Your site mobilises Monday. Openreach quoted six to twelve weeks for a temporary line — if the duct survey comes back clean. Meanwhile the client wants time-lapse from day one, your security contractor needs the cameras streaming before the first delivery of plant arrives, and the site manager is asking why the welfare cabin has no Wi-Fi.

Construction connectivity has a structural problem: projects move in weeks, but connectivity providers sell in years. A 12-week groundworks package doesn't need a 24-month SIM contract, and it certainly can't wait a month for a fixed line. A fixed IP SIM for construction sites solves both halves — business-grade 4G/5G site broadband with a static public IPv4 address, shipped by GleeSIM the same day you order (before 2:00pm, weekdays), on 30-day and 90-day contracts that end when your programme does.

👉 See construction-ready Fixed IP SIM plans → gleesim.co.uk/collections/fixed-ip-sim

The Construction Connectivity Problem, Quantified

Every temporary site fights the same four battles:

1. Fibre can't arrive in time. Temporary line installations routinely take 4–12 weeks and cost hundreds in installation fees for a connection you'll abandon at practical completion. On shorter programmes, the line goes live after the job that needed it.

2. Standard 4G SIMs can't do the job. Site CCTV, time-lapse cameras and remote access all require inbound connections — and ordinary data SIMs sit behind carrier-grade NAT (CGNAT), which blocks them completely. DDNS won't rescue you either; there's no public IP for it to point at. (Full technical explanation: DDNS Not Working on 4G? Here's Why →)

3. Plant theft doesn't wait for your broadband. Tools, fuel and machinery walk off unsecured sites constantly — and unmonitored nights and weekends are when it happens. Cameras that can't be viewed remotely are scarecrows, not security.

4. Contracts outlive the project. Sign a 12–24 month SIM deal for a 16-week job and you're paying for connectivity on a site that no longer exists — or burning hours in cancellation negotiations. The industry's standard terms were designed for offices, not programmes.

What Is a Fixed IP SIM for Construction?

A fixed IP SIM for construction sites is a 4G/5G data SIM with a permanent static public IPv4 address, installed in a rugged site router to deliver instant broadband, remote-viewable CCTV, and welfare Wi-Fi — without waiting for a fixed line. Because the IP address never changes, site cameras, NVRs and access-control systems remain reachable from head office, monitoring stations and mobile devices throughout the entire programme.

One SIM, one router, whole-site coverage:

• Site broadband — genuine fixed-line replacement over 4G/5G for the site office, document control and BIM/cloud access
• Security CCTV & ANPR — direct remote viewing via the static IP, with port forwarding to every camera and NVR (setup guide: Fixed IP SIM for CCTV UK →)
• Time-lapse cameras — reliable scheduled uploads and remote health checks for client progress reporting
• Welfare unit Wi-Fi — connectivity for canteens and drying rooms, a CDM welfare expectation clients increasingly notice
• Site access control & alarms — turnstiles, gate intercoms and intruder alarms reachable and testable remotely
• Plant & asset tracking — GPS trackers and telematics on a permanently addressable connection

Why GleeSIM Fits Construction Better Than Any Fixed Line — or Any Other SIM Provider

⚡ Live before mobilisation, not after. Order before 2:00pm on a weekday and your fixed IP SIM ships the same day — 24-hour turnaround to UK addresses. Site broadband running the morning the cabins land, not week eight.

📋 Contracts that match the programme. GleeSIM provides bespoke quotes on 30-day and 90-day terms. A 12-week package gets a 90-day contract. A short enabling-works phase gets 30 days. When the programme extends — as programmes do — you simply roll on.

🚪 Demobilise without penalty. After your initial committed tenure, cancellation takes just one month's notice. Practical completion shouldn't come with a connectivity exit fee.

🏗️ Multi-site, one account. Running five sites across the region? Each gets its own SIM and dedicated static IP under one account and one management portal — usage alerts included. Scale from one site to fifty without renegotiating.

🌐 Network resilience where you build. Sites are frequently on urban fringes, brownfield land and rural plots where single-network coverage is a gamble. GleeSIM's multi-network fixed IP SIMs (Vodafone, O2, Three) connect to the strongest available signal automatically — while single-network EE, Vodafone and Three options cover coverage-specific site surveys.

🇬🇧 UK support that understands site life. Livingston, Scotland HQ. Real people who know what "the client wants time-lapse by Monday" means.

🏗️ Mobilising soon? Tell us your site count, data needs and programme length — bespoke quote turned around fast. Get a Construction Connectivity Quote →