Extension builders in Dartford

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.8 (16 reviews)

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Some of our top rated extension builders in Dartford

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Kegel LTD
Rating: 5 out of 5
Extension Builder in Dartford
Kegel Group is an experienced construction contractor with over 15 years of experience across residential and large-scale construction projects in the UK. Our team covers a wide range of building works, from smaller refurbishments and repairs to complete house renovations, extensions and new-build projects. We specialise in brickwork and blockwork, foundations, drainage, roofing, SFS, façades and cladding, GRC, stonework, repointing and external works. We can also provide experienced carpenters, electricians and plumbers when required, allowing us to manage complete projects from start to finish. Our team has extensive experience working on major construction developments, where quality, safety, programme and attention to detail are essential. We are flexible in size and can provide a small team for private residential works or increase our workforce for larger projects and tight programmes. At Kegel Group, our focus is simple: quality workmanship, reliable delivery and getting the job completed properly and on time.
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Latest review:
Bricklaying- 19 Nov 2019
Alex is a polite professional who knows his job. He did a good job for me. I can recommend him.
AP Holloways
Rating: 5 out of 5
Extension Builder in Dartford
A P Holloway’s Construction Ltd is a leading and reputable Construction Company serving central London, Kent and Surrey. We take on all types and sizes of projects, and cover all aspects of residential and commercial construction.
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Latest review:
Plastering- 5 Sep 2023
Alfie & Paul were very friendly and gave good advice. They were efficient and on time. Did the job on time and within the specified time. I have no problems with their work and would recommend them to others.
Azure Notions Limited
Rating: 5 out of 5
Extension Builder in Dartford
Azure Notions Ltd based in South East London with a geographical coverage across the whole of London, South East and home counties. Azure Notions are a highly respected contractor delivering new build, refurbishment, project management and design and build solutions to public and private sector clients. Azure Notions specialises in the education, high quality residential and commercial sectors across which the company has developed an extensive and diverse portfolio.
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Latest review:
Fencing- 22 Jun 2023
Didn't end up using them however they took time to come and quote me and was very professional.
JBF Carpentry
Rating: 4.9 out of 5
Extension Builder in Dartford
I am a fully qualified carpenter with a NVQ level 2 in Carpentry and can also offer joinery services. I have been working in Carpentry and joinery for several years. I can Also offer all double glazing services.
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Latest review:
Carpentry- 19 Sep 2024
Great job by Jack and Co . Turned up on time, answered questions and were neat and tidy. Will definitely be hiring again. Highly recommend.
Jai construction Ltd
Rating: 5 out of 5
Extension Builder in Dartford
We are the experienced any kind of building work from the long time.
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Latest review:
Excellent work, honest, reliable, friendly and very professional. I would definitely recommend. Already planning to use them and have recommended to my friends group as well.
Fm building contractors ltd
Rating: 5 out of 5
Extension Builder in Dartford
FM Building Contractors Ltd is London based builders HOME EXTENSIONS PROFESSIONAL BUILDING & BRICKWORK SERVICES Providing a range of building services from walls and block paving, extensions and conversions to complete new builds, we only work with highly trusted and experienced tradesmen registered with the appropriate bodies. FM Building Contractors Ltd is proud to have earned a reputation for fast and efficient turnaround, reliability, transparency and professionalism.
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Latest review:
Groundwork & Foundations- 19 Jul 2024
Great job very efficient will consider for further larger projects
CTU Interiors Ltd
Rating: 5 out of 5
Extension Builder in Dartford
I have over 15 years experience working on the tools. I started building work with my Dad when I was still in school and joined him professionally when I was 19, I am now 37. I started on suspended ceilings and plaster boarding walls and ceilings. Then I moved into more residential works doing extensions and refurbishments. I have a good team of guys around me that between us we can get any job done for you. Customer satisfaction is very important because you are as good as your last job!
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Latest review:
Plastering- 9 May 2016
Managed to fit me in at short notice and the plasterer did a thoroughly professional job and was pleasant with it.
CREMAD LTD
Rating: 5 out of 5
Extension Builder in Dartford
.We're a highly motivated team, quality and client satisfaction oriented with a brand new company, summing up over 25 years of combined experience in prosperty refurbishment for both owners and council houses & flats. We're a Property Refurbishment Specialist Our jobs mainly consists of Interior & Exterior Renovations(plastering, plumbing, carpentry, tiling, painting, flooring) Kitchen & Bathroom Remodelling
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Latest review:
Painting & Decorating- 20 Apr 2024
Fantastic! Very lucky to have found Emad. On time, hard worker, clean and tidy, very nice guy who was easy to deal with and clearly knew what he was talking about. The room which he decorated looks great. Thank you!
Knl ltd
Rating: 5 out of 5
Extension Builder in Dartford
Successful construction company est. 2011, delivered multiple successful projects throughout London, ranging from extensions and loft conversions to complete renovations and new builds. Two projects were featured in Evening Standard. Looking to add new projects to our portfolio.
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Latest review:
I am an Architect and I have used KNL for many projects over many years. His workmanship is excellent, but the best thing is Nick is very honest, proactive and pleasant to work with.
Bambram Investments LLP
No reviews yet
Extension Builder in Dartford
Domestic & Commercial builders - New build & Refurbishment. Project Management, Surveying, Ground works to Completion. Structural Alteration Work, Extensions, Office fit out, Demolition & Strip out. Insurance work undertaken. Glazed & Solid office partitions & Suspended Ceilings Cat A & B fit out works Fully Insured, Experienced with References available.
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G G Property Development Limited
Rating: 5 out of 5
Extension Builder in Dartford
We are a friendly hard working company. We pride ourselves on archiving high standards of works in short time periods. We have carried various works from new builds, complete property refurbishments, extension, loft conversion, kitchens, bathrooms, electrical and plumbing works, plastering, rendering. All works are guaranteed and fully insurance. We are a commercial, industrial and domestic company. We have many photos of works and website shall be finished in the near future.
