Extension Builders in New Cross

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (18 reviews)

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Some of our top rated extension builders in New Cross

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G S ELECTRICS
Rating: 4.7 out of 5
Extension Builder in New Cross
G S Electrics are NAPIT approved Domestic electrical contractors who provide flexible, planned, reactive electrical services that are professional, trustworthy and high quality. We provide our services to domestic properties throughout London. With extensive knowledge gained throughout university, having an BEng in Electrical and Electronic Engineering. I can put both theoretical and practical knowledge into use and provide the best solutions for technical problems.
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Latest review:
Electrical- 25 Feb 2020
Gurprith called me immediately and the job was booked in for the next day. He was speedy and efficient and helped with another electrical issue at no further cost. I would definitely use his services again and not think twice to recommend him.
Building Dimensions
Rating: 4.9 out of 5
Extension Builder in New Cross
Family run company with 25+ years experience in Building/ Decorating. Registered member of Fairtrades since 2002, guaranteeing a high standard of work. Our company provides a friendly, reliable, and professional service
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Latest review:
Extensions- 10 Oct 2022
Gary and Keith are excellent builders who know what they are doing. The did a great job building our extension and stuck to the brief, bearing with me changing my mind. They are not the quickest, but the job will be good when it gets done eventually.
WOODHOUSE BUILDERS LIMITED
Rating: 4.8 out of 5
Extension Builder in New Cross
Welcome to Woodhouse Builders Ltd, we cover all aspects of property maintenance and no job is too small or big for us. If it’s a small decorating job or full property renovation , loft conversion or extension , we are here to help and provide the best services possible . Our success is built on providing the best services and ensuring that all our customers are happy with our services.
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Latest review:
Extensions- 6 Apr 2020
Art & team did a brilliant job in building my rear extension and renovating the whole apartment. Communication was excellent throughout and the job was completed on time and to the agreed budget. The finish throughout was to a high standard. I would definitely work with these guys again and highly recommend. Regards MZ
N&D Brickwork Construction
Rating: 5 out of 5
Extension Builder in New Cross
Over 17 years experience doing all building work, building houses, extensions, garden walls and paving. Customer guarantee satisfaction
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Latest review:
Extensions- 1 Jul 2021
Great job done by Naim and his team. He expressed interest in the job as soon as I posted. If it hadn't been for some wet weather the job would have been completed much sooner in the timescale he quoted. There was one small issue some time after the job was completed. I only called Naim once and he arranged a day to come fix it. We're very pleased with the finish, we would give future work to him and also recommend him to friends & family.
A J Keating
Rating: 5 out of 5
Extension Builder in New Cross
Hello we are a family firm based in north London. With more than15 years experience doing mostly exterior work. We enjoy difficult jobs and like a problem to be solved. Retaining walls, drainage, foundations are our bread an butter.We pride ourselves on a great job at a fair price.
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Latest review:
Groundwork & Foundations- 30 Aug 2022
Axel & his team have done a huge amount of work for us through 2022. They started by building the foundations, and then also built the block walls and the structure for the roof. They also constructed an entire extra timber framed shed. After more than four months of working for me constantly I can say that I'm very happy with the quality and speed of Axel's work. He has worked through all the work we have given him, and all the extra issues that came up, with a pragmatic and competent approach. The site today is unrecognisable from when he arrived (he also removed several tonnes of soil for us etc), and I would hire him again without reservation.
Sd building contractors ltd.
Rating: 5 out of 5
Extension Builder in New Cross
I am in this trade from 2010
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Latest review:
Ranjit has done two full house renovations for me and I can confirm he is absolutely brilliant. He is professional and polite. His work and knowledge of the building industry is top class and the finishing is immaculate and perfect.i highly recommend him
Jwolfconstruction ltd
Rating: 5 out of 5
Extension Builder in New Cross
My name is George and I'm running J Wolf Construction building company. I can provide a lot references from happy customers in sw London.
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Latest review:
Extensions- 26 Nov 2019
Great on delivery, good on project management....rate them very high on integrity and transparency
Azure Notions Limited
Rating: 5 out of 5
Extension Builder in New Cross
