Available for work
Your trusted partner for quality home improvement
Charnwell Contractors delivers expert home improvements, creating beautiful and functional spaces with quality craftsmanship.
Available for work
Your trusted partner for quality home improvement
Charnwell Contractors delivers expert home improvements, creating beautiful and functional spaces with quality craftsmanship.
Available for work
Your trusted partner for quality home improvement
Charnwell Contractors delivers expert home improvements, creating beautiful and functional spaces with quality craftsmanship.
About us
home improvement specialists
Welcome to Charnwell Contractors trusted specialists in internal structural and non-structural alterations, home renovations, rear, side and house extensions, house refurbishment and loft conversions across London. We take pride in every aspect of our work, adopting your priorities as our own. While every project is unique, our commitment to quality, care, and precision remains the same. More than builders, we’re partners—collaborating closely with clients to deliver spaces that combine design, functionality, and compliance. At Charnwell, we create homes as exceptional as the experience of working with us.
0+
0+
Projects Completed
Successfully delivered bespoke construction solutions with a focus on quality and client satisfaction.
0+
0+
Projects Completed
Successfully delivered bespoke construction solutions with a focus on quality and client satisfaction.
0+
0+
Year Combined Team Experience
Our team brings together over five decades of hands-on industry expertise, ensuring skilled craftsmanship and informed decision-making on every project.
0+
0+
Year Combined Team Experience
Our team brings together over five decades of hands-on industry expertise, ensuring skilled craftsmanship and informed decision-making on every project.
0+
0+
Years of Industry Experience
Delivering quality craftsmanship and reliable service across residential and commercial projects.
0+
0+
Years of Industry Experience
Delivering quality craftsmanship and reliable service across residential and commercial projects.
Services
What we do
Find out which one of our services fit the needs of your project
Kitchens
We install high-quality kitchen spaces that combine functionality with a polished finish. Our kitchen projects include cabinetry, plumbing, tiling, electrics, and final finishes—all managed with attention to detail.
Loft Conversions
Maximise unused roof space with a loft conversion. From dormers to mansards and hip to gable designs, we transform attics into fully functional, beautifully finished rooms such as bedrooms, offices or additional living areas, complete with structural, electrical, and finishing works.
Bathrooms
Our bathroom services cover everything from simple upgrades to full installations. We handle plumbing, tiling, waterproofing, and installation of high-quality fixtures to deliver stylish, efficient, and durable bathroom spaces.
Extensions
We specialise in building seamless extensions that enhance your living space and add long-term value to your property. Whether you're adding a single-storey rear extension or a multi-level side return, our team ensures a smooth and stress-free experience.
Internal Refurbishments
We provide comprehensive internal refurbishment services, updating layouts, finishes, and functionality to suit your lifestyle. Whether you're modernising a single room or undertaking a full-home renovation, we ensure minimal disruption and impeccable results.
New Builds
We offer a full new-build service, managing all aspects from groundwork to final handover. Whether you're constructing a single dwelling or a larger development, we deliver high standards of workmanship, transparency, and project management throughout.
Commercial
We offer a full new-build service, managing all aspects from groundwork to final handover. Whether you're constructing a single dwelling or a larger development, we deliver high standards of workmanship, transparency, and project management throughout.
Structural Alterations
We offer a full new-build service, managing all aspects from groundwork to final handover. Whether you're constructing a single dwelling or a larger development, we deliver high standards of workmanship, transparency, and project management throughout.
Kitchens
We install high-quality kitchen spaces that combine functionality with a polished finish. Our kitchen projects include cabinetry, plumbing, tiling, electrics, and final finishes—all managed with attention to detail.
Loft Conversions
Maximise unused roof space with a loft conversion. From dormers to mansards and hip to gable designs, we transform attics into fully functional, beautifully finished rooms such as bedrooms, offices or additional living areas, complete with structural, electrical, and finishing works.
Bathrooms
Our bathroom services cover everything from simple upgrades to full installations. We handle plumbing, tiling, waterproofing, and installation of high-quality fixtures to deliver stylish, efficient, and durable bathroom spaces.