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Latest review:
Loft Conversion- 5 Dec 2018
Firstly the date of job posting and date of completing is all down to me not being ready with finances!! Secondly, and more importantly, GG Property were the most wonderful and professional bunch of lads you can hope to met. The work was done with such enthusiasm and to such a high level of detail. We could not be happier with the finished job. Thirdly, the great building work aside, GG Property were polite, happy, friendly, punctual and great communicators. All emails answered swiftly and with accurate information. No question was to silly and no concern (this was our first major building working) was to small to be addressed. Finally we are so pleased with work we are awaiting a quote for our bathroom and look forward to getting that job completed!! In short my experience with GG Property was nothing but top quality work and customer service. Any fears of the classic 'cowboy builder' could not be further from the truth; GG Property are a hard working truly lovely bunch and we would highly recommend them.
ASC BUILDING
Rating: 5 out of 5
Extension Builder in Dartford
We specialise in extensions, garden rooms, patios and lanscape gardening. I myself have 20years experience in the building trade. Trades which include: Ground works/footings and drainage, Bricklaying and pointing, RSJ installation, Roofing, Screeding, Stud walling, Plastering, Guttering/fascias and soffitts, Landscape gardening, Patios/Decking, fencing and Block paving I offer a hardworking and honest days work, at fair prices and an excellent finish.
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Latest review:
Bricklaying- 13 Nov 2023
Adrian was excellent on this job. He came had a look gave us a firm date and stuck to it even though it was a days job. On the job Adrians communication was simple and took everything we spoke about on board. job was done with no issues and site was left clean. Thanks Again Adrian.
Bexley quality builders limited
Rating: 5 out of 5
Extension Builder in Dartford
building and carpentry Services . From our services from high end commercial to residential projects ,our extensive experience is in services like loft conversionskitchen setup and renovationshouse extensionback garden patioflooring, bathsnew construction building work etc. We have more than 500 happy and satisfied customers . We offer best price for the services along with flexible working hours.
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Latest review:
Sandeep was very punctual, good communicator and did a nice job. I was pleased with the work and the quote was fairly priced, after some outrageous quotes I got from others. I would recommend Sandeep in the future.
House2Home
Rating: 5 out of 5
Extension Builder in Dartford
House to Home Atelier is a local building company based in Abbey Wood, South East London. We specialise in end-to-end home renovations and construction, from initial design and planning to final finishes. Our team delivers loft conversions, house extensions, full refurbishments, bathrooms, kitchens, and bespoke interior solutions, always with a focus on quality, efficiency, and maximising space. We combine traditional craftsmanship with modern solutions, ensuring every project is completed on time, on budget, and to the highest standards. With our experience and carefully selected team of skilled tradespeople, we take care of everything from structural work and plumbing to carpentry, plastering, and finishing touches. We are local, accountable, and hands-on, so you always know who is managing your project. Your home is your investment, and we treat it as our own. Whether it’s a small repair or a full-scale renovation, we deliver solutions that maximise space, enhance character, and provide lasting quality.
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Latest review:
Works consisted of hip to gable loft conversion under permitted development and a refurbishment of the first floor of a semi-detached house into a four bedroom/bathroom layout, including new windows, balconies, wiring and plumbing as well as sound proofing the walls. With 100m2 of works this was my first introduction to a major building project and I was worried by the horror stories I have heard about builders. From the outset Monika set my mind at rest, listening to what I wanted, making helpful suggestions, offering tips for instance on how to save on the scaffolding and always asking me when choices needed to be made. She took the trouble to ensure that I knew what was happening, with daily photos of progress without the need for me to climb scaffolding. I was working to a tight timescale and budget, which Monika understood, and even having accommodated a number of changes including some additions, the project came in on time and on budget. All of the workers on the site were very professional and the quality of the work and the attention to detail was exceptional. I have no hesitation in recommending Monika and her team - I went into this project apprehensive and not sure what to expect; thanks to Monika, I came out the other side delighted by and looking forward to working with her and her team again to renovate my ground floor.
MK1
Rating: 5 out of 5
Extension Builder in Dartford
We are a are a small quality builders based in sidcup.We pride ourselves with being conscientious and reliable. Over the last 25 years i have built up a team of quality tradesmen to complement my own skills to provide a complete refurbishment service . All work is guaranteed
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Latest review:
Used Mark and his team for a number of jobs in our home. These included garage conversion, internal wall removal as well as re-formating hallway space. Job completed to a high standard ahead of schedule. Excellent communication throughout and work done at a competitive rate. Have recommended to friends and family and would certainly use again for future projects.
j strong
No reviews yet
Extension Builder in Dartford
Hello. I have worked in the building industry for most of my working career. general building works, extensions, repairs, maintenance.
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3.8

Top rated Extension Builders

Our Extension Builders in Dartford, are rated 3.8 out of 5 based on 16 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Dartford?

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

Find extension builders in Dartford with MyBuilder

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

Step 2: Compare different extension builders in Dartford

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

Step 3: Hire Dartford extension builders with confidence

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

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

What to ask a Dartford extension builder before hiring?

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

An extension builder in Dartford 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 Dartford 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 Dartford?

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 Dartford 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 Dartford 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 Dartford

Can an extension builder in Dartford help with planning permission?

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

Many Dartford 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 Dartford help with materials and finishes?

Yes, most extension builders in Dartford 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.