Extension builders in Denmark Hill

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.5 (22 reviews)

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

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 Denmark Hill

3591 Results

Sort by:

I.V.M BUILDERS
Rating: 5 out of 5
Extension Builder in Denmark Hill
I.V.M Builders Limited. Established in Stratford, we have worked in the building trade for many years, I.V.M Builders Ltd are a reliable, fully accredited and professional company operating in East London and North London. We are prideful in all the work which we undertake, taking great care to make sure that our client’s needs are met meticulously and professionally. All of our builders are qualified to undertake the task at hand, and we operate to all governed standards.
Get in touch
Latest review:
Kitchen Fitting- 18 Nov 2023
The kitchen refurbishment exceeded my expectations! The attention to detail, modern design, Thank you for your expertise and professionalism throughout the process. I couldn't be happier with the results!
O&C General Construction ltd
Rating: 4.2 out of 5
Extension Builder in Denmark Hill
O&C General Construction is a construction company that specializes in renovations and general construction. The company has a wide range of experience, from renovations to new construction, and is able to provide a high level of service and quality workmanship. What inspired us to start our own business is adding value to people’s lives, by creating the perfect home for each client, by listening to their needs and create a project that’s perfect for them.
Get in touch
Latest review:
Restoration & Refurbishment- 19 Apr 2026
Didn’t return to finish the job, respond to calls or messages in response to finishing the job. Sadly wouldn’t hire Ovi & Mihai (O&C) again. Friendly & responsive initially. Worked well, on time, eager to please, did a good job - not perfect but adequate, average attention to detail but corrected when asked. We initially had a faux chimney put in, they touted for more work & provided alcove shelving/cabinet ideas which we subsequently hired them for. They worked intermittently (dad around for first half of job then left for Romania) as this was agreed as best for both parties. However they left the job incomplete once paid (were paid on time, each time, with no bargaining). Didn’t respond to texts or calls, leaving cabinet doors unfinished, large chips & cracks unfilled. Laminate was also poorly cut around hearth stone, left chimney cutout unfinished with no cement to the base. Lack of respect and wouldn’t hire again as cannot trust they won’t disappear. Note previous reviews.
A Construction and Renovation
Rating: 5 out of 5
Extension Builder in Denmark Hill
Burtai Refurbishment Ltd is a trusted South London building and renovation company with over 20 years of hands-on experience. We specialise in loft conversions, house extensions, full home refurbishments, kitchens, bathrooms, carpentry, plumbing, and electrical work. Our team delivers high-quality workmanship, clear communication, and reliable service from start to finish. Whether it’s a small repair or a full property renovation, we provide honest pricing, detailed quotes, and a professional approach to every project. We are fully insured, offer a 10-year workmanship guarantee, and take pride in transforming homes into beautiful, functional spaces. If you’re looking for a skilled and reliable builder — we’re here to help.
Get in touch
Latest review:
Kitchen Fitting- 16 Sep 2024
Completed the job on time and to a very high standard. Was always on time. Will hire them again and definitely recommend them.
Lords Builders and Developers ltd
Rating: 5 out of 5
Extension Builder in Denmark Hill
We are experienced team who can put together a plan designed explicitly to suit your needs and working environment. We are offering the following 😀: Unique styles, Exceptional services, Innovative design and Personal attention.
Get in touch
Latest review:
Had full internal refubrishment and extention. They did excellent job with no issues at all. Kept all their deadlines. Have recomended them to family and friends.
Don Buildings Ltd
Rating: 4.9 out of 5
Extension Builder in Denmark Hill
Don Buildings Ltd Client satisfaction is our primary concern and goal. If you are looking for top quality efficient and professional service, so look no further Don Buildings Ltd is here for you For and on behalf of Don Buildings Ltd, Donatas
Get in touch
Latest review:
Extensions- 27 Apr 2024
Super professional job, clean and efficient.
Raj
Rating: 4.4 out of 5
Extension Builder in Denmark Hill
For all your building needs: Extension • Loft • Bathroom Renovation Tiles Work - Plumbing • Electrical - Roofing Painting • Garden Work and repair work. House renovations and kitchen renovations.
Get in touch
Latest review:
Restoration & Refurbishment- 12 Jun 2026
