Extension Builders in Derby

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.9 (15 reviews)

Easily find verified Derby Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in Derby.

Select a service

How it works

Post your job for free

Tell us about your job, and we’ll alert suitable tradespeople in your area. It’s simple and free.

Tradespeople respond

Once your job is posted, you’ll get responses from interested tradespeople through the website.

Review profiles and choose

Browse profiles, work history, and feedback, then choose who you wish to share your details with.

Some of our top rated extension builders in Derby

454 Results

Sort by:

Midlands Window Systems
Rating: 4.9 out of 5
Extension Builder in Derby
Midlands window systems is a family run business with over 20yrs in the double glazing industry. We take pride in our work and aim to achieve the highest standards to enable repeat work and existing customers. We offer all kinds of upvc work from new installations to complete extentions to repairs and insurance work. Our aim is to offer you the best products at affordable prices.
Get in touch
Latest review:
Extensions- 18 Jul 2023
Very very happy to recommend - I fact, I already have to friends and family! Bob and Andy built a single storey utility room extension for me. To begin, the quotation process was easy, tho I already had got plans and approvals etc in place. The quote was competitive, and after the build was finished the final amount was exactly as quoted. They also put up with me making small alterations, without complaint! Reliable, competitive, polite and tidy, I would absolutely have no hesitation in asking them to do other building work should the situation arise. They were polite and friendly, happy to accommodate my working pattern, and I had no qualms about leaving them alone in my home. Am a very satisfied customer. If needed, I would be ok to show the work I've had done to prospective customers.
Bespoke construction
Rating: 4.5 out of 5
Extension Builder in Derby
At Bespoke contruction we have over 30 years experience in the building trade. We can carry out all your building needs. From a garden wall to a 2 storey extension. Barn conversions. Kitchens and bathrooms. We can also deal with all architectural drawings and planning. We also specialise in upvc conservatory’s - windows and doors. We are proud members of the federation of master builders. Kind Regards Bespoke Team
Get in touch
Latest review:
Bathroom Fitting- 4 Nov 2025
the job went very well,and i am very happy with the work done.i would happily recommend bespoke construction.
emac contractors ltd
No reviews yet
Extension Builder in Derby
joinery contractor 40 years experience large contracts all building projects considered 1st rate tradesmen
Get in touch
Dumitru Construction
Rating: 4.7 out of 5
Extension Builder in Derby
Extentions
Get in touch
Latest review:
Extensions- 8 Jun 2024
Dumitru and Janni completed our utility area and shower room ahead of schedule, showing real commitment to our project throughout. Their workmanship and attention to detail was excellent. Dumitru provided useful advice on materials and finishing touches. Our recommendation is well earned.
Hails Building Services LTD
Rating: 5 out of 5
Extension Builder in Derby
Hails Building Services LTD is a general building and brickwork contractor. After 25 years in the building sector we decided to start a company building on the areas often left lacking by other builders. Our ethos is a foundation of customer support, honesty and integrity. We offer a full range of building services and are happy to provide qualified and insured tradesmen for all your building needs, from small domestic improvements to new builds and everything in between.
Get in touch
Latest review:
Extensions- 13 Jun 2021
I can't speak highly enough of Lee and his team. The quality of their work was outstanding - from the external stone masonry to the internal build and finishes. Lee is extremely organised, friendly and proactive. There were many occasions during the project where he fed back his own thoughts for improving the build (at no extra cost) and we've ended up with a better extension as a result. Lee was a pleasure to work with and thoroughly professional, and I would certainly recommend him.
Palar Ltd
No reviews yet
Extension Builder in Derby
Palar is your go-to, all-inclusive construction and renovation firm, specializing in both residential and commercial property expansions, alterations, and updates. Boasting a crew of exceptionally talented craftsmen, we’ve got you covered on every front when it comes to construction and makeover projects. Through the years, we’ve aided our clients in elevating the worth and aesthetic appeal of their residential and business spaces, turning them into places they truly adore.
Get in touch
Tamworth gardeners&landscapes
No reviews yet
Extension Builder in Derby
Treat all the garden as my own garden,do the work with that in mind.
Get in touch
Ajs builders Ltd
No reviews yet
Extension Builder in Derby
Over the last decade our team has used our expertise to deliver 15+ new build projects with a gross GDV of over £10m Along side multiple extensions and re roofs We are not your average builders who bump there prices up during a job due to “un foreseen” costs. We take pride in every aspect of our work and can’t wait to take the stress out of your experience!
Get in touch
Santokh Singh
New on MyBuilder
Extension Builder in Derby
Santokh Singh general building work self employee.Refurbishments, Extensions, Repairing,Painting and Decorating,Floor Fitting Plastring, Tilling.
