Extension Builders in New Southgate

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4 (17 reviews)

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Some of our top rated extension builders in New Southgate

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Andrei
Rating: 5 out of 5
Extension Builder in New Southgate
Walls and ceiling repairing and painting .(skirting, frame ,doors etc) From fixing and finishing to the final coat — we handle everything ourselves. Patch repairs, taping and jointing for a flawless surface, plus full painting work. No need for anyone else, we’ve got every part covered.
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Latest review:
Painting & Decorating- 2 Sep 2026
Really pleased with Andrei’s work. He did a great job with the rooflights and other decorating work, and the finish looks really clean. He was reliable, tidy and took care to get everything right. Would definitely recommend and use him again.
Amrit
No reviews yet
Extension Builder in New Southgate
Hi , my name is Amrit I have 15 years plastering experience me and my team will give our best
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MGB SOLUTIONS LTD
Rating: 4.4 out of 5
Extension Builder in New Southgate
Professional Kitchen Fitter with 20 years experience.
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Latest review:
Kitchen Fitting- 18 Nov 2025
Original timeline stretched a bit due to his other jobs but this was fine. Mario started work early and finished early which suited us. He came to visit and we agreed a price at the start and he stuck to it even when he realised some additional plumbing would be needed. He was honest about some accidental damage. Attention to detail is good and he has all the kit. I would have given 5 stars- he's a proper professional and I enjoyed working with him. 3 stars only because as soon as the work was done he became incommunicado (I messaged a week later to ask how to lift door which had dropped down a few mm on fridge). The warranty advertised is one of the reasons I went with MGB which was £200 more expensive than contenders so this was disappointing. I would have asked him to do my parents' new kitchen too otherwise.
Dana Business Group LTD
No reviews yet
Extension Builder in New Southgate
Dana Business Group Ltd – Property Renovation, Extensions & Loft Conversions Dana Business Group Ltd provides professional renovation, construction, and repair services for houses and apartments. We undertake projects of any size, from small repairs to full refurbishments, house extensions, and loft conversions. Our services include: * Full and partial property renovations * House extensions and structural works * Loft conversions * Kitchen and bathroom fitting * Plumbing services * Electrical works * Painting and decorating * Flooring installation * Plastering and drywall * General maintenance and repairs We guarantee high-quality workmanship, reliable service, and strong attention to detail. Free quotes available. Competitive prices. Flexible scheduling.
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H&R construction
No reviews yet
Extension Builder in New Southgate
Small enough to care big enough to cope!!
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Builder and decorator Ltd
No reviews yet
Extension Builder in New Southgate
18 years experience, for last six years as a limited company. Fully insured. We deal with building up extensions, lofts conversion from the basic construction to decorations. Working hard to keep my customers satisfied by high quality work. Friendly and reliable team.
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BLUE LOFT CONSTRUCTION LTD
No reviews yet
Extension Builder in New Southgate
Design, Build & Remodel We pride ourselves on our commitment to provide a professional and speedy service at all times, whilst maintaining the highest quality of work. We take on all types of jobs from small domestic work to larger commercial projects, all carried out to the highest standards, and at very competitive prices. We take on all building work from plumbing and electrics to conversions and extensions. Contact us today to discuss your requirements.
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RM constraction
No reviews yet
Extension Builder in New Southgate
I am a building contractor with many years of experience. I can build your house extension, a garage, conservatory, a loft and any wall. I also work with renovations, so if you would like to finish the extension inside out or simple changing the look of your bathroom or kitchen look no further.
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HUB Property
No reviews yet
Extension Builder in New Southgate
We provide architect drawings and party wall services. Our expertise, attention to detail, and client-centric approach set us apart. Contact us for accurate and compliant drawings and expert guidance in resolving party wall matters. Satisfaction, professionalism, and integrity are our priorities.
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CPS
No reviews yet
Extension Builder in New Southgate
At CPS we are a family run business, with over 50 years experience in the trades industry, holding all relevant NVQ’s and qualifications. We take on all types of works, including but not limited to renovations/refurbishment, demolitions, extensions/conversions and landscaping. We take pride in finishing our works to the highest standard. We strive to be the best.
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Akash
No reviews yet
Extension Builder in New Southgate
We can work all over London
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Garnet Construction Ltd
Rating: 4 out of 5
Extension Builder in New Southgate
