Extension Builders in Orpington

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.8 (17 reviews)

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Some of our top rated extension builders in Orpington

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Hankin's Homes Ltd
Rating: 5 out of 5
Extension Builder in Orpington
Hankins Homes has the expertise to get your leaks fixed in a timely manner. With 12+ years of experience, our services include finding & fixing leaks in hidden & out of reach locations. We have the experience, expertise & specialist equipment to complete your leak detection successfully. We will provide clients with a leak detection report & photographic evidence to indicate the cause of leak. Hankins Homes can also repair the damage & complete the entire job to get your property back to normal.
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Latest review:
Initially used Stephen to fix a water leak. Not only did he find and fix the fault, he changed the pipes and repaired the ceiling (we have several unsuccessful visits from British Gas’ homecare service). We then had another water pressure leak which he fixed with minimum damage to the ceiling. He also recently installed our Wren kitchen and did a good installation, identifying missing pieces and doing workarounds when needed. Kitchen looks great. He was easy to contact and as always willing to tweak items that I felt could cause a future problem.
Milano Projects
Rating: 5 out of 5
Extension Builder in Orpington
Milanos Projects: Trusted family-run business. No job is too big or small.Exceptional craftsmanship. Personalised service. Your satisfaction is our priority.
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Latest review:
This is a group of professionals who really over-delivered on our needs/ideas installing a new kitchen and bathroom this year. They were quick to advise us on better options and alternatives and are clearly experienced in what they do - completing our work ahead of time and on budget.
Mj constructions
Rating: 5 out of 5
Extension Builder in Orpington
Hi, I'm Abdul Majid, an experienced plastering, renovations, and construction expert with over 18 years of expertise. At Plaster House Ltd, we pride ourselves on exceeding client expectations through our commitment to delivering high-quality results and exceptional service. I offer free quotation with a visit. I provide written quotation with a break down of all the expenses so you know exactly what you are paying for. I look forward to providing my service to you.
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Latest review:
Plastering- 4 Feb 2019
MJ was great and has lots of experience. He got the job done in no time and was very clean and tidy whilst doing it. His prices were also fair compared to other quotes, and he knows what he is doing. We have more work to do, and will definitely call him back!
Bwt construction south east ltd
Rating: 5 out of 5
Extension Builder in Orpington
Small family business that’s does all aspects of work from new builds to kitchen refurbishments. We have a wide range of completed project with great feed back from satisfied customers.
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Latest review:
Extensions- 12 Feb 2022
A saviour? thorough Gentleman , brilliant and professional workmanship, absolute paitanice, very transparent. Family was conned by a cow boy builder. Matthew BWT Construction put it right. It was one of those jobs where everything he touched was a mess. He worked it all out , saved us from living hell. I would recommend Matthew, BWT Construction without any hesitation.
Frontline Construction Contractors Ltd
Rating: 5 out of 5
Extension Builder in Orpington
Frontline Construction is a well established company based in Bromley. We specialise in full Bathroom, Wet Room and Kitchen renovations as well as extensive building work. At Frontline Construction we can help you transform your home. We have an extensive team of experienced and friendly professionals who are always on hand to help and assist you with your renovation project. We are members of the Federation of Master Builders and are also endorsed by Trustmark, a Government Run Scheme. Our work Is regularly inspected and our work is always marked as exceptional.
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Latest review:
Conversions - General- 11 Apr 2026
We went through a number of iterations, guided ably by Toby before embarking on the work. We are very happy with the final results. The team who completed the job were excellent and a pleasure to have around. Very committed and professional.
RS Construction and Landscapes Ltd
Rating: 5 out of 5
Extension Builder in Orpington
RS Construction and Landscapes Ltd has a proven track record of delivering both extensions and landscape works both on time and in budget. Our dedication to craftsmanship and customer satisfaction sets us well above the average builder. With over 20 years experience in the industry we have built a solid reputation for delivery exceptional construction and landscape services . Our team of fully qualified and dedicated professionals combined expertise with creativity to transform your ideas into reality, ensuring every project is completed to the highest standard
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Latest review:
Had work carried out by RS construction recently, was an overall pleasant and stress-free experience, had a dormant chimney breast removed all the way through my property. Which had to be removed due to constant leaks and repairs by previous roofers. Ross was very helpful and knowledgeable throughout the project and his team kept my house and garden very clean considering the work that was undertaken, it has not only freed space within my property but given me peace of mind concerning continuous leaks, which have caused numerous issues over the years. Can't recommend this company anymore , from sale to completion a very professional and helpful service
NB Brickwork and Construction LTD
Rating: 4 out of 5
Extension Builder in Orpington
All your bricklaying and construction needs taken care of in one place
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Latest review:
Bricklaying- 25 Mar 2018
