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Some of our top rated window contractors in Thornhill, Ontario

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  • Window Contractor in Thornhill, Ontario

    My name is Nicholas. I have been in construction for about 7 years. I have worked in commercial buildings, residential homes across the GTA. My work ranges from hanging paintings, mounting tvs, painting, to basement renovation. I take pride in my work. My work is not done until employer is satisfied. When I am hired for a job, i leave not stone unturned until the work is completed.

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  • Window Contractor in Thornhill, Ontario

    True Label Contracting provides high-quality flooring and renovation services across Toronto and the GTA. With over 7 years of hands-on experience, we specialize in vinyl, laminate, hardwood, and tile installation, along with full kitchen, bathroom, and basement renovations. We take pride in delivering clean, precise workmanship with attention to detail from start to finish. Whether it’s leveling subfloors, installing flooring, or completing full renovations, our goal is to provide durable results and a smooth, stress-free experience for every client. We work with trusted trades including electricians, painters, and custom kitchen teams to handle projects of any size.

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  • Window Contractor in Thornhill, Ontario

    At Dream Renovations, we specialize in transforming spaces into dreams. With a passion for design and a commitment to quality craftsmanship, we offer a comprehensive range of renovation services tailored to meet the unique needs of each client. Whether you're looking to modernize your stairs , create a cozy living area, or enhance your home, our skilled team of professionals is here to guide you through every step of the process. We pride ourselves on our attention to detail, transparency, and customer satisfaction. Our collaborative approach ensures that your vision becomes a reality, using the finest materials and innovative techniques. From concept to completion, we make renovation easy and enjoyable, respecting both your time and budget.

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  • Window Contractor in Thornhill, Ontario

    Hello there! If you’re looking for a company that prides itself on quality work and the desire to please our clients, we’re the right fit for you. No matter how big or small the job is, commercial or residential we do it all.

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  • Window Contractor in Thornhill, Ontario

    I am a reliable and detail-oriented handyman offering quality workmanship and honest service. I specialize in small to medium home repairs, upgrades, and maintenance projects. My focus is always on clear communication, fair pricing, and delivering results that homeowners can trust. Services I Provide • Drywall repair & installation • Tile installation & grout repair • Painting (interior, rooms, bathrooms,hallways /exterior touch-ups) • Door & trim and baseboards installation • Minor plumbing fixes (faucets, toilets, leaks) • Electrical basics (switches, outlets, lighting installs) • Furniture assembly(ikea) & general

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  • Window Contractor in Thornhill, Ontario

    We are a team of pro interior reno guys who have been in the industry more than 5 years. We have experience on both residential and commercial interior renovation. We also have reliable partners of licensed plumbers and electricians. So, we can take care of your lovely property throughoutly. Please do not hesitate to give me a call.

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  • Window Contractor in Thornhill, Ontario

    Professional Renovation Contractor – 10 Years of Experience With over 10 years of experience in the renovation industry, I take pride in providing high-quality workmanship, reliable service, and attention to detail on every project. I specialize in painting, flooring installation, and bathroom renovations, helping homeowners improve their spaces with professional results. My Services & Expertise: * Painting: Interior painting, wall and ceiling painting, surface preparation, patching, touch-ups, and clean, smooth finishes. * Flooring: Flooring installation, including laminate, vinyl plank, and other flooring materials, as well as floor preparation, cutting, and finishing details. * Bathroom Renovations: Bathroom upgrades, fixture replacements, toilet installation, vanity installation, and general bathroom improvement work. * General Home Renovations: Home repairs, finishing work, small renovation projects, and other home improvement services. Service Area: I proudly serve homeowners throughout the Greater Toronto Area (GTA), including Toronto, North York, Scarborough, Markham, Richmond Hill, Vaughan, Mississauga, Brampton, and surrounding areas. Why Choose Me? I believe that great renovation work comes down to quality, honest

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  • Window Contractor in Thornhill, Ontario

    Hi! I'm with Sunjor Renovations, a dedicated team based in the GTA specializing in high-quality kitchen, bathroom, and full-home renovations. We take pride in delivering excellent workmanship, clear communication, and on-time project completion. Whether you're planning a full remodel or a small upgrade, we're here to make your vision a reality. Let's build something great together!