Extensions
We specialise in building seamless extensions that enhance your living space and add long-term value to your property. Whether you're adding a single-storey rear extension or a multi-level side return, our team ensures a smooth and stress-free experience.
Internal Refurbishments
We provide comprehensive internal refurbishment services, updating layouts, finishes, and functionality to suit your lifestyle. Whether you're modernising a single room or undertaking a full-home renovation, we ensure minimal disruption and impeccable results.
New Builds
We offer a full new-build service, managing all aspects from groundwork to final handover. Whether you're constructing a single dwelling or a larger development, we deliver high standards of workmanship, transparency, and project management throughout.
Commercial
We offer a full new-build service, managing all aspects from groundwork to final handover. Whether you're constructing a single dwelling or a larger development, we deliver high standards of workmanship, transparency, and project management throughout.
Structural Alterations
We offer a full new-build service, managing all aspects from groundwork to final handover. Whether you're constructing a single dwelling or a larger development, we deliver high standards of workmanship, transparency, and project management throughout.
Why Choose Us
What Sets Our Company Apart
About us
home improvement specialists
Welcome to Charnwell Contractors trusted specialists in internal structural and non-structural alterations, home renovations, rear, side and house extensions, house refurbishment and loft conversions across London. We take pride in every aspect of our work, adopting your priorities as our own. While every project is unique, our commitment to quality, care, and precision remains the same. More than builders, we’re partners—collaborating closely with clients to deliver spaces that combine design, functionality, and compliance. At Charnwell, we create homes as exceptional as the experience of working with us.
0+
0+
Year Combined Team Experience
Our team brings together over five decades of hands-on industry expertise, ensuring skilled craftsmanship and informed decision-making on every project.
0+
0+
Year Combined Team Experience
Our team brings together over five decades of hands-on industry expertise, ensuring skilled craftsmanship and informed decision-making on every project.
0+
0+
Years of Industry Experience
Delivering quality craftsmanship and reliable service across residential and commercial projects.
0+
0+
Years of Industry Experience
Delivering quality craftsmanship and reliable service across residential and commercial projects.
0+
0+
Projects Completed
Successfully delivered bespoke construction solutions with a focus on quality and client satisfaction.
0+
0+
Projects Completed
Successfully delivered bespoke construction solutions with a focus on quality and client satisfaction.
About us
home improvement specialists
Welcome to Charnwell Contractors, your trusted specialists in internal structural and non-structural alterations, home renovations, rear, side and house extensions, house refurbishment and loft conversions across London. We take pride in every aspect of our work, adopting your priorities as our own. While every project is unique, our commitment to quality, care, and precision remains the same. More than builders, we’re partners—collaborating closely with clients to deliver spaces that combine design, functionality, and compliance. At Charnwell, we create homes as exceptional as the experience of working with us.
0+
0+
Years of Industry Experience
Delivering quality craftsmanship and reliable service across residential and commercial projects.
0+
0+
Years of Industry Experience
Delivering quality craftsmanship and reliable service across residential and commercial projects.
0+
0+
Projects Completed
Successfully delivered bespoke construction solutions with a focus on quality and client satisfaction.
0+
0+
Projects Completed
Successfully delivered bespoke construction solutions with a focus on quality and client satisfaction.
0+
0+
Year Combined Team Experience
Our team brings together over five decades of hands-on industry expertise, ensuring skilled craftsmanship and informed decision-making on every project.
0+
0+
Year Combined Team Experience
Our team brings together over five decades of hands-on industry expertise, ensuring skilled craftsmanship and informed decision-making on every project.
Services
What we do
Find out which one of our services fit the needs of your project
Kitchens
We install high-quality kitchen spaces that combine functionality with a polished finish. Our kitchen projects include cabinetry, plumbing, tiling, electrics, and final finishes—all managed with attention to detail.
Loft Conversions
Maximise unused roof space with a loft conversion. From dormers to mansards and hip to gable designs, we transform attics into fully functional, beautifully finished rooms such as bedrooms, offices or additional living areas, complete with structural, electrical, and finishing works.
Bathrooms
Our bathroom services cover everything from simple upgrades to full installations. We handle plumbing, tiling, waterproofing, and installation of high-quality fixtures to deliver stylish, efficient, and durable bathroom spaces.
