Extension Builders in Kings Langley

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.6 (12 reviews)

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Some of our top rated extension builders in Kings Langley

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Potja ltd
Rating: 4.8 out of 5
Extension Builder in Kings Langley
We are a reliable and experienced landscaping and building company, specialising in transforming outdoor spaces and enhancing homes. Our services include patios, driveways, landscaping, and home extensions, all completed to a high standard with attention to detail. We take pride in delivering quality workmanship using durable materials, ensuring every project is built to last. Whether you’re looking to create a new patio, install a driveway, redesign your garden, or extend your home, we work closely with our clients to bring their vision to life. Customer satisfaction is at the heart of everything we do. We are committed to providing honest advice, clear communication, and a professional service from start to finish.
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Latest review:
Fencing- 17 May 2026
Great job on our fences. Really pleased with the finished result. What a transformation. Thank you
B&O Construction Limited
No reviews yet
Extension Builder in Kings Langley
B&O Construction Limited is your go-to team for all things building and renovating. We take on a variety of projects, from single and double-storey extensions to loft conversions, garage conversions, and interior makeovers. No job is too big or small — we love helping homeowners transform their spaces. We’re all about quality work and making the process smooth and hassle-free for you. Whether you want to add extra room, upgrade your loft, or give your interiors a fresh new look, we’re here to help turn your ideas into reality. Get in touch with B&O Construction Limited, let’s build something great together!
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OWA CONSTRUCTION LTD
Rating: 4.9 out of 5
Extension Builder in Kings Langley
We are a medium sized groundwork company based in West London. We have over 18 years groundwork experience. We specialise in Drainage , Basements Reinforced concrete, Foundations, Block and beam , Paving , Fencing Etc . We pride ourselves in our work and customer satisfaction is our top priority.
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Latest review:
Groundwork & Foundations- 7 Feb 2026
Oli carried out the groundworks and demolition at my property and was on site every day with his crew, fully committed and hands-on throughout the job. I am an architect, and this was work on my own home, so my expectations were high. Oli met those expectations fully. He has a strong knowledge of groundworks and demolition, works carefully and methodically, and you can tell he genuinely enjoys what he does and takes real satisfaction in delivering the work exactly as required. He was always in a good mood, easy to communicate with, and a pleasure to have on site. I enjoyed discussing the project and hearing about other jobs he has completed over his 23 years of experience, which clearly shows in the quality of his work. I would highly recommend Oli for any groundworks or demolition works.
Carol Duarte Cleaning Company
New on MyBuilder
Extension Builder in Kings Langley
After builders cleaning Deep clean End of tenancy
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96 Degrees Carpentry Ltd
Rating: 5 out of 5
Extension Builder in Kings Langley
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.
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Latest review:
Decking- 23 May 2021
Excellent and professional job completed as quoted. Would highly recommend to future Clients.
A&L Refurbishment UK
No reviews yet
Extension Builder in Kings Langley
Welcome to A&L Refurbishment UK! We specialize in transforming homes across Buckinghamshire, Hertfordshire, and London. From full refurbishments and renovations to extensions and conversions, our team brings your vision to life with quality craftsmanship and attention to detail. Whether you're looking to modernize your space or create more room for your family, A&L Refurbishment UK is here to make your dream home a reality.
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Scarlet developments limited
No reviews yet
Extension Builder in Kings Langley
Hello we are Scarlet Developments, we are a small family run electrical and construction company situated in Watford / Hemel Hempstead that has been established for 10 years.
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Athwal Constructions Ltd
Rating: 5 out of 5
Extension Builder in Kings Langley
Hi its jaswinder Singh. working as a soletrader since 2013 i have been working in this trade since 2003 i have done loft conversions , rear and side double extentions , full house renovations etc.20 years of experience in this trade.
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Latest review:
Athwal we’re fantastic in their work for us - reliable, very high standard of workmanship, on budget, efficient, courteous.
Florin Pascu
Rating: 5 out of 5
Extension Builder in Kings Langley
Hello, I'm florin and welcome to my profile! I've been working in construction and building for the past 15 years, and have made all my customers happy, completing work to a high standard very efficiently. I'm available to talk anytime if you are interested to take a hard working person like me. Don't hesitate to contact!
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Latest review:
Plastering- 9 Jul 2026
Florin is an experienced professional who is multi skilled with range of different materials and trades. He is very trustworthy and was tidy and organised throughout. He had good communication and was committed to the project and finishing on time. Like all projects unexpecting things crop up however he worked with us to finish at a very high standard. We love our new warm house and cant thank Florin enough. I have had issues with builders in the past but this project was a dream. He listened to our requirements and used quality products, no corners were cut. 5 stars!
BUILD ON TIME LTD
Rating: 4.9 out of 5
Extension Builder in Kings Langley
BuildOnTime LTD is a family business and one of the fastest growing building companies in London.We have over 20 years of experience in all types of building and construction works.Our team is structured from highly qualified, friendly and ambitious workers.We are your builders in North London.
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Latest review:
Extensions- 30 Aug 2024
We recently used Build on Time Ltd to build a ground floor extension and remove chimney breasts from 4 rooms on a home renovation project. Paul and his team delivered within budget and ahead of time. This did not compromise their attention to detail or care taken with their work. All were extremely hard working and committed to getting as much out of each day as possible. They were reliable, trustworthy and a pleasure to be around. We would definitely recommend!
C&A CONSTRACTION UK LTD
No reviews yet
Extension Builder in Kings Langley
C&A Construction UK Ltd carry out a wide range of works including building, refurbishment, extensions, loft conversions, painting, plastering, tiling, flooring, kitchens and bathrooms. Our team have over 20 years of experience in construction. and the quality of work should never be compromised. We work closely with our clients to establish their requirements, yet offer our suggestions and advice to achieve the best result. We value our work and reputation and will work within a reasonable client budget. We are reliable, flexible and dedicated to the work we undertake and pride ourselves on work that is completed to perfection. Our work is carried out by trained tradesmen and is fully insured.
