Extension Builders in Dartford

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

Easily find verified Dartford Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in Dartford.

Select a service

How it works

Post your job for free

Tell us about your job, and we’ll alert suitable tradespeople in your area. It’s simple and free.

Tradespeople respond

Once your job is posted, you’ll get responses from interested tradespeople through the website.

Review profiles and choose

Browse profiles, work history, and feedback, then choose who you wish to share your details with.

Some of our top rated extension builders in Dartford

2134 Results

Sort by:

Jamie Wolvey Brickwork
No reviews yet
Extension Builder in Dartford
Hi There. We are a Bricklayer team specialising in all Brickwork. ie Extension, Footing brickwork , Garden walls , retaining walls and patios I’ve been a bricklayer for over twenty years coving work all over the south east of England Regards Jamie Wolvey
Get in touch
Silvertree Projects
No reviews yet
Extension Builder in Dartford
I am a specialist brickwork contractor and general building contractor I have 20 years experience in the industry. We carry out all types of work from residential to commercial. Garden walls, Extensions,New builds and Renovations. I also have references that can be provided on request.
Get in touch
Fisher construction ltd
No reviews yet
Extension Builder in Dartford
We do large construction work, new builds large extension and swimming pools.
Get in touch
Orama Group Ltd
Rating: 5 out of 5
Extension Builder in Dartford
Orama is the family run Construction Company of choice, for large and small scale projects operating throughout London. Offering a bespoke service and setting new standards in the construction industry.
Get in touch
Latest review:
I originally contacted Joe from Orama to fit a new kitchen for me. When he came to give me a quote, I hadn't yet chosen what I wanted. He really took the time to make several recommendations and so I decided to go ahead with him to design my kitchen fully and fit it. The team were so easy to work with and most importantly respectful in my home! Their attention to detail is second to none. He really understood the style I liked in one conversation. The finish is flawless. I highly recommend them!!
Peter Build
Rating: 5 out of 5
Extension Builder in Dartford
We offer professional service for all your local building requirements. With our team of professionals no job is too small or too big to handle. From Small Brickwork jobs to large extension work, we can do it. Our team of professionals have years of experience and know-how to carry out all jobs to the highest quality without charging extortionate prices.We are a small friendly local Builders with over 20 years experience!
Get in touch
Latest review:
Bathroom Fitting- 5 Nov 2019
I met up with Peter, told him what needed doing and he provided a detailed quote within days. I handed over a set off keys and basically left him and his team to get on with it! This was a time restricted job, he purchased all the material and provided all the receipts. I returned a week later to find the job completed to the highest standard surpassing my expectations. I will definitely be working with Peter again in the future and I would highly recommend him.
Worker Bee Property Developments LTD
No reviews yet
Extension Builder in Dartford
Hi there, Worker Bee Landscaping is a multi trade landscaping company that covers any aspects of your project, from building garden rooms, installing artificial grass and laying turf to patios, laying resin and fencing/walling. We can co-ordinate your project from early concept stages through to the final handing over to our happy clients. We pride ourselves on an extremely high standard of workmanship, taking great pride in the projects we undertake.
Get in touch
PK Design
No reviews yet
Extension Builder in Dartford
Hi, if you are looking for design and construction advice and help I can assist you!
Get in touch
Nextgen Cladding LTD
New on MyBuilder
Extension Builder in Dartford
Nextgen Cladding Ltd is a specialist roofing and cladding contractor delivering high-quality workmanship across commercial, industrial and residential projects. We specialise in flat roofing systems, EPDM rubber roofing, zinc, aluminium, copper and steel roofing, as well as a wide range of external cladding and rainscreen systems. Our experienced team is committed to providing durable, weatherproof installations finished to the highest standards. We pride ourselves on reliability, attention to detail, clear communication and completing every project safely, on time and within budget. Whether it’s a new installation, refurbishment or repair, we deliver professional solutions tailored to our clients’ requirements.
Get in touch
M and a contractors
Rating: 5 out of 5
Extension Builder in Dartford
We’re a local run business first time on my builder. Looking to expand from our word of mouth and recommendation from customers prior. Happy to help!
Get in touch
Latest review:
Plumbing- 18 Jan 2023
Ashley replaced my tap, he came when he said he would, done a great job. Would definitely use him again, thank you,
Smart windows
Rating: 5 out of 5
Extension Builder in Dartford
Smart windows from MKD windows Group are a family run business covering Essex and Surrey. We specialise in UPVC , Wood & Aluminium. Offering quality products at quality prices. Reliable service, no pushy salespeople just a straight forward price! Certass registered with a 10 year insurance backed guarantee.
Get in touch
Latest review:
Windows & Doors (uPVC & Metal)- 13 Mar 2026
Would highly recommend Dean, he removed my window and fitted French doors. Thank you.
Lanext Group Ltd
No reviews yet
Extension Builder in Dartford
We are a family-run British building firm offering high-quality workmanship rooted in traditional building practices. With generations of experience and a strong commitment to craftsmanship, we undertake a wide range of projects, both large and small. We pride ourselves on delivering dependable, professional services with a personal touch, offering free quotes, competitive pricing and guarantees for complete peace of mind.
Get in touch
Rrapi LTD
No reviews yet
Extension Builder in Dartford
Rrapi Ltd has over 20 years experience in the construction industry , a specialist contractor delivering high-quality Groundwork’s, Basement, New Build, Demolition , and Reinforced Concrete solutions, particularly for Commercial and Residential projects in London and surrounding areas. As a CHAS accredited contractor, we ensure the highest standards of safety and compliance on all sites We understand the challenges of complex, tight-access sites and pride ourselves on delivering safe, high-precision, and reliable structural work. Groundwork’s Basement’s New Build Underpinning Demolition Civil & Concrete Frames
Get in touch
Endeavour building & construction
No reviews yet
Extension Builder in Dartford
Hi i am a young aspiring building with 5+ years of experience trying to make your dreams come true
Get in touch
Planned Assets Ltd
No reviews yet
Extension Builder in Dartford
30years experience in construction
Get in touch
THT
No reviews yet
Extension Builder in Dartford
I am a reliable and experienced builder and bricklayer, offering a wide range of services including brickwork, extensions, renovations, garden walls, repointing and general building work. I take pride in delivering high-quality workmanship, working in a clean and professional manner, and completing all jobs on time and to a high standard. Customer satisfaction is very important to me, and I am always happy to offer honest advice, clear communication and competitive prices.
Get in touch
GEOMETRIS LIMITED
No reviews yet
Extension Builder in Dartford
Geometris is a construction company, founded on 2013 and based in London. We usually undertake construction works with contracts between £15,000-£2,000,000. Our team has very experienced builders, concrete workers, electricians, RIBA Architects and engineers, which allow us to undertake a large range of design and construction projects. We can deliver work of great quality in very short notice, with respect to each client needs.
Get in touch

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.

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 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.