Extension Builders in Penzance

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Some of our top rated extension builders in Penzance

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Bastion Developments (Builders & Contractors) Ltd
Rating: 5 out of 5
Extension Builder in Penzance
We specialise in domestic and light commercial projects with 36 years in the construction industry. The managing director takes a very much 'hands on approach' to the work and who is qualified in Construction and Civil Engineering with an NVQ level 4 and has a NVQ Level 7 Diploma in Senior Construction Management. We carry out groundworks,drainage,structural repairs,new build extensions,accident damage repair,plastering and decorating,plumbing,carpentry and brick/block work. We use sub contractors for electrical and gas work and are also approved contractors by Trading Standards.
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Latest review:
Carpentry- 11 May 2026
Adam did a fabulous job replacing all the internal doors and the floors in my kitchen and hallway. It has transformed my home. He is friendly and professional and scrupulously honest, always letting us know when additional work would affect the estimate (which he absolutely stuck to otherwise). He worked round supply problems brilliantly and always kept us informed about when he would be working. He was a pleasure to have around and I will definitely be using him again.
KW carpentry
No reviews yet
Extension Builder in Penzance
At KW Carpentry, we specialise in all aspects of internal, external, and bespoke carpentry as well as general construction work. Our services cover a wide range of trades, delivered with a commitment to high‑quality workmanship at a fair and competitive price. No job is too small. We work closely with every client, tailoring our approach to suit your needs, your vision, and your budget to ensure the best possible outcome. Services include: • Structural work • First fix carpentry • Second fix carpentry • Kitchens • Bathrooms • Doors • Flooring • Blockwork • Extensions • landscaping
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AGB Carpentry
Rating: 1 out of 5
Extension Builder in Penzance
Hello my name is Alex. Carpenter by trade although have experience in most trades as I’ve been in the trades for about 11 years. I was employed for a few years and have recently decided to work for myself. I absolutely pride myself on finishing to the highest standards and am always looking for ways to increase both skills and knowledge. Below are jobs I cover: Extensions Renovations New builds 1st/2nd fix Carpentry Kitchen fitting Fencing Brick/block build Groundwork’s Soffit/Fascia/Guttering Loft conversion etc. I look forward to hearing from you. Please feel free to ask me anything! Thank you
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Marks masonry, groundwork’s and hard landscaping
No reviews yet
Extension Builder in Penzance
I’m a sole trader with masonry and groundwork’s skills, I pride myself on high quality work, if I’m going to do a job it’s going to be done right the first time. I’m Redruth and Camborne based but I can travel further if needed
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DWA Carpentry
No reviews yet
Extension Builder in Penzance
Over 20 years experience Fully qualified NVQ level 3 Carpenter. Timberframe specialist. Looking to take on Timberframe new builds & Extensions. First & second fix carpentry also welcome & Kitchens.
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RR Construction
No reviews yet
Extension Builder in Penzance
Hi I am Roy, I've been in the construction industry for 12 years. I specialise in extensions, full renovations, kitchen and bathroom fitting, drives and roofing. I am happy to work alongaide third parties or mangw projects myself. References and photos available on request.
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Webber and son builders Ltd
No reviews yet
Extension Builder in Penzance
We are a family run building company who specialises in new builds, extensions and house renovations. We have a team of trades in house including electricians, plumbers, carpenters, painters and decorators and roofers
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Oliver Group Construction Limited
Rating: 5 out of 5
Extension Builder in Penzance
With almost a decade of experience, OLIVER GROUP CONSTRUCTION LTD has established itself as a reliable name in the construction industry in Cornwall. Our team of professionals is committed to making your ideas come to life. Contact us today for a free estimate.
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Latest review:
Conversions - General- 23 May 2021
Reece and Jake have been fantastic. The quality of work and professionalism is second to none. I would happily recommend them (and will be using them again on another project in the near future). Job very well done thanks.
Temple Tradesmen
Rating: 5 out of 5
Extension Builder in Penzance
Welcome ! I'm Ryan Marlow, and I'm thrilled to introduce you to my company. With over a decade of experience in the southwest, I take immense pride in being a general builder and property developer. Since leaving school, I've built housing estates in and around Birmingham as a bricklayer. However, my move to Cornwall led me to diversify my skills in stone work, plastering, carpentry, patios, lime work, rendering, Extensions ,patios ,garden walls ,new builds, renovations and more. I work alongside a reliable and skilled team to ensure top-notch quality and timely project completion. Let's bring your vision to life! 💪 #GeneralBuilder #PropertyDeveloper #SkilledTeam foundations. Thank you for your time
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Latest review:
Bricklaying- 24 Apr 2026
Ryan came and repaired the damaged wall of the garage, and completed in good time. Left the site all clear, so very pleased
Kuggar stonemason
No reviews yet
Extension Builder in Penzance
I’ve been in the trade for 40 years I carry out new builds extensions renovation I work to high standard
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HLA Building
Rating: 5 out of 5
Extension Builder in Penzance
I run a small business of 8 staff we complete work to a high standard and to budget , I have a number of happy customers with references.full refurbishment, barn conversion, new builds plus all aspects of stone work under taken
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Latest review:
Plastering- 2 Jun 2026
Top quality and turn up on time.
Building With Frames
Rating: 5 out of 5
Extension Builder in Penzance
BWF build to the highest standards with environmental and energy efficient consideration at all times. New builds to extensions in the South West area, using SIPS and Timber Frame with integrated renewable technologies.
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Latest review:
Steve built an insulated, wooden-framed workshop/studio for us in our garden. We are delighted with the final result which is attractive and well finished despite being built to a tight budget. Steve is extremely knowledgeable, experienced and professional with impressive skills both practically and as a project manager. A real strength was his ability to listen, and respond, to what we wanted. We found him flexible and considerate, keeping mess to a minimum and communicating well with us throughout. He took a pride in his work and was completely honest and trustworthy. Our project was completed on time and within budget. We would definitely ask stteve to do work for us again and would recommend him to friends.
Cornwall Bespoke Limited
No reviews yet
Extension Builder in Penzance
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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Clive Oriordan Brickwork
Rating: 5 out of 5
Extension Builder in Penzance
Family run, and I’m a time served bricklayer. I have over 18 years experience. Projects include new builds, extensions brick restoration,brick walls feature brickwork . We do a lot of structural work also.as well as being professional brick layer ,I'm multi trade.I do not take deposits which helps build the trust straight away, and shows the confidence that i have in our work.Beat most people on price as we do the work ourselves. Out out of the box thinking helps us over Our competitors.
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Latest review:
Bricklaying- 26 Nov 2019
Clive was punctual, professional and effective, thanks
JBV BUILDERS LTD
No reviews yet
Extension Builder in Penzance
I have been in the building trade for 22 years , We do all aspects of building work . A friendly and reliable service , we take great pride in our work
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Jr Huston
Rating: 5 out of 5
Extension Builder in Penzance
Builder who loves their work and main goal is making customers happy, enjoy challenging jobs where I can really excel at
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Latest review:
JR and his team painted my house, installed a new external door, carried out rendering and plastering work, laid an extensive new patio, repaired a problematic flat roof, and erected a new balcony balustrade. They take pride in their work, insisted on doing a thorough job, and were unusually determined to resolve issues properly as they arose. They provided excellent value for money and were polite and hardworking throughout. I highly recommend them.

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.