I instructed the level of the walls and gable to be built up to. The brickwork was covered in hessian and I paid him after he said that it was all done. After he departed, I looked under the hessian and the gable was not built up to apex. One area was not built up where it needed only a couple of courses and the other bricked up wall was left lower than I had stated. I phoned Nick and he sent his brother to finish the job next day. The 2 sides of the gable are still at different angles and the brick work is still lower than I had asked for on the other walls. This was not a big job. Only needed a few courses of brick work to level off as the building has been derelict for a few years. My view was that no one will risk a negative review and that is why I paid him. Unfortunately I was let down at a critical moment as the pitch roof chippy was following the bricklayer on this job. Very sad as he could have been engaged on other brickwork on this building.
Lux Contracts Ltd
Rating: 4.9 out of 5
Extension Builder in Orpington
LUX contracts are a friendly,family run building contractor. We carry out all types of construction projects; refurbishments, kitchen and bathroom installations, conversions, extensions and electrical projects.Our team of tradesmen have many years of experience. We have completed numerous projects working closely with clients to ensure we understand and deliver a very high standard, meeting the clients requirements and expectations .
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Latest review:
Extensions- 22 Apr 2019
Richard and his team have always been very hard working, respectful and professional throughout the project. We have had an extension, utility and bathroom/toilet renovation and we are very happy with the quality of work. It has transformed our home into a beautiful living space. Richard was very helpful when giving advice on materials we were choosing. The team were very accommodating to our needs, easy to work with and always tidied up after themselves. The payment schedule made it easy to keep on top of the budget and pay for any optional extras along the way. The building work was completed within the set timescale and to a high standard. We would highly recommend Lux for any building/renovation work.
RS Homes
Rating: 5 out of 5
Extension Builder in Orpington
We offer an affordable and competitive service locally for: Landscaping, Gardening & Garden Maintenance, Decking, Restoration & Refurbishment, Extensions, Conversions - General, Loft Conversions. With over 15 years experience in the construction and landscaping industry you can rely on us to provide a professional, punctual and trustworthy service. No obligation quotations provided upon request.
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Latest review:
Landscaping- 3 Jun 2021
On our first meeting I felt comfortable and was glad of input from Robin. Agreed to a plan and only had to wait a few weeks before work could start. All preparations made to protect my drive before skip arrived. All work carried out in a very professional manner and team were very polite and friendly. Even though weather was against ground works they provided shelter so work could continue. I’ve been very pleased with their approach and can’t fault the outcome. Although met with a couple of delays on garden furniture, (nothing to do with Robin and his team, circumstances outside control)all other aspects of this job have met with my approval. Was apprehensive of having people in but can honestly say there have not been any issues and when the skip was removed within an hour, Robin was back on site to clear and wash down the drive. So looking as good as new. It’s been a pleasure having them on my property and will look at using their services again in the future should the need arise. Nothing too much bother. So my thanks to them all.
JJE (Kent) Limited
Rating: 5 out of 5
Extension Builder in Orpington
I have been undertaking building works for 18 years, and am qualified at college and university. I qualified as a surveyor and have been a surveyor for local authority. I now mainly undertake structural and heavy building works including wall removals, structural refurbishments,underpinning, steel installations and extension additions.
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Latest review:
Handyman- 14 Nov 2023
Martin is over qualified for a handy man role, being a Quantity surveyor but he expressed to me the satisfaction he gets from doing DIY jobs for people. His work is seamless and precise. He completed all the jobs given in quick time, with minimal stress and mess for me. I would 💯% recommend JJ Structural Jacqueline Davis
Master Build Carpentry Ltd
Rating: 3.7 out of 5
Extension Builder in Orpington
N/a
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Latest review:
Carpentry- 7 Sep 2021
The cladding was due to start yesterday, Monday 6th of September. In the weekend, I was told they would come do a site visit on Monday instead of starting the job. They came on site yesterday morning and nothing was said about any issues. They said they would start the next day, Tuesday. I got a call at the end of the afternoon (around 5 pm) yesterday to be told suddenly that there are many problems; not levelled portions of frame (which can be easily rectified), no toilet on site (which they knew about - they knew also that the public toilet is only 50 m away), access problems which they also knew about ect... Suddenly a multitude of problems arised! They wanted more money. It is very obvious that they found another job somewhere. I would classify this sort of behaviour simply as not honest. Also expensive- I was quoted £4000 to clad a tiny first-floor(38 m2) . The overall cladding would be 75 m2 in total. Disappointing.
DKM BRICKWORK LIMITED
Rating: 5 out of 5
Extension Builder in Orpington
Here at DKM Brickwork we’re proud of our work and with over 18 years bricklaying experience we always deliver an exceptionally high standard of craftsmanship and customer satisfaction, So Whether its a garden wall, patio or complete new build DKM Brickwork are here for all your brickwork needs. We are a family business and our reputation is your assurance of quality.
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Latest review:
