Extension Builders in Harefield

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 Harefield

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growchance com ltd
No reviews yet
Extension Builder in Harefield
Home Renovation & Structural Alterations in London. Growchance carries out home renovations, extensions and structural alterations for London homeowners who want the building work, specialist trades and final finishes delivered under one clear scope. Depending on the property and agreed brief, the work may include structural alterations, house extensions, loft conversions, kitchens, bathrooms, electrical and plumbing work, plastering, flooring, carpentry and decoration.
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Julianbeshi
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Extension Builder in Harefield
Julian beshi
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Rizwan Latif
No reviews yet
Extension Builder in Harefield
Hi, I’m a friendly and reliable painter and decorator with plenty of experience working on homes. I take pride in providing a clean, high-quality finish and making sure every customer is happy with the result. From walls, ceilings, and woodwork to full room makeovers, I always work carefully and with attention to detail. I’m tidy, respectful, and treat every home as if it were my own. Whether you already have paint or need advice on products and colours, I’m happy to help and make sure the job is done to a great standard from start to finish
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Art Building and Interiors Ltd
No reviews yet
Extension Builder in Harefield
Hi! My name is Daniel, and I'm a multi-trade builder with a passion for all construction work and over 16 years of experience.
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Jackson construction
No reviews yet
Extension Builder in Harefield
I’m a general building company we do complete extensions, kitchens, bathrooms and carpentry, Patios and driveways
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Bespoke Builds by JFN
No reviews yet
Extension Builder in Harefield
Bespoke Builds by JFN delivers comprehensive building and home improvement services, specialising in loft conversions, home extensions, kitchens, and bathrooms. From full renovations to day-to-day maintenance and carpentry, we manage projects with precision, transparency, and a commitment to exceptional workmanship. We take pride in delivering reliable service, smooth project management, and quality finishes designed to stand the test of time. Your space, built better
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Continental Master Builders Ltd
No reviews yet
Extension Builder in Harefield
We’re Continental Master Builders Ltd. family Building Company sets up in June 2005 but we’ve been in building trades since 1998. We specialise in all types of house extensions and alterations, basement excavation and high spect interiors. We can also help with small repairs and emergency repairs around your property.
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JOHNSON CONSTRUCTION AND BUILDING LTD
Rating: 5 out of 5
Extension Builder in Harefield
JOHNSON CONSTRUCTION AND BUILDING LTD is a family run business for over 30 years. We undertake all aspects of construction from minor repairs, kitchens, bathrooms, extensions and new builds. We also specialise in loft conversions, basement conversions, steel fabrications, hard landscaping and civil works. The company employs 4 people directly and have fully sign written vans for transportation. We have full employers and public liability cover.
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Latest review:
Conversions - General- 30 Aug 2021
Five star. Highly recommended. Tim and team undertook the garage conversion, conservatory install and garden landscaping. Work was done to the highest quality, on time and on budget. Great communication, professional and friendly throughout. Highly recommended.
M.R.Building
Rating: 4.1 out of 5
Extension Builder in Harefield
We are team of professional builders from Croydon, Surrey. We always work hard and unless client are pleased. Our knowledge and planning giving you real savings without compromise on quality. Projects are always done to top quality and on time..
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Latest review:
Extensions- 15 Nov 2017
NEVER USE Got on well at the start - worked very hard with all his team and we were very please with progress until he went on holiday and haven't been able to contact him since beginning of August. We have been left with no end of problems including basicially re-wiring all of what we had paid for, 2 fireplaces not working, patio and drive not finished and all paid for
Kasa
Rating: 5 out of 5
Extension Builder in Harefield
Kasa Building services , it’s proud to offer a wide range of services from new build to loft&extensions , refurbishments , plumbing and electric,carpentry and loads more … With as quality matters
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Latest review:
Plumbing- 3 Apr 2023
Kasa was absolutely fantastic, nothing was too much hassle as we had to make changes during the job. We have now found a plumber, we can use on all future projects. Big thank you Kasa from myself and Aiste.
Christopher foot
No reviews yet
Extension Builder in Harefield
Hi there my name is Chris I have previously been working for a company doing house extensions, loft conventions, house renovations and more. Though my years working with multiple of different trade I have become skilled in multiple of different areas.
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BrownBricks Construction
No reviews yet
Extension Builder in Harefield
"Welcome to Brown Bricks Constructions, your local builders with a witty touch! From painting and decorating to handyman work and everything needed within the house, we've got you covered. With our skilled craftsmen and friendly approach, we turn your house into a home. No task is too big or small for us – whether it's fixing a leaky faucet or transforming your space with a fresh coat of paint, we handle it all with precision and flair. Trust Brown Bricks Constructions for quality workmanship, attention to detail, and a touch of local charm. Let's build something wonderful together!"
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Shakers Studio; Art & Interior Design Company Ltd
No reviews yet
Extension Builder in Harefield
With 30 years of experience in the industry, Shakers Design is ready to deliver exceptional interior design and refurbishment solutions. From conceptualization to completion, we handle every aspect of your project, ensuring a seamless and stress-free experience. We provide services such as interior design, planning permission and building regulations approval, total and partial refurbishment, renovation, loft conversions and extension, change of use residential and commercial design, construction. Why not take a look at our portfolio photos and contact us today for a free consultation to discuss your project.
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A.K construction
No reviews yet
Extension Builder in Harefield
Hi i am skilled builder I doo all jobs Extension Loft Electric Plumbing Fencing Carpentry
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Trace Design & Build Ltd
No reviews yet
Extension Builder in Harefield
Trace Design & Build Ltd are a chartered RIBA architects practice and construction company that offer a full and comprehensive design and build service. We are also a GasSafe registered company offering central heating and boiler installation, service and breakdown repairs. We have an in house team of operatives covering all aspects of building work, project management and maintenance.
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Stevenmcfaddenandson
No reviews yet
Extension Builder in Harefield
Hi my name is Steven I’ve been in construction since Ive over 20 years work experience . I have many trades under my belt /Groundwork/ landscaping/ Building basements/ Carpentry /Roofing/ Reinforced concrete and form work .With work to a high standard and professional working environment
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3.9

Top rated Extension Builders

Our Extension Builders in Harefield, 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 Harefield?

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

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

What are the hourly rates of extension builders in Harefield?

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

Find extension builders in Harefield with MyBuilder

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

Step 2: Compare different extension builders in Harefield

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

Step 3: Hire Harefield extension builders with confidence

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

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

What to ask a Harefield extension builder before hiring?

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

An extension builder in Harefield 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 Harefield 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 Harefield?

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 Harefield 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 Harefield 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 Harefield

Can an extension builder in Harefield help with planning permission?

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

Many Harefield 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 Harefield help with materials and finishes?

Yes, most extension builders in Harefield 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.