Extension builders in Waltham Cross

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.6 (17 reviews)

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

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 Waltham Cross

2593 Results

Sort by:

Maxcontractorsint.LTD
Rating: 5 out of 5
Extension Builder in Waltham Cross
At MaxContractors , we pride ourselves in providing our customers with quality construction services that are tailored to their needs. Our team is highly experienced in the industry and have a great deal of knowledge when it comes to building and renovation. We pay attention to detail and are always willing to go the extra mile to ensure that the job is done to the highest standard. Over the past many years our company has thrived within the domestic as well as commercial building industry. With vast amounts of staff specialising in all areas of the trade, our tradesmen/women boast skill and determination many could only wish of. Having completed thousands of projects, putting smiles on countless of faces we aim to deliver the highest of standards in all aspects of the works and services. Providing quality and great time management throughout each step of this journey. We stand strong beside our clients providing a helping hand so ideas become reality, all while with a peace of mind you kick back and watch your future grow. maxcontractorsint. com
Get in touch
Latest review:
We recently completed a first and second floor renovation alongside an 5x6m extension of our 1930s property with Maxcontractorsint.ltd , and we couldn’t be happier with the results. From start to finish, they have been absolutely fantastic. The attention to detail and the quality of workmanship throughout the project has been exceptional. Matt and his team are incredible, they worked efficiently, kept work on track, and made sure we were updated and involved at every stage. Their skills, ideas, and collaborative approach truly brought the whole project together. Communication throughout the project was good, and the team provided great pre and post project support. Matt was very detail-oriented, offered inspiration during site visits, and was supportive of our requests along the way. We’re so happy with the end result and would absolutely recommend Maxcontractorsint.ltd for any project.
Appexconstruct
No reviews yet
Extension Builder in Waltham Cross
We deliver quality construction with precision, safety, and reliability. We create residential, commercial, and industrial projects that stand the test of time. In our team we value innovation, sustainability, and client satisfaction—building not just structures, but lasting partnerships.
Get in touch
V3 Capital construction ltd
No reviews yet
Extension Builder in Waltham Cross
We specialize in providing high-quality repair and renovation services for domestic houses across the UK.
Get in touch
S R Deane Building Services
Rating: 5 out of 5
Extension Builder in Waltham Cross
S R Deane Building Services Expert craftsmanship. Honest service. Beautiful results. At S R Deane Building Services, we believe your home deserves our full attention, which is why we take on one project at a time. As a small, family run business, we bring skill, care and clear communication to every stage of your build. From extensions, kitchen transformations, and bathroom makeovers to landscaping, we deliver quality workmanship with a personal touch. Our goal is simple: to make your vision a reality, with results that last and a process that is stress free. With S R Deane, you are never just another job. Your project is our only priority.
Get in touch
Latest review:
Kitchen Fitting- 8 Oct 2018
Had three quotes to fit new Wrens kitchen,and picked Stanley even though his quote was not the cheapest.He just seemed a nice guy,and he is.The work was carried out quickly and cleanly,arriving about 08.15 finishing about 17.00.A few minor things need to be carried out mainly due to wrens not delivering all trim but have been told will return as soon as it arrives. I would not hesitate to use Stanley again.Will update when complete.
Gabriel Slavik
No reviews yet
Extension Builder in Waltham Cross
I’m doing building work for last last 23 years. I always try to do precise work, I am happy to help and advise the customer.
Get in touch
Primefix uk
Rating: 3 out of 5
Extension Builder in Waltham Cross
PRIMEFIX Contractors LTD Reliable. Fast. Professional. At PRIMEFIX Contractors LTD, we help homeowners, landlords, and letting agents keep their properties in perfect condition — without delays, stress, or hidden costs. We understand how important it is to get jobs done quickly and properly the first time, especially when dealing with tenants or ongoing property maintenance. That’s why we focus on fast response, clear communication, and high-quality workmanship. Our Services: Emergency call-outs Handyman services Painting & decorating Plumbing Electrical works Door installation & repairs Kitchen fitting Bathroom refurbishment Full property renovation What You Get With Us: ✔ Fast and reliable service ✔ Fully insured professionals ✔ Clean and tidy workmanship ✔ Honest, transparent pricing ✔ Flexible availability (including urgent jobs) ✔ Trusted by landlords and letting agents We don’t just complete jobs — we build long-term relationships with our clients by delivering consistent quality and dependable service. Whether you need a quick repair or a full refurbishment, PRIMEFIX Contractors LTD is ready to take care of it.
