Builder Cat Limited
We design and build high-quality home extensions – from planning to completion.
Transform your home with trusted, experienced builders.
From design to completion, we deliver high-quality home extensions tailored to your space, budget, and lifestyle.
Home Extension Specialists in London & Essex
Why Choose Us
✔ 28+ Years Experience
✔ Fully Insured & Qualified
✔ Free Site Visit & Quote
✔ High-Quality Workmanship
✔ Serving London & Essex
✔ No Hidden Costs
Complete Extension Service – Start to Finish
We manage your entire extension project – from initial planning to final build.
No stress, no delays, and no hidden costs.
Our Services
✔ Home Extensions
✔ Structural Work (RSJ Steel Installation)
✔ Wrap Around Extensions
✔ Removing a Load Bearing Wall
✔ Side Return And Rear Extensions
✔ Garage Conversion
Before
After
After
Before
(Removal of a Load Bearing Wall Project in Chingford)
Get in touch today for a FREE quote and site visit.
Ready to Extend Your Home?
Local Guide • 8 reviews • 5 photos
⭐⭐⭐⭐⭐ 14 weeks ago
I hired Builder Cat for my project to remove a supporting wall and install an RSJ and make good, full kitchen renovation and external insulation to back of the house. Serdar had fantastic communication from my first contact asking to quote. His quote was fair and transparent and included dealing with the local authority building control. The standard of work is great. Serdar was flexible with change requests throughout the project. The project was completed ahead of schedule and I couldn’t be happier with the results. Would highly recommend Builder Cat for any similar project.
7 reviews • 0 photos
⭐⭐⭐⭐⭐ 5 Oct 2024
Builder Cat did the most beautiful job on our kitchen and bathroom — and supported us with various projects around the whole house too. Serdar is thoughtful, has great attention to detail, communicative and highly professional - a joy to work with. I have already recommended Builder Cat to so many friends who have gone on to have really brilliant experiences too. You can have real confidence with Builder Cat on your project that it is in highly capable and supportive hands. I especially appreciate how much Serdar goes above and beyond prior to jobs even starting to support with specification and design detailing to make sure to deliver the vision of a project within the budget and timeframe. Outstanding - super appreciate the fantastic transformation you’ve brought to our house and how supportive and painless it was throughout.
⭐⭐⭐⭐⭐ Reviews on Google ⭐⭐⭐⭐⭐