Extension builders in Seaford

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4 (4 reviews)

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Some of our top rated extension builders in Seaford

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APD Building
Rating: 5 out of 5
Extension Builder in Seaford
I’m an experienced ground worker and builder based in Brighton and working throughout Sussex. I pride myself on the quality of my work, completing projects on time and in budget, and keeping work sites clean and safe. Communication with clients and reliability are at the core of my reputation and I always strive to keep disruption to a minimum. My areas of expertise include groundworks, conversions, roofing, carpentry, structural modifications, modular builds and landscaping.
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Latest review:
Groundwork & Foundations- 16 Aug 2020
Andy was professional, reliable and skilled. When problems arose in the work Andy dedicated his time to researching possible solutions and posing these to use before proceeding. Andy went above and beyond within this job and we are over the moon with the finished result.
Sean hemsley
No reviews yet
Extension Builder in Seaford
Hi, I'm a dedicated and experienced builder with a strong passion for quality craftsmanship and reliable construction. With over 14 years in the building industry, I’ve worked on a wide range of residential and commercial projects—from home renovations and extensions to new builds and structural repairs. I pride myself on attention to detail, clear communication, and delivering results that exceed client expectations. Whether you’re planning a small upgrade or a major construction project, I bring honesty, skill, and professionalism to every job.
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Bourne2build
No reviews yet
Extension Builder in Seaford
Friendly and reliable building Company Bourne2Build is a building company that aims to exceed their clients’ expectations, in turning their ideas into reality. They listen to their clients’ ideas, discuss the practicalities with them and then aim to create their vision. Adam Tennant has over 20 years’ experience as a builder, specialising in brickwork, and Anthony South has over 15 years as a carpenter, both working alongside an excellent team, ensuring specialist and high quality work.
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RWF Building Services
No reviews yet
Extension Builder in Seaford
Experienced Builder of 25 years. All building, carpentry and landscaping work undertaken.
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Lucas Evans Brickwork & Building Services
Rating: 5 out of 5
Extension Builder in Seaford
i’m a local man offering a high standard of brickwork and building services
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Latest review:
Landscaping- 3 Jun 2026
I recently hired Lucas and his team, and I couldn't be happier with the results. From start to finish, they worked incredibly hard and maintained the highest standards. Lucas is an absolute perfectionist, and it shows in every single detail of the project—the craftsmanship is top-tier and honestly the best job ever. On top of that, Lucas and his guys were exceptionally polite, punctual, and respectful throughout. It is rare to find a team that combines this level of skill and precise attention to detail with such a fantastic work ethic. I highly recommend Lucas and will definitely be using him again for future work!
Twelve Construction Ltd
Rating: 5 out of 5
Extension Builder in Seaford
We’re not your typical building company. Our story began when two pilots partnered with a highly experienced builder to take on property investment projects. After three years of working successfully together, we saw the value in combining the precision, attention to detail, and management skills of aviation with the builder’s incredible knowledge and hands-on expertise. That partnership became the foundation of our firm a team committed to delivering high-quality refurbishments, extensions, and home transformations with the same discipline and reliability we’ve built our careers on.
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Latest review:
We bought a run down flat in Brighton that needed a full refurbishment and some structural work. With a large garden, the guys at twelve designed and built a beautiful garden office for us too which has been such a brilliant space. We were worried costs would spiral out of control, but they gave us a fixed price contract and it really didn’t budge. Couldn’t be happier with them and Sam’s communication during the build really helped us keep on top of things even though we were not living in the area during the refurb. Great experience, and so chuffed with the outcome.
D.Jones
No reviews yet
Extension Builder in Seaford
DM building and carpentry based in East sussex with city and guilds qualifications, in the trades for 20 years. I’m experienced in all aspects of carpentry and general building
