Describe your job with details to view a tailored list of pros.
Post your job

Some of our top rated window contractors in Thornhill, Ontario

3130 Results

Sort by:

  • Window Contractor in Thornhill, Ontario

    We do caulking installation in new houses and renovation of interiors and exteriors.

    Get in touch
  • Window Contractor in Thornhill, Ontario

    Hello, my name is Dima and I have been working in the construction industry for many years. I mainly do plumbing, painting and electrical work, as well as other types of work. So contact me, I will be happy to help you at competitive prices, since I am just starting my journey as a self-employed person.

    Get in touch
  • Window Contractor in Thornhill, Ontario

    Saaze Building Group Renovation division is a renowned boutique contracting firm providing full-service construction management focusing on exceptional craftsmanship to bring outstanding renovation or new residential projects to life across the Toronto area. From concept to completion, we bring each client’s vision to life with precision, integrity, quality, and a commitment to true perfection.

    Get in touch
  • Window Contractor in Thornhill, Ontario

    Hi! My name is Serj. I’m a professional mason with over 10 years of experience in Canada. I do brick, stone, and block work. I work fast, clean, and with full responsibility. I have experience with both custom homes and commercial buildings. I always deliver high-quality work and meet deadlines. Looking for new projects and reliable partnerships. My focus is quality, reliability, and client satisfaction.

    Get in touch
  • Window Contractor in Thornhill, Ontario

    ZaRRuS Renovation & Outdoor Living is a professional renovation company serving Toronto and the GTA. We specialize in complete residential renovations, including kitchens, bathrooms, basements, condos, flooring, finish carpentry, custom cabinetry and millwork, feature walls, fireplaces, decks, pergolas, patio covers, outdoor kitchens, fences, gates, interlock and other outdoor living projects. We manage projects from start to finish, including planning, estimating, material coordination, scheduling, skilled trades, installation and final quality control. We focus on professional workmanship, clear communication, organization and attention to detail. We specialize in custom kitchens, custom cabinets, built-ins and millwork. From complete kitchen renovations to custom cabinetry, we coordinate fabrication, assembly and professional installation for a high-quality finished result. For larger projects, we coordinate experienced professionals across multiple trades and personally oversee the work to maintain quality and consistency. Our portfolio showcases selected projects completed throughout Toronto and the GTA. Search for ZaRRuS Renovation & Outdoor Living online to see our work and learn more about our services.

    Get in touch
  • Window Contractor in Thornhill, Ontario

    We offer reliable concrete work, expert painting, and thorough cleaning to keep your property looking its best. Our team focuses on quality, efficiency, and results you can count on.

    Get in touch
  • Window Contractor in Thornhill, Ontario

    DreamStone Tiling & Renovation is a North York based General contractor, Window Contractor, Kitchen Renovation Company, Handyman, Landscaping Company, Carpenter, Bathroom Renovation Company, Concrete Specialist, Garage Specialist, Condominium/Apartment Specialist, Interior decorator, HVAC contractor, Plumber, Tiler, Interior designer, Architect, Cabinet maker, Metal worker, Mason, Demolition company & Pool company company. Our goal is to provide quality service and excellent workmanship to our customers. If you need help with house renovation, install or renovate bathroom, install or renovate kitchen, build sunroom, extension, build garage, build or renovate basement, build pergola, gazebo or garden house, build carport, install or replace beam, install or repair lift/elevator, build shed, general contractor service, structural work for construction, build shelter or outbuilding, carpentry framing, install, repair or replace caulking & accessibility modifications, message us so we can assist you and arrange a quote.

    Get in touch
  • Window Contractor in Thornhill, Ontario

    Hey there we specialize in professional tree removal, tree pruning, hedge trimming, stump grinding, and emergency tree services. We focus on safety, reliability, and quality workmanship for both residential and commercial properties. Whether it’s hazardous tree removal, routine maintenance, or storm cleanup, we complete every job with care, efficiency, and attention to detail please feel free to reach out

    Get in touch
  • Window Contractor in Thornhill, Ontario

    We are a reliable and experienced construction company based in Toronto. We specialize in drywall, flooring installation, concrete work, paving, and general home renovations. We take pride in delivering clean, high-quality work with attention to detail. Whether it’s a small repair or a full project, we ensure professional results and fair pricing. We are available anytime and ready to take on your project.

    Get in touch
  • Window Contractor in Thornhill, Ontario

    We specialize in residential renovations with a focus on quality workmanship, durability, and clean finishing. From basement renovations and bathroom upgrades to flooring, drywall, framing, painting, and general remodeling — we handle projects with precision and care. We believe in: • Honest pricing • Clear communication • On-time completion • Clean and organized job sites Whether it’s a small repair or a full renovation, we treat every project like it’s our own home. Contact us today for a free estimate.

