Extension Builders in Blackheath

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.8 (20 reviews)

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Some of our top rated extension builders in Blackheath

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Bischell Construction Limited
Rating: 4.9 out of 5
Extension Builder in Blackheath
Design & Build projects that squeeze more out of every pound spent. We’ll deliver an outcome for you that looks a lot more expensive than it really is. It will be tailored to your lifestyle, designed for your senses and fine-tuned to minimise lifetime costs. If you have an eye on value, or looking for maximum ROI, we’ll deliver more for less. It’s about smart design and construction, so the result gives you more performance, better quality of life and a stronger return from your budget.
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Latest review:
Architecture- 27 Jul 2026
Very friendly, professional and trustworthy. Really took his time when he came to assess my walls and gave a very detailed explanation and highlighted all risks. Good communication, I would use him again
NEXGEN BUILDERS LIMITED
Rating: 5 out of 5
Extension Builder in Blackheath
Next Gen Builders - Your Trusted Construction Partner Our Services: NHBC-certified new builds Home extensions (side, rear, and double-story additions) Loft conversions Complete home renovations and transformations Plumbing services End-to-end solutions from design consultation to final finishing What Sets Us Apart: Qualified and experienced construction professionals Superior craftsmanship with meticulous attention to detail Outstanding customer service throughout every project Comprehensive project management from planning to completion Our Time Guarantee: We commit to agreed completion dates in our contracts If we exceed the timeline, we provide daily compensation for overstaying on your property No excuses - we deliver on our promises Why Choose Next Gen Builders: Guaranteed workmanship Exceptional finishing standards Complete peace of mind throughout your project Your trusted choice for all construction needs
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Latest review:
We hired Next Gen Builder for a full kitchen revamp including layout change, underfloor heating, new electrics, and cabinetry. The whole process was smooth, and we couldn’t be happier. It took more time than we thought but it is worth the wait..
pmlarc
Rating: 5 out of 5
Extension Builder in Blackheath
We are RIBA registered architects with a wide range of experience of over 25 years within architecture, design and construction. We are experienced at new builds, full refurbishments, extensions and conversions, and have completed numerous residential and commercial projects in London and beyond.
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Latest review:
Architecture- 13 Apr 2015
We are extremely happy we chose to use Phil for our loft and extension design. Phil is professional, extremely accommodating and a pleasure to work with. He was always contactable, punctual and happy to spend a lot of time with us to discuss designs and the planning process. His design ideas were smart and he presented us with a number of workable options. We wouldn’t hesitate recommend Phil and would certainly use again for any architectural works.
ANDREI C BUILDERS
No reviews yet
Extension Builder in Blackheath
Loft,extension,refurbishment,brickwork,new build,etc
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A2Z construction
Rating: 5 out of 5
Extension Builder in Blackheath
I am a very hard working and trustworthy person. I take pride in my work and customer satisfaction is my priority.
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Latest review:
Handyman- 26 Mar 2026
Very quick to attend and provide the quote. Was able to carry out the job successfully the very next morning. I would definitely use again and would recommend to others. Thank you!
CSKA 1948 Ltd.
Rating: 5 out of 5
Extension Builder in Blackheath
Using STAR Construction, gives you peace of mind that you are choosing a Contractor who uses properly trained and qualified operatives. All materials used are of the best quality and all work is fully Insured and Guaranteed. We offer a competitive price and our work is of the highest standard. If you have seen the home of your dreams, we at STAR Construction will make sure that this home will become a reality! Here to help, so do not hesitate to contact us.
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Latest review:
Kitchen Fitting- 21 Mar 2016
Vass and his team installed our Magnet Kitchen to perfection he utilised every space with great ideas I could not give enough praise for his craftsmanship and he takes great pride in his work, I would definitely recommend him. Thanks to Vass & Anthony
AMMCASS LIMITED
No reviews yet
Extension Builder in Blackheath
General Construction, Plumbing & Heating, Electrical, Roofing, Landscaping. New Build, Extensions, Loft Conversions
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SC General Builders Ltd
Rating: 5 out of 5
Extension Builder in Blackheath
Welcome. I am a builder with 25 years of experience. Have completed a large number of projects from small jobs to major projects such as extensions, loft conversions and full refurbishments, residential and commercial. Excellent quality for reasonable price guaranteed. Professional, reliable, affordable. Hassle free service. We cover all aspects. Fully insured. Thank you. Seb