Extensions
We specialise in building seamless extensions that enhance your living space and add long-term value to your property. Whether you're adding a single-storey rear extension or a multi-level side return, our team ensures a smooth and stress-free experience.
Internal Refurbishments
We provide comprehensive internal refurbishment services, updating layouts, finishes, and functionality to suit your lifestyle. Whether you're modernising a single room or undertaking a full-home renovation, we ensure minimal disruption and impeccable results.
New Builds
We offer a full new-build service, managing all aspects from groundwork to final handover. Whether you're constructing a single dwelling or a larger development, we deliver high standards of workmanship, transparency, and project management throughout.
Commercial
We offer a full new-build service, managing all aspects from groundwork to final handover. Whether you're constructing a single dwelling or a larger development, we deliver high standards of workmanship, transparency, and project management throughout.
Structural Alterations
We offer a full new-build service, managing all aspects from groundwork to final handover. Whether you're constructing a single dwelling or a larger development, we deliver high standards of workmanship, transparency, and project management throughout.
Kitchens
We install high-quality kitchen spaces that combine functionality with a polished finish. Our kitchen projects include cabinetry, plumbing, tiling, electrics, and final finishes—all managed with attention to detail.
Loft Conversions
Maximise unused roof space with a loft conversion. From dormers to mansards and hip to gable designs, we transform attics into fully functional, beautifully finished rooms such as bedrooms, offices or additional living areas, complete with structural, electrical, and finishing works.
Bathrooms
Our bathroom services cover everything from simple upgrades to full installations. We handle plumbing, tiling, waterproofing, and installation of high-quality fixtures to deliver stylish, efficient, and durable bathroom spaces.
Extensions
We specialise in building seamless extensions that enhance your living space and add long-term value to your property. Whether you're adding a single-storey rear extension or a multi-level side return, our team ensures a smooth and stress-free experience.
Internal Refurbishments
We provide comprehensive internal refurbishment services, updating layouts, finishes, and functionality to suit your lifestyle. Whether you're modernising a single room or undertaking a full-home renovation, we ensure minimal disruption and impeccable results.
New Builds
We offer a full new-build service, managing all aspects from groundwork to final handover. Whether you're constructing a single dwelling or a larger development, we deliver high standards of workmanship, transparency, and project management throughout.
Commercial
We offer a full new-build service, managing all aspects from groundwork to final handover. Whether you're constructing a single dwelling or a larger development, we deliver high standards of workmanship, transparency, and project management throughout.
Structural Alterations
We offer a full new-build service, managing all aspects from groundwork to final handover. Whether you're constructing a single dwelling or a larger development, we deliver high standards of workmanship, transparency, and project management throughout.
Kitchens
We install high-quality kitchen spaces that combine functionality with a polished finish. Our kitchen projects include cabinetry, plumbing, tiling, electrics, and final finishes—all managed with attention to detail.
Loft Conversions
Maximise unused roof space with a loft conversion. From dormers to mansards and hip to gable designs, we transform attics into fully functional, beautifully finished rooms such as bedrooms, offices or additional living areas, complete with structural, electrical, and finishing works.
Bathrooms
Our bathroom services cover everything from simple upgrades to full installations. We handle plumbing, tiling, waterproofing, and installation of high-quality fixtures to deliver stylish, efficient, and durable bathroom spaces.
Extensions
We specialise in building seamless extensions that enhance your living space and add long-term value to your property. Whether you're adding a single-storey rear extension or a multi-level side return, our team ensures a smooth and stress-free experience.
Internal Refurbishments
We provide comprehensive internal refurbishment services, updating layouts, finishes, and functionality to suit your lifestyle. Whether you're modernising a single room or undertaking a full-home renovation, we ensure minimal disruption and impeccable results.
New Builds
We offer a full new-build service, managing all aspects from groundwork to final handover. Whether you're constructing a single dwelling or a larger development, we deliver high standards of workmanship, transparency, and project management throughout.
Commercial
We offer a full new-build service, managing all aspects from groundwork to final handover. Whether you're constructing a single dwelling or a larger development, we deliver high standards of workmanship, transparency, and project management throughout.
