Extension Builders in Newhaven

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 5 (6 reviews)

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Some of our top rated extension builders in Newhaven

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Special Trowel Service
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Extension Builder in Newhaven
I’m a qualified bricklayer with 33 years experience, I specialise in reporting brickwork
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SB Brickwork
No reviews yet
Extension Builder in Newhaven
10 years experience, East Sussex area, brick repairs, extensions, walls, steps ect
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Mocus Interiors
No reviews yet
Extension Builder in Newhaven
AMBG Construction Is made up of two highly experienced top tier contractors working in a newly formed partnership providing residential renovations and a bespoke fine carpentry service with attention to detail being paramount from the offset through to the completion of any project.
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Tjs masonry
Rating: 5 out of 5
Extension Builder in Newhaven
At TJS Masonry & Stoneworks we are new to My Builder but far from new to the trade with over 15 years experience, we work to very high standard to ensure a very happy customer. We take pride and care in every aspect of work we carry out. - Stonework - Flintwork - Brickwork - Patio’s - Re- pointing - General building Works.
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Latest review:
Stonemasonry- 8 Sep 2021
Work completed efficiently and thoughtfully. Cooperated with our need for relative quiet due to our working from home!
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No reviews yet
Extension Builder in Newhaven
Creating places people can call home. Established in 2007 we pride ourselves on adding value and producing a product the customer can be proud of. We started as an electrical contractor and have since grown in the industry and take on most aspects of development related works.
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Mamba Developments LTD
No reviews yet
Extension Builder in Newhaven
We are Mamba Developments a full service construction company that provide every you need from building works (extensions, loft conversion, kitchen, bathrooms, decorating and bespoke carpentry) However big or small your project we would be delighted to help.
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J b carpentry
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Extension Builder in Newhaven
Jb carpentry .
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unique finish
Rating: 4 out of 5
Extension Builder in Newhaven
Hi there and welcome to Revive And Build ltd A family ran business with over 40+ years of experience in the building and construction industry. Here we carry a reputation for quality workmanship with 90% of our work coming from repete business and recommendations which all stems from our core values of building strong relationships with clients, professionalism and making sure your left with a beautifully finished and fully functional project.
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Latest review:
Plastering- 20 Dec 2025
Didn't even turn up to do the job that was all booked in. Just went radio silent won't answer phone calls or texts. Absolutely rude. Do not use this person he's a fraud.
Algis
No reviews yet
Extension Builder in Newhaven
I am a trained bricklayer and general builder. I have had over 12 years experience and offer a reliable and professional service. I specialise in brick work. I have a wide range of experience from extensions, garden walls, alterations, repair and repointing.
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Saint Carpentry
No reviews yet
Extension Builder in Newhaven
Specialists in loft conversions and extensions.
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DANCY BUILDING CONTRACTORS
Rating: 5 out of 5
Extension Builder in Newhaven
Dancy Building Contractors Limited is based in Steyning, West Sussex, we specialise in large-scale home extensions and conversions involving structural works. Whether you're a homeowner looking to transform your space or an architect seeking a trusted construction partner, our team brings the experience, precision, and reliability required to deliver exceptional results. A building contractor that cares, and priorities your requirements and expectations.
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Latest review:
Groundwork & Foundations- 4 Jan 2023
Work has not commenced yet due to first the ice and now the rain. But we have been communicating. But can follow through as soon as work complete. Thank you.
A.T.Brickwork
Rating: 5 out of 5
Extension Builder in Newhaven
A.T. Brickwork specialises in all types of Brickwork/Groundwork and Hard Landscaping. We have undertaken English Heritage listed contracts grade 1 and 2. From the smallest of jobs, to the largest we aim to provide the best service, quality and rapport with our clients.
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Latest review:
Conversions - General- 21 Jun 2023
Was very easy and polite to deal with. He did an excellent job relaying our patio and am very pleased with his service. He left the site in a very tidy state and would definitely use him again.
Eboda Construction Limited
No reviews yet
Extension Builder in Newhaven
We are a carpentry and construction company specialising in high-quality building and finishing work across residential and commercial projects. Our services cover all aspects of carpentry and general construction, including first-fix and second-fix carpentry, full refurbishments, extensions, and new builds. A key part of our work is kitchen fitting, where we install complete kitchens from start to finish. This includes unit installation, worktops, appliances, and detailed finishing, working closely with other trades to ensure a high-quality, functional, and visually impressive result. Our projects range from initial structural work and framing through to final finishes such as roofing, flooring, joinery, bespoke woodwork, and fitted interiors. We take pride in delivering work that is safe, durable, and completed to a high standard, always in line with drawings, specifications, and client expectations. Attention to detail, pride in workmanship, and a strong commitment to health and safety are at the core of everything we do. We value reliability, teamwork, and a professional approach on every site.
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Renown Development
No reviews yet
Extension Builder in Newhaven
Complete Domestic construction. Specialising in Extentions, Kitchens and bathrooms.
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Penrose Carpentry
No reviews yet
Extension Builder in Newhaven
I am a carpenter with over 20 years of experience and can cover all aspects of 1st and 2nd fix carpentry. I like to specialise in cut and pitch roofing and will install all the components that will allow the roof to be weathered, including roof windows, leadwork, battern and tiles. I take pride in my work, which is finished to a high standard and that guarantee.
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DJF brickwork specialist
Rating: 5 out of 5
Extension Builder in Newhaven
Hi my name is Dave, and I'm a Repointing and brickwork specialist. All aspects of building works undertaken. Over 17 years experience in the building trade, working with local councils, including (east sussex and wealden Council) maintaining properties offering a wide range of building services. And also work with local reliable building company's. The type of work we offer and carry out daily include grinding out and repointing,(using the latest dust extractors), brick replacement, installing cavity trays, lintel replacement, helical wall tie installation services, retaining walls, patios, extensions, footings and concrete pads ,and much more. All work completed to a high standard, fair price and a professional service. Liability cover £3,000,000 RCBI4448405XB1 Company website coming soon! Many thanks for reading
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Latest review:
Repointing- 8 Apr 2024
David and his team done a fantastic job on my patio! and are soon to start the grinding out and repointing on my house. Neat tidy and Highly recommended!

Top rated Extension Builders

Our Extension Builders in Newhaven, are rated 5 out of 5 based on 6 reviews from customers like you.

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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 Newhaven?

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 Newhaven 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 Newhaven who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Newhaven?

Before getting started with your extension project, it’s important to have a clear budget in place. On average, extension builders in Newhaven 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 Newhaven extension builders near you on MyBuilder. This allows you to compare what each quote covers and how much your Newhaven home extension project is likely to cost.

Find extension builders in Newhaven with MyBuilder

Hiring the right extension builder in Newhaven 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 Newhaven extension builders. Once your job is live, we’ll share it with home extension builders in Newhaven who can express their interest.

Step 2: Compare different extension builders in Newhaven

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

Step 3: Hire Newhaven extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Newhaven, 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.

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

What to ask a Newhaven extension builder before hiring?

Before hiring an extension builder in Newhaven or extension building company in Newhaven, 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 Newhaven?

An extension builder in Newhaven 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 Newhaven 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 Newhaven?

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 Newhaven 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 Newhaven 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 Newhaven

Can an extension builder in Newhaven help with planning permission?

Yes, many extension builders in Newhaven 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 Newhaven handle everything from design to construction?

Many Newhaven 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 Newhaven help with materials and finishes?

Yes, most extension builders in Newhaven 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.