Extension Builders in Sidcup

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4 (20 reviews)

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Some of our top rated extension builders in Sidcup

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Smart windows
Rating: 5 out of 5
Extension Builder in Sidcup
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.
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Latest review:
Windows & Doors (uPVC & Metal)- 13 Mar 2026
Would highly recommend Dean, he removed my window and fitted French doors. Thank you.
PolishPeter.BasementLondonLTD
No reviews yet
Extension Builder in Sidcup
I have more than 20 years of experience in basements and groundwork. All types of garden and patio works ,demolishions, landscaping- ncluding bric and block works . Guaranteed quality - fully insured service.
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Ion
No reviews yet
Extension Builder in Sidcup
.
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THG CONSTRUCTION LTD
No reviews yet
Extension Builder in Sidcup
We are an experienced team of builders who always aim to suit our clients' needs. We have been in construction for 15 years and can guarantee quality performance. We have great experience in variety of building services such as Lofts, Extensions, Basements or simply Refurbishments.
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SKS Construction
Rating: 4.6 out of 5
Extension Builder in Sidcup
We are a well established company with over 15 years experience in construction. We undertake all types of building works. Our team provides a high standard job from start to finish to ensure a quality job every time.We use highly skilled tradesmen that always give 100% in whatever they do. We operate in a polite professional manner with a quick and reliable service.We offer free of charge quotations at reasonable prices.All of our work is fully guaranteed.
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Latest review:
Extensions- 17 Nov 2020
Unfortunately! Mr Sundeep Kandola is not a builder, but a corn artist who claim to be a contractor, he attended to my job, removed the old porch, then dug the ground for preparation, he then asked for a deposit of £500, which I gave him. He bought some materials and on the same day the material was delivered Mr Sundeep handed me the receipt, I refused to collect the receipt, because we have already agreed a set price for the completion of the porch, but he insisted. I then checked the receipt and saw £387.00 in total. I took the receipt and kept it. The next morning I received a text from Mr Sundeep saying that "I am sorry but I am unable to continue your work because my builder has disappointed me". I was shocked and tried calling him, but he would not pick my calls I texted him he replied saying "I am sorry" I tried again calling him, but he would still not pick my calls all day. The next day he sent me a text "if you are willing to add £500 to the total amount we agreed on I will return and complete your porch" I was shocked this was when I realised that Mr Sundeep Kandola is a corn artist, who is trying to put me in a tight Conner and I refused to be pushed. I am still looking for someone, because everyone that come around see a building site, thinks I am the problem all the builders coming around now are hiking the price of building and also asking what happened to the previous builder. PLEASE DO NOT USE THIS MAN HE WOULD DISSAPOINT YOU HE IS CLEARLY NOT A BUILDER.
Highpoint roofing and building contractors
Rating: 5 out of 5
Extension Builder in Sidcup
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
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Latest review:
Roofing (Flat)- 6 Jan 2026
Completed the job as promised and was very tidy in his job
Sly Civil & Rail
No reviews yet
Extension Builder in Sidcup
We are a family run company, with combined 20 years experience in the construction industry. We undertake all aspects of work including smaller items such as decorating or flooring, to larger projects such as extensions, kitchens, and interior alterations.
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ECN CONSTRUCTION SERVICE LIMITED
No reviews yet
Extension Builder in Sidcup
Welcome to ECN Construction Services, where excellence meets innovation in every project. With a steadfast commitment to quality, efficiency, and client satisfaction, we specialize in delivering tailored construction solutions to meet your unique needs. Our experienced team harnesses the latest technologies and industry best practices to ensure every project is executed with precision and delivered on time and within budget. Whether you're embarking on a residential, commercial, or industrial venture, trust ECN Construction Services to bring your vision to life. Let's build together!"
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J Berry (Building)ltd
No reviews yet
Extension Builder in Sidcup
An established small Building company covering NW Kent and the surrounding areas. Over 30 years experience in extensions,loft conversions and all domestic works Free estimates and advice.Insured
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Santo Sons LTD
No reviews yet
Extension Builder in Sidcup
Xyz will update this later on
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LucianCorpaci
No reviews yet
Extension Builder in Sidcup
We renovate, decorate and repurpose buildings to make sure they fully meet your needs. By regularly working with homeowners and landlords, we ensure your property renovation is completed to the high standards you’d expect and is exactly what you need it to be. Having worked in renovations for many years, we understand that it’s not about the amount of work you require. It’s about taking ownership of the space, making it yours and building it up around your requirements and expectations, so you can do exactly what you want with the building. We can redevelop and remodel a space so you can start afresh, or provide a more cosmetic refurb to give your property a new look. Our flexible approach allows us to take on refurbishment projects of all sizes and do every building justice. Regards
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studioTO limited
No reviews yet
Extension Builder in Sidcup
We are here to give you confidence to create a home, that is an intuitive reflection of your personality & your lifestyle. Space, that enhances your wellbeing and helps you perform better. If you want to improve your existing house or build a new one, we are here to guide you. WE HAVE YOUR BACK! We embrace our clients as individuals with unique beliefs, characteristics & aspirations. With our assistance you will have better clarity on what you need, want and what can be achieved.
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B&D Construct Ltd
No reviews yet
Extension Builder in Sidcup
Quality construction services for different building projects. We are a company that recognizes the value of completing projects on schedule and within budget. We strive for maximum quality and customer satisfaction in everything we do. We work to very high standards and can provide anything you want or imagine: new builds, residential and living accommodations, property extensions etc. We are looking forward to collaborate with you!
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ALTROBUILDERS LTD
No reviews yet
Extension Builder in Sidcup
Whether you're looking to build your dream home, renovate a commercial space, or undertake a large-scale construction project, we have the expertise and experience to exceed your expectations. With more than 10 years of experience in the industry, we complete every project professionally, on time and in collaboration with the needs and ideas of property owners
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FDT Construction Services Limited
No reviews yet
Extension Builder in Sidcup
Construction company specialising in home extensions, loft conversions, patios, driveways and other construction services. You name it, we are here to help!
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Master Brickwork London Essex Ltd
No reviews yet
Extension Builder in Sidcup
Master Brickwork undertake repairs, brickwork, patios, driveways, extensions and new builds. We are focused on providing excellent services with the highest levels of customer satisfaction – we will do everything we can to meet your expectations.
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Top rated Extension Builders

Our Extension Builders in Sidcup, are rated 4 out of 5 based on 20 reviews from customers like you.

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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.