Extension Builders in Blackfriars

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4 (16 reviews)

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Some of our top rated extension builders in Blackfriars

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Ff360
No reviews yet
Extension Builder in Blackfriars
FF 360 Ltd offer a full and comprehensive range of excavation services, including site preparation, grading, trenching, and more. By using the latest equipment and techniques we can ensure that your project is completed safely and efficiently. All of our drivers are appropriately qualified and insured and follow best practice.
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G2 Brothers Construction
Rating: 5 out of 5
Extension Builder in Blackfriars
G2 Brothers Construction is a family business, we undertake all aspects of building works to an exceptional standard. Working with clients to bring their vision to life is our priority & we pride ourselves in being honest, efficient, reliable & professional whilst doing so. We carry out all types of building works from New builds, Extensions, Garages, Driveways, Roofing, to installing kitchens & bathrooms. Two honest builders based in Warlingham/Surrey.
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Latest review:
Kitchen Fitting- 12 Nov 2022
I am so happy with the work and professionalism of Tom and James. I had queried several companies and decided to work with G2 brothers based on how open and honest they were on the first visit for estimation of work. We discussed the work I wanted done, which was to replace the cabinets in the kitchen. We also discussed the budget I had and what the overall look I was going for. Throughout the whole project we discussed options, impacts and agreed together on next steps. They were a pleasure to work with, I will definitely use their services again. Great work!!!
AdrianConstruction
No reviews yet
Extension Builder in Blackfriars
My
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Amritpal singh
Rating: 4.5 out of 5
Extension Builder in Blackfriars
We are here to assist you and provide you the work you dreamt off on very reasonable prices so trust us with your house and we will do the best for you .please do understand that we have to pay to get contact details of customers so it’s important being a customer to check the portfolio before short listing a tradesman just to be sure that we won’t just be paying for nothing .
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Latest review:
Extensions- 4 Jan 2026
I hired Amrit based on positive reviews, but my experience was extremely poor. The work showed all the signs of a cowboy builder. I’m sharing this to help others avoid the stress, delays, and financial risk I went through. 1: No Respect for Contract or Deadlines Contract deadline was 15th September, which he completely missed. Despite delays, he demanded money almost daily. When I referred him to the payment and work schedule he signed, his response was: “I didn’t read it, I just signed it.” 2: Dangerous and Unprofessional Working Practices Brought in unqualified workers, many of whom could not speak basic English. He ignored safety standards throughout the project and wanted to use the same unqualified workers for gas work, which is extremely dangerous. When I objected, his response was: “Don’t worry, you will get a new house if it blows up as you have insurance.” 3: Work failed multiple building control inspections. He eventually refused to cooperate with the building inspector.
MBS Commercial construction Ltd
Rating: 5 out of 5
Extension Builder in Blackfriars
We at MBS Commercial construction Ltd, are a self sufficient construction company who specialise in commercial and industrial industries including facilities management, we also cover domestic clients and factions. We are construction line gold, all operatives are NVQ qualified in their respective trades and all supervisors hold SMSTS and first aid training. We take pride in our work and stick by our core key company values of; 1. Reliability 2. Transparency 3. Cohesion 4. Sustainability With these at the helm of all our dealings, we strive to deliver projects on time, within budget, safely.
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Latest review:
Carpentry- 15 Sep 2024
MBS provided a great service. They were professional and pleasant, communicated well and did the work required.
24 Hour Landlord Solutions Ltd
No reviews yet
Extension Builder in Blackfriars
24 Hour Landlord Solutions, provide IT and electrical, plumbing, gas, fire alarms and all sorts of commercial and domestic services these include PAT testing and etc…
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Ciprian Ghiurca
No reviews yet
Extension Builder in Blackfriars
My name is Ciprian Ghiurca, and I bring over 10 years of comprehensive experience in the construction and carpentry industry. Throughout my career, I have specialized in shuttering carpentry, gaining deep expertise in formwork and concrete shaping for various project types. For the past 7 years, I have served as a Supervisor, overseeing teams and ensuring the highest standards of quality, safety, and efficiency on-site. My leadership skills have enabled me to manage multiple projects smoothly and meet tight deadlines consistently. In addition, I have spent the last 5 years honing my skills in extensions, flooring fitting, guttering, fencing, and painting & decorating. This broad skill set allows me to handle a wide range of residential and commercial projects, delivering tailored solutions that meet clients’ needs and expectations. I am committed to providing exceptional craftsmanship, attention to detail, and reliable service. Whether you're planning a small renovation or a major extension, I am dedicated to ensuring your project is completed to the highest standards. I look forward to working with you and turning your ideas into reality with professionalism and expertise.
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Essex building contractor ltd
Rating: 3.7 out of 5
Extension Builder in Blackfriars
Essex building contractor ltd All building work
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Latest review:
Plastering- 7 Oct 2025
They didn't turn up
Ercan construction
No reviews yet
Extension Builder in Blackfriars
All types of building work Extensions Flooring Painting Electrics And more
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Annabaffer pierre
No reviews yet
