Extension builders in New Wanstead

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (18 reviews)

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Some of our top rated extension builders in New Wanstead

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JOEN CONSTRUCTION LTD
Rating: 5 out of 5
Extension Builder in New Wanstead
Welcome to JOEN CONSTRUCTION LTD. We provide a full range of building services in London. We undertake all types of construction from new builds and home extension to painting,electrical installation,renovation,ect. We pride ourselves on being a construction company with time served domestic builders who offer a bespoke service with results tailored to your specific needs. With a solid reputation for quality. What’s more,we are well-known for delivering projects on time and to budget.
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Latest review:
Kitchen Fitting- 3 Dec 2024
Sinan assessed the job and returned to complete the work in a short time. Very pleased with the work. Very clean and tidy and on time. Reliable, courteous and a very nice man. Would highly recommend him
A J Keating
Rating: 5 out of 5
Extension Builder in New Wanstead
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.
KASE Construct limited
Rating: 5 out of 5
Extension Builder in New Wanstead
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
JS Brickwork
Rating: 5 out of 5
Extension Builder in New Wanstead
We offer a professional and conscientious service where quality and customer satisfaction comes first. We undertake all masonry projects that include brickwork, blockwork, extensions, garden/boundary walls and house building. We also have expertise in carrying out restoration and refurbishment of listed and English Heritage buildings including specialist pointing such as weather struck and lime mortar applications, use of reclaimed bricks, arch work and stonework.
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Latest review:
Extensions- 2 Nov 2018
Building a 2 storey rear extension and hired Jamal to do the Block work. Initial ground storey heavy Hollow block walls for the 3 x 3m extension completed in only 3.5 days by Jamal himself with no extra help. Hardworking young guy. I was nearly bedbound with sciatica and in great pain and he immediately offered to source and buy on my behalf extra blocks required to relieve further stress on me. Very helpful, reasonable and understanding. Explained anything I asked him diligently. Knows his job and I will be calling him back when I have the money to complete the block work for the 2nd storey.
Eleven Construction Ltd
Rating: 5 out of 5
Extension Builder in New Wanstead
ECON provide best quality building services to customer who are looking for high standard works for their residential properties up to their desired satisfaction. We are a professional building construction and maintenance company with highly skilled staff & workers of all trades to carry out the task given to our company.
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Latest review:
Builders and team work like professionals and completed everything in time. Highly recommended team of professionals.
GRAND DESIGNS INTERNATIONAL LTD
Rating: 5 out of 5
Extension Builder in New Wanstead
Grand Designs International (GD) | Architectural, Engineering & Construction Services At Grand Designs International (GD), we are dedicated to delivering high-quality architectural, engineering, and construction services tailored to meet our clients’ unique needs. Backed by over 20 years of expertise, our team specializes in transforming visions into reality—whether you're planning a new build, home extension, loft conversion, or full-scale renovation. With a strong foundation in innovation, sustainability, and precision, we provide end-to-end project solutions, from initial design and planning permissions to structural calculations and final construction. Our commitment to quality, efficiency, and client satisfaction ensures that every project is completed to the highest standards. Why Choose Grand Designs International? ✅ Full-Service Expertise – From architectural planning to construction, we handle every stage seamlessly. ✅ Planning & Building Regulations Specialists – We navigate approvals efficiently to prevent delays. ✅ Experienced & Certified Team – Qualified engineers, architects, and builders with a proven track record. ✅ Tailored Solutions – Every project is custom-designed to meet your style, space, and budget needs. ✅ Transparent Pricing & Project Management – No hidden costs, just reliable service with regular updates. ✅ Fast Turnaround & On-Time Delivery – We work efficiently without compromising quality. Our Services 🏡 Architectural & Planning Services Planning Applications & Building Regulations Approval Concept & Detailed Design Interior Design & Space Planning 3D Visualizations & Rendering Enforcement & Retrospective Planning 🏗️ Structural & Engineering Design Structural Calculations & Drawings Civil & Structural Engineering Services Quantity Estimation & Cost Planning 🔨 Construction & Building Services Home Extensions & Rear Extensions Dormer Loft Conversions & Flat Conversions New Build Homes & Full Renovations Project Management & Site Supervision Construction Planning, Procurement & Logistics Quality Control & Safety Management At Grand Designs International, we believe in delivering excellence, one project at a time. Our reputation for integrity, professionalism, and top-tier craftsmanship makes us the preferred choice for homeowners and businesses across London and beyond. 📞 Get in Touch Today! Let’s discuss your project and bring your dream home to life.
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Latest review:
