Extension Builders in Hertfordshire

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.7 (13 reviews)

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Some of our top rated extension builders in Hertfordshire

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WHITE FEATHERS CONSTRUCTION LTD
No reviews yet
Extension Builder in Hertfordshire
White Feathers Construction is a trusted London-based building company carrying out all aspects of construction work to the highest standards. From home extensions and loft conversions to full refurbishments and new builds, our experienced team delivers reliable workmanship and honest service on every project. We take pride in turning our clients’ ideas into solid results — safely, efficiently, and with attention to every detail. At White Feathers Construction, quality and customer satisfaction are at the heart of everything we do. Whether you’re improving, extending, or starting from the ground up, we’ll ensure your project is built to last.
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Ahr construction Ltd
No reviews yet
Extension Builder in Hertfordshire
AHR Construction Ltd is a limited company that was incorporated in 2020. Their registered office is located at 183 Aubrey Road, Small Heath, Birmingham, England, B10 9DJ. We operate around m25 in greater London. We specialise in air-conditioning building freezer rooms and chiller rooms. We design build new restaurant. We have a competent team to take on any construction projects. We design and build bespoke bathrooms. Our specialist team helps you design and build your dream home.
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Ma bespoke driveways
No reviews yet
Extension Builder in Hertfordshire
Essex herts north Essex
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Hsb construction services ltd
No reviews yet
Extension Builder in Hertfordshire
Refurbished houses,loft conversion, extensions ,roofing
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A1 home improvement
No reviews yet
Extension Builder in Hertfordshire
Dear customer We doing everything with very proficiency and easy way where we can explain everything to clients very well We managed our all work and sites comples on time and with in our client budget Achieving 100 % of success rate Best wishes for all client
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Manmeet construction and design
No reviews yet
Extension Builder in Hertfordshire
“Resourceful builder with 5 years of experience in roofing, tiling, bathrooms, kitchens, floor fitting, painting, and garden constructions. Skilled in multi‑trade tasks from renovation to decoration. Known for precision, reliability, and delivering high‑quality workmanship under tight schedules.”
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A D FOD Construct
No reviews yet
Extension Builder in Hertfordshire
Hi, my name is Adrian, i am a highly skilled builder. I am reliable, honest and hard working. I don’t waste time and my quotes are competitive. Don’t hesitate to contact me!
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CSN construction 4u LTD
Rating: 5 out of 5
Extension Builder in Hertfordshire
CSN Construction 4u Ltd – Building Your Vision, Brick by Brick! 🏡 At CSN Construction 4u Ltd, we specialize in bringing your dream home projects to life. From house extensions to side extensions, and everything in between, we handle every project with care, expertise, and a commitment to excellence. 🔨 Our Services Include: Home Extensions Side Extensions Loft Conversions Renovations & Refurbishments General Construction Services Whether you're looking to expand your living space, enhance your property’s value, or create something entirely new, our team of skilled professionals is here to make it happen. 📞 Contact us today to discuss your project and get a free quote! Let’s turn your ideas into reality. 👉 CSN Construction 4u Ltd – Quality You Can Trust, Results You’ll Love!
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Latest review:
Extensions- 15 Dec 2025
Very happy with Csn Construction, he responded quickly and started the work quickly, within a week he managed to start the work and complete it! Very resonable price, I highly recommend!
Bains Brothers Construction LTD
No reviews yet
Extension Builder in Hertfordshire
Hello, we are Bains brothers, we don't just build structure, we build relationship. we always tell our new costumer to go see our jobs which we have finish and speak to our costumers about our work.
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Bajaj&son's trade Ltd
No reviews yet
Extension Builder in Hertfordshire
Hi, I'm mandeep bajaj a reliable and experienced tradesperson with a strong commitment to quality and customer satisfaction. I specialise in loft extension, driveway,garage,bathroom fitting, plumbing, tiling, etc.] and take pride in delivering high-quality workmanship on every job, no matter the size. With 10 years of experience, I have the skills and knowledge to complete your project efficiently and to the highest standards. I’m punctual, tidy, and respectful of your home, and I believe clear communication is key to a successful project. Whether you need help with a full bathroom renovation or a small repair, I’ll work with you to make sure the job is done right. Feel free to get in touch—I'd be happy to discuss your project and provide a free, no-obligation quote. --- Let me know if you'd like this tailored further for a specific trade or service.