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FMK brickwork
No reviews yet
Extension Builder in Seaford
I’ve been an apprentice served bricklayer for over 25 years , all aspects of bricklaying are undertaken to a very high standard
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KTR Groundwork’s LTD
No reviews yet
Extension Builder in Seaford
I have recently started my own groundwork’s company KTR Groundwork’s after 8 years in the trade Working in many different aspect of groundworks for all phases of house build through road preparation, pool house, under pinning, patios driveways and tower block construction and civil, I’m looking to put my skills to work for myself and help bring to life projects that you will love to have and show off KTR pride itself on it work and high standards!
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Crowd9brickwork
New on MyBuilder
Extension Builder in Seaford
Experienced bricklayer with around 10 years’ experience in the construction industry. I take pride in producing high quality, clean and professional work, with a strong eye for detail and a focus on getting the job done properly. I’m reliable, hardworking and approachable, and I’m happy to take on everything from smaller brickwork and repair jobs to larger projects. I have experience working with a range of brick, block and masonry work and always aim to leave a tidy, quality finish. Whether you need a small job completed or are looking for someone reliable to help with a larger project, I’m happy to discuss your requirements and provide a straightforward quote.
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Nest builders Sussex ltd
No reviews yet
Extension Builder in Seaford
We are a Bricklayer and a Carpenter that came together 7 years ago to create Nest Builders. Combined we have experience in the trade that spans across 44 years. We first met as 11 year old boys and quickly formed a friendship. Nest Builders undertakes all aspects of building and carpentry. We have many project's under our belt, ranging from a brick wall to a whole new house. No project is too big or too small. We pride ourselves on the work we do, we treat each job as if it were our own homes and are likely the cleanest builders you’ll come across. Please do contact us so that we can help make your building visions come to life.
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City Craftsman Limited
No reviews yet
Extension Builder in Seaford
As a City and Guilds qualified carpenter and joiner,City Craftsman offer small jobs from hanging doors to full kitchen and bathroom refurbishments as well as Loft conversions and Home Extensions.
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Eastbourne Extensions Ltd
No reviews yet
Extension Builder in Seaford
Our aim has always been to be a company that people associate with quality, professionalism and customer satisfaction.
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Brockwitz Interiors
Rating: 5 out of 5
Extension Builder in Seaford
I am a passionate cabinet maker and joinery specialist with over 15 years experience. I have trained and worked for one of londons most reputable bespoke furniture and cabinetry companies and am able to provide the full Profesional package from design to installation. Above all i believe in honesty and in doing the job the right way, the first time. work garaunteed and references avaliable upon request.
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Latest review:
Carpentry- 21 Nov 2016
George designed, built, installed a set of custom-made doors for under my stairwell. Lovely guy, very courteous and pleasant to have around, and the work was precise and pleasing. I had one or two tweaks I needed done to the doors after the job had been completed which he helpfully came back and did for me. Happy to recommend him.
Samms Construction
No reviews yet
Extension Builder in Seaford
At Samms Construction we pride ourselves on attention to detail, efficiency, professionalism and customer relations. We ensure your project gets completed in time, within your budget and completed to design. Kitchen, renovations, bathrooms, extensions or even just general building. Samms Construction. We also specialise in bespoke wardrobes; utilising small or awkward spaces in your home into useful and decorative finishes for your clothes and accessories. This could include, tie rails, pull out shoe shelves, internal mirrors for getting ready for a special occasion (or in general) and draws.
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Bear & Fox Construction Ltd
No reviews yet
Extension Builder in Seaford
Bear & Fox Construction is a trusted building company delivering high-quality construction, renovation, and property improvement services. With a strong focus on craftsmanship, reliability, and clear communication, we work closely with our clients to bring projects to life—on time and to the highest standards.
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Top rated Extension Builders