Get in touch
Fitzgerald’s building services
No reviews yet
Extension Builder in Derby
We are a family run business, with more than 30 years experience in the building industry
Get in touch
AMG BUILDING
No reviews yet
Extension Builder in Derby
Hello I’m Alex I’ve been in the building trade for over 15 years specialising in extensions. My main trades are bricklaying, plastering, 1st and 2nd fix joinery work, roofing and landscaping. I am an easy person to have around and get along with I am based in Nottingham no job to big or small. Thanks.
Get in touch
Marius
Rating: 4.9 out of 5
Extension Builder in Derby
1. We build houses - from a plot of land - we do everything - up to a roof .. all the way to a finished landscape with walls/ fences and automatic gates if required 🏡 2. We build extensions - We build brand-new Extensions whether that be a single storey, double storey , a wraparound extension or a super huge luxury addition to your existing property 3. House Renovations - We can completely renovate an entire property to create a brand-new living space 4. Full landscaping projects .. small gardens to huge outdoor redesigns Residential and commercial 5. Commercial Fit Out. Office Fit Out, hospitality Fit Out and industrial Fit Out Recreate outstanding and amazing places for staff and employees to enjoy their time at work and for your clients to feel the wow Factor when they visit your business 6. We purchase properties Predominantly residential properties and we transform them into BTLs and Hmos or we flipthem 7. We work with investors. We work with private investors who wish to put their money with us to enable us to purchase and Renovate properties This is a deal that is either short term or long-term for a typical 10% return Most importantly - 8. We love what we do!! We have renovated and built so many properties we have lost count... If you have a potential project, you would like to speak to us about please let me know We help every step of the way Full communication throughout Experienced and knowledgeable teams assigned to each project We work across the north west and Cheshire We work on time and to budget I look forward
Get in touch
Latest review:
Conversions - General- 13 Jan 2026
Due to too many things changed after we thought that they had been accepted. We have gotten nervous of what else is going to change.
CUMMINS & CO PROPERTY CONSULTANTS LTD
No reviews yet
Extension Builder in Derby
As an independent building contractor we understand the importance of providing an honest and reliable builder service to all customers. Since forming Cummins and co we have worked hard to build a strong reputation for quality throughout the Nottingham & the surrounding areas.
Get in touch
MCS Electrics
Rating: 4.9 out of 5
Extension Builder in Derby
I started the company six years ago. I am a qualified electrician. As I have alway's worked for a company I thought it was time to see if i could do it on my own. As working in the construction environment you notice shoddy workmanship. So I decided to hand pick the best trade people on the way and add them to my own company.
Get in touch
Latest review:
Electrical- 26 Jun 2017
Mark was brilliant. Identified the problem very quickly and was able to sort it promptly and professionally. Friendly, good time keeping, excellent value for money. Will definitely use again!
Jcd building solutions
Rating: 5 out of 5
Extension Builder in Derby
Jcd building and landscaping solutions
Get in touch
Latest review:
Repointing- 18 Sep 2021
The job was completed to our satisfaction and we will certainly consider making contact again when we require further work.
Costellos driveways & Landscapes ltd
No reviews yet
Extension Builder in Derby
Hello Costello’s Driveways & Landscapes. We have over 30 years experience. We are driveways & Landscaping specialists. We take full pride in our work and our main goal is always to make sure the customer is always happy. We look forward to meeting use and transforming your homes.
Get in touch

4.9

Top rated Extension Builders

Our Extension Builders in Derby, are rated 4.9 out of 5 based on 15 reviews from customers like you.

Quality screening

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 Derby?

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

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

What are the hourly rates of extension builders in Derby?

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

Find extension builders in Derby with MyBuilder

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

Step 2: Compare different extension builders in Derby

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

Step 3: Hire Derby extension builders with confidence

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

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

What to ask a Derby extension builder before hiring?

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

An extension builder in Derby 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 Derby 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 Derby?

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 Derby 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 Derby 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 Derby

Can an extension builder in Derby help with planning permission?

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

Many Derby 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 Derby help with materials and finishes?

Yes, most extension builders in Derby 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.