28
July
2025
July
2025
“In the eyes of the court, a deal done over WhatsApp can be as binding as one sealed with ink.”
When WhatsApp Becomes a Contract: A Closer Look at Jaevee Homes Ltd v Fincham
In today’s fast-paced construction industry, where deals are often struck via smartphones rather than boardrooms, the case of Jaevee Homes Limited v Steve Fincham (trading as Fincham Demolition) sends a timely and important message to developers, contractors, and anyone navigating project agreements.
This case offers a valuable look at how courts interpret contract formation, especially through informal channels like WhatsApp, and the consequences of failing to comply with payment obligations under construction law.
The Power of a WhatsApp Message
On 17 May 2023, a WhatsApp exchange took place between Jaevee Homes and Mr. Fincham. The messages were simple, quick, and to the point—typical of how many contractors and developers now communicate. But were they legally binding?
If you’ve ever sent or received a message confirming a scope of work, a price, and a timeline without formal documentation to follow it up, this case should make you pause.
As a litigator, I’ve seen countless disputes where casual messaging turned into arguments between lawyers. The court in Jaevee Homes v Fincham had to decide: did those WhatsApp messages amount to a legally enforceable contract?
What Each Side Argued
Jaevee Homes’ Case
Originally, the case was decided in adjudication in favour of Fincham, however, following judgment Jaevee applied to the TCC saying that the Adjudicator had erred in law.
The developer claimed there was no binding agreement on 17 May. They argued that essential contract details—like the identity of the employer, the exact start date, and payment mechanisms—hadn’t been nailed down. In their view, the formal subcontract sent later on May 26 was the real agreement, as it included detailed written terms and conditions.
They also claimed that Mr. Fincham’s invoices didn’t meet the legal requirements for a valid payment application under the Housing Grants, Construction and Regeneration Act 1996, and that since proper applications weren’t made, the sums weren’t due.
Fincham’s Defence
Mr. Fincham disagreed entirely. He argued that a contract was clearly formed on May 17 via WhatsApp, based on a total price of £248,000 and payment terms of 28–30 days post-invoicing. He insisted his invoices were valid payment applications, and since Jaevee Homes failed to issue any payless notices, the amounts were due in full.
What the Judge Decided
The court sided with Fincham.
In a strong affirmation of modern communication norms, the judge ruled that the WhatsApp exchange did create a binding contract. Key commercial terms—scope, price, and payment—had all been sufficiently agreed upon. The written subcontract shared later was deemed irrelevant because Fincham never accepted it.
Moreover, the court concluded that Fincham’s invoices were valid under the 1996 Act, and Jaevee’s failure to issue payless notices meant they were liable to pay the sums claimed.
Lessons for Developers: Contracts in the Digital Age
This decision is a wake-up call for developer clients and construction professionals who rely heavily on informal chats and assume formalities can follow later.
Here are the key takeaways:
- Informal Messages Can Be Legally Binding
Don’t underestimate the legal weight of a WhatsApp exchange. If it includes agreement on key terms—like price, scope, and timing—it can amount to a binding contract.
- Don’t Delay on Payment Protocols
If you’re relying on statutory frameworks (like the 1996 Act), make sure your team understands how to respond to payment applications with proper notices. Miss a payless notice deadline, and you could end up paying sums you intended to contest.
- Put It in Writing—Properly
While fast communication tools are convenient, they’re no substitute for well-drafted contracts. Once terms are agreed, confirm them in a formal document—and make sure both parties sign off.
Final Word
The Jaevee Homes v Fincham ruling reflects a legal system adapting to the realities of modern business. Developers and contractors alike must balance the speed of digital communication with the discipline of clear, documented agreements. Because in the eyes of the court, a deal done over WhatsApp can be as binding as one sealed with ink.
If you want to discuss any of this with us, get in touch, contact Lauren Steel-Smith via lauren.steel-smith@primaslaw.co.uk.
