Extension Builders in Erith

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (21 reviews)

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

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 Erith

2530 Results

Sort by:

M p Noye building contractors
No reviews yet
Extension Builder in Erith
Respond straight away and meet up with Clients see what the jod is about and give them a price
Get in touch
Kapa International
No reviews yet
Extension Builder in Erith
kapa loft and extension has been providing the best services to south London and surrounding areas since 2017. We are a new business with builders has 12 years of experience in construction business. Fair prices, superior quality and exceptional customer service are guaranteed when you work with us.
Get in touch
growchance com ltd
No reviews yet
Extension Builder in Erith
Home Renovation & Structural Alterations in London. Growchance carries out home renovations, extensions and structural alterations for London homeowners who want the building work, specialist trades and final finishes delivered under one clear scope. Depending on the property and agreed brief, the work may include structural alterations, house extensions, loft conversions, kitchens, bathrooms, electrical and plumbing work, plastering, flooring, carpentry and decoration.
Get in touch
ArhiTERRA design and build
Rating: 5 out of 5
Extension Builder in Erith
We are a family business with a dedicated team specializes in works of any size ranging from the design through to building process. Our experience is vast and we stand for fast and high quality services beeing in construction industry for over 10 years . The following services are available: -design and build of extensions and lofts, -refurbisments, -swimming pools and outdoor spaces -landscape design More details can be found on our website.
Get in touch
Latest review:
Architecture- 5 May 2018
Contracted to provide options for a new garage office and storage solution. They turned up promptly and were very polite and professional. Through many discussions they ultimately offered up a very good bespoke solution for our situation and once planning is approved we will have no issue with looking to them to complete the actual build. We have had a lot of issues in the past finding reliable trades but with ArhiTERRA design and build we felt confident in their ability to both visualise and implement the build as well as follow through on their promises. I would say that for anyone considering discussing a project with them that it is worth your time to at least have a meeting with them and judge for yourself.
Oakley Renovations LTD
No reviews yet
Extension Builder in Erith
We pride ourselves on being a luxury refurbishment company, with your experience at the heart of everything we do. We started as a property development company now with a GDV of £6million, it was the struggle to find a construction company which matched our expectations of service which led to this arm of the company being formed. Our vision is built around 4 pillars; - Professionalism - Organisation - Communication - Quality Craftsmanship
Get in touch
BWH Construction
No reviews yet
Extension Builder in Erith
Hi my name is Brian, I have been working in the construction industry for over 20 years, in this time i have worked with various big companies on projects from the Channel tunnel, to demolishing houses digging basements then rebuilding. References available upon request
Get in touch
MarioM Construction Ltd.
Rating: 5 out of 5
Extension Builder in Erith
We have spent 15 years in the construction sector. Having experience both in the private sector and commercial sector, we use innovative and modern technology to complete your work. In effect, we achieve higher precision, shorter work times and due to this a lower cost for you. Our deal with a builders’ merchant allows customers to access unique deals which are not available elsewhere. You can learn even more about us by looking at our past projects
Get in touch
Latest review:
Extensions- 18 Jul 2016
Mario is a brilliant guy with full knowledge of the job. His workers were very punctual and hardworking and finished the job well. I would definitely recommend Mario to my friends and relatives and will use him in the future. Excellent Finish!!!
Simply Extensions and Lofts Ltd
No reviews yet
Extension Builder in Erith
We're specialist’s in house extensions, refurbishments and Loft conversions in South London and all surrounding suburbs, with the aim to deliver. Everyone that we use for finishing, is a trade. This gives you a very high quality finish that is seldom achieved by a 'General-trade'. We are fast, clean and produce showroom quality. Our individual professionals are more than just people we work with, they are people we know. We make or exceed our deadlines to ensure client satisfaction!
Get in touch
Rainham construction limited
No reviews yet
Extension Builder in Erith
We are a dedicated building company that specialise in extensions and renovations works.
Get in touch
Prestige Build and Management Limited
No reviews yet
Extension Builder in Erith
We are a South-East London-based company that specialises in design, bespoke property redevelopments, refurbishment, extensions and loft conversions. We also do roof replacements and create stylish bathrooms and amazing kitchens.
