Extension Builders in St Albans

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.7 (12 reviews)

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Some of our top rated extension builders in St Albans

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Navid
Rating: 5 out of 5
Extension Builder in St Albans
We are a reliable and experienced team offering a wide range of building, renovation and property improvement services. Our work includes welding and metal fabrication, canopies, garden rooms and outdoor structures, full bathroom renovations, complete property refurbishments, tiling, laminate flooring, carpentry, plumbing, kitchen fitting, damp removal and damp proofing. We can also provide all materials needed for the job, so if you prefer, we can take care of everything from start to finish. We always aim to work cleanly, professionally and to a high standard. Our work is guaranteed, and if there is any issue related to our workmanship, we will come back and put it right. We believe in fair prices, honest advice and doing the job properly the first time.
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Latest review:
Bathroom Fitting- 27 Sep 2026
Prompt attention, excellent job done. Very flexible and adaptable. Neat job done with excellent finish. I am very pleased and satisfied with the work done by Navid.
Ridgewell Roofing and Building Ltd
Rating: 4.9 out of 5
Extension Builder in St Albans
Ridgewell roofing and building ltd is a family owned and run business, we strive for perfection in the quality of our work , competitive pricing and customer satisfaction , no job is too big or too small , we do all types of roofing , from flat roofs in felt rubber fibreglass, pitched roofs repointing leadwork valleys and general maintenance feel free to get in touch
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Latest review:
Roofing (Pitched)- 24 Sep 2026
I am pleased with the work. They completed the project within the agreed timeframe. What impressed me most was their customer service. If you have any questions or concerns about your roofing, James is always quick to respond and resolve any issues, giving you real peace of mind. You never have to worry about chasing them for updates or support. I would recommend Ridgewell Roofing and Building Ltd to anyone looking for quality roofing work.
Hylton Chimneys Ltd
No reviews yet
Extension Builder in St Albans
We are a loft and extension specialist.
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Vali colour
Rating: 5 out of 5
Extension Builder in St Albans
Hello my name is Vali , I have been working in the construction industry 20+ years in this time I have run a small business in Italy ,built houses in Romanian and I am currently working in London as a bricklayer .
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Latest review:
Bricklaying- 1 Oct 2019
Excellent work on budget and time
Berkhamsted Construction Ltd
No reviews yet
Extension Builder in St Albans
My name is Matthew Thomas and I have been involved in the construction industry for over 30 years now, leading my experienced team based in Berkhamsted we cover an approximate 15 mile radius. The team includes all of the trades required to complete a project from start to finish including ground workers, brick layers, carpenters, roofers, plumbers, electricians, tillers, decorators and specialist trades not forgetting landscapers to carry out that finishing touch to complete the project to perfection leaving the client to relax and enjoy their environment. We have many satisfied customers who are very happy to show off our work and recommend us. Helen: Loft Conversion. Hi Matt, realized that I've not said thank you for everything, I thought we'd see you again. Thanks so much for a brilliant build 🙏. Clare: Complete Refurbishment, Hey Matt! Thank you so so much for everything. We absolutely love what you and your team have done! It’s transformed it completely! We’re so impressed with all the bespoke work with the cupboard in the hall and for the fuse box. It’s amazing. Thank you so much!
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Carpenter quality
Rating: 5 out of 5
Extension Builder in St Albans
CARPENTER QUALITY LTD •SPECIALISED IN EXTENSIONS •LOFT CONVERSIONS •BESPOKE CARPENTRY •KITCHEN & JOINERY •NEW BUILD & REFURBISHMENT
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Latest review:
Carpentry- 7 Sep 2026
Excellent service Reliable and did a great job Thoroughly recommended
PremierBuild Developments
No reviews yet
Extension Builder in St Albans
PremierBuild Developments LTD is an established building company based in Hemel Hempstead, Hertfordshire but also covering all surrounding counties & London.
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N M Building and Roofing Ltd
Rating: 5 out of 5
Extension Builder in St Albans
Hi we are n.m building and roofing we are a family business that undertake all building / roofing / and / landscaping work all our quotes are free and all work is guaranteed we have many 5 star testimonials for our work we have been working with many happy customers for over 20 years we look forward to hearing from you many thanks Neil N.M building we are also a 5 star approved with trust a trader
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Latest review:
Landscaping- 12 Aug 2024
Neil provided a professional assessment of the job, quoted and carried out the work in a honest and professional manner. Good job tidied up a and provided good advice after the work was completed. I would recommend N M Building and Roofing Ltd
DCH RENOVATION LTD
No reviews yet
Extension Builder in St Albans
Welcome to DCH Renovation LTD At DCH Renovation LTD, we take immense pride in transforming dreams into reality. With a commitment to excellence and a passion for construction, we are your trusted partners in bringing your vision to life. Our team of skilled professionals is dedicated to delivering high-quality construction and renovation services that exceed expectations. Our Mission At the heart of DCH Renovation LTD is our unwavering mission to provide unparalleled construction services with integrity, innovation, and an unwavering commitment to quality. We strive to be the builder of choice, creating spaces that inspire and endure.
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Enzo Build Solutions Ltd
Rating: 5 out of 5
Extension Builder in St Albans
Enzo Build Solutions Ltd is a reliable, family-run building company providing high-quality workmanship across all aspects of construction and property improvements. We specialise in renovations, extensions, kitchens, bathrooms, carpentry, plumbing, electrical work, painting & decorating, and general maintenance. We take pride in delivering honest, professional service with attention to detail from start to finish. Customer satisfaction is our priority, and we aim to complete every project on time, on budget, and to the highest standard. No job is too big or small
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Latest review:
Bathroom Fitting- 27 Sep 2026
