Extension builders in Sidcup

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.3 (18 reviews)

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

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 Sidcup

2745 Results

Sort by:

MBS
No reviews yet
Extension Builder in Sidcup
Hello My name is Marek am 45 year old I'm working 22 years has Builder I can do do all house carpentry like kitchen fixing cupboards suspending Sailing wall partition Complete bathrooms All plumbing tiling and fixings
Get in touch
A. plastering
Rating: 5 out of 5
Extension Builder in Sidcup
Hi. My name is Fatos. I have been in construction for over 17 years. We undertake rendering, plastering and painting jobs. High standard finish in very competitive prices. We also do loft conversion,roofing, plumbing, electric, tiling, extension ect. Our prioritie is to get the job done in very high quality
Get in touch
Latest review:
Plastering- 22 Oct 2024
We needed to plaster our house ASAP and Fatos completed it in a short time. The house looks amazing, he was quick, efficient and was a great communicator. I would highly recommend him.
ADAMAC PLASTERING LTD
Rating: 5 out of 5
Extension Builder in Sidcup
With over 10 years of experience in the construction industry , I am a dedicated skilled plasterer / multi- tradesman committed to delivering high-quality work on every project. I pride myself on providing reliable, professional, and cost-effective solutions to meet my clients’ needs. Whether you’re looking for specific plastering services , home renovations, kitchen refurbishments, plumbing repairs, or any other type of building work, I offer an attentive, friendly service from start to finish. My goal is to ensure that each job is completed to the highest standard, on time, and within budget. I take great care in my work and always prioritize customer satisfaction. My clients can trust me to listen to their needs, offer expert advice, and deliver exceptional results. Fully insured and accredited CHAS and construction line with a proven track record of successful projects, I am always happy to provide references and showcase my previous work. Get in touch for a free, no-obligation quote!
Get in touch
Latest review:
Plastering- 16 Sep 2024
Adam and his assistant have done a fantastic job. Prompt response and quote. Arrived on time and were friendly and respectful. Got the job done and offered to come back if needed. 100% recommend.
Balham construction Ltd
Rating: 5 out of 5
Extension Builder in Sidcup
Balham construction are a London based refurbishment and construction company that offer a wide range of services from full Property refurbishment to extensions and loft conversions and everything in between
Get in touch
Latest review:
Tom and the team completed a full renovation of my flat. This included refurbishment of my kitchen, bathroom and general redecoration. The team were extremely hardworking and punctual and no job was too difficult for them. I would highly recommend their services.
Mels Construction Solutions
Rating: 5 out of 5
Extension Builder in Sidcup
Welcome to Mel’s Construction Solutions, specialising in loft conversions and house extensions. With 15 years of experience, we have gained extensive knowledge and expertise in providing top-quality services to our clients. We offer full building services for Loft Conversions Extensions Refurbishments Bathroom and Kitchen instillations All our work is guaranteed and done to the highest standards with competitive prices given.
Get in touch
Latest review:
I would highly recommend Meli and use his service again. He is reliable, friendly and extremely personable. Meli saved time and cost by explaining what could be done better. Very talented all rounded experience. He’s a great contractor and I am very satisfied with his work. Thank you Meli!
SEASOUTH BUILDS LIMITED
Rating: 5 out of 5
Extension Builder in Sidcup
At Seasouth Builds, we bring over 5 years of hands-on experience in the building and construction industry. Known for our loyalty, reliability, and attention to detail, we take pride in delivering high-quality workmanship on every project
Get in touch
Latest review:
Tiling- 24 Sep 2025
I hired seasouth builds because not only did he give a really reasonable quote, but he also had knowledge of tiling over retrofit underfloor heating - which other tilers seemed to be really hesitant to work with. The job was done to an excellent standard - he’s a real perfectionist. It did take a bit longer than expected, due to some floor level issues which he didn’t account for when he quoted. I was really worried about the price increasing out of my budget when we started running over time, but I was so grateful to find that he was a really honest guy who stuck to the agreed quote and didn’t try to make it my problem one little bit. He was polite and friendly throughout the whole job, turned up whenever he said he would, and kept in constant contact. Really honest (I happily left him unattended in my property). Customer service was excellent, nothing was too much trouble. 10/10 would recommend.
Ruben Ghalan
No reviews yet
Extension Builder in Sidcup
Plumber and builder available *Bathroom renovation *House renovation *Plumbing *Extension Whatever your request, we are here to help you out on reasonable price###
Get in touch
Tonymillerinteriorsltd
No reviews yet
Extension Builder in Sidcup
Hi Everyone! Tony Miller Interiors LTD is a construction company based in South East London and surroundings all over London and Kent. My company is offers various construction services- house extensions, refurbishment, loft conversions, new built, bathrooms, kitchens, basements,HMO conversion, etc. With over 7 years of growing experience in the Construction Industry, I have been working with numerous projects for private clients in a quick timeline.
Get in touch
AMMCASS LIMITED
No reviews yet
Extension Builder in Sidcup
General Construction, Plumbing & Heating, Electrical, Roofing, Landscaping. New Build, Extensions, Loft Conversions
Get in touch
Ben the builder
Rating: 5 out of 5
Extension Builder in Sidcup
Extension Loft conversion Landscaping General building work
Get in touch
Latest review:
