Extension Builders in Harleston

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.7 (3 reviews)

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Some of our top rated extension builders in Harleston

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J J Steele Construction
Sponsored
Rating: 4.5 out of 5
Extension Builder in Harleston
We are a construction company based in Norfolk covering all of east anglia. With a combined 50 plus years of construction and building, our knowledge and expertise can help manage projects as little as patios to new build houses. All of our work is guaranteed and all operatives are trained and insured. Facebook - J J Steele Construction Instagram - Jjsteele_construction jjsteeleconstruction. Co. Uk
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Latest review:
Driveways (Paved & Loose)- 5 Nov 2024
New Marshalls Savanna block paving to front drive, decorative stones to the perimeter and porcelain paving to the external porch CB4 1BP. Jake did a great job taking over from a contractor who couldn't finish the job due to ill health. Would certainly use again and highly recommend for this type of work.
MB Carpentry Contractors LTD
Rating: 5 out of 5
Extension Builder in Harleston
Based in Harleston, Norfolk covering work across east anglia. MBCC has 20 years experience and our goal is to provide a quality standard of work to our clients and fulfil their needs and expectations. We have currently spent the past year working on a block of luxury flats in Shenfield, Essex and a site of residential houses in Foxley, Norwich.
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Latest review:
Carpentry- 3 Sep 2020
Michael quoted and completed the work very quickly. Quote and invoice were via email the day expected and there was excellent communication throughout. He gave a fair price and advice I would I trust. He is personable and was very tidy. Would definitely hire again and recommend.
DNA Construction
Rating: 5 out of 5
Extension Builder in Harleston
We are a family run construction business that has the knowledge and experience to provide & undertake all aspects of construction. We specialise in all aspects of small to full renovations and restorations of listed, period and historic buildings, from repointing to full renovations using traditional skills and materials. We also undertake conversions and additions for people who are disabled or with physically difficulties in respect of small conversions to full conversions of rooms to wetrooms and associated extensions if required. We also undertake insurance based projects from inspection, quotation and completion. We also undertake extensions, structural repairs and specialist structural work, kitchen and bathroom refurbishments on private and commercial properties. We take the time to listen to you and your requirements and to then work closely with you to achieve your end goal by providing the necessary experience, knowledge & skills to do so.
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Latest review:
Having terminated a contract with a builder for a garden room because of unsatisfactory workmanship and overrun on the completion date we needed a builder quickly. Adrian Greenmore was recommended to us by a friend . Within a day Adrian had come, assessed the work needed. We were given a clear comprehensive quotation and a draft contract. Work started and finished within the contract period. Sub-contract work was arranged and available for use more quickly than was expected. Adrian and his employees worked hard and efficiently. Some detailed work was done to a very high standard. It was always a pleasure to have them on site being polite and considerate. There were a couple of occasions when they were needed elsewhere. We were always told in advance and when they would be back ; usual no more than one or two days. Therefore we were never left wondering about 'disappearing builders'. When finished the work was passed by our architect and planning officer who was very pleased with the way the new-build jelled with the house and environment. The final invoice was as expected with no hidden costs. It was detailed and clear making everything much easier to understand. Both my wife and I would have no hesitation in recommending Adrian Greenmore to potential customers. We feel that we were given quality and, above all, a lack of hassle and frustration. We would be willing to allow inspection of the building with, of course appropriate warning.
Waveney Builders Ltd
Rating: 5 out of 5
Extension Builder in Harleston
Experts in Refurbishments, Extensions, Conversions & New Builds. Serving Bungay, Beccles, Halesworth, Harleston and surrounding areas with exceptional building services. All works are insured & to current building regulations Full architectural service available (including the acquisition of planning permission) PROFESSIONAL BUILDING SERVICE, ON TIME! We at Waveney Builders, pride ourselves on delivering you professionalism along with a high level of service, as local recommendations are our best form of advertisement. We provide you with a local team exclusive to your project on-site (8:00 am - 4:00 pm) daily from start to finish. All projects are broken down into labour days on schedules that we have on our in-house Apps that allow our team to track progress in real-time which means we can deliver your project on time.
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Latest review:
Extensions- 13 May 2025
I am so happy they done a fantastic job of installing my gazebo, I would definitely recommend. Really professional, friendly, reasonably priced and job well done.
RHR building services Ltd
Rating: 5 out of 5
