Extension Builders in New Cross

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.8 (20 reviews)

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Some of our top rated extension builders in New Cross

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Onyx Services Limited
Rating: 5 out of 5
Extension Builder in New Cross
Onyx services Ltd which is part of the Wigwam construction Group has been in the home improvements business for many years. All engineers are Gas safe and NIEIC registered. We undertake all types of building, construction, plastering, painting as well as heating, plumbing & electrical installations. Onyx has £5 million public liability insurance. All work comes with written garuantee. All major debit/credit cards accepted.
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Latest review:
Extensions- 13 Feb 2025
Shami and his team had been fantastic from start to finish! Before hiring his team he showed me around a house his team built, which was amazing to see. His communication was excellent throughout the progress of my renovation and very reassuring. Even as I had made changes to the build, he was very helpful in planning and adjusting to my needs. His team had built a single floor rear extension, including a new kitchen, bathroom suite, full electric rewire and plumbing from scratch. Also, comparing his team with six other builders, he had one of the most competitive quotes for the build. Post finishing the job, any issues I had were resolved immediately putting me at ease! I would definitely hire Shami and his team for any future jobs.
New Design
Rating: 4.7 out of 5
Extension Builder in New Cross
My name is Carlos, I have a construction company alongside my business partner and daughter Claudia. We are dedicated in everything related to painting, decorating, plastering, tiling, landscaping, flooring, interior finishings and general building works. We are professional, honest and hard-working individuals. Flexible and reliable builders with over 30 years of experience (operated in Spain and currently operating in London for more than 10 years). We guarantee we will not disappoint you. We offer ‘no obligation’ quotes. Photos and references upon request.
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Latest review:
Painting & Decorating- 3 Sep 2024
Great, reliable contractors. Had a full flat repaint job with some minor repairs (blinds fixing, handle replacement). Claudia was very efficient and responsive in communication. All was arranged pretty quick, appointment attended on time and kept to time schedule agreed. Had done a great job with repaint and provided reasonable rates. Also helped out with few minor repairs so I didn't have to get someone else. Very happy with the service , will certainly hire again. Thank you guys.
DTS Builders Ltd
Rating: 5 out of 5
Extension Builder in New Cross
All aspects of brick and block and stone work, new builds, extensions garden walls. Patios brick repairs, pointing. & refurbishments 20 years experience.
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Latest review:
Bricklaying- 28 Apr 2019
Dritan and his team we professional and completed a job well done. From the beginning Dritan was easy to work with , very friendly and approachable team. Dritan was extremely helpful in making a few suggestions to improve the wall and prevent future damage. I’m very pleased with the finished works. I would highly recommend Dritan and dts builders. Well done guys was great to work with you.
REWORKS LONDON LTD
Rating: 5 out of 5
Extension Builder in New Cross
Our team comprises eager on-demand workers, with years of experiences, who deliver exceptional services to both residential and commercial customers all around London. Whether you need a painter that will not miss a single mark, or an electrician that assists you in emergencies, we will make sure to send you our specialized and competent workers for all your needs.
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Latest review:
Gas Work- 11 Dec 2020
Repaired and very happy!
Omar Construction LTd
Rating: 5 out of 5
Extension Builder in New Cross
Omar Construction is a family-owned limited company situated in London that has been around for several years undertaking all kinds of construction work such as loft conversions, extensions & refurbishments. We have one simple policy; Make the Customer Happy. For several years we have managed to uphold this very simple policy. With over 21 years of industry experience and an elite team of reputable tradesmen, let us be your first choice, to make your dream project a reality.
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Latest review:
Extensions- 16 Oct 2022
Amazing people ,glad I went with them to do the extension ,they did a really wonderful job .Now we have a builder and a friend to rely on .Thank you very much Mustafa,Omar,Imran and Hamid ,you guys are awesome 👍
Robert Krysta
Rating: 5 out of 5
Extension Builder in New Cross
I started trading in 2004 as bathroom and kitchen fitter. Since then I've done many projects, those large and really small. All jobs were finished with great attention to details, satisfaction and great appreciation of all my clients.
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Latest review:
Bathroom Fitting- 1 Nov 2024
Absolute expert at his craft and pleasure to work with. Thank you 👍
I. N.S CONSTRUCTION & LANDSCAPE LTD
Rating: 5 out of 5
Extension Builder in New Cross
We beat all the quotes!
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Latest review:
Extensions- 22 Dec 2025
Good honest communications, good work progress and easy to get on with. Mutual respect shown both sides.
RIVIERA PLUMB LONDON
Rating: 3 out of 5
Extension Builder in New Cross
Riviera plumb offer bathroom refurbishment and reactive plumbing maintenance over south east London, well established since 2018 in England, and since 2008 in Cannes ( France ) we offer a reliable service and we pride the quality of our workmanship as much as our customer service
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Latest review:
Bathroom Fitting- 21 Jun 2022
We are not entirely satisfied with Ludovic's work. Some of the tiles were not cut to the correct messurement which left big gaps in between. Worse still, the grouting was very messy and did not have a smooth finish. We will now have to get another Tiler to redo some of the tiling work. Overall, it was not a professional job and we are not very happy with his workmanship.
ResidentDevelopments
Rating: 5 out of 5
Extension Builder in New Cross
Conceiving and delivering aspirational residences, for the Resident.
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Latest review:
