Extension Builders in Harrow, Greater London

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (15 reviews)

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Some of our top rated extension builders in Harrow, Greater London

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SharpEyeTradesmen
New on MyBuilder
Extension Builder in Harrow, Greater London
At SharpEyePlumbing, we understand how stressful plumbing problems can be, which is why we focus on quick response times, clear pricing, and friendly service. No job is too big or too small — we treat every home and customer with care and respect. Our goal is simple: to provide dependable plumbing services you can trust every time.
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Eisa construction services LTD
No reviews yet
Extension Builder in Harrow, Greater London
Welcome to Eisa Construction Services! We are a trusted and experienced construction company committed to delivering exceptional quality, safety, and value in every project we undertake. With years of expertise, our team specialises in residential, commercial, and industrial construction, handling everything from new builds to complex renovations and custom designs. Our mission is to exceed client expectations with a combination of innovative solutions, top-tier craftsmanship, and unparalleled customer service. From the first consultation to project completion, we focus on clear communication, precise execution, and timely delivery, ensuring every step is handled with the utmost care and professionalism. We pride ourselves on being reliable, transparent, and passionate about what we do. Whether you're planning your dream home, upgrading your business space, or starting a large-scale project, we bring your vision to life with dedication and attention to detail. Let us make your construction experience smooth and successful. Reach out today to discuss how we can help with your next project!
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Rashid
No reviews yet
Extension Builder in Harrow, Greater London
Stanwell builder Professional Painter & Decorator 📍 Location: Heathrow London About Me I am a highly skilled and experienced painter and decorator, dedicated to transforming homes and commercial spaces with precision, creativity, and attention to detail. With 3 years of experience in the industry, I take pride in delivering high-quality finishes that enhance the beauty and value of every property. Whether you need a fresh coat of paint, wallpapering, or decorative finishes, I provide reliable and professional service tailored to your needs. Services Offered ✅ Interior & Exterior Painting ✅ Wallpapering & Feature Walls ✅ Wood & Metal Painting ✅ Plastering & Surface Preparation ✅ Commercial & Residential Decorating ✅ Color Consultation & Design Advice Why Choose Me? ✔ Quality Workmanship Guaranteed ✔ Attention to Detail & Precision ✔ Clean, Reliable & Professional Service ✔ Competitive Pricing & Free Quotes ✔ Customer Satisfaction is My Priority Let’s bring your vision to life! Contact me today for a free consultation and quote. Would you like to include social media links or a tagline?
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Kbs construction team ltd
No reviews yet
Extension Builder in Harrow, Greater London
We are providing all building work to our customers as loft conversion,side and rear extension work ,full house refurbishment ,kitchen and bathroom renovation.
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Sir groundwork ltd
No reviews yet
Extension Builder in Harrow, Greater London
All aspects of groundwork -driveway and patios paving&slabing -concrete foundations -fencing and turning -drainage/land drain -kerbs/edgings -block and beam -block work and brick work
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Solis Power Limited
Rating: 5 out of 5
Extension Builder in Harrow, Greater London
As a skilled kitchen and bathroom fitter with 15 years of experience, we bring a wealth of expertise to every project. Our in-depth knowledge of design, layout, and installation ensures exceptional craftsmanship and attention to detail. We excel in managing projects from start to finish, including precise measurements, assembly, and the seamless integration of fixtures, appliances, and finishes. In addition to your fitting expertise, we are a qualified NICEIC electrician, enabling you to handle all electrical installations and connections with full compliance to safety standards and regulations. This comprehensive skill set allows us to provide a seamless, one-stop service, minimizing the need for additional contractors and ensuring every project is completed efficiently and to the highest standard. Known for your reliability, professionalism, and excellent communication with clients, you have built a strong reputation for delivering functional, stylish, and high-quality kitchens and bathrooms tailored to meet your clients’ needs and preferences. Your commitment to perfection transforms spaces into beautiful, practical environments that stand the test of time.
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Latest review:
Kitchen Fitting- 14 Jan 2026
My initial experience with Solis Power Limited was Leo’s immediate response within 30 minutes, visited my property to view my kitchen. He gave a full detailed breakdown of price list that explains each work to be carried out. Suggested materials to use also help with the purchase. Leo and his team are perfect working together, cleaned after themselves each day. They installed new electrical unit, also introduced registered gas man to run gas pipes and also connect the gas hob. Plumbing work was excellent too. Leo also helped with the measurements of splashback and splash splatter guard. The work was carried out within five working days delay was due to shortage of splashback in the store. I highly recommend Leo and his team.
Construction work
No reviews yet
Extension Builder in Harrow, Greater London
I have excellent customer reviews. 10years of experience this field. I believe in quality and promises.
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Buckhurst Construction
Rating: 5 out of 5
Extension Builder in Harrow, Greater London
Check my Instagram for past and ongoing projects! @buckhurstconstruction Buckhurst Construction Ltd is a team of builders that specialise in new builds, renovations, restorations and extensions. Client satisfaction is one of our main priority’s so we take our due diligence seriously, we want to make sure we understand all the clients needs and desires for the project.
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Latest review:
Bricklaying- 2 Jun 2022
Superb job! Really happy. Done exactly as described and even a bit more here and there. Will also provided some really good tips on other jobs.
BHL Brickwork
No reviews yet
Extension Builder in Harrow, Greater London
BRICKLAYER Fully qualified nvq city & guilds since 2008 All work carried out to NHBC / LABC regs Neat and efficient References available Please call for any enquiries
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Coste + Beno
Rating: 5 out of 5
Extension Builder in Harrow, Greater London
Coste + Beno is an experienced construction business with a strong residential background. We pride ourselves on balancing architectural ingenuity with fine craftsmanship, to offer specialist services to discerning clients in the premium residential sphere. Our bespoke approach has seen us creating bijoux bathrooms in Shoreditch to managing full-scale renovations on listed residences in Primrose Hill. We are looking forward working with you. Best, Coste + Beno
