Extension Builders in Grays Inn

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 Grays Inn

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LLOCKBUILDING
Rating: 4.9 out of 5
Extension Builder in Grays Inn
"PUTTING THE TRUST AND RELIABILITY BACK INTO BUILDING" At Lock Building London, we specialise in helping you grow your vision by creating the dream home you've always imagined. We understand that your home is a reflection of your aspirations and lifestyle. Our team of skilled craftsmen will turn your ideas into reality, expanding your vision one brick at a time. From innovative designs to quality craftsmanship, we ensure that your home improvement project aligns perfectly with your vision and lifestyle. With our expertise, your dream home will not only meet but exceed your expectations, allowing your vision to flourish and your dreams to come to life
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Latest review:
Conversions - General- 15 Apr 2026
Luke and Diti are both amazing guys for this project. Honestly speaking they aren't the cheapest quote, but they are definitely beyond expectations. Luke was the only builder who gave a full transparent quote on each item and what was needed for the conversion. Really quick work and good planning because I have 2 cats and they did everything with enough people onsite to minimise the time. Speaking of work, it is good, we kept in communication and they were always happy to explain and adjust slightly according to my concern/question. Leave this comment after the work has been done for few months and everything is solid.
Shpetim troka
Rating: 5 out of 5
Extension Builder in Grays Inn
Troka Construction specializes in home refurbishments, extensions, and a wide range of home improvements. With a focus on quality craftsmanship and personalized service, we bring our clients' visions to life with dedication and attention to detail.
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Latest review:
Carpentry- 30 Apr 2026
Great communication and was able to come and do the job quickly after first message. Job was completed to a great standard (skirting boards and some scotia)
enrike
Rating: 4.9 out of 5
Extension Builder in Grays Inn
Mani Buildworks Ltd is a trusted leader in the construction industry operating since 2015 offering high-quality services for residential, commercial, and industrial projects. With a commitment to excellence, safety, and sustainability, we provide tailored solutions that meet our clients’ unique needs. Our experienced team is dedicated to delivering projects on time and within budget, while maintaining the highest standards of craftsmanship and customer satisfaction. At Mani Buildworks Ltd , we build with integrity, innovation, and a focus on long-lasting results.
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Latest review:
Plastering- 15 Oct 2018
Enrike plastered my mums hallway and gave her a good price for the work,was reliable and did a good job.
PY BUILDING & CONSTRUCTION LTD
Rating: 5 out of 5
Extension Builder in Grays Inn
Loft conversion Extensions Refurbishment General building
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Latest review:
Periklis has done a lot of things for me and I’m very happy with his work and professionalism I have done a full refurbishment in the house Also we did side and rear extension and loft conversion Periklis follow the schedule dates exactly how was agreed. He is very reliable and I will definitely use his company again. Beautiful work and everything is been done using quality materials Periklis staff are brilliant!! At the end of the project the house was spotless ready to move in. Periklis was always available to advise and guide me through the project Always giving options and advising on the best option in my interest
Garey Limited
Rating: 5 out of 5
Extension Builder in Grays Inn
General building
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Latest review:
Very reliable and high quality of work.
Dmytro Dochynets
Rating: 5 out of 5
Extension Builder in Grays Inn
Experienced bricklayer. Skilled in brickwork, garden walls, fences and repair jobs. Reliable, tidy and delivering quality work on time.
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Latest review:
Bricklaying- 30 Oct 2025
Dmytro did fantastic job rebuilding garden wall in our landscaping project. Highly recommended
A.R.Renovators
Rating: 5 out of 5
Extension Builder in Grays Inn
We are a family-run team made up of an experienced Architectural Technician and a skilled site manager and builder with over 20 years of experience delivering high-quality renovation services across London. Combining technical expertise with hands-on construction knowledge, we’re committed to providing reliable, professional service with attention to detail at every stage. We take pride in meeting deadlines, staying within budget, and exceeding client expectations through clear communication and quality workmanship.
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Latest review:
Restoration & Refurbishment- 11 Feb 2025
Lovely people who did great work at a good price and were exceptionally polite throughout! Would recommend Alex and her Dad to anyone :)
WORKSHOP & STUDIO - BAKKER LTD
Rating: 4.8 out of 5
Extension Builder in Grays Inn
Sole Trader since 2005, now a Limited Company since 2019. We Design-and-Build projects from Conversions, Extensions and New-build to Retail, Interiors, and Installations, and specialise in Carpentry, Cabinetry, Mobile Objects and Prototypes. We are architects/designers who also make/build, and carpenters/craftsmen who also design. We deal in anything bespoke, non-ordinary, at times with high or special demands. No project is too complicated or too simple. Get in touch for a free Quotation.
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Latest review:
Joinery & Cabinet Making- 1 Dec 2025
Extremely skilled and thoughtful to client
A J Keating
Rating: 5 out of 5
Extension Builder in Grays Inn
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.
B&CE CONSTRUCTION LTD
Rating: 4.9 out of 5
Extension Builder in Grays Inn
I am versatile carpenter with a background in residential, commercial, and municipal construction and remodeling. With a strong foundation in carpentry and woodworking, I have expertise in framing, trim, windows, doors, and siding. I possess in-depth knowledge of the construction process, from material selection and techniques to tools and equipment.
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Latest review:
Carpentry- 14 Apr 2026
Great
ABETA GROUP LIMITED
Rating: 5 out of 5
Extension Builder in Grays Inn
ABETA GROUP LIMITED covers a wide range of construction services offered by our team of professionals.
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Latest review:
Kitchen Fitting- 30 Nov 2020
Aurenc was very helpful and accommodating. The work was well done. All the persons were respectful and clean.
AVStructures
Rating: 5 out of 5
Extension Builder in Grays Inn
A.V. Structures is a construction company working with top-rated contractors and providing services to private clients around London. Our highly experienced team of builders has excellent skills and knowledge gained delivering projects locally and abroad. We approach each building process following Environmental, Health, and Safety guidelines. All our quotes are free, and we will always try to get a quote to you within a week of us visiting your property.
