Extension Builders in Lowestoft

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

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

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 Lowestoft

145 Results

Sort by:

Blue Sky Property Services
Rating: 5 out of 5
Extension Builder in Lowestoft
We undertake all sorts of work from general carpentry, floors, through kitchens and then lots of extensions, renovations and loft conversions. We specialise in timber frame which is faster, less costly, more environmentally friendly, and can be insulated to a much higher level for the same thickness of wall. We also never forget that these are homes we are working on, not just houses!
Get in touch
Latest review:
Conversions - General- 25 Aug 2025
My instinct told me that James was the right man for the job even before I'd seen anybody else. The ONLY problem that he has ever given me is now: How to write a review that does him the justice he so richly deserves. James introduced ideas and changes that thankfully made it into the final design, often emailing me Sketchup plans well outside of the normal working day. To say I am happy with the end result would be a massive understatement. It is, without doubt, a most beautiful building with no detail so small as to have been overlooked. James was more than happy to accommodate changes along the way, being completely flexible in that and every other respect. He seamlessly arranged a bricklayer, concrete deliveries, and the many deliveries of all materials required. All the while ensuring the site was clear and safe. If you have a building project planned and want to sweat the details, or not, consider asking James to quote and see what your instinct tells you.
Damp control
No reviews yet
Extension Builder in Lowestoft
Damp control. working in the Lowestoft, Great Yarmouth and Norwich areas /condensation problems/ damp proof injection /wood worm treatment /plastering/ internal and external wall insulation/cork spray insulation. 30 years experience
Get in touch
Ace installations
Rating: 5 out of 5
Extension Builder in Lowestoft
Aceinstallations setting the standards! Quality and pride from start to finish. from glass replacement to to fully designed conservatory’s. We supply and install upvc products in east Anglia.
Get in touch
Latest review:
Windows & Doors (uPVC & Metal)- 16 Mar 2019
Gary supplied and fitted our replacement windows and we were very pleased. He charged a good price and we will be using him again in the future.
KX property services
Rating: 5 out of 5
Extension Builder in Lowestoft
General building work, renovations, driveways, kitchen, bathroom, plumbing, heating systems, heritage, new build, extensions
Get in touch
Latest review:
Tiling- 1 Aug 2019
Dan(boss) and John completed my work ahead of schedule. My wife and I were extremely pleased with the quality of work completed by them. Dan and John worked extremely well as a team and their interaction with the customer was excellent. Also, their professionalism and commitment to do a good job was evident and nice to see. At the end of the job, they left the work site very clean and tidy. Absolutely no complaints - and I would have no hesitation in recommending them to others.
Shane parker
Rating: 5 out of 5
Extension Builder in Lowestoft
Shane parker Home and Garden. Extensions, Conversions, groundworks and Landscaping. Clean, reliable and friendly service. Quality workmanship with attention to detail with 15 years knowledge and experience In all aspects. free quotations
Get in touch
Latest review:
Hard Flooring- 3 Mar 2026
My builder is a maze of trades but Shane is an individual who has surpassed expectations Exceptional attention to detail very knowledgeable and extremely patient with customers bruised by other trades Job well done
The Rural Construction Company (Anglia) Limited
Rating: 5 out of 5
Extension Builder in Lowestoft
With over 25 years experience and a hard working team of tradesmen we take on all aspects general building work including New builds, extensions, loft conversions, restoration work, barn conversions, renovations, structural/steel work, alterations, heritage work, damp proofing and groundworks. We are fully insured and provide a prestart pack with every job including a comprehensive builders contract.
Get in touch
Latest review:
Conversions - General- 21 Aug 2020
Luke has been excellent throughout, particularly in the organisation of putting in the steelwork, which was complex, but he seems to have lots of experience with this type of project. We have an old house with lots potential Unknown’s along the way, but nothing has phased him and always good alternative ideas if necessary and never seems to panic. His standard in all areas of our project is excellent. Cannot recommend him highly enough and without question will be having him back when we require further work in the future.
Vivabuilder
Rating: 5 out of 5
Extension Builder in Lowestoft
Hello my name is Tom owner and operator of viva builder I do a range of trades including plastering, bricklaying , painting , damp work , loft insulation, conversions , bathroom fitting and kitchen fitting all aspects considered I’m always on time I work very hard to meet the customers demands Come with viva builders and you won’t go wrong
Get in touch
Latest review:
Insulation- 8 Apr 2026
Tom at Viva Builders did an absolutely lovely job of the loft and boarding & even did some siliconing in the kitchen that I added to his list. Competent, efficient, friendly and left everything clean and tidy. Will definitely use VB again.