Garnet Construction has over 10 years' experience in the industry and specialise in loft conversions, all types of extensions and complete renovations. Priority is given to the design and construction of all our projects with a unique obsession to strive for perfection.
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Latest review:
Extensions- 18 Sep 2019
To start off with the job went reasonably well - we were happy with the workers and the progress. but when we neared completion the work slowed up we waited 3 months for a response from Jordan. we had an issue where his plasterer hid the plumbing access in the wall. - This cost us £500 to sort and re-decorate so we came to an agreement that this was fine and at the time i presumed that Jordan was going to sort out the building control. so we then chased and chased but obviously since he had his money he wasn't interested he answered the phone and hung up. so we called building control and there are 2 small bits to fix which are all due to his work not being up to scratch. obviously i will be paying out for this - so please be careful when using him and dont pay him until you have all of the documents as he will not resolve any issues after being paid. i have had 2 previous building projects and this was by far the worst experience going. avoid dont use him thanks
Av building services
No reviews yet
Extension Builder in New Southgate
Business run by Adrian with more than 20 years of experience in general building. Public Liability Insurance holder.
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Kodi construction
No reviews yet
Extension Builder in New Southgate
We are a trusted building and renovation specialist, dedicated to creating high-quality home extensions that enhance space, functionality, and value. With a team of experienced designers, builders, and project managers, we deliver tailored solutions from initial concept to final completion. Our focus is on craftsmanship, communication, and customer satisfaction. Whether you’re expanding your living area, adding a new kitchen, or transforming your home with a two-storey extension, we combine technical expertise with architectural vision to bring your ideas to life — on time and within budget. We also carry out all Home improvement works .
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Care and Bussiness ltd
No reviews yet
Extension Builder in New Southgate
We specialise in managing residential renovation and conversion projects from start to finish. We work with a trusted network of qualified trades and ensure projects are delivered on time, on budget and in line with building regulations. We focus on communication, quality control and smooth coordination between client and trades.
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The Fitted Space & Renovation
New on MyBuilder
Extension Builder in New Southgate
The Fitted Space & Renovation specialises in high-quality property restoration, refurbishment, renovation, and bespoke fitted solutions. We help homeowners transform their spaces by combining skilled craftsmanship, thoughtful design, and reliable project delivery. Our services include full and partial home refurbishments, kitchen and bathroom renovations, bespoke kitchen and bathroom cabinet design, manufacture and installation, fitted wardrobes, built-in storage solutions, carpentry, and interior finishing works. From restoring older properties to creating modern, functional living spaces, we work closely with our clients to understand their needs and deliver solutions tailored to their lifestyle. Our team focuses on quality materials, attention to detail, and excellent workmanship throughout every stage of the project — from initial design and planning through to final installation. At The Fitted Space & Renovation, we are committed to delivering beautiful, practical, and long-lasting spaces with clear communication, professional service, and customer satisfaction at the heart of everything we do.
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Top rated Extension Builders

Our Extension Builders in New Southgate, are rated 4 out of 5 based on 17 reviews from customers like you.

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

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 New Southgate 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 New Southgate who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in New Southgate?

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

Find extension builders in New Southgate with MyBuilder

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

Step 2: Compare different extension builders in New Southgate

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

Step 3: Hire New Southgate extension builders with confidence

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

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

What to ask a New Southgate extension builder before hiring?

Before hiring an extension builder in New Southgate or extension building company in New Southgate, 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 New Southgate?

An extension builder in New Southgate 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 New Southgate 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 New Southgate?

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 New Southgate 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 New Southgate 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 New Southgate

Can an extension builder in New Southgate help with planning permission?

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

Many New Southgate 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 New Southgate help with materials and finishes?

Yes, most extension builders in New Southgate 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.