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3 Best Window Companies in Thunder Bay, ON

Expert-recommended Top 3 Window Companies in Thunder Bay, ON. All of our window companies actually undergo a rigorous 50-Point Inspection, which includes everything from checking reviews, ratings, reputation, history, complaints, satisfaction, trust and price - all to ensure overall excellence. You deserve only the best!

Northern Window & Door Manufacturing Ltd. - Thunder Bay, ON Window Companies - Business Exterior Image
Northern Window & Door Manufacturing Ltd. - Thunder Bay, ON Window Companies - Installation Service Image
Northern Window & Door Manufacturing Ltd. - Thunder Bay, ON Window Companies - Service Image
Thunder Bay window company Northern Window & Door Manufacturing Ltd. video
9+ YEARS ON TBR
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NORTHERN WINDOW & DOOR MANUFACTURING LTD.

(4.9 Score)
408 Simpson Street,
Thunder Bay, ON P7C 3J2 Directions

Since 1995

Specialty:

✓Casement ✓Awning ✓Sliding ✓Hung ✓Tilt ✓Turn ✓Dual and Triple Pane Windows ✓Steel Entry ✓Storm ✓Patio Doors

"Northern Window & Door Manufacturing Ltd. is a family-owned and operated company with over 21 years of experience in the field. They pride themselves on designing and building high-quality windows for local clients at a reasonable price. Their windows are ENERGY STAR approved and rated for their climate extremes. They offer a 20-year warranty and complete service for all their windows. They specialize in custom vinyl windows serving both residential and light commercial clients. Northern Window & Door Manufacturing Ltd. offers steel and fibreglass doors with hundreds of glass design options. They also provide free in-home estimates. Northern Window & Door Manufacturing Ltd. has full-time and trained installers and manufactures the windows completely from raw stock to finished product.

2026 Highlights: Northern Window & Door Manufacturing Ltd. use PH TECH® in all of their windows to ensure premium performance and durability."

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Contact:

(807) 622-2880

Mon-Fri: 8:30am - 5pm
Sat & Sun: Closed

TBR® Inspection Report:

Exterior Finishing - Thunder Bay, ON Window Companies - Truck Image
Exterior Finishing - Thunder Bay, ON Window Companies - Outdoor Work Image
Exterior Finishing - Thunder Bay, ON Window Companies - Indoor Service Image
Thunder Bay window company Exterior Finishing video
3+ YEARS ON TBR
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EXTERIOR FINISHING

(4.9 Score)
882 Tungsten Street,
Thunder Bay, ON P7B 6J3 Directions

Since 1975

Specialty:

✓Windows Installation ✓Energy-efficient ✓Vinyl ✓Patio ✓Entrance Doors ✓Decks ✓Sunrooms and Additions ✓Siding ✓Eavestroughs ✓Soffit and Fascia

"Exterior Finishing takes immense pride in delivering exceptional customer service. They ensure that each project is handled with care, attention to detail, and a commitment to quality. The team specializes in installing siding, soffit, fascia, eavestroughs, windows, and doors. Their renovation division is also dedicated to decks, sunrooms, additions, and interior renovations. They are committed to reassuring their customers by collaborating with a reputable company that places a premium on customer service. At Exterior Finishing, they present distinctive lines of custom entrance doors, terrace doors, and garden doors, all tailored to meet your specific needs. They provide free estimates and a transferable lifetime warranty. They provide a 5-year labour warranty and coverage guarantee to their customers, helping them feel confident and trust them.

2026 Highlights: Exterior Finishing vinyl windows and patio doors are built to satisfy or to surpass industry standards."

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Contact:

(807) 623-1135

Mon-Fri: 9am - 5pm
Sat & Sun: Closed

TBR® Inspection Report:

SRS Windows and Doors Inc. - Thunder Bay, ON Window Companies - Service Image
SRS Windows and Doors Inc. - Thunder Bay, ON Window Companies - Outdoor Work Image
SRS Windows and Doors Inc. - Thunder Bay, ON Window Companies - Project Completion Image
Thunder Bay window company SRS Windows and Doors Inc. video
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SRS WINDOWS AND DOORS INC.

(4.8 Score)
665 Beaverhall Place,
Thunder Bay, ON P7E 3N1 Directions

Since 2008

Specialty:

✓Casement ✓Awning ✓Fixed ✓Hung ✓Sliding ✓Bay and Bow ✓Custom Shaped Windows ✓Steel ✓Fiberglass ✓Patio ✓Storm ✓Interior and Exterior Doors

"SRS Windows and Doors Inc. is dedicated to helping customers protect their investment in windows and doors. Tamara Sheedy is the founder of SRS Windows and Doors Inc., with more than 25 years of combined experience. Their professional team is committed to providing you with the knowledge, quality, and services you can depend on them without going over your budget. They offers a warranty on all the manufacturing products, along with installation that is available for both commercial and residential. SRS Windows and Doors Inc. assists homeowners in the quest for the perfect windows and doors for their residences.

