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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Tom
Rating: 5 out of 5
Extension Builder in New Southgate
I have more than 10 years experiance in Handyman and all other jobs relative in house, I have responsablity and panctuel.
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Latest review:
Extensions- 9 Dec 2025
Had Tom in today and the service was excellent from start to finish. He was professional, efficient, and the quality of his work was spot on. Really impressed and would happily use him again.
Irz construction ltd
Rating: 5 out of 5
Extension Builder in New Southgate
Irz construction ltd was created 5 years ago always were recommend to costumers all around London Type of jobs we do Refurbishments Extension Loft conversation Gardening Driveways Painting decorating All projects we did are available to visit and see It in person also ask the owners about their experience with us The director has been 7 years on this industry previously managing another successful construction company
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Latest review:
Restoration & Refurbishment- 19 Nov 2019
Iljaz and his Team were brilliant! I was slightly concerned having no reviews. They found the leak, fixed it and patched up the wall in very tidy and professional manner. He did say he wouldn't be able to come today and updated me, however he made time to come in-between his day to sort out my issue. Not many true trades people like this and very honest and stuck to his word. I would definitely recommend him and would not hesitate to use his team again. Thank Iljaz!
Ioan Hrit
Rating: 5 out of 5
Extension Builder in New Southgate
With over 13 years experience I'm confident in all aspects of groundworks including new build and extensions from footings up to damp course, drainage and the slab construction, kerb laying, block paving; drives paths, slab laying, septic tank installation and soakaways.
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Latest review:
Groundwork & Foundations- 31 Oct 2025
Fantastic all round service. Ioan is very hard working, very knowledgeable in his field and is very well organised and experienced with the logistics and execution of all types of groundworks. I would highly recommend.
Neli Limited
Rating: 4.5 out of 5
Extension Builder in New Southgate
Neli limited builder’s are a company based in London with over 10 years of experience in our trade, We cover a whole range of jobs including: • Slabbing ( all types ) • Astro turf • Turfing • Decking • Fencing • Block paving Thanks Neli
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Latest review:
Landscaping- 6 May 2025
Great job in putting lots of porcelain tiles, new turf and new fence.
Done By Tom Ltd
Rating: 5 out of 5
Extension Builder in New Southgate
Welcome to Done by Tom – we offer a completely bespoke design and build service for the London private sector. If you’re looking for clever, stunning and energy-efficient construction as well as interior design, we are it. At Done by Tom, we’ve come up with a unique success formula when it comes to memorable design and construction: combining the interior design, architecture and construction process into one seamless dream to deliver according to our clients vision.
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Latest review:
Fireplaces & Flues- 13 Nov 2017
i was so so happy with the service completed by done by tom. I had a really urgent last minute job and they were able to complete all the work to a really high standard and with a great price. I would trust them to do any building work in my house and am happy to have found a trusted builder for future works. Would recommend to anyone
Samul Construction LTD
Rating: 5 out of 5
Extension Builder in New Southgate
Estimate Prices From: * Loft Conversion £50k(labour+materials+scaffolding) * Home Extensions £3-4k per square metre * Basement £3-8k per square meter (labour+materials). * Bathroom refurbishment £8k (labour).
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Latest review:
Demolition- 18 Oct 2011
Thank you very much - good job and good service. A real help!
Home Design & Build
Rating: 5 out of 5
Extension Builder in New Southgate
Tooled with years of experience, we undertake design & reconfiguration of builds; adding value to your home or business. Working closely with you; we create a bespoke, quality finish within your budget & affordability. Delivering a high standard of skill & integrity of craftsmanship we are proud off
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Latest review:
Kitchen Fitting- 24 Jun 2025
Lalli and her team were all very professional, communicative, and detail oriented helping us create a new kitchen and bathroom that we love, not to mention, on schedule! We would highly recommend Home Design and Build and hope to work with then again in the future.
Adrian
Rating: 5 out of 5
Extension Builder in New Southgate
Ady Construction Services LTD is a full-service building company providing high-quality construction, renovation, and property maintenance solutions across residential and commercial sectors. From groundwork, brickwork, roofing, and extensions to full refurbishments, kitchen and bathroom installations, landscaping, and decorating, we cover every aspect of building work. With a skilled team, attention to detail, and a commitment to excellence, we deliver reliable and cost-effective services tailored to each client’s needs — from start to finish.
