Extension Builders in Waterloo

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 Waterloo

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RS Homes
Rating: 5 out of 5
Extension Builder in Waterloo
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.
DARS
No reviews yet
Extension Builder in Waterloo
DARS We are a friendly professional and local company dealing with the smallest project such as building maintenance to major renovations.We pride ourselves on our quality of workmanship, tidyness and exceptional customer relations to ensure every job exceeds expectations.We cover all areas in with in London and beyond.We work closely with the best suppliers which brings you, the customer, not only the best quality but great prices too and we provide a variety of options for every job.
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TEMFOR DESIGN AND CONSULTANCY LTD
No reviews yet
Extension Builder in Waterloo
We offer all relevant services under one roof for your extension, loft conversion and refurbishment projects. We work across the London area and offer competitive, affordable prices. We provide free design advice, full planning drawings, submitting the plans, and preparing any changes requested by the council. We also specialize in Extensions, Loft Conversions, Structural Alterations, and Full Refurbishments. Fully insured and all our work is guaranteed .
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JPM Constructions London LTD
No reviews yet
Extension Builder in Waterloo
20 Years Experience building lofts and extensions and all finishing works throughout the house . Recommendations and pictures available to review
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SLK-Services Limted
Rating: 5 out of 5
Extension Builder in Waterloo
At SLK Services Ltd, we specialise in Loft Conversions, Extensions and Home Refurbishments. We also provide Home Maintenance (including Electrical, Plumbing and Carpentry), and Installation Work. We cover all of South East London and North West Kent, and offer a free, no obligation estimate service. We pride ourselves on offering quality construction, with a service you can rely on.
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Latest review:
Kitchen Fitting- 17 Feb 2026
Very professional and efficient. Would definitely use them again in the future.
A PROPERTY SERVICES & MANAGEMENT LTD
Rating: 5 out of 5
Extension Builder in Waterloo
***We cover the national grid*** I have been in the property industry since I left school, a traditional handyman specialising in brickwork, from external walls to internal extensions, plastering, painting, floor work - kitchen, bathrooms electrical, plumbing, air cons, lighting, gardening, disability access ramps. I have a team, who each hold a vary of skills set that work together to deliver the very best standard. ***We cover the national grid*** - our price will include any travel that is necessary - we go where the work is - we have always worked off word of mouth through customers, As times are changing we are having to come online. our work ethics are, 'the work speaks for itself' We always aim to work with our customers and advise as best we can if it helps you then it helps us. We are new on this platform and aim to gain good reviews.
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Latest review:
Our driveway spotlight sensor stopped working - replacement spotlights, new stronger cable fitted, replacement driveway wall mount lights, disability ramp made and driveway washed. pretty straight forward. Sam bought the correct lights, extended cable and the sensor with his electrician from B&Q. Removed and replaced removed all the rubbish, respected our property gave the driveway a wash no hassle - left them to do their work and it was done. I would recommend using them they do what you want and how you want it - He does give you his opinion though up to you if you want to take it or not. happy to use them for further jobs
Property Makeover Ltd
No reviews yet
Extension Builder in Waterloo
For all property needs, there is Property Makeover Ltd. With our wealth of experience and in-depth expertise we are in a position to provide home improvement and property makeovers to the highest possible standard.
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Inspired Creations London Ltd
Rating: 5 out of 5
Extension Builder in Waterloo
We undertake residential and general construction projects including extensions, loft conversions and renovations. We also manufacture and install bespoke kitchens, bedroom and all kinds of fitted furniture.
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Latest review:
Extensions- 8 Dec 2021
Sukh and his team are tidy, experienced and skilled. The standard of work throughout the house is excellent. Will be keeping their contact details for any future projects. Would definitely recommend.
Pavdeja brother construction ltd
Rating: 5 out of 5
Extension Builder in Waterloo
We are a team of experienced, enthusiastic and reliable workers with project managers who work with you from start to finish. Our extensive team holds many years of experience in the construction, development and refurbishment field and aim to provide the best results for your property at competitive prices! We offer the following services: Full refurbishment Interior and exterior Bathroom fitting Kitchens Plastering Painting and decorating Extensions Loft conversion Plumbing
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Latest review:
Plastering- 3 Jun 2025
Edar and his team were excellent from start to finish. Very professional and I’d definitely hire them again and recommend their service to others. Thanks Edar and the team.
NICER LTD
No reviews yet
Extension Builder in Waterloo
We are a reliable and professional Chinese building team based in London, specialising in residential renovation and property improvement work. Although we are new to MyBuilder and do not yet have reviews on the platform, we have completed a wide range of projects for homeowners and landlords across London. We are happy to arrange viewings of previous completed work for peace of mind. We understand that good communication, reliability, and keeping to budget are just as important as the quality of the work itself. We take pride in being: • Punctual and hardworking • Clean and respectful in customers’ homes • Transparent with pricing and quotations • Efficient without cutting corners • Focused on delivering a professional finish We cover all aspects of home improvement, including bathrooms, kitchens, flooring, decorating, carpentry, and general building work. Our aim is simple — to provide dependable workmanship at a fair price and make the process as smooth and stress-free as possible for every customer.
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Home & Office Improvements Ltd
Rating: 5 out of 5
Extension Builder in Waterloo
We are a long established family business based in Greenford, Ealing. We cover all aspects of Plumbing & Heating, we also install all types of boilers, boiler repairs, boiler breakdown, boiler service, central heating systems, AGA-Rayburn cookers repair & Service, quality kitchens and bathrooms.
