Extension Builders in Olney

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4 (6 reviews)

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Some of our top rated extension builders in Olney

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Glorum Limited
Rating: 5 out of 5
Extension Builder in Olney
GLORUM Limited is a London-based construction company with 10+ years of building experience in domestic and commercial projects. GLORUM Ltd is your one-stop construction company made up of highly qualified and skilled tradespeople, designers and engineers that can deliver your building project from start to finish. Our area of expertise and knowledge covers construction of new extensions and basements, loft conversions, full house renovations and new builds.
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Latest review:
Extensions- 16 Nov 2018
Glorum has been extremely professional and hard working. They fulfilled the deadlines given. They have good team of all trades. Their admin is strong as well. They give attention to detail and come up with new ideas and technology. Great work Glorum team !!
Kao
Rating: 5 out of 5
Extension Builder in Olney
Working clean and good experience with clients.
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Latest review:
Handyman- 30 Dec 2023
A true professional who will go all out to ensure satisfaction in the works done as well as provide guidance where good products can be sourced at bargain prices. Thanks Andrei for the professional work done
CB Builders & Son
Rating: 4.2 out of 5
Extension Builder in Olney
CB Builders & Son is a trusted, family-run building company specialising in high-quality renovations, refurbishments, garage conversions, structural alterations, insurance reinstatement works, and premium property improvements throughout Milton Keynes, Bedfordshire, Buckinghamshire, and the surrounding areas. With over a decade of experience, we work with homeowners who are looking to transform and add value to their properties through quality craftsmanship, thoughtful design, and meticulous attention to detail. Whether you’re carrying out a complete house refurbishment, converting a garage into additional living space, remodelling your kitchen or bathroom, or restoring a property following insurance damage, we provide a professional, fully managed service from start to finish. Our expertise includes full property renovations, garage conversions, structural alterations, kitchen and bathroom installations, bespoke carpentry, plastering, high-end painting and decorating, spray finishes, flooring, and all aspects of internal remodelling. We also undertake insurance reinstatement works, carrying out detailed inspections, comprehensive repair schedules, and restoring properties to the highest standard following fire, flood, storm, escape of water, and impact damage. Externally, we continue to offer complete landscaping solutions, including premium patios, driveways, garden transformations, fencing, brickwork, and outdoor living spaces designed to complement and enhance your home. Every project is completed with the same commitment to quality, communication, and attention to detail. We deliberately limit the number of projects we undertake at any one time, allowing us to provide a highly personal service and ensuring every client receives the time, care, and workmanship their project deserves. Much of our work comes through repeat customers, personal recommendations, and our consistently excellent five-star reviews, something we are incredibly proud of. We believe quality workmanship is an investment. Our quotations reflect the standard of finish, materials, and level of service we provide. We are not a volume contractor or a budget builder, we work with homeowners who value quality craftsmanship and want their project completed properly the first time.
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Latest review:
Attention to detail was exceptional, checked with me throughout whole project that I was satisfied would not use anybody else. Already have them booked in to do more works
7 STAR HOMES LTD
Rating: 5 out of 5
Extension Builder in Olney
Hi.. we are bedford based builders. We are new on mybuilder.com. We have been running our business nearly 15 years from recommendations. We have remained our values since 2009, making us a fantastic company to work for and to do business with. Whether your project is an extension, new build, refurbishment, kitchen or bathroom, we are committed to delivering our costumer’s an excellent, detailed and top quality finish service. Also We r happy for you to visit and speak to our previous clients
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Latest review:
Kuldeep and his team where absolutley brilliant! They were professional and reliable. Very considerate, both in terms of noise and outages and working around our family schedule. Excellent insight in designing the build and modifcations required during the build. Overall, really pleased with the work and the way it was managed.
RVW construction ltd
Rating: 5 out of 5
Extension Builder in Olney
New to Mybuilder after moving from London to Northampton I got years of experience in Maintenance refurbishment and build works Site menager on large projects Carpenter from trade Reliable and high standard finishes Public liability insurance