Extension Builder in Harleston
RHR building services has been an established company since 2001. We undertake every aspect of building and roofing work, and we have a registered electrician and plumber we call upon when and if required.
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Latest review:
Conversions - General- 8 Jul 2019
Rob and his team did a fantastic job on our bedroom,esuite and sunroom conversion,including rendering the outside walls.They also took up our cement slab patio and relaid it in Indian Sandstone.We cannot speak highly enough of their craftsmanship and hard work,nothing was too much trouble and they really took a pride in what they did. We would not hesitate in recommending these guys, their pricing was reasonable and they were nice people to have around,in fact they are in the process of quoting for some future work for us.
Coleman construction management ltd
Rating: 5 out of 5
Extension Builder in Harleston
We carry out all types of construction works starting from minor internal works to major construction works.
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Latest review:
Restoration & Refurbishment- 30 Nov 2021
Hired John and team to do re-vamp on my bathroom and wet room, wet room will be started on in new year. John listened to all my thoughts on what I wanted to achieve on my budget, he came back with some lovely suggestions that have given me a better look then I could of imagined possible, while sticking to my budget.They arrived when they said they would. The job was completed in the time scale given, to a very high standard of craftmanship with full consideration given to myself and my property. All mess was cleared up and left tidy.I would recommend them to anyone and can not wait to get started on the wet room.Thank you so much John and team
Morphs Plastering Company
Rating: 5 out of 5
Extension Builder in Harleston
With over 25 years of expertise in the building and plastering industry, I am a trusted local tradesman for all your plastering needs. Backed by a dedicated and reliable team, we pride ourselves on delivering exceptional results with a friendly and professional approach. Our commitment is to ensure that every project is completed to the highest standard, providing you with peace of mind and a space you can truly be proud of. Choose us for a plastering experience that exceeds your expectations.
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Latest review:
Plastering- 21 May 2024
Luke was quick to respond. The team were both professional , clean and super efficiant.
S.M. Fencing & Paving Services
Rating: 5 out of 5
Extension Builder in Harleston
S.M. Fencing & Paving Services is a well established family run business. We specialise in all types of fencing, trade and domestic also patios driveways etc. Sandstone paving specialist and all landscaping undertaken. We also do general ground works ie drainage, footings and digger hire.
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Latest review:
Fencing- 4 Aug 2023
Absolutely delighted with the work done. I would have no hesitation recommending them to anyone else.
Paul Marvin Building Services
Rating: 5 out of 5
Extension Builder in Harleston
General Builder undertaking all works within the building trade. I have 30+ years of experience. Work I have undertaking are - loft conversions, extensions, driveway, patios & landscaping, garages, renovations.
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Latest review:
Bricklaying- 20 Jul 2020
Paul did a really great job.Happy to recommend.
Iris Construction (Iris Environmental Installations Ltd)
Rating: 5 out of 5
Extension Builder in Harleston
Small building company based in Diss. All projects and work undertaken, from garden landscaping, patios, extensions, plumbing, bathrooms, kitchens, conversions and refurbishments both commercial and domestic.
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Latest review:
Extensions- 3 May 2026
From start to finish, Kingsley kept us informed of what was happening and when, how much things would cost, gave suggestions about minor changes and generally made us feel like we were active in the whole process. Yes, it was stressful for us at times, but he was doubling the size of our floor plan, moving the kitchen while we were still living in the house. He did make it as easy for us as he could, leaving appliances working for as long as possible. The team of contractors he works with are brilliant, willing to go above and beyond to get the job done perfectly. He is very grateful for cups of tea and was happy to let my 9 year old nephew help out now and then. Kingsley is a superhero in my nephews eyes. Really pleased with the outcome of my build. Would definitely recommend Iris Construction.
calbrooke builders
Rating: 5 out of 5
Extension Builder in Harleston
Calbrooke builders are specialists in all brickwork, with over 20 years experience in the building trade. Friendly, honest and reliable. All aspects of building work are considered. Free quotes given, with no obligation.
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Latest review:
Bricklaying- 24 Sep 2020
Excellent job done by Warren and area was cleared up before he left. Very pleased with service.
NJS Brickwork & Building.
Rating: 5 out of 5
Extension Builder in Harleston
I am a bricklayer with 25 years experience. I have worked on extensions/alterations to conservatories and high end self builds. I have vast experience in brick/block work, stone work and all types of paving and groundwork. I normally work on new builds ,extensions garden walls, patios and driveways.
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Latest review:
Bricklaying- 10 Jun 2020
