Extension Builders in Harefield

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (16 reviews)

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Some of our top rated extension builders in Harefield

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Somnath
No reviews yet
Extension Builder in Harefield
Your trusted specialists for all demolition, renovation, and new build projects. Whether you’re looking to safely demolish a structure, renovate your property, or construct a brand-new home, we provide expert services with safety, efficiency, and quality workmanship at the forefront. We handle every project with care, ensuring compliance with all regulations and environmental standards, leaving your site safe, clean, and ready for the next stage.
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GRD HOME IMPROVMENTS LTD
No reviews yet
Extension Builder in Harefield
Our company is a private limited company, we have over 5 years of experiance in all building works. We do all building works from loft convertion to plastering, kitchens and bedrooms, renovations and electrial etc. We have done many jobs from big to small, we have brilliant customer job reviews for all jobs done and have never let any customers down. Before starting any jobs we always sign a contract and make everything clear with the customer about the work that needs to be done and what we will provide and what the customer will have to provide. We are willing to travel 30/40 miles to work from our destination.
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Ps construction company
No reviews yet
Extension Builder in Harefield
We are good in our work
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b & N Tradind and Contracting
No reviews yet
Extension Builder in Harefield
Building work, new build, extensions,loft conversion and all types of building work
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SRK Building Solutions Ltd
No reviews yet
Extension Builder in Harefield
At SRK Building Solutions we pride ourselves on high quality workmanship with a passion for getting the job completed to the highest standard. We provide a wide range of building solutions with free quotes / estimates & friendly professional advice. At SRK Building Solutions we pride ourselves on high quality workmanship with a passion for getting the job completed to the highest standard. We provide a wide range of building solutions with free quotes / estimates & friendly professional advice. We specialise in the following areas: - New Builds - Single & Double storey Extensions - Loft Conversions - Kitchen & Bathroom renovations - Plastering - Painting & Deco - Commercial Maintenance - Planning Applications We look forward to working with you.
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Faton
No reviews yet
Extension Builder in Harefield
Trust and honest
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Ferati
No reviews yet
Extension Builder in Harefield
Transform Your Space with Professional Drylining Services Looking to enhance your interiors with expert drylining? Our skilled team delivers top-notch drylining solutions tailored to your needs. Whether it's for residential or commercial projects, we ensure high-quality finishes that stand the test of time!!
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London Brickwork and Paving Ltd
No reviews yet
Extension Builder in Harefield
We are a London based construction company with over 16 years experience in the industry that specialise in all aspects of Brickwork and Paving, carrying out work on both domestic and commercial properties. Our objective is to help turn your visions into reality
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Adds Construction ltd
No reviews yet
Extension Builder in Harefield
I work in building general construction E.g. landscaping, plastering, plumbing, carpeting, fixer My company name: ADDS CONSTRUCTION
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H&V carpentry joinery ltd
No reviews yet
Extension Builder in Harefield
Refurbishments, extensions, Landscaping
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Proactive creations ltd
No reviews yet
Extension Builder in Harefield
Proactive creations ltd gives excellent service to our customers.Whatever we promise we deliver with excellent quality . Our dedicated team is very professional & customer oriented.
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imperial Brickwork contractors ltd
No reviews yet
Extension Builder in Harefield
All type building work . New build, houses and flats and extensions from foundation to top roof finish a. Brickwork and block work and all internal work. We are undertaking.
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MYCO Contractors Limited
Rating: 5 out of 5
Extension Builder in Harefield
I am an experienced and fully insured builder. On average I and my team build and renovate 5 extensions per year. Our current or old clients are always ready to share positive feedback about our work. We work off the ready plans which are usually prepared by the clients themselves and approved by the local authority. As of now (30/03/2023) my availability to start the new project is late April or early May. Please get in touch and I will be happy to assist.
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Latest review:
Extensions- 4 Aug 2020
On a cold November evening, Tony and his team turned up to provide a quote and within a week this was received. The quoted price came in the middle of the pile, which was a good start and aligned closely to the ballpark figure I'd received from a friend who was also in the trade. We then visited a site they were finishing off, and Tony had the confidence to ask us to speak to the client without him there and they gave us the confidence to proceed. They started in January 2020 and rapidly moved through the works and engaged closely with my architect, Structural engineer and building control and proceeded based on their recommendations strictly. We lived in the property as build progressed and the team ensured that the site was secure every evening and we were safe. As COVID-19 hit and we went into Lockdown, the team continued to come and work (we were separated from them as the house was boarded up) and the only challenge was getting supplies. Tony scoured all over London, picking up items as best as he could and work continued. Once they'd broken through into the old part of the house they continued to progress rapidly and showed utter professionalism. The team lead's attention to detail is impressive, and he gave great recommendations on what would be the right approach when we were laying out features such as window sizing and lighting. The standard of work is excellent and I would highly recommend them.
Saker Stone Ltd
Rating: 5 out of 5
Extension Builder in Harefield
Company SAKER STONE - 14150502 SAKER STONE Supply & Fit, our branch located on Hamilton Road, Manchester, M13 0PE. Started business as parternership in 2007, we grown our portfolio from 2 houses to 73 units today, we also helped over 100 homeowners and over 50 landlords including housing association, we help from a full consultancy package to build your dreams to even help with leasing to our corporate contacts if you wish to invest. featured on SAKER STONE, we pride our selves in job well done, we always make sure we start projects within 1 week from time we agree and we always deliver our projects on time; we make the impossible a luxury and affordable possible while we take all the stress away; SAKER STONE combines technical expertise with exceptional customer service, ensuring every client benefits from cutting-edge technologies tailored to their home needs. with industry leading certifications and proven track record, SAKER STONE is a top choice for those seeking efficient, reliable and successful renovations.
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Latest review:
Extensions- 2 Jun 2026
Jot not started yet but excellent customer service so far, plenty of time dedicated to understand our needs and budget. Professional and friendly manner. Looking forward to what’s next
Haxhia Ltd
No reviews yet
Extension Builder in Harefield
Haxhia Construction - High Quality Construction - Delivering bespoke new build and renovation construction projects
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Amneet singh
No reviews yet
Extension Builder in Harefield
We handle everything from planning to finishing, using skilled trades and quality materials. Your extension will be safe, compliant, and exactly how you envisioned it—on time and on budget.”
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3.9

Top rated Extension Builders

Our Extension Builders in Harefield, are rated 3.9 out of 5 based on 16 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.