Extension Builders in Upper Walthamstow

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (20 reviews)

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Some of our top rated extension builders in Upper Walthamstow

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E.r.m electrical services
No reviews yet
Extension Builder in Upper Walthamstow
We are ERM Electrical Service, a team of six dedicated professionals, specializing in electrical work for buildings and constructions. We provide safe, efficient, and tailored solutions for each project.
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Cross Country
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Extension Builder in Upper Walthamstow
12 years experience in Bricklaying New build Extension Garden wall Garage conversion
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Riobuild Ltd
No reviews yet
Extension Builder in Upper Walthamstow
Riobuild is an experienced and friendly professional team who offer design and build services to homeowners and commercial businesses. We believe everybody should have an incredible home to live in. A space that brings you comfort and happiness, reflects your personality and functions in a way that works with how you live. We can help you create a home like this.
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L R Construction
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Extension Builder in Upper Walthamstow
L R Construction is a family run business with nearly 40 years experience in the building industry. We take pride in our work and keeping our sites clean and tidy. Forming a great relationship with our customers making your building work as stress free as possible. All building work undertaken
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Gill Builder
No reviews yet
Extension Builder in Upper Walthamstow
I am always available for electricity, plumbing, house renovation, floor heating, extension, driveway, garden work etc. No Job is small for me and I always do my job with dedication. I have more than 10 years of work experience in construction line. note: - free quotation for work.
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MKSummer Ltd
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Extension Builder in Upper Walthamstow
We provide Design & Build services. Planning application drawings and structural calculations, project management and construction service. Our builders are all experienced in new build, extension, loft conversion and interior alterations.
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Access Builders Direct LTD
No reviews yet
Extension Builder in Upper Walthamstow
Premium Turnkey Building Services – From Concept to Completion! We specialize in new builds, extensions, loft conversions, garden rooms, full house refurbishments, groundworks, below-ground drainage, and all aspects of construction. With a commitment to exceptional quality and craftsmanship, we turn your vision into reality. Contact us today to bring your dream project to life!
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Starlight Distribution Ltd
No reviews yet
Extension Builder in Upper Walthamstow
All construction work undertaken, specialising in kitchen extensions, loft conversions and outbuilding/annexes. We aren’t the cheapest quote. The quality of our work, completed in a timely manner makes us outstanding with 80% of our clients repeat customers! We will NEVER: Take your money and run ❌ Leave a job incomplete ❌ Ask for more money than agreed ❌ Be a nuisance and inconvenience ❌ We even bring our own kettle so you don’t have to make us tea!
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Stones Woodburners
Rating: 5 out of 5
Extension Builder in Upper Walthamstow
At Stones Woodburners, we offer much more than just expert heating solutions. In addition to our certified stove and heating system installations, maintenance, and repairs, we specialize in custom building services, including the creation of unique fireplace surrounds, mantels, and beams. We work closely with our clients to design and build features that complement their homes, adding both function and style. Our team of skilled professionals is experienced in every aspect of heating system care and home building, ensuring that your wood-burning stove is not only efficient and safe but beautifully integrated into your living space. Whether you’re looking to install a new stove, replace a worn-out mantel, or create a custom fireplace feature, we provide top-tier craftsmanship and attention to detail. We are fully insured, Hetas registered, compliant with all necessary regulations, and committed to delivering sustainable, efficient, and aesthetically pleasing heating and building solutions. Hope to speak to you soon!
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Latest review:
Fireplaces & Flues- 18 Dec 2025
Brilliant - would re-hire in a heartbeat! Excellent service and clear communication
MB BG CONSTRUCTIONS LTD
No reviews yet
Extension Builder in Upper Walthamstow
Welcome to MB BG CONSTRUCTIONS LTD We are a company based in South London offering the service that we would expect to receive ourselves. Our values run through every aspect of what we do – from the moment you commission us, to the moment we hand over the keys. We offer no obligation quotes for any of the following areas: Roofing Extensions Loft Conversions Garage Conversions Building Renovations Groundwork & Drainage Kitchens & Bathrooms Painting % Decorating
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Marin
No reviews yet
Extension Builder in Upper Walthamstow
Carpenter joinery and tiler
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B.E Home Improvements
Rating: 5 out of 5
Extension Builder in Upper Walthamstow
Local building company. Loft specialists with a decade of experience. Why move out when you can move up? Complete loft packages available from plans to completion. Will work off your plans.
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Latest review:
Loft Conversion- 20 Jan 2026
I have chosen Byron and his company to complete my loft conversion. Job was completed within given time frame. Byron and the team were polite and hard working. During the building time, any issues found by myself were addressed and rectified as much as possible. At the closing weeks of my project, I have asked Byron to complete additional carpentry tasks. He found the time to accommodate my requests. Job had some messy stages but Byron was always trying to leave site clean as much as it was reasonably possible. Thank you for your work and I would be happy to hire you again in the future.
Razvan Building Services LTD
No reviews yet
Extension Builder in Upper Walthamstow
Hi .I am Razvan the owner of Razvan Building Services LTD company specialised in full property refurbishment and all aspects of building works .With over 20 years of experiences in building trade and a good portfolio I am waiting for the next challenge . I can provide references from previous customers on request . We cover central , west and south London but we are proud to say we have offered our services outside London : Brighton , Isle of Wight, Walton on Thames
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Ecotime design and build Ltd
No reviews yet
Extension Builder in Upper Walthamstow
Dear customer. I’m electrical and building contractor with 24 years experience in construction industry. Quality and customer satisfaction is our ultimate goal. Delivering a great service is our mission. We don’t shy away from small medium and large projects. All welcome. Thank you.
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Steps builders
No reviews yet
Extension Builder in Upper Walthamstow
Welcome to Steps Builders Ltd, your premier destination for expert building solutions. Specializing in loft conversions, house extensions, refurbishments, renovations, and garden fence installations, we pride ourselves on delivering high-quality craftsmanship At Steps Builders, we understand that every project is unique, which is why we tailor our services to meet your specific needs and budget. Contact us today to schedule a consultation and let us bring your vision to life
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Da ConstruktionLine.ltd
No reviews yet
Extension Builder in Upper Walthamstow
My team and I do high quality work. We want our customers to always be satisfied with the work we do.
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4.2

Top rated Extension Builders

Our Extension Builders in Upper Walthamstow, are rated 4.2 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 Upper Walthamstow?

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 Upper Walthamstow 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 Upper Walthamstow who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Upper Walthamstow?

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

Find extension builders in Upper Walthamstow with MyBuilder

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

Step 2: Compare different extension builders in Upper Walthamstow

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

Step 3: Hire Upper Walthamstow extension builders with confidence

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

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

What to ask a Upper Walthamstow extension builder before hiring?

Before hiring an extension builder in Upper Walthamstow or extension building company in Upper Walthamstow, 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 Upper Walthamstow?

An extension builder in Upper Walthamstow 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 Upper Walthamstow 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 Upper Walthamstow?

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 Upper Walthamstow 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 Upper Walthamstow 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 Upper Walthamstow

Can an extension builder in Upper Walthamstow help with planning permission?

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

Many Upper Walthamstow 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 Upper Walthamstow help with materials and finishes?

Yes, most extension builders in Upper Walthamstow 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.