Your Home Deserves Builders You Can Trust
Fixed-price quotes. No hidden costs. A dedicated team led by our founder on every project. London homeowners trust Prime Construct to deliver bespoke renovations: stress-free and on budget.
10
Year Warranty
£5m
Insured
100%
Fixed Price
Work completed to a high standard and effortlessly. Took the pain out of the project entirely. I didn't have a single stressful moment from start to finish.
We really trusted all the team and they were a pleasure to have in the house. Everything ran exactly as promised: on time, on budget, no drama whatsoever.
Completely transformed an empty railway arch into something I'm seriously proud of. On time, on budget. Genuinely pleased with every single aspect of the result.
Your homedeservescertainty.
Many homeowners tell us they have felt unsure who to trust. We built Prime Construct around one question: what would it take for you to feel confident from the first conversation?
One person.
Always Sam.
Sam is on site every single day. The person you meet is the person who leads your project. The same core team throughout, with clear ownership and no anonymous crews mid-build.
The quote
is the invoice.
Locked in writing before a single tool is unpacked. No revised estimates, and no price creep once work is underway.
You will never
be left wondering.
Consistent, proactive updates at every stage. You always know what's happening and what comes next. No chasing. No silence. No vague responses.
A decade of
accountability.
Every project backed by a 10-year warranty and £5m public liability insurance. Our commitment doesn't end when the tools are packed away.
“We didn't set out to be different. We set out to be what we believe a builder should be.”Begin your
project
How It Works
Three steps to your dream space
We've simplified the renovation process so you can focus on the exciting part: watching your vision come to life.
Tell Us Your Vision
Book a free, no-obligation call. We'll listen to your ideas, visit your property, and understand exactly what you want to achieve.
Get Your Fixed-Price Quote
We'll provide a detailed, itemised quotation with no hidden costs. The price we agree is the price you pay, guaranteed.
Relax While We Build
Sam leads your project on-site, with frequent updates and zero surprises. You get a 10-year warranty on everything we do.
Proof, Not Promises
See what we've built for others
Don't Take Our Word For It
What our clients say
5-star customer service.
We are proud to deliver a 5-star service. We receive high customer ratings as recommended builders on partner platforms, including MyBuilder, Checkatrade and Rated People.
“They provide a professional quotation in detail which was competitive. Work completed to a high standard and effortlessly. We've worked with a few builders over the years and Prime Construct really took the pain out of the 2-3 months project.”
Laila
Residential“Sam and his team were great. Communication was good and Sam also offered solutions to issues caused by our kitchen supplier. We really trusted all the team and they were a pleasure to have in the house. We will definitely be asking Sam to do our next round of house work!”
Alice
Residential“Prime Construct completely transformed an empty railway arch into my new gym (Train Yard SW4), they worked with me from concept through to creation and I am seriously pleased with the result. The team are great and their work is to a very high standard - I would definitely recommend and will be using them again in the future!”
Train Yard Gym
Commercial“As I'm a young woman I wanted to feel comfortable in my home with the builders who were going to be working in my house. The team were lovely and completed the job in a great standard. And any queries I had were met and resolved very quickly. I love my updated house - highly recommend!”
Megan
Residential“The downstairs of our home has been completely transformed. Sam and his team have shown great expertise in their project management, and their support in helping us design and make the changes to the layout to our home that we wanted. They provided a thorough quote, and quickly started work, sticking to timeframe and budget.”
Ben
ResidentialEverything Under One Roof
One team. Every trade. Zero hassle.
No juggling multiple contractors. Our directly employed team handles everything from concept to completion, so you have one point of contact and one team you trust.
Residential
From kitchens and extensions to full-home transformations, we treat your home as seriously as you do. Our in-house trades coordinate every stage so timelines stay clear, disruption stays controlled, and the finish matches how you actually live, not a generic template.
