How long does a typical door installation take?

Most residential door installations can be completed in a single day, depending on project complexity and site conditions.

Can a new door help lower energy bills?

Yes. Modern energy-efficient doors can help reduce air leakage and improve insulation, which may lower heating and cooling costs.

Do exterior doors require maintenance?

Maintenance requirements depend on the material selected. Fiberglass and steel typically require less maintenance than traditional wood doors.

Can I replace my patio door and front door at the same time?

Absolutely. Many homeowners choose to upgrade multiple entry points during the same project for consistency and improved efficiency.

Why is professional installation important?

Professional installation helps ensure proper fit, sealing, security, and long-term performance.

Where Old Town Character Homes Meet New Construction: Window Installation in Newmarket

Nearly six in ten homes in Newmarket are single-detached houses. Many date back to the town’s postwar and 1980s growth. At the same time, Davis Drive and Yonge Street are adding condos and townhomes that didn’t exist a generation ago.

Stone River Windows + Doors has installed windows across the GTA and Durham Region since 1988. Our window installation in Newmarket work covers both ends of that split, from original single-pane units in Old Town to new openings near Summerhill Estates.

We are an Andersen Circle of Excellence dealer and a major Dashwood dealer. Every installation carries a 5-year installation warranty and is backed by $5 million in liability insurance.

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Professional contractor installing a new energy-efficient vinyl window frame for a home in Newmarket ON by Stone River Contracting.

Why Newmarket Homeowners Choose Stone River

Newmarket sits a distance from our showrooms, so homeowners want to know a supplier can actually deliver on schedule. Stone River owns its own fleet of tractor-trailers, so windows move straight from our supply chain to the job site.

We offer single-source supply, installation, warranty, and service, so one company stands behind the whole project. Free consultations are available at either our Toronto Planning Studio or our Oshawa Showroom.

What’s Included in Window Installation

A consultation to assess your current windows and goals. Product selection from Andersen or Dashwood. Precise measurement of each opening. Removal and disposal of the old units. Professional installation and sealing. A final inspection before we call the job done.

Signs It’s Time for New Windows

Heating bills climbing every winter. Condensation trapped between the panes. Windows that stick or won’t stay latched. Noticeably more traffic noise from Davis Drive or Yonge Street coming through. Two or three of these together usually mean the window itself is the problem.

Authority and Trust in Newmarket

Over 38 Years, Canadian Owned and Operated.
Andersen Circle of Excellence and Major Dashwood Dealer.
$5 Million Liability Insurance and Current WSIB Coverage.
5-Year Installation Warranty and BBB Accreditation.

Frequently Asked Questions

Do I need a permit to replace windows in Newmarket?

No, if the new window is the same size as the existing opening. A permit is required if the opening is enlarged or relocated.

Can you install windows in older Old Town homes without changing their look?

Yes. We match the new product to the sightlines and profile of the original window.

What affects the cost of a window installation project?

The number of openings, size and style, product line, and whether the opening needs adjustment. A free consultation walks through these for your home.

How long does installation take?

Most residential projects finish within a day or two, depending on the number of windows.

Do you service windows after the warranty ends?

Yes. We offer post-warranty repair and maintenance service.

Which brands do you install in Newmarket?

Andersen, Dashwood, and Therma-Tru for entry and patio doors.

Schedule Your Window Installation Consultation

Whether your home is an Old Town original or a newer build near Davis Drive, browse our Windows page or explore our Premium Window Installations process. See the other communities we serve across York Region. To book a free consultation, contact Stone River Windows + Doors at 1.800.463.8078.

Book a Free Consultation

We are Canadian Owned and Operated Over 38 Years of experience in the window business. We can help you turn your ideas into great results.

Customer reviews

Highly Recommended

We are very pleased with our windows. The installation was carried out very professionally, and the crew did a thorough clean up each day they were here. We have recommended your firm to several friends and family members, and we are sure they will be equally satisfied.

E. Pilon

Customline Casements

We are very pleased with our new Customline casements you installed for us. Your installation crew was co-operative and pleasant. We would recommend you to our friends.

M. Kelly

Very Pleased

Just a note to let you know how pleased we are with the windows you have installed for us at our home and cottage. We look forward to doing business with you again, and have already recommended you to neighbours.

D. Moles

Dashwood Windows Installed

For the benefit of anyone who might read this letter, I wish to state it is an unsolicited, non-rewarding letter giving our appreciation of the job done by your people as seen by a Professional Engineer of 31 years who has administered over $2 billion in construction projects covering high quality homes.