Extension Builders in Grantham

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (5 reviews)

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Some of our top rated extension builders in Grantham

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Todds Group
Rating: 5 out of 5
Extension Builder in Grantham
We are a commercial interiors company who have teamed up with a reputable builder to extend our portfolio to both Commercial and domestic extensions and refurbishment. We can provide 3D visuals, detailed drawings of all works to be carried out, detailed and specific quotes as well as a labour schedule from start to finish. Our employed dedicated team strive for perfection and have years of experience working to deadlines.
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Latest review:
Ground floor extension, which turned our kitchen into an open plan kitchen/dining room, along with adding a hallway and downstairs toilet to the house. Very impressed with the quality of the workmanship and professionalism throughout the build. They always kept things as tidy as possible and completed the job in a timely manner. They turned what had been a dream for a long time into a reality, and we couldn't be happier with the final results. There were aspects of the extension design that we weren't sure about, and the team came up with ideas and advice, which really helped with making the project the best it could be! Would definitely recommend!
Daniel bird design ltd
Rating: 5 out of 5
Extension Builder in Grantham
As a proud property owner, you will best enjoy a space with an interior design that reflects your personality and tastes. Therefore, it is important to consult reliable tradesmen that listen to your ideas intently. At Daniel Bird Design, are a team of talented builders supported by more than 30 years of experience. Rest assured, you will receive a dependable service from our tradesmen. Whether you require plastering and renovation, a brand new extension or conversion, or a modern bathroom and kitchen, we are your first port of call for quality building services.
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Latest review:
Extensions- 5 May 2026
Really happy with the outcome of the double storey extension and the work Daniel completed. Of course like any major project, issues and niggles cropped up, but very happy with the way things were always resolved. Timeline was stretched but is very often the case with building work. I thought Dan communicated really well with me without me chasing him and would always reply almost immediately when I reached out to him. My only criticism if there was one would be that the tradesmen he used didn't always keep site particularly tidy, however this was rectified when asked. I would certainly use Dan again and have happily recommended him to friends, and his costings were very reasonable and were kept to exactly. I would be happy show anyone around to see his work.
Bahria Consulting Ltd
Rating: 5 out of 5
Extension Builder in Grantham
Nothing
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Latest review:
Tiling- 1 Mar 2025
I recently had Bahria Consulting Ltd handle a tiling project at my property, and I’m overall very pleased with the results. The team was professional, arrived on time, and completed the work efficiently. The quality of the tiling is excellent, with clean lines and durable finishes that have held up well.
Freemans building services limited
No reviews yet
Extension Builder in Grantham
FIRST CLASS BUILDING SERVICES IN RUTLAND With over 21 years of experience, we are specialists in all types of brickwork and stonework, new builds, extensions, patios and driveways. We take great pride in all work which we undertake, taking great care to make sure that our client’s needs are met in a meticulous and professional manner. All of our staff are fully qualified to complete the task at hand, and we operate to all modern governed standards. We have an exemplary track record when it comes to meeting our clients’ needs, and we are confident that we can exceed your expectations when it comes to your next building project. So if you're looking for a building company in Rutland with many years experience in the building trade then look no further than Freemans Building Services. Whether it’s a query or a quote, pick up the phone and call
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THE CENTRE FOR CREATIVE ENTERPRISE LIMITED
Rating: 5 out of 5
Extension Builder in Grantham
Choose Cobalt Carbon Free for trusted, expert design and building solutions with a personal touch. As a long-standing family business, we pride ourselves on offering independent advice, proven products, and the latest insulation technology - all at fair prices. Our Specialist Services include, - Advice, free no obligation advice! - Damp, resolving all types of damp around the home! - Insulation, improving home insulation to walls, floors & roofs! - Renovation, repairing & upgrading including home conversions and extensions! With our long-term guarantees and lifetime support, you can count on us for quality and peace of mind. We’re here to future-proof your home, providing a service that values performance, reliability, and care - because your comfort and confidence matter to us.
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Latest review:
Insulation- 18 Jan 2025
Good response and excellent knowledge. Made some recommendatiosn which we are planning to do. They can do it all ...from double glazing to PIV to internal insulation. highly recommended
Purdy interiors solutions
No reviews yet
Extension Builder in Grantham