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Latest review:
Demolition- 24 Nov 2021
We employed A.V Structures for the building of an external wall around our property, the removal of a garage and the installation of railings and gates. Throughout the 4 week programme we could not have been happier with their work. Arrival was prompt, their pace of work displayed energy and purpose. They were mindful of us and our neighbours and made sure the area was left clean and tidy at the end of each days work.in addition the workmen were courteous and kept us fully informed. Alex, the owner of the company, kept in close contact with us to assure himself of our satisfaction. He came on site at intervals to check that all was going according to plan. We therefore felt completely confident that quality and outcomes were important to him. Employing A.V Structures was a decision we were pleased to have made. We would use them again without hesitation and recommend them highly to anyone considering similar work.
Toma Construction Limited
Rating: 5 out of 5
Extension Builder in Grays Inn
I have over thirty years experience undertaken all type of building works including extensions, loft conversions, refurbishments and conversions. No job to big or to small.
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Latest review:
Groundwork & Foundations- 18 Dec 2020
Had three quotes for a base for a garden shed, Toma was the cheapest by far. We arranged a day for the work to be done, bit apprehensive because I never knew anything about the company. Mr Toma and two others turned up, what lovely people they were, especially Mr Toma, the job was highly professional, everything was tidied up. Would I use them again.........100%. I would highly recommend them.
Ev max pro
Rating: 4.7 out of 5
Extension Builder in Grays Inn
Reliable. Skilled. Trustworthy. *Qualified Electrician *kitchen fitter *Bathroom fitter *All General Repair *Extension and Pergola I take pride in delivering clean, precise, and high-quality work — on time, every time. Your home’s needs are in good hands. Whether it’s repairs, maintenance, or improvements, I’ve got the skills and dedication to handle it all. You don’t need to worry — just leave it to me. While you focus on your daily life, I’ll make sure everything at home runs smoothly. Trust me to get the job done right, with care and attention to every detail.
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Latest review:
Handyman- 18 Feb 2026
Excellent very amenable
Ebla contractors Ltd
Rating: 4.2 out of 5
Extension Builder in Grays Inn
Ebla contractors, I am a Chartered Approved Safe Contractor, I have been working in the building trade for over 20 years, I can undertake any job, from Foundations all the way up to the Roof, and anything in between, I can provide any references and I have insurance of £5 million, my work is second to none, and the proof of that is you don't pay anything upfront, till you are fully satisfied with the quality of work.
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Latest review:
Painting & Decorating- 2 Aug 2025
Very disappointing experience with Ramon. Ramon came to view the property before we agreed on the scope and price of the exterior painting job. We had detailed discussions in person and over the phone and agreed on everything including price and scope. Despite that, after starting the job, he changed his mind about the agreed price and asked for more money — something he never flagged during the site visit. He painted part of the exterior and then left the job half done without any communication for two full days. There was no explanation or notice — I was left completely in the dark. It was promised that he would come back the next day as he needed some extra tools but after multiple messages being ignored and calls being ignored it was clear we were left in vulnerable position with a half painted house without any communication. The lack of professionalism, poor communication, and unreliability make it impossible for me to recommend him. I have CCTV evidence of our conversations.
YOB CONSTRUCTION LTD
Rating: 5 out of 5
Extension Builder in Grays Inn
At YOB Construction Ltd, we believe your home or business deserves the highest standard of workmanship. Based in North West London and proudly serving the surrounding areas, we specialise in a full range of building and renovation services, from kitchen and bathroom installations to bespoke carpentry, tiling, painting, decorating, and complete refurbishments and extensions. What sets us apart is our commitment to quality, reliability, and customer care. Every project, no matter the size, is managed with precision and attention to detail. We work closely with our clients to understand their vision, provide honest advice, and deliver results that not only meet expectations but exceed them. With years of experience and a team of skilled professionals, YOB Construction Ltd has built a reputation for trust, professionalism, and lasting results. We source only high-quality materials, maintain clear communication throughout the process, and ensure every job is completed on time and to the highest standard. Whether you’re refreshing a single room or transforming an entire property, you can rely on us to bring your ideas to life with skill, care, and dedication. Get in touch today for a free, no-obligation quote.
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Latest review:
Bathroom Fitting- 9 Nov 2025
Very good work. Alaa repared the tap in my bathroom and fixed a broken tile. The end result is excellent. I highly recommend.

4.1

Top rated Extension Builders

Our Extension Builders in Grays Inn, are rated 4.1 out of 5 based on 18 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 Grays Inn?

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 Grays Inn 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 Grays Inn who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Grays Inn?

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

Find extension builders in Grays Inn with MyBuilder

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

Step 2: Compare different extension builders in Grays Inn

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

Step 3: Hire Grays Inn extension builders with confidence

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

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

What to ask a Grays Inn extension builder before hiring?

Before hiring an extension builder in Grays Inn or extension building company in Grays Inn, 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 Grays Inn?

An extension builder in Grays Inn 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 Grays Inn 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 Grays Inn?

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 Grays Inn 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 Grays Inn 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 Grays Inn

Can an extension builder in Grays Inn help with planning permission?

Yes, many extension builders in Grays Inn 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 Grays Inn handle everything from design to construction?

Many Grays Inn 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 Grays Inn help with materials and finishes?

Yes, most extension builders in Grays Inn 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.