
Alside Replacement Windows
Window Replacement Services in Forest Hills, MI
Lopez X Construction provides window replacement services in Forest Hills, Grand Rapids, Cascade, Lowell and Alto. We install Alside vinyl windows custom-built to each opening, in any style and color, and most homes are done in one day.
"Amazing work! Efficient, neatly done, very professional. Would definitely recommend."

Custom Window Installation in Forest Hills and Grand Rapids
Lopez X Construction measures every window opening to 1/16 of an inch. Alside builds each window to those measurements, so it fits the opening without new trim or drywall. That fit is how we replaced 8 windows at a Grand Rapids home in one day, and how our crew installs 10 to 15 windows in a day.
Pocket Replacement
Most of the time, the existing frame stays in place and the new window goes into it. This is called pocket replacement. Your interior trim, drywall and exterior siding usually stay untouched.
Full-Frame Replacement
When a frame is rotted, or you want new trim, we remove the whole window and install a new frame. Full-frame replacement takes longer and includes new trim. We install new base and casing so you don't need a separate trim carpenter.
Colors, Paint and Hardware
Our windows come in any color, with interior and exterior paint options. Lock and hardware finishes include white, black, silver and bronze. Bronze or silver hardware pairs well with a woodgrain interior.
Window Styles We Install
We install double hung, double slider and end vent slider windows. We also install casement, awning, hopper, bay and bow, and picture windows. Specialty shapes include circle tops, round tops, transoms, triangles, octagons and circles.


Three Grades of Vinyl Replacement Windows
Every window we install is vinyl. Within vinyl there are three grades, and Omar shows you each one at your estimate.
Builder Grade
Builder grade is the entry-level vinyl window and the lowest price of the three grades.
Alside Mezzo
Alside Mezzo has a narrow frame that lets in more light. It meets Energy Star requirements, and a triple-pane glass option is available. Mezzo is a step above the windows sold at big-box stores.
Alside Sovereign
Alside Sovereign is our best line. The sash and frame are fusion-welded and foam-filled, and the glass uses a warm-edge spacer. The triple-pane ClimaTech PriME glass meets Energy Star Most Efficient requirements, which makes Sovereign our top pick for energy efficient window replacement.
Custom-Fit Windows vs Tear-Out Installs
Lopez X Construction measures every opening to 1/16 of an inch, and the manufacturer builds each window and door to fit it. Most of the time the existing frame stays in place. This is called pocket replacement.
A tear-out install removes the window down to the studs to fit a standard size. That means new framing, drywall patching, new trim and paint, and sometimes siding repair. Each of those adds cost, adds another trade to schedule, and keeps your house torn up for days or weeks.
Framing
Custom-Built to Your Opening, Lopez X
Existing frame stays in most homes
Standard-Size or Tear-Out Install
Opening reframed to fit a standard size
Drywall
Custom-Built to Your Opening, Lopez X
Untouched 9 times out of 10
Standard-Size or Tear-Out Install
Patched around each window
Interior trim
Custom-Built to Your Opening, Lopez X
Stays in place
Standard-Size or Tear-Out Install
Removed and replaced
Paint
Custom-Built to Your Opening, Lopez X
None needed
Standard-Size or Tear-Out Install
Trim and walls repainted
Siding or stucco
Custom-Built to Your Opening, Lopez X
Untouched
Standard-Size or Tear-Out Install
Often removed and patched
Extra trades
Custom-Built to Your Opening, Lopez X
None in most homes
Standard-Size or Tear-Out Install
Drywall, paint and siding crews
Install time
Custom-Built to Your Opening, Lopez X
10 to 15 windows in one day
Standard-Size or Tear-Out Install
Days to weeks
Your home during the job
Custom-Built to Your Opening, Lopez X
Back to normal the same day
Standard-Size or Tear-Out Install
Torn up until every trade finishes
Added cost
Custom-Built to Your Opening, Lopez X
No added trade costs
Standard-Size or Tear-Out Install
Each trade adds to the bill
Full-frame replacement is still available when a frame is rotted or you want new trim.
Signs You Need Window Replacement Services
These are the signs Omar looks for at every window inspection in Forest Hills and Grand Rapids.
Fog Between the Panes
Fog or condensation between the glass means the seal has failed and the insulating gas has leaked out.