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Latest review:
Landscaping- 23 Mar 2025
Great job - promptly done and good quality!
A. plastering
Rating: 5 out of 5
Extension Builder in New Southgate
Hi. My name is Fatos. I have been in construction for over 17 years. We undertake rendering, plastering and painting jobs. High standard finish in very competitive prices. We also do loft conversion,roofing, plumbing, electric, tiling, extension ect. Our prioritie is to get the job done in very high quality
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Latest review:
Plastering- 22 Oct 2024
We needed to plaster our house ASAP and Fatos completed it in a short time. The house looks amazing, he was quick, efficient and was a great communicator. I would highly recommend him.
Surflex Ltd
No reviews yet
Extension Builder in New Southgate
At Surflex Ltd, we specialize in renovation, refurbishment, and complete construction services. From flooring, painting, wallpaper, and decoration to full property upgrades, we provide everything homeowners need to transform their spaces. Why Choose Us Complete service – One trusted team for every stage of renovation and finishing Skilled craftsmanship – High standards of quality and attention to detail in every project Reliable delivery – Projects completed on time, with minimal disruption to your home Tailored solutions – Designs and finishes that reflect your style and needs Why Clients Trust Us We are committed to professional standards, honest communication, and long-lasting quality. Most of our business comes from recommendations and repeat clients, proving the trust we build with every project. With Surflex Ltd, homeowners can be confident their property is in safe, expert hands.
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Plastering and K rendering
Rating: 5 out of 5
Extension Builder in New Southgate
🏗️ General Builder • Roofing • Extensions • Refurbishment – London Looking for a reliable and professional builder in London? We provide high–quality construction and renovation services at competitive prices. ✅ Plastering & Insolation Silicone Rendering ✅ Our Services Include: • General Building & Refurbishment – Full house renovations, kitchen & bathroom fitting, plastering, flooring, painting & decorating. • Extensions – Single & double-storey extensions, side returns, rear extensions, loft conversions, and garage conversions. • Roofing Services – New roof installations, flat & pitched roofs, roof repairs, waterproofing, guttering & fascias. • Structural Work – Brickwork, concrete, foundations, and load-bearing alterations. 💪 Why Choose Us? • Experienced team with over 16 years in the trade • All work guaranteed & fully insured • Competitive, transparent pricing • Clean & reliable service – we treat your home with respect • Free, no-obligation quotes 📍 We cover all London postcodes – Central London,North, South, East & West.
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Latest review:
Plastering- 16 Mar 2020
Almed and his team came over to see the two bungalows and gave me a quote and was more reasonable than other quotes I had previously. Almed started the job and stated exactly what he was going to do from the beginning to the end of the job. He is a very professional and knowledgeable person and he and his team did a outstanding plastering job on my two bungalows and I’m very happy with the job and will highly recommend him for future projects. Thanks Zai
CM Building LTD
Rating: 5 out of 5
Extension Builder in New Southgate
At CM Loft Conversions, we specialise in luxury loft conversions, home extensions, and full refurbishments for both residential and commercial properties across London. Our dedicated team is renowned for transforming spaces with unparalleled craftsmanship and meticulous attention to detail. Whether it’s a high-end home, a modern office, or a commercial property, we deliver projects that elevate both form and function. By seamlessly blending design innovation with practical solutions, we ensure every project not only enhances the aesthetic appeal of a space but also maximises its value and usability. At CM Loft Conversions, we are passionate about creating bespoke spaces that reflect the unique needs of our clients. From concept to completion, we focus on the fine details and provide a smooth, stress-free experience. Whether you’re looking to transform your home, expand your business premises, or refurbish a commercial unit, our team is committed to delivering results that exceed expectations.
