Extension Builders in Harlow

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

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

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 Harlow

1736 Results

Sort by:

FS CONSTRUCTION DESIGN
No reviews yet
Extension Builder in Harlow
We are a professional and reliable team with experience. Our team offer a wide variety of affordable property maintenance throughout London. We specialise in: * Loft conversions * Extension * Carpentry * Bathroom instalment * Door Lock * Electrician work * Furniture instalment/fitting * Gardening * House renovation * Flooring * Painting * Plastering * Plumbing * Roof work (leakage etc) * Tiling fittings * Wallpaper
Get in touch
Highpoint roofing and building contractors
Rating: 5 out of 5
Extension Builder in Harlow
At Highpoint roofing and building contractors we have over 40 years of experience Collectively, we take pride in our work to ensure 100% customer satisfaction With our free no obligation quotation you will be given all the advice you need to ensure total piece of mind our goal is to meet and exceed expectations of every customer all work carried out to the highest Possible standards and at very competitive prices
Get in touch
Latest review:
Roofing (Flat)- 6 Jan 2026
Completed the job as promised and was very tidy in his job
Bespoke Builds by JFN
No reviews yet
Extension Builder in Harlow
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
Get in touch
Creedmoor Construction ltd
Rating: 5 out of 5
Extension Builder in Harlow
Family run business with over 50 years combined experience in domestic and commercial projects All aspects of works undertaken with a portfolio of previous works and references to give piece of mind to perspective clients… Our aim is to make you dream project a reality
Get in touch
Latest review:
We employed Nicky to install our kitchen, splashback and worktops. Nicky and his brother Liam were punctual, polite, tidy and most importantly their work was excellent. Having mentioned we were after a media unit in the front room, Nicky suggested they could make something bespoke for us and we trusted them to do it and what a fantastic job they did. We would highly recommend Nicky as the work they have done is nothing short of fantastic!
Elvis Torba
No reviews yet
Extension Builder in Harlow
Hi, I’m Elvis, a professional bricklayer with over a decade of experience in all aspects of brickwork and masonry. I take pride in delivering high-quality workmanship, whether it’s garden walls, extensions, repointing, repairs, patios, or new builds. I’m reliable, hardworking, and always make sure every job is completed to a high standard with attention to detail. Customer satisfaction is very important to me, and I always aim to keep work areas tidy, finish on time, and provide honest, competitive pricing. I cover local surrounding areas and am happy to take on both small repairs and larger projects. If you’re looking for a trustworthy bricklayer who takes pride in their work, I’d be happy to help.
Get in touch
Maxmar Construction Ltd
Rating: 4.7 out of 5
Extension Builder in Harlow
We are a company that pride ourselves on taking excellent care of the ‘whole project’, from design to completion. We can, on your behalf, manage your project, coordinating all the required trades to turn up as and when required, leaving you to get on with daily life. Your dream home could be closer than you think, allow us to turn your ideas into reality. My company has lots of experience working on many different projects, big or small! On a personal level I am a honest hardworking individual. I have a lot of experience in all aspects of building work. I am familiar with building regulations and used to dealing with building control officers from the various local authorities. I have a fully skilled team of builders who cover all types of general building maintenance including kitchen and bathroom fitters, plasterers, flooring specialists, painters and decorators. The company offers a fully insured and guaranteed comprehensive
Get in touch
Latest review:
Conversions - General- 21 Jul 2013
Flooring & lighting to extension not completed appropriately and resulted in later problems.
A1Z Construction Limited
No reviews yet
Extension Builder in Harlow
Fast growing construction company We are happy to provide wide range of construction services including all types of extensions, new built, home renovation, ground works
Get in touch
Noor Building Services
New on MyBuilder
Extension Builder in Harlow
I am specialist in bricklayer,tiller and plastering
Get in touch
Burwood Building Services
Rating: 4.5 out of 5
Extension Builder in Harlow
Burwood Building Services is committed to delivering exceptional workmanship with pride in every project we undertake. We maintain the highest standards while offering competitive pricing across a comprehensive range of building services, including full renovations, kitchen and bathroom installations, flooring, plastering, and painting & decorating. Our team includes fully qualified plumbers, electricians, and gas fitters to ensure a seamless, professional finish. We prioritize cleanliness and protection throughout each job. Contact us today for a free quote, and visit our website for more information
Get in touch
Latest review:
Restoration & Refurbishment- 28 Mar 2026
Great team, good service and unbeatable price!