Azure Notions Ltd based in South East London with a geographical coverage across the whole of London, South East and home counties. Azure Notions are a highly respected contractor delivering new build, refurbishment, project management and design and build solutions to public and private sector clients. Azure Notions specialises in the education, high quality residential and commercial sectors across which the company has developed an extensive and diverse portfolio.
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Latest review:
Fencing- 22 Jun 2023
Didn't end up using them however they took time to come and quote me and was very professional.
KNIGHTBRIDGE-ONE LTD
No reviews yet
Extension Builder in New Cross
Our mission is clear – to transform spaces into timeless works of art that seamlessly blend form and function. KNIGHTBRIDGE-ONE is driven by a passion for creating environments that not only meet our clients’ aspirations, but exceed them. Our diverse portfolio spans from groundbreaking new build works to the meticulous integration of landscape architecture, ensuring each project is a testament to our unwavering pursuit of perfection. Making innovation and expertise in design and build for conversions, extension and alteration works.
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edss construction ltd
Rating: 4.2 out of 5
Extension Builder in New Cross
We deliver a professional building service and will work with you step by step from inception of idea through to completion, in order to meet all your personal requirements. We understand that undertaking building, construction or refurbishment on your home or property can feel like a very daunting task and finding the right builder can be an even bigger challenge. As reputable building contractors we can provide you with local face to face references from previous clients and recent examples .
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Latest review:
Extensions- 4 Jul 2026
We posted our building project on MyBuilder for the construction of a new outbuilding. We received a number of responses and quotes and selected EDSS Ltd. My elderly mother had used EDSS Ltd previously to do a number of renovations to her house and we found EDSS Ltd’s quote competitive and fully broken down. The work completed to date has been high quality with a high level of attention to detail. Stefan and his team managed the project from start to finish. This has included liaising with building control and other parties. We did not have to worry about any detail and Stefan always goes the extra mile to reduce any inconvenience. Stefan and his team were reliable, hardworking, approachable and always willing to discuss any questions we had during the build. The work was completed to a very high standard and we were kept informed throughout the project. We have no reservations in recommending EDSS Ltd and are happy for customers to see the work.
The london Loft and Kitchen Company
Rating: 4.5 out of 5
Extension Builder in New Cross
We are a southwest London Based loft and kitchen extension specialist. Our working area is very small with 90% of our jobs in Wandsworth and any work outside this area is never more than a mile or two away. With over 15 years experience in this area we know inside and out how these properties were built so when it comes to structural alterations you couldn't be in safer hands.
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Latest review:
Extensions- 16 May 2017
Initially apprehensive about using mybuilder, we found David easy going, clear and concise from the offset. The work carried out was to a high standard and any changes or questions that arose he was all to happy to answer. We found him to be pro-active in his approach, open and honest with how much items cost and sensible when agreeing monthly valuations. Both of us work in the construction industry and it is enjoyable and a breath of fresh air when you get to work with people as straight forward a David. We hope to do work with him again and would be happy to talk with anyone who is considering taking him on for additional work. Many thanks, Rob and Brom
Primefix uk
No reviews yet
Extension Builder in New Cross
PRIMEFIX Contractors LTD Reliable. Fast. Professional. At PRIMEFIX Contractors LTD, we help homeowners, landlords, and letting agents keep their properties in perfect condition — without delays, stress, or hidden costs. We understand how important it is to get jobs done quickly and properly the first time, especially when dealing with tenants or ongoing property maintenance. That’s why we focus on fast response, clear communication, and high-quality workmanship. Our Services: Emergency call-outs Handyman services Painting & decorating Plumbing Electrical works Door installation & repairs Kitchen fitting Bathroom refurbishment Full property renovation What You Get With Us: ✔ Fast and reliable service ✔ Fully insured professionals ✔ Clean and tidy workmanship ✔ Honest, transparent pricing ✔ Flexible availability (including urgent jobs) ✔ Trusted by landlords and letting agents We don’t just complete jobs — we build long-term relationships with our clients by delivering consistent quality and dependable service. Whether you need a quick repair or a full refurbishment, PRIMEFIX Contractors LTD is ready to take care of it.
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pmlarc
Rating: 5 out of 5
Extension Builder in New Cross