Our Extension Builders in Seaford, are rated 4 out of 5 based on 4 reviews from customers like you.

Quality screening

Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

What types of services are offered by local extension builders in Seaford?

Building an extension is a major milestone for any home. It’s not just about adding extra space, it’s a big step that can transform how you live day to day, opening up new possibilities for comfort, lifestyle, and family needs.

This is why it’s so important to find the right extension builders in Seaford for you. They can help with a variety of tasks and projects, including:

Extending your home with an extra room
Two+ storey extensions
Adding partition walls to create more rooms
Building annexes or external structures

To find the right extension builder near you, simply post your job on MyBuilder. Explain the type of help you’re looking for, and then home extension builders in Seaford who are available and interested can respond to your post.

Browse profiles, read customer reviews and get quotes from your chosen Seaford extension builders, all before you decide who to hire.

What are the hourly rates of extension builders in Seaford?

Before getting started with your extension project, it’s important to have a clear budget in place. On average, extension builders in Seaford will charge between £16 and £42 per hour.

Single-storey rear extensions cost between £20,000 and £60,000 depending on size and finish.
The cost of double-storey extensions, which add more space and value, can range from £100,000 to over £170,000.
Larger wrap-around extensions that combine multiple extension types can range from £40,000 to over £120,000.

The cost of an extension will vary depending on your property. For instance, extending in certain areas may require structural adjustments to ensure stability, which can increase your material and labour costs.

To get an accurate price for your home extension, request detailed quotes from several Seaford extension builders near you on MyBuilder. This allows you to compare what each quote covers and how much your Seaford home extension project is likely to cost.

Find extension builders in Seaford with MyBuilder

Hiring the right extension builder in Seaford with MyBuilder couldn’t be easier. Just follow these simple steps:

Step 1: Post your extension project on MyBuilder

Whether you’re planning a single-storey extension, a loft conversion, or adding a new room, post your job on MyBuilder to find local Seaford extension builders. Once your job is live, we’ll share it with home extension builders in Seaford who can express their interest.

Step 2: Compare different extension builders in Seaford

When you start receiving interest, review profiles of local Seaford extension builders, check their previous work, and read real customer reviews. Ask about timelines, materials, and request detailed quotes.

Step 3: Hire Seaford extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Seaford, compare their experience, guarantees, and costs before choosing who to hire.

You’ll also have confidence knowing that every tradesperson on MyBuilder is verified through several checks, including:

ID verification: When a tradesperson joins MyBuilder, we ask for a valid ID, such as a passport, ID card, or eIDAS certificate.
Company verification: For tradespeople operating under a company, we make sure every tradesperson has a registered business.

Did you know? Our continuous monitoring and complaints process ensures that tradespeople who don’t meet our standards are promptly removed from MyBuilder’s platform.

Seaford extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Seaford extension builder before hiring?

Before hiring an extension builder in Seaford or extension building company in Seaford, ask a few key questions to make sure you’re choosing the right professional for your home extension project.

What qualifications and experience do you have as an extension builder in Seaford?

An extension builder in Seaford should have a strong track record with similar projects and relevant building qualifications or trade memberships, such as the Federation of Master Builders (FMB) or TrustMark.

Will my home extension meet all building regulations and planning requirements?

Your Seaford extension builder should ensure the project complies with Building Regulations and, where necessary, handle or assist with planning permissions. Ask how they manage building control inspections and what documentation you’ll receive once the project is complete.

What experience do you have with similar extensions in Seaford?

Ask to see examples of their previous work, or view examples of their work on MyBuilder. Ideally projects similar to yours in scale and design. This helps you assess the Seaford extension builder’s ability to deliver a result that meets your expectations.

How long will the extension take to complete?

Extension project timelines can vary depending on size, complexity, and weather. A typical single-storey extension might take around 8 - 12 weeks. Request a detailed schedule so you know what to expect and when key milestones will be reached.

Do you offer a guarantee for your work? Most Seaford extension builders offer a guarantee or warranty on their work, often between 1 and 10 years depending on the project and materials used. This gives you assurance that any issues will be resolved after completion.

If you still have questions about the professional you are looking to hire, we have a full detailed guide on hiring the right builder here.

FAQ: Common questions about home extensions in Seaford

Can an extension builder in Seaford help with planning permission?

Yes, many extension builders in Seaford can guide you through the planning process. They can help prepare drawings, advise on local requirements, and liaise with your local council to ensure your project meets all necessary regulations.

Can an extension builder in Seaford handle everything from design to construction?

Many Seaford extension builders offer full design-and-build services, managing both the architectural planning and construction stages. Ask your builder whether they can provide a complete package or if you’ll need to hire an architect or designer separately.

Will an extension builder in Seaford help with materials and finishes?

Yes, most extension builders in Seaford can source materials and offer advice on finishes that suit your design and budget. You can also choose to supply certain materials yourself, just make sure this is agreed upon before work starts.