John recently installed a new bathroom and kitchen and built an understairs toilet room for us. He also did many smaller jobs including rewiring, plastering, roofing jobs. From beginning to end we were blown away by John's work. He was very fast but also never compromised the quality of the work which was always impeccable. He advised us the whole way about the best quality materials to buy and, when things went wrong (tiles not arriving on time etc), he was really helpful and gave great advice on how to deal with any problems. He was also just such a pleasure to work with! He always ensured that the area was very nice and clean after finishing a task. Would highly recommend John to family and friends (and already have done!) and I'm sure we will have him back in the future. Very reliable and trustworthy builder!
DJ Cox Building Services Ltd
No reviews yet
Extension Builder in St Albans
All building work, extensions, loft conversions, electrics, plumbing, plastering, bricklaying, patios, drives, bathroom & kitchen fitting, fencing.
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Miro Builder's UK Limited
New on MyBuilder
Extension Builder in St Albans
Hello! My name is Mirosław, and I am the founder of a trusted local construction company. With over 20 years of hands-on experience in the building industry, I take pride in delivering top-quality craftsmanship and stress-free service to every client. We handle every project with complete care, precision, and dedication. What We Specialize In: Turnkey Home Builds: From laying the foundation to the final decorative touches, we build complete custom homes from the ground up. House Extensions: Need more room for your growing family? We design and build seamless single- or multi-story additions that perfectly match your existing home. Driveways & Paving: Durable, beautifully finished block paving, resin, and gravel driveways that instantly boost your property's curb appeal. Gardens & Landscaping: Complete outdoor transformations, including patios, retaining walls, fencing, and custom garden layouts. Why Work With Us? 20+ Years of Experience: Solid expertise you can count on at every stage of the build. Complete Project Management: We handle everything from start to finish so you don't have to stress about coordinating different contractors. Quality & Reliability: Clear communication, honest timelines, and high-standard workmanship.
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Perparim
Rating: 5 out of 5
Extension Builder in St Albans
An established bricklaying business offering all aspects of bricklaying services in and around London and the south east areas. We are reliable,friendly, professionals that take pride in our work and guarantee jobs to the highest standards
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Latest review:
Great work, good communication skills very happy with the service Job got completed on the promised timescale
Hancock Developments ltd
Rating: 5 out of 5
Extension Builder in St Albans
Builders with over 20 years experience in Building and Groundworks. No job too big or too small. From concept to complete build. Groundworks, Brickwork, Carpentry, Plumbing, Landscaping, Driveways,Patios,Demolitions, Extentions, Interiors, Loft Extensions/Conversions, Clearance, Electrics, Roofing
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Latest review:
Carpentry- 13 Oct 2019
Jake and his brother Robbie are both friendly trustworthy individuals. They completed my loft conversion swiftly and both demonstrated they know what they are doing. Have had them back for other work since and would use again.
ArhiTERRA design and build
Rating: 5 out of 5
Extension Builder in St Albans
We are a family business with a dedicated team specializes in works of any size ranging from the design through to building process. Our experience is vast and we stand for fast and high quality services beeing in construction industry for over 10 years . The following services are available: -design and build of extensions and lofts, -refurbisments, -swimming pools and outdoor spaces -landscape design More details can be found on our website.
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Latest review:
Architecture- 5 May 2018
Contracted to provide options for a new garage office and storage solution. They turned up promptly and were very polite and professional. Through many discussions they ultimately offered up a very good bespoke solution for our situation and once planning is approved we will have no issue with looking to them to complete the actual build. We have had a lot of issues in the past finding reliable trades but with ArhiTERRA design and build we felt confident in their ability to both visualise and implement the build as well as follow through on their promises. I would say that for anyone considering discussing a project with them that it is worth your time to at least have a meeting with them and judge for yourself.
Parker
No reviews yet
Extension Builder in St Albans
Bricklayer by trade . But have been given the chance to learn the whole game from footings to ridge tile , back all the way down to finishing the landscaping out to the gates . Know the game very well . 25 years learnt straight from school
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3.7

Top rated Extension Builders

Our Extension Builders in St Albans, are rated 3.7 out of 5 based on 12 reviews from customers like you.

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

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 St Albans 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 St Albans who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in St Albans?

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

Find extension builders in St Albans with MyBuilder

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

Step 2: Compare different extension builders in St Albans

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

Step 3: Hire St Albans extension builders with confidence

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

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

What to ask a St Albans extension builder before hiring?

Before hiring an extension builder in St Albans or extension building company in St Albans, 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 St Albans?

An extension builder in St Albans 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 St Albans 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 St Albans?

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 St Albans 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 St Albans 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 St Albans

Can an extension builder in St Albans help with planning permission?

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

Many St Albans 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 St Albans help with materials and finishes?

Yes, most extension builders in St Albans 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.