Structural Alterations
We offer a full new-build service, managing all aspects from groundwork to final handover. Whether you're constructing a single dwelling or a larger development, we deliver high standards of workmanship, transparency, and project management throughout.
Services
What we do
Find out which one of our services fit the needs of your project
Why Choose Us
What Sets Our Company Apart
FAQs
Answering your questions
Got more questions? Send us your enquiry below
What area are you based in?
We primarily serve London and surrounding areas, but depending on the project, we may be able to travel further. Get in touch to discuss your location and project needs.
How long does a typical project take?
Project timelines vary depending on the scope of work. A kitchen or bathroom renovation can take a few weeks, while larger projects like extensions or loft conversions may take several months. We provide clear timelines before starting any work.
Do you offer free quotes?
Yes! We offer free, no-obligation quotes. After an initial consultation, we’ll assess your project needs and provide a detailed estimate so you know exactly what to expect.
Will I need planning permission for my project?
Some projects, such as extensions and loft conversions, may require planning permission, while others fall under permitted development. We can advise on the necessary permissions and help with the process if needed.
Do you provide a guarantee for your work?
Absolutely! We stand by the quality of our craftsmanship and offer guarantees on our work to give you peace of mind. Specific warranties may vary depending on the type of project—just ask us for details.
Can I stay in my home while the work is being done?
It depends on the type of work being carried out. For smaller projects like bathrooms and kitchens, staying at home may be possible with minimal disruption. However, larger renovations and structural work may require temporary accommodation. We’ll discuss this with you before starting.
How do I get started with a project?
Simply get in touch! We’ll arrange a consultation to discuss your vision, assess your space, and provide expert advice. From there, we’ll give you a quote and a clear plan for moving forward.
Who will manage my project?
You’ll have a dedicated project manager as your single point of contact. They’ll coordinate the trades on a daily basis, schedule materials, organise inspections, and keep you updated throughout.
What area are you based in?
We primarily serve London and surrounding areas, but depending on the project, we may be able to travel further. Get in touch to discuss your location and project needs.
How long does a typical project take?
Project timelines vary depending on the scope of work. A kitchen or bathroom renovation can take a few weeks, while larger projects like extensions or loft conversions may take several months. We provide clear timelines before starting any work.
Do you offer free quotes?
Yes! We offer free, no-obligation quotes. After an initial consultation, we’ll assess your project needs and provide a detailed estimate so you know exactly what to expect.
Will I need planning permission for my project?
Some projects, such as extensions and loft conversions, may require planning permission, while others fall under permitted development. We can advise on the necessary permissions and help with the process if needed.
Do you provide a guarantee for your work?
Absolutely! We stand by the quality of our craftsmanship and offer guarantees on our work to give you peace of mind. Specific warranties may vary depending on the type of project—just ask us for details.
Can I stay in my home while the work is being done?
It depends on the type of work being carried out. For smaller projects like bathrooms and kitchens, staying at home may be possible with minimal disruption. However, larger renovations and structural work may require temporary accommodation. We’ll discuss this with you before starting.
How do I get started with a project?
Simply get in touch! We’ll arrange a consultation to discuss your vision, assess your space, and provide expert advice. From there, we’ll give you a quote and a clear plan for moving forward.
Who will manage my project?
You’ll have a dedicated project manager as your single point of contact. They’ll coordinate the trades on a daily basis, schedule materials, organise inspections, and keep you updated throughout.
Contact
Get in touch
For any inquiries or to explore your vision further, we invite you to contact our professional team using the details provided below.
FAQs
Answering your questions
Got more questions? Send us your enquiry below
What area are you based in?
We primarily serve London and surrounding areas, but depending on the project, we may be able to travel further. Get in touch to discuss your location and project needs.
How long does a typical project take?
Project timelines vary depending on the scope of work. A kitchen or bathroom renovation can take a few weeks, while larger projects like extensions or loft conversions may take several months. We provide clear timelines before starting any work.
Do you offer free quotes?
Yes! We offer free, no-obligation quotes. After an initial consultation, we’ll assess your project needs and provide a detailed estimate so you know exactly what to expect.
Will I need planning permission for my project?
