Extension builders in Harrow

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.4 (14 reviews)

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Some of our top rated extension builders in Harrow

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Boris
No reviews yet
Extension Builder in Harrow
We do all jobs necessary, from full refurbs to plumbing works to building your house ground up and gardening needs too.We have a professional team of skilled workers in this domain and always deliver. We finish all jobs on time and we pride ourselves on the quality that we provide.
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Building outfitters ltd
No reviews yet
Extension Builder in Harrow
Hi my company is building outfitters Ltd. I m working in all over London and out of London area. I m specialist in loft conversion,extension ,electrical,plumbing,new build house ,bathroom and kitchen installation ,bespoke bedroom. Driveway,fencing. Skimming and rendering,painting and decorating.
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WHG Consultancy Ltd
Rating: 5 out of 5
Extension Builder in Harrow
Award winning builders in South West and Central London. We offer a complete range of design and build services for residential and commercial customers include new build developments, renovations, refurbishments, reconfigurations, extensions, bathroom and kitchen fitting, as well as bespoke carpentry, joinery and electrical work. We think your property is as individual as you are and help you to achieve your ideal home through our highly skilled & experienced team of designers and builders.
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Latest review:
Restoration & Refurbishment- 28 Dec 2015
I did quite a bit of research before choosing Battersea Builders. They didn’t come in with the cheapest quote but I never base my choice on price alone. And it wasn’t miles above the other quotes I got. Instead, I chose them because they ticked a lot of boxes including a) good independent reviews, b) a dedicated PM, c) qualifications, d) quick responses, e) a decent website etc. Overall, they did a fantastic job. The quality of the work and finish is really good. The PM, Tommy, was really helpful throughout and the team was very polite and conscientious. They were also on site every day as promised and didn’t play that old builders trick of getting the job and then going offsite to secure another job elsewhere (resulting in the deadline being missed). Was it perfect? No, but then not many projects are. I have a few minor comments including the fact there was a misunderstanding about the quality of bathroom cupboard I needed so the original quote was insufficient and costs had to be increased half way through the project. Despite this issue, Tommy did his best to keep the extra costs down. One other niggle was that I asked them to keep all the manuals and instructions for all the fittings but they threw them out. Not a big deal but quite annoying. Overall, it wasn’t cheap but I would use them again because the work was done to a high standard and the team were a pleasure to work with.
UNIQUE ROOFING AND RENOVATIONS LTD
No reviews yet
Extension Builder in Harrow
Been doing construction for over 25 years. Work includes starting from foundation up to building a house, we do it all, you just name it.
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Build Geroge
No reviews yet
Extension Builder in Harrow
I am an all round tradesman, electrician and plumber and handyman. I have over 30 years experience and my team are very well experienced too. We are happy to take on any job.
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GURVINDER CONSTRUCTION LTD
No reviews yet
Extension Builder in Harrow
Welcome to Guru Constructions – Painter & Decorator At Guru Constructions, we bring colour and character to your spaces. With years of hands-on experience in painting and decorating, we take pride in delivering high-quality finishes that transform homes and businesses across Greater London. Whether you're refreshing a single room or planning a complete makeover, we offer reliable, clean, and detail-focused services tailored to your needs. From precise interior painting to eye-catching exterior work and expert decorative finishes, we’re here to make your vision a reality. Your satisfaction is our top priority – expect professionalism, honest pricing, and a flawless finish every time. Let’s create something beautiful together. Contact us today for a free quote!
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fedora and sons
Rating: 4.4 out of 5
Extension Builder in Harrow
I have started working for myself in Europe for 10 years, came over to England with my family and have been working here for 11 years getting business from word of mouth. In my business I manage lots of sub contractors covering a wide range of trades which I have experience in too.
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Latest review:
Painting & Decorating- 24 Feb 2020
Quite literally the worst tradesman I have ever worked within 25 years as a property developer! He came and quoted to paint my house (a good price I must say), little did I know that this meant he would spray everything that he can see, not prepare the surfaces by sanding them down or protects things. This included door handles, hinges, radiators, alarms sensors, tiles and my own furniture and cooking utensils. First time I confronted him about this he said that we would clean everything, and we agreed to carry own. However, it became apparent that we was doing the same as previously discussed. have paid hi 66% of what was agreed, I quickly realised that the damaged he has caused was going to cost me far more and I told him to leave. The next day he turned up at my house with his wife demanding the balance which I refused to give him, they were both shouting outside my house, threatening to call the police. I eventually agreed to pay the 50% of what was left, just so that they would leave. However, even once he had confirmed writing his acceptance of this, he walks over to me and threatened me one final time, saying that he will take me to court etc, there is god and he will see to me! I advise to stay away from this person, better to pay a little more and work with professionals who don't agree with one thing and do another. He paints using a spray, which means you can not touch anything up and he quite literally paints everything he sees!!
