Expert installation of Luxury windows and doors
Custom residential projects in GTA and Muskoka
Gallery
WHAT WE OFFER
Choose 303 Services for select, expert installation of luxury windows and doors. Our hands-on approach at every phase ensures a meticulous process, uncompromising quality control, and consistent results—helping your projects earn trust and admiration from the most discerning clients. Discover our exclusive partnership opportunities below.
Our service is selective and tailored, focused on hardware upgrades and limited annual maintenance packages for all window and door systems. We customize solutions to your project's needs with close attention to detail, delivering results that set a high benchmark in custom fenestration.
Our consultation is practical and clearly defined, drawing on experience and honest guidance. We help with product selection and planning where we add real value. Our advice is straightforward and reliable, ensuring attentive support where it's needed most.
TESTIMONIALS
Denis Zigante
Bigfoot Door Managing Partner
installation
I've had the chance to work with Magnus and his Team on several projects now, and the one thing that always stands out is the quality of their work. They approach every installation with precision, care, and a real sense of pride. It's never about just getting the job done-it's about doing it the right way, so that the finished product performs and looks exactly as it should.
That attention to detail is especially important when you're dealing with highend products or luxury projects where there's no room for mistakes. On top of that, they're always pushing forwardwhether it's pursuing certifications like Passive House or staying involved in industry events. That commitment to improvement gives me full confidence recommending them.
If you're a builder, architect, or product manufacturer looking for an installer who will treat your project with the same level of care that you do, I can't recommend them enough.
Andrew J Goldberg
Goldcon Project Management Managing Partner
installation
303services is a trusted partner for our high-end residential projects. Their attention to detail, professionalism, and technical expertise with premium window systems consistently impress us. They don’t just install — they troubleshoot challenges quickly and effectively, ensuring every project runs smoothly. Reliable, responsive, and committed to quality, they deliver exceptional results
Vick Mandla
Shelby Windows Owner
Consultataion
303 Services is a premier, high-end provider of window and door installation, renowned for their unwavering commitment to quality, meticulous attention to detail, and exceptional craftsmanship. I have personally used their services and can attest to their professionalism and dedication, and I’ve also recommended them to friends and clients who have all given me nothing but great feedback. The team takes immense pride in delivering flawless results, ensuring each project is completed to the highest standards with genuine care. What truly sets them apart is their friendly, attentive approach—they listen carefully to your needs, making the entire process smooth and stress-free. Their dedication to customer satisfaction and personable, skilled personnel make them the top choice for anyone seeking reliable, top-tier service. It’s been a pleasure working with them from day one.
ABOUT US
At 303 Services, every window project is led personally by its owners with over a decade in the luxury fenestration industry.
Together, we created our own process to guarantee flawless installs and truly lasting value. Our mission is simple: protect your investment and deliver results that stand the test of time.
We take on only projects where our careful, hands-on approach can make a difference—ensuring fewer issues, less worry, and performance you can trust for years ahead. We believe in thoroughness, craftsmanship, and doing things right, every time. If you’re ready for a higher standard, we’d be honoured to help realize your vision.
Thorough Process
We ensure every project is carefully planned and carried out step-by-step, leaving nothing to chance.
Quality Control
We maintain high standards by inspecting all work at key stages to guarantee flawless results.
Reliability
You can count on us to do what we promise—on schedule and with consistent communication.
Professionalism
We treat every client and project with respect, transparency, and a commitment to excellence from start to finish.
PARTNERSHIP OPPORTUNITIES
303services partners with organizations who share our commitment to quality and long-term results. If you’re a luxury builder or supplier seeking expert installations, explore these partnership opportunities:
We ensure your products achieve their full performance
For luxury builders and designers tackling unique, high-value
We ensure your products achieve their full performance potential while maintaining your brand’s reputation with discerning clients.
For luxury builders and designers tackling unique, high-value projects, we offer early consultation, seamless project management, and millimeter-precision installation - ensuring exceptional results
OUR WARRANTY
Installation Warranty
We include 1 year installation warranty covering all aspects of our workmanship.
Manufacturer Warranty Compliance
We install every window and door system according to the specific manufacturer's warranty requirements,
Installation Warranty
We include 1 year installation warranty covering all aspects of our workmanship. We guarantee that every window and door installation meets industry standards: level within 2mm (1/16"), plumb within 2mm, and square within 1mm (1/32") tolerance for optimal performance. Our installations are performed according to code - ensuring proper water management, structural integrity, and long-term durability. If any installation-related issues arises within the warranty period, we will return to correct them at no charge.
Manufacturer Warranty Compliance
We install every window and door system according to the specific manufacturer's warranty requirements, ensuring your product warranties remain fully valid. Each window system has unique specifications, and we are skilled with multiple brands and at learning new ones. We follow all manufacturer installation protocols precisely, obtaining necessary certifications when required, and document our process to support warranty claims. We use our expertise to protect both our installation warranty and your manufacturer's product warranty.
Get in touch
Let’s create something exceptional together.
certifications
