Modern shipping container conversion interior with living area and kitchen
UK-wide delivery & installation

Modular buildings Renovated shipping containers

We design, convert and deliver container-based modular units for construction sites, events, agriculture and commercial use, from site offices and toilet blocks to fully livable accommodation, anywhere in the UK.

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What we build

Almost every unit starts as a shipping container. We renovate, insulate and fit them out to your specification, ready to plug in and use on arrival. We also build transportable buildings to specific dimensions as required. Flat packed container units that can be erected on site are also a popular option.

Stacked modular site offices on a UK construction site

Site Offices

Warm, insulated office units with electrics, heating and data points. Single or multi-container configurations for project managers and site teams.

Container toilet and shower block with male and female access

Toilet & Shower Blocks

Compliant welfare facilities for construction sites and events. Male, female and accessible cubicles with hot water systems and easy servicing access.

Converted container living accommodation unit

Living Accommodation

Self-contained sleeping quarters with kitchenettes and en-suites. Ideal for remote sites, seasonal workers and temporary housing schemes.

Multi-compartment container storage units

Storage Units

Secure, weatherproof container storage with options such as roller shutters, shelving and lockable access. Perfect for tools, plant and site materials.

Modular canteen and break room units

Canteens & Break Rooms

Fully fitted kitchen areas with seating, ventilation and welfare-compliant layouts. Keep your workforce fed and rested on site.

Bespoke converted container meeting room interior

Bespoke Conversions

Multi-container builds, stacked units and fully custom layouts. Tell us what you need and we will design a solution around your site and budget.

Industries we serve

Container modular units are fast to deploy, cost-effective and built to handle demanding UK conditions.

Construction

Site offices, welfare blocks and secure storage for housebuilders, civil engineering and infrastructure projects.

Events & Festivals

Temporary ticket offices, staff rooms, bars and back-of-house facilities delivered and collected to your event schedule.

Agriculture & Rural

Workshops, staff accommodation and storage for farms, estates and remote locations where traditional builds are impractical.

Education & Public Sector

Temporary classrooms, site offices and community facilities for schools, councils and NHS projects across the UK.

How it works

From first enquiry to units on your site, a straightforward process with one team handling everything.

1

Consult & Design

Tell us your requirements, site location and timeline. We produce layouts and a fixed quote with no hidden costs.

2

Build & Convert

Containers are sourced, cut, insulated and fitted out in our workshop, with electrics, plumbing, windows and finishes included.

3

Deliver Nationwide

We transport your unit anywhere in the UK on specialist hi-ab lorries, coordinating access and delivery windows with you.

4

Install & Handover

Units are positioned, connected and signed off on site. We provide certification and aftercare support as standard.

Xtra Spaces team member reviewing a 20ft container office drawing

UK specialists in container conversions

XtraSpaces is a British company based in London, converting shipping containers into high-quality modular buildings for clients across the United Kingdom.

We handle the full process in-house, from design and fabrication through to delivery and installation, so you deal with one team from start to finish. Whether you need a single 20ft site cabin or a multi-unit welfare village, we build it to spec and get it to you on time.

  • CSCS-certified installation teams
  • Units built to UK building regulations
  • Purchase-ready units, built to order or from stock
  • Delivery across the UK

What our clients say

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“We needed a welfare block and two site offices on a housing development in Yorkshire within three weeks. Xtra Spaces delivered exactly what we asked for, properly insulated, fully compliant, and craned into position without delaying the programme.”

James Whitfield

Site Manager · Leeds

“Ordered a toilet and shower block for a civil engineering job in Manchester. Turned up on schedule, plumbed in quickly, and passed inspection first time. Exactly what we needed on site.”

Sarah Morrison

Project Director · Manchester

“We hired two container site offices for a six-month road project. Well insulated, properly wired, and collected promptly when we finished. Straightforward from start to finish.”

David Okonkwo

Construction Manager · Birmingham

“Needed living accommodation for seasonal staff on a rural estate. The units were warm, secure, and delivered to a tight access track without any drama. Would use again.”

Fiona Campbell

Estates Manager · Glasgow

“Brilliant service for our festival site. Ticket office and staff room units arrived on time, looked professional, and were collected cleanly after the event.”

Mark Hughes

Operations Lead · Bristol

“We used them for a bespoke canteen and break room setup. Good communication throughout, fair quote, and the finished unit has made a real difference for our site team.”

Common questions

Do you sell shipping container conversions?
Yes. XtraSpaces sells container offices, welfare units, cafes, storage and bespoke conversions. These are purchases, delivered and installed across the UK.
Do you deliver outside London?
Yes. We are based in London and deliver nationwide, including site offices and modular container buildings to projects anywhere in the United Kingdom.
Can I buy a unit from stock?
Often, yes. We convert to your layout, and we also sell ready units when stock matches what you need, which is quicker than a full custom build.
How do I get a quote?
Call 020 4569 1850, use WhatsApp, or send the form on this page. Tell us the unit type, site location and timescale.

Get a free quote

Tell us what you need and where it is going. We will come back with a quote, usually within one working day.