Extension Builders in Kings Cross

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (18 reviews)

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Some of our top rated extension builders in Kings Cross

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Ss digging & building development limited
Rating: 4 out of 5
Extension Builder in Kings Cross
I’m a General construction builder ,I have 15 years experience to undertake Ground work ,New extension ,loft conversion ,summerhouses and all type of related construction work .
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Latest review:
Extensions- 22 May 2021
I was left in a mess by cowboy builders. I found Sukhvindsr Singh from mybuilders and then I had nothing to worry about. He completed the project with utmost responsibility from erecting heavy steals to all the way up to finish. I was amazed with the level of his skills and above all honesty. This was a massive 66sqm single storey extension and he put up structure, brickwork, fibreglass roof , underfloor heating , tiling,electric work . He even went beyond our agreement to do bits and pieces to make sure i donot get stressed out. I have given him another job in same property to do patio 88Sqm with porceline tiling. Feature wall prepared by him stood out . Highly recommended and i will be surprised if he does recieve similar feedback in his future jobs.
Aman constructions Ltd
Rating: 5 out of 5
Extension Builder in Kings Cross
Hi My name is Aman we undertake all kind of construction work including refurbishment, extensions, loft conversion and new build
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Latest review:
Extensions- 14 Feb 2025
Kamal, was fantastic start to finish. Fair pricing. They were quick and but no corners where cut. Superb performance and communication. I will be using Aman Construction for all my building needs going forward and recommend you do too. I would give them 10 out of 10
KAMIL THE BUILDER LTD
Rating: 5 out of 5
Extension Builder in Kings Cross
I have a 20 years of experience as a builder. I take my work very seriously. High quality Service at a sensible price! - gas and heating services -plumbing services-bathroom and kitchen refurbishment-interior and exterior renovations and lots of more...
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Latest review:
Bathroom Fitting- 23 Jan 2023
Really excellent work from Kamil and his team. Beautiful quality en-suite bathroom installation completed on time and to the quote. Clean, tidy and great communication including during the job as things progressed. Already recommended to my in-laws and looking forward to having future bathrooms done by Kamil. Expert and knowledgeable. Easy to get on with and a pleasure to have in the house.
Help in Hand Builders
Rating: 5 out of 5
Extension Builder in Kings Cross
DORKING based Builders. Extensions. Refurbs. Bathrooms & Kitchens. Structural steel work. Design + Build + Renovate. Restoration & Refurb Specialist working in SURREY.
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Latest review:
Extensions- 5 Dec 2017
Wow! What can I say about Ian and his team, he came in on time, on budget and carried out the work to a fantastic standard. His friendly and positive nature made him a pleasure to have in our home . I’d reccomend him ( and already have) to friends and family. Thanks again and have a great Xmas .
LHR Construction ltd
No reviews yet
Extension Builder in Kings Cross
I have been a builder for 40yrs and can carry out all types of building work, from small jobs to large extensions, I am currently refurbishing my own house in Rainham Essex. I have completely landscaped the property also adding a large extension and new roof, no job is to-big or to small.
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DB ELECTRICAL EXPERTS
Rating: 4.8 out of 5
Extension Builder in Kings Cross
At DB ELECTRICAL EXPERTS, we specialize in top-tier electrical solutions for both homes and businesses. Our projects, including new circuits, rewiring, and repairs, strictly adhere to the highest British Standards. Enjoy a free pre-work inspection via video call for transparent assessments. Choose DB ELECTRICAL EXPERTS for expert, compliant, and innovative electrical services. Excellence awaits your property.
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Latest review:
Electrical- 27 Jun 2026
Happy with the work that was carried out.
Tung Developers ltd
No reviews yet
Extension Builder in Kings Cross
Hi, I'm Malkit Singh – a professional bathroom fitter and general builder with over 5 years of hands-on experience transforming homes across the UK. Whether you’re dreaming of a sleek, modern bathroom or need reliable building work done with precision and care, I’m here to help make it happen. If you're looking for a reliable, friendly, and skilled tradesman who gets the job done right the first time – get in touch. I’d be happy to provide a free quote and chat through your plans.
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GURPREET SINGH
No reviews yet
Extension Builder in Kings Cross
Professional bathroom tiling. Laminate flooring. Bathroom installation and second fix. Other diy plumbing and small extension jobs.
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Martini builders
No reviews yet
Extension Builder in Kings Cross
My is Aaron Martini been in building game for thirty years learned great deal ..I love bricklaying ,extension ,garden walls ,patio, pointing ...always give 100 percent to every thing I do
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LBS LANGTON LTD
