Extension Builders in Harwich

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.3 (3 reviews)

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Some of our top rated extension builders in Harwich

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Michael Brussell building
Rating: 5 out of 5
Extension Builder in Harwich
My name is Michael Brussell I’m a carpenter/plumber I’ve been in the trades for 25 years since leaving school in that time I’ve worked on many different types of properties/sites and gained experience in full timber frame house builds to listed properties (200 years old)
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Latest review:
Plumbing- 9 Jan 2026
Came out super fast. Great service. Will be using again!
J.B Building and Carpentry Contractors
Rating: 1 out of 5
Extension Builder in Harwich
We are a relatively new company looking for local work to build and maintain our high reputation. We have a small team of professional and fully trained carpenters and builders, who are happy to provide free quotes to cover all aspects of carpentry and building repairs.
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Latest review:
Carpentry- 5 Nov 2017
Cancelled first visit and rearranged for following day. Then did not turn up ! AVOID !
bw brickworks
Rating: 5 out of 5
Extension Builder in Harwich
BW Brickworks has over 15 years experience in the industry and provides itself on being neat,tidy,honest and reliable.We are fully qualified, we have up to date health and safety certificates and insurance.We can provide excellent references and be sure you wouldn't be disappointed. Many Thanks Joe
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Latest review:
Bricklaying- 6 May 2014
Top class good team very considerate . Transformed our property. Thanks.
BigM LTD
No reviews yet
Extension Builder in Harwich
we are general builders who undertake a range of projects from the small domestic to the commercial we specialize in electrics and plastering and our team have experience in all trades
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D&F Engineering
Rating: 5 out of 5
Extension Builder in Harwich
I’m a civil Engineer with a wide knowledge of groundwork’s, and building works. Cad drawings for extensions and planning applications. Deep and shallow drainage, all reinstatement works. Own diggers and plant. EA register and approved top registration. Free quotes locally. Lots of recommendations.
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Griggs Builders Ltd
Rating: 4.8 out of 5
Extension Builder in Harwich
Hi my name is Ricky Griggs and I am the director and owner of Griggs Builders Ltd. We provide a full building service and we are customer focused, professional and friendly with over 16 years of building experience. We take big pride in all of our work and strive to keep our excellent reputation.
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Latest review:
Extensions- 10 Jun 2019
Excellent quality work by professional people. Ricky is easy to get on with and kept me updated throughout the build. Trustworthy and reliable. Ironed out minor issues that cropped up with minimal fuss. Highly recommended.
Newlife Building and Roofing
Rating: 4.4 out of 5
Extension Builder in Harwich
Family owned and operated, we specialise in building long term working relationships with our customers to ensure they receive the best and keep returning for more.
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Latest review:
Roofing (Pitched)- 2 Apr 2016
Brilliant service would use this company again. Job done could not ask for a better service prompt no mess efficient excellent.
Birchwood Contracts Ltd
Rating: 4.8 out of 5
Extension Builder in Harwich
Birchwood Contracts is a carpentry and construction business in Colchester, Essex that is owned by myself. I’ve been a carpenter for 10 years and recently set up my own business. We’re a selectively put together team of highly skilled and qualified tradesmen to provide all carpentry and construction related work across East Anglia.
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Latest review:
Carpentry- 31 Jan 2025
Made appointment,s and didn't turn up very un reliable
M.O.K BUILDING SERVICES LTD
Rating: 5 out of 5
Extension Builder in Harwich
we are a company based in Ipswich. We consist of four working directors who pride ourselves in maintaining the highest standard. Each director has a minimum of 10 years experience within the industry. We normally undertake extensions and alteration works.
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Latest review:
M.O.K built us a single storey extension and took out the wall between kitchen and dining room. Luke and his team did a great job. High quality workmanship from a friendly efficient company.
Matthews Builders
No reviews yet
Extension Builder in Harwich
Matthews Builders are a family run business. With over 30 years experience in brickwork and property maintenance. We undertake all aspects of building work.
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JW Brickwork and Building Services
Rating: 3.7 out of 5
Extension Builder in Harwich
JW brickwork and building services provide a friendly & professional service & stand by our commitment to provide high quality workmanship with 100% customer satisfaction. We offer expertise & reliability in all work & attract most of our work through customer recommendation. I pride myself on the relationships built with my customers. My services come with guarantees so my clients can feel confident in my ability to deliver high quality products.
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Latest review:
Repointing- 6 Sep 2017
Very happy with Josh's work. He removed several bricks, went to a reclamation yard to get good matches, set them in and repointed other bits in the same area. He was thorough, the work is of a high standard, and he cleaned up well. He also rigged up the old gate so the garden was secure until the new gate arrived. (By the way he didn't spend any time working one-handed while talking on a mobile for which I was grateful.) His charges are very fair. I have asked him to quote for a bigger job. Was slightly wary of employing someone who had just joined MyBuilder but glad I did.
Be you build
Rating: 5 out of 5
Extension Builder in Harwich
