Extension Builders in Mitcham, Greater London

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (22 reviews)

Easily find verified Mitcham, Greater London Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in Mitcham, Greater London.

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 Mitcham, Greater London

3140 Results

Sort by:

Vasilis Bachos
Rating: 5 out of 5
Extension Builder in Mitcham, Greater London
My name is Vasilis and I am an enthusiastic individual who loves what I do. I have 35 years of experience in construction and I am ready to take on any requests! One thing to keep in mind, I don't speak very good English; however rest assured I have way to tackle that minor inconvenience!
Get in touch
Latest review:
Hard Flooring- 26 Dec 2025
Job done very well. Thank you Vasilis. Changed door lock and toilet seat. Very good time keeper and completed both jobs well.
CapitalFix Construction
Rating: 5 out of 5
Extension Builder in Mitcham, Greater London
Essex based construction company. Over 22 years of trade experience. No job too big or small! -Extensions -Loft conversions -Brickwork -Driveways -Landscaping -Renovations Simple. Honest. Building.
Get in touch
Latest review:
Bricklaying- 5 Sep 2023
Unbelievable work, hard working. And helpful every step off the way would highly recommend!!
I.d london construction ltd
No reviews yet
Extension Builder in Mitcham, Greater London
Extensive knowledge of new build and renovations. Family run business. Specialise in loft conversions, kitchen and bathroom renovations
Get in touch
Surrey construction 1touch living
No reviews yet
Extension Builder in Mitcham, Greater London
Hi we have been trading for 40 years we are general builders undertaking new builds- extensions -loft conversions- refurbishments
Get in touch
Phoenix Logis Limited
Rating: 1 out of 5
Extension Builder in Mitcham, Greater London
We have many years experience in the UK market in refurbishment and domestic and non domestic property alterations. This includes heavy structural alterations and house extensions and reconfigurations for very high end clients delivering in the range of Prime and Super Prime Projects for very high end clients. This getting the projects from cradle to grave making sure we meet our targets on time and budget making sure the clients are happy with the results we deliver. Our works starts with the assistance of making all the necessary paperwork for the client, ground works, internal refurb, heavy and light structural alterations, in a few words all trades in our hand for internal and full external works this including scaffolding.
Get in touch
Latest review:
Restoration & Refurbishment- 1 Feb 2026
The WORST experience I have ever had with a tradesman. I would strongly advise others to stay clear. There was no schedule of works at any stage. Adrian failed to plan, failed to communicate agreed works, & did not even tell his own workforce what they were meant to be doing. There was no evidence of professional oversight or management, resulting in chaos & extreme delays. I was repeatedly misled. He stated that Building Control had been contacted & paid for; but when I contacted them directly they confirmed no application or payment had been made. He damaged my property & instructions were ignored. He was rude, aggressive & shouted at me in my own home, which I found intimidating as a woman. Neighbours also complained about his behaviour. Despite multiple extensions, the job was left unfinished with little communication. He caused significant stress & a serious loss of time & money. The matter is now being resolved through the courts. I would NOT recommend him under any circumstances
Victoria Park Interiors ltd
No reviews yet
Extension Builder in Mitcham, Greater London
I’m a 61 year old hard wood joiner, I’ve worked on big projects all my working life, And a vast array of buildings, I worked for a company for 20 years and specialise in high end interiors and building works.
Get in touch
SPEKT GROUP LTD
Rating: 4.8 out of 5
Extension Builder in Mitcham, Greater London
We are a team father and sons, with over 30 years of experience in Wood Occupations and construction sites, who's goal it's to provide our customers with quality services.
Get in touch
Latest review:
Carpentry- 11 Mar 2025
Great work and would recommend!
Jed Contractors ltd
No reviews yet
Extension Builder in Mitcham, Greater London
Loft conversion, extensions , refurbishment , maintenance , multitrader , flooring , kitchens, bathrooms , roofing , plumbing , heating.
Get in touch
PJ Builders
Rating: 5 out of 5
Extension Builder in Mitcham, Greater London
Over 30 years of history, in the Construction industry, working in both the Commercial & Domestic sectors. I work on recommendation and word of mouth and have many repeat customers and happy client's.
Get in touch
Latest review:
Conversions - General- 26 Apr 2024
A veritable small nugget of gold amidst an enormous cascade of falling rocks.........Peter and his team were amazing....no fuss, no drama, no add-ons or extras, an honest job, at an honest price, by an honest man.
TOP BUILDERS LONDON LTD
Rating: 5 out of 5
Extension Builder in Mitcham, Greater London
About Us We have had the privilege of working with numerous reputable companies in both residential and commercial sectors. At TOP BUILDERS LONDON, our unwavering commitment lies in comprehending and fulfilling our clients’ distinct requirements. We excel in overseeing all aspects of property maintenance, ranging from minor repairs to extensive refurbishment projects. Our devoted team takes immense pride in their work, catering to our clients’ needs with utmost dedication.
Get in touch
Latest review:
Demolition- 30 Apr 2024
Excellent Customer Service. Did a wonderful job for my shed removal and was very reasonable and pleasant. Thank you very much Fatos.
AJ brickwork
No reviews yet
Extension Builder in Mitcham, Greater London
Bricklayer extensions and houses all types of walls
Get in touch
StonneBridge Construction Ltd
No reviews yet
Extension Builder in Mitcham, Greater London
