Double slider windows are a practical choice when you want a clean horizontal look plus flexible ventilation. Unlike a single slider window (where one side is fixed), a double slider has two operable sashes—so you can open the left side, the right side, or adjust airflow based on comfort.
Omega Universal provides double slider window replacement and double slider window installation with a focus on clean finishing, tight sealing, and reliable long-term performance. To get started, Call: +1 416 663-7070 or Request an Estimate (Contact page).
What is a double slider window?
A double slider window is a horizontal sliding window where both sashes slide along the track. This gives you more control over ventilation compared with single slider designs.
Best for
- Rooms where you want adjustable ventilation from either side of the window.
- Wider openings where a horizontal layout looks clean and balanced.
- Spaces where you don’t want a window swinging inward or outward (walkways, patios, furniture placement).
Key benefits of double slider windows
- Flexible airflow control because both sashes are operable.
- Clean, modern horizontal appearance with a wide viewing area.
- Smooth everyday use when tracks, rollers, and sealing are installed correctly.
- A strong “value + function” option for many homes.
Double slider vs. single slider (quick note)
Single slider windows typically have one operable sash and one fixed sash. Double sliders allow both sashes to move, which usually means more ventilation options and more flexibility in how you open the window.
Common reasons homeowners replace old slider windows
- Drafts around the frame or noticeable cold spots in winter.
- Hard-to-slide operation from worn tracks/rollers or alignment issues.
- Fogging between panes (often linked to insulated glass seal failure).
- Water intrusion or staining near the sill/trim from older sealing or installation details.
Our installation approach
A slider window depends heavily on correct installation details: measurement, alignment, sealing, and tidy finishing. Omega Universal focuses on clean removal, proper sealing/insulation, and a neat final look so your window operates smoothly and performs reliably.
To review workmanship and finishing details, see View our projects.
Renovation benefits
If you’re planning broader exterior improvements, see Renovation benefits for practical reasons homeowners renovate and what to expect from the process.
Serving Barrie and nearby areas
Omega Universal serves Barrie, ON and nearby communities. For the full list of locations we serve, visit Service Areas.
Frequently Asked Questions (Double Slider Windows)
1) Can you open both sides on a double slider window?
Yes—double slider windows are designed with two operable sashes, so you can open the left side, the right side, or adjust airflow depending on the configuration and comfort.
2) Are double slider windows good for ventilation?
They’re often chosen specifically for ventilation flexibility, because both sashes can slide and you can choose how to direct airflow.
3) Why is my sliding window hard to open or sticking?
Common causes include track/roller wear, dirt build-up, or alignment issues. An on-site assessment helps determine whether adjustment, component repair, or replacement is the best option.
4) What causes fogging between panes?
Fogging between panes often indicates a seal issue in the insulated glass unit. An estimate visit can help confirm whether glass-only work is possible or if replacement is a better solution.
5) Do double slider windows come with screens?
Many slider configurations can include screens, depending on the setup and preferences. This can be confirmed during consultation.