IT support for construction companies has to deal with a business that runs in three places at once. There is a head office, which behaves like any other office. There are construction sites, which appear, run for a while on whatever connection can be arranged, and then disappear. And there are other people’s systems, because most of your project information now lives in a client’s portal or a main contractor’s document platform that you are given access to rather than control over.
Keeping those three working together is a different job from supporting a single building full of desks, and it is why picking an IT support provider that has only ever looked after offices tends to go wrong around month three.
The security side matters more than the size of the business suggests. In 2022 the Information Commissioner fined the construction group Interserve £4.4 million. The incident that started it was one employee forwarding a phishing email to a colleague. Attackers took the personal data of up to 113,000 staff, including bank details and National Insurance numbers.
No small contractor is facing a fine at that scale. The mechanism is the part worth borrowing, because it is the same in a fifteen-person groundworks business as it was there: email, one click, and access to everything behind it.
Computercentric has been providing IT support and managed services to businesses across the West Midlands for over 20 years, including firms that work exactly this way: multiple sites, mobile devices, subcontractors, and systems that belong to somebody else. Construction businesses get the same helpdesk, the same monitoring and the same engineers as everyone else, with the site side built on top.
Talk to us about IT support for your construction business. Call 01922 830000, WhatsApp or email.
What IT support for construction companies covers
IT services for construction firms have to cover everything a normal office needs, and then a second layer on top for the sites. A full set of managed support services for construction businesses looks like this:
- Helpdesk support for office staff, site managers, site teams, surveyors and directors
- Microsoft 365, Teams and SharePoint set up so drawings and project files stay findable
- Reliable connectivity for temporary site offices, from 4G and 5G through to business broadband and permanent lines
- Network design for cabins, site WiFi, CCTV and access control
- Proactive monitoring, so problems get caught before a site rings you
- Protection for the payment process, which is where the money actually goes missing
- Cyber Essentials and the security evidence main contractors ask for
- Backup and recovery covering project data, not just email
- Cloud services and secure access for people who are rarely at a desk, on or off site
- Mobile device management for phones and tablets that live on a construction site
- Support for the finance, CIS and project management systems you already run
- Hardware supply and leasing, including high performance workstations for design work
- Joiner and leaver processes that cope with project teams changing every few months
Most firms buy those IT services as one managed contract rather than piece by piece, because the site work and the office work keep running into each other. IT support for construction firms works best when one provider owns both ends, especially once you are running multiple sites.
The site is the hard part
Everything difficult about IT services in the construction industry comes from the same source. Your workplaces are temporary, and the IT infrastructure has to arrive before the work does and leave after it finishes.
Most construction firms are running multiple sites at different stages at once, and often multiple projects for different clients, with new work mobilising as other jobs finish. This is not a one-off exercise. It is a cycle.
Site connectivity takes longer than people expect
This is the one that catches firms out, and it is almost always a programme problem rather than a technical one. Order late and you get project delays that have nothing to do with the building work.
A permanent leased line is the right answer for a long project with cabins, cameras, cloud systems and a real headcount. The thing to know is that lead times depend almost entirely on what is already in the ground near your site, and they are measured in weeks or months rather than days, which is why connectivity belongs on your project timelines and not on the mobilisation checklist.
Where fibre already reaches the site it can be relatively quick. On a temporary compound, a new development or anywhere the network has to be physically extended, it takes considerably longer, because a survey has to happen, a route has to be designed, and any digging, chambers or road crossings have to be quoted, approved and carried out.
That last part matters commercially. Where the route has to be built rather than just connected, the carrier quotes the extra civils work separately, and approving that quote is itself a pause in the process. There is no standard price because it depends entirely on what the survey finds.
So order the permanent leased line early and never wait for it.
A 4G or 5G router can be running the same week. Bonded cellular, which combines multiple networks, holds up better where a single mast is unreliable. Satellite covers sites with no usable mobile signal at all. Point-to-point wireless is worth a look when the compound is within sight of an office you already connect.
Test the signal on site before committing to any of it, because coverage maps describe outdoors at ground level rather than the inside of a steel container. We can get a construction site checked and a realistic date confirmed before you commit to anything, which is usually more use than a number off a website.