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Latest review:
Architecture- 27 Nov 2017
I contacted Marius because he had good reviews and wanted someone reliable and capable so design a single story extension with large external and internal bifold doors. I wasn’t disappointed - Marius has been excellent throughout the whole design process and produced drawings to a high standard which met our requirements. Marius was an excellent communicator and always available to give advice when required. Further more, he went out of his way to contact local authorities regarding any questions I had at no extra cost to clarify any uncertainties. I would highly recommend his architectural services - he was good value and very professional.
Buildleader
Rating: 5 out of 5
Extension Builder in Harrow, Greater London
Our home refurbishment company BUILDLEADER is based in London. We offer full house renovation requiring extensive electrical, plumbing and structural work. All of our tradesman are professionals with over 15 years of experience who get the job done on time, on budget, and to the highest standard. We handle every project with the utmost competence and respect.
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Latest review:
Bathroom Fitting- 28 Mar 2022
Good plumber, call them in for shower replacement
Olimoon
No reviews yet
Extension Builder in Harrow, Greater London
All types of the bricklaying jobs
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EM Engineering Group Ltd
No reviews yet
Extension Builder in Harrow, Greater London
At EMA Structures, we specialise in groundworks, basements, and below-ground drainage, providing a seamless design and build service. Our team consists of qualified civil and structural engineers alongside experienced construction professionals, ensuring every project is completed to the highest standards of safety, efficiency, and durability. We handle everything from structural design and planning to the excavation, foundation works, drainage installation, and basement construction, delivering cost-effective and robust solutions tailored to each site’s unique conditions. Whether you require reinforced concrete structures, deep excavation support, or efficient water management systems, we offer engineering-led solutions that guarantee long-term performance. With a commitment to quality and compliance with UK Building Regulations, we work closely with clients, architects, and developers to ensure each project runs smoothly from start to finish. Get in touch with EMA Structures for expert groundworks, drainage, and basement construction solutions backed by engineering excellence and hands-on experience.
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K vision developments ltd
No reviews yet
Extension Builder in Harrow, Greater London
With over five years of hands-on experience across multiple trades, I provide reliable, high-quality workmanship for homes and businesses. I’m a fully trained locksmith, builder, extension builder, and plumber, offering a wide range of services from small repairs to large-scale property improvements. I specialise in emergency callout maintenance, delivering fast, efficient solutions when you need them most—whether it’s a locked door, a burst pipe, or urgent structural repairs. My approach is built on professionalism, clear communication, and a commitment to getting the job done right the first time. No matter the size of the project, I take pride in offering dependable service, honest advice, and craftsmanship you can trust.
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Britcore construction Ltd
New on MyBuilder
Extension Builder in Harrow, Greater London
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Shiv Builders
Rating: 5 out of 5
Extension Builder in Harrow, Greater London
Shiv Builders .We are professional .All aspects of building work. no matter its small or big job we take all kind of works Over 5 years of experience! -roofing ( new, repairs, replaces, alteration, gutter repair ) - plumbing, heating,new boiler, radiators, ventilation, drain repair - electrical ( new installation-certificate, fault finding, fuseboard ) -Extension - carpentry - bathrooms ( new, tiles repair) - kitchens (design/fitting/supplying) - damp problem - tiling - painting - and many more We try to advise clients in solving problems related to construction and avoiding them in the future. We do not do so-called quick works. We carry out all the work properly and reliably.
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Latest review:
Tiling- 25 Jul 2025
Shiv builders did the tiling for my bathroom. The quote was easy and done via a WhatsApp video. Price was reasonable. The job turned out to be more challenging than we first thought with uneven walls and floorboards were quite worn however they found solutions easily. The team arrived on time and did an excellent job. Always left the place tidy and very polite and professional. I then had a few additional jobs round the house such as changing door handles and fitting light pendants which they happily accommodated and again did a good job. Will definitely be using them for future work.

3.9

Top rated Extension Builders

Our Extension Builders in Harrow, Greater London, are rated 3.9 out of 5 based on 15 reviews from customers like you.

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What types of services are offered by local extension builders in Harrow, Greater London?

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 Harrow, Greater London 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 Harrow, Greater London who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Harrow, Greater London?

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

Find extension builders in Harrow, Greater London with MyBuilder

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

Step 2: Compare different extension builders in Harrow, Greater London

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

Step 3: Hire Harrow, Greater London extension builders with confidence

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

Harrow, Greater London extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Harrow, Greater London extension builder before hiring?

Before hiring an extension builder in Harrow, Greater London or extension building company in Harrow, Greater London, 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 Harrow, Greater London?

An extension builder in Harrow, Greater London 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 Harrow, Greater London 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 Harrow, Greater London?

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 Harrow, Greater London 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 Harrow, Greater London 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 Harrow, Greater London

Can an extension builder in Harrow, Greater London help with planning permission?

Yes, many extension builders in Harrow, Greater London 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 Harrow, Greater London handle everything from design to construction?

Many Harrow, Greater London 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 Harrow, Greater London help with materials and finishes?

Yes, most extension builders in Harrow, Greater London 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.