We Will Realize Your Vision On-time and On-budget!
Working with Your Design or Creating One Together
Smart Extensions & Spacious Loft Conversions Across Greater London
Established in 2000
Customer Loyalty
High-Quality Craftsmanship
Experienced Team
On-Time, On-Budget Delivery
Est. 2000
Add space, value, and character to your home with expertly built side returns, rear extensions, and full-width loft conversions.
We handle planning, design, and construction — from concept to completion.
We handle planning, design, and construction — from concept to completion.
What’s Included in Our Extension & Loft Conversion Process
We begin with a tailored visit to assess your property’s potential.
Whether you already have plans or just an idea, we’ll meet on site to explore layout options, take key measurements, and discuss structural possibilities for your side return, rear extension, or loft.
Whether you already have plans or just an idea, we’ll meet on site to explore layout options, take key measurements, and discuss structural possibilities for your side return, rear extension, or loft.
We support both planning applications and permitted development routes.
If you need drawings or planning support, we can connect you with experienced designers or work directly with your architect. Once planning is approved or confirmed, we help prepare full tender documentation.
If you need drawings or planning support, we can connect you with experienced designers or work directly with your architect. Once planning is approved or confirmed, we help prepare full tender documentation.
You’ll receive a transparent cost breakdown and outline schedule.
We provide a full scope of works with clearly priced construction elements, an anticipated timeline, method statements, and proof of insurance. You’ll know exactly what to expect before work begins.
We provide a full scope of works with clearly priced construction elements, an anticipated timeline, method statements, and proof of insurance. You’ll know exactly what to expect before work begins.
We take care of all technical prep before breaking ground.
We’ll finalise structural drawings, ensure all parties (engineer, designer, client) are aligned, and prepare the site. This includes arranging temporary protection, waste removal, and safe access — especially important when clients remain in the property.
We’ll finalise structural drawings, ensure all parties (engineer, designer, client) are aligned, and prepare the site. This includes arranging temporary protection, waste removal, and safe access — especially important when clients remain in the property.
Our team carries out all structural, building, and fit-out work.
We deliver the full build — from excavation and steel installation to roofing, insulation, first and second fix services, and finishes. You'll receive Monthly updates, valuations, and the option to adapt certain details as the space takes shape.
We deliver the full build — from excavation and steel installation to roofing, insulation, first and second fix services, and finishes. You'll receive Monthly updates, valuations, and the option to adapt certain details as the space takes shape.
We provide all completion documentation and warranties.
Once the build is complete, we issue electrical and gas certificates, building control sign-off (if applicable), and a detailed handover pack. We’re also available for future improvements or additions — many clients come back for more.
Once the build is complete, we issue electrical and gas certificates, building control sign-off (if applicable), and a detailed handover pack. We’re also available for future improvements or additions — many clients come back for more.
Snippets of our work in progress
We work hard every day to make our customers' lives better and happier
From Foundations to Finishes — We Handle It All
Every extension or loft conversion we deliver is shaped around your lifestyle and built with care. We handle everything — from structural alterations, steelwork, and insulation to the final layer of paint. The result? A calm, comfortable space that feels like it’s always been part of your home.
At Masters, we manage the entire process so you don’t have to worry about the mess, logistics, or stress. You stay informed and in control — and enjoy the transformation as it unfolds.
Every extension or loft conversion we deliver is shaped around your lifestyle and built with care. We handle everything — from structural alterations, steelwork, and insulation to the final layer of paint. The result? A calm, comfortable space that feels like it’s always been part of your home.
At Masters, we manage the entire process so you don’t have to worry about the mess, logistics, or stress. You stay informed and in control — and enjoy the transformation as it unfolds.
Kitchen extension in West Kensington
This project involved a kitchen extension and house redecoration in West Kensington for a regular client. Collaborating with their architect, the client designed a cozy, bright, and family-oriented kitchen space, which significantly enhanced the value of their property.
Rear Kitchen Extension in Wandsworth.
Rear Extension in Wandsworth
We were invited to tender for this project by a couple who had already worked with a designer and had a full set of drawings and specifications ready. The recommendation came from a previous client — a friend of theirs — for whom we had completed a loft conversion and full house renovation in Kingston-Upon-Thames.