Some projects, such as extensions and loft conversions, may require planning permission, while others fall under permitted development. We can advise on the necessary permissions and help with the process if needed.
Do you provide a guarantee for your work?
Absolutely! We stand by the quality of our craftsmanship and offer guarantees on our work to give you peace of mind. Specific warranties may vary depending on the type of project—just ask us for details.
Can I stay in my home while the work is being done?
It depends on the type of work being carried out. For smaller projects like bathrooms and kitchens, staying at home may be possible with minimal disruption. However, larger renovations and structural work may require temporary accommodation. We’ll discuss this with you before starting.
How do I get started with a project?
Simply get in touch! We’ll arrange a consultation to discuss your vision, assess your space, and provide expert advice. From there, we’ll give you a quote and a clear plan for moving forward.
Who will manage my project?
You’ll have a dedicated project manager as your single point of contact. They’ll coordinate the trades on a daily basis, schedule materials, organise inspections, and keep you updated throughout.
What area are you based in?
We primarily serve London and surrounding areas, but depending on the project, we may be able to travel further. Get in touch to discuss your location and project needs.
How long does a typical project take?
Project timelines vary depending on the scope of work. A kitchen or bathroom renovation can take a few weeks, while larger projects like extensions or loft conversions may take several months. We provide clear timelines before starting any work.
Do you offer free quotes?
Yes! We offer free, no-obligation quotes. After an initial consultation, we’ll assess your project needs and provide a detailed estimate so you know exactly what to expect.
Will I need planning permission for my project?
Some projects, such as extensions and loft conversions, may require planning permission, while others fall under permitted development. We can advise on the necessary permissions and help with the process if needed.
Do you provide a guarantee for your work?
Absolutely! We stand by the quality of our craftsmanship and offer guarantees on our work to give you peace of mind. Specific warranties may vary depending on the type of project—just ask us for details.
Can I stay in my home while the work is being done?
It depends on the type of work being carried out. For smaller projects like bathrooms and kitchens, staying at home may be possible with minimal disruption. However, larger renovations and structural work may require temporary accommodation. We’ll discuss this with you before starting.
How do I get started with a project?
Simply get in touch! We’ll arrange a consultation to discuss your vision, assess your space, and provide expert advice. From there, we’ll give you a quote and a clear plan for moving forward.
Who will manage my project?
You’ll have a dedicated project manager as your single point of contact. They’ll coordinate the trades on a daily basis, schedule materials, organise inspections, and keep you updated throughout.
Contact
Get in touch
For any inquiries or to explore your vision further, we invite you to contact our professional team using the details provided below.
Why Choose Us
What Sets OUR TEAM Apart
FAQs
Answering your questions
Got more questions? Send us your enquiry below
What area are you based in?
We primarily serve London and surrounding areas, but depending on the project, we may be able to travel further. Get in touch to discuss your location and project needs.
How long does a typical project take?
Project timelines vary depending on the scope of work. A kitchen or bathroom renovation can take a few weeks, while larger projects like extensions or loft conversions may take several months. We provide clear timelines before starting any work.
Do you provide a guarantee for your work?
Yes — we provide a written workmanship warranty for all our building projects.
Do you offer free quotes? Yes?
We offer free, no obligation quotes. After an initial consultation, we'll assess your project needs and provide a detailed estimate so you know exactly what to expect.
Who will manage my project?
You’ll have a dedicated project manager as your single point of contact. They’ll coordinate the trades on a daily basis, schedule materials, organise inspections, and keep you updated throughout.
Do you handle structural work, or do I need to hire an engineer?
We have in-house structural engineering expertise, so we can take care of structural calculations and designs as part of your build — saving you time and added costs.
Do you use subcontractors or your own team?
We use a mix of trusted in-house professionals and specialist subcontractors we’ve worked with for years. Everyone on-site is vetted, qualified, and supervised by our project manager to maintain quality and safety.
Does your service include a insurance-backed warranty for large projects ?
10-year insurance-backed warranty is offered for large projects and we're always open to discussing protections that provide complete peace of mind.
Contact
Get in touch
For any inquiries or to explore your vision further, we invite you to contact our professional team using the details provided below.
Office
16a Prince of Wales Mansions, SW11 4BG
Telephone