Extension Builder in Blackfriars
I am a head working individual no jobs to big or to small to handle from St Lucia love to play football
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BCM STEEL ERECTING&FITTING LTD
No reviews yet
Extension Builder in Blackfriars
BCM STEEL ERECTING&FITTING LTD, a specialist company with experience in steel erecting and fitting. Our company is dedicated to providing high-quality services to businesses in the construction industry. We offer a range of services, including steel erection, steel fabrication,steel fitting and more. Our goal is to provide customised services that meet the unique needs of each of our clients to ensure their satisfaction.
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Carpentry
Rating: 3 out of 5
Extension Builder in Blackfriars
Carpenter
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Latest review:
Joinery & Cabinet Making- 5 Jun 2023
He started the job but went away without finishing it just because he couldn't fix the hinges, which wasn't a rocket science. I would never hire him again.
Creative Constructions London Ltd
No reviews yet
Extension Builder in Blackfriars
We are currently doing projects like extensions, loft conversions and refurbishments We have 20 years of working experience. We offer a multitude of services from the planning permission to the completion of the project.
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Leon building contractors limited
Rating: 5 out of 5
Extension Builder in Blackfriars
Hi.Welcome to our profile. We are well established building company working in London and surrounding areas. We are specialists in loft conversion and extension. All kind of building works undertaken.also happy to provide photographs and references of our previous happy customers.We offer free quotes.Fully insured,skilled trades men. Finish projects on time limit to suits you. We are proud member of Association of Master Tradesmen and check a trade. thanks for visiting our page.
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Latest review:
Extensions- 25 Apr 2025
we recently had the pleasure of working with Leon building contractors limited, and i cant recommend them highly enough! They carried out a single story rear extension, an internal garage conversion and porch to the front of the house. On top of that they installed our new kitchen and toilet suite downstairs all finished to a high standard. From start to finish Vic and his team were amazing nothing was too much trouble and were always happy to do anything without a fuss. Their attention to detail was first class. It wasn't only us who was impressed but our neighbors commented how friendly, respectful and hard working they all were and have already asked for his contact details. Vic trade contacts also helped us with windows/bi-folds and quartz worktops all high quality at much cheaper prices i could find myself! Thanks again to Vic and the team for doing such a brilliant job, we have no hesitation to use again in the future!
Cocis Construction Group
Rating: 5 out of 5
Extension Builder in Blackfriars
Cocis Construction Group LTD is a family-run construction company with over 25 years of hands-on experience in the trades. We specialise in home renovations, extensions, bathroom and kitchen refurbishments, and property development across London. As a young, ambitious company, we combine traditional craftsmanship with fresh ideas and modern techniques to deliver projects efficiently and to the highest standards. Our team takes pride in attention to detail, clear communication, and building lasting relationships with homeowners, landlords, and property investors alike. At CCG, we don’t just build structures—we bring visions to life, turning ideas into beautifully finished spaces. Contact us today for a free quote and see how our expertise and dedication can make your next project a success.
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Latest review:
Cocis Construction Group done the full interior painting of our 5 bedroom house and we are really happy with the result. The team was polite and worked very hard every day. They kept things clean and finished everything on time like they said they would. The paint finish looks great and the whole house feels fresh again. Would definitely recommend them if you need painting done.
AA Plus Roofing &Renovation ltd
No reviews yet
Extension Builder in Blackfriars
Minimum of 10 years of experience in residential and commercial roofing. Proficiency in installing, repairing, or replacing various roofing materials such as shingles, tiles, and metal sheets. Strong knowledge of local building codes and safety regulations related to roofing.
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Top rated Extension Builders

Our Extension Builders in Blackfriars, are rated 4 out of 5 based on 16 reviews from customers like you.

Quality screening

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 Blackfriars?

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

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

What are the hourly rates of extension builders in Blackfriars?

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

Find extension builders in Blackfriars with MyBuilder

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

Step 2: Compare different extension builders in Blackfriars

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

Step 3: Hire Blackfriars extension builders with confidence

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

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

What to ask a Blackfriars extension builder before hiring?

Before hiring an extension builder in Blackfriars or extension building company in Blackfriars, 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 Blackfriars?

An extension builder in Blackfriars 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 Blackfriars 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 Blackfriars?

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 Blackfriars 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 Blackfriars 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 Blackfriars

Can an extension builder in Blackfriars help with planning permission?

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

Many Blackfriars 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 Blackfriars help with materials and finishes?

Yes, most extension builders in Blackfriars 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.