Hired to finish off a complete flat renovation - work mainly consisted of painting, some remedial repair work, light carpentry and a snagging list. Whilst Raj and his guy were great at light repairs, handyman and carpentry work (which is the only reason I’m even rating them with stars), their attention to detail and completion of the snagging list was very poor! Despite having discussions with me to rectify things after I showed him examples, the flat is now left with uneven paint edges, drip marks, uneven grouting, unpainted architraves and sloppy silicone work. Whilst they are good at some things, decorating is definitely not one of them, so it’s a shame and disappointing.
JED BUILDERS LTD
Rating: 5 out of 5
Extension Builder in Denmark Hill
A limited company established in 2016. More that 8 years experience in construction business. We undertake all building works, big or small, managing and looking after project so the client can have the best results possible.
Get in touch
Latest review:
Kitchen Fitting- 14 Dec 2018
Very lovely and professional and clean. Very prompt/punctual and worked efficiently , will be using them again to do more work in my property. Definitely with recommend them to anyone ! 10/10 from me ! Good service delivery
Inside Out
Rating: 4.9 out of 5
Extension Builder in Denmark Hill
Inside Out was formed in 2009. We are an established, London based building company operating throughout London and within the M25. We deliver an honest and straight forward service, with quality workmanship at the forefront of everything we do.
Get in touch
Latest review:
Extensions- 10 Oct 2022
A good team, good building technicians, completed the job according to plan and delivered on time.
First Choice Builders
Rating: 4.8 out of 5
Extension Builder in Denmark Hill
Christopher Graham -Level 1,2,3 in Bricklaying Trowel Occupations. -NVQ Level 1,2,3 -Professional Development Diploma in Historic Building Conservation and Repair -Stone and Brick Repair for Historic Building Restoration -Building and Pointing with Lime Mortar In 2010 I started up First Choice Builders and haven't looked back since. Taking on all Bricklaying works, Fully Qualified with 15+ years experience. Have done extensive courses on Repointing and Brick Restoration. Mastering Tuck, Weatherstruck, Flush and all other types of pointing. Top quality brickwork guaranteed. Also have tower scaffold £150 per week hire. Which should save on getting a proper scaffolding which is a minimum of around £400. Please give me a call for a free quote.
Get in touch
Latest review:
Repointing- 14 Sep 2026
Booked the job then disappeared
D&M Property Services
Rating: 5 out of 5
Extension Builder in Denmark Hill
13 years experience in south east and south west London.
Get in touch
Latest review:
Carpentry- 2 Apr 2017
Completed a larger job of installing French doors for me. Did a great job and very fast. Very hard working and a great finished product. I would without question use again and happy to recommend
Style Building Ltd
Rating: 5 out of 5
Extension Builder in Denmark Hill
Style Building Limited is a leading building contractor within the residential and commercial sectors, our aim is to provide our clients with an experienced management team that can undertake the full range of construction projects, from the sensitive refurbishment such as your project to high specification new build projects.
Get in touch
Latest review:
Restoration & Refurbishment- 4 Jun 2013
Kiril and his team did an excellent job. Kiril puts you at ease and he knows how to communicate well answering any queries fast. His quote was very competitive. He went out of his way to assist me with sourcing items such as coving, cupboards, ceiling roses and skirtings. Highly recommended.
SIM Building Services Ltd
Rating: 5 out of 5
Extension Builder in Denmark Hill
SIM Building Services Ltd is a construction company providing services in Croydon/London and surrounding areas. Our team has over 20 years of combined experience in residential, commercial and interior/exterior construction across all trades. We’re dedicated to a high level of customer service and will take the time to make sure that you are comfortable with the services we are providing.
Get in touch
Latest review:
Extensions- 18 Sep 2022
Dritan is genuine and a man who keeps to his word. Very happy with him and his team. 100% recommend to others.
Edi
Rating: 5 out of 5
Extension Builder in Denmark Hill
Hello my name is Edi.I am a general builder with 10 years experience.Renovation,Extension,Roofing, Kitchen,bathrooms,Wood Flooring,Gardening,Driveway etc
Get in touch
Latest review:
Helpful; will hire again
Full Circle Renovation Ltd.
Rating: 4.9 out of 5
Extension Builder in Denmark Hill