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Latest review:
I met Charlie and his team from CM Builders Ltd when they were completing a loft extension and ground floor extension for one of my neighbours. Quotation and budget I was given an estimate subject to drawings as I was on a strict budget that I had to keep to for the build. Charlie was able to help me keep to the budget, both at the final agreed plan and during the build. The project was complex in that whilst it was a loft extension, all of the house was rebuilt. The only thing kept was the external walls and first floor rafters. Whilst the footprint of the first floor was not being changed I wanted to bring it up to current building standards with extra insulation. All of the plumbing and electrics were also replaced including a new boiler. The overall build has come in on budget, save for agreed enhancements that I did not think of at the planning stage and or building regulations such as double ceiling fire plaster boards. There were also items such as the original stairs that I wanted to keep, but Charlie was able to increase the height space in the kitchen making the worktop much more usable for tall people for a larger part of the kitchen. These were suggested to me as potential options as part of the build. Stage payments The stage payments have all been sensible throughout the build and linked to the ongoing work schedule. I have not therefore had any concerns in this regard. Quality of work This was a very complicated build as unlike the ground floor the first and new second floor are “L” shaped. The new 2nd floor included an en-suite and 2 bedrooms. Overall the house has been increased from 2 bedrooms 1 bathroom, to four doubles and 2 bathrooms. The quality of work is excellent and Charlie project manages his team to ensure that they all deliver to a high standard- if it is not done correctlt they do it again, with Charlie spotting any issues. Timeline of build This has generally gone to plan very well. As with any build you have to be realistic as things will happen outside of anyone’s control. When issues have arisen Charlie manages them to a conclusion. Also be realistic if you are having to manage to a tight budget. I had to plan for various stage receipts of cash before I could order the kitchen and bathroom items - make sure you understand how this impacts the build and availability of the work force, recognising that CM Builders have to book kitchen fitters and plumbers. CM Builders are also very helpful in that they have sorted out issues with the brick work of my freestanding garage (nothing to do with the build) and also a neighbour’s wall that could have been dangerous to the public, should it have failed. Conclusion The whole family are very pleased with the outcome and we now have the equivalent of a brand new house that has been built to a very high standard. This has definitely been worth doing both from a valuation perspective and quality of life perspective. I would not hesitate to instruct Charlie and his team again.
My Home Services London Ltd
Rating: 5 out of 5
Extension Builder in New Southgate
My Home Services London Ltd is a professional construction and home improvement company specialising in bathroom and kitchen renovations, house extensions, loft conversions, and full property refurbishments. We also provide expert gas, electrical, electronics, and smart home (domotics) installation and maintenance services. Our team delivers complete, high-quality solutions designed to transform homes by combining functionality, comfort, style, and modern technology. From small upgrades to large-scale renovation and extension projects, we work with a safe, reliable, and professional approach tailored to each client’s needs and vision.
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Latest review:
Handyman- 29 May 2026
Absolutely fantastic service, they did a great job!!! Friendly and professional. I look forward to having them back for more jobs. 100% highly recommend!! Thank you very much!
Fussion Contracts
Rating: 5 out of 5
Extension Builder in New Southgate
Hello, I’m a carpenter with 6 years experience who specialises in small odd jobs and refurbishments . Have a small crew and subcontractors availible on requests or if needed for the job. Fully insured and with trackable references.
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Latest review:
Carpentry- 7 May 2018
Good guys, committed to making sure the job is done right and to high standard. Many thanks
Mad property care Ltd
Rating: 4.4 out of 5
Extension Builder in New Southgate
Professional builder with many years’ experience, I get the job done. In the 16 years spent in construction I picked the skills required to get the work done without the need of another specialist. I’m a carpenter by trade but I’m also a plumber & so much more, I’ve dealt with all kinds of trades, building control, engineers, architects, electricians.
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Latest review:
Conversions - General- 16 Apr 2024
Job completed. Very professional and efficient service. Would highly recommend.
BDS TM Limited
Rating: 5 out of 5
Extension Builder in New Southgate
FULL REFURBISHMENT ,HOUSE EXTENSION AND LOFT CONVERSION SPECIALIST,PAINTING, ELECTRICAL&PLUMBING
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Latest review:
Electrical- 18 Apr 2020
Ben fixed my lights and electrics in garden. He took his time and was punctual. Hes very helpful and resonable. i was very happy with his work, i would recomend him to anyone what a nice man.

Top rated Extension Builders

Our Extension Builders in New Southgate, are rated 4 out of 5 based on 17 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 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.