Extension Builders in Knebworth

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (15 reviews)

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

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 Knebworth

1590 Results

Sort by:

SM Tech Ltd
No reviews yet
Extension Builder in Knebworth
Home Improvement Experts | At SM Tech LTD, we specialise in transforming homes with expert renovation services that enhance both beauty and functionality. Our skilled team is committed to delivering high-quality, cost-effective solutions tailored to your needs. Whether it’s a kitchen makeover, a full home remodel, or small home improvements, we bring your vision to life with precision and care. Trust us to make your home renovation experience smooth, reliable, and rewarding. Let’s create the space you’ve always dreamed of!
Get in touch
Gurwindersingh4ltd
Rating: 4 out of 5
Extension Builder in Knebworth
Hi my name is gurwinder singh I am skilled in plumbing, skimming , roofing , tilling , bathroom fitting , loft, garage conversions . I do jobs at affordable rates. Thanks
Get in touch
Latest review:
Tiling- 21 Jan 2023
I highly recommend this builder and the team behind it. They have been very professional and efficient in their work, and the results have been outstanding. They have been very accommodating and communicative throughout the entire process, and I have found them to be extremely knowledgeable and helpful. The quality of the work is top-notch and I would not hesitate to recommend them to anyone looking to have a building project completed.
FAIZ Construction LTD
No reviews yet
Extension Builder in Knebworth
FAIZ Construction Ltd is a Gas Safe registered company. We are qualified gas engineers and plumbers with full public liability insurance. Our team of experienced professionals delivers high-quality workmanship, reliable service, and a commitment to getting the job done right first time. Gas services: boiler installation, servicing, repairs, and safety checks. • Plumbing: installations, repairs, bathroom and kitchen plumbing, leak detection. • Emergency call-outs: rapid response for urgent gas or plumbing issues. • Maintenance and upgrades: system improvements, energy-efficient solutions, and compliance work. Gas Safe registered engineers; fully qualified and up to date with regulations. • Public liability insurance for your peace of mind. • Workmanship guarantee — we stand behind the quality of our work and resolve issues promptly. • Professional, hardworking team with years of hands-on experience and dedication. Please feel free to ask any questions or request a free quote. We respond quickly and can provide references and proof of qualifications on request.
Get in touch
We Do Foundations and Extensions Ltd
No reviews yet
Extension Builder in Knebworth
We are actively involved in the provision of top-quality residential and commercial construction services. We expertly coordinate every aspect of our client’s construction project, from design and planning to custom fabrication and on-site management.
Get in touch
ALbuild
New on MyBuilder
Extension Builder in Knebworth
SHUTTERING CARPENTER | FORMWORK | CONCRETE | GENERAL BUILDING With over 20 years of experience in construction, I specialise in shuttering carpentry, formwork and concrete work, with experience across a wide range of building projects. 🔨 Shuttering carpentry & formwork 🏗️ Concrete work 🏠 Roofing 🧱 General building & construction work 🔧 Repairs, alterations and other building jobs I’m experienced, reliable and take pride in delivering quality workmanship and a professional finish. 📍 Based in East London 📍 Available for work across East London and surrounding areas For enquiries or to discuss your project, please send me a message with the details
Get in touch
S.R Building & Landscaping
No reviews yet
Extension Builder in Knebworth
We provide professional construction servos with a focus on precision, durability and quality. Our experienced team delivers expert solutions for projects of all sizes. Our services include: Formwork installation & Reinforced concrete structures: Walls, Columns, Slabs, Foundations, Basement, Decking, Fencing,
Get in touch
Oakley Renovations LTD
No reviews yet
Extension Builder in Knebworth
We pride ourselves on being a luxury refurbishment company, with your experience at the heart of everything we do. We started as a property development company now with a GDV of £6million, it was the struggle to find a construction company which matched our expectations of service which led to this arm of the company being formed. Our vision is built around 4 pillars; - Professionalism - Organisation - Communication - Quality Craftsmanship
Get in touch
Kacper
No reviews yet
Extension Builder in Knebworth
Taking every job seriously. Quality work and always meeting deadlines.
Get in touch
Gur construction ltd
No reviews yet
Extension Builder in Knebworth
Gur construction ltd company is giving less costs as compared to others nd free valuation nd we provide good work
Get in touch
Dave hammett-general builders
New on MyBuilder
Extension Builder in Knebworth
We cover all aspects of general building works.with nearly 40 years of experiance at hand .with a friendly careing attidude for you..we specalise in old works .from refurbs.to.barns .and stone works.allso steel and opening and stuctual work.to ground works footings and underpining..id like to say we can happly cover all your building needs .
Get in touch
Homeland Property
No reviews yet
Extension Builder in Knebworth
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.
Get in touch
Se building carpentry
No reviews yet
Extension Builder in Knebworth
Hello there I’m Stewart I’ve been building extensions/ carpentry and fitting kitchens for over 30 yrs now Ive an eye for detail and I belive in getting every detail right. I’m very customer friendly and belive having a good customer/ builder rapor will make the job run seamless and if a problem arises then it’s easy to rectify the problem
Get in touch
KS builders
No reviews yet
Extension Builder in Knebworth
We can handle simple and complex jobs on time and with good price. We do all kind of jobs like painting and decorating, tiling, garden slabs, bath renovation , roofing , plumbing , electric , wood flooring , fix kitchen , skimming and maintenance etc…
Get in touch
Building outfitters ltd
No reviews yet
Extension Builder in Knebworth
Hi my company is building outfitters Ltd. I m working in all over London and out of London area. I m specialist in loft conversion,extension ,electrical,plumbing,new build house ,bathroom and kitchen installation ,bespoke bedroom. Driveway,fencing. Skimming and rendering,painting and decorating.
Get in touch
Judge construction
No reviews yet
Extension Builder in Knebworth
Contact forbathrooms,extension,tiling, plastering , flooring , paint , door fittings, any type of window fitting
Get in touch
Thind Bricklayers
No reviews yet
Extension Builder in Knebworth
ALL BUILDING WORKS UNDERTAKEN ●Electric ●Plumbing ●Renovation ●New Builds ●Lofts ●Garages ●Extensions ●EVERY TYPE OF BRICKWORK & BLOCKWORK ▪︎Extensions and Garages ▪︎New Builds ▪︎Garden Walls ▪︎Driveway Walls ▪︎Gate Pillars ▪︎Porches ● REPAIRS to existing buildings ●Any type of POINTING ●WEATHER POINTING ■HIGHLY EXPERIENCED TEAM MEMBERS WITH AROUND 30 YEARS OF EXPERIENCE ■GENUINE PRICE
Get in touch

3.9

Top rated Extension Builders

Our Extension Builders in Knebworth, are rated 3.9 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 Knebworth?

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

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

What are the hourly rates of extension builders in Knebworth?

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

Find extension builders in Knebworth with MyBuilder

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

Step 2: Compare different extension builders in Knebworth

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

Step 3: Hire Knebworth extension builders with confidence

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

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

What to ask a Knebworth extension builder before hiring?

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

An extension builder in Knebworth 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 Knebworth 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 Knebworth?

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 Knebworth 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 Knebworth 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 Knebworth

Can an extension builder in Knebworth help with planning permission?

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

Many Knebworth 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 Knebworth help with materials and finishes?

Yes, most extension builders in Knebworth 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.