Extension Builders in Bethnal Green

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 Bethnal Green

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Sam's Building Maintenance and Constructions Ltd
Rating: 5 out of 5
Extension Builder in Bethnal Green
Sam's Building Maintenance and Construction Ltd has more than 25 years experience in First and Second Fix carpentry, Kitchen installation, extension, loft conversion and general refurbishment work. We deliver quality services to meet customers' specifications and within stipulated deadlines .
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Latest review:
Sam did 5 and half meter kitchen, with large shower and laundry rooms extension for me. He is of very good character, worked professionally, reliable and his work was good.
I.V.M BUILDERS
Rating: 5 out of 5
Extension Builder in Bethnal Green
I.V.M Builders Limited. Established in Stratford, we have worked in the building trade for many years, I.V.M Builders Ltd are a reliable, fully accredited and professional company operating in East London and North London. We are prideful in all the work which we undertake, taking great care to make sure that our client’s needs are met meticulously and professionally. All of our builders are qualified to undertake the task at hand, and we operate to all governed standards.
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Latest review:
Kitchen Fitting- 18 Nov 2023
The kitchen refurbishment exceeded my expectations! The attention to detail, modern design, Thank you for your expertise and professionalism throughout the process. I couldn't be happier with the results!
UK Safety inspections
Rating: 4.6 out of 5
Extension Builder in Bethnal Green
Full qualified electrician. Gas safety engineer. 18 years experience in London and England. Insurance £10 million. We do EICR, EIC , FIRE, EMERGENCY LIGHTS, PAT, LANDLORD GAS SAFE, HEAT PUMP CERTIFICATIONS.
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Latest review:
Extensions- 7 Mar 2017
Very professional and personable service. Work done to a good standard
Nami Construction Ltd
Rating: 5 out of 5
Extension Builder in Bethnal Green
We offer comprehensive property refurbishment services that include decorating, plumbing, electrical work, plastering, extensions, and loft conversions. Our team comprises professionals, and we ensure that all instructions are regularly reviewed with our clients throughout the duration of the project. We provide transparent and detailed estimates and updates on a regular basis to help you control your budget. Our services cater to all types of homes, such as those owned by landlords, Thank you
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Latest review:
Plumbing- 19 May 2026
Emir did a good job. The company did a bathroom refurbishment after water leak, repaired the damaged ceiling downstairs and painted the room. Emir’s attention to detail is very good and he went the extra mile to do the job properly. I will recommend his services.
MAG
Rating: 4.8 out of 5
Extension Builder in Bethnal Green
MAGNOVA CONSTRUCTION LTD is a London-based construction and property improvement company providing high-quality building, renovation, and maintenance services for residential and commercial clients. Our expertise includes painting and decorating, tiling, carpentry, flooring, plastering, kitchen and bathroom renovations, property refurbishment, and general building works. We are committed to delivering reliable workmanship, attention to detail, and excellent customer service, ensuring every project is completed to a high standard, on time, and within budget. With a focus on quality, professionalism, and client satisfaction, MAGNOVA CONSTRUCTION LTD helps transform properties into functional and attractive spaces.
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Latest review:
Painting & Decorating- 2 Aug 2026
Maj was kind and effective in his communication. His price was attractive but unfortunately the quality of work was nothing less than ok - finishing standard was quite poor, and the new silicone gathered mould after only a month or two (the previous held for over five years). Would use for small works but consider if you have a high standard and an eye for a clean finish.
Qualitas Build Ltd
Rating: 5 out of 5
Extension Builder in Bethnal Green
Quality service assured to all customers. Insured. All work guaranted quality work to domestic and commercial customers. Call us today for a free quotation. Work history Over 19 years of experience working all over London and sorrounding areas delivering excellent finish. We take on general building work, extensions, loft conversion, roofing, renovation, new build, tiling, Plastering.
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Latest review:
Handyman- 23 Nov 2024
Excellent, recommend this guy. He will do the jobs and do it well!!
Patrick JR
Rating: 5 out of 5
Extension Builder in Bethnal Green
Experienced Tradesman who enjoys providing a friendly and reliable service to customers. No job too small from Demolition and groundwork’s to first fix of structures to second fix finishing jobs such as hanging TVs and mirrors. Please get in touch for a no obligation quote and estimated timescale.
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Latest review:
Handyman- 4 Aug 2021
Great during the pandemic, able to change appointment due to isolation. Job completed in a timely manner and work space left clean. Job completed a month ago and still perfect. Thanks
Ernest Sergy Building Services Ltd
Rating: 5 out of 5
Extension Builder in Bethnal Green
Ernest Sergy Building Services LTD is a general building company specialising in demolition, structural and ground work, interior and exterior refurbishments, renovations, loft conversions, extensions and other aspects of general building work.
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Latest review:
Extensions- 26 Aug 2022
Very happy with the work from Ernest. Nothing was too much trouble, and any issues along the way he just sorted. The team worked extremely hard and were all polite. I’d really recommend working with Ernest and his team and will be using him again for sure.
N EXTENSION KINGS LTD
Rating: 5 out of 5
Extension Builder in Bethnal Green
I've been working in building trade for over 15 years , we can undertake any job small and big from foundations to the roof and anything between. We can provide any references,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:
Great job by Nick and the team, good attention to detail and very helpful, they went the extra mile to get a nice finish and make sure we were happy. We used after a neighbour also had a good experience.
NA
Rating: 5 out of 5
Extension Builder in Bethnal Green
Skilled, tidy bricklayer. Highly competent in building, pointing and restoration. Garden walls, extensions, new builds, etc
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Latest review:
Jack built a brick buttress to structurally support my garden wall. Originally I was going to rebuild the entire wall, but Jack’s advice to build a buttress saved me a lot of money! The job was done quickly, affordably and to a high standard. Would highly recommend.
Torc Groundworks Ltd
Rating: 5 out of 5
Extension Builder in Bethnal Green
Torc Groundworks & build take a professional approach to all groundworks, including piling, foundations, underpinning, drainage, RC Works, Brickworks, Paving, driveways and Landscaping.
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Latest review:
Groundwork & Foundations- 9 Nov 2023
Very professional, finished the job to a great standard.
Rizart terzeta
Rating: 5 out of 5
Extension Builder in Bethnal Green
Experienced London-based carpenter specialising in commercial and residential work. Certified fire door installer, delivering high-quality, reliable, and compliant workmanship. Tape and joint Painting Glazing Partition walls Wall panels Standard doors Fire doors
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Latest review:
Carpentry- 10 Nov 2025
We know how difficult is to find someone reliable who knows what is doing. Well ,Rizart is the one who you can trust, relay on and have the job done in no time. 8 fire doors fitted in 2 days with certificates Thank you Rizart
GRAND DESIGNS INTERNATIONAL LTD
Rating: 5 out of 5
Extension Builder in Bethnal Green
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!
Constructum Code Ltd
Rating: 4.2 out of 5
Extension Builder in Bethnal Green
****** Constructum Code building company ****** We offer various construction services, from fence building to renovation work, extensions, home building and loft conversions. We also provide a wide range of interior building and renovation services. We have highly qualified project managers with over 22 years of experience in construction & building industry. WE OFFER: *The Complete Service* *10 Year Guarantee* *Free Estimates* *Competitive Prices* *Full Building Control Approved Installer* *Excellent Designs and Unbeatable Workmanship* *Fully insured building service* Constructum Code, at its core, is a construction company through and through. We are general contractors who can provide a wide range of building services, both small and large. Services Provided: 3D Rendering, Basement Conversion, Building Design, Complete Bathroom Renovation, Complete Kitchen Renovation, Conservatory Design & Installation, Custom Build Homes, Home Renovation, House Extensions, House Plans, House Restoration, Interior Architecture, Interior Design, Loft Conversion, Loft Restoration, New Home Build, Project Management, Balcony Design & Construction, Concrete Construction, Concrete Repair
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Latest review:
I ordered repairs from the Constructum Code company, I wanted to create a play area. The guys tried to select all the materials and work technologies to suit my budget. The tiles on the walls and floor were laid well. The work was completed efficiently and on time. I recommend this company...
Mark's Amazing Building Company
Rating: 5 out of 5
Extension Builder in Bethnal Green
Mark and his team of 8 have over 100 years of trade experience between them. Each member of the team has honed their craft in a specific trade from bricklaying to plastering, extensions to renovations. Working so close to each other and as a team, they create extensions and renovations to a high standard and always work on one job at a time to ensure a finish of high standards.
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Latest review:
Mark and his team did an amazing job on our extension. We will shout it out from the rooftops. They walked us through all aspects of the build and where so friendly and clean. If we ever extend anything else we will look them up.
JED BUILDERS LTD
Rating: 5 out of 5
Extension Builder in Bethnal Green
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

3.8

Top rated Extension Builders

Our Extension Builders in Bethnal Green, 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 Bethnal Green?

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 Bethnal Green 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 Bethnal Green who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Bethnal Green?

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

Find extension builders in Bethnal Green with MyBuilder

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

Step 2: Compare different extension builders in Bethnal Green

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

Step 3: Hire Bethnal Green extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Bethnal Green, 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.

Bethnal Green extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Bethnal Green extension builder before hiring?

Before hiring an extension builder in Bethnal Green or extension building company in Bethnal Green, 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 Bethnal Green?

An extension builder in Bethnal Green 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 Bethnal Green 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 Bethnal Green?

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 Bethnal Green 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 Bethnal Green 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 Bethnal Green

Can an extension builder in Bethnal Green help with planning permission?

Yes, many extension builders in Bethnal Green 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 Bethnal Green handle everything from design to construction?

Many Bethnal Green 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 Bethnal Green help with materials and finishes?

Yes, most extension builders in Bethnal Green 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.