Home Renovation & Transformed Specialists. Complete re-design & builds internal & External. Offering Precision, Quality & built to last projects. Large or small, every detail matters to us. We pride ourselves on delivering quality applications to all areas of home renovations. Offering our in-site, knowledge & experience to give you the best transformations for your money. Where its a knock through to open up a kitchen dining space, or full on rear & side extensions, we have got it covered. Offering complete all in packages to keep ‘ The StonneBridge Way’ a stand out finished product to be proud of for many years to come. Precision to every detail and going above and beyond to give you solid clean lines, easy flow feels, and light open spaces. And we don’t just do internal renovations! Give us an idea, and we will transform your gardens into showcase scapes. Vibrant and modern curbed appeal with front of House re-designs for driveways and front gardens. We are the complete package service & also the single package service. Paint & decorating, built-in wardrobes, loft conversions, kitchens, bathrooms, ground floor renovations. We cover all aspects of the trade. Tried, Tested & Trusted with a team of skilled tradesman.
Get in touch
GARDEN AND BUILDING SERVICES LIMITED
New on MyBuilder
Extension Builder in Mitcham, Greater London
We are a reputable company specializing in all aspects of home improvement, including flooring, construction, gardens, electrical work, plumbing, ceilings, and painting. We hope to meet your expectations.
Get in touch
Dreamland Construction ltd
No reviews yet
Extension Builder in Mitcham, Greater London
We the “Dreamland Construction Ltd” are a general building firm. We offer a full range of services from architectural and structural design to dealing with planing permissions and council applications. We only use reputable and qualified trades to complete our projects on time in the most professional way possible. We undertake a wide range of works including new builds, extensions, Loft conversions, refurbishments, Kitchens, bathrooms, plumbing, electrics and decorating.
Get in touch
Gotbath UK Ltd
Rating: 4.7 out of 5
Extension Builder in Mitcham, Greater London
Gotbath UK Ltd is London based family construction company committed to deliver an exceptional service on budget and time. Whether you require an extension, loft conversion or remodelling an existing property, we provide a full service. We work together with profesional as architects, designers, engineers etc
Get in touch
Latest review:
Extensions- 20 Feb 2020
Decent builders but with extremely poor communication skills. First the good points: 1. They are good at internal finishes 2. They create and use a Statement of Work (SOW) to track all costs of the project, so there were no major surprises in the project 3. They are friendly and hard workers - who arrive on time Gotbath UK Ltd used subcontractors to build us a 6 meter rear extension. Although they had an in-house architect, they did not know the law around boundaries which resulted in a conflict with our neighbours. After spending hundreds on hiring a boundary surveyor, the initial wall had to be re-built within our boundary. Gotbath did not take any responsibility for the wrong information they provided to us regarding boundaries and charged us for the rebuild. When discussing how to finish the inside of the extension, GotBath were extremely slow in ordering supplies and in general responding to us, so we took matters into our own hands and ordered materials ourselves which were removed from the SOW provided to us. At the end of the project, finishes took a long time and required constant chasing. Final gas, electrical and warranty documents took a long time to reach us and required a lot of chasing too. I have very little confidence that GotBath will honour the warranty document they have provided to us. It's a shame because I can see GotBath have a lot of potential as a builder. However, their lack of communication has really let them down.
Gabe’s Bricks
No reviews yet
Extension Builder in Mitcham, Greater London
Experienced Bricklayer, General Builder. Anything from a Garden Wall, house extension or a complete new house.
Get in touch

4.1

Top rated Extension Builders

Our Extension Builders in Mitcham, Greater London, are rated 4.1 out of 5 based on 22 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 Mitcham, Greater London?

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 Mitcham, Greater London 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 Mitcham, Greater London who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Mitcham, Greater London?

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

Find extension builders in Mitcham, Greater London with MyBuilder

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

Step 2: Compare different extension builders in Mitcham, Greater London

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

Step 3: Hire Mitcham, Greater London extension builders with confidence

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

Mitcham, Greater London extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Mitcham, Greater London extension builder before hiring?

Before hiring an extension builder in Mitcham, Greater London or extension building company in Mitcham, Greater London, 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 Mitcham, Greater London?

An extension builder in Mitcham, Greater London 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 Mitcham, Greater London 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 Mitcham, Greater London?

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 Mitcham, Greater London 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 Mitcham, Greater London 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 Mitcham, Greater London

Can an extension builder in Mitcham, Greater London help with planning permission?

Yes, many extension builders in Mitcham, Greater London 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 Mitcham, Greater London handle everything from design to construction?

Many Mitcham, Greater London 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 Mitcham, Greater London help with materials and finishes?

Yes, most extension builders in Mitcham, Greater London 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.