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Latest review:
Handyman- 2 Nov 2023
I have been very happy with Robert’s work. He communicated with me really well and carried out the work to a good standard and in a timely fashion. I would highly recommend him.
Aedifex Build
Rating: 4.7 out of 5
Extension Builder in Olney
We are a professional and reliable service able to carry out all your building needs. Free customer advice from qualified tradesmen all work undertaken by professionals. We offer free quotations with all our services. We provide full written quotations with accurate time and payment plan to suit you
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Latest review:
Extensions- 5 Aug 2016
A+++ These guys are the consummate building professionals. Their customer service is on point. They deliver the project with admirable precision. A well laid out project plan from the outset incorporating clear milestones and a payment schedule. I must confess that I was initially uneasy to entrust such a big building project onto the shoulders of such very young looking builders, sometimes age gives one that blind sense of experience security, but these guys have changed all that. I had an extension built over my adjoining garage to create a new study, 2 bedrooms with 1 ensuite. They are effortlessly creative and their workmanship is premium. Truly majestic! Bravo Majestic Creations!
AK Home Renovations Ltd
Rating: 4.9 out of 5
Extension Builder in Olney
We specialise in all aspects of domestic building works. Garage conversions is one of major specialties. Our wide range of services include; Home Refurbishment, Electrical Installations, Bathroom & Kitchen Fitting, Extensions, Conversions, Bricklaying, Plaster, Rendering, Tiling, and, Painting & Decorating. We can also undertake Gas & Heating. Installation and Maintenance, including wood-burning installations. While we keep our prices competitive, our quality of work will always remain high, guaranteed, & compliant with industry standards.
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Latest review:
Extensions- 5 Oct 2022
These guys came and did an awesome job. They finished a job that another builder left me in a real mess with. So many other builders weren't interested at all. I was told nobody would finish another's job. A bodge job at that. But Reno renovations did just that. And, did an awesome job! Look forward to them doing the rest of my projects.
Arcc services ltd
Rating: 5 out of 5
Extension Builder in Olney
ARCC Electrical Services is a friendly and reliable electrical company who consider no job as too big or too small. Based in Milton Keynes, our team of qualified, professional electricians have over 5 years of experience in the industry. We consistently offer value and quality to commercial and domestic customers and pride ourselves on the positive feedback that we get from our many satisfied customers.
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Latest review:
Bathroom Fitting- 17 Aug 2026
Justin recently renovated my bathroom, and I’m very happy with the results. He did a great job understanding our requirements and provided practical solutions based on our needs. He was flexible, creative, and paid attention to the details. The bathroom looks fantastic, and the entire renovation was completed within just a week. Highly recommended!
D.Catt Builders
Rating: 5 out of 5
Extension Builder in Olney
We are a small friendly and reliable building company, mostly undertaking renovations and restoration work on older and listed buildings but also cover smaller projects, extensions, conservatories, hard and soft landscaping works which include roads, drives, footpaths and bridges,patios,supply and instalation of klargester/ bio underground tanks/ sewridge systems
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Latest review:
Conversions - General- 20 Dec 2016
Really great work carried out by David. Helped on a multitude of jobs not just what he was contracted to do.
Bricklayers
Rating: 5 out of 5
Extension Builder in Olney
My team has been working in construction industry for 15 years. We have a good experience in this field. we work to the highest NHBC standards, we have the certificate in the field
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Latest review:
Bricklaying- 27 Apr 2025
Excellent job, thank you.
McHale Building Services
Rating: 5 out of 5
Extension Builder in Olney
We carryout all aspects of groundworks and operated plant.
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Latest review:
Very pleased with Brendan's work. He kept me informed at all stages, arrived when he said he would or contacted me in plenty of time if he encountered a delay. Would definitly recommend him for groundworks.
PH Design & Build Ltd
Rating: 5 out of 5
Extension Builder in Olney
With over 15 years construction experience working on traditional and timber frame construction development's, we have recently set up a new construction company PH Design&Build Ltd in 2021 to establish and grow a quality assured, right first time application to general domestic renovations or home improvements, extensions and new build projects.