Cranham village construction
No reviews yet
Extension Builder in Harlow
General building, maintenance and repairs.
Get in touch
Kumar
No reviews yet
Extension Builder in Harlow
I do taken all kind of residential work like plumbing,plaster, new boiler installation loft conversion,bathroom,kitcken,tiling, flooring,electric work, double glazing,conservatory,porch,roofing.
Get in touch
A&s builders
No reviews yet
Extension Builder in Harlow
Greater London January 2000 to December 2023 20+ years self-employed experience in the construction trades which include the following: Central heating system Installed combo boiler Double story side and rear extensions Loft conversion Conversion of flats Installing new kitchens and bathrooms Drives and The above is the experience I have gained working on both my own and clients projects. My clients have all been left very satisfied and were repeat customers
Get in touch
AJ
No reviews yet
Extension Builder in Harlow
handyman
Get in touch
Roozbeh
No reviews yet
Extension Builder in Harlow
3D-Design Build and Maintenance
Get in touch
Ed’s loft conversions Ltd
Rating: 5 out of 5
Extension Builder in Harlow
We specialise in loft conversions, Extension to a complete house refurbishment.
Get in touch
Latest review:
I engaged Edi to work on a full renovation and refurbishment of a 4 bedroom detached house with front and back gardens on Blackheath’s Cator Estate. Edi did an extensive amount of work, including stripping out; plumbing; plastering; windows installation; carpentry; and decoration. In addition, after commencing the property work, once the scaffold had been erected, following sensible advice, Edi and his team replaced the roof and fully insulated the attic; fitted additional electric points; rebuilt the garden patio; and replaced the flooring throughout, in addition to other important jobs including re rendering and pointing of chimneys, building new wardrobes in the main bedrooms; and upgrading the radiators. A new kitchen, and two new bathrooms have been fitted. The kitchen redesign meant knocking through a wall with the lounge to create a larger space. Edi is a highly skilled craftsman, who thinks creatively as he works to make best use of the space, including shelf fittings, and additional lighting for example. He has built some beautiful wardrobes, and the internal decorations have brightened up what was previously a rather shabby looking house. In addition to the above, I wish to commend Edi for his professionalism, courtesy, and passion for doing the best work possible. On all the site visits I attended, and every time I spoke with him on the phone, it was striking how much he cared about the work that he was doing, his desire to ensure that the house would look the best. I always left site visits with the feeling that he cared so much about the house that he could be safely relied on to give the best advice to enable us to make the right decisions. I also noticed that Edi and his team would take the upmost care to keep the property safe, tidy and in good shape throughout the project. He can be fully trusted to look after any site he works on. He is intelligent and careful when it comes to safety and security. It has been a pleasure for Edi and his team to work with us over a period of around 6 months, and he did so much to reduce the stress of a significant project so that we could always rely on him to work methodically, patiently and sensibly, and to make best use of the resources available. His pleasantness shines through, and everyone I know who has spoken to him has always provided me with the most positive feedback I have no hesitation in recommending Edi to anyone who wishes to engage him for future projects, and is most deserving of the good words that I and others that work with him have to say about him.
Bujar
No reviews yet
Extension Builder in Harlow
Hi
Get in touch

4.4

Top rated Extension Builders

Our Extension Builders in Harlow, 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 Harlow?

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

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

What are the hourly rates of extension builders in Harlow?

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

Find extension builders in Harlow with MyBuilder

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

Step 2: Compare different extension builders in Harlow

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

Step 3: Hire Harlow extension builders with confidence

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

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

What to ask a Harlow extension builder before hiring?

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

An extension builder in Harlow 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 Harlow 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 Harlow?

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 Harlow 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 Harlow 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 Harlow

Can an extension builder in Harlow help with planning permission?

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

Many Harlow 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 Harlow help with materials and finishes?

Yes, most extension builders in Harlow 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.