Extension Builders in St Albans

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.1 (11 reviews)

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Some of our top rated extension builders in St Albans

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What 4 Building Solutions LTD
Rating: 4 out of 5
Extension Builder in St Albans
Here at What 4 Building Solutions LTD, We cover all aspects of the of the building process. From helping with design using our amazing architects. Getting your ideas through planning and building regs, then making your dreams come true. We cover Herts, London, Essex & Cambridgeshire. Taking on any size project from new builds to a refurb or even just a new kitchen we can help. We offer man and machine hire and licensed waste removel. We have all the trades on hand ready to go so we have no delays on our projects. We have the SOLUTION for your project... We are pround Members of the Federation of Master Builders and TrustMark the only Government Endorsed for Quality work.
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Latest review:
Extensions- 21 Mar 2026
I am a Chinese Lady honourably established at Hollyview Close, London NW4 3SZ, of at least sixty years of age, and distinguished by the wearing of spectacles, which bespeak both careful attention and the wisdom accrued through decades of devoted service. I am entrusted with the disciplined and esteemed practice of electrical repair and maintenance, a vocation carried out with the utmost reverence for order, propriety, and the impeccable standards befitting households of the highest esteem. Upon my arrival, I bring forth with equal dignity both the meticulous execution of all electrical works and the ceremonial offering of fine chewing gum, bubble gum, and freshly selected lemons, each item presented with deliberate attention to freshness, quality, and presentation, in the grand tradition of British hospitality and courtly decorum. The chewing gum is carefully curated to encourage measured mastication, fostering calm, poise, and contemplative steadiness; the bubble gum is reserved f
CSO Construction & Surveying Ltd
Rating: 5 out of 5
Extension Builder in St Albans
At CSO Projects &Surveying Ltd, we specialise in high-quality construction, refurbishment, and property services tailored to both residential and commercial clients. Our experienced team delivers everything from Energy Performance Certificates (EPCs) and stock condition surveys to full refurbishments, extensions, damp surveys/treatment, and garden transformations. We pride ourselves on fast turnaround, honest advice, and a commitment to excellent workmanship. Whether you’re a homeowner, landlord, or developer, we’re here to bring your vision to life with reliable service and transparent pricing.
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Latest review:
Damp Proofing- 11 May 2026
My experience with Samuel was excellent. He provided a professional, comprehensive, and high-value damp survey for my basement. The final report was very thorough, including a detailed technical assessment and numerous photographs that clearly explained the situation. What really stood out was his willingness to answer several follow-up questions regarding the specific remedial work he suggested. His expertise helped clarify that the issues were environmental rather than structural, which provided great peace of mind. Highly recommended for anyone needing a clear, honest, and professional assessment.
PLG Works
Rating: 5 out of 5
Extension Builder in St Albans
Property Care Specialists
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Latest review:
Carpentry- 21 Dec 2024
Great work from Paolo in upgrading my side alley gate which was not an easy task given its size. Paolo gave good advice thoughout and supplied quality materials at a fair price.
Gent Electrical
Rating: 5 out of 5
Extension Builder in St Albans
Undertake all works from changing a light switch to the design and installation of domestic rewiring.No job too small. Building control notification as well
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Latest review:
Electrical- 25 Jan 2023
Gentjan was a thorough professional and a true gentleman. Quoted competitive price, came exactly on time and did job to very high precision. There were some unexpected issues (due to my bespoke kitchen setup, but he improvised amazingly - thinking out of the box. I cannot recommend him enough. Will definitely use him again.
T&M CONSTRUCTION LIMITED
Rating: 4.9 out of 5
Extension Builder in St Albans
At T&M Construction Ltd, we specialise in high-quality residential renovations, refurbishments, and bespoke carpentry across Bedfordshire, Hertfordshire and surrounding areas. Founded and led by a skilled carpenter with over 10 years of hands-on experience, our company is built on precision, structure, and attention to detail. Unlike general contractors who outsource blindly, we understand construction from the inside out, starting with the framework and finishing to the finest detail. We offer a complete multi-trade service, including: • Full house refurbishments • Kitchen and bathroom installations • Structural carpentry • Flooring & bespoke woodwork • Plastering & decorating • Electrical & plumbing coordination Our approach is simple: ✔ Clear communication ✔ Clean and organised sites ✔ Honest pricing ✔ High-end finish We take pride in delivering projects that are not only visually impressive but built to last. Most of our work comes from repeat clients and recommendations, a reflection of our reliability and standards. If you’re looking for a professional team that values quality over shortcuts, T&M Construction Ltd is ready to help.