Setting up the IT infrastructure on a new site
A working construction site setup is more than a router in a cabin. It usually means a firewall with secure remote access, a switch and a lockable cabinet, indoor and outdoor access points, laptops and a printer, Microsoft 365 accounts with multi-factor authentication, and separate networks so that CCTV, access control and site WiFi are not sharing a flat network with the people doing valuations.
Site environments are not offices with worse furniture. They are temporary, outdoors, dusty and shared with people who do not work for you, which shapes the hardware choices as much as the network design.
Do the survey on site before mobilisation rather than during it. Where the cabins will sit, where power is, what the signal actually does, where an antenna can go, and what happens to all of it when the structure goes up and blocks everything.
This is ordinary network design and installation work applied to temporary site offices, which is why IT services for construction firms tend to involve more site visits than an office-only contract.
Taking a site down
Demobilisation is the part nobody plans and it is where the risk sits. Hardware is the easy half: tag it, record serial numbers and SIMs, and reconcile it at every move. Insurer estimates put theft of tools, plant and equipment across UK construction in the hundreds of millions a year, and network kit is no harder to carry than a power tool.
The half that gets forgotten is access. Site accounts, guest WiFi credentials, camera and door system logins, subcontractor permissions and remote support tools all need closing down. Otherwise you finish a project and quietly keep a live connection into a building you no longer have anything to do with, with accounts belonging to people who left eighteen months ago.
Project documentation needs exporting somewhere controlled before the site closes, rather than hunting for it two years later when somebody asks a question. Closing a site down properly is the last stage of the project lifecycle and the one that gets least attention.
Cyber security and the payment chain
Construction businesses get targeted for a specific reason, and it is not that the industry is careless. It is that the money moves in large amounts, between many parties, with bank details that genuinely do change.
Invoice and bank detail fraud
UK Finance recorded £41.3 million lost to invoice and mandate scams across 2,305 cases in 2025, an average of roughly £17,900 per case. Three quarters of those losses, about £31 million, came from business accounts rather than personal ones. In the previous year’s figures, 81% of reported cases started with an email.
The scam is simple and it is built for your industry. A supplier’s bank details appear to change just before a payment run, or a project manager’s mailbox is compromised and revised instructions go out from a real address.
Other versions: an invoice against a genuine purchase order from a domain one character different from the real one, or somebody sitting quietly on an email thread and sending the “updated account details” message at exactly the right moment.
ONS figures put fake invoice fraud at 11% of businesses with employees, and mandate fraud at 7%.
What stops it is mostly procedure rather than software, and the widely recommended controls are straightforward. Do not accept a bank detail change from email alone, and verify by ringing a number you already hold in your own supplier records rather than one from the message.
Have two people approve any change to supplier bank details, and keep whoever changes supplier records separate from whoever releases payments. Put your bank detail change process in writing on your invoices and supplier onboarding forms, so suppliers know what to expect from you too.
The IT side supports that: multi-factor authentication on email, alerts for mailbox forwarding rules appearing without explanation, SPF, DKIM and DMARC configured so nobody can send email as your domain, and monitoring for sign-ins from places your staff are not.
What the survey data says about the sector
The DSIT Cyber Security Breaches Survey published on 30 April 2026 found 38% of construction businesses identified a breach or attack in the previous twelve months, against 43% across all UK businesses. Phishing was the most common, at 35%.
Slightly below average on incidents, but the construction industry is notably behind on preparation. Only 20% of construction firms have a formal incident response plan, against 25% overall. Only 3% hold Cyber Essentials, against 5% overall.
That second figure matters commercially, not just technically, and it leads directly into what your customers are starting to ask for. Proactive monitoring is what catches problems before they become incidents, which is the difference between proactive and reactive IT support. The construction sector has more moving parts than most to keep an eye on.
What main contractors now ask you to prove
Prequalification has changed. The assessment standards behind Constructionline and CHAS now cover cyber security, data protection and information management alongside the health and safety questions firms are used to.
The part that catches people out is the shape of the questions. They tend to ask not only what you do yourself, but whether you check that the subcontractors you engage have their own arrangements in place, and whether they have a data protection policy and privacy notice.
That is a question about your process rather than your technology. You can struggle with it while being perfectly secure, simply because the compliance documentation has never been written down. Check the current question set for whichever scheme your clients use, because the wording is revised periodically.