Be You Build is a trusted general building contractor specialising in house extensions, HMO conversions, renovations, landscaping, and property improvements. We work closely with homeowners, landlords, and developers to deliver high-quality projects from start to finish. Our services include single and double-storey extensions, full property refurbishments, HMO conversions, structural alterations, brickwork, groundworks, patios, driveways, fencing, and landscaping. We pride ourselves on professional workmanship, clear communication, and delivering projects safely, on time, and within budget. Whether you’re looking to create more living space, add value to your property, or transform your outdoor areas, Be You Build is committed to bringing your vision to life with quality you can trust. Constructionline Gold Member | Fully Insured | Free Quotations
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Latest review:
We was recommended Tom and rob from be you build Ltd buy a work colleague Who had their extension built by Tom and the Team. The guys come out and see us at the property and went over our plans and put together a competitive price from start to finish. The Team was great to deal with and come across extremely knowledgeable. They managed to get us booked in within four weeks turned up when they said they would a team of 3 delightful gentlemen done the works they protected all of our furniture helped move stuff out of the way and sheeted everywhere up properly the works took one week as the company had explained. Everything was done professionally to a high stranded with minimal disruption to home life. Can’t fault the Team nor the finish of the job. Thank you to all involved would give more than five stars if I could can’t fault the Team their work ethic communication and professional professionalism. Thanks again guys Dave smigg
BRM Design and Build Ltd
Rating: 3.7 out of 5
Extension Builder in Harwich
Here at BRM Design & Build Ltd, we offer exceptional loft conversions and extensions to transform your living space and bring your interior vision to reality. Based in Essex, we also cover the London and Hertfordshire area. We have over 15 years’ hands on experience in the building industry. We can assist you with a design to build project or if you have already had plans/ drawings done we can take over from there. We also offer other services such a roofing maintenance and landscaping.
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Latest review:
Fascias & Soffits- 18 Apr 2016
Bill got on with work whilst we were at work and left things tidy over night. He contacted us by phone and sent photos to keep us up to date. He was proffesional and we would recommend him and use him again!
Mason Plumbing & Heating (Essex) Ltd
Rating: 4.7 out of 5
Extension Builder in Harwich
Here at Maison Construction & development Ltd we offer a reliable, responsive service that encompasses everything necessary to keep buildings safe, watertight and looking their best. Bringing a professional, friendly and competitively priced service for all of your needs!
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Latest review:
Bathroom Fitting- 20 Feb 2020
Excellent job!! So pleased with both new shower room and bathroom. Neat and tidy workmanship. Not only did Phil do exactly what we wanted but came up with some really great alternative ideas. Explains everything throughout the whole process, and a good price too. Still have some more work lined up for Phil, and would have no problem recommending him, (actually already have) Many thanks Phil Kim Lawford, Essex
Pro Build (East) Ltd
Rating: 5 out of 5
Extension Builder in Harwich
Pro build (east) is a friendly professional general building company that specialises in extension ,conversion and alternations. With over 15 years experienced in the building trade and an teams of trades ready to complete any project any size! Please get in touch for a free no obligation quote
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Latest review:
Extensions- 20 Nov 2019
Matt of Pro Build (East) Ltd. was instructed to complete a home extension on my Victorian Mid-Terrace property at the beginning of July 2019. Matt initially replied to my MyBuilder advert promptly, came to view the job within days and could start the next week (in hindsight, probably not a good sign). He started work on the Monday, providing a quotation and an expected completion date of 3-4 weeks later for the complete extension including removal of waste, plastering and external rendering. Throughout the build, Matt's communication was prompt, replying to emails, phone calls and text messages mostly within the same day. Unfortunately, on a number of occasions problems arose with the project and I was frequently to blame for certain aspects, for example it was my fault that the roof could not have slates because the roof was built at a low pitch - however the quote included slates? The quality of workmanship throughout the build was very varied, requiring Matt and his team to return a number of times to re-do work which was deemed unsatisfactory by me, other workmen and the building inspector. There is quite often a number of excuses for why work has not been done, or why it has been done to a low standard as opposed to correcting the issue without argument. In the end, the whole build took 14 weeks to complete and remained to have a number of snagging issues, I would not personally recommend this company for larger works such as this.
Worx Construction Ltd
Rating: 5 out of 5
Extension Builder in Harwich
Worx construction ltd its two of us in the business. We do provide and offer all kind of services related to building for example bricklaying, groundworks, excavations, foundation, flooring all carpentry domestic works. How we operate, we are always searching for new customers like advertising our selves, we try to leave best impression of our work to customer so they will be happy and pass our name forward.
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Latest review:
Fencing- 13 Oct 2020
We had a new fence and part of the front garden concreted and the other part slabbed. Everything was done to a excellent standard and even when the weather was bad they still kept working hard. I would definitely recommend worx constructions as they where by far the best quote and they turned up on time every day and worked neatly and tidy. Thank you for the hard work.

3.3

Top rated Extension Builders

Our Extension Builders in Harwich, are rated 3.3 out of 5 based on 3 reviews 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.