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  • Window Contractor in Thornhill, Ontario

    Vienna Build and Design brings your renovation ideas to life with precision and care. We specialize in carpentry, tiling, drywall, flooring, and demolition, tackling projects big and small. Our team combines skill, reliability, and attention to detail to transform your space exactly how you envision. From concept to completion, we’re committed to quality workmanship and client satisfaction — because your dream home deserves nothing less.

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  • Window Contractor in Thornhill, Ontario

    DBR delivers high quality and reliable professional services.

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  • Window Contractor in Thornhill, Ontario

    Veles Construction Ltd. | Construction & Renovation Experts in the GTA Veles Construction Ltd. is a full-service construction and renovation company serving Toronto and the Greater Toronto Area (GTA). We deliver high-quality residential renovations, new construction, and commercial fit-out services with a strong focus on craftsmanship, clear communication, and long-term value. Our residential services include basement finishing, kitchen and bathroom renovations, whole-home and condo renovations, as well as structural upgrades and home additions. We also specialize in custom home construction, basement underpinning, laneway houses, garden suites, and multiplex construction. For commercial and industrial clients, we provide office, retail, restaurant, warehouse, and franchise renovations, along with specialized environments such as medical clinics, dental offices, wellness spaces, and fitness facilities.

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  • Window Contractor in Thornhill, Ontario

    Cs Construction can help you with your house renovation, install or replace window frames, build garage, install fence, build pergola, gazebo or garden house, build or replace decking, install or renovate stairs, repair or maintain fence, various small jobs, structural work for construction, carpentry framing, install or repair acoustic ceiling tiles & accessibility modifications request in North York and its surrounding cities. They’re at your disposal to listen and assist you in all your projects. Get in touch with Cs Construction now to discuss your needs and arrange a quote.

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  • Window Contractor in Thornhill, Ontario

    Hi! I’m a professional handyman offering friendly, skilled, and on-time service for a wide range of home improvement tasks. 🔧 Services I Offer: Furniture Assembly – IKEA, Wayfair, or any flat-pack furniture, done right. Shed Assembly & Shed Base – Full setup of outdoor sheds, including leveled base construction. Fence Work – Fence installation, replacement, and minor repairs. General Repairs – Small fixes and maintenance jobs around the house. ✅ Why Choose Me? Experienced, detail-oriented, and efficient I bring my own tools and treat your space with care Clear communication and fair pricing

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  • Window Contractor in Thornhill, Ontario
    • Best of Awards 2026