The realistic baseline that tenders and onboarding forms now expect is a documented information security policy proportionate to your size, multi-factor authentication on email and remote access, managed patching on supported systems, endpoint protection and monitored backups, controlled access to project folders with leavers removed promptly, staff awareness of phishing and payment fraud, a privacy notice and data protection policy, and an incident process that says who does what.
Cyber Essentials sits on top of that. It is not something the whole sector is obliged to hold, whatever you may have been told, but it is increasingly specified by individual clients, frameworks and public sector contracts, and it is the simplest way to answer a security questionnaire without a long conversation. Given only 3% of the sector holds it, it is currently a differentiator rather than a box everyone has already ticked.
Keeping project records straight
Record keeping in construction businesses has moved from admin chore to something closer to a project delivery risk. Clients and main contractors expect more evidence than they used to, retention periods on construction projects are long, and the questions tend to arrive years after the people who did the work have moved on.
What the regulations require of you is your area rather than ours, and it varies by the type of construction projects you take on and your role on them. What we can tell you is what it takes in IT terms, and it is unglamorous: a document environment where the current version is obvious, permissions that make sense, a backup that has actually been tested, and the ability to produce what you did and when you did it without three people searching their inboxes.
Most construction businesses already have the tools. Microsoft 365, SharePoint and the cloud collaboration tools sitting on top of them will do this properly when they are configured properly, which mostly means deciding where project files live, who can see them, what happens when somebody leaves, and how external parties are given access without being given everything.
A tested backup sits underneath all of it. Our guide to business continuity and disaster recovery covers what that should look like in practice.
The systems you already run
Construction firms rarely run one system, which is the root of most day-to-day frustration.
There is usually an accounts package, often Sage 50 with the CIS module, Xero or QuickBooks, sometimes with a construction layer such as Eque2 on top, or COINS and Integrity Software in larger businesses. There is a project management platform, which might be Procore, Autodesk Construction Cloud, Viewpoint 4Projects, Asite or Union Square, and which is frequently chosen by the client rather than by you. There are design tools, where Revit and AutoCAD need high performance workstations rather than whatever laptop was cheapest, and Bluebeam for markups. And there are site apps such as PlanRadar or Fieldwire collecting photos, snags and inspections across construction projects.
We look after the IT infrastructure these business systems run on, and the connections between them: Microsoft 365 and identity, the cloud services behind them, secure access on mobile devices, connectivity, backups, permissions, and getting project teams into client platforms without creating a mess of orphaned logins. Cloud based project management platforms are usually the client’s choice rather than yours, so the job is access and joiners and leavers rather than administration. Where a fault sits inside the application itself, we deal with the vendor rather than leaving your commercial manager or project managers running two support conversations at once.
The failure everyone recognises: current drawings in one place, the approved version in someone’s email, the site photos in a phone gallery and the instruction that changed it all in a WhatsApp thread. That is an access and process problem long before it is a software problem, and it slows project delivery in ways nobody ever logs as an IT fault.
IT support for construction companies in Birmingham and the West Midlands
Computercentric is based in Aldridge, near Walsall, which puts most of the West Midlands within easy reach. Most IT services run remotely, so day to day issues get handled quickly across multiple locations, wherever your people are. When something needs an engineer on site, for cabins, cabling, a WiFi survey or a mobilisation, we attend without the travel surcharges that come with providers based further out.
The regional construction industry runs from housing and civils through to fit-out, M&E and building products, much of it small and medium-sized construction companies that deliver projects as subcontractors for larger main contractors. That shape (a head office, a scatter of live sites, a mobile workforce, and systems belonging to the main contractor) is the same one we already support across manufacturing, logistics and multi-site organisations. Construction teams at remote locations get the same response as the people sitting in your head office.
We support construction companies and contractors in Birmingham, Walsall, Wolverhampton, Aldridge, Sutton Coldfield, Lichfield and Bournville.
Construction IT support across the West Midlands & Staffordshire
We support construction companies and contractors in each of the areas below, from a single head office to firms running several live sites, keeping the office, the sites and the project systems working together.