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Latest review:
Bathroom Fitting- 13 Mar 2022
Paul came to quote on an ensuite which he said was not possible after a number of assessments. I made Paul aware of works I planned for the garden and bathroom and a few other bits. If you went someone that is; consistent, timely, has defined cost (regular has updates on costs and possible variances), honest, good quality finish, then Paul is your guy. Our bathroom is to a very high standard with a very detailed finish across all areas With regards to the garden. It was like a swap, no drainage and just clay. Paul came up with a detailed plan as to how he would resolve it, which he did. Communication 10 Time 10 Quality 10 Pricing 10 Consistency 10 Personality 10 It's a shame my builder doesn't allow pictures to be uploaded....
Woodfields Carpentry
Rating: 5 out of 5
Extension Builder in Olney
I have 10+ years within the building industry and continue to pride myself on my strong work ethic and meticulous attention to detail. I let the passion for my craft show through my work by completing things to the highest possible standard. Smaller projects such as singe/double story extensions and garage conversions have been my chosen field of interest. This has been perfectly complimented by my foundation of carpentry and kitchen fitting in which I began my career.
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Latest review:
Joinery & Cabinet Making- 22 Feb 2020
New oak worktops and ceramic sink fitted to a very high standard, Ryan arrived on time completed job and cleaned up after himself all for a fair price, would definitely recommend and use again when needed.
P Harvey Heating
Rating: 4.4 out of 5
Extension Builder in Olney
P Harvey Heating Ltd have been trading since 2009…. Commercial & domestic gas engineers covering large parts of the uk! Gas safe number 503537. We carry out installation work servicing & repair. We offer commercial clients a retainer based service plan. Plumbing heating bathroom installations kitchens installed
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Latest review:
Gas Work- 31 Dec 2025
Did not attend despite twice arranging to, once with myself and once directly with the tenant. I have had to use a previous gas engineer.
Hazelco
Rating: 5 out of 5
Extension Builder in Olney
Family run Business for 18 years, all works under taken from 3 metres in the ground to 3 floors up. Treating your homes as our own.
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Latest review:
Carpentry- 24 Aug 2025
Shane did a great job fixing the wood that supports our porch. Communication was clear all the way through the process. We have already asked him to do another wood work job for us.
Jenstone Industrial Ltd.
Rating: 5 out of 5
Extension Builder in Olney
We're new to MyBuilder and don't have any feedback on here yet! Established in 2012, we're a family run building & refurbishment company based in Bedford. We'd love to discuss your project & can help with general building work, extensions, full or partial refurbishments and kitchen & bathroom installations. We pride ourselves on our high standard of work, work ethic & communication with our customers - we'll always keep you up to date with progress & be here to answer any questions.
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Latest review:
Ben at Jenstone did a full refurbishment including all new plumbing works, including an external oil fired boiler, and a rewire through out. He completed the work to the specification exactly and the overall finish was excellent. He also went above and beyond to get the best prices on materials costs and arranged all of the materials delivery’s making the process for myself a pleasant experience with the refurbishment rather than a head ache. If you are after someone to not only complete the work, but project manage, Jenstone are the outfit to use. Very professional indeed.

Top rated Extension Builders

Our Extension Builders in Olney, are rated 4 out of 5 based on 6 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Olney?

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

Find extension builders in Olney with MyBuilder

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

Step 2: Compare different extension builders in Olney

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

Step 3: Hire Olney extension builders with confidence

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

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

What to ask a Olney extension builder before hiring?

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

An extension builder in Olney 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 Olney 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 Olney?

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 Olney 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 Olney 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 Olney

Can an extension builder in Olney help with planning permission?

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

Many Olney 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 Olney help with materials and finishes?

Yes, most extension builders in Olney 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.