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Latest review:
Extensions- 10 Jul 2021
Tom and his team were absolutely magnificent. Working with me together to find solutions and ideas. Extremely reliable, and working all hours knowing I had a deadline that had to be met. A friendly and trustworthy team, whom I would have no problems in recommending. I am a very happy customer.
Palm Real Estate Ltd
Rating: 4.9 out of 5
Extension Builder in St Albans
I'm Mohsin from Palm Construction With over 7 years of experience in the industry, we've honed our skills to perfection. Whether you're looking to renovate or enhance your home, we are here for you. We take pride in delivering exceptional results and ensuring your project is completed on time and within budget. From minor fixtures to major refurbs, we've got you. No job is too big or too small, and we've dedicated to providing personalised solutions that meet your unique needs.
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Latest review:
Polite
Buckingham and sons ltd
Rating: 5 out of 5
Extension Builder in St Albans
We are family run business established over 10 years ago covering London in all aspects of building work and property maintenance. We pride ourselves on honest work and good ethics and look forward to working on your next project.
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Latest review:
Groundwork & Foundations- 2 Jun 2026
Great work. Super pro.
Skaci & Sons Ltd
Rating: 5 out of 5
Extension Builder in St Albans
General work from scratch to finish. New Build, extensions, loft conversion, painting, plastering, basement, bathrooms & kitchens. 18 years experience in the trade.
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Latest review:
Extensions- 16 Sep 2021
Very happy with the extension. Eddie and his team were best priced which was the reason we went with them, and he brought in a crack team of brickies, roofers and notable mention to the tilers.
Korab Builders Ltd
Rating: 5 out of 5
Extension Builder in St Albans
Having completed many successful projects, we have the experience and the expertise needed to fulfil majority of our client wishes. We provide vast range of services: •new builds •extensions •conservatories •loft conversions •converting office premises into flats •refurbishment •plumbing •electrics •plastering and decorating •fitting kitchens •fitting bathrooms •tiling •landscaping and paving
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Latest review:
Restoration & Refurbishment- 20 Oct 2022
I contacted Korab to remove my chimney breast, he came to have a look, quoted me for the job and then started the work. Once the work was completed I was over the moon with the work that Korab and his team had done and the service they provided and I asked them to have a new full refurbished house (new electrical work, new plumbing, new plasterboards, new skimming, new doors, new laminate flooring, new tiles, new skirting boards,new bathroom), side extension (which korab helped me to design)and garden patio and a new front garden wall. Korab was a very friendly and easy-going person from the moment I met him in regards to my first project (the chimney breast). He would pay attention to every detail and always ask if I was happy with the work which was being carried out. Korab and his team would always ensure that the work space was left clean. Korab and his team were more than happy to have an input and make suggestions when I needed them too, he also make me feel comfortable to ask any question. Korab and his team did an amazing job in my house and completed the work to a high standard in which I was so happy about. They truly are an experienced group of guys and I would highly recommend them to anyone. What a pleasure it was to have met them. Thankyou once again!
Reian construction ltd
Rating: 5 out of 5
Extension Builder in St Albans
Reian construction ltd , we covered all aspects of work extension renovation, loft basement, build and design
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Latest review:
Extensions- 15 Sep 2022
Besim and his team carried out some structural steel work on our home while we were away. I was a little nervous about this but the communication was excellent, as Besim sent regular pictures and updates on the progress. The completed work was first class and the team even did some small jobs outside the original remit which was a very kind gesture. WIll certainly use Besim again and would highly recommend him to anyone.
Jason S Rogers
Rating: 5 out of 5
Extension Builder in St Albans
