Extension Builders in Stevenage

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.3 (12 reviews)

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Some of our top rated extension builders in Stevenage

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Macbuild Construction ltd
No reviews yet
Extension Builder in Stevenage
Extensions, Loft conversion, renovation, electrical, Smart home control, automation, plumbing, heating and heating controls, networking, carpentry,
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AB developments
No reviews yet
Extension Builder in Stevenage
My business provides any building needs required from start to finish. We specialise in first and second fix carpentry. This includes extensions, loft conversions, refurbs, kitchens, doors etc. please get in contact for a no obligation quote. Thanks you - alfie
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L HEWITT CONSTRUCTION
No reviews yet
Extension Builder in Stevenage
Welcome to L Hewitt Construction, where we build more than just structures – we build lasting relationships, quality craftsmanship, and sustainable solutions. With a passion for excellence and an unwavering commitment to integrity, we have become a trusted partner in the construction industry, known for delivering exceptional projects on time and within budget. Founded in 2012, L Hewitt construction has grown from a small, family-owned business to a leader in the construction and building sector. Our team is made up of experienced architects, engineers, project managers, and skilled tradespeople who share a common goal: to bring your vision to life with precision and professionalism. We specialize in a wide range of construction services, including: - Custom home extensions - Loft conversions - New builds - Modern renovations We turn your dream home into reality, transforming existing spaces into beautiful, functional areas while preserving the integrity of the original structure. Every project we undertake is approached with a focus on quality, safety, and client satisfaction. We take pride in our attention to detail, working closely with clients to meet expectations at the highest standards. Why Choose Us? Experience & Expertise – With over 22 years in the industry, we bring extensive knowledge and experience to every project. Whether it’s a small renovation or a large project, we offer customized solutions that meet your specific needs. We respect your time and your deadlines, ensuring that projects are completed on schedule. Our rigorous quality control process guarantees that every project meets the highest standards. Contact Us today to discuss how we can bring your vision to life.
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High tech process Ltd
No reviews yet
Extension Builder in Stevenage
I am an qualified electrician with 35 years experience. Commercial and domestic, Three phase and single phase. Able to build complete industrial control panel conventional and PLC control. Domestic complete rewinding and alterations. Latest level 3 BS 7671:2018
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thompsons carpentry and construction
Rating: 4.9 out of 5
Extension Builder in Stevenage
Thompsons Carpentry and Construction, based in Bedfordshire, is a trusted, full-service construction company proudly serving clients within the 40-mile radius. With over 11 years of experience in the construction industry, we bring expert craftsmanship, reliability, and a customer-focused approach to every project we undertake. We specialise in all aspects of construction, including carpentry, roofing, brickwork, structural work, renovations, and conversions. From small home improvements to large-scale structural projects, our team delivers high-quality workmanship built to last. We also offer guarantees on all work, with flexible warranty lengths tailored to each job for added piece of mind. At the heart of the business is a simple mission; to bring every customer's vision to life while working closely with them at every stage, ensuring all work is completed efficiently, professionally, and to the highest standard. We pride ourselves on transparent communication, attention to detail, and a commitment to delivering results that exceed expectations. Whether you're transforming a space, repairing a structure, or building something completely new, Thompsons Carpentry and Construction is here to make it happen with quality and care
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Latest review:
Roofing (Pitched)- 5 Sep 2026
Calvin did a high-quality temporary patch on my cracked lead roof and took the time to meticulously examine the area before providing a quote for the permanent fix. He clearly takes pride in his work, and I wouldn't hesitate to hire him again.
Summit Construction
No reviews yet
Extension Builder in Stevenage
At Summit Construction, we’re more than just builders — we’re partners in bringing your vision to life. With a passion for quality and a commitment to reliability, we offer a full range of construction services, from garden renovations and extensions to new builds, carpentry landscaping, garden pergolas and gazebos. Founded on the principles of honesty, precision, and customer satisfaction, we work closely with every client to ensure each project is completed to the highest standards — on time and on budget. Whether you’re planning your dream home, upgrading your space, or starting something new, we’re here to guide you every step of the way.
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AIF Construction
No reviews yet
Extension Builder in Stevenage
Over 40 Years experience as a General Builder in and around the Bishops Stortford Area. Covering all domestic Works to the highest standard for many years! Extremely high level of knowledge to building regulations and standards. Well established Builder.
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JV Builder's
No reviews yet
Extension Builder in Stevenage
20 years of experience in Construction. Building maintenance, repair and installation. - Plumbing installation and repair. -Electrical installation and repair. -Brick work and bespoke carpentry. -Home extensions and renovations. -Flooring, vinyl and linoleum installations. -Bathroom and kitchen remodeling. We cater for both commercial and domestic customers and all of our work is fully insured and guaranteed for 12 months.
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Lorimer Properties
No reviews yet
