Extension Builders in Middlesex

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (18 reviews)

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

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 Middlesex

3142 Results

Sort by:

Coste + Beno
Rating: 5 out of 5
Extension Builder in Middlesex
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
Get in touch
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.
Building life uk limited
Rating: 4.8 out of 5
Extension Builder in Middlesex
My skills are :Tiling :brickwork :extensions :loft conversions :partition : painting :carpentry E.t.c :you name it we do it I've got a team together who are hard working men who are very motivated on working together with our clients we always keep everyone who we do work for happy and still get recommended I work references that I can provide (We haven’t been online at my builder over a year now but we have been working out from my builder we got lots of work to prove)
Get in touch
Latest review:
Bathroom Fitting- 9 Oct 2018
Ozay arrived on time and finish the job to a high standard I've used the shower for over a month now and no leaks! Would use again!
Multiarch building services ltd
No reviews yet
Extension Builder in Middlesex
Multiarch is a new company but the tradesman employed by us have over 10 years experience and fully qualified. We are fully insured and our structural work comes with a 10 years guarantee. We can provide references and fotos of our work upon request.
Get in touch
Guarded Properties
Rating: 4.7 out of 5
Extension Builder in Middlesex
All works covered by £1m Public Liability All Building Works New Builds Extensions Refurbishments Outbuildings Roofing Bricklaying Electrics Carpentry GRP Roofing Asbestos Roofs Flooring Fascias Guttering Plastering Tiling Painting Decorating Ground Works Patios & Paving Fencing Carpeting Liaising with Building Control & Planning Your one stop construction shop!! High quality works Competitively priced Will beat any formal quotation on like for like basis!
Get in touch
Latest review:
Extensions- 4 Jun 2022
Danny designed and built us a garden room to fit a challenging space at the bottom of our garden. His communication from start to finish was excellent, and he did an brilliant job on the room, inside and out. I would recommend Danny for any job, big or small.
BORUFI BUILDRES
No reviews yet
Extension Builder in Middlesex
NEW BUILDS LOFT CONVERSIONS EXTENSIONS FULL REFURB
Get in touch
Wooburn Project Management Ltd
Rating: 5 out of 5
Extension Builder in Middlesex
Our company is family owned and we work on all property types from small extensions to building new homes and refurbishments containing multiple units, we employ most of our people directly and have built a family atmosphere giving us more control on the program and our main subcontractors have worked with us for many years .
Get in touch
Latest review:
Extensions- 1 Sep 2021
I have nothing but praise for Michael and his team. The project was managed exceptionally well and Michael kept us apprised of progress, emerging issues (which were dealt with quickly and with some innovative thinking) and he was honest and candid with our choice of kitchen tile (I think his words were do you want to rethink that colour!). Michael quoted in Nov and started work in the Spring (late Mar) and held his price despite a national increase in the price of materials and reduced availability which he managed admirably. Obviously a man with a good eye; his suggestions for additional works were inspired and they have resulted in a high quality finish. Finally, it is worth mentioning the team who did the grafting! Very industrious, skilled, polite and helpful. Highly recommend Wooburn PM to anyone considering building work. :-)
NA Builders Ltd
No reviews yet
Extension Builder in Middlesex
NA Builders LTD is a reliable and professional building company providing high-quality construction and renovation services. We take pride in delivering excellent workmanship, clear communication, and projects completed on time and within budget. With strong experience in the building trade, we specialise in a wide range of services including extensions, renovations, structural work, brickwork, plastering, and general building projects. No job is too big or too small – we give every project the same level of care and attention to detail. Customer satisfaction is at the heart of what we do. We work closely with our clients to understand their needs, offer honest advice, and ensure the finished result meets their expectations. Our team is hardworking, respectful, and committed to keeping sites clean and safe at all times. If you are looking for a trustworthy builder who values quality, reliability, and professionalism, NA Builders LTD is here to help.
Get in touch
Quote Builders Ltd
Rating: 5 out of 5
Extension Builder in Middlesex
We specialise in residential and commercial construction, refurbishment and restoration. We also provide handyman and access solutions. We have a team of 12 CIS registered and qualified workers. We work on excellence and look to provide homeowners and commercial business owners the best job possible up to building regulations standards every time at a very competitive price. Based in the southeast region we look to target South East England.
Get in touch
Latest review:
James and his team of builders (quote Builders) gutted and fitted our bathroom. James helped us to choose fixtures and fittings ( which we were grateful for especially as the recomended shower we chose is AMAZING ) We were extremely impressed with his workmanship and found him and his team to be very professional, reliable and punctual. We have received great comments when family and friends visit and see our new bathroom, and we have recommended quote Builders to them. Thank you James and his team. Definitely using them to remodel our kitchen.