Neil was very helpful from then outset. Having provided some very useful input while assessing the job, he provided a reasonable quotation pretty quickly. Once awarded the job he turned up as expected and worked solidly throughout. His work was very good and he kept the work area clean and tidy. He was also willing to operate a digger mid way through the job when some additional earth removal was required. There was no drama and working with Neil was very easy. A really friendly but unimposing guy. Thanks Neil - I'll certainly pass your details on to anyone who needs any block or brick work doing and will certainly call if I have other similar work.
Master Control Construction Ltd
Rating: 5 out of 5
Extension Builder in Harleston
I'm Julian, the Managing Director of Master Control Construction Ltd. With extensive experience in the building trade, I lead a team of highly skilled workers, each with years of expertise in their respective trades. I prioritize clear and open communication throughout every stage of our projects.
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Latest review:
Damp Proofing- 28 Nov 2024
Julian and his team did a great job. Very attentive and knowledgeable, bringing pragmatic solutions as the work unfolded. Communication from Julian was excellent! An in-depth update was received each evening. The plan we were given for the project was exactly what happened. When we expected his specialists to be there, they were there. Very trustworthy. We have already asked for Julian's help in Spring '25, to solve some other issues we have. I would like to say thank you to Julian for a super job! You should definitely give Master Control Construction Ltd a call!
A,N,JOLLY
Rating: 5 out of 5
Extension Builder in Harleston
I DO START TO FINISH OR WORK IN WITH WHATS BEST FOR CUSTOMER IF I DONT DO THE TRADES NEEDED I GET THEM IN FROM PEOPLE WHO I HAVE WORKED WITH FROM PREVIOUS TASKS IF REQUIRED REFS CAN BE OBTAINED BEFORE WORK COMENCES AND ALSO I CAN GO TROU JOB DETAILS AT ANY TIME TO GIVE YOU SATISFACTION THAT IS WHAT WE BOTH WANT
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Latest review:
Windows & Doors (uPVC & Metal)- 21 Oct 2017
Tony gave a quick and competitive quote and on the day did a fantastic job, doing a professional finish on the installation of the door and leaving the area clean and tidy. Would highly recommend.
FREELOGICS CREATIONS LIMITED
No reviews yet
Extension Builder in Harleston
An established team we offer all aspects of property development, hard/soft landscaping, groundwork, restoration, covering the Norfolk and Suffolk areas. With 15 years experience we have worked alongside designers and developers across East Anglia providing a professional, reliable, friendly service start to finish from the initial meeting right though to completion, all our work is carried out to the highest standards using fully qualified and experienced tradesmen, fully guaranteed and insured
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DOUGHTY CONSTRUCTION LTD
No reviews yet
Extension Builder in Harleston
I've been in the building trade for 16 years covering all building aspects but specialising in brickwork , offering a friendly and reliable service .
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Oryx Brickwork
Rating: 5 out of 5
Extension Builder in Harleston
We are a small family run brick work and block work company specialising in new builds, extensions, renovations, conservatory bases and more. We hold nvq level 2 qualifications and many years experience, with an outstanding portfolio of work and many happy customers. We pride ourselves on an exceptionally high standard of work and aim to deliver projects on time and at a competitive price. This tradesperson previously traded as Mepham Brickwork Ltd. All feedback received prior to 25th January 2024 relates to Mepham Brickwork Ltd.
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Latest review:
Bricklaying- 31 Dec 2025
Great work, neat, tidy and professional. Thank you!

3.7

Top rated Extension Builders

Our Extension Builders in Harleston, are rated 3.7 out of 5 based on 3 reviews from customers like you.

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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 Harleston?

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

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

What are the hourly rates of extension builders in Harleston?

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

Find extension builders in Harleston with MyBuilder

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

Step 2: Compare different extension builders in Harleston

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

Step 3: Hire Harleston extension builders with confidence

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

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

What to ask a Harleston extension builder before hiring?

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

An extension builder in Harleston 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 Harleston 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 Harleston?

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 Harleston 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 Harleston 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 Harleston

Can an extension builder in Harleston help with planning permission?

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

Many Harleston 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 Harleston help with materials and finishes?

Yes, most extension builders in Harleston 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.