About Sinden Construction

Est. 1991.
The agility to move quickly and the experience to get it right.
Built on the belief that construction, done properly, makes a real difference

Sinden was founded in 1991 with a clear set of principles. That the best construction businesses are built on relationships as much as results, and that the buildings they deliver have a life far beyond the building contract.

Schools that shape young people, healthcare facilities that serve communities, heritage buildings that carry history forward, homes that people are proud to live in. We have always taken that responsibility seriously. And it shows in the quality of our work, and the clients who come back to us.

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net debt. Financially stable, with a strong balance sheet and net cash position
£1.9m+
social value generated across our portfolio in 2025
20+
active framework appointments
19%
of our people in earn and learn positions, against an industry average of less than 3%
9
sector specialisms delivered across London and the South East
30+ years of experience across some of the most demanding project environments in London and the South East

What that track record means in practice is a contractor with the knowledge, the accreditations and the supply chain to take on genuinely complex work, and a leadership team with the personal involvement to see it through properly.

We have worked across occupied hospitals, listed buildings, live education environments and high security sites. Each sector has taught us something that all future projects benefit from.

Our clients come to us because they want a contractor who will engage seriously with their project from the outset, give them a clear and honest picture of what delivery requires, and remain just as committed long after handover as they were on day one. Building that kind of trust, and sustaining it, is what we have always measured ourselves against.

That is the business we have built. And it is the business we are still building, with a growing presence across London and the South East, deeper roots in the sectors we know best, and a clear sense of where we are headed next.

At Sinden, how we work matters as much as what we deliver. These are the principles that guide every project, every relationship and every decision we make.

01.
Quality in everything we build
02.
Care in how we deliver
03.
Honesty in everything we do
04.
Pride in everything we leave behind

Frameworks we’re proud
to be on

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Considering Sinden for your project? Get in touch.