Get in touch
Highpoint roofing and building contractors
Rating: 5 out of 5
Extension Builder in Erith
At Highpoint roofing and building contractors we have over 40 years of experience Collectively, we take pride in our work to ensure 100% customer satisfaction With our free no obligation quotation you will be given all the advice you need to ensure total piece of mind our goal is to meet and exceed expectations of every customer all work carried out to the highest Possible standards and at very competitive prices
Get in touch
Latest review:
Roofing (Flat)- 6 Jan 2026
Completed the job as promised and was very tidy in his job
SW construction
No reviews yet
Extension Builder in Erith
I have nearly 15 years experience and do all types of including plastering, carpentry, brickwork, plumbing, tiling and decorating
Get in touch
Rainland Group ltd
No reviews yet
Extension Builder in Erith
Rainland Construction Ltd is a UK-based construction and property solutions company founded on the principles of integrity, excellence, and stewardship. Rainland is committed to delivering top-tier construction services that stand the test of time. We specialise in residential and commercial builds, renovations, and design-build packages for UK residents and diaspora investors. Our goal is to build not just structures, but lasting value for homeowners, developers, and communities. Our Vision To become a trusted leader in construction and development, transforming spaces and enriching lives through ethical and professional building practices. Our Services - New Residential and Commercial Builds - House Extensions and Loft Conversions Renovation and Refurbishment Projects - Design + Build Turnkey Solutions - Project Management and Consultancy - Sustainable & Green Building Solutions Why Choose Rainland? - Faith-Driven Integrity: Transparent, honest dealings at every stage.
Get in touch
96 Degrees Carpentry Ltd
Rating: 5 out of 5
Extension Builder in Erith
We undertake all aspects of Carpentry and General building works. Specialising in refurbishments and loft conversions we have a team of qualified and experienced carpenters, plumbers and electricians available for both residential and commercial works.
Get in touch
Latest review:
Decking- 23 May 2021
Excellent and professional job completed as quoted. Would highly recommend to future Clients.
Reform Building & Maintenance Ltd
Rating: 5 out of 5
Extension Builder in Erith
reform ltd have tradesman on hand with more than 16 years experience. We strive to give our best at all times. Our work is of a high standard. We offer competitive rates & great customer service. reform ltd have carried out work all over the Southeast and London. Our work varies from Property Extensions, Home refurbishment, Kitchens & Bathrooms Installations. Examples of our work can be found on our socials media pages.
Get in touch
Latest review:
Extensions- 3 Jan 2021
Reg was professional and organised from start to finish. Very tidy while working and always polite and cheerful. He was pretty much spot on with his timescales, working through weekends to make up unexpected delays in stock delivery. He managed to perfectly match the bricks of the porch so, as it is tied in, it looks like it’s part of the original build. Really impressed with every thing. We will definitely hire him again - in fact we have already asked him to quote for another job.
Cannon Building LTD
No reviews yet
Extension Builder in Erith
We are local building company to Billericay and surrounding areas, we undertake all types of building and maintenance works, Or team have over 100years combined experience. We offer free advice, estimates and quotations Our prices are always competitive And have many very satisfied customers
Get in touch

3.9

Top rated Extension Builders

Our Extension Builders in Erith, are rated 3.9 out of 5 based on 21 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 Erith?

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

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

What are the hourly rates of extension builders in Erith?

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

Find extension builders in Erith with MyBuilder

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

Step 2: Compare different extension builders in Erith

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

Step 3: Hire Erith extension builders with confidence

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

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

What to ask a Erith extension builder before hiring?

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

An extension builder in Erith 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 Erith 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 Erith?

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 Erith 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 Erith 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 Erith

Can an extension builder in Erith help with planning permission?

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

Many Erith 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 Erith help with materials and finishes?

Yes, most extension builders in Erith 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.