Extension Builders in Mortlake

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (18 reviews)

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Some of our top rated extension builders in Mortlake

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House Refinement
No reviews yet
Extension Builder in Mortlake
We are a professional team with work field experience and know-how strategy implementation to make sure that each project is delivered as per expectation and within agreed budget. We also work closely with our valued customers, listen to their needs and address them accordingly, which ensures smooth and timely project management is achieved. Our scope is to deliver each project with no return visits!
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Dmytro Dochynets
Rating: 5 out of 5
Extension Builder in Mortlake
Experienced bricklayer. Skilled in brickwork, garden walls, fences and repair jobs. Reliable, tidy and delivering quality work on time.
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Latest review:
Bricklaying- 30 Oct 2025
Dmytro did fantastic job rebuilding garden wall in our landscaping project. Highly recommended
KIM CONSTRUCTION & DEVELOPMENT LTD
No reviews yet
Extension Builder in Mortlake
proud member of the Federation of Master Builders vetted & inspected for quality and trust. KIM Construction and Development offers a complete, end-to-end service across the construction and development sector. From initial architectural design and planning, through to construction, interior design, and ongoing property maintenance, we take care of every detail delivering a seamless process from A to Z. We offer: - Staged Payments: invoices only raised upon your satisfaction of each stage. -Inclusive Project Management:dedicated project manager overseeing every detail. -End-to-End Coordination: We liaise with councils, building control, surveyors, and engineers. -Workmanship Warranty: all projects covered by warranty for complete peace of mind. We focus on major residential projects such as extensions, loft conversions, full refurbishments, and new builds. Our expertise also extends to commercial fit-outs and larger renovation schemes. While we may occasionally assist with smaller works for existing clients, our core strength lies in delivering complete construction solutions that add lasting value to your property.
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ScutariConstruction
Rating: 5 out of 5
Extension Builder in Mortlake
Scutari Construction is a limited company based in London. We are a very reliable and professional team of tradesmen with over 10 years of experience on the building industry, committed to deliver the highest levels of quality and service to our clients.
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Latest review:
Extensions- 14 Apr 2021
Mel and team completely transformed our house in a very timely and professional manner. I honestly cannot say enough good things about him. The team works really hard and their model provides the fastest, highest quality construction at a reasonable price. Use these guys!
PrimeUKContractorsLtd
Rating: 5 out of 5
Extension Builder in Mortlake
Prime UK Contractors is a London-based construction company providing high quality work for a reasonable price. Our projects are always finished on time. Our priority is the satisfaction of our clients. Our team consists of skilled, experienced builders who will help you execute your dream project.
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Latest review:
I recently used PrimeUK Contractors Limited for conversion works at our studios in Camden, and I couldn’t be happier with the results. The project timeline was set at six weeks, and the team delivered right on schedule. Pavlo and his team had a clear understanding of the scope and what needed to be achieved, going above and beyond to make the project a success. The quality and attention to detail in their work were outstanding, and my entire team was thrilled with the final result. Their pricing was competitive and fair, which was another bonus. When we have more work in the pipeline, Pavlo and PrimeUK will definitely be my first call. Highly recommend!
Lux Development LTD
Rating: 5 out of 5
Extension Builder in Mortlake
With a BSC Hons Degree in Construction management and having worked for larger reputable building contractors in the UK. We will Ensure you get the highest Quality of Work at reasonable Prices. Customer Satisfaction is our First Goal of any Project we Undertake. We undertake all types of construction and building projects from Painting and Decorating, Flooring, Roofing, Plastering to More Complex Projects such as extensions.
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Latest review:
Painting & Decorating- 12 Feb 2019
He truly showed professionalism that I had struggled as a guest house operator to get from handy people. He would go out of his way to satisfy. The finished redecorated room project was a masterpiece and took a little longer than planned because of the weather but he gave it his all! I am pleased I took a chance on him as there was no review on his profile when I hired him. I would however, pay attention to work and point out issues as they come up otherwise, you will have dirt and rubbish to content with as the workers leave all the mess after work.
Denis Osan
No reviews yet
Extension Builder in Mortlake
I am a self-motivated individual with a strong aptitude for initiative and problem solving, consistently delivering results with meticulous accuracy and thoroughness. I leverage strong time management and skills to balance multiple priorities.
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M&D BUSHATI BUILDERS LTD
No reviews yet
Extension Builder in Mortlake
We do general builder jobs, We are respectful, serious and professional.
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GSS Develoments LTD
No reviews yet
Extension Builder in Mortlake
We are an established construction company operating since 2006. We do house extensions, Loft Conversions, and full refurbishment work.
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Ceca Developments LTD
Rating: 5 out of 5
Extension Builder in Mortlake
Hael Construction Ltd, a proud member of the Federation of master builders, is a trusted construction company based in North London, delivering high-quality building services across the region. We specialise in new builds, extensions, loft conversions, renovations, groundworks, electrical installations, and plumbing. With a skilled team of qualified tradespeople and experienced project managers, we provide a complete service from design to completion. Our focus is on quality workmanship, transparent communication, and delivering projects on time and within budget.
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Latest review:
Extensions- 23 May 2022
