Extension Builders in Streatham Hill

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4 (20 reviews)

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Some of our top rated extension builders in Streatham Hill

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ALT’s Builders
Rating: 5 out of 5
Extension Builder in Streatham Hill
We are a family run business with more than a decade of experience. At ALT’s Builders Ltd we pride ourselves on an efficient and friendly service, and achieve 100% costumer satisfaction ethic. So no matter how big or small your job is we can help. ALT’s Builders Limited is a leading and reputable Construction Company serving around London Ever since we opened for business, we’ve taken a comprehensive approach to construction industry, providing our clients with a wide range of services to cover their needs. our clients are our Number one priority and we go extra mile to make sure they’re completely satisfied. we stand by the excellence of our work and provide clients with personalized attention based on their specific needs. With this service, we’re fully prepared to tackle even the most complex projects and stand by the exceptional quality of our work.
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Latest review:
Loft Conversion- 6 Jul 2026
Brief was a loft conversion + our front driveway completed in East Dulwich, South East London in Q1 2026 and we’d happily recommend Altin from ALTs builders if your in need of a good quality builder: - Competitive price - Good comms throughout - Hard working and extra hours as required to keep project on time - Highly reviewed on checkatrade.com / mybuilder.com company profiles - Overall professional job which we are super happy with When finishing up with us he then started another project down the road off the back of our recommendation and I know they are also very happy with him as a builder!
Alfa style LTD
Rating: 5 out of 5
Extension Builder in Streatham Hill
Specialists In Loft Construction,house extension and renovation . We can convert your loft to maximise your living space,by converting it to create a new bedroom,bathroom,office or playroom. Alfa style ltd the primier home conversions company you can trust for reliable,honest and quality workmanship. Here at Alfa style ltd we offer high quality loft conversion in South West London and surrounding areas.
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Latest review:
We had the pleasure of working with Alfa Style Limited on our loft conversion and we can recommend them highly and without reservation. Their work is incredible, attention to detail outstanding – our build was done with care and precision. They turned up on time every day, worked incredibly hard and quickly. In addition, they were extremely clean and tidy in the workplace – they never left the worksite in disarray. This is the first time we have done such a big project – Ruslan, Slava and their team were amazing. They were brilliant at explaining what was going to happen, day by day, week by week and translated the more technical information! No question or query was too much. The service after the build had finished has also been great, calls to check everything is OK and any queries we have, they are only a phone call away. We have had so many compliments from family and friends who have seen the finished build … it has made a huge difference to our house, we could not be happier.
T&S Construction
Rating: 5 out of 5
Extension Builder in Streatham Hill
Ive been in building work all my life and im very good so people say theres not many builders like me ,try me and i bet you have me back i can show my work .
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Latest review:
Extensions- 2 May 2018
Tom is a very competent builder, who has attention to details. Tom continuously went out of his way to find ways to meet my requirements, Whenever we had atypical challenge during my extension Tom's default position was "let's find a work around." He was creative and efficient in doing so, and most importantly cost effective, as I was running on tight budget. Fantastic experience working with Tom, he estimated the work to complete in 6 weeks, the work was done 5 and a half weeks and handed over. The works speaks of itself, very urban finish with high level of professionalism. I was almost hands off the project due to work travel, and Tom took care of all the aspects without me being involved day to day and micro manage. He is surely being to be big league builder in no time. I would recommend him whole heartedly.
CB brickwork
Rating: 5 out of 5
Extension Builder in Streatham Hill
Welcome to CB Brickwork. I’m Ciaran a bricklayer from Scotland and I moved to London 2 years ago. I’ve worked for large building companies for many years and now looking to take on projects with My Builder. I have an eye for detail and take pride in my work. Not to mention I am polite and courteous! I am happy to meet up and look at your project. I can also help you plan and create ideas for your dream design. Looking forward to chatting with you! Ciaran
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Latest review:
Bricklaying- 17 Mar 2022
Ciaran did a great job with building our wall. Great communication throughout and always kept us in the loop. Good time keeping and kept the work area very clean and tidy. Would highly recommend.
