Sunrooms - The Mester

Choose Your Sunroom

Two Types. One Trusted Builder.

Every Mester sunroom is custom-fabricated from premium aluminium and glass — measured on site and built to last. Choose the type that fits your lifestyle.

All Season

Year-Round Living

All Season Sunroom

Fully enclosed and thermally engineered for use in every season — including Ontario winters. Our All Season Sunrooms feature built-in heating systems and double-panel insulated glass windows that keep you warm in January and cool in July.

Built-In Heating System Integrated heating keeps the space comfortable through the coldest Ontario months.

Double Panel Insulated Windows Thermally broken double-glazed panels eliminate drafts, reduce energy loss and prevent condensation.

True Living Space Addition Use it as a dining room, home office, lounge or extra living space — every single day of the year.

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Spring, Summer & Fall

Three Season Sunroom

A versatile enclosed space that extends your outdoor living from spring through fall. Three Season Sunrooms are screened and glass-panelled enclosures — perfect for protecting your hot tub, creating a dedicated garden room, or building a relaxing sitting area that stays comfortable through the warmer seasons.

Outdoor Hot Tub Enclosure Enclose your hot tub — protected from wind, bugs and debris while staying open and ventilated. A top choice among our clients.

Gardening Room A glass-panelled garden room extends your growing season and keeps your plants protected from the elements.

Relaxed Sitting Area Fresh air and natural light in a comfortable enclosed porch — without bugs, wind or unexpected rain showers.

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Three Season

Quick Comparison

Which Type is Right for You?

Feature	All Season	Three Season
Usable Months	Year-round (12 months)	Spring – Fall (8–9 months)
Heating Included	✓ Yes	— Not included
Window Type	Double panel insulated	Single panel / screened
Popular Uses	Home office, dining, living room	Hot tub, gardening, sitting area
Full Weather Seal	✓ Yes — all seasons	✓ Wind, bug & rain proof
Investment Level	Higher	More accessible

Custom Sunrooms

Two Types. One Trusted Builder.

All Season Sunroom

Three Season Sunroom

Which Type is Right for You?

Ready to Add a Sunroom to Your Home?