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Latest review:
Conversions - General- 16 Jun 2024
Excellent communication Good price Did exactly what he said he would do and gave advice on other work that we were doing ourselves Really nice guy Very pleased with his work Would use him again
Amazing constructions limited
Rating: 5 out of 5
Extension Builder in Blackheath
we are specialised-Loft conversion, Extension, Brick work, Plumbing, Electric, Roofing, Bathroom, Tiling, kitchen, Flooring, Paint, and have experience of 15 years.
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Latest review:
Extensions- 10 May 2021
Very Professional and diligent service, even though was hard to get materials because the job was done at the peak of the pandemic, still they managed to sort things out. The job was so nicely done that all the tenant who viewed the house wanted to rent it. I have even given them another job would certainly recommend.
RSN Construction
No reviews yet
Extension Builder in Blackheath
We have over 10 years experience in the domestic construction and refurbishment. Bathroom and kitchen installation. Plumbing and electrical , tiling , painting, floor installation,painting and wallpapering
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Tree Construction Ltd
No reviews yet
Extension Builder in Blackheath
Building new houses, extensions, loft conversions and refurbishment
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Solar construction
No reviews yet
Extension Builder in Blackheath
Our team specialises is all aspects off construction. From loft conversion to shop fitting. We also have a team that will come a build your IKEA furniture. No job to small
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Vkjengineers
No reviews yet
Extension Builder in Blackheath
Hi I am civil engineer worked in lot of projects in London Including groundwork’s, drainage,foundation,under pinning, Paving &drive way etc, I had few lads work for me.
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CHIGWELL CONSTRUCTION SERVICES LIMITED
Rating: 5 out of 5
Extension Builder in Blackheath
When it comes to construction, renovation, and property maintenance, choosing the right team makes all the difference. At Chigwell Construction Services, we offer a complete, end-to-end service from electrical and plumbing work to full-scale refurbishments and 24/7 emergency callouts. With over a decade of experience, industry accreditations, and a strong local presence, we pride ourselves on delivering reliable, high-quality work tailored to each client’s needs. Whether you're a homeowner planning an extension, conversion, renovation, or a business needing reactive maintenance, we're here to get the job done right professionally, safely, and efficiently. Contact us and let our experienced team bring your vision to life.
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Latest review:
Bricklaying- 25 Apr 2022
Eddy & team has been absolutely fantastic. They have been extremely diligent with their work and delivered fantastic result within a very short period of time.
BE-O INTERIOR DESIGN AND CONSULTANCY
No reviews yet
Extension Builder in Blackheath
Be-o Design, Construction, and Consultancy prime intention is to provide cost-effective, quality design & build to all construction sectors throughout the UK. We have been thriving as a successful architectural, structural and MEP design, construction, and consultancy offering exciting and innovative solutions to a wide range of commercial, residential, and private projects. We have a hands-on approach and a commitment to simplicity, quality, functionality, and attention to detail.
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Misha Sup
No reviews yet
Extension Builder in Blackheath
Motivated trainee bricklayer with a strong work ethic and eagerness to learn.
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3.8

Top rated Extension Builders

Our Extension Builders in Blackheath, are rated 3.8 out of 5 based on 20 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 Blackheath?

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

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

What are the hourly rates of extension builders in Blackheath?

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

Find extension builders in Blackheath with MyBuilder

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

Step 2: Compare different extension builders in Blackheath

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

Step 3: Hire Blackheath extension builders with confidence

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

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

What to ask a Blackheath extension builder before hiring?

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

An extension builder in Blackheath 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 Blackheath 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 Blackheath?

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 Blackheath 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 Blackheath 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 Blackheath

Can an extension builder in Blackheath help with planning permission?

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

Many Blackheath 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 Blackheath help with materials and finishes?

Yes, most extension builders in Blackheath 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.