Ion Soceanu Construction Ltd
Rating: 5 out of 5
Extension Builder in Streatham Hill
My company offering high quality all-in-one building and home renovation services to customers. Our Services Include : Restoration & Refurbishment Carpentry Painting Decorating Flooring Electrical Plumbing Plastering Tiling Roofing Extensions Loft conversion.
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Latest review:
Joinery & Cabinet Making- 24 May 2025
The work done exceeded our expectations...we decided to build more bespoke carpentry with Mini and team which we did not originally planned for
DC Brickwork
Rating: 5 out of 5
Extension Builder in Streatham Hill
Dear Customers I am honest trustworthy reliable and hardworking and I have over 25 years experience in the industry.
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Latest review:
Bricklaying- 29 Jun 2017
I would recommend Damian. Did a good job, good communication and was on site when he said he would be. Polite and friendly. I would be happy to use again.
City Building and Roofing Ltd
Rating: 4.9 out of 5
Extension Builder in Streatham Hill
City Building and Roofing Ltd provides professional roofing, refurbishment and building services across London and Surrey. Our services include roof repairs, new roofs, flat roofing, GRP roofing, roof refurbishment, guttering, fascias and soffits, chimney work, damp proofing, brickwork and full property refurbishment. We work with homeowners, landlords and commercial clients, delivering reliable workmanship, honest advice and free no obligation quotes.
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Latest review:
Damp Proofing- 26 Mar 2022
Good,timely and clean workers. Worked hard and efficiently with clear explanations. Very satisfied with the finish.
EJF Homes
Rating: 5 out of 5
Extension Builder in Streatham Hill
At EJF Homes LTD we are skilled, honest and professionals in the building industry with a proven track record of success in kitchen and bathroom refurbishments, installations, carpentry and other maintenance work. We are passionate about delivering high-quality projects on time and within your budget. From the initial consultation until the job is finished, we will work with you closely and provide a reliable and transparent service. If you'd like to get in touch or find out more, please don't hesitate to get in touch. We're happy to help.
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Latest review:
We bought a house that had to be fully stripped down and renovated and Eugene managed just about everything for us. From fitting the kitchen to installing everything in the bathroom, sorting out the electrics and laying all the hardwood flooring and tiling. Everything was completed very efficiently and to an incredibly high standard. Would definitely recommend.
Aquaspark ltd
Rating: 5 out of 5
Extension Builder in Streatham Hill
We are plumbing, Heating and general building company based in south west London. We are fully GAS SAFE qualified and fully INSURED. Expert in all makes of Boiler repairs and installation. Carry most of the parts in van to fix then n there to avoid cost to client. we work on Very REASONABLE COST AND ALL our work is GUARANTEED. Under floor heating Central heating Bathrooms Gas safety inspections AS A VAILLANT APPROVED CONTRACTOR WE OFFER UP TO 10 YEAR GUARANTEE ON NEW BOILERS
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Latest review:
Gas Work- 6 Feb 2019
Gajraj from Aquaspark provided a very prompt and professional service. He was quite pleasent to speak to, and explained me the problem and solution in detail. He fixed my fireplace and cleaned up after completing. Really please about the overall experience.
Ivory Construction and Maintenance Ltd
Rating: 4 out of 5
Extension Builder in Streatham Hill
At Ivory we always make sure we go out of our way to help our clients to the best of our ability, we will always advised and help out as much as we can. We have worked on many bathrooms, kitchen, refurbishments and extensions. We will always make sure our work is top quality
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Beds4All
Rating: 5 out of 5
Extension Builder in Streatham Hill
We are a professional construction team with hands-on experience in building homes, extensions, renovations, and structural work. Whether it's laying a foundation, brickwork, roofing, or complete builds — we do the job right, on time, and with pride. ✅ Quality workmanship ✅ Reliable team ✅ Clean, safe, and efficient job sites ✅ Client satisfaction is our priority Services Offered: New Builds Home Extensions Renovations & Refits Brickwork & Blockwork Roofing Driveways & Patios
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Latest review:
Handyman- 17 Sep 2025
Very happy with recent job, would recommend.
Builders in Sutton
Rating: 5 out of 5
Extension Builder in Streatham Hill
About company We understand that remodelling any environment can be a stressful and complex undertaking but by working closely with you throughout the project we can identify your needs and minimise the stress wherever possible. We have hand-picked our suppliers, using only quality products and recognised brands. This ensures a consistent, high standard of refurbishment works all of our products .