Commercial
Office fit-outs, retail refreshes, and commercial refurbishments delivered with the same disciplined programme management we use on site every day.
Project Management
One accountable lead, agreed milestones, and plain-English updates from first brief to handover, so you always know what happens next.
New Build
Ground-up construction and smaller bespoke developments, designed and built with the same team from groundwork to completion.
Building Maintenance
Planned servicing and reactive repairs that protect your asset, catch issues early, and keep buildings safe and presentable year round.
Home Renovation
Structural alterations, layouts that flow better, and durable finishes you will still be happy with years from now. Structure, first and second fix, and decoration stay under one coordinated team, with no gaps between trades.
Office Fit Out
Workspaces tailored to how your people work: power, data, acoustics, and compliance handled properly from the outset.
Roof Repair
Investigations, repairs, and renewals with honest guidance on what must be done now and what can be phased without risking the building.
Why Prime Construct
Built different. On purpose.
We set out to change the public's perception of small construction companies. Here's what makes us different.
Directly Employed Team
Our core team is directly employed by us, which means consistent quality, accountability, and people who genuinely care about your project.
Fixed-Price, No Surprises
Our detailed, itemised quotes mean you know exactly what you're paying. The price we agree is the price you pay. Period.
Founder On-Site, Every Day
Sam doesn't manage from an office. He's on your site, leading the team, solving problems in real-time, and keeping you informed.
10-Year Warranty
We stand behind our work with a comprehensive 10-year warranty. Plus optional insurance-backed guarantees for total peace of mind.
We Actually Listen
Your vision drives everything. We take the time to understand what you want, then add the expertise to make it even better.
£5m Public Liability
Fully insured with comprehensive public liability cover up to £5 million. Professional, proper, protected.
10+
years transforming London homes
Meet the Founder
Sam Flaxman built this company on one simple idea
“What if hiring a builder was actually a good experience?”
Sam set out to change the public's perception of small construction companies, with clear communication, agreed budgets from the start, and a habit of following through on what we promise.
Taking a personal and proactive approach, Sam is always on-hand and importantly, on-site, ensuring you're always fully up to speed. He employs his team directly, which means consistent quality, genuine accountability, and people who take pride in their craft.
The result? Renovations that are stress-free, on budget, and, according to our clients, genuinely enjoyable.
Common Questions
Questions we get asked
Can't find your answer? Get in touch. We're always happy to chat.
Every project is unique, so we provide a detailed, itemised quotation after understanding your requirements. Our quotes are fixed-price: the number we agree on is the number you pay. No hidden extras, no surprise invoices. We're happy to give you a free, no-obligation estimate after an initial conversation.
Timelines depend on the scope of work. A kitchen renovation might take 4 to 8 weeks, while a full house renovation could be 3 to 6 months. We provide a clear timeline upfront and stick to it. Sam manages every project personally, so there are no delays from miscommunication or absent management.
In most cases, no. We plan our work to minimise disruption to your daily life. We keep the site clean and tidy, and we'll discuss the schedule with you so you know exactly what to expect each week. For larger whole-house renovations, we'll advise if temporary relocation would be beneficial.
No. Our team is directly employed by us. This means we have complete control over quality, scheduling, and accountability. You will see the same trusted faces on your project from start to finish, not a changing roster of unfamiliar people.
Everything we do comes with a comprehensive 10-year warranty. If any issue arises with our workmanship or materials, we'll put it right. You can also opt for an additional insurance-backed guarantee for extra peace of mind. We're also covered by £5 million public liability insurance.
We work across all London boroughs. The majority of our projects are in South and South-West London (Wimbledon, Fulham, Balham, Camberwell, East Dulwich, Bermondsey), but we're happy to discuss projects anywhere in Greater London.
Ready to renovate without the stress?
Book a free, no-obligation consultation. We'll visit your property, listen to your ideas, and provide a detailed fixed-price quote, with no pressure and no hard sell.
Get Your Free Quote