Extension builders in Waltham Cross

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.8 (16 reviews)

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Some of our top rated extension builders in Waltham Cross

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Mali
Rating: 3.7 out of 5
Extension Builder in Waltham Cross
At Mali Construction Ltd we offer clients a full set of specialised services.Our aim has always been to provide good quality to each of our clients in services delivered and finished product. We accomplish this through a dedicated, professional workforce and an approach which exceeds customer expectations. We specialise in: Roof and loft conversion Extension, New builds and Refurbishments We tend to obtain work through recommendations and word of mouth so we are fairly new to My Builder
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Latest review:
Extensions- 11 Apr 2024
AMAZING CONTRACTORS ! Mali Constructions did an absolutely amazing job. They were professional and vey friendly. The works took 3 weeks and Mali ensured the works were carried out with high expertise. Such a smooth and great service and worthy every penny. The pricing was reasonable and within my budget and I was kept informed throughout the whole process. The project was completed to a great standard and we are very happy with our new space and would absolutely recommend Mali Construction to anyone looking to complete work. If you are looking for a contractor with great communication, great workmanship and priced correctly, I would definitely use Mali Construction Ltd. Mali would provide regular updates, discussions and even worked with my many changes to the plans during the process with no issues. No matter time or day, they were always on hand to respond to any questions. They were also quick to point out unnecessary extras that ended up saving us money.
D&E Smart Building Solutions Ltd
Rating: 5 out of 5
Extension Builder in Waltham Cross
Loft conversion. New or refurbished extension. All Carpentry work. New decking or refurbished. Brick walls front of the house, or new building. New or refurbished bathroom, Tilse, Garden, Kitchen, Wood floor, Plumbing with certificate, Electrical with certificate, and much, much more..
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Latest review:
Bathroom Fitting- 7 Mar 2022
Daniel was great and we were impressed by the level of care and detail in his work. Would use him again and recommend to friends.
GREAT UK CONSTRUCTION LTD
Rating: 4.9 out of 5
Extension Builder in Waltham Cross
Welcome to GREAT UK CONSTRUCTION LTD! With 6 years of experience, we specialize in interior and exterior renovations alongside meticulous maintenance services. Our commitment to quality and innovation ensures excellence in every project we undertake.Thank you for choosing GREAT UK CONSTRUCTION LTD! Your trust in us fuels our passion for excellence.
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Latest review:
Handyman- 26 Jun 2026
Hired Madelin recently for home renovations which included removing wood chipped wallpaper, plastering/skimming from living room + hallways. Was so impressed with Madelin's tireless hardwork, attention to detail, and craftsmanship that I also added replacing laminate flooring too. Quotes were transparent with breakdown on services and materials. Madelin also accommodated extra work too for a fair price and very small things free of charge which I appreciated. Overall, I was extremely pleased with Madelin's tidiness, punctuality, transparency/ honest communication and final finish of my home renovations. Would highly recommend and have favourited for future home renos.
BUBuild Limited
Rating: 4.6 out of 5
Extension Builder in Waltham Cross
Family run business with over 10 years of experience in the building industry, we provide high-quality workmanship and reliable service for every project, big or small. We specialise in full bathroom and kitchen renovations, full house refurbishments, extensions, flooring, and a wide range of general building work. No matter the size of the project, we work closely with our clients to achieve the best possible results and bring their ideas to life. You can find more photos of our work on instagram @bubuild.ltd
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Latest review:
Bathroom Fitting- 18 Sep 2021
During the quote nothing was too difficult and Iustin had some great ideas. 'You tell me what you want and we'll do it.' Great. Day one they caused a leak into the kitchen. Halfway through day two we ordered work to stop because it was still leaking. It took several calls to Iustin to resolve. The leak caused the extractor fan in the kitchen to drop. They fixed at the end but the lights on it don't work consistently. Attention to detail was zero. Floor not sealed behind cupboard, wobbly plaster, streaks of white paint on blue (and vice versa), chipped paint, and tiles not evenly placed, with roughly cut edges. New flooring laid before finishing the walls, dropping sealant, dust and paint on it. Many things had to be redone or changed - but they generally did redo when asked. A window they put in is lower than agreed and the pebbledash doesn't match. They installed the vanity unit on the wrong wall. No dust sheets were put down over kitchen surfaces when drilling through concrete, covering everything in a thick layer of dust. The project was contracted to finish by 4 September, but took until 15 September. Iustin did apologise for this on the last day. On the last day, Marin threatened us because we wanted to wait until the job was finished to send the final payment. At that point we'd paid £500 more in instalments than agreed. Receipts for materials contained items not used or not ours. They took away things that we'd paid for. Overall not a great experience.
Ian Warren Brickwork
Rating: 5 out of 5
Extension Builder in Waltham Cross
