t, and what the monthly cost will be. No estimates.

Smooth handover

If you’re switching from another provider, we manage the transition. Most customers are fully onboarded within a few weeks with minimal disruption to their team.

Common questions

Frequently asked questions about IT support in Sidcup

What happens when you first get in touch with DMS?

The process typically starts with a short 15-minute call to understand your current IT setup and what you need. If it makes sense to go further, DMS carries out a free IT audit — remotely or on-site. From there, a fixed-price proposal is provided with everything clearly set out. For businesses switching from another provider, DMS manages the transition and most customers are fully onboarded within a few weeks with minimal disruption to their team.

What is the best IT support company in Sidcup?

That depends on what you need — but DMS has supported businesses in Sidcup and the wider DA14/DA15 area since 2005, with a base five minutes away in New Eltham, Microsoft Solutions Partner status, and ISO 27001 certification.

How quickly can DMS get an engineer on-site in Sidcup?

Most issues are resolved remotely. When an on-site visit is needed, being a five-minute drive from Sidcup High Street means we can usually get someone out the same day.

We already have someone who handles IT — can DMS work alongside them?

Yes. Many DMS customers have one internal IT person and use DMS to extend their capability — covering helpdesk volume, specialist projects, security assessments, or out-of-hours support. DMS integrates as a seamless extension of your existing team rather than replacing them.

Can DMS take over from our current IT provider?

Yes — most customers switching providers are fully onboarded within a few weeks, with DMS managing the handover.

What size businesses does DMS support in Sidcup and the DA14/DA15 area?

DMS supports businesses of all sizes across Sidcup and the surrounding area, typically from small teams of 10 users up to organisations of 100 or more, with managed IT support scaled to match.

Does DMS require long-term contracts?

DMS works on clear, transparent agreements without hidden lock-ins or penalty clauses. The aim is to earn continued business through quality of service rather than contractual obligation.

How much does managed IT support cost in Sidcup?

Pricing starts from £30 per user per month for core IT support, or £40 per user per month including full cyber security. A 15-minute call gets you a fixed quote based on your actual setup.

How much does IT support with cyber security cost for a small business in London?

For small and medium businesses in London, fully managed IT support including cybersecurity typically starts from around £40 per user per month when working with a provider like DMS. This covers helpdesk support, 24/7 monitoring, firewall management, threat detection, Cyber Essentials certification support and Microsoft security tools. For businesses of 10–100 users, this is often significantly less expensive than employing even one part-time IT person.

Where is DMS based, and how far is that from Sidcup?

DMS is based at 2A–4 Avery Hill Road, New Eltham, London SE9 2BD — a five-minute drive from Sidcup High Street.

Get Started

Talk to someone at DMS about your IT

A 15-minute call is usually enough to understand whether we’re a good fit. If it makes sense to take it further, we’ll arrange a free IT audit from there.

Book a free survey

Call us now

enquiries@dmsystem.co.uk · 2A–4 Avery Hill Road, New Eltham, London, SE9 2BD

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