Get in touch
Latest review:
Kitchen Fitting- 22 Oct 2026
After suffering drainage damage, Primefix replaced the ruined carcass, installed a new worktop and fitted a new sink flawlessly. The team was professional, punctual and transparent about the timeline and costs. They worked efficiently and left everything spotless. Highly recommended!
Star building and construction ltd
Rating: 5 out of 5
Extension Builder in Waltham Cross
We have wide range of tradesmen available to carry out all different kind of jobs from Installing floors, building an extension, loft conversions, new builds and house renovations. We are dedicated to ensure that all our work meets the standards of our clients, hence why all our tradesmen are handpicked for each job. We thank you in advance for your consideration and welcome you to look through our portfolio. You
Get in touch
Latest review:
New extension, kitchen, shower room, flooring, fiber glass roof, roof light, new electrics, plumbing, boiler installation, removal of chimney, rear patio, soakaway, painting and decorating Satnam has exceeded our expectations in carrying out the complete job to our satisfaction within the agreed time to a very high standard. We are extremely pleased with his work. Satnam helped us select good quality products from suppliers for much less cost than if we were to source them ourselves. He was honest, courteous, professional, flexible, open to changes and made suggestions to improve the overall look. He even passed on his builders' discounts to us. We highly recommend this ambitious young builder who has excelled in the trade. We wish Satnam and his team the very best.
SOLI CONSTRUCTIONS
No reviews yet
Extension Builder in Waltham Cross
As a Construction & Consultancy Firm with over 24 years of work experience in building industry, We offer a wide range of services to our clients including: -All Types of Extensions -Loft Conversions -Flat Conversions -New Builds -Tanking and Damp-proofing -Wall and Chimney Removals -Steel Beam/Frame Installations -Structural Repair and Retrofitting -Renovation and Refurbishment -Planning Application Drawings and Submissions -Structural Calculations -Building Specifications Documents
Get in touch
Bogdan Chitoiu
No reviews yet
Extension Builder in Waltham Cross
Our client our master
Get in touch
Elite Renovations
Rating: 5 out of 5
Extension Builder in Waltham Cross
We are a well experienced team of tradesmen from bricklayers to plasterers and roofers. We undertake works in all areas of the building industry and pride ourselves on our professionalism, work ethic and customer service. All of our contracts are bespoke to the customers needs and requirements with no upfront payments, we will build 50% of your project before any payment is made.
Get in touch
Latest review:
I had a new boundary wall built. I am very pleased with the professionalism and politeness of the tradesman. The wall looks great and I am very happy. Thank you
Cosybuild ltd
No reviews yet
Extension Builder in Waltham Cross
Cosy Build is a new chapter in our journey, rebranding after over 10 years of trusted building and construction expertise across Harpenden, Radlett, Hertfordshire, North London, and surrounding areas. Based in Hertfordshire, our professional, reliable tradesmen serve St Albans, Harpenden, Radlett, North London, and nearby regions, delivering high-quality building services with a commitment to excellence. Formerly known as Luan Ajazi Home Improvements. Cosy Build is a family-run, customer-focused building company with deep roots in the Hertfordshire and North London construction industry. Our team consist of: Highly skilled craftsmen with decades of combined experience. Fully insured and certified professionals for your peace of mind. Local experts who understand the architectural styles and regulations of the area. What We Do & What We Care About Cosy Build is a family-run, customer-focused building company with deep roots in the Hertfordshire and North London construction industry. We specialise in: Loft conversions – Maximising your home's space and value. Loft conversions – Maximising your home's space and value. Home extensions – Seamlessly blending new spaces with your existing property. Renovations – Modernisin
Get in touch
Michael Bellis
New on MyBuilder
Extension Builder in Waltham Cross
Hi, I'm Michael, a friendly, reliable and hardworking tradesman who takes pride in delivering quality workmanship and leaving every job clean, tidy and finished to a high standard. I offer a range of home improvement and maintenance services, including painting and decorating, tiling, silicone and sealant replacement, minor repairs, shelving and general property maintenance. Whether it's a small repair, freshening up a room or tackling those jobs around the house you've been meaning to get done, I approach every project with care and attention to detail. I believe in being punctual, honest and easy to communicate with, keeping you informed throughout and making sure you're happy with the finished work. No job is too small. I'm always happy to discuss what you need and provide a straightforward, friendly service you can rely on.