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Latest review:
Arrived on time. Very professional. Gave consultation and did the job in good time.
HM construction
No reviews yet
Extension Builder in Waterloo
H.Muzaci Contractor is a well-established building company with over 25 years of experience in the construction and renovation industry. We specialise in home renovations, extensions, refurbishments, and general building work, delivering high-quality results from start to finish. We pride ourselves on excellent workmanship, reliability, and attention to detail, no matter the size of the job. From initial planning through to completion, we work closely with our clients to ensure projects are delivered on time, within budget, and to a high standard. Customer satisfaction is at the heart of everything we do. We are tidy, respectful, and committed to clear communication throughout the project. Much of our work comes from repeat customers and recommendations, which reflects the quality and trust we’ve built over the years. Clients from all over City of London with references (Mayfair, Chelsea, Portsman Square). If you’re looking for an experienced, honest, and professional builder, H&M Construction would be happy to help.
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Transparent Building Services
No reviews yet
Extension Builder in Waterloo
Transparent Building Services offer a wide range of property services ranging from plastering, painting and decorating, fitting bathrooms, kitchens and other internal works all the way up to loft conversions, home extensions and full renovations. No job is too big or too small.
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ARL
No reviews yet
Extension Builder in Waterloo
painting, ceramics, plumbing. I like to be responsible, good quality in my work, guaranteed
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HARMANRAJ CONSTRUCTION
Rating: 4.9 out of 5
Extension Builder in Waterloo
Business Name: Harman Raj Constructions Ltd About Us: At Harman Raj Constructions Ltd, we bring 7 years of experience in roofing, building extensions, plastering, driveways, and fencing. We take pride in delivering high-quality craftsmanship for every project, whether big or small. Why Choose Us? • Expertise You Can Trust: Our 7 years in the construction industry mean we have the skills to handle a wide range of projects. • Customer-Focused: Your satisfaction drives everything we do. We work closely with you to ensure the final result matches your vision. • Specialized Skills: From roofing and extensions to plastering and fencing, our expertise ensures excellent results. • Quality & Reliability: We deliver on time, within budget, and without compromising on quality. Services We Offer: • Roofing installation, repairs, and maintenance • Building extensions and renovations • Expert plastering • Driveway construction • Fencing installation and repair Contact us today for a free quote and let us bring your construction ideas to life!
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Latest review:
Plastering- 11 Apr 2026
Absolutely thrilled with the work carried out by Harman. The skimming has been completed to an exceptionally high standard - the finish is incredibly smooth and completely seamless. Harman and his colleague were professional throughout: tidy, courteous, and very polite. They took great care to properly protect and cover the surrounding areas, leaving everything clean and intact once the job was done. What really stood out is their attention to detail and commitment to getting everything perfect - even offering to return for any final finishing touches if needed. I honestly couldn’t recommend them highly enough. Brilliant job from start to finish.
Installpro Bathrooms and Kitchens
Rating: 5 out of 5
Extension Builder in Waterloo
If you are looking for specialists - refurbishments, lofts and extensions, kitchen and bathroom fitters do not hesitate to contact me and I will make sure that we are the right firm. Wet rooms,Tiling, Gas Safe and heating services, Part p electrician (NICEIC) Excellent customer care and high quality, warranted service.
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Latest review:
Extensions- 7 Feb 2020
I had installpro put an extension on my kitchen by knocking a lean-to and extending into that space, also completed insulation and roofing on the new extension and existing roof, this involved building new external walls, damp course membranes, plastering, new cast iron radiators were plumbed in, new electrical circuits and sockets, tiling, skirting, painting, new sash window fitted, new guttering and fascia and even a fitted kitchen bench was made from scaffold boards, which came out really nice. Marek was very professional and everything was done in a timely manner, no waiting around once things were agreed on. Always early every morning and working full days, even one of his team worked a Saturday to stay on the timeline. The quality of the work was very good, I was impressed with the roofing, proper insulation was used throughout, at the side of the roof behind the fascia too and new lead flashing was finished properly. The team that worked here were very clean, always using proper dust sheets and cleaning up at the end of each day. At the end of the job, final touch ups were made after consultation, to make sure I was happy with everything and then Marek saw that a proper cleanup happened and everything was completed on time and on budget as outlined at the beginning. I can recommend Installpro, and I will use them again for future work on my property.

4.1

Top rated Extension Builders

Our Extension Builders in Waterloo, 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 Waterloo?

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

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

What are the hourly rates of extension builders in Waterloo?

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

Find extension builders in Waterloo with MyBuilder

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

Step 2: Compare different extension builders in Waterloo

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

Step 3: Hire Waterloo extension builders with confidence

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

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

What to ask a Waterloo extension builder before hiring?

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

An extension builder in Waterloo 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 Waterloo 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 Waterloo?

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 Waterloo 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 Waterloo 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 Waterloo

Can an extension builder in Waterloo help with planning permission?

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

Many Waterloo 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 Waterloo help with materials and finishes?

Yes, most extension builders in Waterloo 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.