Home Extension Builders In Kent
Quality home extensions built by experienced Kent builders
Add Space, Add Value - Trust Charthill To Build Your New Extension
Looking for reliable home extension builders in Kent?
Charthill specialise in constructing high-quality extensions that give you more space, improve how your home works, and add long-term value to your property.
Whether you’re planning a kitchen extension, a double-storey addition, or extending out to the rear, we deliver a professional, well-managed build from start to finish. Working with homeowners across Kent, our focus is always on quality workmanship, clear communication, and keeping your project running smoothly.
If you don’t yet have drawings or structural calculations in place, we can point you in the direction of trusted local architects and structural engineers to help you get started.
For many homeowners, extending is the smarter alternative to moving—allowing you to stay in the area you love while creating the extra space your home needs.
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Types Of House Extensions
We build a wide range of home extensions in Kent to suit different properties, layouts, and budgets. Whether you’re looking to create more living space or completely transform your home, there’s an option to suit your needs.
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Single Storey Extensions
A popular choice for expanding kitchens, dining areas, or creating open-plan living spaces. Ideal for improving ground floor layout and usability.
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Double Storey Extensions
Extend both floors of your home to add significant space, including extra bedrooms, bathrooms, or larger living areas—perfect for growing families.
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Rear Extensions
Extend into your garden to create a bigger kitchen, dining area, or family room. Great for improving flow and bringing in more natural light.
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Side Extensions
Make use of unused space at the side of your property—commonly found in terraced or semi-detached homes—to widen and open up existing rooms.
Wraparound Extensions
A combination of side and rear extensions, creating a large, open-plan space and dramatically changing the layout of your home.
Why Choose Charthill For Your House Extension
Choosing the right builder is one of the most important parts of your house extension project.
At Charthill, we focus on delivering high-quality construction, clear communication, and a smooth building process from start to finish.
Experienced Home Extension Builders
We have extensive experience building extensions across Kent and understand the structural requirements involved in transforming your house safely and efficiently.
Skilled Professionals
Our experienced team works efficiently and professionally while maintaining high standards of construction throughout the build.
Quality You Can Trust
We take pride in our workmanship. Every extension we build is completed with care, attention to detail, and high-quality materials designed to last.
Architect help
While we specialise in the construction of extensions and loft conversions, we can connect you with trusted architects and structural engineers who can prepare the drawings and structural calculations required for your project.
Honest and Straightforward Service
We believe in clear communication and honest advice. From the start of your project to completion, we keep you informed and make sure everything runs smoothly.
Efficient Projects
We aim to keep projects organised and on schedule, helping to minimise disruption while your extension is being built.
Local Kent Based Company
As a local company, we understand the types of homes found across Kent and the best ways to maximise space in a range of different properties.
Designed Around Your Home
Every property is different, so we approach each house extension with careful planning to ensure the finished space works perfectly within your home.
“The project was completed to a high standard and within the agreed timeframe. We are very happy with the final result and would highly recommend them to anyone considering a home extension.."
Mrs Sinclair - Wadhurst
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How To Start Your House Extension Journey With Charthill
Starting a house extension may seem complicated, but we make the process straightforward.
Step 1 – Initial Consultation
We begin with a conversation about your property, your ideas, and how you would like to use your new extension.
Step 2 – Architectural Plans
If you don’t already have plans, we can connect you with experienced architects and structural engineers who will prepare the drawings and calculations required for the project.
Step 3 – Project Planning
Once plans are ready, we review the construction details, timeline, and costs so you have a clear understanding of the project.
Step 4 – Construction Begins
Our experienced team carries out the house extension build, working efficiently and carefully to completely transform your home.
Step 5 – Your New Living Space
Once complete, you’ll have a fully functional new room(s) ready to enjoy.
Areas We Serve
From Tunbridge Wells to Dartford, and everywhere in between, Charthill serve homeowners and businesses all over Kent.
Chatham - Cranbrook - Dartford - Edenbridge - Gillingham - Gravesend - Maidstone - Northfleet - Rainham - Rochester - Sevenoaks - Sittingbourne - Strood - Swanscombe - Tonbridge - Tonbridge Wells
Frequently Asked Questions
Recent Projects
Childsbridge Lane, Seal
Large double rear and double side extension completed in Seal, Kent. There was also a complete refurb throughout the entire house.
We added 2 extra bedrooms, an ensuite bathroom, large kitchen/ diner and sizable family room.
Interior finished all white and both bathrooms tiled.
Exterior finished with K-Rend and Hardi-plank cladding.
Photos taken on completion as well as during the build.
Poplar Grove, Allington
Before, after and progress photos of a double storey extension on Poplar Grove, Allington.
We added a large kitchen/ diner downstairs. Turning the existing kitchen into a utility room and WC.
Upstairs we created a large master bedroom, dressing room and ensuite bathroom.
The job was completed with laminate floor finish downstairs, kitchen and bathroom tiling.
A rear decking area was also added.
Three Oaks Lane, Wadhurst
Finished photos of a single storey rear extension in Wadhurst.
This brick-built extension blends seamlessly with the original property, featuring sleek black aluminium bifold doors, matching windows, and a stylish roof lantern to flood the new space with natural light.
A perfect combination of classic design and modern living.