Hi my names Ian and I’ve been working with Ryan now for over 7 years together. We both have over 20 years experience in the building trade. Together we have built up a fantastic reputation from our work locally. Primarily our work was fitting kitchens and bathrooms and the last couple of years we’ve moved into renovations and extensions taking on bigger projects from start to finish. You can find us on facebook to see some of the projects we have worked on over the years.
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tony
No reviews yet
Extension Builder in Grantham
Bricklaying, plastering new builds, doors & windows
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Paint the town
No reviews yet
Extension Builder in Grantham
Painting and decorating.
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Stamford masonry services ltd
No reviews yet
Extension Builder in Grantham
We are a well established company with a combined 30 years experience, with an eye for detail and fully compliant with building regs. which carries out a multitude of projects from garden walls, house extensions, new builds, hard landscaping, patios and we are qualified to install grp roofing . Projects also under taken are complete builds, basic shells, commercial and residential contracting .
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Jacks driveways and landscapes
No reviews yet
Extension Builder in Grantham
Jacks driveways and landscapes - Resin bonding driveways - Tarmac driveways - Block paving driveways - Stone driveways - garden and patios - driveway clean / power wash clean - grass re-turfing - brick work / garden walls - flower beds - fencing / gates All driveways and garden work undertaken in the Nottinghamshire and Lincolnshire area Thank you for looking at my page and I hope to see you soon 👍
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NDA Civils and Building Limited
No reviews yet
Extension Builder in Grantham
We are experts in the groundwork’s / building trade, based in Lincolnshire with over 25 years of experience. We are friendly, efficient and deliver projects on time and within budget. We work with our clients to ensure their requirements are met and alongside Building Control to ensure standards are met.
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Luke Carter
No reviews yet
Extension Builder in Grantham
I do all sorts of ground works and landscape
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Mortar construction ltd
No reviews yet
Extension Builder in Grantham
Mortar Construction We are a family run, independent company based in Stamford, Lincolnshire. With over 10 years experience within the construction industry and a multi-skilled team, we are available for all your building needs. From footings and foundations to roofs and renovations, we at Mortar Construction are dedicated to providing the best service and high quality construction work every time.
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Whitbread - Restoration
Rating: 5 out of 5
Extension Builder in Grantham
We are self employed stonemasons with over forty years experience between us based in the East Midlands area We are happy to undertake stonework projects of any size or duration - which varies from repairs and repointing on residential dwellings to major restoration projects and carvings
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Latest review:
Stonemasonry- 20 Aug 2015
The project was finished today and i'm very happy with the result. Would definately recommend to others
Wheeldon Developments
Rating: 5 out of 5
Extension Builder in Grantham
Welcome to Wheeldon Developments. We are Brickwork and Building Contractors based in Lincoln. We cover the Lincoln, Lincolnshire and surrounding areas. Please leave us a message for a free no obligation quote.
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Latest review:
Bricklaying- 3 Oct 2022
Callum did an excellent job .He was very professional. He let me know when he was coming , turned up on time ,was polie and friendly and cleared up afterwards. What more could you ask for . I would definitely recommend him .
Martin Wade Construction Ltd
No reviews yet
Extension Builder in Grantham
Fifty years experience as a general builder at all types of work both large and small
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4.2

Top rated Extension Builders

Our Extension Builders in Grantham, are rated 4.2 out of 5 based on 5 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 Grantham?

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

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

What are the hourly rates of extension builders in Grantham?

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

Find extension builders in Grantham with MyBuilder

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

Step 2: Compare different extension builders in Grantham

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

Step 3: Hire Grantham extension builders with confidence

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

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

What to ask a Grantham extension builder before hiring?

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

An extension builder in Grantham 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 Grantham 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 Grantham?

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 Grantham 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 Grantham 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 Grantham

Can an extension builder in Grantham help with planning permission?

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

Many Grantham 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 Grantham help with materials and finishes?

Yes, most extension builders in Grantham 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.