Extension Builders in Dartford

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.5 (16 reviews)

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Some of our top rated extension builders in Dartford

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Vikram
Rating: 5 out of 5
Extension Builder in Dartford
Vikram building works is a building firm that primarily focus on renovation and refurbishment, house extensions , bathroom fittings, kitchen fittings . Our main aims are delivering quality service on time and at consequences of our client. Satisfaction of clients is always our priority .
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Latest review:
Bathroom Fitting- 2 Feb 2026
Vikram is a very hardworking man that takes great pride in his work. He is very accommodating and always put our wishes first. From start to finish we had no issues and hope to hire him again in the future.
Don Buildings Ltd
Rating: 4.9 out of 5
Extension Builder in Dartford
Don Buildings Ltd Client satisfaction is our primary concern and goal. If you are looking for top quality efficient and professional service, so look no further Don Buildings Ltd is here for you For and on behalf of Don Buildings Ltd, Donatas
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Latest review:
Extensions- 27 Apr 2024
Super professional job, clean and efficient.
LGM & sons building services kent.
Rating: 5 out of 5
Extension Builder in Dartford
Hi my name is Lewis and I am a highly experienced builder who has been working in the construction industry for over 20 years. I have a passion for providing honest, professional and high quality work at affordable prices. I worked in London as a Site Manager for 10 years, which developed my great eye for detail and experience in working to strict deadlines. Over the years I have assembled a superb team of skilled tradesmen so all works are covered. All domestic and commercial building works undertaken. -Design and build -Extensions -Full renovations -Bathrooms -Kitchens -Media walls -Drive ways -Landscaping From our initial free visit with you, we offer expert advice, planning and design ideas to bring your vision to life. Contact us to book in your free quotation, and begin building your dream.
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Latest review:
Lewis and his team did a wonderful job refurbishing our 2-bed flat. Work included completely gutting the flat, re-wiring, re-plumbing, stud walls, fitting new doors, installing new bathroom and kitchen. We couldn’t be happier with our new home. All work was carried out to the highest standard, on time and as planned. Lewis is a perfectionist and fantastic to work with, always listening to what we asked for. We couldn’t recommend Lewis more and will always be using him in the future.
Jacques alain LTD
Rating: 2.4 out of 5
Extension Builder in Dartford
Hi all . I’m Alain I will turn your blueprints into high-quality, lasting structures with a commitment to precision and safety. With years of hands-on experience, I specialize in bringing together, coordinating trades, and ensuring that every project is completed with superior workmanship ontime and on budget, we cover all aspect of your project from design and permit to construction and final installation. an obviously without breaking the bank. Do not hesitate thanks
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Latest review:
Kitchen Fitting- 23 May 2026
Please don’t hire this person, after he did half the job he disappeared, left my radiators and washing machine outside not connected back. kitchen tiles fitted, no grout, plastering half done. Job was supposed to have finished in a week, he was not consistent, Started job on 30th April, he asked for half of agreed labour charge after collecting he disappeared on the 17th May with my house keys. Now he is not answering his phone or messages. Not an honest person at all. He needs to be reported otherwise he will continue causing lots of stress to homeowners
Truly Served
Rating: 5 out of 5
Extension Builder in Dartford
We do all types of building work including extension,plumbing, electric,wood work etc. but our specialty is bathroom and kitchen fitting. We are passionate, hardworking, punctual and reasonable in price. We keep monitoring on all aspects and finishes of project up to end.
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Latest review:
Kitchen Fitting- 20 Dec 2025
Great service from the builder. He listened to everything that I wanted & provided really helpful advice. He completed the job to a great standard and am really happy with the results. I wanted new kitchen countertops and electric hob/sink and tap fitted instead of remodelling my whole kitchen. I also felt very safe with leaving him to work alone in my house. Would recommend and use again. Thank you!
LSQ Construction Ltd
Rating: 5 out of 5
Extension Builder in Dartford
We have over a decade of experience in the construction industry. We specialize in full house refurbishments including Extensions, loft conversations and new built. We have carried out project all over London specifically in east London and Essex. At LSQ, we pride ourselves on being a trusted company in the construction industry, delivering exceptional craftsmanship and solutions tailored to meet the unique needs of our clients. With years of experience in construction industry, we are committed to turning visions into reality through meticulous planning, quality materials, and skilled execution. Our team of dedicated professionals works closely with clients to ensure every project is completed on time, within budget, and to the highest standards. When it comes to building dream homes, we approach every project with integrity, precision, and a passion for excellence. Rest assured we are the builders where quality matters. Let us help you bring your construction goals to life. At LSQ, your vision is our mission.
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Latest review:
Absolutely fantastic. Syed and his team was always on time. Very reliable and extremely helpful. Syed always took the time to recommend me the best.
Sterling maintenance solutions ltd
No reviews yet
Extension Builder in Dartford
Sterling Maintenance Solutions Ltd is a newly established, family run maintenance provider with a wealth of experience in the building trade. We strive for the highest standard of work at reasonable prices. Whether it’s an extension to a small handyman job, we can do it all. We are a one stop shop for your every need.