2026 Highlights: SRS Windows and Doors Inc team of professionals are committed to giving you the knowledge, quality and service you can come to rely on at a price you can afford."

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License #833659733

Contact:

(807) 627-0055 (807) 630-5500

Mon-Fri: 8:30am - 4pm
Sat & Sun: Closed

TBR® Inspection Report:

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NORTHERN WINDOW & DOOR MANUFACTURING LTD. REVIEWS

I can't say enough good things about Northern Windows! From start to finish, they were true professionals. Not only did they handle the installation flawlessly, but they were also punctual, courteous, and left no mess behind. Our house underwent a remarkable transformation with the installation of 4 basement windows and 5 upstairs windows. The difference is night and day! What I appreciated most was their attention to detail and their willingness to walk us through the options, explaining how each window would enhance the look and functionality of our home. Their customer service was exceptional every step of the way. I strongly recommend Northern Windows for anyone looking to upgrade their home. 5/5 rating!.

We needed our back door replaced, and all the staff at Northern Window & Doors were welcoming and communicative. We needed custom door made, and the staff worked with us to provide options that suited our needs and budget. The workers who installed the door were also friendly and made an effort to ensure the final product looked nice, even adding extra trim pieces to match the rest of the room. It has been several months now, and everything has held up nicely. We would definitely recommend their services.

Locally owned with locally made windows .Staff is extremely helpful. Prices are excellent.

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EXTERIOR FINISHING REVIEWS

I just had Exterior Finishing replace the siding, facia, soffit, eves trough, main door and storm door on my house. I cannot say enough about Randy and his crews. They were very professional, talented and a pleasure to have at my property every day. Randy was up front about issues they came across and what it would cost to make it right. His crew members consulted me regularly when there was a choice to make. They showed up on time, worked a full day and cleaned up at the end of every day. I will definitely recommend Exterior Finishing to anyone who want work done on their home. Thank you Randy and all the guys who made my Renovations a pleasant experience.

I believe this company/ owner has shown to be the most honest , professional and their work is outstanding. The owner and his employees demonstrated a amazing work ethic that is rare today. I would never hesitate to recommend this company for any work. Excellent. Julie.

Amazing from start to finish. Needed a new front living room window, quick and efficient from the estimate, to ordering to install. Very professional, staff was very friendly and polite, Top quality install, clean and efficient. Very happy with the whole crew. Highly recommend for all your exterior needs.

SRS WINDOWS AND DOORS INC. REVIEWS

We needed to insulate and side our 100 yr old home. Called for estimates from 3 different companies and Tamara was the only one who showed up. She was running late for our appointment and she actually phoned to tell us she would be late! Now there's a first! Once the work started, their crew were professional and knowledgeable and worked their tails off. Sean would stop by often to make sure the work was being done properly. They did a great job and we are so happy with the results. We will recommend SRS Doors and Windows to everyone I know.

5 stars*****Sean and Tamara were excellent to work with, and the workmanship and professionalism was superb! I replaced all of my windows and 2 of my doors. I love how Tamara helped me achieve all of the custom work I was looking for--the results are exactly what I was looking for! I know my house was not an easy job but I felt at ease with the combination of Sean's expertise and Tamara's attention to detail. Thank you so much!!! Garage work to follow...:).

5 Star workmanship. We are and will continue to recommend SRS Windows & Doors to everyone We know. Nathen and Shane did a fantastic job, profession, dedicated and very precise. We consider Them Our New Friends..Thank You all so much and will be contacting You in the future.

TBR® Inspection Score Report

NORTHERN WINDOW & DOOR MANUFACTURING LTD. Total Inspection Points: 118/120
Acknowledgments: 9
Complete Info: 9
Business Hours: 10
Business Images: 10
Contact Info: 10
Exact Services: 10
Experience: 10
Legitimate Ratings: 10
Location Proximity: 10
Reviews Accuracy: 10
Website Source: 10
Website Standard: 10

TBR® Inspection Score Report

EXTERIOR FINISHING Total Inspection Points: 117/120
Acknowledgments: 9
Business Hours: 9
Complete Info: 9
Business Images: 10
Contact Info: 10
Exact Services: 10
Experience: 10
Legitimate Ratings: 10
Location Proximity: 10
Reviews Study: 10
Website Source: 10
Website Standard: 10

TBR® Inspection Score Report

SRS WINDOWS AND DOORS INC. Total Inspection Points: 114/120
Acknowledgments: 8
Complete Info: 8
Business Hours: 9
Experience: 9
Business Images: 10
Contact Info: 10
Exact Services: 10
Legitimate Ratings: 10
Location Proximity: 10
Responsiveness: 10
Website Source: 10
Website Standard: 10

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