    ☆ FREE ESTIMATES☆ • for 1-2 storey buildings/ or properties with roof access/hatches/balcony that are 3 storey +++ • $500 + tax assessment fee for building over 3 storeys (with no accessibility other than a ladder) ☆ REQUESTS☆ • Please provide your address, phone number and email when submitting a request on Homestars or by email, Thank you! ☆ WE PROVIDE RESIDENTIAL AND COMMERCIAL SERVICES ☆ • roofing and exterior services • repairs, inspections, remedial works ☆ CERTIFIED INSTALLERS • CertainTeed Landmark | Surestart warranty providers • Velux Verified WE ARE LOOKING FORWARD TO WORKING WITH YOU! _________________________________________________________________ WE PROVIDE: ☞ ROOFING INSTALLATIONS + SERVICES (Shingle, Flat, Cedar, Metal, Slate, Cool Roof Applications) ☞ EAVESTROUGH & ALUMINUM INSTALLATIONS + SERVICES (Eavestrough, Downspouts, Soffit, Fascia) ☞ SIDING INSTALLATION + SERVICES (Vinyl, PVC, Fibre Cement, Wood, Shake, Engineered, Steel, Aluminum) ☞ CUSTOM METAL SERVICES (Caping, flashing, Bay Windows, and more) ☞ SKYLIGHT SERVICES (Velux, Columbia and Artistic/ Installation + repairs) _________________________________________________________________ ☆ RESIDENTIAL AND COMMERCIAL ROOF INSTALLATION, REPLACEMENT AND REPAIR: • CertainTeed verified installer • Fiberglass/Asphalt Shingle / architectural • Cedar Shingle/Shake • Natural Slate and Synthetic Slate • Steel Roofs (i.e. standing seam) • Flat Roofing/ torch down application (Residential and Commercial) / repair TPO and EPDM ________________________________________ ☆ ALUMINUM AND SPECIALTY SERVICES: • Eavestroughs • Downspouts • Soffit • Fascia • Leaf Guard • Rain Barrels • Copper eavestrough ________________________________________ ☆CUSTOM METAL AND FLASHING SERVICES • Cap and parapet flashing • Custom flashing for windows and doors (i.e. curbs) • Chimney flashing • Roof and wall flashing Please Note: We do not install PVC or galvanized eavestrough/gutter systems ________________________________________ ☆ SIDING AND CLADDING SERVICES • Vinyl • PVC or PVCD • Fibre cement • Steel • Aluminum • Genuine Wood ________________________________________ ☆ SKYLIGHTS AND SUN TUNNELS • Velux verified Installers • curbmount / deck mount / smart skylight • venting (opening) or fixed (closed) • Manual and Solar • Accessories / smart home automation / remotes / blinds ________________________________________ ☆ WHY US? ☞ Eclipse Roofing has gained the trust and confidence of countless customers throughout the GTA by providing: PROFESSIONAL, RELIABLE, & PROVEN QUALITY SERVICE ☞ The majority of our projects are received as personal referrals, and chances are that we have worked with someone you know. We are proud of our long list of happy clients in the GTA area. Our goal is to exceeded customer expectations by providing the best value and service. ________________________________________

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  • Window Contractor in Thornhill, Ontario

    Superior Home Improvements offers: Vinyl Windows & Patio Doors & Steel Entrance Doors Our company is built on simple ideas and common sense. *Use effective communication to discover out what our clients needs are. *Be upfront about our ability to meet those needs, even at the risk of losing business. *Owner operated for 39 years! *Educate our customers to the best of our ability about the whole process. *We install high efficiency thermal vinyl windows and patio doors. *Our vinyl windows and patio doors are among the highest rated for thermal efficiency in the industry, and are backed by the best warranty available. *We specialize in brick to brick, (stud to stud) installations.In most circumstances ,installing a window on top of an old frame simply doesn't make sense!

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4.9

Top rated Window Contractors

Our Window Contractors in Thornhill, Ontario, are rated 4.9 out of 5 based on 552 reviews from homeowners like you.

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What types of services are offered by window installers in Thornhill, Ontario?

Window installers in Thornhill, Ontario provide solutions for a wide range of home and business needs. Working with a pro ensures projects are completed efficiently and are tailored to your property’s specific requirements.

Popular services offered by window contractors in Thornhill, Ontario include:

  • Installing or replacing glass windows to improve energy efficiency and ensure your home is protected from drafts

  • Installing or replacing window frames to upgrade aging or damaged frames and provide a secure foundation for new window panes

  • Integrating or replacing skylights or light domes to bring natural light into darker areas of the home

  • Fitting or replacing insect screens to keep bugs out while allowing fresh air to circulate

  • Repairing windows to fix issues like broken seals, damaged hardware, sticking tracks, or cracked panes

  • Repairing dormers or skylights to address leaks, worn flashing, or structural problems that can cause moisture damage if left untreated

  • Weatherproofing windows and doors to help homes handle extreme cold, snow, and temperature fluctuations

Find the right window contractor in Thornhill, Ontario with ease. Share the details of your project on HomeStars, and local pros will get in touch. Browse their profiles, see past work, and request quotes to make an informed decision for your home or business.

What are the average costs of window installation and replacement contractors in Thornhill, Ontario?

