Made in Canada

Call Us

Made in Canada

4.7/5 HomeStars Rating

300K+ Happy Customers

45+ Years in Business

Non-Prorated Lifetime Warranty

ENERGY STAR Certified Products

Tim Mohr

Our local representative has been serving Trenton and surrounding areas for many years!

1-844-738-7936

Our Local Clera Branch Serves Trenton

As the manufacturers and installers of all our windows and doors, we stand behind our work.

Plus Get $600 per Window in Free Upgrades

With our wide range of ENERGY STAR products, you can be sure to save big on your next dream project!

Instant FREE Upgrade to Brilliance Line

Don’t pay for 18 months from Installation Date

Low Monthly Payments Available

Thank you! Your submission has been received!

Oops! Something went wrong while submitting the form.

Schedule a Free Consultation

Get a Free Quote

Hung Window, Gallery Image - Clera Windows + Doors

Single & Double Hung Windows

Easy-clean tilt function – Easily clean exterior glass from inside your home
Space-saving design – Perfect for narrower lots and condo spaces‍
Ultimate ventilation control – Adjust top, bottom, or both sashes to direct airflow

Shop Windows

Awning Windows

Superior weather seals – Triple-sealing system creates airtight weather barrier
Rain-or-shine ventilation – Top-hinged and opens outward to let air in, not water‍
Break-in resistant – Harder to force open thanks to secure multi-point locking

Shop Windows

End Vent Slider Windows

Unobstructed city views – Slim frames and large glass panels maximize glass area
Dual sliding sashes – Enjoy fresh air from both ends of the window‍
Effortless operation – Smooth rollers allow for seamless opening and closing

Shop Windows

Double & Single Slider Windows

Horizontal sliding – No swing-out clearance needed
Lift out sashes – Easily lift out panels for quick, hassle-free cleaning‍
Sleek design – Clean lines and a minimalist frame for a modern look

Shop Windows

Speciality Shaped Window, Gallery Image - Clera Windows + Doors

Specialty Windows

Custom shapes & sizes – Match door and window style to your home’s aesthetic
Light without limits – Brighten hard-to-fit spaces with precision-crafted glass‍
Energy-efficient materials – Tailor-made for insulation and UV protection

Shop Windows

Bay & Bow Windows

Dramatic visual impact – Create depth and dimension to any space
Extended interior space – Add a cozy nook or built-in bench
Panoramic light & views – Let the outside in with multi-panel layout

Shop Windows

Fixed or Picture Windows

Maintenance-free – No moving parts means no fuss, no wear
Zero energy leaks – Keep drafts and energy bills down‍
Frameless views – Large glass area for scenic backdrops and natural light

Shop Windows

Casement Windows

Maximum airflow – Hinged on the side and opens outward for full ventilation
Tight-locking design – Multi-point locking system keeps out drafts and intruders‍
Sleek crank handle – Easy to open in kitchens or behind furniture

Shop Windows

Get a Free Quote

Steel Entry Doors

Reinforced steel construction – Built for strength, durability, and top-tier protection
Smooth, low-maintenance finish – Resists rust, dents, and wear
‍Energy smart – Foam-insulated core helps keep your heating bill in check

Shop Doors

Designing Your Fiberglass Door - Clera Windows And Doors

Fiberglass Doors

Environmentally friendly – Get the look of wood without harming the environment
Built for Canadian weather – Stands up to moisture, dents, and daily wear ‍
Superior insulation – Keep your home cozy no matter the weather

Shop Doors

Sliding Patio Doors & Garden Doors

Unlock natural light – Expansive glass panels brighten your space beautifully
Smooth-gliding operation – Glides open with ease and locks up tight‍
Extend your indoor living outside – Effortlessly blend your home with your patio or garden

Shop Doors

Storm Doors

Enhanced weather protection – Shield your entryway from rain, snow, and wind
Customization – Available in clear, ventilated, and decorative glass options‍
Secure ventilation – Keep insects out and fresh air in

Shop Doors

Hear What Clera
Customers Have to Say

With some of the highest ratings for customer satisfaction, it's clear why Clera is Ontario's most awarded window company!

9.2/10

on HomeStars

16x Homestars Winner

“I have nothing but good things to say about the services I have received from Clera. About 4 years ago I purchased a new front door from Clera. The salesperson was knowledgeable and understood what I was looking for...