Hsingh builders ltd
No reviews yet
Extension Builder in Harrow
I am professional builder with an experience of 17 years in the building industry and track record of successful projects . I am committed to deliver high standard of quality work which is completed on agreed time scale within the given budget. Starting from beginning till end, customers satisfaction is my priority , which is why I am able to turn visions into reality. You can really on us as our core values are- strong foundations, beautiful designs and lasting value. My vision as a builder is to build the dream house for my customers, so you can trust us in bringing architectural visions to life. You can rely us on as we do cater the needs of our customers, provide attention to every aspect and complete the work to high standards. We do discuss each step of the work with the customer and build a long lasting relationship with customers.
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Gary prime
Rating: 4.5 out of 5
Extension Builder in Harrow
I have been actively involved in the construction industry for the past seven years, during this time I have gained experience in ground works, bricklaying and a variety of other trades and in the last two years I have been working in a supervisory role. I have worked on large construction sites as well as carrying out works on property refurbishments.
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Latest review:
Groundwork & Foundations- 14 Aug 2019
Gary did an excellent job on the drainage, everything I asked of him. He was punctual and polite, wouldn't hesitate to hire him again.
Building&Maintaining
No reviews yet
Extension Builder in Harrow
All types of groundworks, plus repairing,painting and decorating properties.
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j s brickwork
No reviews yet
Extension Builder in Harrow
( J S speedybrickwork) Hi it’s brickwork company Can do all sort of brickwork ,block-work ,stone ,masonary My prices are normal and give you best quality of work. Always on time job Just give me a call for any free quotation - Any other building work also undertaken Roofing ,bathroom , painting
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Properties Concierge
No reviews yet
Extension Builder in Harrow
At Properties Concierge, we turn your vision into reality, whether it’s a dream home renovation or a commercial space transformation. Based in London but available to work anywhere, we bring over 5+ years of experience to every project. We handle everything from electrical and plumbing works, extensions, loft conversions, side extensions, boiler installations, to bathroom renovations, kitchen fitting and supply, and windows fitting and supply – all at unbeatable prices. We also offer free project management (depending on the project) to ensure your build runs smoothly. Our expert team is committed to honest, reliable, and high-quality craftsmanship, delivering exceptional service and seamless project management from start to finish. Let’s build something amazing together get in touch with us.
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MN Building Solutions
No reviews yet
Extension Builder in Harrow
We are company with over 15 years of experience in construction industry. We provide exceptional services and high-end residential refurbishment. Our qualified team undertake projects around London. The type of work we undertake includes: - Extensions - Loft conversions - Plumbing and Electrical Services - Kitchen and Bathroom refurbishment - Carpentry - Painting and Decorating
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ResidentDevelopments
Rating: 5 out of 5
Extension Builder in Harrow
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.
T bros design and build
No reviews yet
Extension Builder in Harrow
My company is providing good work in any field and we cover all area and we finish work quickly
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Robert
No reviews yet
Extension Builder in Harrow
I am an experienced construction worker based in Ealing Broadway, London, with 25 years in the industry. I specialize in complete bathroom installations and tiling, including preparation, waterproofing, fitting sanitary fixtures, and high-quality finishing. I am reliable, punctual, and focused on delivering durable, precise work that meets clients’ expectations.
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4.4

Top rated Extension Builders

Our Extension Builders in Harrow, are rated 4.4 out of 5 based on 14 reviews from customers like you.

Quality screening

Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

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

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 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 who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Harrow?

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

Find extension builders in Harrow with MyBuilder

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

Step 2: Compare different extension builders in Harrow

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

Step 3: Hire Harrow extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Harrow, 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 extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Harrow extension builder before hiring?

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

An extension builder in Harrow 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 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?

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 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 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

Can an extension builder in Harrow help with planning permission?

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

Many Harrow 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 help with materials and finishes?

Yes, most extension builders in Harrow 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.