Entry Doors in Newmarket, Ontario
Fiberglass and steel entry doors built for Newmarket's winters, installed by our own certified team.
A front door does two jobs at once in a Newmarket home: it's the first thing a visitor sees, and it's the seal standing between your front hallway and a January wind chill that regularly drops below -15°C. Trust Build installs fiberglass and steel entry doors engineered for exactly that combination, with an installation process that accounts for whether your property falls inside Newmarket's heritage district or not.
Replacing a Door on Lower Main Street South? Here's What Changes
Newmarket's Lower Main Street South Heritage Conservation District — 72 properties designated under Part V of the Ontario Heritage Act — treats exterior door replacement differently than the rest of town. Any visible change to a designated property's exterior, including a front door swap, requires a heritage permit from the Town's Planning Department before work starts, and the replacement generally needs to be sensitive to the building's original character rather than a standard off-the-shelf install. If your property is inside this district, we build the permit timeline into your project schedule up front rather than discovering it partway through.
Fiberglass vs. Steel: What the Materials Actually Differ On
| Feature | Fiberglass | Steel |
|---|---|---|
| Skin construction | Glass-fibre-reinforced composite, embossed wood-grain texture | 24-gauge galvanized steel skin over a wood lock block |
| Dent resistance | Very high | Good, can dent under direct impact |
| Wood-grain finish options | Extensive — suited to heritage-sensitive replacements | Limited, mostly smooth finishes |
| Insulation core | High-density polyurethane foam standard | Foam-core available, generally thinner core than fiberglass |
| Typical use | Front/entry doors, character and heritage-district homes | Side/garage-adjacent entries, budget-conscious projects |
What's Included
- ENERGY STAR® certified door units suited to Ontario's climate zone
- In-house installation — no subcontracted crews
- 0% interest financing options available
Financing and Rebates
Newmarket homeowners bundling an entry door replacement with other qualifying upgrades may qualify for Home Renovation Savings™ support of up to $100 per rough opening, assessment stream, when a home energy assessment is completed beforehand. 0% interest financing is also available for homeowners who prefer to spread the cost.
Frequently Asked Questions
Do you install both fiberglass and steel doors in Newmarket? Yes, both fiberglass and steel entry doors are installed by our in-house team, matched to your home's style and budget.
How quickly can an entry door be installed? Most single entry door replacements are completed in a single day, outside of any heritage permit approval timeline.
Do I need a permit to replace my front door on Lower Main Street South? If your property is designated within the Lower Main Street South Heritage Conservation District, a heritage permit from the Town of Newmarket's Planning Department is required before an exterior door replacement, and the new door generally needs to match the building's historic character.
Ready to see options for your Newmarket home? Get a free quote here. Also replacing windows? See our Newmarket casement windows page, check which upgrades qualify for rebate-qualifying window installation in Newmarket, browse completed projects in our portfolio, or read about how window performance shows up through a Newmarket winter.