Extension Builders in New Cross

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.7 (19 reviews)

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Some of our top rated extension builders in New Cross

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JR OP LIMITED
No reviews yet
Extension Builder in New Cross
We specialise in high-quality home improvements, with a strong focus on landscaping, extensions, and loft conversions, offering a complete design and build service from start to finish. Whether you’re looking to transform your outdoor space, expand your living area, or unlock the potential in your loft, we provide tailored solutions designed around your needs. From initial concepts and planning through to construction and final finishes, we pride ourselves on clear communication, reliable project management, and attention to detail. Our goal is to create practical, beautifully finished spaces that add real value to your home.
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BessyConstruction
Rating: 5 out of 5
Extension Builder in New Cross
Bessy construction has provided building and specialist outdoor services for over 10 years in and around West London area. We are a well established business and our reputation has been built upon our well completed projects, high quality of work and client satisfaction, reliability, flexibility, honesty & integrity. Our aim is too make sure that every customer is 100% happy with the job we carried out.
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Latest review:
I was very delighted to find Bessy Construction, to be part of my house renovation and also kitchen and loft extension. I was very lucky To have a grate team such as Bessy construction that came highly recommended. Bessy construction made my family and I to love our home. Highly recommend it has a great team that worked with passion on everything they touched in my house. Once again, Bessy construction thanks a lot for everything you done for me and my family. We always highly recommend you and everybody will be very satisfied and lucky to have you. London needs more builders like you all the best my friend Thanks
wilson ellis building services ltd
No reviews yet
Extension Builder in New Cross
We are a family run building company carrying out predominantly domestic work, with the ability to carry out larger construction and commercial projects. We still continue to offer the friendly, competitive service expected from reliable quality builders. We cover everything from home improvements to building your new home from planning to completion.
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Abdullah azouz.
Rating: 5 out of 5
Extension Builder in New Cross
I’m involved in residential property development. My role includes supporting construction projects, coordinating with teams, and helping ensure work is completed efficiently, on time, and within budget.”
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Latest review:
Bathroom Fitting- 23 Apr 2026
Rapid response and professional work.
Misha Sup
No reviews yet
Extension Builder in New Cross
Motivated trainee bricklayer with a strong work ethic and eagerness to learn.
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Edmondbuilders ltd
No reviews yet
Extension Builder in New Cross
We are a well-established building and property maintenance company based in Croydon, Surrey. We work closely with our clients to create special places for living, working, and playing. As specialists in residential construction services for over 10 years our record of large and small building project
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T.M Construction.ltd
Rating: 5 out of 5
Extension Builder in New Cross
TM Construction.ltd, established in 2007, is a trusted building company specialising in extensions, loft conversion,refurbishments, and general construction projects. With over 15 years of experience, the company is known for its high-quality workmanship, reliability, and customer-focused approach. From groundwork and structural works to finishing touches, TM Construction delivers complete building solutions on time and within budget.
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Latest review:
Roofing (Pitched)- 6 Mar 2026
Thomas was a pleasure to work with. Polite and accommodating. Would definitely hire him again.
KASE Construct limited
Rating: 5 out of 5
Extension Builder in New Cross
KASE Construct is a family owned business, with a 30 year legacy in construction. Our team are passionate and highly experienced. Professionalism and consistency in customer service is very important to us, going above and beyond in everything we do. Work we undertake: Roofing, loft conversions Extensions Refurbishments / re modelling New builds and Retrofitting Painting and Decorating Polished and Traditional Plastering Carpentry Kitchens Bathrooms
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Latest review:
Plastering- 10 Oct 2022
Very positive - Lee did a superb job, was on time and a pleasure to deal with. I'd highly recommend him
Payrosa Joinery Ltd
No reviews yet
Extension Builder in New Cross
We are a carpentry, joinery company, specialized in premium bespoke joinery. We use age-old expertise, combined with modern innovation to create up-to-date tailor-made joinery solutions. We overtake both residential and commercial works and look forward to working with you on your next project!
