Extension Builders in Harwich

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 1 (1 reviews)

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Some of our top rated extension builders in Harwich

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ASO Building & Landscaping
Rating: 5 out of 5
Extension Builder in Harwich
Experienced builder with over 12years in construction and landscaping. I pride myself in finishing all work to a high standard and keep my work areas clean and tidy. Unsure of your design? I can provide ideas to suit all budgets. FREE QUOTATIONS
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Latest review:
Conservatories- 16 Aug 2025
excellent service job was done within a week no fuss antony was very pleasant and helpful nothing to much trouble would recommend
Smooth Finish Extension & Refurbishment
Rating: 5 out of 5
Extension Builder in Harwich
Hi im Liam ,my company is Smooth Finish. We cover all aspects of building work with over 15 years experience we take great pride in your work. Smooth Finish are friendly, reliable, clean and price competitively , we also offer free quotes
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Latest review:
Extensions- 13 Jun 2025
Liam and team did a great job building and completing our side return extension. The extension was built to a high standard and it all looks very neat and well done. Liam was good at communicating with us every step of the way and would even pop in if he was passing by to make sure that we were happy with the progress (and for a cup of coffee). He did everything he could to make sure that we came in on budget and was keen to help us with sourcing any extra's that we wanted. Overall, Liam, Clive and the rest of the team were knowledgeable, professional and skilled at what they do. I would recommend giving him a call if an extension is what you are planning for your home.
Essex Building and Development
Rating: 5 out of 5
Extension Builder in Harwich
A family run business which was established in 2015. We specialise in all aspects of buildings ranging from fitting a plug to building your your dream home. We pride ourselves as quality tradesman in and always deliver an excellent job with quality advice from our first meet to finished job! Happy to take on any size project, no job is too big or small.
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Latest review:
I had work in my garden last year. removal of garage, new lawn and patio , new fencing and all finished to a high standard. So pleased with the result and cannot recommend Billy and he’s team enough. Worked so quickly, very reliable and so easy to talk to when working out what I wanted. Can’t Thank these guys enough.
LP Brickworks & Landscapes
Rating: 5 out of 5
Extension Builder in Harwich
Here at LP Brickworks And Landscapes we specialise in everything Brickwork,maintenance and landscaping. We will happily provide you with a free quotation at your convenience. We take pride in everything we do. Quality work and attention to detail guaranteed. All types of works undertaken.
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Latest review:
Repointing- 6 Jun 2022
Very pleased with the job, Luke worked late to ensure the job was completed to his & our satisfaction. Work neat & tidily & cleared up well. We are very pleased with the outcome. i would recommend.
Suffolk Build Direct
Rating: 5 out of 5
Extension Builder in Harwich
Suffolk Build Direct is an established building company based in Shotley,Suffolk. We are happy to provide a free,transparent and full quotation on any project you may be considering. Thank you for your valued enquiry and we trust we can be of assistance with your project.
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Latest review:
Restoration & Refurbishment- 6 Jul 2012
Absolutely fabulous job, couldn't be more pleased. Prompt, efficient service and polite, exceedingly helpful person. THANK YOU for mending my step, above and beyond and saved me a job I was putting off. Your a star!
H & Son Maintenance
Rating: 5 out of 5
Extension Builder in Harwich
H & Son Maintenance: Trust us for reliable property maintenance! Local to Felixstowe. I specialize in property maintenance and management for local homeowners, landlords & businesses. Experience in all day to day maintenance and improvements, a true one stop shop for all your needs from woodwork, brickwork, landscaping to electrical and plumbing.
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Latest review:
Absolutely love my decking. Howard works really hard, originally said it would take 3 days but completed in 2. Very neat and tidy, added an outside socket for the lights, all done very professionally. I will definitely be calling on him again!
GOA
Rating: 5 out of 5
Extension Builder in Harwich
GOA construction, building and carpentry services. From a custom hand cut roof or a brick and timber extension involving complicated steel work. We can design and supply or just fit your own kitchen, custom build your dream wardrobes. Based in Frinton on sea GOA construction have a wide skill base with over 50 years of experience within our small and professional team. Please consider us for your project which we will happily take the time to talk through with you. Mark, GOA construction.
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Latest review:
Carpentry- 16 Apr 2024
Mark & Shaun did a great job on installing sliding doors. Very professional, friendly and great attention to detail. Glad we hired them.
Butterfly Builders
Rating: 5 out of 5
Extension Builder in Harwich
Butterfly builders offer quality builds finished at a high standard, we undertake all aspects of property maintenance & construction from garden walls to new build projects. Please contact for a free quotation.
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Latest review:
Bricklaying- 19 Sep 2021
Punctual and polite, quoted a fair price and made a great job of it
Bakers Building Services
Rating: 5 out of 5
Extension Builder in Harwich
Bakers Building Services is a professional Business based in frinton, We pride ourselves on high quality workmanship and value for money. Our aim is to make the whole building experience easy and stress free with one thing in mind and that is 100% customer satisfaction. We offer free friendly advice & estimates, along with a full written confirmation of works carried out.
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Latest review:
Extensions- 24 Nov 2016