Rating: 5 out of 5
Extension Builder in Kings Cross
WE ARE A BUILDING, GROUNDWORKS AND DEMOLITION SPECIALIST COMPANY WITH 28 YEARS IN THE INDUSTRY. WE PRIDE OURSELVES ON DOING THE JOB PROPERLY AND ON TIME WORKING WITH CLIENTS TO GET THE VERY BEST RESULTS
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Latest review:
Groundwork & Foundations- 25 Jul 2025
Ralph and his team did a fantastic job making a concrete base for a summer house He was reliable, charming and did a few extra jobs while he was here ! Ralph,Charlie, Roy and Captain were a pleasure to meet and we recommend this company wholeheartedly
Nomarice
No reviews yet
Extension Builder in Kings Cross
Hi, I’m Moh’d – a reliable, detail-driven construction worker, wall painter, and handyman. While I’m a registered nurse by profession, I’ve built strong hands-on experience and high proficiency in property maintenance through years of part-time work. Whether it’s transforming gardens, refreshing interiors with a clean paint finish, or handling general repairs, I bring the same care and precision to your home as I do in my clinical work. I’m friendly, punctual, and always make sure the job is done right – with quality, safety, and cleanliness as top priorities. Get in touch for a free quote or to chat about your next project!
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HandyPro services
No reviews yet
Extension Builder in Kings Cross
We provide reliable, high-quality services with a strong focus on customer satisfaction. Every job is completed with care, attention to detail, and clear communication. Our goal is to make the process simple, stress-free, and deliver results you can trust every time.
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JS Construction & Property Maintenance Ltd
Rating: 5 out of 5
Extension Builder in Kings Cross
We have over 20 years of experience in the building, construction and property maintenance industry. Whatever your building needs maybe, we can provide support starting from initial consultation, drafting your plan, finalising budgets, designing, building and aftercare support.It’s all about headache-free work .References are available on request .we would always invite you to visit a property we have or are working on so you can view our workmanship. We have excellent reviews on Check a Trade .
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Latest review:
Extensions- 13 Apr 2023
Jas and his team were fantastic and completed the initial build in a wonderful timeframe. Highly recommend Jas.
NKA BUILDERS LTD
No reviews yet
Extension Builder in Kings Cross
We are a company with experience and providing services with best quality and also providing warranty to the work that we build and we have liability insurance covering millions. Our services Paint and decorating Drylining Studs work plaster boarding Insulating Bathroom renovation 3d ceiling plus any other ceiling Flooring and flooring heating Tailing And much more Happy to help to anyone who is interested in our services
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NextGen Constructions Group Limited
No reviews yet
Extension Builder in Kings Cross
This is NextGen Constructions Group Limited, we provide effective and efficient work to our clients, we have 13 years of building work experience, we also provide many services like extensions, new build, garage, loft conversion, etc.
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Rimi Construction LTD
No reviews yet
Extension Builder in Kings Cross
Been on this game for more than 1 decade , We have done lots of underpinning , fundation , ground work , waterproofing , fireproofing , shuttering , Joyner’s , carpenter,etc etc - we also have done few new builds , as private house's and hotel’s , May extension / roofing and loft’s . We are a qualyti company which we cost the time that requeste to make sure we got the finish that requested . We work with patience and safe ,
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4.1

Top rated Extension Builders

Our Extension Builders in Kings Cross, are rated 4.1 out of 5 based on 18 reviews from customers like you.

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

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

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

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

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

Find extension builders in Kings Cross with MyBuilder

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

Step 2: Compare different extension builders in Kings Cross

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

Step 3: Hire Kings Cross extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Kings Cross, 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 Cross extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Kings Cross extension builder before hiring?

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

An extension builder in Kings Cross 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 Cross 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 Cross?

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 Cross 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 Cross 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 Cross

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

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

Many Kings Cross 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 Cross help with materials and finishes?

Yes, most extension builders in Kings Cross 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.