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Latest review:
Kitchen Fitting- 9 Aug 2026
Andy was brilliant from start to finish. Friendly, professional, very knowledgeable and willing to offer advice (but also happy to do it the customers way!). We had a large kitchen fitted with appliances and there were the usual “adjustments” off plan required -Andy did them without making a fuss. I would happily recommend Andy to a friend for kitchen fitting.
ResidentDevelopments
Rating: 5 out of 5
Extension Builder in Streatham Hill
Conceiving and delivering aspirational residences, for the Resident.
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Latest review:
We have previously been burnt working with self proclaimed tradesmen. The organisation is professional and customer focussed. Working with them was a pleasure, I couldn’t recommend them enough.
Nami Construction Ltd
Rating: 5 out of 5
Extension Builder in Streatham Hill
We offer comprehensive property refurbishment services that include decorating, plumbing, electrical work, plastering, extensions, and loft conversions. Our team comprises professionals, and we ensure that all instructions are regularly reviewed with our clients throughout the duration of the project. We provide transparent and detailed estimates and updates on a regular basis to help you control your budget. Our services cater to all types of homes, such as those owned by landlords, Thank you
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Latest review:
Plumbing- 19 May 2026
Emir did a good job. The company did a bathroom refurbishment after water leak, repaired the damaged ceiling downstairs and painted the room. Emir’s attention to detail is very good and he went the extra mile to do the job properly. I will recommend his services.
Attique & Sons
Rating: 5 out of 5
Extension Builder in Streatham Hill
Hi, I’m a qualified plumber and gas safe with over 15 years of trade experience. I have worked on full house renovations, commercial sites and new builds over the course of my career. I can do the following types of jobs. Plumbing Bathroom Fitting Gas Safe Central Heating Kitchen Fitting Boiler Installation
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Latest review:
Plumbing- 19 Dec 2021
Abdul cane to estimate the job. He started working the next day. He changed a completed bathroom. New toilet, new basin and new shower and base. Also fitted a hot water boiler for the basin. He completed the job and I was happy to pay him for his speedy work.
Shpati Construction Ltd
Rating: 4.9 out of 5
Extension Builder in Streatham Hill
Myself and my team have over 20 years of experience in the building sector. We deliver the highest standard of quality in every job to meet our clients expectations and turn their dreams into reality. We cover ALL areas across London and can provide you with job references and photos if you wish to.
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Latest review:
Tiling- 3 Oct 2018
Goni and his team did a fantastic job. He came around to quote promptly, and the quote was competitive. The tiling itself was done to an exceptionally high stand with a precise eye for detail. He also did a couple of other extra jobs - fitting a doorstop, replacing a radiator so the tiling was perfect, and fitting a tiled upstand where the old skirting boards were. I am deeply impressed and have no hesitation in recommending Goni.

Top rated Extension Builders

Our Extension Builders in Streatham Hill, are rated 4 out of 5 based on 20 reviews from customers like you.

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What types of services are offered by local extension builders in Streatham Hill?

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 Streatham Hill 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 Streatham Hill who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Streatham Hill?

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

Find extension builders in Streatham Hill with MyBuilder

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

Step 2: Compare different extension builders in Streatham Hill

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

Step 3: Hire Streatham Hill extension builders with confidence

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

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

What to ask a Streatham Hill extension builder before hiring?

Before hiring an extension builder in Streatham Hill or extension building company in Streatham Hill, 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 Streatham Hill?

An extension builder in Streatham Hill 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 Streatham Hill 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 Streatham Hill?

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 Streatham Hill 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 Streatham Hill 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 Streatham Hill

Can an extension builder in Streatham Hill help with planning permission?

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

Many Streatham Hill 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 Streatham Hill help with materials and finishes?

Yes, most extension builders in Streatham Hill 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.