Extension Builders in Penzance

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Some of our top rated extension builders in Penzance

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Kings Construction
No reviews yet
Extension Builder in Penzance
We are a local business that covers every aspect of construction to a very high standard we offer competitive prices, feel free to get in contact for a free quotation, look forward from hearing from you.
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Beaulen Construction
Rating: 5 out of 5
Extension Builder in Penzance
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.
H2O plumbing and Heating
No reviews yet
Extension Builder in Penzance
I have been in the construction industry for the last 20 years covering all aspects of building work. loft conversions, extensions, kitchen and bathroom installation and renovation. I am also a qualified plumber and install all type of central heating/underfloor heating and unvented cylinder.
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Cobley construction
No reviews yet
Extension Builder in Penzance
Hi I’m dale self employed building contractor based in the Truro area who takes on all aspects of building contracts and plastering
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ADS Carpentry
No reviews yet
Extension Builder in Penzance
Hi, I am Tony and I am ADS Carpentry. I have over 13 yrs experience in the construction industry working both in the UK and overseas. I am skilled in various aspects of building work from residential to commercial builds as well as landscaping. I appreciate the need for effective communication and pride myself on the quality of my work, I am happy to advise on design and planning. No job is too big or too small!
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K Stevens Builders
Rating: 5 out of 5
Extension Builder in Penzance
45 years experience as a mason and general builder. Renovations, new-builds, ground works, drainage and landscaping.
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Latest review:
Extensions- 27 Jun 2024
Kev and Louis did a great job on our project. They were friendly, tidy and considerate throughout the work and were happy to accommodate changes and adjustments as requested. I would highly recommend!
Overland Construction (SW) Limited
No reviews yet
Extension Builder in Penzance
We are building contractor who will undertake new builds, extensions and loft conversions. All aspects of construction are considered with free advice and quotations. Fully insured and testimonials are available upon request.
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A1 carpentry services
Rating: 5 out of 5
Extension Builder in Penzance
Im a fully qualified carpenter with 20years experience. I cover all aspects of carpentry from cut roofs to kitchens. We also undertake renovation work from one room to a whole house.
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Latest review:
Hard Flooring- 24 Sep 2024
Very pleasant to have in my home, excellent job, no fuss, cleaned up after himself...a proper professional, thanks
Trevorrow Timber
Rating: 5 out of 5
Extension Builder in Penzance
Hi! I’ve been working as a carpenter and joiner for the last 15 years and a site Forman for 6 years on new builds, extensions and conversions. As an traditional oak framer by trade you can expect the highest quality of workmanship. I’m approachable, professional, honest and reliable. I have great contacts with trades, suppliers and building control to ensure your job get done on time and to budget. Look forward to working with you! Ben Trevorrow
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Latest review:
Carpentry- 3 Sep 2020
I would recommend Ben to anyone who wants a first class piece of joinery. Ben made 2 large double doors and replaced a section of decking. He moved his work around as the job was urgent, turned up when he said he would and worked late into the evening to get the job done. A first class service. Will most definitely use him again. Thank you, Ben.
Jon steer Carpentry and Joinery
No reviews yet
Extension Builder in Penzance
Qualified carpenter and Joiner of 32years experience specialising in traditional carpentry and joinery methods. All aspects of carpentry and joinery undertaken from studwork to furniture repair and restoration. Bespoke solid surface worktops manufactured. Full 3d CAD service included with any quote. Reasonable rates. Public liability insured up to £5m.
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DW Developments
No reviews yet
Extension Builder in Penzance
11 years experience in the building trade. Level 3 qualified carpenter. Extensive experience in all aspects of carpentry for new builds, renovations and extensions throughout Cornwall. This includes first and second fix carpentry, kitchen refits and laying flooring. Have access and good relationships with electricians, plumbers, roofers, plasterers, renderers and landscapers.
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Tamar Construction Ltd
No reviews yet
Extension Builder in Penzance
At Tamar Construction, our passion for high-quality building is evident in every project we undertake. We pride ourselves on consistently delivering exceptional finishes. Understanding that construction can disrupt personal spaces and create stress, we emphasise careful planning and outstanding craftsmanship to provide a seamless and professional experience for our clients. New Builds: We specialise in the construction of a wide array of new properties, from small builds and barn conversions to modest developments and luxury designs. Extensions: Our dedicated team is enthusiastic about turning your ideas into reality. Count on us for exceptional craftsmanship and customised solutions that will enhance your home. Groundworks: Our experienced team excels in comprehensive groundwork services, expertly managing excavation, foundation preparation, drainage installations, and site grading. With our precision and expertise, we establish a solid foundation for all your projects. Fencing: Discover a vast selection of fencing options to accommodate various budgets. From traditional wooden styles to modern metal designs, we offer versatile choices to enhance your outdoor space while ensuring quality within your budget. Renovation: Whether you desire kitchen transformations or bathroom upgrades, trust us to deliver precision and care. From minor enhancements to major renovations, your home improvement journey is in capable hands, ensuring a seamless and rewarding experience. Carpentry: Our team consists of highly skilled and qualified carpenters, ready to meet all your carpentry needs and deliver a superior finish.
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JATA Construction (Cornwall) Limited
No reviews yet
Extension Builder in Penzance
Building company offering in house architectural design for full design & build possibilities. We also offer separate design & separate building services. Both residential & commercial projects undertaken.
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TMS Services SW
No reviews yet
Extension Builder in Penzance
Professional Building Contractors offering a complete service following all CDM and HSE guidelines
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JAB Construction
No reviews yet
Extension Builder in Penzance
My name is Joseph Sands. Myself and business partner Ben Rickard are general builders with 10 years plus experience in the building trade. We offer a wide range of skills and services. Here at JAB construction we offer competitive rates and very high standards in our crafts.
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Spindrift Services
New on MyBuilder
Extension Builder in Penzance
We are Spindrift Services, established in 2026 after many years working individually as sole traders and successfully collaborating together for the past four years. Michael is a classically trained carpenter with 25+ years of experience in the industry. He has extensive knowledge across all aspects of construction and has completed a wide variety of projects, including doors, kitchens, bathrooms, roofing, extensions, conversions, outbuildings and much more. Liam has over 10 years experience, originally specialising in landscaping and external construction projects such as fencing, patios, walling, pergolas, and luxury treehouses. He later progressed into interior renovations, property conversions, and full rebuilds. We also specialise in the installation and remediation of fire doors and have worked extensively with hospitals, schools, and student accommodation across the UK. We pride ourselves on delivering high-quality workmanship with a premium finish while treating every client’s home with the same care and respect as we would our own. Reliability, professionalism, clear communication, and attention to detail are at the heart of everything we do. Please take a look through our gallery to see examples of our completed projects
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What types of services are offered by local extension builders in Penzance?

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

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

What are the hourly rates of extension builders in Penzance?

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

Find extension builders in Penzance with MyBuilder

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

Step 2: Compare different extension builders in Penzance

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

Step 3: Hire Penzance extension builders with confidence

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

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

What to ask a Penzance extension builder before hiring?

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

An extension builder in Penzance 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 Penzance 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 Penzance?

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 Penzance 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 Penzance 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 Penzance

Can an extension builder in Penzance help with planning permission?

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

Many Penzance 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 Penzance help with materials and finishes?

Yes, most extension builders in Penzance 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.