★★★★★ Highly Recommended! I had an existing 3-bedroom rundown property and contacted multiple builders before meeting Director Mr. Q Nawaz. From our first meeting, I was impressed by his ideas and the fact that Grand Designs could provide all services in-house. Initially, I proceeded only with the planning application to see if what he promised was possible—and YES, he delivered! My application was approved as he assured me. Seeing this success, I entrusted them with the entire construction project, and Grand Designs completed it within just 6 months, despite the challenges of COVID-19. Not only did they build my project, but they also added significant value to the development. I’m proud to have worked with them, and their exceptional work on my St Albans development is now featured in their portfolio. Within one year, the value of my property increased by £500,000—a testament to their expertise! Extremely professional, highly skilled, and very reasonably priced. You don’t need to go anywhere else—Grand Designs is the complete package!
Deep Builders
Rating: 4.7 out of 5
Extension Builder in New Wanstead
Experienced and Reliable Tradesperson Skilled, punctual, and committed to quality workmanship. I take pride in delivering excellent results on time and within budget. Whether it’s repairs, renovations, or new projects, I’m here to help—no job too big or small. I deal in new builds, carpentry, plumbing, electrical, bathroom fittings, and gardens. Get in touch for a free quote!
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Latest review:
Kitchen Fitting- 3 Sep 2026
A very big thank you for a job brilliantly done. I ‘m so pleased with the finished result and how the journey has gone, Deep & his team were polite, friendly, informative and efficient. Each of the trades have carried their work to high standards, whether its kitchen installation or tiling. I will be recommending you without hesitation. His work speaks more than his words. Keep up the good work 👏 🙌 👍.
Extension Kings Ltd
Rating: 5 out of 5
Extension Builder in New Wanstead
I've been working in building trade for over 20 years , I can undertake any job small and big from foundations to the roof and anything between. I can provide any references and I have insurance of £5 million. Me and my team take pride at what we do and we do it first time right .our work is second to none , and proof of that is that you don’t pay anything upfront till you are fully satisfied with the quality.
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Latest review:
Extensions- 8 Oct 2018
Alban completed a lateral kitchen extension for me in west London. Very happy with the results and to add my name to others that have given 100% positive feedback. What I particularly liked - (1) Alban took great care to protect the rest of my house while working (protection, covers etc), (2) his team were friendly and polite to neighbours. Building works are always noisy and disruptive, they kept others 'on side' and (3) they worked to the timing and schedule agreed (4) they cleaned up, every single day (5) they worked to a high standard and corrected for any issues, despite my inevitable last minute changes. Wish him and team best success... happy to recommend. Rob
Kcbuildingservucea
Rating: 4.7 out of 5
Extension Builder in New Wanstead
I am an experienced handyman that takes on all scales of projects in London. I have an experienced team to ensure all works are carried out to an excellent standard. We offer handymen services: Building Gardening Patio cleaning Waste clearance
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Latest review:
Plumbing- 21 Dec 2025
Great work!! would definitely use again
Johny the Builder
Rating: 5 out of 5
Extension Builder in New Wanstead
PROFESSIONAL BUILDERS. Johny The Builder Ltd are Building Contractors based in Romford, Essex. We undertake commercial and domestic Refurbishments, Roofing, Loft conversions, Brickwork, Extensions, Basements and new building projects. We make your House a Home
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Latest review:
Extensions- 28 Sep 2018
Johnny was very nice to deal with. When there were problems they were quick to find ways to rectify them. They started at short notice& finished on time which I was very impressive. We got a no. of quotes,Johnny was middle of the range but with a better level of service than others. Johnny was very open about when things might cost more &gave us the option if we wanted to proceed. A few things to note: -this was our 1st experience of any building work &we should have remembered they are builders, not designers -we both work long hours &so most days didn't see the team to get an update or brief them. This meant a few things were missed or miscommunicated - while most of the team were lovely the electrician used was horrible to deal with. He got very cross about requested changes, didn't deliver everything requested &just did silly things like putting in a light switch with 2buttons where there was only one Light or hanging lights incredibly low when we had given measurements of where we wanted them - we got Johnny's team to build some extra storage for us which on the whole was fine but some things weren't centred or for example the wine rack they built was wonky Overall, it was a good experience and we would recommend them but would suggest be home to oversee the work more than once a week (must be true of any building work!) and get your own electrician. Very happy to talk to people and give references-the house looks great now.
Castle-house Builders
Rating: 5 out of 5
Extension Builder in New Wanstead
Castle-Housebuilders Over 20 Years of Expert Craftsmanship With more than 20 years of experience as trusted house builders, we deliver high-quality building solutions across London and the surrounding areas. We specialise in: ✅ Loft Conversions — transforming unused roof space into beautiful, functional rooms ✅ Home Extensions — expanding your living space with seamless, bespoke builds ✅ New Kitchen Assembly & Fitting — expert installation and custom kitchen work ✅ Plastering — professional interior & exterior plastering for a smooth, quality finish ✅ Repointing — restoring and strengthening brickwork to keep your home strong ✅ Painting & Decorating — interior and exterior painting to refresh and protect your property We pride ourselves on reliability, attention to detail, and honest pricing. From small refurbishments to larger building projects, we treat every home with care, ensuring high standards from start to finish. Quality builds. Lasting results. 20 years you can trust. 📞 Get in touch for your free, no-obligation quote today.