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growchance com ltd
No reviews yet
Extension Builder in New Cross
Home Renovation & Structural Alterations in London. Growchance carries out home renovations, extensions and structural alterations for London homeowners who want the building work, specialist trades and final finishes delivered under one clear scope. Depending on the property and agreed brief, the work may include structural alterations, house extensions, loft conversions, kitchens, bathrooms, electrical and plumbing work, plastering, flooring, carpentry and decoration.
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The Modular Building Company (london) Ltd
No reviews yet
Extension Builder in New Cross
We build modular buildings
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Avalon London Projects
No reviews yet
Extension Builder in New Cross
Our Experience: At Avalon, our team brings over three decades of expertise in construction and interior design. We’ve successfully delivered a wide array of projects, from comprehensive home renovations to tailored interior design solutions. Our portfolio reflects diverse styles and spaces, underscoring our commitment to quality and meticulous attention to detail. Where We Work: Based in London, we serve clients throughout the city and surrounding regions. Our team is adaptable and prepared to travel to bring your vision to fruition, ensuring convenience and accessibility for all our clients. Our Special Skills: • Comprehensive Trade Expertise: Our seasoned professionals are adept in various trades, including painting, decorating, joinery, plumbing, and electrical work, ensuring seamless project execution• Interior Design Proficiency: Our skilled interior designers collaborate closely with you to create spaces that are both visually appealing and practical. • Efficient Project Management: We recognize the significance of adhering to timelines and strive to complete projects promptly without compromising on quality
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Elite Renovations
Rating: 5 out of 5
Extension Builder in New Cross
We are a well experienced team of tradesmen from bricklayers to plasterers and roofers. We undertake works in all areas of the building industry and pride ourselves on our professionalism, work ethic and customer service. All of our contracts are bespoke to the customers needs and requirements with no upfront payments, we will build 50% of your project before any payment is made.
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Latest review:
I had a new boundary wall built. I am very pleased with the professionalism and politeness of the tradesman. The wall looks great and I am very happy. Thank you
B M Bricklaying
No reviews yet
Extension Builder in New Cross
Hi, I i’m a professional bricklayer with ten years of hand on experience in residential and commercial construction. I specialise in building strong precious structures from walls and chimneys to decorative masonry. I take pride and quality craftsmanship attention to details and getting the job done right the first time whether it’s new construction restoration or repair repairs I am ready to bring skill and reliability to every project.
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SOUTH CONSTRUCTIONS LTD
No reviews yet
Extension Builder in New Cross
A little about us With many happy and returning customers over the last 12 years, you can be sure of being well looked after. Our aim is to provide a stress free project, delivered in a manner that I am confident will exceed your expectations. We are proud to be an established business who are known locally for our fantastic service. Our customers are accustomed the outstanding quality of projects we complete
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ArhiTERRA design and build
Rating: 5 out of 5
Extension Builder in New Cross
We are a family business with a dedicated team specializes in works of any size ranging from the design through to building process. Our experience is vast and we stand for fast and high quality services beeing in construction industry for over 10 years . The following services are available: -design and build of extensions and lofts, -refurbisments, -swimming pools and outdoor spaces -landscape design More details can be found on our website.
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Latest review:
Architecture- 5 May 2018
Contracted to provide options for a new garage office and storage solution. They turned up promptly and were very polite and professional. Through many discussions they ultimately offered up a very good bespoke solution for our situation and once planning is approved we will have no issue with looking to them to complete the actual build. We have had a lot of issues in the past finding reliable trades but with ArhiTERRA design and build we felt confident in their ability to both visualise and implement the build as well as follow through on their promises. I would say that for anyone considering discussing a project with them that it is worth your time to at least have a meeting with them and judge for yourself.

3.7

Top rated Extension Builders

Our Extension Builders in New Cross, are rated 3.7 out of 5 based on 19 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.