C&G: a bespoke system
for the trade counter.
C&G Heating & Plumbing Supplies Ltd is a heating, plumbing and bathroom merchant in Erith, Kent. Its bespoke catalogue, counter invoicing and account system has a history dating to November 2017. It is a separate bespoke merchant implementation, built by Unibuild.
Published by Unibuild · Updated · Sources
A merchant,
not a contractor.
C&G sells heating, plumbing and bathroom products through a trade counter and a bathroom showroom in Erith. The showroom trades as C&G Bathrooms; both belong to C&G Heating & Plumbing Supplies Ltd.
Trade-account customers and walk-in buyers need different paperwork. An account sale involves terms, a credit limit and an outstanding balance. A walk-in sale is paid at the counter. The shared catalogue supports both, with a web back office for catalogue and account work and a tablet app for the counter.
The software was built for this merchant. The relevant comparison is the business process: keeping product, sale and account records connected at the point where the transaction happens.
Business identity
- Legal entity
- C & G HEATING & PLUMBING SUPPLIES LTD
- Company number
- 05288707
- Premises
- 46 Mill Road, Northumberland Heath, Erith, Kent DA8 1HN
- Implementation
- Bespoke merchant software; separate from the main Unibuild platform
The counter the system serves.
These client-supplied photographs show the premises and stock displays.
One catalogue. Counter and office workflows.
Unibuild’s account of the implemented workflows.
A shared product catalogue
Product records carry the information needed to identify and price a line. The catalogue is organised into categories used at the counter. Retiring an obsolete line rather than deleting its history allows older records to remain understandable.
Quotes and invoices on the tablet
The counter app gives staff a route to prepare a quotation or invoice while serving the customer. Quotes and resulting invoices can be linked.
Trade accounts and walk-in sales
Account customers have their own balances and terms. Walk-in sales use a counter account rather than requiring a new trade account for every visitor. This distinction keeps a paid counter sale separate from money owed by an account customer.
Account work in the browser
The web back office supports catalogue work, statements and credit control. The implementation account records an August 2026 change to align debtor ageing with the calendar-month basis used on customer statements.
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
What the system
has on its books.
Figures from the 3 September 2026 snapshot.
Catalogue product records reported on 3 September 2026, across 1,459 categories.
Quotation records in the reported snapshot. A reported 65.2% had converted to invoices.
Trade accounts reported as opened since 2017, as a cumulative record count.
Estimated invoices since 2018, as reported on 3 September 2026. Records before January 2023 are estimated from invoice-number sequences.
Development since
November 2017.
Selected milestones from Unibuild’s implementation account.
The first product records.
The recorded implementation history starts with a catalogue of 160 products. Catalogue development forms the foundation for identifying and pricing lines at the counter.
Trade-account records are added.
The account history records 75 accounts opened in December 2017.
A further generation of the tablet app.
The implementation account records an updated counter app alongside the existing web back office.
Debtor ageing aligned with statements.
The credit-control view moved from rolling day windows to the calendar-month basis used on statements.
Where this came from.
These are Unibuild customers, written up by Unibuild. The public sources below cover who the businesses are; the account of the software is ours.
Related processes, explained separately.
These guides discuss inventory and purchasing in general.