Bricklaying- 25 Feb 2020
Terry did a good job, worked hard on the day and cleared everything up afterwards. I would use him again
B&B Double Glaziers LTD
Rating: 5 out of 5
Extension Builder in Orpington
We are a family run business and we pride ourselves in providing friendly and professional fitters. We specialize in double glazing, providing energy-rated windows and doors to help you save money on your energy bills. Our team of experienced professionals has been providing reliable double glazing services for over 10 years. We pride ourselves on providing the highest quality products so that you can be sure you’re getting the best value for your money.
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Latest review:
Windows & Doors (uPVC & Metal)- 10 Jul 2024
Their quote was the most reasonable, he helped me with ordering what was needed and I'm happy with the quality of the installation. The composite door is a huge improvement on the previous wood door. He also replaced a cracked window and again his was the best quote. I'd recommend them.
EAA il projects Ltd
Rating: 5 out of 5
Extension Builder in Orpington
Expert Builders in South East London – Specialists in All Trades Looking for reliable, high-quality construction services in South East London? We are expert builders specializing in all aspects of construction, from groundwork to roofing and everything in between. With years of experience, we deliver top-tier craftsmanship across residential and commercial projects, whether it’s a full-scale renovation, a bespoke extension, or a complete new build. Our skilled team covers all trades, including: ✔ Brickwork & Structural Work ✔ Carpentry & Joinery ✔ Plumbing & Electrical Installations ✔ Plastering & Rendering ✔ Roofing & Loft Conversions ✔ Kitchens, Bathrooms & Tiling ✔ Painting, Decorating & Finishing Touches We take pride in our attention to detail, excellent customer service, and commitment to delivering projects on time and within budget. Whether you need a small home improvement or a large-scale development, we bring expertise, reliability, and a high-quality finish to every job. Contact us today for a free consultation and let’s bring your vision to life!
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Latest review:
Michaels team fully renovated my kitchen, from installing underfloor heating, tiling the floor, electrics, fitting new cabinets, integrating kitchen appliances and everything between. Impressed with their work, I also asked them to build a bespoke shelving unit with hidden storage to my living room. Additionally, they sanded my old pinewood floor and stairs. Their communication was great throughout the project. Everything was completed on time, to a high standard and without any hidden costs. I would hire them again without hesitation.
Building Ideas
Rating: 5 out of 5
Extension Builder in Orpington
With over 30yrs construction experience, I can offer a friendly, bespoke Architectural design service. Offering creative solutions from initial drawings to planning ,full working drawings and structural engineering calculations. I have been working between architectural design services and high end residential project management projects so believe I can bring value ,creativity and ultimately a strong understanding of what is required to deliver a project.
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Latest review:
Architecture- 20 Nov 2016
This is the first time we are carrying out an extension work at our property. Sean worked with us from a very early stage, prepared the drawings, coordinated with the council and ensured that we received the building approval on time. He was always available to advice us (when requested) on design challenges, choosing installers and material choices which we found very helpful. We are very happy with his work and thoroughly recommend him.
N M W BUILDING SERVICES LTD
Rating: 5 out of 5
Extension Builder in Orpington
NMW Building Services provides a high quality service with only the aim for great customer satisfaction. We are a small but highly reputable company; skilled and qualified in all aspects of building work. We always respect clients wishes and work hard with them to achieve their desired results.
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Latest review:
Extensions- 20 Jun 2025
Neil is simply brilliant; a great communicator, honestly priced and great at his job. We have been so pleased with our extension and would not hesitate in recommending Neil to anyone who is unsure who to trust.

3.8

Top rated Extension Builders

Our Extension Builders in Orpington, are rated 3.8 out of 5 based on 17 reviews from customers like you.

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What types of services are offered by local extension builders in Orpington?

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

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

What are the hourly rates of extension builders in Orpington?

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

Find extension builders in Orpington with MyBuilder

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

Step 2: Compare different extension builders in Orpington

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

Step 3: Hire Orpington extension builders with confidence

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

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

What to ask a Orpington extension builder before hiring?

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

An extension builder in Orpington 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 Orpington 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 Orpington?

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 Orpington 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 Orpington 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 Orpington

Can an extension builder in Orpington help with planning permission?

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

Many Orpington 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 Orpington help with materials and finishes?

Yes, most extension builders in Orpington 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.