I felt completely comfortable leaving things in their hands”

Before Built Trust existed, Jason spent years as a foreman and project manager on other people's building sites. Along the way, he kept seeing the same frustrations play out for homeowners: juggling phone numbers for different trades, chasing updates, unsure if the price they were quoted was the price they'd actually pay.
When Jason started Built Trust, he built it around fixing exactly that. Every job gets one point of contact, a fixed price agreed upfront, and the same standards he'd apply to his own home. That's also why every job comes with a 10-year workmanship promise: if something doesn't hold up the way it should, Jason sees that as his responsibility to put right.
Click a photo — or use the arrows — to read each profile.
Jason founded Built Trust on a hands-on philosophy that still guides every project: treat each home as if it were his own, and every client as a neighbour. He leads the team through every stage, from the first conversation to the final walkthrough.
"Once the space is opened up, I'll sit down with you right there on site and design it in front of you, sketching directly onto a live photo of your room on an iPad. It makes the whole thing click in a way drawings on paper never do. And it means we turn designs around far quicker than most. Other companies have you waiting weeks. We don't."
A fixture on Built Trust sites since he was a pup, Bruce is the most professional member of the team — on time, unbothered, and a gentleman to every client and subcontractor he meets. Fully site-trained with an impressive repertoire of tricks, his most remarkable quality is his gentleness: he's the most delicate-mouthed dog you'll ever hand a treat to. His tail, however, has been likened to a police baton — you've been warned.
Sheila came to Built Trust as company for Bruce and promptly appointed herself his permanent companion, protector and shadow. Alert, spirited and endlessly curious, she's the unofficial site security — switched on and aware of everything, with the quiet dignity of a dog who knows she's beautiful (and she does know). Famous for a slow, deliberate blink that's stopped more than one person mid-conversation.
TrustMark
A government-backed scheme that independently vets builders on quality, trading practices, and customer service. It also gives clients access to independent dispute resolution and consumer protection, a safety net that sits behind your project from day one.
Federation of Master Builders
The UK's largest trade association for the construction industry. Membership means we've been vetted on our trading history, insurance, and technical competence, and we're held to their code of conduct on every job.
10-Year Promise
Every job comes with a 10-year workmanship promise, the same personal standard Jason built the business on.
Workmanship promise on every build
Project-managed, start to finish
Proudly serving Stevenage & Herts
Workmanship promise on every build
Project-managed, start to finish
Proudly serving Stevenage & Herts
Homeowners speak about their experience
Stop second-guessing and start experiencing a renovation led by a calm, steady hand. Whether you’re ready to build or just need expert guidance to start, we are here to listen.
Transparency is our promise. To the right, we’ve addressed the most common questions our clients ask when planning a luxury renovation. For more specific guidance, our team is always ready to provide the honest answers you deserve.
Transparency is our promise; we provide realistic, fixed pricing based on a deep understanding of your goals before a single brick is laid. We focus on intelligent design and practical problem-solving to maximise your budget and avoid the "money pit" scenario common with standard builders.
Many clients come to us knowing how they want their home to feel, without necessarily knowing how to translate that into a finished design. That is completely normal. We know how to ask the right questions to draw out what matters most - how you live, what you are drawn to, what you want the space to solve, and what will feel right for you over time. By understanding both your practical requirements and your personal sense of style, we can help shape a design that feels considered, natural, and genuinely yours.
Any building project will bring some disruption; what matters is how well it’s managed. We plan each stage carefully, communicate clearly throughout, and take practical steps to protect your home, keep the site tidy, and reduce unnecessary inconvenience wherever possible.
We are proud to be backed by TrustMark, the UK’s only Government-endorsed quality scheme for trades carried out in and around the home. It reflects our commitment to proper standards, good service, and doing things the right way. We also provide a written warranty on materials and workmanship, and if a genuine workmanship issue comes to light years later, we will still return and put it right. Our reputation matters deeply to us, and so does the experience our clients have with us.
Because the experience matters just as much as the finished result. We combine high standards of workmanship with clear communication, thoughtful planning, and a genuinely attentive approach, so you feel informed, looked after, and confident throughout the project. For us, doing the job properly means more than building well; it means being organised, considerate, and straightforward from start to finish.
Send a few details and we'll be in touch to arrange your consultation. Prefer a call? Hit "Relax, We'll Call You" and we'll do the rest.
+44 7480 777 253
25 Town Square, Stevenage, SG1 1BP
25 Town Square
Stevenage
SG1 1BP