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LACJ Maintenance
No reviews yet
Extension Builder in Dartford
LACJ Maintenance is a dedicated company that works to a very high standard. All works undertaken. From digging the foundation to the little finishing touches. Any work needed doing LACJ Maintenance can do it. We keep everything in house so all works meet the expectations.
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RK Improvements Limited
New on MyBuilder
Extension Builder in Dartford
We at RK Improvements are a family-run building company with over 35 years of experience delivering high-quality workmanship across all aspects of the building trade. Our reputation has been built on reliability, attention to detail, and a commitment to customer satisfaction. From renovations and extensions to general building works and complete property transformations, we take pride in providing a professional service from initial consultation through to project completion. We value long-term relationships with our clients and look forward to helping bring your next project to life. Head to our instagram page for past work. Search for @rkimprovements
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NGBROTHERSLTD
Rating: 5 out of 5
Extension Builder in Dartford
HI TO ALL, WE ARE A COMPANY DOING All aspects of construction work, 3D PLANNING DESIGN ,New Build ,Extensions,loft conversions ,PRC HOUSE REPAIR ... All aspects of internal high end finish ——CABINET MAKING, GENERAL CARPENTRY, LANDSCAPING NO JOB TO SMALL !!! YOUR SATISFACTION IT'S OUR PRIORITY ...... THANK YOU!!!
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Latest review:
Joinery & Cabinet Making- 20 Nov 2019
I had to put the job off until after Christmas, but Ghenadie & brother was very polite and professional in providing me with a decent quote that included the material/labour for the work that had to be done.
CRI ltd
Rating: 5 out of 5
Extension Builder in Dartford
With over 40 years experience, CRI can handle any complex assignment. Cost reduction and goal achieving in a timely and efficient manner. We undertake in any of the following: - General house/garden maintenance - Building extensions - Install of insulation - Stud partition walls - Suspended, gridded ceilings - Renewal of plasterboard ceiling/walls - Downlighting and spotlights - Certified electrician - Painting and decorating
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Latest review:
Restoration & Refurbishment- 21 Jul 2025
Despite the fact that CRI was a new member on the app with very few reviews, Jon came across very professional and accommodating and priced the job swiftly and fairly. I took a pun and awarded CRI the job. It took circa 2weeks and during this time Jon and the team where exceptional. In order to catch up and meet deadlines they were more than happy to do full weekends and always left the site clean and tidy. During the works, the team always kept me in the loop with photo updates on whatapp and next steps. I would highly recommend CRI.
KK Construction London Ltd
Rating: 5 out of 5
Extension Builder in Dartford
Hello my name is Robert and I have 27 years of experience in all fields. When it comes to business, I have done a lot of work all around England including loft conversions, extensions, electrical work, refurbished houses inside and out, plumbing, gas safe boiler installations, partitions, ceiling, doors, kitchen, bathrooms, painting, tiling, double glazing, flooring.
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Latest review:
Bathroom Fitting- 14 Sep 2021
Robert and his team were fantastic very happy with the end result that was finished within the promised time I would certainly use them again
AFRIDI CONSTRUCTION LTD
Rating: 5 out of 5
Extension Builder in Dartford
We are a professional construction company delivering high-quality workmanship across all types of building and home improvement projects. Our services include extensions, refurbishments, loft conversions, and full renovations. We specialise in installing double glazing windows, aluminium windows, and UPVC windows and doors, combining durability, energy efficiency, and modern design. We also design and fit bespoke kitchens and bathrooms tailored to your needs. From start to finish, we focus on reliable service, attention to detail, and excellent results on every project.
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Latest review:
Windows & Doors (uPVC & Metal)- 24 Feb 2024
5 star nice jab good price
Thomas Carpentry & Construction
No reviews yet
Extension Builder in Dartford
Hi, My name is Tom the owner of Thomas Carpentry & Construction, I have been working as a Carpenter for 7 plus years. I have done multiple extensions, loft conversions, kitchen fittings ect but now it’s time for me to work for my self & deliver my expertise to my own clients. I’m very hard working & I won’t finish till the work is done.
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callisto homes
No reviews yet
Extension Builder in Dartford
Priding ourselves on our ability to not only meet, but to exceed project deadlines, whilst focusing a Partnering Approach and Consistent Quality we still aim to present solutions to improve our clients overall build experience . Undertaking New build, refurbishment and extension works, in house surveyors, Project managers and technical support your in safe hands with Callisto
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F&N HOME IMPROVEMENT
Rating: 5 out of 5
Extension Builder in Dartford
Extension, loft conversion.Painting ,tiling ,roofing. Porches,kitchen, bathroom refurbishment etc
Get in touch
Latest review:
Restoration & Refurbishment- 12 Dec 2021
Flamur did a great job on repairing, plastering and painting our damaged walls and ceilings. He also matched and replaced a wooden ledge which was damaged. He was very responsive, knew exactly what was needed to make a perfect finish and completed the works in a timely manner to a very high professional standard. He also helped source materials that we needed. We were very pleased with the outcome and would use him again. We couldn't recommend him highly enough.

3.5

Top rated Extension Builders

Our Extension Builders in Dartford, are rated 3.5 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.