Brighton Builders that are experts in home transformation

We design & build spaces that enrich people's lives.

Extensions, Refurbishments & Loft Conversions in Sussex

At Keystone our mission is to help our clients imagine, design and build environments that enhance their everyday routines and create a sense of joy in the place they live. Discover our full range of services below from small refurbishments to complete property renovations.

// Inspiring

Extensions

A home extension will not only give you the extra space you are looking for, it will also alter the dynamics of the home. Creating an opportunity to reorganise existing rooms to improve the flow and function of all your living spaces.

// Stylish

Refurbishments

A home refurbishment is an opportunity to tap into the full potential of your living environment by enabling the best possible use of space. Our design team will help you create bold upgrades and stylish remodelling to meet your changing needs.

// Spacious

Loft Conversions

Take advantage of the potential in your roof space by opening it up to a world of light and space. Clever and innovative loft conversions create a whole new canvas for you to rest, work or play

Modern kitchen looking into garden
// Inspiring

Extensions

A home extension will not only give you the extra space you are looking for, it will also alter the dynamics of the home. Creating an opportunity to reorganise existing rooms to improve the flow and function of all your living spaces.

Modern wooden kitchen with island
// Stylish

Refurbishments

A home refurbishment is an opportunity to tap into the full potential of your living environment by enabling the best possible use of space. Our design team will help you create bold upgrades and stylish remodelling to meet your changing needs.

Stylish loft conversion bedroom with skylight
// Spacious

Loft Conversions

Take advantage of the potential in your roof space by opening it up to a world of light and space. Clever and innovative loft conversions create a whole new canvass for you to rest, work or play

Working together to create your
dream home

Our specialist team based in Sussex work with you to turn your ideas into reality. Our complete design and build service from outset to completion will take the stress out of your project.

Bright-Modern-Kitchen-Island-Home-Mobile-Keystone-Build-op
// Our Approach
// Our Approach

Spark the Imagination

We help our clients re-imagine their living environment. Our design and build services have been influenced by a passion for optimising space and light.

A Vision Shared

Changing your home commits you to a project. We manage that project from start to finish. We live the vision with you step by step, ensuring that you feel valued and supported throughout.

Ensuite with skylight

Architects of Change

We pay attention to the process of changing your living space. Ideas are shared, plans are drawn, the project is scoped, materials are sourced, challenges are solved and a bright new home evolves.

Experience and Knowhow

We are all customers and our expectations have changed. We are inspired by different things. We are exposed to more ideas and trends than ever before. Our job is to provide the knowledge and insight that ties expectations, inspiration and ideas to a clear outcome.

// Our Services

Starting a project?

We engage with our clients to ensure clear communication and transparency throughout the building project. Setting clear expectations from the outset by providing accurate estimates of the scope and cost.

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Initial Consultation

From initial consultation through to completion all our building projects must deliver value. There are numerous factors and moving parts that dictate the success of a project outside of time, scope, and budget. We aim to ensure our clients have a clear understanding of all the elements involved in order to make an informed decision to engage our services.

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Design & Planning

The design and planning stage moves ideas and objectives to a concrete course of action. You may or may not have plans and approval for your project, either way design and planning is where inspiration and and imagination come together to help you visualise what you want your home to look and feel like once the project is complete.

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Build

A build project managed by Keystone means that from conception through to completion, everything is managed through a single point of contact. We coordinate all the required professionals from architects and structural engineers, to contractors and building control. Streamlining the process, saving you time and money.

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Aftercare

We pride ourselves in delivering exceptional customer service before, during and after a building project. Aftercare is offered to all clients following successful completion of their project and on-going property maintenance is available as a service to both existing and new customers.

About Keystone Builders Brighton

We are a team of experienced Brighton builders that help clients build properties that reflect their vision. We are with you every step of the way, from concept creation to planning and construction. Besides new concepts, we also help our clients reimagine living spaces .

Home Extensions

Home extensions can include anything as small as a counter to as large as an entire basement or outbuilding. Extensions also allow you to seamlessly connect indoor and outdoor spaces. Our design team of builders in Brighton works with you to understand your unique needs. Based on the project scope, we create plans, obtain permits, and share design options. We have several elegant designs for bedrooms, kitchens, bathrooms, and other indoor and outdoor living areas.

Brighton Builders for Loft Conversions

We offer four different loft conversions to help you transform your loft into a stylish living space. The most economical and least disruptive option are Roof Lights. A common roof light installation includes skylight windows, flooring, and a staircase.

Our most popular conversion is the Dormer conversion. It is an extension protruding from the slope. The third type we offer is the Hip-to-Gable conversion for detached and semi-detached houses . The conversion involves increasing living space by extending the sloping roof to create a vertical wall.

We are also one of the construction companies in Brighton that offers Mansard conversions. With this option, the roof extensions cover the entire length of the roof, making it nearly vertical and adding considerable living space.

Construction Companies in Brighton for Refurbishment

Refurbishment is a cost effective method of remodeling the living space. We help our clients with various refurbishment tasks, from reimagining a room to large scale renovation. Our design team consults with you to share options specific to the space. For instance, a typical decorating job involves plastering, painting, and decorating assistance. Similarly, remodeling kitchens includes carpentry, design, supplies, and fitting services. We focus on ensuring that the transformation provides results you want.

As reputed Brighton builders, we focus on providing value to our customers. Our focus on delivering high-quality solutions starts from the initial consultation. We discuss the budget, time and scope of the project with you in detail. Based on the discussion, we provide a clear outline for the project, so as to give you a good idea of our services.

In the design and planning stage, we collaborate with you to bring your vision to paper. We discuss all the major and minor details and create designs as well as 3D models, so you have a clear picture of your property.

In the building stage, our seasoned project managers ensure that the project goes as planned. We have long standing relationships with various competent professionals, including engineers, architects, and contractors. And, we continue to help you keep your property in excellent shape with our quality home maintenance services.

Please feel free to contact and discuss your vision in detail.

Contact Us

Keystone Build
Sussex House, Crowhurst Road, Brighton, BN1 8AF

Find Us At

Unlock your home’s potential

For over 10 years we have been inspired by the vast array of possibilities that are open to us when we seek to change our living environment. We work with a passion for using light and space to enrich peoples lives.

Our service area: We offer home extension, home refurbishment and loft conversion services in Sussex, Surrey and Kent. However, we would still love to hear from you if you are outside of our main service areas.