P A LEE
Rating: 5 out of 5
Extension Builder in Lowestoft
I have been in the building trad for over 30 years and pride myself on quality building and customer satisfaction, I have recently been involved in site management so therefore carry all relevant safety certification as I believe working safe is paramount when dealing with customers in and around there property.
Get in touch
Latest review:
Patrick built my kitchen, extension and put down new slabs. Myself and my partner absolutely love it. I am more than happy to recommend Patrick, I wouldn’t use anybody else.
GBR in construction LTD
No reviews yet
Extension Builder in Lowestoft
We really do pride ourselves as hardworking individuals with an eye for detail. What really sets us apart from other businesses is our can do attitude with great customer services.
Get in touch
j Hansen
No reviews yet
Extension Builder in Lowestoft
Hi I’m a fully qualified carpenter and builder with 30 years experience. I work to the highest standard on all jobs big or small . Friendly reliable survice
Get in touch
Nick Hawkes
No reviews yet
Extension Builder in Lowestoft
Hi all I’m small building firm after years of working for other building companies on private extensions to new builds I thought it was time I finally did work for myself. I undertake all aspects of the building trade and for the jobs I can’t do myself I have hand selected the other trades to guarantee the job gets done to the highest standard
Get in touch
Stellan Group Ltd
New on MyBuilder
Extension Builder in Lowestoft
Stellan is a trusted East Anglia refurbishment and home improvement specialist led by a Chartered Builder with over 25 years of industry experience. We combine professional project management with reliable local craftsmanship to deliver work that feels organised, stress‑free, and built to last. Whether you’re renovating a single room or transforming your whole home, we bring clear communication, honest advice, and a commitment to quality at every stage. Our approach is simple: listen carefully, plan thoroughly, and execute with precision. From structural alterations and refurbishments to kitchens, bathrooms, and outdoor projects, we manage the details so you can enjoy the results. Homeowners choose Stellan for our experience, our standards, and our genuine care for the homes we work on. If you want a team that turns ideas into well‑finished, well‑managed projects, we’d be proud to help.
Get in touch
GGH
No reviews yet
Extension Builder in Lowestoft
Hello there, With a broad variety of knowledge and skills with 20 + years experience in the construction industry from brickwork, carpentry, groundworks, decorating and more. We deal with extensions, renovations and remedial work all to a high quality finish and standard. Feel free to get in touch with any questions or queries. Many thanks.
Get in touch
Beckett Builder
No reviews yet
Extension Builder in Lowestoft
We are a Local Firm of Professional Builder & Landscaper serving Lowestoft Gt Yarmouth Beccles & Surrounding Areas. We pride ourselves on our high standard & quality of work, whilst keeping our prices competitive & at an affordable price to you.We are friendly, trustworthy and work cleanly ensuring the least disruption to you, whatever work you are having done. We have a reputation for outstanding customer relations – most of our many satisfied clients came to us through recommendations.
Get in touch
Jl building services
No reviews yet
Extension Builder in Lowestoft
Local building/plastering company working in lowestoft and suffounding areas. covering all aspects of building works from patios,tiling,plastering,landscaping,brickwork, and extensions to full renovations. Free no obligation quotes given.
Get in touch
M J Builders
No reviews yet
Extension Builder in Lowestoft
30 years experience in construction, building houses, extensions, conservatories, internal renovations, drives, plus many more
Get in touch

Top rated Extension Builders

Our Extension Builders in Lowestoft, are rated 1 out of 5 based on 1 review 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 Lowestoft?

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

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

What are the hourly rates of extension builders in Lowestoft?

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

Find extension builders in Lowestoft with MyBuilder

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

Step 2: Compare different extension builders in Lowestoft

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

Step 3: Hire Lowestoft extension builders with confidence

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

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

What to ask a Lowestoft extension builder before hiring?

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

An extension builder in Lowestoft 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 Lowestoft 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 Lowestoft?

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 Lowestoft 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 Lowestoft 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 Lowestoft

Can an extension builder in Lowestoft help with planning permission?

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

Many Lowestoft 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 Lowestoft help with materials and finishes?

Yes, most extension builders in Lowestoft 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.