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Siding and Windows in Ajax
Window Replacement and Siding Installation in Pickering and Ajax, Ontario
Looking to upgrade your home’s exterior? We provide professional window replacement and siding installation in Pickering and Ajax, designed for long-lasting performance, energy efficiency, and curb appeal.
With over 30 years of experience, McLellan Contracting delivers quality you can count on. Our SAWDAC-certified installers use Energy Star-rated products, and every project is backed by full licensing, insurance, and strong warranties.
WINDOW REPLACEMENT SERVICES CUSTOM FOR PICKERING AND AJAX HOMES
Whether you're in a century home in Pickering Village or a newer development in Audley North, our window replacement Ajax and Pickering services are tailored to suit your home’s style, structure, and exposure. We install both retrofit and full-frame windows using high-performance products made for Ontario weather. Proudly serving Lakeside, Central Ajax, Southwood, and more with full exterior renovations.
What Makes Our Services Unique:
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Bay, bow, casement, slider, and fixed vinyl windows
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Window Wise Certified installations
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Full-frame or retrofit installations
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Moisture-resistant flashing and foam insulation
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Built to meet Pickering and Ajax’s building codes
PROFESSIONAL SIDING INSTALLATION IN AJAX
Vinyl siding is a smart investment for Pickering and Ajax homeowners looking to protect their homes from the elements while boosting curb appeal. We offer full-service siding installation in Pickering and Ajax, using durable materials that withstand Lake Ontario’s moisture, cold winters, and humid summers. Ideal for Pickering and Ajax’s detached homes, semis, and suburban infills.
Why Choose Our Siding Services:
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Full removal and replacement of old siding
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Vinyl and insulated vinyl options
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Moisture barriers, soffits, fascia, and trim
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Installed by SAWDAC-certified crews
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Backed by the Kaycan Lifetime Warranty
Why Homeowners in Ajax Choose McLellan
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Trusted in the Durham Region for over 30 years
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Specializing in window replacement and siding installation for Ajax neighbourhoods
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Friendly, clean, and professional crews
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Transparent, pressure-free estimates
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Warranty on all products and workmanship
Customer Reviews
I hired another contractor to replace old siding on my home. The contractor presented themselves as knowledgably and had great reviews. Unfortunately, they did not live up to any of those reviews. Siding was put on without any backing, caulking was so bad it was all over my newly installed windows, this is just some of the long list of issues I experienced. The contractor walked off the job twice when the deficiencies were pointed out to him. I then reached out to John McLellan Contracting Inc for help, and they were able to fit me into their schedule and get all the bad work corrected and leave me feeling confident that I was in great hands. The crew that attended the site were professional, courteous and took great pride in their work. I highly recommend this contractor for transparency, timely performance, great workmanship and running a job professionally.
Homeowner
Fixing of a Bad Siding Job
Windows and Siding in Pickering / Ajax
Upgrade Your Property with Window and Siding Services Pickering and Ajax Homeowners Rely On
Don’t wait for drafts, leaks, or fading curb appeal to take over. Our Pickering / Ajax-based team is ready to deliver reliable, high-quality window replacement and siding installation backed by 30+ years of local experience. McLellan Contracting delivers quality window replacements in Ajax that you can count on. Let’s make your home more comfortable, efficient, and beautiful, without the stress.