Get in touch
Afrim
No reviews yet
Extension Builder in Waltham Cross
I have been a builder over 20 years doing all sorts of works like extensions lofts patio and many more
Get in touch
H & A Rail ltd
Rating: 5 out of 5
Extension Builder in Waltham Cross
We are a Civil Engineering Contractor
Get in touch
Latest review:
Groundwork & Foundations- 22 Dec 2021
I couldn't have asked for more from this firm.... called when they said they would, arrived early and did everything they could to take away the stress of this stavr in my build. Clean and tidy works, pleasant and polite workforce. I will always use this firm for my work and highly recommend them
LPB Land Developments Ltd
No reviews yet
Extension Builder in Waltham Cross
We have been in the construction business for more than 25 years ranging from general building works to new build developments. We have also refurbished large buildings in the London areas on behalf of clients and main contractors.
Get in touch
R Hamandi Limited
Rating: 5 out of 5
Extension Builder in Waltham Cross
R.Hamandi Limited was established in January 2010 and firm in London, providing construction management, general contracting and consultant services. RHL specialises in construction and restoration of private and commercial sector in the heart of London including Residential refurbishment,Commercial,New build,Design and build, Basement construction, Kitchens specialists, Listed buildings, Sustainable buildings
Get in touch
Latest review:
My colleague referred me to Raed who previously have had used R.Hamandi Ltd for construction work and they were very happy with the quality of service. Along with some other building company's last year I also contacted Raed for an estimate. Raed gave us a reasonable price with all the details of proposed work. He also explained about the possible options of how we could get the best value for our money. His professional and friendly advice helped us a lot to understand what exactly we needed and what was best for us to go ahead for our project. We decided to go ahead with R.Hamandi ltd. Raed gave us breakdown of the project and everything was documented. His support in communicating with council and planning related issues was valuable. All the planning permission requirements were followed. Presence of experienced and trust worthy staff including laborers, handymen, carpenters and painters really made it easy for me and family to be around and comfortable while they were working or to leave the house whenever we had to. Raed himself used to visit the site everyday to oversee the progress and used to discuss and take care of any possible issues. Raed's team used to turn up on time and the project was finished on time too. Even after the completion of the project staff at R.Hamandi ltd and Raed himself contacted us few times to find out if we're happy with the work carried out or if we needed any further assistance. Now we have a fully refurbed house with double side extension and loft conversion. Overall amazing service, professional, reliable and trustworthy. I recommend R.Hamandi ltd to everyone for an A+ service. Thanks,

4.6

Top rated Extension Builders

Our Extension Builders in Waltham Cross, are rated 4.6 out of 5 based on 17 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 Waltham 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 Waltham 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 Waltham Cross who are available and interested can respond to your post.

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

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

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

Find extension builders in Waltham Cross with MyBuilder

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

Step 2: Compare different extension builders in Waltham Cross

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

Step 3: Hire Waltham Cross extension builders with confidence

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

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

What to ask a Waltham Cross extension builder before hiring?

Before hiring an extension builder in Waltham Cross or extension building company in Waltham 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 Waltham Cross?

An extension builder in Waltham 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 Waltham 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 Waltham 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 Waltham 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 Waltham 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 Waltham Cross

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

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

Many Waltham 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 Waltham Cross help with materials and finishes?

Yes, most extension builders in Waltham 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.