We are RIBA registered architects with a wide range of experience of over 25 years within architecture, design and construction. We are experienced at new builds, full refurbishments, extensions and conversions, and have completed numerous residential and commercial projects in London and beyond.
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Latest review:
Architecture- 13 Apr 2015
We are extremely happy we chose to use Phil for our loft and extension design. Phil is professional, extremely accommodating and a pleasure to work with. He was always contactable, punctual and happy to spend a lot of time with us to discuss designs and the planning process. His design ideas were smart and he presented us with a number of workable options. We wouldn’t hesitate recommend Phil and would certainly use again for any architectural works.
Lux Contracts Ltd
Rating: 4.9 out of 5
Extension Builder in New Cross
LUX contracts are a friendly,family run building contractor. We carry out all types of construction projects; refurbishments, kitchen and bathroom installations, conversions, extensions and electrical projects.Our team of tradesmen have many years of experience. We have completed numerous projects working closely with clients to ensure we understand and deliver a very high standard, meeting the clients requirements and expectations .
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Latest review:
Extensions- 22 Apr 2019
Richard and his team have always been very hard working, respectful and professional throughout the project. We have had an extension, utility and bathroom/toilet renovation and we are very happy with the quality of work. It has transformed our home into a beautiful living space. Richard was very helpful when giving advice on materials we were choosing. The team were very accommodating to our needs, easy to work with and always tidied up after themselves. The payment schedule made it easy to keep on top of the budget and pay for any optional extras along the way. The building work was completed within the set timescale and to a high standard. We would highly recommend Lux for any building/renovation work.
Lto construction
Rating: 5 out of 5
Extension Builder in New Cross
We are a family run building company with years of experience. We fully commit ourselves to each and every project and try our hardest to exceed our clients expectations.
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Latest review:
Bricklaying- 23 Oct 2018
Tony and his team were phenomenal! Professional, courteous, reliable, tidy and quick. Tony's communication throughout the build was consistent, clear and precise. Tony really listened to me throughout the process; provided advice and options but most of all completed the project the way I needed it. The whole build went exceptionally smoothly, was finished ahead of schedule and on budget. Tony's workmanship is excellent and the final finish spot on. I was really worried about finding the right builder for my project... I simply could not have found better. I got several quotes from different providers and Tony's represented the best value for money. I highly recommend Lto builders, you will not be disappointed.
AL Construction
No reviews yet
Extension Builder in New Cross
Hi, I’m Alex. I run a small team specialising in general construction and property refurbishments across South East London and beyond. No job is too big or too small — from repairs and renovations to complete refurbishing projects, we handle it all with attention to detail and reliability. If a project requires specialist skills, I work with a trusted network of subcontractors to make sure every part of the job is done to a high standard. I take pride in delivering quality work, on time, and keeping my customers happy.
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3.9

Top rated Extension Builders

Our Extension Builders in New Cross, are rated 3.9 out of 5 based on 18 reviews from customers like you.

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

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

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

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

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

Find extension builders in New Cross with MyBuilder

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

Step 2: Compare different extension builders in New Cross

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

Step 3: Hire New Cross extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in New Cross, 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 Cross extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a New Cross extension builder before hiring?

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

An extension builder in New Cross 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 Cross 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 Cross?

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 Cross 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 Cross 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 Cross

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

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

Many New Cross 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 Cross help with materials and finishes?

Yes, most extension builders in New Cross 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.