Three businesses.
The software they use.
Two contractor implementations of Unibuild, and one bespoke system built for a heating and plumbing merchant. Running since 2016, 2017 and 2023.
EMS: temporary site services
A London-based contractor providing temporary power, water and welfare. The case study describes estimating, site valuations, applications for payment and plant records.
65.1 Sienna, White Hart Triangle
Thamesmead, London SE28 0GW
Unibuild web and mobile implementation. System history since 2016.
SME Building Services: M&E
A Croydon mechanical, electrical and air conditioning contractor. The case study covers site time records, purchase orders, inspection evidence and client access.
Unit 11 Silverwing Industrial Estate
Horatius Way, Croydon CR0 4RU
Web system, mobile app, and a portal their own clients log into, since 2023.
C&G: the merchant counter
A heating, plumbing and bathroom merchant in Erith. The case study describes its bespoke catalogue, tablet counter app and trade accounts, separate from the construction platform.
46 Mill Road, Northumberland Heath
Erith, Kent DA8 1HN
An inventory system with a tablet app at every counter, built by us, since 2017.
Which case study
fits your question?
Start with the work you want to see, then read the full account.
| Compare | EMS | SME Building Services | C&G |
|---|---|---|---|
| Business | Temporary site services contractor | Mechanical, electrical and air conditioning contractor | Heating, plumbing and bathroom merchant |
| Location | Thamesmead, London | Croydon | Erith, Kent |
| System history | Since 2016 | Since 2023 | Since November 2017 |
| Software | Unibuild web system and mobile app | Unibuild web system, mobile app and client portal | Separate bespoke merchant system: tablet app and web back office |
| What it covers | Estimating, site rate valuations, applications for payment, plant and stores | Site time records, purchase requests, inspections and client access | Product catalogue, quotations, counter invoicing and trade accounts |
| Reported evidence | Implementation account | July 2026 figures for gate scans, purchase orders, inspections and insurance status | 3 September 2026 figures for the catalogue, quotations and accounts; invoice estimate; owner testimonial |
| Read it for | Connecting measured site work to commercial records | Connecting site evidence and approvals to the office and client | Understanding a bespoke merchant implementation |
Records connected to the work.
The common theme is a shared record at the point of entry.
A record made on site or at the counter
EMS’s site measures, SME’s gate scans and C&G’s counter invoices illustrate different ways to capture a record near the work.
A check connected to the record
A recorded contract allowance, a named purchase approver or an account balance gives the person entering a record something to check against.
A system developed in stages
SME started with the core system in 2023. Timesheet approvals followed in late 2024, clock-in on the phone in early 2025 and purchase ordering in February 2026. C&G began with a catalogue in November 2017 and is still being added to.
Different implementations, different scope
EMS and SME are construction-platform examples. C&G is a bespoke merchant implementation.
5 star service by a great team at Unibuild.
Have been using Unibuild for approx 8 years now. 5 star service by a great team lead by Darshan. Having started of by making our own version of a Inventory system dedicated for our own needs and not just something off the shelf, the team have gone on to build us a very successful tablet app. Last year 2025 the team have made us 2 more APPS which have enhanced our business even more. All this at an affordable price. Can't recommend these guys highly enough 5 well deserved stars.
Gary McHattieOwner, C&G Heating & Plumbing Supplies LtdErith, Kent · trading since 2004
Read the C&G case studyNamed businesses. Public sources.
These are Unibuild customers, written up by Unibuild.
Business background can be checked against EMS’s website, SME Building Services’ website and C&G’s website. The individual pages link the relevant public sources.
The SME figures date from July 2026 and the C&G figures from 3 September 2026. The C&G invoice total includes an estimate for the years before 2023.
The pages behind each study.
The trade and module pages that explain what each firm runs.