Bricklayer by trade 30 years We do extensions, alterations, loft conversions, orangries all types of roofing we also do new cement board cladding and all types of fencing
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Latest review:
Extensions- 16 Mar 2022
The extension has come out great and we are very pleased with the space gained. The bathroom is stunning. Ian was very approachable to discuss details and make changes through the job.
LDK BRICKWORK
Rating: 5 out of 5
Extension Builder in Waltham Cross
Brickwork ,extentions, restoration, pointing , retaining walls
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Latest review:
Bricklaying- 13 Aug 2021
We agreed on a price which was satisfactory, Keaton and his team were very professional job completed , brick laying to a good standard. Very happy would recommend friends.
Daniel Gagea
Rating: 5 out of 5
Extension Builder in Waltham Cross
We are onest builders, quick and reliable jobs, new on my builder but with lots of experience on the trade, looking for work, we do all kind of refurbish jobs, decorating, carpentry, basic plumbing and electric, new bathrooms or kitchens, back or loft extensions ,landscaping and much more We offer guarantee for our work. Everything seen on the pictures is 100% our work and we have loads of other pictures
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Latest review:
Daniel quoted comprehensively and clearly for both jobs that I needed, building an extension and a raised patio at the end of the garden. He worked extremely hard and diligently every day. Also he would summarise what he would do next and we discussed any changes etc and which tiles or render I preferred. I am very happy with both the patio and extension and Daniel finished everything off to an excellent standard and went above and beyond the quote. I would not hesitate to use him again and recommend him highly.
EHJ Developments LTD
Rating: 4.8 out of 5
Extension Builder in Waltham Cross
Our construction company offers comprehensive services encompassing plumbing, electrical work, carpentry, full house refurbishment, and loft and house extensions. With expertise in diverse trades, we deliver high-quality craftsmanship and personalized solutions to meet every client's needs. From minor repairs to large-scale renovations, we handle projects with precision and efficiency, ensuring superior results and client satisfaction. Our skilled team is dedicated to excellence, using innovative techniques and premium materials to achieve durable and aesthetically pleasing outcomes. Whether it's upgrading a kitchen, adding extra space with a loft extension, or revamping an entire property, we pride ourselves on delivering exceptional construction services that enhance the functionality and value of homes.
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Latest review:
Carpentry- 15 Jul 2026
Happy to recommend EHJ Dev. Ltd. Ash did a nice job (carpentry) was prompt; good communications and we would definitely ask him again when the need arises.
B.CANI Limited
Rating: 5 out of 5
Extension Builder in Waltham Cross
Reliable, fully insured construction company delivering high-quality workmanship across residential and commercial projects. We cover all aspects of construction including extensions, renovations, loft conversions, kitchens, bathrooms, roofing, landscaping and full refurbishments. From design to completion, we manage every stage with clear communication, fair pricing and attention to detail. Customer satisfaction, safety and deadlines are our priority.
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Latest review:
Extensions- 11 Jan 2018
This was our first project, and we were exceptionally fortunate to find Bujar. We're actually getting tired of hearing our family and friends tell us how lucky we are and how amazing he sounds. One of the most honest, trustworthy, and genuine people I've ever met. If I had a problem, he'd be one of the first people I'd call! In fact I did last week and he came to the rescue :) His team were all friendly, polite, conscientious and very tidy. They worked around us as much as they could, always making sure we had access to what we needed which sometimes meant it took them longer to work. Bujar is a perfectionist and is so proud of what he does, he made sure everything was done to a high standard - the estate agent who came round after we were done was impressed! His prices are very fair (better value than other quotes we got and much less time). We couldn't believe it was done in the 3 months he said it would take, and we managed to fit in a few extra bits and pieces after that. He was so helpful throughout, took all project management on and didn't bother us unless an important decision needed to be made. He drove us around all over the place to sort kitchens, bathrooms, etc. and gave us really helpful advice throughout the process. Highly recommend him and his team. I can't imagine ever wanting to look for another builder unless I had to - something that is quite common amongst Bujar's clients. We are extremely pleased with everything about our new house.
JOEN CONSTRUCTION LTD
Rating: 5 out of 5
Extension Builder in Waltham Cross
Welcome to JOEN CONSTRUCTION LTD. We provide a full range of building services in London. We undertake all types of construction from new builds and home extension to painting,electrical installation,renovation,ect. We pride ourselves on being a construction company with time served domestic builders who offer a bespoke service with results tailored to your specific needs. With a solid reputation for quality. What’s more,we are well-known for delivering projects on time and to budget.
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Latest review:
Kitchen Fitting- 3 Dec 2024
Sinan assessed the job and returned to complete the work in a short time. Very pleased with the work. Very clean and tidy and on time. Reliable, courteous and a very nice man. Would highly recommend him
Firtree building services ltd
Rating: 5 out of 5