Hard To Open or Close
A window that sticks, won't lock or won't open at all needs replacing.
Sashes That Drop
Older windows can fall and slam the opening shut when you open them.
Drafts Through the Frame
You feel cold air coming through the window frame.
Leaks and Wet Drywall
A known leak or a wet spot on the drywall under a window means replace it soon.
Rot or Warping
Rotted wood or a warped frame stops the window from sealing.
A replacement window installer can confirm whether a window needs replacing. Omar checks each window at the estimate and tells you which ones can wait.
How Long Windows Last in Michigan
The windows we replace most are original wood windows and builder-grade vinyl windows that have worn out.
Original Wood Windows
Wood windows last about 20 to 30 years when they are scraped, primed and painted every 5 to 7 years. Once the paint fails, water gets into the wood and it rots.
Builder-Grade Vinyl
Builder-grade vinyl windows last about 15 to 25 years. A home built 30 years ago often still has its original builder-grade vinyl, and those windows are due now. The seals fail first and the glass fogs.
What Michigan Weather Does to Windows
Vinyl expands and contracts with every temperature swing, and that movement wears out the seals. Low-grade vinyl gets brittle in deep cold. Snow sitting on sills keeps the frames wet longer than rain does.
Why Hire Lopez X Construction for Window Replacement Services in Forest Hills
Lopez X Construction is one of the window installation contractors in the Grand Rapids area that measures and builds every window to its opening. Omar has run the company since 2019, and our installers are OSI Certified for window sealing.
OSI Certified Sealing
Our installers are certified to seal windows against water and weather.
Insured
Lopez X Construction carries insurance on every job.
One-Day Installs
Our crew installs 10 to 15 windows in one day.
Labor in the Warranty
The lifetime warranty covers our labor, along with the glass, screens and hardware.
A Sample at Every Estimate
Omar brings a sample window you can touch and test.
Window Replacement Services in Forest Hills, Grand Rapids and Lowell
Lopez X Construction replaces windows in Forest Hills, Grand Rapids, Cascade, Lowell, Alto, Rockford, Caledonia and Holland, and at homes within 50 miles of Forest Hills.
- Forest Hills
- Grand Rapids
- Cascade
- Lowell
- Alto
- Rockford
- Caledonia
- Holland
About Lopez X Construction
Omar Lopez started Lopez X Construction in Forest Hills in 2019. Our installers are OSI Certified to seal windows and doors against water and weather.
Lifetime Warranty and Financing
Lifetime Warranty and 0% Financing Options
Every window and door we install carries a lifetime warranty backed by the manufacturer, and our labor is included. Financing through Hearth includes 0% options for qualified buyers, and you can check your options without a hard credit pull.
Book Your Window Replacement Estimate
Call or text 616-258-6370 or send the form, and Omar will set up a free in-home estimate.
Frequently Asked Questions
How is a custom-fit window different from a tear-out install?
A custom-fit window is built to your existing opening, so your trim, drywall, paint and siding usually stay untouched. A tear-out install removes the window down to the framing, which often means new trim, drywall patching, paint and extra days. See our full comparison on the financing and warranty page.
How many windows can you replace in one day?
Our crew installs 10 to 15 windows in one day. Every window is built to its opening, so it goes in without trim or drywall work. We replaced 8 Alside windows at a Grand Rapids home in a single day.
Do you replace the window frame?
Most of the time the existing frame stays and the new window goes into it. When a frame is rotted, or you want new trim, we do a full-frame replacement instead. Omar tells you which one each window needs.
Which window grades do you offer?
We offer three grades of vinyl windows: builder grade, Alside Mezzo and Alside Sovereign. Sovereign is our best line, with fusion-welded frames and a triple-pane glass option.
Can I pick a color?
Yes. Our windows come in any color, with interior and exterior paint options. Hardware comes in white, black, silver or bronze.
Does the warranty cover broken glass?
Yes. If a golf ball or baseball goes through the glass, we file the warranty claim and the glass pack is replaced for free. Locks and screens are repaired for free too.
How long do vinyl windows last?
Builder-grade vinyl windows usually last about 15 to 25 years before the seals fail. Better vinyl windows like Alside Mezzo and Sovereign are built with stronger frames and seals and carry a lifetime warranty.


