Turning Plans Into Prestigious Spaces
Exceptional Building Services Backed by Decades of Experience
At Consta Construction, we bring over 40 years of hands-on experience to every project, offering expert building services to homeowners across London. We specialise in high-end loft conversions, new builds, structural alterations, and full-scale home renovations — all delivered with precision, care, and a commitment to exceptional craftsmanship. Our work is rooted in trust, professionalism, and a deep understanding of what it takes to build not just beautiful spaces, but lasting client relationships.
Whether you’re expanding your home, reimagining your interior, or starting from the ground up, our team collaborates closely with you to bring your vision to life. Every detail matters — and we’re here to ensure the process is seamless, stress-free, and completed to the highest standard from day one.
Our Building Services
From loft conversions to full home makeovers, we’re here to help you shape a space that truly feels like yours. Every project is handled with care, attention to detail, and a team that genuinely loves what they do.
Loft Conversions
Unlock the hidden potential in your home.
New Builds
Built from the ground up — fully tailored to your vision.
Structural Alterations
Open-plan living made possible with expert structural work.
Home Renovations
Refresh and modernise your living space with precision.
See Our Work in Action
From elegant loft conversions and bespoke kitchens to full-scale renovations and new builds.
What Our Clients Say
We take pride in every project we complete — but don’t just take our word for it. Hear directly from our clients about the quality, reliability, and craftsmanship that define Consta Construction.
Kostas estimated accurately for the work (demolishing a weak garden wall, clearing, and then building a new replacement wall/fence), he and his colleague were professional, he provided detail, and kept us up-to-date throughout the process. He also handled all of the debris, disposal, skip issues in a very efficient way. I am pleased with the results, and would certainly recommend Kostas/Consta Construction Ltd based on this job.
Jules
London
Excellent, worked quickly, cleanly and floor looks fantastic. Good communication throughout.
Adam Cass
London
Re-plastering two ceilings, Re-fitting bathroom & kitchen. Complete decoration throughout the flat. Work was carried out efficiently & to a high standard within the time frame anticipated and within the agreed budget.
Anonymous
London
Kostas and his team were always friendly and polite, they turned up early and worked till late at times or occasionally on a Saturday to get everything done on schedule and communicated well with us.
Lynsey Winton
London
Find us on