Full Circle Renovation specialises in complete home renovations across London, personally led by our founder from the initial consultation through to completion. Rather than simply providing building work, we take responsibility for coordinating every stage of the renovation, bringing together a trusted team of specialist trades and providing homeowners with a single point of contact throughout the project. Our approach combines careful planning, clear communication and practical project leadership to ensure every renovation progresses smoothly and every decision contributes to a successful outcome. We undertake complete house and apartment refurbishments, extensions, structural alterations, kitchens, bathrooms and bespoke interior improvements, working closely with each client to understand their priorities and create a realistic programme and budget from the outset. Whether you're planning a straightforward refurbishment or a more complex renovation, we believe every project deserves the same level of organisation, attention to detail and personal involvement. We would be delighted to discuss your plans and prepare a detailed quotation for the labour and general building materials required, together with practical advice on the best way to approach your project.
Get in touch
Latest review:
Restoration & Refurbishment- 2 Oct 2026
Radilina and the Full Circle Renovation team were amazing to work with. They carried out my kitchen renovation, as well as the complete refurbishment of my three-storey house, including reflooring and plastering throughout. From start to finish, communication was clear and professional, and the whole team were highly skilled, reliable and attentive to detail. They also provided helpful suggestions and guidance on materials and finishes, which made the decision-making process much easier, and they completed the installation and work to a very high standard. Despite the scale of the project, they made the whole process as smooth and stress-free as possible. I’m extremely happy with the finished result and would highly recommend Radilina and the Full Circle Renovation team. I would definitely use them again for any future work.
Renovations.Tm
Rating: 5 out of 5
Extension Builder in Denmark Hill
We are an experienced and reliable company specializing mainly in extensions, basements, conversions, skylights. We can carry out renovations or building works to your dream home. As we say, Well Done Is Better Than Well Said, come and check us out now !!!
Get in touch
Latest review:
Tomasz and team did various jobs for me (wooden floor, skirting boards, acoustic wall and floor insulation, plastering, painting, electric work etc). Top finish and workmanship, extremely professional and reliable, friendly, helpful, considerate, punctual, honest, tidy worker.
Mo
Rating: 5 out of 5
Extension Builder in Denmark Hill
Hi, I’m Mo – a skilled and trusted builder with a team of nearly 20 experienced tradesmen. We deliver high-quality results, fast and efficiently, no matter the size of the job. We specialise in everything from small repairs to full-scale builds, including: • Full house builds from the ground up • House extensions and structural alterations • Loft conversions & dormers • Bathroom & kitchen fitting • Plumbing & roofing • Bricklaying & repointing • Carpentry & joinery • Flooring (carpets, lino, laminate, etc.) • Painting & decorating • Plastering & rendering • Tiling • Windows & doors installation • Paving & landscaping • Damp proofing and more With years of experience and a reliable, multi-skilled team, we take pride in completing work to the highest standard — on time and within budget. We’re ready to take on your project and exceed expectations. Get in touch today for a free quote or site visit.
Get in touch
Latest review:
Conversions - General- 6 Aug 2026
He is very professional, reliable. I will recomade him to everyone

4.5

Top rated Extension Builders

Our Extension Builders in Denmark Hill, are rated 4.5 out of 5 based on 22 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 Denmark Hill?

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 Denmark Hill 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 Denmark Hill who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Denmark Hill?

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

Find extension builders in Denmark Hill with MyBuilder

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

Step 2: Compare different extension builders in Denmark Hill

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

Step 3: Hire Denmark Hill extension builders with confidence

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

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

What to ask a Denmark Hill extension builder before hiring?

Before hiring an extension builder in Denmark Hill or extension building company in Denmark Hill, 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 Denmark Hill?

An extension builder in Denmark Hill 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 Denmark Hill 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 Denmark Hill?

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 Denmark Hill 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 Denmark Hill 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 Denmark Hill

Can an extension builder in Denmark Hill help with planning permission?

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

Many Denmark Hill 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 Denmark Hill help with materials and finishes?

Yes, most extension builders in Denmark Hill 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.