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North America · Window Manufacturer

MI Windows and Doors

🇺🇸 USA · Last reviewed by Justin Orloff

Quick Facts

founded

Est. mid-20th century

hq

Gratz, Pennsylvania

primaryMaterials

Vinyl (uPVC) and aluminium

glazingPartner

In-house and third-party glazing

marketTier

Entry to Mid-Range (new construction focus)

Brand at a Glance

  • Country: USA
  • Headquarters: Gratz, Pennsylvania
  • Market focus: New construction residential - major home builder supply chain
  • Materials: Vinyl and aluminium
  • Geographic strength: Eastern and central United States
  • Climate context: Mid-Atlantic and Midwest new construction - four-season US climates

Product Range

  • Residential vinyl windows
  • Aluminium windows
  • Patio doors

Why This System

MIWD's strength is new construction supply at scale. Products are specified by home builders for consistent performance across large developments. This means uniform product across a development but also means specifications optimised for cost-effectiveness rather than premium performance. Entry-level to mid-range hardware on MIWD products is reliable but will wear faster than premium alternatives when maintenance is neglected. Track cleaning frequency matters more on MIWD sliding products than on premium brands. Aluminium windows from MIWD in commercial and light commercial applications require the same care as any powder-coated aluminium - pH-neutral products, no abrasives.

Step 1 of 2: Manufacturer Recommendations

Official Care Guidance

No official guide published. The steps below are based on Justin Orloff's 25 years hands-on experience with this system.

Step 2 of 2: The Orloffs Protocol

The Orloffs Protocol

This is how I clean MI Windows and Doors windows. The tools and technique below come from 25 years of daily professional work on the glass. Every step has been tested on real installations and adapted specifically for MI Windows and Doors systems.

Pro Tools

My daily tool list. This is what I carry to every job.

1Ettore squeegee 14 inch
2Razor scraper
3Track brush set
4pH-neutral multi-surface cleaner
Watch the Window Cleaning Manifesto hereSee these techniques in action. Free, 5 minutes, lifetime access.

Pro Tips

  • On new construction MIWD developments, walk the property before pricing to count windows, identify construction debris levels, and check for any broken or damaged units to document pre-clean. New construction liability starts from the first visit.
  • MIWD single-hung windows - the lower sash slides up - are extremely common on eastern US new construction. Standard outside-in technique works on first-floor units. Upper-storey single-hung windows are not tilt-wash - price exterior access separately.
  • Construction sticker adhesive on glass and frames is the most common debris issue on new build MIWD windows. Use a citrus-based adhesive remover on glass only - not frames. Rinse immediately and thoroughly.

What NOT To Do

  • Do not use a razor scraper on vinyl or aluminium frames
  • Do not use solvent or abrasive products on vinyl frames
  • Do not skip weep hole clearing on first-clean new construction properties
  • Do not use alkaline cleaners on powder-coated aluminium

Bundle Kits and Tool Recommendations

Bundle Kit

Orloffs Squeegee Pro Pack flat lay
Pro KitThe full professional setup. Brass squeegees, T-bar with applicator cover, tool belt, rags, soap, and bucket. Everything from the daily tool list in one box.Shop now →
Orloffs Squeegee Pro Pack bundled

Tool Recommendations

Ettore squeegee 14 inch

View on Amazon [coming soon]

pH-neutral glass and frame cleaning concentrate

View on Amazon [coming soon]

Razor scraper for construction debris on glass

View on Amazon [coming soon]

Cleaning Frequency

Clean every 4–8 weeks depending on environment.

Frequently Asked Questions

How often should I clean MI Windows and Doors windows?
For MI Windows and Doors windows, we recommend cleaning twice a year depending on your local environment. Coastal or urban locations may need more frequent cleaning.
What tools do I need for MI Windows and Doors windows?
Professional cleaning of MI Windows and Doors windows requires my daily tool list of: Ettore squeegee 14 inch, Razor scraper, Track brush set, pH-neutral multi-surface cleaner.
What should I avoid on MI Windows and Doors windows?
Do not use a razor scraper on vinyl or aluminium frames
Does MI Windows and Doors publish an official cleaning guide?
MI Windows and Doors has not published an official cleaning guide. The protocol on this page is based on Justin Orloff's 25 years hands-on experience.
Can I use a water-fed pole on MI Windows and Doors windows?
Yes, purified water via a water-fed pole is one of the safest methods for MI Windows and Doors glass. Ensure TDS is at or near zero before use and avoid directing high-pressure water at seals or gaskets.

Field Notes

“MIWD new construction developments are high-volume, consistent work. Establish an efficient sequence - same window type repeated across dozens of units - and the round is straightforward once the technique is dialled in. First-clean new construction pricing should always be higher than ongoing maintenance pricing. The additional time for construction debris removal, weep hole clearing, and sticker removal is significant. Mid-Atlantic US climate means MIWD windows in Pennsylvania, Maryland, and Virginia experience significant temperature swings and seasonal weather. Track and hardware maintenance matters more in four-season climates than in more stable climates.”

Justin Orloff

What's next for you?

The Skill

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Manufacturer

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