ElioLandsceping and metal
New on MyBuilder
Extension Builder in Middlesex
we have 10 experience on the building job
Get in touch
Eco unique construction LTD
No reviews yet
Extension Builder in Middlesex
, I'm Leo the owner of Eco Unique Construction. With over 10 years of dedicated experience in the construction industry, I specialize in the structural phase of projects, from initial demolition and groundworks to building walls and finishing with professional skimming. Based in London, I have a passion for high-quality, reliable work and a keen eye for detail. I'm fully insured and committed to providing a transparent and excellent service. I look forward to helping you with your next construction project."
Get in touch
GDR construction solution ltd
Rating: 5 out of 5
Extension Builder in Middlesex
GDR Construction Solution Ltd provides a wide range of construction, repair, and improvement services for residential customers. and there is no project too big or small for our team. We are dedicated to delivering superior results at affordable prices,
Get in touch
Latest review:
He done loft conversion which he did a great job. Completed it in 6 months which in 2 months less agreement. He kept it well done tidy. He done what we had asked to do and completed on. He had a good customer service easy to contact and sort out any issue. I would recommend him to anyone for his work.
Fm building contractors ltd
Rating: 5 out of 5
Extension Builder in Middlesex
FM Building Contractors Ltd is London based builders HOME EXTENSIONS PROFESSIONAL BUILDING & BRICKWORK SERVICES Providing a range of building services from walls and block paving, extensions and conversions to complete new builds, we only work with highly trusted and experienced tradesmen registered with the appropriate bodies. FM Building Contractors Ltd is proud to have earned a reputation for fast and efficient turnaround, reliability, transparency and professionalism.
Get in touch
Latest review:
Groundwork & Foundations- 19 Jul 2024
Great job very efficient will consider for further larger projects
Abazaba Ltd
No reviews yet
Extension Builder in Middlesex
Main contractor working on new builds, extensions and conversions.
Get in touch
TR54MRS CONSTRUCTION
New on MyBuilder
Extension Builder in Middlesex
TR54MRS Home Transformations – Transforming Dreams Into Reality At TR54MRS, we specialise in premium home renovations, creating beautiful and functional living spaces that add value and comfort to your property. Based in London, we provide expert kitchen renovations, bathroom installations, full property refurbishments, extensions, and general building services. Our mission is simple: to transform your ideas into reality through quality workmanship, reliable service, and attention to every detail. Whether you’re modernising a kitchen, creating a luxury bathroom, or renovating an entire property, we work closely with our clients from concept to completion to ensure exceptional results. With a commitment to professionalism, transparency, and customer satisfaction, TR54MRS Home Transformations is dedicated to delivering projects that exceed expectations. Our Services ✔ Kitchen Renovations ✔ Bathroom Installations ✔ Full Home Refurbishments ✔ Property Renovations ✔ Extensions ✔ Flooring & Tiling ✔ Painting & Decorating ✔ General Building Works
Get in touch
2bros brick genius
No reviews yet
Extension Builder in Middlesex
Hi my name is Dio. I got 5 years experience of doing brick work I can do small jobs like garnden walls to bigger jobs like extensions and houses I always work safely I don’t mind talking and explain to customers anything they want to know before and during the work .
Get in touch
MD Property
No reviews yet
Extension Builder in Middlesex
Welcome to our profile MD Property is a well established landscaping & building firm. We cover an array of services from laying some turf to multi storey extensions & loft conversions. We love what we do and wouldn’t change it for anything! the pride, joy & sense of self accomplishment we have in all our work sets us apart from the rest! We put the customer at the forefront of our business as they are the people that really matter. Thank you for looking at our profile, we hope to see you soon.
Get in touch

4.1

Top rated Extension Builders

Our Extension Builders in Middlesex, are rated 4.1 out of 5 based on 18 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 Middlesex?

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

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

What are the hourly rates of extension builders in Middlesex?

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

Find extension builders in Middlesex with MyBuilder

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

Step 2: Compare different extension builders in Middlesex

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

Step 3: Hire Middlesex extension builders with confidence

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

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

What to ask a Middlesex extension builder before hiring?

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

An extension builder in Middlesex 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 Middlesex 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 Middlesex?

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 Middlesex 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 Middlesex 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 Middlesex

Can an extension builder in Middlesex help with planning permission?

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

Many Middlesex 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 Middlesex help with materials and finishes?

Yes, most extension builders in Middlesex 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.