Extension Builders in Mill Hill

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

Easily find verified Mill Hill Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in Mill Hill.

Select a service

How it works

Post your job for free

Tell us about your job, and we’ll alert suitable tradespeople in your area. It’s simple and free.

Tradespeople respond

Once your job is posted, you’ll get responses from interested tradespeople through the website.

Review profiles and choose

Browse profiles, work history, and feedback, then choose who you wish to share your details with.

Some of our top rated extension builders in Mill Hill

3208 Results

Sort by:

Sfg constructions
No reviews yet
Extension Builder in Mill Hill
Hi, I’m a reliable and hardworking individual with experience in kitchen fittings, floorings, bathroom fitting, loft conversions, . I’m passionate about providing excellent service and always go the extra mile to ensure customer satisfaction. I’m punctual, detail-oriented, and take pride in doing the job right the first time. Whether it’s delivering with care or handling tasks efficiently, I’m here to help make your day easier.
Get in touch
DRYPSIAK
No reviews yet
Extension Builder in Mill Hill
Hi! My name is Viktor. My team and I are professional carpenters with over 7 years of experience in construction. We have received many great reviews from our customers. We specialize in both first and second fix carpentry, as well as any kind of woodwork. We take pride in delivering high-quality craftsmanship, always meeting deadlines and ensuring customer satisfaction. Whether it’s framing, flooring, doors, windows, or custom woodwork, we approach every project with precision and attention to detail. No job is too big or too small — we’re ready to help bring your vision to life.
Get in touch
J&m
New on MyBuilder
Extension Builder in Mill Hill
I do all build work
Get in touch
Mat's Group Limited
No reviews yet
Extension Builder in Mill Hill
Mat’s Group Ltd is an experienced construction and refurbishment contractor delivering high-quality residential and light commercial projects across London and the South East. We specialise in extensions, loft conversions, structural alterations, full refurbishments, and new build developments. Our team combines practical site expertise with strong project management, ensuring works are delivered safely, on time, and within budget. We regularly undertake structural works including foundation construction, steel installations (RSJs), underpinning, roofing, and complete internal fit-outs. As a Principal Contractor, we operate in full compliance with CDM 2015, maintaining high standards of health and safety, workmanship, and communication throughout every project. We pride ourselves on reliability, transparent pricing, and attention to detail. From small residential improvements to larger developments, we work closely with clients to achieve quality results with minimal disruption. Mat’s Group Ltd – Building with confidence.
Get in touch
we made ur dream limited
No reviews yet
Extension Builder in Mill Hill
Trust Work quality
Get in touch
Boulter Solutions
No reviews yet
Extension Builder in Mill Hill
Small business operating out of East London, no job too big or too small
Get in touch
K&L Fixing Ltd
No reviews yet
Extension Builder in Mill Hill
Hello I’can offer any type of refurbishment Loft conversion,side extension Kitchen,bathroom,laminate,painting
Get in touch
Bpm Contractors Ltd
No reviews yet
Extension Builder in Mill Hill
BPM contractors are a reputable company, known for our cost-effective prices. Our company offers both competitive pricing and flexibility to the needs of our customers. Some of our services include:General Maintenance,Refurbishment,PlumbingElectrical,Painting,Decorating,Carpentry,Flooring,Windows.
Get in touch
JBP Developments Ltd
No reviews yet
Extension Builder in Mill Hill
1. Surveys - Offering drone and Matterport surveys for planning applications and marketing purposes 2. Architectural Services - Providing drawings for pre-app and planning submissions. 3. Project Management - Managing multiple consultants, sub-contractors, and statutory authorities at any stage of the construction process. 4. Design and Build
Get in touch
Dana Business Group LTD
No reviews yet
Extension Builder in Mill Hill
Dana Business Group Ltd – Property Renovation, Extensions & Loft Conversions Dana Business Group Ltd provides professional renovation, construction, and repair services for houses and apartments. We undertake projects of any size, from small repairs to full refurbishments, house extensions, and loft conversions. Our services include: * Full and partial property renovations * House extensions and structural works * Loft conversions * Kitchen and bathroom fitting * Plumbing services * Electrical works * Painting and decorating * Flooring installation * Plastering and drywall * General maintenance and repairs We guarantee high-quality workmanship, reliable service, and strong attention to detail. Free quotes available. Competitive prices. Flexible scheduling.
Get in touch
Bright star construction Ltd.
No reviews yet
Extension Builder in Mill Hill
Hi there we are in construction industry 🏘️🏠from 13 years. We believe in quality and customer satisfaction. 🏗️
Get in touch
Sher group of builders Ltd
No reviews yet
Extension Builder in Mill Hill
Hi everyone, Please get in touch for reasonable quotation : ( SHER GROUP OF BUILDERS LTD) Company no : 12538248 Based in Hayes (west London) Loft conversion, extension, new build home, Complete home renovation,bathroom,kitchen Electrical,plumbing, All building work undertaken
Get in touch
pro hammer
No reviews yet
Extension Builder in Mill Hill
We are London based construction company we do all kind of building jobs like loft conversion, house extensions and new builds, we have 7 year experience in trade. We have received several reviews from other websites on our performance on their builds. Our company is new to "my builders" and we are looking forward to work with you if you choose our company to achieve your needs. We are open to critical criticism to allow us to improve and meet the needs of the peoples wishes.
Get in touch
Armadillo Contractors
No reviews yet
Extension Builder in Mill Hill
Welcome to Armadillo Contractors! We are a privately-owned construction company offering carpentry and building solutions from start to finish. With over 30 years of experience in the industry, we are specialists in all aspects of general building and carpentry related works, extensions, conversions and decorating for both private and commercial clients.
Get in touch
BUILD SAFE LTD
Rating: 5 out of 5
Extension Builder in Mill Hill
Hello, We are Build Safe ltd-professional Construction Company 20 years of experience. We are proud members of Federation of Master Builders! Providing a wide range of services: Design, planning, Structural calculations, all aspects of Building works- New builds , Extensions, Loft conversions, kitchen and bathroom fitting, Window installation,refurbishments, electrical, plumbing etc. 10 years warranty and, 1m public, 5m employers liability and 1 million indemnity insurance. Please get in contact for a free quote. Thank you! Build Safe ltd
Get in touch
Latest review:
Very professional. We had quite a lot of work done. It was done in time as promised, and with great attention to detail and quality. Very happy with the results. Highly recommended.
Multitown Construction ltd
No reviews yet
Extension Builder in Mill Hill
Been building for 63 years came from bid construction in 1999 into domestic work have done many big jobs all my people are multi trade and we do every job from start to finish we never leave till it is complete
Get in touch

3.9

Top rated Extension Builders

Our Extension Builders in Mill Hill, are rated 3.9 out of 5 based on 16 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 Mill Hill?

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 Mill Hill 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 Mill Hill who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Mill Hill?

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

Find extension builders in Mill Hill with MyBuilder

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

Step 2: Compare different extension builders in Mill Hill

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

Step 3: Hire Mill Hill extension builders with confidence

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

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

What to ask a Mill Hill extension builder before hiring?

Before hiring an extension builder in Mill Hill or extension building company in Mill Hill, 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 Mill Hill?

An extension builder in Mill Hill 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 Mill Hill 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 Mill Hill?

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 Mill Hill 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 Mill Hill 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 Mill Hill

Can an extension builder in Mill Hill help with planning permission?

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

Many Mill Hill 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 Mill Hill help with materials and finishes?

Yes, most extension builders in Mill Hill 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.