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☆ Trusted Since 2020

Building Trust Through Quality Craftsmanship

We transform homes across London with expert loft conversions, house extensions and garage conversions. Your vision, our expertise.

200+
Projects Completed
25+
Years Experience
5.0
Star Rating
100%
Fully Insured
Fixiz loft conversion project in London
25+Years Experience
OUR STORY

From Iconic London Projects to Your Home

Fixiz was founded in 2020 by Javier Vazquez, a seasoned Construction Senior Project Manager with over 25 years of hands-on industry experience.

During his career, Javier worked on some of London's most iconic construction projects including Tottenham Hotspur Stadium and HS2, as well as major developments across Spain, Venezuela, Ireland and the UK.

We started Fixiz with one simple belief: every homeowner deserves access to the same level of professional craftsmanship that goes into landmark construction projects.

Today, Fixiz brings that same precision and expertise directly to homeowners across London and the M25, delivering loft conversions, house extensions and garage conversions that genuinely transform how families live.

MEET THE FOUNDER

The Expert Behind Every Project

Leadership rooted in decades of hands-on construction experience.
Javier Vazquez - Founder of Fixiz London building services

Javier Vazquez

Founder & Director
Our mission is delivering excellence in conversions and extensions. Every project we take on receives the same attention to detail as a landmark build.

With over 18 years managing high-profile construction projects across the UK and internationally, Javier brings a rare combination of strategic project management and hands-on building expertise to every Fixiz project.

His experience on projects like Tottenham Stadium and HS2 means Fixiz clients benefit from processes, safety standards and quality control typically reserved for multi-million pound developments.

Tottenham Stadium HS2 25+ years experience Senior Project Manager International Experience
OUR VALUES

Why London Homeowners Choose Fixiz

We combine decades of large-scale construction expertise with a personal approach to every residential project.
★

Exceptional Craftsmanship

Every project benefits from the same rigorous quality standards used on landmark London construction projects. No shortcuts, no compromises.

💰︎

Fixed Price Guarantee

Transparent pricing with no hidden costs. You receive a detailed fixed-price quote before we start, so you know exactly what you are paying for.

🔒︎

Fully Insured

Complete peace of mind with comprehensive insurance coverage on all projects. Your property and our work are fully protected throughout.

📅︎

On-Time Delivery

We set realistic timelines and stick to them. Our project management expertise means your build is completed on schedule, every time.

📍︎

Local London Expertise

In-depth knowledge of London planning regulations, building codes and local authority requirements across all Greater London boroughs and the M25.

💬︎

Clear Communication

From initial consultation to final handover, we keep you informed at every stage. Direct access to your project manager throughout the build.

FIXIZ IN NUMBERS

Results That Speak for Themselves

Every number represents a homeowner who trusted us to transform their property.
200+
Projects Completed
25+
Years Industry Experience
5.0
Average Star Rating
98%
Client Satisfaction Rate
ACCREDITATIONS

Certified by the Best in the Business

Our accreditations demonstrate our commitment to the highest industry standards and ongoing professional development.
FMBFSBTrustMarkFire Service CollegeCity and GuildsFederation of Damp
OUR JOURNEY

Building Excellence Since Day One

From international mega-projects to transforming London homes, our journey is built on a foundation of quality and trust.
1995 - 2019

International Construction Career

25+ years in major construction projects across Spain, Venezuela, Ireland and the UK, including Tottenham Stadium and HS2.

2020

Fixiz Founded

Javier Vazquez establishes Fixiz LTD to bring professional-grade construction services directly to London homeowners.

2021 - 2023

Rapid Growth

Expanding our team and capabilities, completing hundreds of loft conversions, house extensions and garage conversions across Greater London.

2024 - Present

200+ Projects Milestone

Reaching over 200 completed projects with a 5-star rating, expanding into damp surveying, leak detection and our Fixiz Academy training programme.

WHAT WE DO

Our Core Services

From design to completion, we handle every aspect of your building project with expert precision.
🏠

Loft Conversions

Dormer, Velux and mansard loft conversions. Transform unused attic space into stunning bedrooms, offices or living areas.

🏗

House Extensions

Rear, side and wrap-around extensions. Add valuable space to your home with single or double storey options.

🔧

Garage Conversions

Full and partial garage conversions. Create functional living space perfect for home offices, gyms or extra bedrooms.

View All Services →
READY TO START?

Transform Your Home Today

Get a free, no-obligation quote. Tell us about your project and we will arrange a consultation at a time that suits you.

Get a Free Quote → ☎ 020 7971 1318