Building Trust Through
Quality Craftsmanship
We transform homes across North London with expert loft conversions, house extensions and garage conversions. Your vision, our expertise.
From Iconic London Projects to Your Home
Fixiz was founded in 2020 by Javier Vazquez, a seasoned Construction Senior Project Manager since founding Fixiz in 2020. 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.
Fixiz began as a maintenance and property services company, building a trusted reputation with homeowners across North London before expanding into full construction projects.
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 North London, delivering loft conversions, house extensions and garage conversions that genuinely transform how families live.
The Expert Behind Every Project
Javier Vazquez
Founder & Director
With experience 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.
Work directly with Javier and the Fixiz team — book your free site survey today.
Get a Free Quote →Why London Homeowners Choose Fixiz
Six principles that guide every project we take on.
Exceptional Craftsmanship
Every project benefits from the same rigorous quality standards used on landmark London construction projects.
Fixed Price Guarantee
Transparent pricing with no hidden costs. You receive a detailed fixed-price quote before we start any work.
Fully Insured
Complete peace of mind with comprehensive insurance coverage on all our projects.
On-Time Delivery
Realistic timelines set from the start. Our project management expertise means your build completes on schedule.
Local London Expertise
In-depth knowledge of London planning regulations across all Greater London boroughs, so your project runs smoothly.
Clear Communication
From initial consultation to final handover, we keep you informed at every stage — no surprises.
“Javier and his team at Fixiz completed a full-scale interior and exterior renovation of our four-bedroom home in London — complete bathroom and kitchen renovations, and a rear extension.”
Shalaka Ranadive — Google review
Read all 40 five-star reviews →Results That Speak for Themselves
Building Excellence Since Day One
From iconic London developments to transforming homes across North London — our journey in milestones.
International Construction Career
Experience in major projects across Spain, Venezuela, Ireland and the UK — including Tottenham Hotspur Stadium and HS2 — shaping the skills and standards that define Fixiz today.
Fixiz Founded
Javier Vazquez establishes Fixiz LTD with a single mission: bring landmark-quality construction expertise to every North London homeowner.
Maintenance & Services
Fixiz started as a maintenance and property services company, building a trusted reputation with homeowners across North London before expanding into full construction projects.
Rapid Growth
Hundreds of loft conversions, house extensions and garage conversions completed across Greater London — earning five-star reviews at every step.
200+ Projects Milestone
Celebrating 200+ completed projects with a 5.0 star rating, and expanding our offering into damp surveying and the Fixiz Academy training programme.
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.
020 7971 1318 Call us — MON TO FRI, 8am – 6pm