Extension Builders in The City

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (17 reviews)

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Some of our top rated extension builders in The City

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Coste + Beno
Rating: 5 out of 5
Extension Builder in The City
Coste + Beno is an experienced construction business with a strong residential background. We pride ourselves on balancing architectural ingenuity with fine craftsmanship, to offer specialist services to discerning clients in the premium residential sphere. Our bespoke approach has seen us creating bijoux bathrooms in Shoreditch to managing full-scale renovations on listed residences in Primrose Hill. We are looking forward working with you. Best, Coste + Beno
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Latest review:
Architecture- 27 Nov 2017
I contacted Marius because he had good reviews and wanted someone reliable and capable so design a single story extension with large external and internal bifold doors. I wasn’t disappointed - Marius has been excellent throughout the whole design process and produced drawings to a high standard which met our requirements. Marius was an excellent communicator and always available to give advice when required. Further more, he went out of his way to contact local authorities regarding any questions I had at no extra cost to clarify any uncertainties. I would highly recommend his architectural services - he was good value and very professional.
LBS LANGTON LTD
Rating: 5 out of 5
Extension Builder in The City
WE ARE A BUILDING, GROUNDWORKS AND DEMOLITION SPECIALIST COMPANY WITH 28 YEARS IN THE INDUSTRY. WE PRIDE OURSELVES ON DOING THE JOB PROPERLY AND ON TIME WORKING WITH CLIENTS TO GET THE VERY BEST RESULTS
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Latest review:
Groundwork & Foundations- 25 Jul 2025
Ralph and his team did a fantastic job making a concrete base for a summer house He was reliable, charming and did a few extra jobs while he was here ! Ralph,Charlie, Roy and Captain were a pleasure to meet and we recommend this company wholeheartedly
SCDEVELOPMENTS&sonsLTD
No reviews yet
Extension Builder in The City
Free quotation - North London, herts and Essex
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NextGen Constructions Group Limited
No reviews yet
Extension Builder in The City
This is NextGen Constructions Group Limited, we provide effective and efficient work to our clients, we have 13 years of building work experience, we also provide many services like extensions, new build, garage, loft conversion, etc.
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Tidy trowels
No reviews yet
Extension Builder in The City
Hi i have 45 years exp in brick work,garden walls,extensions, restoration work,stone work, patios,driveways i am multi skilled and have a proven track record i am hard working always on time and very aproachable many thanks.
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Yurii Patrash
No reviews yet
Extension Builder in The City
Experienced Bricklayer with a Strong Work Ethic I am a professional bricklayer with over 8 years of experience in the construction industry. I specialize in laying bricks, building stone structures, and restoration work. My experience covers a wide range of services, from constructing foundations to building walls, fences, and decorative elements. I ensure every project is executed with great attention to detail and the highest quality standards. Key skills include: • Accurate brick and stone laying; • Building strong foundations, walls, and partitions; • Working with a variety of materials: natural stone, clinker, concrete; • Reading and working from technical drawings and plans; • Handling both large-scale projects and small repairs. I am committed to delivering the best results for my clients: the precision, quality, and durability of my work is my pride. I guarantee top-quality work and timely project completion. Ready to assist with any bricklaying needs in London and surrounding areas!
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BuilderMaan Limited
No reviews yet
Extension Builder in The City
We are a new company who have experienced builders for over 10 years specialising in residential building work. We have successfully completed projects which include whole house renovation to smaller work such as single storey extensions and garages. We have a highly dedicated team who pride themselves in creating the customers needs within the most competitive rates in the market.
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Skylon Construction Limited
No reviews yet
Extension Builder in The City
Skylon Construction Ltd. successfully delivers projects in mixture of construction, renovation and refurbishment services to individual clients, as well as to other companies. We pride ourselves on an ability to deliver on-schedule without ever compromising our outstanding level of quality. We aim for completing on schedule and believe in zero snaggings and zero incidents policy.
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Rt building solutions
No reviews yet
Extension Builder in The City
Sole trader with 20 years experience in the building industry specialising in carpentry and extensions
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Grand contractor Ltd
No reviews yet
Extension Builder in The City