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Zeenish construction limited
Rating: 5 out of 5
Extension Builder in Kings Langley
Welcome to Zeenish Construction Limited , With over 30 years experience in the construction industry. No job too small electric plumbing and general building works undertaken and specialise in handyman services
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Latest review:
Plumbing- 17 Aug 2013
Excellent job, very good value for money and very quick and efficient fitter. I am very pleased with the work and highly recommend this tradesman.
M Lomas Construction
Rating: 4.8 out of 5
Extension Builder in Kings Langley
My name is Mark Lomas and am a building contractor who specialises in extensions and refurbs, down to the smaller projects. I have a team of tradesman who cover every aspect of the building industry who I have worked with for many years who are professional and always leave a high quality finish.
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Latest review:
Extensions- 1 Feb 2023
We are in the last week or so of the extensive remodelling of the kitchen, utility room beyond plus bedroom upstairs. Mark Lomas and his team have been truly amazing, not just in exercising real building skills to blend the extension harmoniously with the existing Edwardian home but also in some imaginative problem solving as well. Costs have been spot on budget, save where I have caused additional work and fitting out, other than some unusual costs arising from some specialist joinery work which enabled the timber windows and doors to be exact replicas for others built 120 years ago. Honestly, I could not speak higher of the care and attention we have been given. I could get cross about the driving rain and the gruesome frosts and miserable cold, but that's a British Winter for you; Mark and his team certainly did not grizzle, and have stayed professional throughout. Circa £100k budget, so a reasonably size job and quite a risk for the builder - for my next project, I shall certainly use again in a heartbeat.
All construction limited
No reviews yet
Extension Builder in Kings Langley
Extensions , complete refurbs, design and build , new build houses, commercial interiors. Windows and doors replacement Project management 40 years experience in management and trade building Fully insured public liability £7million We generally work using JCT contracts underwritten by the Royal institute of Chartered Surveyors ( RICS )
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Hubble Property Ltd
Rating: 5 out of 5
Extension Builder in Kings Langley
We are a trusted landscaping and construction company dedicated to transforming spaces with innovative ideas while honouring traditional craftsmanship. As a proud holder of a Trust Mark ( government endorsed Contruction quality standards ) & member of Federation of Master Builders, we ensure that our projects meet the highest standards of quality and reliability. Our Mission: We aim to create contemporary, functional environments by merging cutting-edge techniques with time-honoured values. Our team of skilled professionals is committed to delivering exceptional results that reflect our clients' vision, whether through stunning landscapes or durable construction projects. What We Offer: Innovative Designs: Utilising the latest technology and creative solutions to bring your ideas to life. Quality Craftsmanship: Maintaining traditional building values to ensure lasting durability and aesthetic appeal. Client-Centric Approach: Working closely with you throughout the process to ensure your complete satisfaction. Let us help you build and nurture the spaces you love!
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Latest review:
Extensions- 6 Oct 2022
I was lucky enough to have Haroun on this project of side extension and outside building. He is such a professional guy and always committed to do his work up to the standard. He has been very nice to us and always responded whenever asked to do additional jobs. He is very honest and trustworthy and his team has been very wonderful. I'm very happy with work he did in the house and would hire him again should the necessity arise in future.
A&A BUILDING SERVICES LTD
Rating: 5 out of 5
Extension Builder in Kings Langley
A&A Building Services Ltd provide high-quality construction, refurbishment and general building services across North and West London. With all major trades under one roof, we deliver seamless project management from start to finish - saving clients time, hassle and additional contractor costs. While we cover all aspects of building work, we are specialists in bathroom renovations and premium residential refurbishments. Our team combines 20+ years of hands-on industry experience with modern standards of workmanship, communication and care. Built on quality, dedication and trust, we take pride in delivering projects that are finished to a high standard, on time and with transparency throughout. We work with homeowners, landlords and commercial clients, offering both planned works and emergency call-outs. Why choose us: -All general building trades covered -Bathroom renovation specialists -20+ years combined expertise -NIC EIC & Gas Safe contractors -Fully insured (Public Liability £5 million) -Free quotes for small projects / estimates, paid surveys for larger works -Warranties & guarantees provided -Emergency and out-of-hours service available Whether you’re refreshing a single room, renovating your home or planning a larger refurbishment, A&A Building Services Ltd deliver results you can rely on. Contact us today for your free quotation.
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Latest review:
Tiling- 17 Feb 2026
wonderful job! hired afterwards for additional building service, fitted a whole bathrooms with tiling and a complete installation of sound proofing, floor insulating etc for a bedroom all of a high quality. great team to work with

3.6

Top rated Extension Builders

Our Extension Builders in Kings Langley, are rated 3.6 out of 5 based on 12 reviews from customers like you.

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

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 Kings Langley 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 Kings Langley who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Kings Langley?

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

Find extension builders in Kings Langley with MyBuilder

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

Step 2: Compare different extension builders in Kings Langley

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

Step 3: Hire Kings Langley extension builders with confidence

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

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

What to ask a Kings Langley extension builder before hiring?

Before hiring an extension builder in Kings Langley or extension building company in Kings Langley, 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 Kings Langley?

An extension builder in Kings Langley 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 Kings Langley 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 Kings Langley?

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 Kings Langley 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 Kings Langley 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 Kings Langley

Can an extension builder in Kings Langley help with planning permission?

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

Many Kings Langley 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 Kings Langley help with materials and finishes?

Yes, most extension builders in Kings Langley 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.