Benny and his team rebuilt our bungalow to our architect's design. Complete internal reconfiguration, refurbishment and insulation (internal and external), extension, new bathrooms, kitchen; detached garage, outbuilding and landscaping. His pricing was very fair. His work outstanding. Very reliable, utterly trustworthy, courteous, very helpful and professional. Answered our prayers and cannot be recommended highly enough
AGR builds& design
Rating: 4.3 out of 5
Extension Builder in Sidcup
At AGR Build and Design, we pride ourselves on delivering high-quality craftsmanship and reliable service across a wide range of home improvement needs. From expert installation and repair of windows and doors to comprehensive carpentry work and bathroom fittings, our skilled team is committed to enhancing your home with precision and care. Whether you’re upgrading your space or handling essential repairs, you can count on us for professional results and excellent customer service—every time.
Get in touch
Latest review:
Carpentry- 5 Oct 2026
Gurpreet did the job professionally and helped with another small task. No complaints, job well done.
Master Builders Developments Ltd
Rating: 4.6 out of 5
Extension Builder in Sidcup
Newly Joined My Builder, We are a established Building firm specialising in Extensions, Loft Conversions and Refurbishments, we undertake commercial projects along with substantial size constructions. Our team over all elements of construction.
Get in touch
Latest review:
Roofing (Pitched)- 26 Sep 2024
Keep this company as first choice for ur building work.
Serroukh
No reviews yet
Extension Builder in Sidcup
We are builders/contractors based in Greenwich. We take on building work of all sizes right across London and surrounding areas. We can work with you from design and concept stage, using our architects and structural engineers, right up to the secondary finishings and painting stage, or we can carry out just the part of the project you wish for us to do. All our electrical & gas works are carried out by qualified electricians and plumbers. Please give us a call for an informal chat.
Get in touch
Starville Contractors
No reviews yet
Extension Builder in Sidcup
Starville Contractors is a specialist company delivering high-quality brickwork, plastering, and painting services for both domestic and commercial properties. With a strong reputation for craftsmanship and reliability, we work closely with homeowners, developers, and businesses to bring their projects to life. Whether it's building a new wall, plastering interiors to a smooth finish, or adding the perfect coat of paint, we take pride in every detail. Our skilled team is trained to handle projects of all sizes, from small home improvements to large commercial builds. We focus on delivering outstanding results, using the best materials and techniques to ensure long-lasting, professional finishes. At Starville Contractors, we believe in quality, efficiency, and excellent customer service. No matter the size or scope of the project, we are committed to meeting deadlines, staying on budget, and exceeding client expectations.
Get in touch
Big&small landscapes Ltd
Rating: 5 out of 5
Extension Builder in Sidcup
Big & small landscapes We are an established Landscaping firm based in Caterham, providing top quality garden and property transformation. With our team of experienced landscapers, this allows us to ensure all jobs no matter how big or small are completed to a high standard. We have featured in Channel 4's 'The Great Garden Revolution' and ITV's 'Love Your Garden'.
Get in touch
Latest review:
Bricklaying- 24 Nov 2023
Professional and easy to deal with...did a good job...
PACHO CREATE LTD
Rating: 5 out of 5
Extension Builder in Sidcup
Pacho Create specializes in high-quality loft conversions, home extensions, and full refurbishments—transforming homes into beautiful, functional spaces. With a focus on craftsmanship, planning, and client satisfaction, we bring your vision to life on time and on budget. Let me know if you want a more premium, modern, or friendly tone.
Get in touch
Latest review:
Tiling- 24 May 2026
I cannot recommend John from Pacho Create Ltd highly enough. I'm a very particular client with high standards, I was impressed by his care, patience, and professionalism throughout. He clearly takes pride in delivering quality work and paid close attention to every detail. Living in a small flat, I was concerned about dust, but John proactively created a solution to minimise disruption, which I really appreciated. He also gave excellent advice on budget-friendly waterproofing products. We had a challenge with large-format tiles, but John worked closely with me to plan the layout, ensuring a natural, balanced finish. The workmanship is outstanding – minimal wastage, precise alignment, and superb attention to detail. I wouldn’t hesitate to use John again, in fact, I’m already planning to have him back to tile around my bath in the near future. I highly recommend him to anyone looking for a skilled, reliable professional.

4.3

Top rated Extension Builders

Our Extension Builders in Sidcup, are rated 4.3 out of 5 based on 18 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 Sidcup?

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

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

What are the hourly rates of extension builders in Sidcup?

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

Find extension builders in Sidcup with MyBuilder

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

Step 2: Compare different extension builders in Sidcup

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

Step 3: Hire Sidcup extension builders with confidence

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

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

What to ask a Sidcup extension builder before hiring?

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

An extension builder in Sidcup 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 Sidcup 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 Sidcup?

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 Sidcup 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 Sidcup 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 Sidcup

Can an extension builder in Sidcup help with planning permission?

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

Many Sidcup 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 Sidcup help with materials and finishes?

Yes, most extension builders in Sidcup 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.