Before you start working with a window contractor in Thornhill, Ontario it’s helpful to understand typical pricing. Knowing the usual costs for window work in your area can help you plan your budget and choose the right materials.

Most window contractors in Thornhill, Ontario provide flat project quotes for both repairs and installations. This pricing usually reflects the type of window, labour involved, materials, disposal fees, and any additional features such as energy-efficient glass or custom sizing.

For common window installation and replacement jobs in Thornhill, Ontario, expect the following:

  • Standard vinyl window replacement cost: $300 to $800 per window, including installation
  • Energy-efficient or triple-pane window installation: $600 to $1,200 per window
  • Installing or replacing window frames: $600 to $1,200 per window
  • Installing or replacing skylights or light domes: $1,000 to $4,000+
  • Installing or replacing insect screens: $50 to $150 per window
  • Repairing dormers or skylights: $300 to $1,200
  • Minor window repairs (resealing, hardware fixes): Often $150 to $500
  • Weatherproofing windows and doors: $5 to $10 per window; $200 to $600 for all windows and doors

Find window contractors in Thornhill, Ontario on HomeStars

Whether you need a simple repair or full window replacements, connecting with window contractors in Thornhill, Ontario is straightforward. HomeStars makes it easy to find the right fit for your project.

How to hire Thornhill, Ontario window installation contractors on HomeStars:

  1. Start by posting your project. Clearly outline the type of window installation or repair you’re planning, and add pictures to help window contractors in Thornhill, Ontario understand the job.

  2. Compare profiles, review work history and read customer feedback for window installation and window replacement contractors in Thornhill, Ontario.

  3. Connect with multiple window contractors in Thornhill, Ontario to discuss your project, request quotes and ask any questions.

  4. Hire the right pro to get the job done and leave a review based on your experience. Our review system helps highlight those who deliver great results and flags issues when work doesn’t meet expectations.

Thanks to HomeStars, you find and compare local window contractors in Thornhill, Ontario easily. All window installers in Thornhill, Ontario who join our platform are verified through ID and company checks, so you can hire with confidence.

What to ask a window contractor in Thornhill, Ontario before hiring?

If you’re wondering how to choose a window contractor in Thornhill, Ontario, these questions can help you find the right match for your project.

Are you licensed and insured?

It’s always a good idea to confirm that window contractors in Thornhill, Ontario have the proper licensing for your area and carry insurance. This protects you in case of accidents or damage during installation or repairs.

What materials and window types do you recommend?

The right window contractor in Thornhill, Ontario will explain the options available, such as vinyl, aluminum, wood, or energy-efficient windows, and advise on what works best for your home and climate.

How do you handle unexpected issues?

Occasionally, Thornhill, Ontario window installers encounter problems like hidden water damage or framing issues. Knowing in advance how they handle additional work or costs can save stress later.

Will you take care of permits if required?

Some window installations, particularly egress windows, large replacements, or projects involving structural changes, may require permits from your municipality. It’s important to ask window contractors in Thornhill, Ontario whether they handle the permit application and approval process or if that responsibility falls to you.

FAQ: Common questions about window contractors in Thornhill, Ontario

Do Thornhill, Ontario window contractors offer warranties or guarantees?

Many window installers in Thornhill, Ontario provide warranties on both materials and installation. Clarifying coverage protects you if problems arise after the project is complete.

Do Thornhill, Ontario window contractors provide custom solutions for unique window sizes or shapes?

Many window installers in Thornhill, Ontario can create or source custom windows for bay, bow, arched, or non-standard openings to ensure a proper fit and finish.

Can Thornhill, Ontario window contractors handle both residential and commercial projects?

Some window installation and replacement contractors in Thornhill, Ontario specialize in residential homes, while others also work on commercial buildings. Make sure your preferred Thornhill, Ontario window contractor has experience with the type of property you need serviced.

Can window contractors in Thornhill, Ontario replace or upgrade windows while I’m living in the home?

Some window contractors in Thornhill, Ontario can work efficiently without major disruption, while others may require rooms to be cleared or temporarily vacated. Clarify this before hiring.

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