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Latest review:
Electrical- 2 Aug 2023
Malik and team were on time, prompt, professional and worked to a high standard. Multi skilled team- bathroom plumbing, electrical, flooring and painting. Installed clothing rail and sorted out cracks in bathroom ceiling. Highly recommend. Thank you.
Chris Building Services
Rating: 4.8 out of 5
Extension Builder in New Wanstead
Hello! We are a small family business of builders. Friendly & reliable, time-served tradesmen. We are always clean, tidy, respectful and considerate in your property. Qualified Tradesmen and sensible prices, we always aim for 100% satisfaction first time - every time. No job is ever too small, [or even too large!] We are a one-stop shop for anything building related. Take a look at our profile to see what we do..
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Latest review:
Restoration & Refurbishment- 2 Apr 2025
Chris did a wonderful job in the time given, super professional finish and quickly completed! Thanks Chris!
Atanas Vitanov
Rating: 5 out of 5
Extension Builder in New Wanstead
My name is Nass and I have been working as carpenter and joiner for more than 12 years. Providing high qualities standards for clients is my first priority. Dedication to my job and always-aiming 100 % satisfaction are principles in my work.
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Latest review:
Handyman- 16 Apr 2026
Atanas arrived on time, completed jobs quickly and professionally at a fair price. Also personable which is great and charged a fair price. I have already asked him to quote for bigger jobs. Highly recommended.
Dc
Rating: 5 out of 5
Extension Builder in New Wanstead
General builder, extensions, kitchen fitting, bathrooms, summer houses, laminate flooring, shelving, bespoke wardrobes/units, fencing.
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Latest review:
Decking- 22 May 2021
Daniel made a decent job of replacing the stairs to our decking, which had become rotten over time and weather. He came and gave us a price promptly and arranged a convenient date very quickly. We were happy with his work and would recommend him.
Nc property services
Rating: 5 out of 5
Extension Builder in New Wanstead
Fully qualified electrician and multi-trade specialist with over 20 years of hands-on experience delivering single-storey extension builds, complete kitchen and bathroom refurbishments, and commercial refits. Based in Loughton, I serve clients across London and the Home Counties. Experience Over 13 years of trade experience spanning domestic extension builds, structural wall modifications, full kitchen and bathroom transformations, and co-founding a 39-strong engineering firm. Services & Expertise Extensions & Structural Builds: Single-storey extension framing, structural wall openings, carpentry, and flat roof repairs/installations. Kitchen & Bathroom Refurbishments: End-to-end fit-outs, floor laying, plumbing, electrical integrations, and space layout modifications. Electrical Compliance: CSCS card holder with Inspection & Testing certification for rewires, fault finding, testing, and consumer units. Maintenance & Repair: Planned preventive maintenance, disrepair remediations, and general trade upgrades. Areas Covered Loughton (IG10), Greater London, Essex, and surrounding Home Counties. Why Choose Me I offer direct, approachable communication and strict attention to detail on every project. From structural extensi
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Latest review:
Nick is excellent. Very resourceful and has a great attention to detail. He's given us the confidence to do more work to our house. Would highly recommend.
grantconstruction0
Rating: 5 out of 5
Extension Builder in New Wanstead
The construction company carries out and performs a full range of complex interior finishing works, general contracting for the repair and reconstruction of buildings and premises in commercial areas. The main direction in which the company operates is commercial real estate: shopping, entertainment and office centers, factories, hotels, logistics complexes and scattered throughout London will undertake any repair and restoration work. We use only high-quality materials and tools to ensure the highest quality of work, in addition, we always adhere to the agreed deadlines and budget, which allows our clients to be confident that the repair work will be completed on time and without unnecessary costs
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Latest review:
Tiling- 4 Oct 2026
After some confusion about when arriving. Went well. Ensure clear understanding, prior to work starting, on who is providing materials while agreeing costs. Would recommend.

4.1

Top rated Extension Builders

Our Extension Builders in New Wanstead, are rated 4.1 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 Wanstead?

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

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

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

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

Find extension builders in New Wanstead with MyBuilder

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

Step 2: Compare different extension builders in New Wanstead

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

Step 3: Hire New Wanstead extension builders with confidence

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

What to ask a New Wanstead extension builder before hiring?

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

An extension builder in New Wanstead 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 Wanstead 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 Wanstead?

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 Wanstead 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 Wanstead 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 Wanstead

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

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

Many New Wanstead 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 Wanstead help with materials and finishes?

Yes, most extension builders in New Wanstead 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.