Bright living room with tall white Mezzo double hung windows

Alside Mezzo Windows

Mezzo windows in Las Vegas

Alside's premium vinyl window, with slim frames, more glass and hardware built to last. We install Mezzo sliding, single hung, double hung and picture windows across the Las Vegas valley.

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Cutaway of the Mezzo Gatekeeper sill interlock from the Alside video

Inside an Alside Mezzo windowVideo by Alside, the maker of the windows we install

Watch first

See how a Mezzo window is built

This short video from Alside walks through the frame, the locks and the sill, one piece at a time. They are the same features we point out at your estimate.

Narrow frames that leave more room for glass
A sill that sheds water and locks the sash in place
Locks that show when a window is left unlocked

Cover of the Alside Mezzo windows brochure

Open the Mezzo brochurePDF · 18 pages

Seven features you can point to

Each Mezzo feature has a name, because each one does a specific job. Here is what they are and why they matter in a desert home.

Close up of a slim white beveled Mezzo frame corner

EdgeForce narrowline frame

A slim, beveled frame and sash leave more room for glass, so you get more daylight and a bigger view. Chambers inside the frame add strength and insulation.

Cutaway of a window meeting rail with composite reinforcement inside

CoreFX reinforcement

Composite reinforcement in the meeting rails slows heat moving through the frame and gives the locks a solid mount. Large double hungs get steel reinforcement instead.

Mezzo cam lock hardware shown in a 3D cutaway

Defense-Tek locks

Low profile locks with a cam action pull the sashes tight as they close, and an indicator shows when a window has been left unlocked.

Window sill shown in 3D with water running down its slope

Forecaster sloped sill

The sill slopes down to shed water, with the weep holes hidden in the corners instead of across the front, so it looks clean too.

Corner of a white window frame showing the telescoping sill

HP3 telescoping sill

A sill dam that fits into the side rails for a finished look, with added protection from air and water and extra stiffness in the frame.

Cutaway of the Gatekeeper sash to sill interlock

Gatekeeper interlock

As the bottom sash closes it locks into the sill, so strong wind cannot bow it. With three layers of weatherstripping, it keeps air and water out.

Corner of a window screen frame with its compression bulb seal

Ocular screen seal

A bulb seal makes full screens easy to put in and take out, and the snug fit closes the gap that lets light and insects slip past.

Everyday details

What you notice after install day

Woman cleaning the outside glass of a double hung window tilted into the room — **Clean from inside**Double hung sashes tilt in, so the outside glass gets cleaned without a ladder. Vent stops let you leave a window open a little at night.

Window coil balancer part shown beside its mounting bracket — **Smooth and quiet**Coil balancers let the sash glide quietly and hold it where you leave it.

Close up of a white sliding window sash running in its track — **Brass rollers**Mezzo sliders roll on solid brass rollers rather than plastic ones that can wear and crack.

Extruded aluminum screen frame beside a thinner roll formed screen frame — **Sturdier screens**Screen frames are extruded aluminum, much stiffer than the thin roll formed frames many windows ship with.

Frames and glass

Built for retrofit and for the heat

Mezzo frames are fusion welded at every corner, with airtight chambers inside. A block frame is standard, and nail fin and stucco fin frames suit retrofit jobs in valley stucco. Foam filled frames add insulation and quiet.

Cutaway of a Mezzo double hung window showing the frame chambers — Double hung, cut away

Three window frame profiles: nail on, block frame and retrofit frame — Nail on, block and retrofit frames

Window frame corner with a foam insulation wrap — Foam wrapped frame option

Diagram of a triple pane glass unit with argon gas, Low-E glass and a foam spacer

Diagram of Low-E glass keeping heat in during winter and blocking sun heat in summer

Glass that does the heavy lifting

Every Mezzo window has double strength glass on both panes and a ClimaTech Low-E package. Low-E reflects sun heat in summer, keeps warmth in during winter and cuts the UV that fades floors and furniture. A 1 inch triple pane option adds a third pane and a second gas space for even less heat and noise.