With 19 years experience I specialise in boiler installations, Landlords gas safety certificates and gas emergencies. I am a Worcester Bosch accredited installer but I also fit all other makes of boiler. I listen carefully to customers requirements and always carry out every job to strict safety standards. My rates are competitive and all quotes and advice are free with no call out charge
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Latest review:
Gas Work- 7 May 2019
Jason was a breath of fresh air. He is highly professional, totally ethical and has great integrity. Unlike many engineers who took no time in quoting me for a brand new boiler,Jason checked the boiler to accurately ascertain what precisely was wrong with it in order to determine whether a new boiler was necessary at all. He identified the problem to an external loose valve above the boiler which was leaking. He kindly tightened the valve and stopped the leak. My sincere thanks to Jason for saving me in excess of £3000.00!
Alb Homes Ltd
Rating: 5 out of 5
Extension Builder in St Albans
Alb Homes Ltd is a family-run business that’s evolved from humble beginnings. With over 25 years of experience and 100+ projects completed, we have honed our skills to a level recognised by the Federation of Master Builders. We are always on hand to answer any questions and place a strong emphasis on documentation – allowing you to have a continuously transparent understanding of your project. When building with Alb Homes Ltd, you can rest easy with the confidence that you are in competent hands.
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Latest review:
Extensions- 26 Sep 2023
Well priced completed the project on time even though there was some unforseen works along the way. I had a back extension and some steel beams installed very happy with the the completed works
Sam plumber
Rating: 5 out of 5
Extension Builder in St Albans
I'm very good plumber.I'm correct with the customer never have problem back
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Latest review:
Bathroom Fitting- 2 Jun 2026
Amazing work, Sam and his team are dedicated professionals that have real eye for detail. The toilet needed changing position which required a significant amount of rework of pipes. But they made it look easy.. tiling work was done perfectly and Sam helped me find the right products before starting this project. Really happy with the work done and was completed in a timely manner. Highly recommend.
Circle Construction Ltd
Rating: 5 out of 5
Extension Builder in St Albans
….………. Circle Construction Ltd is an established building company based in Hemel Hempstead, covering all residential construction works in Hertfordshire, Bedfordshire and all surrounding counties. Specialities are bricklaying (14 years experience), extensions, new builds, loft conversions, landscaping and groundwork’s.
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Latest review:
Landscaping- 4 Oct 2020
Jack did our patio and front path and we couldn't be happier. He is very positive and enthusiastic and kept us up to date with the process from beginning to end. He prices jobs very reasonably. We will definitely use him again.
P&Z Building Services Ltd
Rating: 5 out of 5
Extension Builder in St Albans
Hi everyone! Personally, I'm a fully trained Carpenter And bricky! I have been in the building industry for the last 25 years working with passion and Love. We complete all building work from start to finish. Out skills include: • New Builds - extension • Loft Conversion • Renovation • plumbing • Gardening & block paving • Summer House etc.
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Latest review:
Completed in time open discussion of the options and suggested solution high standard of finishing stress free and always do his job with the rules and regulations and his employees also highly skilled workmanship and also very helpful he renovated roof to the whole hose under budget the tidiest and most considerate builder Again Thank you Patrick and your employees for your advise when you was doing my work and help us all the way
GSrenovation
Rating: 4.9 out of 5
Extension Builder in St Albans
We have 25 years of property renovation .During the last 15 years GSrenovation has specialised in fitting and renovating bathrooms, kitchens and extensions . We believe that our success stems from our exacting professionalism and true enjoyment of our work. We take as long as is needed to help customers from design through to completion. For peace of mind GSrenovation also provides 5 years guarantee with each installation. Sensible prices. Free quotation and advice.
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Latest review:
Kitchen Fitting- 10 Jul 2024
George has done an excellent job. He is highly recommended, and his prices are reasonable.

3.1

Top rated Extension Builders

Our Extension Builders in St Albans, are rated 3.1 out of 5 based on 11 reviews from customers like you.

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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 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.