Building, upgrading, and caring for properties — responsibly, over their lifetime.
At Bigness, we don’t just deliver construction projects. We take responsibility for how your property performs today, tomorrow, and years from now.
Every project is planned with long-term performance in mind — reducing future problems, avoiding unnecessary costs, and protecting the value of your asset.
We focus on protecting your property as an asset.
We finish when we promise.
No hidden costs, ever.
Crafted to last, every time.
Always up to standard.
You’re always in the loop.
Trusted construction. Proven results.
We help homeowners, developers, and organisations build, refurbish, and maintain properties the right way — with clear planning, transparent pricing, and decisions that still make sense in the future. From new builds and refurbishments to retrofitting and ongoing care, our work is designed to last — not just pass inspection.
New builds designed to perform — today and long into the future.
From foundations to finishes, we deliver new build projects planned with long-term performance in mind — not just handover day.
Every build is approached as a long-term asset, with careful decisions around structure, materials, detailing, and compliance to reduce future issues and protect value over time.
- Residential & multi-unit new builds
- Commercial shells & fit-outs
- Project management, compliance & future-ready delivery
Refurbishments designed to improve performance, not just appearance.
Whether updating a single room or refurbishing an entire property, we approach refurbishment with a long-term mindset — improving how spaces function today while preventing future issues.
Every refurbishment considers structure, services, finishes, and compatibility with the existing building, ensuring upgrades add real value rather than hidden problems.
- Residential & commercial refurbishments
- Interior upgrades & space reconfiguration
- Heritage-sensitive and fabric-aware renovations
Planned maintenance that protects your property over time.
We don’t treat maintenance as reactive call-outs alone.
Our maintenance services are planned to keep your property safe, operational, and performing as intended — preventing small issues from becoming costly problems.
By understanding how your building works as a whole, we help extend its lifespan, reduce disruption, and protect long-term value.
- Planned preventative maintenance (PPM)
- Responsive repairs & emergency call-outs
- Electrical, plumbing & building fabric care
Targeted upgrades that improve performance and protect value.
We approach retrofitting as a measured, property-specific process — not a checklist of technologies. Upgrades are selected based on how the building actually performs, ensuring improvements deliver comfort, efficiency, and long-term reliability.
Rather than chasing labels, we focus on solutions that genuinely future-proof your property and make sense over its lifetime.
- Insulation & airtightness improvements
- Heat pumps, solar & smart controls
- EPC improvements & compliance support
Glazing systems designed to perform as part of the building.
We deliver architectural glazing as an integrated part of the building envelope — balancing light, thermal performance, and long-term reliability.
Every system is specified, installed, and detailed to work with the structure around it, improving comfort, efficiency, and durability rather than creating future issues.
- Aluminium & uPVC windows and doors
- Bi-fold & sliding door systems
- Roof lights, lanterns & pergolas
The Bigness Process
How we plan, deliver, and care for your property — responsibly, over its lifetime.
Planning & Property Assessment
- Clear scope & objectives aligned to long-term outcomes.
- Responsible House check to identify risks (moisture, heat loss, future upgrades).
- Accurate surveys & takeoffs to prevent surprises and variations.
- Risk & contingency planning for time, budget, and buildability.
Execution & Quality Control
- Right team with the skills needed for the scope and detailing.
- Transparent communication with clear updates and decisions recorded.
- Quality checkpoints to prevent defects, rework, and hidden problems.
- Controlled delivery to keep progress predictable and compliant.
Handover & Ongoing Care
- Clean handover with what was improved and what to monitor.
- Future-ready guidance so upgrades later are easier and safer.
- Planned maintenance options to protect the property over time.
- Responsive support when issues arise or changes are needed.
Recent Projects
A snapshot of how we deliver quality—on time and on budget.
What Our Clients Say
“Bigness completed our loft conversion on time and with outstanding quality. Highly recommended!”
– Olivia M.
“Professional team, clear communication, and excellent results on our refurbishment project.”
– Jack M.
“Quick response and reliable maintenance. Our property is in safe hands with Bigness.”
– Sarah K.
“The team transformed our basement into a modern, functional space. Excellent craftsmanship!”
– Thomas R.
“From start to finish, the new build process was seamless. Couldn’t be happier with Bigness.”
– Emily W.
Bigness Insights
Smarter building, shared knowledge.
For decades, most buildings have been designed to achieve one main goal:get approved, get built, get handed over. What happens after that is often an afterthought. Maintenance issues.Energy inefficiency.Costly upgrades.Design decisions that don’t age well. As regulations tighten, energy costs rise, and expectations change, this way of building is no longer enough. The future belongs […]
Choosing to build a timber structure isn’t just about adding something to your property—it’s about creating a space that breathes with purpose. Whether it’s a peaceful summerhouse for quiet reflection, a sturdy garage to protect what you treasure, a playful nook for childhood memories, or a custom retreat for a beloved pet, timber buildings carry […]
In the heart of a city that never sleeps, where history whispers from brick and modernity soars in glass and steel, your property is more than just an asset—it’s a legacy. It’s the roof over your family, the foundation of your business, the culmination of a lifetime of work. A smart owner understands that protecting […]
Is your building an asset or a liability? For many business owners and property managers, the answer depends on one critical factor: a consistent, professional building maintenance strategy. A well-maintained building is more than just a pleasant place to work; it’s a safe, efficient, and valuable asset. On the other hand, deferred maintenance can lead […]
At Bigness Group, we are proud to launch our official website and open the doors to a new chapter in construction and property services across London. Our vision is simple: small enough to listen, big enough to deliver. This means we dedicate the same care and attention to small maintenance jobs as we do to […]
In the race toward sustainability, retrofitting is one of the most powerful tools we have. Instead of tearing down and starting fresh, the UK construction industry is increasingly focused on upgrading existing buildings with smart, sustainable solutions. Why Retrofitting Matters The UK has some of the oldest building stock in Europe. Many homes and commercial […]