This extension to a traditional terraced house in Wandsworth features a reclaimed brick wall, large skylights, and full-width sliding doors that open onto the garden. Collaborating closely with the client’s designer, we delivered a bright, open-plan space that feels warm, relaxed, and perfectly connected to the outdoors.
We were invited to tender for this project by a couple who had already worked with a designer and had a full set of drawings and specifications ready. The recommendation came from a previous client — a friend of theirs — for whom we had completed a loft conversion and full house renovation in Kingston-Upon-Thames.
This extension to a traditional terraced house in Wandsworth features a reclaimed brick wall, large skylights, and full-width sliding doors that open onto the garden. Collaborating closely with the client’s designer, we delivered a bright, open-plan space that feels warm, relaxed, and perfectly connected to the outdoors.
Loft Conversion in Clapham Common.
Loft Conversion in Clapham Common, London – Creating a Light-Filled Family Space
This project involved the construction of a full-width rear dormer to transform the unused attic into a bright and spacious living area. The new loft now accommodates two comfortable bedrooms and a stylish bathroom, dramatically increasing the usable floor space of this family home.
The layout was thoughtfully designed to suit the household's growing needs, providing each family member with their own private retreat while maintaining a cohesive and calm interior. Natural light floods the space through roof windows, and built-in storage maximises efficiency without compromising style.
This project is a great example of how loft conversions can be practical and beautiful, offering long-term value and daily comfort.
This project involved the construction of a full-width rear dormer to transform the unused attic into a bright and spacious living area. The new loft now accommodates two comfortable bedrooms and a stylish bathroom, dramatically increasing the usable floor space of this family home.
The layout was thoughtfully designed to suit the household's growing needs, providing each family member with their own private retreat while maintaining a cohesive and calm interior. Natural light floods the space through roof windows, and built-in storage maximises efficiency without compromising style.
This project is a great example of how loft conversions can be practical and beautiful, offering long-term value and daily comfort.
Why Choose Masters for Your Home Extension?
With over 25 years of experience in property renovation across London, we don't just build—we craft thoughtful, lasting spaces that reflect how people live and work. Whether it’s kitchens, bathrooms, lofts, or entire homes, we build trust through quality, clarity, and care. Here’s why discerning homeowners and commercial clients consistently choose Masters.
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Specialist Structural Experience
We have extensive hands-on knowledge in structural work — from installing steel beams and removing load-bearing walls to forming new floors, dormers, and staircases. We deliver safe, approved, and compliant alterations that feel like part of the original house. -
Fully Insured & Building Regs Compliant
We hold full public liability and employer’s liability insurance. All our work meets or exceeds current Building Regulations. We collaborate closely with building inspectors and structural engineers at every stage. -
End-to-End Project Delivery
From groundworks and steel installation to plumbing, electrics, roofing, and finishes — we manage every element of the build in-house or with trusted subcontractors. One point of contact, full accountability. -
Transparent Cost Breakdown
We provide a detailed, itemised estimate before work begins — covering labour, materials, and any provisional sums. No vague figures. No hidden extras. You always know what you're paying for. -
Respect for Your Home and Routine
Whether you’re living in the property or nearby, we adapt our workflows to minimise disruption. Dust control, safe access, daily clean-ups, and courteous communication come as standard. -
Trusted by Returning Clients
Much of our work comes from personal recommendations. Many clients return to us for their next extension or loft project — a testament to the relationships we build, not just the buildings.
Planning an extension, loft conversion, or complete renovation in London? You're not alone. One of the most common questions we hear is:
"How much will it cost?"
"How much will it cost?"
Have more questions about your upcoming renovation? You might find immediate answers in our comprehensive Frequently Asked Questions (FAQs) section. If your query isn't covered there, or if you prefer to speak with us directly, please don't hesitate to email us at buildwithmasters@gmail.com or give us a call.
Tell Us About Your Project & Get a Free Consultation
Send us details about your project, including the scope of work, property type, and any existing plans or drawings. Our team will review your enquiry and contact you to arrange a site visit or phone consultation to discuss your project in more detail.
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