Extension Builders in Penryn

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 5 (2 reviews)

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Some of our top rated extension builders in Penryn

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Pendragon Builders Limited
Rating: 5 out of 5
Extension Builder in Penryn
I carry out a wide range of building work. From basic building maintenance to new build houses. Specialist flat roof installation, commercial and domestic. I can prepare drawings for planning applications and building control. With over 30 years experience in many trades.
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Latest review:
Extensions- 10 Nov 2019
Great service, willing to listen to ideas and adapt where needed. Kevin and the team have worked around us using the house as a childminding business and planned each stage of the build to minimise disruption. They have inputed their design ideas which as made the extension even better than planned! The quality of the building work is very good. I would recommend them.
GLD Building & Maintenance
No reviews yet
Extension Builder in Penryn
We are a family run company who ensure flawless construction and joinery services. From smaller scale renovations right through to large extensions and ground work with an innate eye for detail. The team have all worked within the industry for a number of years enabling us to produce high quality workmanship for our valued clients. Letters of recommendation from previous clients can be ascertained for reasurance as we are yet to upload pictures due to being new to the website.
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Polyseal Construction Ltd
Rating: 5 out of 5
Extension Builder in Penryn
Family construction business established over 50 years ago. We cover the whole of Cornwall. Experienced builder & roofers. Experienced Glassfibre flat roofing specialist, commercial or domestic. Our main focus is to provide a professional, efficient service at the correct price.
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Latest review:
Groundwork & Foundations- 18 Mar 2026
5 stars would recommend. Very efficient.
5 star building
No reviews yet
Extension Builder in Penryn
I've been building for 18 years and very good at what I do and i take alot of pride in my work but anyone can write stuff to make them stand out from others but it's proving yourself on the tools and that's what will make me stand out from the rest
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Mulmont Construction
Rating: 5 out of 5
Extension Builder in Penryn
Nvq level 2 bricklayer with over 10 years experience. Will get the job done fast clean and to a high standard.
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Latest review:
I had a garden wall which was falling to pieces and needed taken down and rebuilding. I approached Mulmont Construction for a quote - Ross and Liam attended when they said they would to provide the quotation, both very friendly and enthusiastic. When the works began they were very pleasant and respectful of our property - they were clean and tidy throughout the job and the garden wall is looking beautiful again! Thank you very much Ross and Liam - would highly recommend.
TMS Services SW
No reviews yet
Extension Builder in Penryn
Professional Building Contractors offering a complete service following all CDM and HSE guidelines
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Goldleaf of Cornwall Ltd
No reviews yet
Extension Builder in Penryn
Our projects Include both modern construction and period buildings. We repair, restore or renovate buildings constructed using traditional and modern materials and techniques.From cob, lime, stone & timber to modern steel and timber frames. We have decades of experience in working to enhance and preserve Cornwalls wonderful and varied building heritage. We work with architects and listed building surveyors to build/restore beautiful, functional structures offering a complete service.
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Christophers And Sons
No reviews yet
Extension Builder in Penryn
Friendly and family run business with experience in all aspects of building from, new build, Barn conversions, Extension and variety of smaller jobs. over the years we have managed to build very reliable and skilled team. Instergram - christophersandsonscontracting
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Cornwall Carpentry & Flat Roofing
No reviews yet
Extension Builder in Penryn
We specialise in New builds Extensions Renovations Flat Roofs Pitched Roofs Cladding Decking All works are insured and come with guarantees
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Mehrivan Lagos Group
No reviews yet
Extension Builder in Penryn
We are a team of civil engineers with strong international experience in construction, refurbishment, and architectural finishes. With over 18 months of hands-on work in the UK, we have contributed to one of the country’s largest precast architectural fabrication operations. Before that, we successfully delivered more than 42 projects across Iran and Nigeria, ranging from residential renovations to large-scale commercial developments. Our background in engineering ensures that every project is completed with precision, structural understanding, and high-quality workmanship. We bring a global perspective, strong technical skills, and a commitment to delivering reliable, professional refurbishment and decoration services for every client.
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Beaulen Construction
Rating: 5 out of 5
Extension Builder in Penryn
Welcome to BREACH CONSTRUCTION where we offer full carpentry and construction services including kitchens, doors, stairs, skirtings, architraves, deckings, timber frame and much more! All jobs considered from residential to commercial. Whatever the size. With a good network of skilled tradesman, full projects completed to a very high standard. Get in touch today!
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Latest review:
Carpentry- 28 Oct 2022
Joe responded very promptly and met on site to discuss the works and agree a price in advance. He began the works on the agreed date and completed within the forecast time frame. He was happy to return later to make some minor adjustments. He is a proficient and tidy worker.
Lemara Developments
Rating: 5 out of 5
Extension Builder in Penryn
Hello, my name is Paul. I have over 15 years experience in the building trade. I am friendly, reliable and always complete work to the highest of standards. I take great pride in being able to offer a high standard of work at competitive prices. From a leaking tap to a full bathroom installation or a small plaster repair to a complete new build. Please get in touch for a free quotation.
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Latest review:
Plumbing- 22 Jan 2021
work completed and he was very professional. Very reasonable price as well.
Cornwall Bespoke Limited
No reviews yet
Extension Builder in Penryn
Cornwall Bespoke have been providing first class building and joinery services throughout the South West since 2007. Our team of experienced craftsmen are backed by the region’s leading suppliers – ensuring that each and every job we undertake, big or small, is carried out to exceptionally high standards
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Charlie glasson carpentry & construction
No reviews yet
Extension Builder in Penryn
Hi , I’m Charlie glasson And have been self employed for 10 years , was employed for 9 years before that where I completed my apprenticeship, Carpentry is my specialty, but have had the opportunity to work with some great lads to complete extensive extensions , renovations and new builds
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Chris mattison
No reviews yet
Extension Builder in Penryn
Hi I'm Chris, I have over 30 years of building experience. I am a level 3 city and guilds CSCS Gold card holder . My speciality is brick ,block and stone , lime mortor pointing speclist in lime breathable pointing. stone cladding. Quality comes first no matter how long it takes. We turn up everyday even in the bad weather there is always something to do! I always finish every job before we start another . Communication with my clients comes first.
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Rob Brown
No reviews yet
Extension Builder in Penryn
I am a fully qualified mason with experience of building in new builds,renovations and extensions. All jobs are looked at with a friendly and professional service.
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Top rated Extension Builders

Our Extension Builders in Penryn, are rated 5 out of 5 based on 2 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Penryn?

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

Find extension builders in Penryn with MyBuilder

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

Step 2: Compare different extension builders in Penryn

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

Step 3: Hire Penryn extension builders with confidence

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

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

What to ask a Penryn extension builder before hiring?

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

An extension builder in Penryn 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 Penryn 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 Penryn?

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 Penryn 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 Penryn 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 Penryn

Can an extension builder in Penryn help with planning permission?

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

Many Penryn 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 Penryn help with materials and finishes?

Yes, most extension builders in Penryn 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.