Tammy Yazbeck

Muskoka

"Excellent! We have loved our dealings with Clera. Rod was amazing in listening and understanding the look we were trying to achieve and then suggesting products with the appropriate features...

Eric Tang

Ottawa

“We have received so many compliments on our doors. Mike and his crew (Mike and Anthony) are very friendly and professional...

Maria Novielli

Ontario

"We changed practically all the windows of our home and a sliding door and can't be more happy with the result.."

Roxalía Muñoz

Concord

"Both our sales rep, Greg, and installation team were courteous, skilled and acted professionally during the whole process. Will use Clera again for any future projects..."

Step 1

Step 2

Step 3

Step 4

Step 5

Schedule a Free Consultation

Frequently Asked Questions

Replacement Window & Doors Installation Trenton

Name: Windows and Doors
Brand: Clera Windows + Doors
Rating: 4.6 (652 reviews)

Call Us

Replacement Window & Doors Installation Trenton

Tim Mohr

Our local representative has been serving Trenton and surrounding areas for many years!

1-844-738-7936

Our Local Clera Branch Serves Trenton

As the manufacturers and installers of all our windows and doors, we stand behind our work.

Tim Mohr

Our local representative has been serving Trenton and surrounding areas for many years!

1-844-738-7936

Our Local Clera Branch Serves Trenton

As the manufacturers and installers of all our windows and doors, we stand behind our work.

Clera Windows + Doors

Trenton‍

Toll Free: 1-844-738-7936
Phone: 1-844-738-7936
Fax: 905-738-0586

Sales: sales@clerawindows.com
Service: service@clerawindows.com

Clera Windows + Doors

Toll Free: 1-905-738-1870
Phone: 1-905-738-1870
Fax: 905-738-0586

Sales: sales@clerawindows.com
Service: service@clerawindows.com

Get a Quote

Best Windows And Doors - Clera Windows + Doors

Clera Windows and Doors is proud to be offering our window and door installation and repair services to the residents of Trenton, Ontario. Trenton is part of the Quinte West municipality just east of Belleville and is home to around 20,000 people.

Trenton is located at a key point at the mouth of the Trent River along the Trent-Severn Waterway where Lake Huron drains into Lake Ontario. The Royal Canadian Airforce has a base in Trenton and is the community’s number one employer. Trenton also hosts the National Airforce Museum as one of its primary attractions.

Besides the military, Trenton is located on the Lake Ontario Waterfront Trail and is within a short drive of several nature preserves. While residents of Trenton may appreciate the beauty of nature, they also understand that it is meant to be kept outside and that the best way to do that is with high quality windows and doors.

Customized Windows & Doors In Alliston - Clera Windows + Doors

Invest In Your Home Today - Clera Windows + Doors

Meet The Team At Clera Windows + Doors Belleville, Trenton, & Prince Edward County

Video Transcript

Hi. My name is Ken Chaston. I’m here today with Clera Windows + Doors. I’ve been with the company for about nine (9) years now. I serve as district rep for the Belleville, Trenton, Prince Edward, and Hastings County.

I like being with Clera Windows + Doors. I’ve been here, like I said, for about nine (9) years now. It’s a family-owned organization. A Canadian manufacturer. They treat you really well here. They have one of the best warranty services in Canada. They’re a 100 percent, no-nonsense warranty. They serve quality products. It’s pretty easy to work with them. It’s a really good place to be.

I really enjoy being part of the Clera Windows + Doors team because we offer our customers a thorough home estimate at no cost. We support our customers in a way that makes the job easy.

Thank you for considering Clera Windows + Doors and I hope to hear from you soon.

‍

Why Choose Clera

Why take a chance with other window or door companies that purchase their products from another supplier, only to resell them to you for a higher cost?

Clera Windows + Doors is one of Canada’s largest, oldest, most dependable and reputable vinyl window manufacturers in Ontario. We fully manage and take care of your door and window replacement project from start to finish, ensuring every stage of your window or door project meets our lofty standards of craftsmanship.

Why are we Ontario’s most awarded window and door company?

Schedule a Free Consultation

Learn More

Over 45 Years of Experience

With over 45 years of experience, we have earned a reputation as one of Canada's leading window and door manufacturers and installers.

Certified Technicians

You can trust our team of factory trained technicians to install your new windows perfectly—our A+ BBB rating is no accident!

Serving Ontario With over 40 Branches

We have over 40 branches across Ontario, which means that we're always close by when you need us.