Extension Builder in Stevenage
We are a Construction & Property Development business. I have worked in Construction for 8 years. My main trade is Bricklaying which I completed a 3 year Apprenticeship with but I have learnt many trades over the years and have experience of running my own jobs that include Extensions, New Builds, Garage Conversions & Refurbishments. We take on all ranges of work; big jobs & small jobs, including Bricklaying, Patios, Driveways, Plastering, Dry lining, Tiling & Demolition.
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Murray's Electrical Ltd
No reviews yet
Extension Builder in Stevenage
Murray's Electrical Ltd is a family run business based in Bedfordshire, with a first class reputation for Electrical installations. The team has a wealth of experience and knowledge and have accumulated over 50 years experience in the industry. Whatever kind of job you need doing, you can be sure that we're well equipped to deliver it. Our fully qualified electricians pride themselves on doing the job right the first time. Our dedicated team are ready to be of service. Simply contact us and speak to one of our expert electricians. Murray's Electrical Ltd are timely, courteous, honest and fully qualified and approved. If you need a skilled, affordable electrician we are the perfect choice for you.
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JR General Building
No reviews yet
Extension Builder in Stevenage
JR General Building Ltd is a fully-insured, limited company with a heritage spanning three generations. We excel in delivering comprehensive building services, from foundational work to chimney construction. As an SMAS-accredited organisation, we take safety seriously. Every member of our team holds a CSCS registration, guaranteeing not just an exceptional finished project, but also a commitment to conducting work in a safe and secure manner.
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ASC
Rating: 5 out of 5
Extension Builder in Stevenage
Plumbing & heating — full professional range ASC HEATING & PLUMBING is based in London and works across London and the surrounding areas. With 6+ years in business, we offer everything from emergency call-outs and repairs to installations, leak detection, drains, bathrooms, boilers, central heating, underfloor heating and commercial plant rooms — planned so you know scope, timescale and cost up front.
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Latest review:
Plumbing- 1 Apr 2026
Aurel and his son did a great job, really knowledgeable and helped with a difficult job. Not only were the results fantastic but the guys were a pleasure to have around.
NDBates Bricklayer/ Plasterer/ General Builder
Rating: 4.7 out of 5
Extension Builder in Stevenage
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
Patrick the Builder Ltd
Rating: 5 out of 5
Extension Builder in Stevenage
Hi I’m PATRICK from Patrick the builder end I’m very happy to the next job for you General building Brick work Block work Full Refurbishment Loft Conversion Fibreglass roof Garage conversion Dive way Patios Garden conversion & Maintenance
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Latest review:
Extensions- 13 Mar 2022
Patrick and his team were hired to build a garden room. Reasonably priced, offers solutions to problems that might arise during building work, polite and easy to work with. He will also bring his expertise into the project and suggest different ways of doing things or using different products. Happy with the build and will definitely use him again for future projects.
DJR Construction
No reviews yet
Extension Builder in Stevenage
DJR Construction- What we do Building works such as concrete and slab bases, patios, steps, fencing, gate work, brickwork, porches, conservatories, extensions, driveways and gardening. Erecting and dismantling sheds, summer houses, log cabins and playhouses. Site preparation- dismantling and removal of old buildings, asbestos disposal, ground clearance and base works
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LIVAHAUS
Rating: 5 out of 5
Extension Builder in Stevenage
We are a professional team and we are very responsible, punctual and on time with our work .
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Latest review:
Tiling- 16 Feb 2026
Luis did an excellent job on my bathroom. He had to do a lot of prep work before starting the tiling, including rebuilding the floor and repairing the walls. At every stage he explained what needed to be done, ensured that I wanted to go ahead, listed the materials that would be needed, and the cost. It made a huge different to me that Luis was willing to source and purchase all materials; he checked in with me from the suppliers as to choice and cost, and sent receipts for every penny. I cannot recommend him highly enough, for his knowledge and expertise, his honesty and hard work, and also for being such a lovely person, nothing is too much trouble. I am delighted with my new bathroom, and am planning more home improvements with Luis, when he is free again!

4.3

Top rated Extension Builders

Our Extension Builders in Stevenage, are rated 4.3 out of 5 based on 12 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Stevenage?

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

Find extension builders in Stevenage with MyBuilder

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

Step 2: Compare different extension builders in Stevenage

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

Step 3: Hire Stevenage extension builders with confidence

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

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

What to ask a Stevenage extension builder before hiring?

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

An extension builder in Stevenage 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 Stevenage 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 Stevenage?

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 Stevenage 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 Stevenage 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 Stevenage

Can an extension builder in Stevenage help with planning permission?

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

Many Stevenage 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 Stevenage help with materials and finishes?

Yes, most extension builders in Stevenage 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.