Birmingham
- Managed IT support
- Cybersecurity & EDR
- Cloud & Microsoft 365
Walsall
- Managed IT support
- Backup & disaster recovery
- Proactive monitoring
Wolverhampton
- Managed IT support
- Cybersecurity & compliance
- Network management
Sutton Coldfield
- Managed IT support
- Microsoft 365 management
- Business continuity
Lichfield
- Managed IT support
- Cybersecurity & EDR
- Backup & recovery
Aldridge
- Managed IT support
- Cloud services & hosting
- IT consultancy
Bournville
- Managed IT support
- Endpoint protection
- Business continuity
Frequently asked questions about IT support for construction companies
What does IT support for a construction company include?
Alongside normal helpdesk and Microsoft 365 support, IT support for construction companies should cover site connectivity and networks, security around your payment and supplier processes, backup that includes project data, support for your finance, CIS and project management systems, hardware sized for design work, and the security evidence main contractors ask for at prequalification.
The difference from ordinary office IT is that the support services have to follow the work into temporary site environments and then close them down properly, which is the part an office-only IT support provider has never had to build.
How do we get internet on a new site?
Order the permanent line as early as possible and run something temporary from day one, because a leased line on a new or temporary site is a matter of weeks or months rather than days, depending on what infrastructure is already nearby. A 4G or 5G router can be live within days. Bonded cellular improves reliability where one network is weak, and satellite works where mobile signal does not.
Always test the actual signal on site rather than trusting a coverage map.
How much does IT support cost for a construction company?
Managed IT services for construction businesses are usually priced per user per month, and published UK market benchmarks for SMEs tend to sit somewhere between £30 and £60 depending on what is included. Construction site IT is normally quoted separately, because a site needs connectivity, hardware and a setup visit rather than a named user.
Those are industry ranges rather than our rates, so treat them as a sense of scale and ask for a proper quote. Realistic budgeting treats each site as its own small project with a mobilisation cost, a monthly connectivity cost and a recovery at the end. Firms running multiple sites usually settle on a per-site monthly figure they can forecast.
Do construction companies need Cyber Essentials?
There is no general legal requirement. It becomes necessary when a specific client, framework or public sector contract asks for it, which is happening more often.
Only around 3% of UK construction companies hold it, so it currently helps you stand out at prequalification as well as closing the gaps it covers.
What do main contractors ask about our IT at prequalification?
The Common Assessment Standard used by Constructionline and CHAS asks whether you ensure your own subcontractors have cyber security arrangements, and whether they have a data protection policy and privacy notice.
Most firms can satisfy this but have never documented it. Having a short written security policy, a privacy notice and evidence of MFA, patching and backups answers the bulk of what gets asked.
How do we stop invoice and bank detail fraud?
Treat any bank detail change as suspicious by default. Verify by phone using a number from your own records rather than the email, require two people to approve the change, and keep supplier record changes separate from payment release.
Technically, MFA on email, alerts on new mailbox forwarding rules, and properly configured SPF, DKIM and DMARC close the routes attackers use to get into the conversation in the first place.
Can you support staff and subcontractors who are not office based?
Yes. Most construction companies have more people away from a desk than at one, spread across multiple locations. Site managers, site teams, surveyors and subcontractors need secure access from whatever device they have, without handing out permanent access to everything. Mobile device management keeps company data controlled on phones and tablets without taking over someone’s personal handset.
The important part is the process at both ends: getting people set up quickly when a project starts, and removing their access when it finishes, which is where most firms have accounts still live years later.
Can you support our accounts and CIS software?
We support the environment they run in: servers, databases, backups, connectivity, remote access, Microsoft 365 integration and user permissions. That covers most of what actually goes wrong with Sage, Xero, QuickBooks, the CIS modules and the project management layers that sit on them.
When the fault is inside the application, we take it up with the software vendor directly.
Talk to us about IT support for your construction business
If you have sites running on a router somebody bought in a hurry, accounts still active for people who left two projects ago, or a prequalification questionnaire asking security questions you cannot comfortably answer, none of that is unusual. It is what happens when the work moves faster than the admin.
It is also all fixable, and cheaper to fix than one diverted payment.
Start with a review. We will look at your office setup, how your construction sites get connected, your backup and security position, and the process around your supplier payments, then give you a straight assessment of where the gaps are and what closing them costs.
What you want is an IT support provider that understands construction as a way of working, rather than one that treats every new site as an unusual request. That applies to construction companies of every size, from a two-van operation to a contractor running six live sites at once.
Call us on 01922 830000 or contact us online. You can also see the other sectors we support, or read our guide to choosing the best IT support provider if you are comparing options.