Grand Contractor Ltd, a trusted provider of skilled and general labour and supplies specifically for the facade and cladding and other building industry . We specialize in supplying reliable, experienced personnel for projects involving curtain walling, rainscreens, metal panels, composite systems, and more. Whether you need a full team or additional labour and supplied material to support your existing crew, we can provide: Curtain Walling/Window/Door installers Cladding Specialist Builders cleaning French Polishing and Magic Man Specialist. General site operatives • Drill lining •Builders Cleaning and site maintenance •Tile and Bathroom • carpentry and joinery Our team understands the demands of facade and other building work—precision, safety, and speed—and we’re committed to helping you meet deadlines without compromising quality. We’d welcome the opportunity to discuss in person how we can support your current or upcoming facade projects. Please feel free to reach out at your convenience
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Kingsmarque construction and maintenance
Rating: 5 out of 5
Extension Builder in The City
All building work taken on, slating and tiling, house renovations and extensions. We have a team of tilers, renderers, plumbers, painters and myself and business partner who run each job and manage the multiple trades required.
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Latest review:
Extensions- 25 Aug 2020
Really professional and quick to provide quotes. Unfortunately, due to COVID and our circumstances changing, we have had to cancel the job. We would definitely go back to them in the future though.
Surrey construction 1touch living
No reviews yet
Extension Builder in The City
Hi we have been trading for 40 years we are general builders undertaking new builds- extensions -loft conversions- refurbishments
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Martini builders
No reviews yet
Extension Builder in The City
My is Aaron Martini been in building game for thirty years learned great deal ..I love bricklaying ,extension ,garden walls ,patio, pointing ...always give 100 percent to every thing I do
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AGbuilds
No reviews yet
Extension Builder in The City
We provide high-quality, durable, and stylish solutions for homes and businesses. Our expertise covers modern windows and doors, security installations, and outdoor structures, ensuring safety, efficiency, and elegance in every project. We prioritise expert craftsmanship, top-grade materials, and customer satisfaction, helping you enhance your property with reliable and aesthetically pleasing solutions
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Garnet Construction Ltd
Rating: 4 out of 5
Extension Builder in The City
Garnet Construction has over 10 years' experience in the industry and specialise in loft conversions, all types of extensions and complete renovations. Priority is given to the design and construction of all our projects with a unique obsession to strive for perfection.
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Latest review:
Extensions- 18 Sep 2019
To start off with the job went reasonably well - we were happy with the workers and the progress. but when we neared completion the work slowed up we waited 3 months for a response from Jordan. we had an issue where his plasterer hid the plumbing access in the wall. - This cost us £500 to sort and re-decorate so we came to an agreement that this was fine and at the time i presumed that Jordan was going to sort out the building control. so we then chased and chased but obviously since he had his money he wasn't interested he answered the phone and hung up. so we called building control and there are 2 small bits to fix which are all due to his work not being up to scratch. obviously i will be paying out for this - so please be careful when using him and dont pay him until you have all of the documents as he will not resolve any issues after being paid. i have had 2 previous building projects and this was by far the worst experience going. avoid dont use him thanks
J West Contracts
New on MyBuilder
Extension Builder in The City
I am a general builder specialising in bespoke carpentry. I see jobs through start to finish e.g demolition all the way to kitchen fittings.
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4.1

Top rated Extension Builders

Our Extension Builders in The City, are rated 4.1 out of 5 based on 17 reviews from customers like you.

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Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

What types of services are offered by local extension builders in The City?

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 The City 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 The City who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in The City?

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

Find extension builders in The City with MyBuilder

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

Step 2: Compare different extension builders in The City

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

Step 3: Hire The City extension builders with confidence

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

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

What to ask a The City extension builder before hiring?

Before hiring an extension builder in The City or extension building company in The City, 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 The City?

An extension builder in The City 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 The City 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 The City?

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 The City 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 The City 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 The City

Can an extension builder in The City help with planning permission?

Yes, many extension builders in The City 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 The City handle everything from design to construction?

Many The City 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 The City help with materials and finishes?

Yes, most extension builders in The City 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.