Non-prorated Lifetime Warranty

Whenever anything goes wrong with your windows, we'll take care of it for you—no questions asked.

ENERGY STAR® Certified

Our hung windows meet Canada's strict energy-efficiency standards. A window from Clera is not only high-quality and durable, but also energy-efficient.

Reasons to Love
our Products

Clera Windows + Doors is a reputable vinyl window manufacturer in Ontario with a history of dependable and high-quality products. Our superior materials and cutting-edge technology ensure durability, energy efficiency, and style. We offer customizable styles and colors, as well as superior security features and noise reduction technology to provide the best possible product attributes for your home.
‍
Our team manages every stage of your replacement project, from start to finish. We work closely with you to understand your specific needs and preferences, and use our extensive experience and knowledge to deliver a solution that exceeds your expectations. Trust Clera Windows + Doors for exceptional service and expertise for your home renovation needs.

Energy Star Approved

Modern, Contemporary Design with more glass, and less frame

Better home security

A quieter home; improved noise reduction from the outdoors

No maintenance: vinyl windows are virtually maintenance-free

Pilkington Low-E Glass Technology, engineered specifically for Canadian climates

Wet-glazed frames and sashes on all windows; the ultimate in protection against water and wind infiltration, with added structural integrity

Triple-fin weatherstripping with built-in anti-microbial properties, meaning no mould and better air quality

100% pure virgin UPVC, providing protection from fading

Stronger hardware and structural integrity thanks to integrating galvanized steel (allows for larger, more spectacular views!)

Hear What Clera
Customers Have to Say

With some of the highest ratings for customer satisfaction, it's clear why Clera is Ontario's most awarded window company!

9.2/10

on HomeStars

16x Homestars Winner

Tammy Yazbeck

Muskoka

"Excellent! We have loved our dealings with Clera. Rod was amazing in listening and understanding the look we were trying to achieve and then suggesting products with the appropriate features...

Eric Tang

Ottawa

“We have received so many compliments on our doors. Mike and his crew (Mike and Anthony) are very friendly and professional...

Maria Novielli

Ontario

"We changed practically all the windows of our home and a sliding door and can't be more happy with the result.."

Roxalía Muñoz

Concord

"Both our sales rep, Greg, and installation team were courteous, skilled and acted professionally during the whole process. Will use Clera again for any future projects..."

Greg Buczynski

Concord

Clera Windows and Doors is your go to destination for all of your window and door repair or installation services in Trenton, Ontario. We are a family run business since 1978 so we appreciate how important a project with us is to your own family. All of our technicians meet standards set by the Canadian Standards Bureau so you can trust our level of workmanship on each and every one of our installations.

We also offer ENERGYSTAR certified products so you know you will not only be helping reduce greenhouse emissions by properly insulating your house, but you’ll also be saving on your power bill in the winter. Our hard work and dedication to service has also led us to win the coveted “Homestar Top Choice” award. With accolades such as this, it’s no wonder we’re willing to offer you a comprehensive lifetime factory warranty from our manufacturer here in Vaughan, Ontario on all of our products.

Window & Door Assemblers - Clera Windows + Doors

Best Vinyl‍ End Vent Slider Windows - Clera Windows + Doors

Clera Windows and Doors makes the renovation process as easy as possible. If you’re looking to replace your windows, simply choose your style from our maintenance free vinyl windows, then pick your glass type and colour, and we’ll handle the installation from there. Selecting a new door is even easier with our online design centre. Just upload a photo of your entrance so we can determine the configuration of your door, then select a style and a glass design, as well as any finishing touches you might need.

If you’re in need of a window or door replacement or renovation, call Clera Windows and Doors today at 1-844-738-7936 for your free, no obligation estimate or visit our head office in Concord by following these directions below:

Head southwest on Dundas St. W/County Rd 2
Turn right onto County Rd 40 and continue north for 3.4 km
Merge onto the ON-40 heading west toward Toronto
Continue on the ON-401 W for approximately 6.9 km
Keep left at the fork and continue on the ON-401 Express towards Toronto
Use the right lane to exit at the ON-400 toward Barrie, Ontario
Merge onto the ON-400 and continue north for approximately 8.1 km
Take the exit towards Hwy 7/Langstaff Rd
Turn right onto Hwy 7/Langstaff Rd and continue for approximately 1.0 km
Turn left onto Jane St/York Regional Rd 55 and head north for approximately 1.0 km
Turn left onto Pennsylvania Ave and your destination will be on your left