Extension Builder in Waltham Cross
Firtree building services ltd Has been trading since 2011 and specialises in residential extensions and loft conversions.
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Latest review:
Extensions- 13 Nov 2020
Matt and his team recently completed a fantastic job on our kitchen/extension and bathroom refurb. All of his team were great to work with and have on site, which really helped in what was at times quite a stressful space to remain living in. They always left the space as clean and tidy as possible which was appreciated. Matt specifically, was really flexible with us as we had delays in getting permissions and also were a little unclear on exactly what finish etc we wanted on things. He gave us genuine advice on everything from underfloor heating to the skylights and doors. We are so pleased with the finish of everything from the tiling and paving to the bathroom. Can't recommend Firtree enough, if we look to do the loft we will be straight back in touch. Many thanks to all, but special thanks to Matt, Sean, Dan and Joe who held it all together.
B&B London Construction LTD
Rating: 5 out of 5
Extension Builder in Waltham Cross
Our team construction is a specialist in loft conversions, house extensions, refurbishments and lot more.
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Latest review:
Benny and his team completed our loft conversion in 2022 and we've been very happy with the work carried out. From the beginning of the quote process through to completion, Benny and his team were extremely professional, hardworking and reliable. The work was finished on time and as quoted. Benny was happy to offer advice on what we were looking for and adapt elements as we progressed. The quality of the work was excellent and his team are clearly experienced and thorough. We're really enjoying the additional space and would highly recommended B&B to anyone considering using them.
BCON
Rating: 5 out of 5
Extension Builder in Waltham Cross
LOUGHTON- Essex|London Helping you give your home a new look! Full refurbishment specialists bringing high quality workmanship with communication through the whole procedure. •Open plan living •Structural wall removals •Full Bathroom/wetrooms installations •Kitchens •Tiling •Flooring •Plastering •Garden renovations
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Latest review:
Carpentry- 27 Jul 2026
10/10 for this company; Guy was very easy to deal with,gave a reasonable quote for Garden Fencing(including preparing and raising concrete posts and gravel boards) and extending on patio slabs. He made sure that what was agreed on was what he'd deliver. I can honestly say, from start to finish it has been a pleasure doing this business with BCON, Guy takes pride in his work and definitely does not cut corners. Puts in a proper full days work, leaves property clean and tidy and completes the assigned job on time. Guy went the extra mile to source near to identical paving slabs when asked. I definitely will hold on to his details for future projects when they arise, with no hesitation to hire and recommend again.
Nilo Construction Ltd
Rating: 5 out of 5
Extension Builder in Waltham Cross
Nilo Construction LTD is a 🏗️DESIGN & BUILD company specialising in FULL HOUSE RENOVATION, EXTENSIONS, LOFT CONVERSIONS & BESPOKE JOINERY With our in-house team of highly skilled Multitraders, project managers, designers and architects, we have the expertise to bring even the most complex projects to life. We are fully insured and qualified, ensuring both safety and quality in every aspect of our work. The feedback from our previous clients speaks for itself, reflecting our commitment to excellence and customer satisfaction. With a wealth of experience and a team of professionals, we are the ideal partner for both residential and commercial development projects.
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Latest review:
Conversions - General- 3 Nov 2024
Igor, Zhan and team were fantastic. Communication was great start to finish and they completed the job to a high standard on schedule
Omerta Builders Limited
Rating: 5 out of 5
Extension Builder in Waltham Cross
We undertake many jobs and specialise in extensions, loft conversions, painting and decorating, bathrooms, kitchens, and plumbing and electrical works. We work all over London, and have even completed jobs outside of London too. We take pride in the quality work we deliver, and make sure customer satisfaction is at the forefront of what we do. Combined within the company we share 30 years of construction experience.
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Latest review:
Extensions- 11 Jun 2019
Very good builders. Came on time every day and finished work on time. Very reliable and trustworthy. We had quite a few hiccups along the way but they always managed to find a solution. Would definitely recommend them and use them again.
Nani Builders Ltd
Rating: 4.8 out of 5
Extension Builder in Waltham Cross
Nani Builders gives you high quality of work and competitive quotes. We’re operating in construction for about 16 years.We work really hard and we have a great reputation with our clients. We cover all aspects of property no job is big or small!
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Latest review:
Extensions- 27 Feb 2023
Nani was extremely professional throughout the kitchen renovation and went above and beyond to ensure everything was perfect. Nani is extremely knowledgeable and has a team of highly skilled individuals to carry out the job to a high standard - this includes building the downstairs toilet and utility room. I highly recommend Nani for any building work.

4.8

Top rated Extension Builders

Our Extension Builders in Waltham Cross, are rated 4.8 out of 5 based on 16 reviews from customers like you.

Quality screening

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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.