Recommended Builders in Chiswick

We are committed to delivering the highest levels of quality and service to our clients across all sectors. As a leading house extension builder in Chiswick, we continually embrace innovative ideas and modern construction methods to bring your vision to life.

Communication is key to what we do.

What We Do

Building Construction

New Builds, Extensions, Conversions, Renovations

General Building

Property Maintenance, Handyman Service, Decorating 

Design

Planning, Design, Project Management, Quality Checking

House Extension Builder Chiswick: Transforming Homes with KT5 Construction

Why Choose KT5 Construction for Your Chiswick House Extension?

Bespoke Designs: We create customised solutions that reflect your lifestyle and maximise your property’s potential.

Local Expertise: Our team is familiar with Chiswick’s architectural styles and planning regulations, ensuring smooth project execution.

Premium Materials: We source high-quality materials to guarantee durability and visual appeal.

Comprehensive Service: From planning to completion, KT5 Construction offers a seamless experience.

Luxury kitchen renovation with bespoke fittings and marble countertops by KT5 contractors.
Modern wraparound extension with sustainable materials.
House Extenaion Project by KT5

Popular House Extension Options in Chiswick

1. Kitchen Extensions

Expand your culinary space with modern kitchen extensions. Create an open-plan layout ideal for entertaining or a side-return extension to utilise underused spaces. KT5 Construction ensures your kitchen extension is both functional and stylish.

2. Single-Storey Extensions

Add light and living space with a single-storey extension. Perfect for creating a sunroom, home office, or additional living area that seamlessly integrates with your home’s design.

3. Double-Storey Extensions

Maximise your property’s value and space with double-storey extensions. Ideal for adding bedrooms, bathrooms, or a dedicated workspace.

4. Wraparound Extensions

Combine rear and side extensions to create an L-shaped design, offering unmatched flexibility and space for growing families.

Client Testimonials

“You made it so simple” – Just wanted to say thank you for making what I thought would be a difficult process much easier than I had imagined.

Sean Quinn

Thank you for my brand new house! The refurbishment and attention to detail makes it feel like a brand new house, but without the expensive cost of moving.

Miss A Kenna

Just wanted to thank you for the work carried out to my new bathroom, I will definitely be in touch shortly to talk about my proposed kitchen extension.

Mr J Hitchin

How KT5 Construction Handles Your Chiswick Extension Project

  1. Consultation: We start with a detailed consultation to understand your needs and aspirations.
  2. Planning and Design: Our architects and designers create plans tailored to your vision and property.
  3. Construction: Using premium materials and skilled craftsmanship, we bring your design to life with precision.
  4. Final Touches: Attention to detail ensures your extension is ready for use, enhancing both aesthetics and functionality.

Frequently Asked Questions

Q: How long does it take to complete a house extension in Chiswick?
A: Most projects take 12–16 weeks, depending on the complexity and size.

Q: Do I need planning permission for my extension?
A: While some extensions fall under permitted development rights, larger projects may require permission. KT5 Construction handles the process for you.

Q: How much does a house extension cost in Chiswick?
A: Costs vary based on size and design, with kitchen extensions starting from £50,000. Contact us for a free, no-obligation quote tailored to your project or for an instant quote try our  FREE EXTENSION COST CALCULATOR.

Contact KT5 Construction Today

Ready to transform your home? KT5 Construction is your trusted house extension builder in Chiswick. Contact us for a free consultation and tailored quote to bring your vision to life.

Positive Approach
Be flexible and react quickly to changing demands in order to understand and deliver over and above the clients expectations.

Communication
Management input on a day to day basis and regular client contact ensures problem free contract delivery which is built around the client’s needs and expectations.

Attention To Detail
We take time with our clients during the tender and procurement stage to make sure the small details are thought of and dealt with, making the build process easier.

Delivery
Throughout the project we will update our customers on when their project will be finished, our company ethos is “On Time & On Budget”

Why KT5 Construction?

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We Work With You

KT5 works with you on your project, large or small, making sure that we deliver your new project to the high standard you can expect to receive.

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25 years’ Experience

You can relax knowing that your project is being managed by a knowledgeable, experienced team.

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Quality Focused

Quality and design with our customers in mind. We pride ourselves on using the most modern building techniques and the skilled people.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YEARS OF EXPERIENCE

Completed Projects

Contact Us

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Office

Wesley House, Bull Hill, Leatherhead, Surrey KT22 7AH