We have previously been burnt working with self proclaimed tradesmen. The organisation is professional and customer focussed. Working with them was a pleasure, I couldn’t recommend them enough.
WHG Consultancy Ltd
Rating: 5 out of 5
Extension Builder in New Cross
Award winning builders in South West and Central London. We offer a complete range of design and build services for residential and commercial customers include new build developments, renovations, refurbishments, reconfigurations, extensions, bathroom and kitchen fitting, as well as bespoke carpentry, joinery and electrical work. We think your property is as individual as you are and help you to achieve your ideal home through our highly skilled & experienced team of designers and builders.
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Latest review:
Restoration & Refurbishment- 28 Dec 2015
I did quite a bit of research before choosing Battersea Builders. They didn’t come in with the cheapest quote but I never base my choice on price alone. And it wasn’t miles above the other quotes I got. Instead, I chose them because they ticked a lot of boxes including a) good independent reviews, b) a dedicated PM, c) qualifications, d) quick responses, e) a decent website etc. Overall, they did a fantastic job. The quality of the work and finish is really good. The PM, Tommy, was really helpful throughout and the team was very polite and conscientious. They were also on site every day as promised and didn’t play that old builders trick of getting the job and then going offsite to secure another job elsewhere (resulting in the deadline being missed). Was it perfect? No, but then not many projects are. I have a few minor comments including the fact there was a misunderstanding about the quality of bathroom cupboard I needed so the original quote was insufficient and costs had to be increased half way through the project. Despite this issue, Tommy did his best to keep the extra costs down. One other niggle was that I asked them to keep all the manuals and instructions for all the fittings but they threw them out. Not a big deal but quite annoying. Overall, it wasn’t cheap but I would use them again because the work was done to a high standard and the team were a pleasure to work with.
Master Builders Developments Ltd
Rating: 4.6 out of 5
Extension Builder in New Cross
Newly Joined My Builder, We are a established Building firm specialising in Extensions, Loft Conversions and Refurbishments, we undertake commercial projects along with substantial size constructions. Our team over all elements of construction.
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Latest review:
Roofing (Pitched)- 26 Sep 2024
Keep this company as first choice for ur building work.
Done By Tom Ltd
Rating: 5 out of 5
Extension Builder in New Cross
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
JED BUILDERS LTD
Rating: 5 out of 5
Extension Builder in New Cross
A limited company established in 2016. More that 8 years experience in construction business. We undertake all building works, big or small, managing and looking after project so the client can have the best results possible.
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Latest review:
Kitchen Fitting- 14 Dec 2018
Very lovely and professional and clean. Very prompt/punctual and worked efficiently , will be using them again to do more work in my property. Definitely with recommend them to anyone ! 10/10 from me ! Good service delivery
D A Lynch Building Services Ltd
Rating: 5 out of 5
Extension Builder in New Cross
Hi my name is Dwight. I'm here from D A Lynch Building Services Ltd. I am here to provide you with excellent building work and whatever else you have to do around your home. My company carries out work to the highest quality with professional workmanship.
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Latest review:
I was very pleased with this company so much so that they are starting a new job for me November 15. The building firms carried out a full loft conversion for me installing bathroom, brickwork, joinery, plastering, Roofing and installation of windows and double glazed doors. I have high standards and want everything to be completed in the same way, the workmen respected my home and always left if clean. My main contact was with the owner of the company Dwight Lynch, he was very flexible and Nothing was too much for him to do. He has an attitude which I like in a builder "customer not always right but must be happy" he provided me with ideas along the way and where things did not go to plan due to my own instructions he worked around the issue and provided suitable alternative options. I was very happy with the pricing of the job and feel that certainly I would recommend him and also I would use him again. He and his workmen were all trust worthy and I gave them keys to my house to carry-out work whilst I went on holiday. I had no concerns when I came back everything was as I left it.
Arliss page Carpentry & Joinery Ltd
Rating: 5 out of 5
Extension Builder in New Cross
Arliss Page Carpentry and Joinery Ltd is a small friendly and reliable business with more than 10 years’ experience, specialising in all aspects of carpentry and joinery. We pride ourselves in delivering high quality customer focused carpentry and joinery to customers in the east London and surrounding areas. Our team is professional, hard-working and committed to the needs of our customers and exceeding their expectations. We offer a hassle free, and affordable service with high quality workman ship and a friendly service from start to completion. The team is highly skilled and experienced in carpentry and joinery and there is no job too demanding! We are confident that we can meet all your requirements on your next project
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AJT Construction Beckenham Ltd
Rating: 5 out of 5
Extension Builder in New Cross
AJT CONSTRUCTION WE BUILD WHAT WE LOVE, AND WE LOVE WHAT WE DO With today’s uncertain economy choosing the right builder for your project has never been more important.From conception to final build and completion it is vital to work with a company that understands your needsand has expertise to deliver on time and within budget. For over 30 years, we have built an enviable reputation in Beckenham and the surrounding areas, successfullymanaging projects in the construction industry
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Latest review:
Extensions- 23 Mar 2022
Dealing with Jason was an absolute delight. He was punctal, provided some great advice and introduced me to a great conservatory manufacturer. Would definitely use him again for further building work. Highly recommend.

3.8

Top rated Extension Builders

Our Extension Builders in New Cross, are rated 3.8 out of 5 based on 20 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.