5.0
Based on +100 reviews

Home Extension Specialists Serving IG, EN, CM, N & E Postcodes — Expertly Built Since 1999

Built over 850 extensions in London. Same builder starts and finishes your job. Meet them before you commit. Check our last 10 projects. We’re probably working on your street right now.

Full-Service Project Management
Planning Permission Assistance
Since 1999, +850 Projects Finished

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Tell us what you need and we’ll send you a custom quotation. It’s Always FREE!
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Before & After

Extensions We’ve Built in London

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Benefits

Why People Choose Us (And You Can Check)

20+ Years of Experience
Skilled & Trusted Tradesmen
Transparent Communication
Clean & Respectful Worksite
How It Works

We have a vision for the future of construction.

1

Consultation & Quote

Free visit and project estimate.
2

Planning & Design

Tailored architectural solutions.
3

Construction

Professional, on-time building work.
4

Finishing Touches

Final inspection and handover.
Testimonials

What Our Clients Say About Their Home Extensions

Real homeowners share their experience with K&E Construction — from the first consultation to the final reveal.

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M. Schneider
Essex, UK
Our dream kitchen extension came to life!

I was recommended K&E from My brother, whom he was recommended by a friend. We all have shared the same experience which has been nothing but pleasant due to solid communication, resilience, and workmanship.

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Bou Jaycoman
Cricklewood, UK
Reliable team and amazing results.

Kola and his team completed our loft conversion and ground floor open plan living/kitchen. Work done to a high standard, professional finish and on schedule. I was surprised, literally no snagging needed post work.

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Tim Griffiths
Brentwood, UK
Smooth process and high-quality work.

We had K&E Construction build a ground floor extension and loft conversion. We were delighted with every aspect of their work and all the work was of the highest standard. Nothing was too much trouble.

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Dylan West
St. Albans, UK
Great communication and quality.

The K&E construction team have completed a number of projects for me. Their communication and workmanship is the best I have ever experienced myself. Could not recommend higher. 5 stars all round.

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Michael Richard
Watford, UK
Trustworthy builders!

K&E construction have to the best construction company Ive had the privilege to work with, they constantly over exceed expectation for all the work they carry out for my clients I will always be using them.

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Finley Horn
Loughton, UK
Great team, highly recommended!

Had a extension done by these boys and from start to finish was fantastic polite, respectful and a perfect job completed definitely will be using for any further works.

M
Maria Januskaite
Gants Hill, UK
Reliable and skilled construction team.

K&E construction have just recently completed a loft conversion and rear extension for my family home. Was recommended to use them by a friend and so glad I went with them! The work completed is pristine and they were so accommodating with all the changes made along the way, couldn’t have asked for a smoother process.

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Sam Mercer
Forest Gate, UK
100% satisfied with the work.

K&E Construction have just completed a kitchen extension and revamp of my whole flat. Kola and team did a fantastic job and I am absolutely delighted – great communication throughout, the project completed on time, excellent quality of work and finish, they really cared about the project and getting it right for me.

Rated 5 / 5 based on +100 reviews from homeowners and property developers.
5.0

Ready to expand your home?

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Frequently Asked Questions

Have questions about our construction process, pricing, or timelines? Find your answers here.
How long does a typical home extension take?

Timelines vary depending on the scope and complexity of the project, but we always give you a clear estimate before work begins. For example, a standard loft conversion might take around 6–8 weeks, while a full home refurbishment could take several months. What we can guarantee is that we work efficiently, communicate regularly, and never compromise on quality.

Do I need planning permission?

It depends on the type of project. Some home improvements, like certain loft or garage conversions, may fall under permitted development rights, meaning you won’t need planning permission. Others, especially structural changes or extensions, may require approval. Don’t worry — we’re here to guide you through the entire process, and if permission is needed, we can help with the application and liaise with your local authority.

What areas do you serve?

We serve residential and commercial customers across London. At K&E Construction, we offer free, no-obligation quotes for all our services. Whether you’re considering a small renovation or a large-scale extension, we’ll arrange a visit, discuss your ideas, assess the space, and provide a detailed quote so you know exactly what to expect — with no hidden surprises.

Are you insured and accredited?

Yes — every member of our team is fully qualified, trained, and insured. We work with experienced tradesmen across all disciplines: electricians, plumbers, builders, tilers, and more. Our commitment to high standards and craftsmanship means you can feel confident in the people working on your home or property.

Ready to start your next project?

Let’s discuss your ideas — no obligation quote.

Contact Form – landing page

By clicking the “Get a Free Quote” button, I agree that a representative will contact me via text messages or phone calls to the phone number provided by me about the services or offers and consent is not required to make a purchase.

If you have an interesting project or commission you want to discuss, email us or call 07494978253
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