Ceca Developments have done an outstanding work on our side and rear extension project, and we would definitely recommend this company. Firstly, they have offered a really competitive quote for the work and have been very transparent and detailed in regards to how long it will take to complete the project. Sebastjan has been a pleasure to deal with and was very helpful during the project, providing honest and useful recommendations and being available every time we needed anything. All the work has been completed to a very high standard and to the agreed timelines. We did not have to worry about anything during the whole project, which made this a very pleasant experience.
MKSummer Ltd
No reviews yet
Extension Builder in Mortlake
We provide Design & Build services. Planning application drawings and structural calculations, project management and construction service. Our builders are all experienced in new build, extension, loft conversion and interior alterations.
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CDG Carpenrty
Rating: 5 out of 5
Extension Builder in Mortlake
Here at cg project we take on all jobs small or big! Been in the building game for 15years and can turn our hands to any trades. Have a good strong and reliable team behind us to ensure we get the best quality work! Competitive pricing and always try to work within people’s budgets. All jobs are finished to a high standard as we take great pride in our work to ensure above every thing else we have happy customers.
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Latest review:
Carpentry- 16 Sep 2024
Connor gave a competitive price for the job and was willing to work with our budget. The level of workmanship was very high, Connor assessed and carried out the job to a very high standard and very quickly (even though we were on a day rate) communication was great throughout, polite and friendly and the guys cleared up well after the job. Would highly recommend for any carpentry work.
DPS Building & Maintenance Ltd.
Rating: 4.7 out of 5
Extension Builder in Mortlake
We build, refurbish and extend buildings. Our strong regional presence allows us to foster trusting and beneficial working partnership with our customers, consultants, supply chain and local communities.
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Latest review:
Extensions- 15 Oct 2020
DPS were superb from start to finish. They were hired to build a single storey rear extension in North London including a new kitchen and bathroom fit. I met Ralph on site along with a number of other builders, Ralph was highly knowledgeable and clearly explained what was required with practical solutions. DPS clearly scoped out the timeline and cost for each stage of the build and kept to this. They completed several agreed extras throughout the job. Communication with Ralph and the whole DPS team was first class throughout. I own a number of rental properties and can comfortably say DPS are the best builders I've dealt with, I cannot recommend them highly enough, they will be my first port of call for future work.
Tudor Holdings Group Limited
Rating: 5 out of 5
Extension Builder in Mortlake
We are a family business with direct employed tradesman. Our work is to the highest of quality, we always go that bit extra for our customers. We have always worked from recommendations, just completed a double storey side, rear ext, loft conversion in Carshalton. We specialise in structural works, refurbs, loft and property extensions. We can offer a full list of references and often, inspection of our work. We always aim to give full breakdown quotations and fixed prices when possible.
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Latest review:
Extensions- 18 Jan 2023
We highly recommend THG building solutions, they have built a double story extension for us, and from start to finish they were always on time, polite and professional on every aspect. Most importantly they delivered what was promised according to the initial budget and on time! No delays or surprises, just honest and reliable service. We have been approached by several neighbors to comment on how beautiful the extension looks and how quickly it was all done! Overall we’re very happy and glad that we chose Charles and his team as our builders.
Dana Business Group LTD
No reviews yet
Extension Builder in Mortlake
Dana Business Group Ltd – Property Renovation, Extensions & Loft Conversions Dana Business Group Ltd provides professional renovation, construction, and repair services for houses and apartments. We undertake projects of any size, from small repairs to full refurbishments, house extensions, and loft conversions. Our services include: * Full and partial property renovations * House extensions and structural works * Loft conversions * Kitchen and bathroom fitting * Plumbing services * Electrical works * Painting and decorating * Flooring installation * Plastering and drywall * General maintenance and repairs We guarantee high-quality workmanship, reliable service, and strong attention to detail. Free quotes available. Competitive prices. Flexible scheduling.
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Better building
No reviews yet
Extension Builder in Mortlake
High ticket jobs
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4.1

Top rated Extension Builders

Our Extension Builders in Mortlake, are rated 4.1 out of 5 based on 18 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 Mortlake?

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

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

What are the hourly rates of extension builders in Mortlake?

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

Find extension builders in Mortlake with MyBuilder

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

Step 2: Compare different extension builders in Mortlake

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

Step 3: Hire Mortlake extension builders with confidence

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

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

What to ask a Mortlake extension builder before hiring?

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

An extension builder in Mortlake 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 Mortlake 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 Mortlake?

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 Mortlake 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 Mortlake 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 Mortlake

Can an extension builder in Mortlake help with planning permission?

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

Many Mortlake 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 Mortlake help with materials and finishes?

Yes, most extension builders in Mortlake 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.