    Get in touch
    • Best of Awards 2026

    New Image Group Shutters & Blinds has been successfully supplying homeowners with custom window treatments since 1997. We supply Quality Products by well known manufacturers and pride ourselves on Great Costumer Service. We offer a FREE shop at home service and are happy to bring our business to you because Your Home Matters to Us. Our Products include Wood Shutters, Vinyl Shutter, Blinds, Shades, Verticals, Sunscreens , awnings , windows and door systems . Add a touch of Motorization to all blinds and shades for ease of operation.

    Get in touch
  • Window Contractor in Thornhill, Ontario

    Valdel Group – Elevating Spaces, Enhancing Lifestyles At Valdel Group, we specialize in transforming properties with our comprehensive range of services designed to meet all your home and business needs. From luxury renovations that breathe new life into interiors to landscaping solutions that enhance curb appeal, we bring expertise, precision, and craftsmanship to every project. Our services include: • Renovations & Remodeling – High-end home and commercial transformations, including kitchens, bathrooms, and full-scale remodels. • Landscaping & Outdoor Design – Custom outdoor solutions, from lush gardens to functional hardscapes. • Snow Removal & Seasonal Maintenance – Reliable winter services to keep your property safe and accessible. • And Much More! – We tailor our services to meet your unique needs, ensuring top-tier results every time. At Valdel Group, quality, efficiency, and customer satisfaction are our top priorities. Whether you’re upgrading your space, maintaining your property, or preparing for seasonal changes, we’re here to help. Let’s bring your vision to life—contact us today!

    Get in touch
  • Window Contractor in Thornhill, Ontario

    Welcome to PROper Roofs. Leaking roof? Let us fix it or deliver you a new one. Shingle | Cedar | Slate | Metal | Flat Roofs Also: Roof-Related carpentry (demolition of unwanted structures, plywood, etc.); Soffit & Fascia; Skylights and Sun Tunnels; Attic ventilation. Every roof installed PROper.

    Get in touch
  • Window Contractor in Thornhill, Ontario

    Talha is a North York based HVAC contractor, Plasterer, General contractor, Window Contractor, Flooring Contractor, Handyman, Landscaping Company, Carpenter, Mirrors & Glass specialist, Cabinet maker, Metal worker, Pool company, Stairmaker, Garage Specialist, Fences & Gates Specialist, Siding Specialist, Condominium/Apartment Specialist, Interior decorator, Mason, Cleaning company & Plumber company. Our goal is to provide quality service and excellent workmanship to our customers. If you need help with house renovation, install or replace window frames, repair windows, install or replace interior doors, install or replace exterior or reinforced doors, build sunroom, build garage, install fence, build pergola, gazebo or garden house, build carport, build furniture, trim and decorative moldings, build or replace decking, build porch, install or renovate stairs, repair or maintain stairs, repair or treat facade, repair or maintain fence, various small jobs, build shed, structural work for construction, install or replace whirlpool, spa and wellness, carpentry framing, exterior trim, install or repair acoustic ceiling tiles & accessibility modifications, message us so we can assist you and arrange a quote.

    Get in touch
  • Window Contractor in Thornhill, Ontario

    Here at Padilla’s Construction we specialize in Metal and Wood framing, Drywall installation, Taping/Painting, T-Bar Ceiling, ect. We provide quick clean and professional services to meet all your needs.

    Get in touch
  • Window Contractor in Thornhill, Ontario

    🏠 Your Trusted Window, Door & Sunroom Experts — Serving the GTA for 20+ Years Welcome to XF Window and Door Ltd., your local experts in windows, doors, porch enclosures, and custom sunrooms. Proudly serving homeowners across the Greater Toronto Area for over two decades, we’re known for our craftsmanship, reliability, and honest service. Whether you're upgrading for energy efficiency, enhancing your home's curb appeal, or creating a cozy all-season sunroom, we tailor every project to fit your needs — with quality materials and professional installation that lasts. ✅ Over 20 years of experience ✅ Fully licensed & insured ✅ Energy-efficient & durable products ✅ Clean, on-time installations ✅ Local references available ✅ Free estimates & fair pricing At XF Window and Door Ltd., we treat every home like our own. From the first consultation to the final inspection, your satisfaction is our top priority. 📍Proudly serving: Toronto, Mississauga, Brampton, Vaughan, Markham, Scarborough, Oakville, and beyond. Let’s build something great together.

    Get in touch

4.9

Top rated Window Contractors

Our Window Contractors in Thornhill, Ontario, are rated 4.9 out of 5 based on 553 reviews from homeowners like you.

Quality screening

Easily find verified local pros. Just post your job to get quotes from pros near you across Canada.

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.

Other pros in Thornhill, Ontario

Cities