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House Extensions London - Professional Builders
Professional House Extension Specialists
Transform your home with a beautifully designed house extension by Rocko Construction Ltd. We deliver high-quality single-storey, double-storey, rear, side return and wrap-around extensions throughout London. From planning to completion, we manage every stage of your project with fixed quotations and exceptional workmanship.
Whether you need more space for a growing family, a larger kitchen or a new living area, a house extension is one of the best ways to increase your home’s value and improve everyday living.
At Rocko Construction Ltd, we specialise in designing and building high-quality house extensions across London. Our experienced team works with architects, structural engineers and Building Control to ensure every project is completed safely, efficiently and to the highest standards.
Why Choose a House Extension?
- Add valuable living space
- Increase your property’s value
- Avoid the cost of moving home
- Create an open-plan kitchen
- Improve natural light
- Tailored to your lifestyle
- Fully compliant with Building Regulations
Types of Extensions We Build
- Single Storey Extensions
- Double Storey Extensions
- Rear Extensions
- Side Return Extensions
- Wrap Around Extensions
- Kitchen Extensions
- Open Plan Extensions
- Extension & Renovation Projects
Our Process
1. Free Consultation
We visit your property and discuss your ideas.
2. Planning & Design
We work with architects and engineers where required.
3. Fixed Quotation
Clear pricing with no hidden costs.
4. Construction
Experienced builders complete every stage of the build.
5. Completion
Final inspections and handover.
Frequently Asked Questions
Do I need planning permission for an extension?
Some extensions fall under Permitted Development, while others require planning permission. We can advise you on the best approach.
How long does a house extension take?
Most projects take between 8–16 weeks depending on size and complexity.
Can you manage the whole project?
Yes. We provide complete project management from planning through to completion.
Do you offer fixed quotations?
Yes. Every quotation is fixed with no hidden costs.
Which areas do you cover?
We work throughout North London, North West London, West London, East London and selected areas of Hertfordshire.
Ready to Extend Your Home?
Whether you’re planning a rear extension, side return extension or a complete home transformation, Rocko Construction Ltd can help.