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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Bespoke Builds by JFN
No reviews yet
Extension Builder in Dartford
Bespoke Builds by JFN delivers comprehensive building and home improvement services, specialising in loft conversions, home extensions, kitchens, and bathrooms. From full renovations to day-to-day maintenance and carpentry, we manage projects with precision, transparency, and a commitment to exceptional workmanship. We take pride in delivering reliable service, smooth project management, and quality finishes designed to stand the test of time. Your space, built better
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D&S Construction
No reviews yet
Extension Builder in Dartford
We provide construction services from planning to competition. We specialise in new builds, renovations or fit outs! Flooring and conversions (lofts) or extensions! We also offer other services which cover any construction builds like new kitchen strip outs or installing a new bathroom STP.
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sbg services
Rating: 5 out of 5
Extension Builder in Dartford
I am safety conscious and able to fully concentrate on tasks. I like to keep my work zone in a clean condition and I’m trying to unfold my activity in a good organized steps.
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Latest review:
Groundwork & Foundations- 7 Nov 2024
From start to finish, Bogdan and his team were exceptional. After dealing with a previous builder who caused numerous delays, I found SBG Services. Bogdan came by the same day to assess the job and impressed me with his extensive knowledge. Given my tight schedule, he got to work immediately. I’ve never seen a builder work as hard as his team; they labored tirelessly from morning to night to ensure the project was completed promptly without compromising quality. Every trade I've had since has commented on their attention to detail. In just three weeks, they completed two extensions and transformed my garden. I will definitely be calling Bogdan back to handle my front garden early next spring.
SOLI CONSTRUCTIONS
No reviews yet
Extension Builder in Dartford
As a Construction & Consultancy Firm with over 24 years of work experience in building industry, We offer a wide range of services to our clients including: -All Types of Extensions -Loft Conversions -Flat Conversions -New Builds -Tanking and Damp-proofing -Wall and Chimney Removals -Steel Beam/Frame Installations -Structural Repair and Retrofitting -Renovation and Refurbishment -Planning Application Drawings and Submissions -Structural Calculations -Building Specifications Documents
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Ground Works
No reviews yet
Extension Builder in Dartford
We undertake all groundwork on site and we have permission from Thames Water to make all connections from site on to sewerage and surface water drains
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Saunders Developments Ltd
Rating: 5 out of 5
Extension Builder in Dartford
Saunders Developments are a Property Development company that specialise in Design & Build, Extension's, Conversions, Gas engineering & Steel Structures. We currently cover London, Surrey, hampshire, West & East Sussex. We have over 16 years of experience within the construction industry, with our grounding in Structural Steel. Our in-house team of expert's consist of CAD operators, Surveyors, Gas Engineers, Plumbers, Electricians, Builders & Carpenter's
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Latest review:
Restoration & Refurbishment- 22 Jan 2020
Saunders Developments were friendly, efficient and left my house clean and tidy, after what was quite a dusty and dirty job. I'm really pleased with the work and would happily recommend them to others!
BFUK
No reviews yet
Extension Builder in Dartford
Hello and welcome to BFUK Building Services, If you are thinking of renovating your home ,BFUK Building Services can provide building services of the highest standard at competitive prices. We always respect the customers wishes and work with them to achieve their results. 1.Electrician 2.Plumber 3.Kitchen &Bathroom 4.Brick Work 5.Driveway Paver 6.Painter & Decorator 7.Landscape Gardener 8.Demolition Contractor 9.interior and exterior refurbishments 10.Extension &Loft Conversion
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Harmony House
Rating: 4.8 out of 5
Extension Builder in Dartford
Why choose us? 1. We bring your concept to life 2. A friendly, professional and reliable service 3. Ensure the journey is an enjoyable one 4. Acting responsibly and transparently. 5. You’ll be delighted with the result!
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Latest review:
Extensions- 28 Feb 2026
Poor workmanship , messy guys , roof leaking , walls not done properly , overall not good workmanship as have to redo many aspects of the kitchen extension I have to now replace the kitchen roof which was of poor quality , never employ Peter or Mariusz
Z&S Builders Ltd
Rating: 4.7 out of 5
Extension Builder in Dartford
Z&S builders are an equal opportunities employer. We are diverse workforce made up of hardworking, experienced people . We provide our customers the best service. Our quality of work is higher and we never compromise with the quality.
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Latest review:
Painting & Decorating- 16 Sep 2021
Don’t trust them they lying in every bit we send them back on the first day of the work
Olive Rose Contractors Ltd.
No reviews yet
Extension Builder in Dartford
We are two local building firms from London/Essex that merged in 2022 to create OLIVE ROSE CONTRACTORS. We undertake all renovation/building works, including lofts, extensions and conversions. We have tradesman for all services, i.e. electricians, roofers, plumbers. We also provide rubbish clearance services.
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North London brickworks ltd
No reviews yet
Extension Builder in Dartford
I’m reaching out to introduce North London Brickworks Ltd, a professional bricklaying company based in North London. We specialize in all aspects of brickwork, including new builds, commercial, and residential projects. With a skilled team and a commitment to high-quality workmanship, we ensure every project is completed to the highest standards. We would love the opportunity to discuss any upcoming projects where our services could be of value.
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Kreshnik
No reviews yet
Extension Builder in Dartford
I've been in building trade working for others for more 15 years,now I think it's the time to start to work for myself
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Ideal Insolation Ltd
No reviews yet
Extension Builder in Dartford
"With over 20 years of experience in the construction industry, our family-owned business prides itself on delivering high-quality projects across Europe. Our expertise spans Greece, Germany, and Bulgaria, where we have successfully completed numerous construction projects. We believe in the importance of tradition, and our knowledge is passed down from generation to generation. Our passion for what we do drives us to achieve perfection in every build."
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LArchitects
No reviews yet
Extension Builder in Dartford
At LArchitects, we are passionate about creating innovative and sustainable architectural solutions tailored to our clients' needs. With more than 10 years of experience in the industry, our team of skilled architects and project managers is dedicated to delivering personalized service from concept to completion, with services ranging from concept design to construction, including expertise in planning, design development, and construction administration.
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ASM CARPENTRY
New on MyBuilder
Extension Builder in Dartford
ASM Carpentry I am a skilled finish carpenter with over 10 years of experience working in the United States and now based in London. I specialise in bespoke cabinetry, fitted wardrobes, kitchens, doors, trim, skirting boards, architraves, flooring and custom woodwork. I take pride in delivering high-quality workmanship, clear communication and reliable service. My goal is to complete every project to a professional standard, on time and with attention to detail. I am happy to provide free quotations and advice for projects of all sizes.
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G&B Welding
No reviews yet
Extension Builder in Dartford
Welder Fabrication steel work for extension house,building garage workshop…!
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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.