Bakers Building services have been exceptional throughout the entire project to complete a single story extension on our Victorian terrace in Colchester. Jamie has been easy to talk to and open to all of our ideas when other builders dismissed them. He has also communicated well and kept us informed of timelines and delays with building works. He was also very thoughtful with our neighbours during the build as we have shared assess through their garden so he was always ensuring that they were happy and the site was kept tidy. Jamie has amazing attention to detail and was quick to address any of our concerns throughout the building process. His team have also helped with things not in their remit, like helping get the range cooker in to the house and assisting with cleaning our parquet flooring blocks to help us lay the floor. We have got an amazing extension thanks to Jamie and his team so they are highly recommended and I know they will be in much demand, judging by the amount of neighbours we have had asking to see his work with a view to extend their own properties. Star Builder and we are looking to having him and his team back to further renovate our property when we tackle the first floor
J Ovenden Property Development & Maintenance
Rating: 5 out of 5
Extension Builder in Harwich
Whether your needs are minor fixes or a big project, I undertake many aspects of general building alone: windows, doors, conservatories, fascia, soffits, roofs, extensions, conversions, studwork, steelwork & footings. As well as individual tasks, I can run or just advise right through your project, from conception to completion. I use the same certified, competent & reliable tradesmen for projects that involve plastering, bricklaying, plumbing and/or electrics.
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Latest review:
Windows & Doors (uPVC & Metal)- 14 Mar 2020
Joe put new double glazed window in for us and took him no time at all very quick and professional and cleaned up afterwards definitely would use joe again
7 eleven construction Ltd
Rating: 5 out of 5
Extension Builder in Harwich
At 7 Eleven Construction we provide outstanding landscaping and building services to all commercial and domestic customers. Our team take great pride in each and every job treating it as it was our own. We are based on the Essex/Suffolk border covering all Essex and Suffolk areas
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Latest review:
Landscaping- 24 Jun 2026
Supplied fast accurate quotes and all materials, so no need to source them. Efficient, innovative in finding solutions for the space and worked through difficult weather professionally for a fantastic result! Highly recommend!
The Ace Group
Rating: 5 out of 5
Extension Builder in Harwich
With years of experience in the industry, we pride ourselves on providing top quality products and exceptional customer service. We understand that a window, door installation, extension or conservatory is a significant investment, which is why we offer competitive pricing without compromising on quality. Our skilled technicians will ensure that they will complete your dream project with the utmost care and precision, ensuring a seamless fit, a streamlined journey and maximum quality.
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Latest review:
I LOVE my garden wall, we’ve had some real dodgy weather recently with rain, wind and mad heat but the wall hasn’t tarnished and has stayed solid as a rock. My beds are lovely but I’m not very good at remembering to water my plants! On the whole The ace group we’re on time, we’re there when they said they was and just really friendly and polite. They also took into account everyday I have elderly visitors and children and cleaned up any mess at the end of each day. Can’t fault them will 100% use again if needed
Sanders home solutions
Rating: 5 out of 5
Extension Builder in Harwich
Family run company No sub contractors Been in business for 40yrs No pushing just advise Wide range of products
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Latest review:
Conservatories- 21 Dec 2025
Sanders home solutions replaced my mother’s conservatory roof. Mel came out to quote for repairs and a replacement roof. He was very friendly, knowledgeable and helpful , explaining the process to my elderly mother. Mel and his team replaced the roof whilst my mother in hospital . Good communication and completed in a day. The new roof looks fantastic. Mel sent photos of the work once completed and we have now been round to look ourselves and the team have done a fantastic job. Very trustworthy company I will definitely use again Thank you to you and your team Mel .
S Brown Construction (Essex) Limited
No reviews yet
Extension Builder in Harwich
I’m a Multi trader that can do most jobs start to finish like extensions, kitchens, bathrooms and landscaping so you won’t have deal with multiple trades.
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IDM Building Solutions Limited
Rating: 5 out of 5
Extension Builder in Harwich
We are a family run business with a combined experience of over 40 years in the trade. We do not use commission based salesman meaning we can keep our overheads down, allowing us to be more competitive but with no substitute to the quality
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Latest review:
Extensions- 9 Jan 2021
Started on time very,Good work, friendly, I am so please I used them.
Edwin Lewis Dickinson Ltd
No reviews yet
Extension Builder in Harwich
EDWIN LEWIS DICKINSON LTD is a carpentry and building company based In Harwich offering and using only the best materials and tradesmen to complete your project from start to finish to the highest standard, also a WHICH TRUSTED TRADER. For a free quotation for your next project, new build, extension, loft conversion, annexe, garden room, kitchen, etc please contact Edwin
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Top rated Extension Builders

Our Extension Builders in Harwich, are rated 1 out of 5 based on 1 review from customers like you.

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What types of services are offered by local extension builders in Harwich?

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

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

What are the hourly rates of extension builders in Harwich?

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

Find extension builders in Harwich with MyBuilder

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

Step 2: Compare different extension builders in Harwich

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

Step 3: Hire Harwich extension builders with confidence

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

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

What to ask a Harwich extension builder before hiring?

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

An extension builder in Harwich 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 Harwich 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 Harwich?

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 Harwich 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 Harwich 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 Harwich

Can an extension builder in Harwich help with planning permission?

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

Many Harwich 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 Harwich help with materials and finishes?

Yes, most extension builders in Harwich 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.