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Homeland Property
No reviews yet
Extension Builder in Hertfordshire
Homeland Property is a Specialists in Construction and Building Refurbishment with more than 12 years of experience. We undertake all kind of building work whether you desire to convert your loft or build an extension to the rear of your property we can help with competitive price range.
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Wooburn Project Management Ltd
Rating: 5 out of 5
Extension Builder in Hertfordshire
Our company is family owned and we work on all property types from small extensions to building new homes and refurbishments containing multiple units, we employ most of our people directly and have built a family atmosphere giving us more control on the program and our main subcontractors have worked with us for many years .
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Latest review:
Extensions- 1 Sep 2021
I have nothing but praise for Michael and his team. The project was managed exceptionally well and Michael kept us apprised of progress, emerging issues (which were dealt with quickly and with some innovative thinking) and he was honest and candid with our choice of kitchen tile (I think his words were do you want to rethink that colour!). Michael quoted in Nov and started work in the Spring (late Mar) and held his price despite a national increase in the price of materials and reduced availability which he managed admirably. Obviously a man with a good eye; his suggestions for additional works were inspired and they have resulted in a high quality finish. Finally, it is worth mentioning the team who did the grafting! Very industrious, skilled, polite and helpful. Highly recommend Wooburn PM to anyone considering building work. :-)
Ap Home Improvement Ltd
No reviews yet
Extension Builder in Hertfordshire
Refurbishment,house extension,loft conversion,kitchen,bathroom,flooring, carpet,double glazing,plumbing,heating electric.garden,driveways.garage conversion All type of building work
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Belvedere Electrical Ltd
Rating: 5 out of 5
Extension Builder in Hertfordshire
Belvedere Electrical Ltd is my new business, after working employed for many years. I have now decided to complete works for myself to the highest of standard, with customer satisfaction being my top priority.
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Latest review:
Electrical- 26 Mar 2023
Very efficient and clean work
Verma
No reviews yet
Extension Builder in Hertfordshire
Skimming plaster, K rendering, Sand plaster, tile work , garden work, driveway work, and any type house renovation and building contract
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NDBates Bricklayer/ Plasterer/ General Builder
Rating: 4.7 out of 5
Extension Builder in Hertfordshire
Have 24year of experience in building trade coming from a family run firm with over 80 years of experience working on extensions refurbishments newbuilds and Landsapcing and all General building I have a nvq level 2 in brickwork and enjoy working in the building trade I do my up most to work with the customer to bring there projects to life and with competitive Also, We work with our clients
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Latest review:
Extensions- 3 Nov 2024
Job significantly escalated as more and more issues were discovered to be inherently wrong with the house, added to which the architect was unfortunately taken seriously ill at the start of the project. Nathan managed everything, coordinated trades, resolved issues as they arose and delivered a virtually new house with all floors, roof and walls replaced, eaves replaced, full drainage replaced, Excellent work, extremely friendly, highly recommended

3.7

Top rated Extension Builders

Our Extension Builders in Hertfordshire, are rated 3.7 out of 5 based on 13 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Hertfordshire?

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

Find extension builders in Hertfordshire with MyBuilder

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

Step 2: Compare different extension builders in Hertfordshire

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

Step 3: Hire Hertfordshire extension builders with confidence

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

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

What to ask a Hertfordshire extension builder before hiring?

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

An extension builder in Hertfordshire 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 Hertfordshire 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 Hertfordshire?

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 Hertfordshire 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 Hertfordshire 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 Hertfordshire

Can an extension builder in Hertfordshire help with planning permission?

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

Many Hertfordshire 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 Hertfordshire help with materials and finishes?

Yes, most extension builders in Hertfordshire 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.