Working Locally, Building with Care
Why We Love Building in Barnet
Trusted by Barnet homeowners for over 40 years.
Barnet is full of character — and we’ve had the pleasure of working on all kinds of properties here, from period homes and maisonettes to newer builds in quiet residential pockets. Whether you’re near High Barnet, East Barnet, or somewhere in between, we understand the charm and quirks of local homes and what it takes to bring out their best.
As a local, family-run building company, we take pride in offering a service that’s personal, transparent, and easy to work with. We don’t just turn up and build — we guide, support, and communicate from day one. With decades of experience and a hands-on team that genuinely cares, you can feel confident knowing your project is in good hands.
Our Building Services in Barnet
Here’s how we help homeowners in Barnet create more space, add value, and fall back in love with their homes — all with expert workmanship and friendly service.
Loft Conversions
Unlock the potential in your roof space with a bespoke loft conversion. Whether it’s an extra bedroom, home office or en-suite, we’ll design and build something that works beautifully for your lifestyle.
Home Renovations
Time for a refresh? We help you reimagine and upgrade tired spaces with high-quality renovations — from new kitchens and bathrooms to full interior overhauls.
Structural Alterations
Looking to open up your layout or knock through a wall? We carry out all types of structural work safely and professionally, working closely with engineers and building control.
New Builds
Thinking about building from scratch? We manage every part of the process — from foundations to finish — with clear timelines, trusted trades, and top-tier results.
Why Choose Consta Construction
Barnet’s Friendly, Reliable Building Team
We’re not just another contractor — we’re your neighbours, and we care about doing the job properly. From the first phone call to the final finish, we’re there with honest advice, clear updates, and high-quality results.
With over 40 years in the building trade and a strong reputation across North West London, we bring depth of experience, smart problem-solving, and an eye for detail to every project we take on.
Our clients in Barnet trust us because we listen, we show up, and we deliver. Whether it’s a complex structural job or a simple home refresh, we’ll treat your home like it’s our own — and make sure the whole experience feels smooth and stress-free.
Got a Project in Barnet?
Let’s Bring Your Plans to Life
We’d love to hear what you’re working on. Whether it’s a loft conversion, a home renovation, or something completely custom, we’re ready to help. Let’s build something great together — starting with a no-pressure, no-obligation chat.
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
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Frequently Asked Questions About Building in Barnet
If you’re planning a project in Barnet, you might have a few questions. We’ve answered some of the most common ones below — in plain English — to help you feel informed, confident, and ready to get started.
Do you cover the entire Barnet area?
Yes, we cover all areas across the London Borough of Barnet — including High Barnet, East Barnet, Friern Barnet, New Barnet, Finchley, and surrounding neighbourhoods. If you're unsure whether you're in our service area, just give us a quick call or send a message — we’re always happy to confirm.
Can you help with planning permission or building control in Barnet?
Absolutely. Many of our projects in Barnet involve planning applications or building regulations approval, and we’re experienced in navigating the local authority’s requirements. We work closely with architects and structural engineers and can help submit applications or liaise with building control on your behalf to ensure everything is fully compliant.
How long will my project take?
The timeline depends on the size and scope of the work. A typical loft conversion might take 6 to 8 weeks, a kitchen renovation could be completed in 3 to 4 weeks, and a full home refurbishment might take a few months. After our initial consultation and site visit, we’ll give you a clear project schedule so you know exactly what to expect — no surprises.
Can I live at home while the work is being done?
In many cases, yes. For loft conversions and internal renovations, we take great care to minimise disruption so you can continue living at home safely and comfortably. If the work is more extensive or involves turning off utilities, we’ll give you plenty of notice and help plan around it. We’ll always communicate clearly and work around your schedule as much as possible.
What kind of warranty or guarantees do you offer?
All of our work is fully insured and backed by our workmanship guarantee. That means you can feel confident knowing everything we build is done to last. If something’s not right, we’ll come back and put it right — no fuss, no stress. We also provide the relevant certificates and compliance paperwork for building control and resale purposes.
Can I see some of your work completed in Barnet?
Definitely. We’ve completed a number of projects in and around Barnet, and we’d be happy to share photos, case studies, or even arrange a reference from a previous client. You can also check out our Completed Projects page to get a feel for the kind of work we do — and the standard we hold ourselves to.