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Energy-efficient replacement windows installed in a home

Window Replacement in Pittsburgh, PA

Energy-efficient replacement windows for comfort and savings.

Get a Free Estimate (412) 492-7663

Ireland Contracting installs energy-efficient replacement windows that cut drafts, reduce noise, and lower heating and cooling bills. We handle everything from a single window to a whole-home replacement.

Old, single-pane, and failing windows are a major source of energy loss. Modern double- and triple-pane windows with low-E coatings keep conditioned air inside and your home comfortable year-round.

We measure, supply, and install to a precise fit and finish, with clean trim work inside and out.

Why window efficiency matters in Pittsburgh

Pittsburgh's cold winters and warm, humid summers mean your windows work hard year-round. Older single-pane and worn double-pane windows leak conditioned air, drive up heating and cooling bills, and let in drafts and street noise. Many of the region's older homes still have their original windows.

Energy-efficient replacements with double- or triple-pane glass, low-E coatings, and insulating gas fills keep heat in during winter and out during summer — a difference you feel most in our region's temperature extremes.

What's included

  • Lower energy bills and fewer drafts
  • Reduced outside noise
  • Low-maintenance, easy-clean designs
  • Improved security and comfort
  • Professional, precise installation

Windows products we install

We install premium, manufacturer-backed product lines — here are the brands we trust.

  • ProVia vinyl replacement window

    ProVia Vinyl Windows

    Low-maintenance vinyl windows built with SunShield® vinyl for superior weatherability and color retention.

    • SunShield® vinyl withstands UV, weather, and southern exposure
    • Pharmaceutical-grade compounding for consistent color
    • Meets or exceeds AAMA strength and color-retention standards

    Lifetime transferable warranty against chipping, cracking, peeling, and blistering

  • Pella aluminum-clad wood window

    Pella Wood-Clad Windows

    Wood windows wrapped in low-maintenance EnduraClad® aluminum — warmth inside, weather protection outside.

    • EnduraClad® aluminum exterior sheds water and resists fading
    • EnduraGuard® wood protection vs. moisture, decay, mold, and termites
    • Roll-form (Lifestyle Series) or extruded (Reserve) aluminum cladding
  • Marvin wood window

    Marvin Wood Windows

    Natural wood windows offering warmth, craftsmanship, and exceptional customizability.

    • Exterior woods: Pine, Douglas Fir, and Honduran Mahogany
    • Finger-jointed for stability and warp resistance
    • Custom sizes and shapes with excellent insulation

Our windows process

  1. 1 In-home measure & consult. We measure each opening and help you choose frames, glass packages, and styles that fit your home and budget.
  2. 2 Custom order. Your windows are built to your exact opening sizes for a precise, draft-free fit.
  3. 3 Professional installation. We remove the old units, install and seal the new windows, and finish the interior and exterior trim cleanly.
  4. 4 Final walkthrough. We check operation and sealing on every window and clean up completely.

Windows across Western PA

We provide windows throughout the Greater Pittsburgh area and Western Pennsylvania, including:

Windows FAQs

How much do replacement windows cost in Pittsburgh?

Replacement window cost depends on the number of windows, their size, the frame material, and the glass package you choose. We provide a free, itemized estimate for your specific project.

How long do replacement windows take to install?

Most whole-home window projects are installed in one to two days once your custom windows arrive. A few windows can often be done in a single day.

What window styles do you install?

Double-hung, casement, sliding, bay and bow, picture, and specialty shapes — we help you match the style to each room and your home's architecture.

Will new windows reduce outside noise?

Yes. Modern double- and triple-pane windows with insulating glass noticeably cut street and neighborhood noise compared to older single-pane units.

Do new windows really save money?

Yes. Energy-efficient windows reduce heating and cooling loss, which lowers utility bills and improves year-round comfort.

Do replacement windows add home value?

Yes — energy-efficient windows are a strong resale feature and one of the more consistent exterior upgrades for return on investment.

Trusted by Pittsburgh Homeowners

4.8 · 506 Google reviews

  • “I have had Ireland Contracting at my home several times, which should tell you how I feel about their work. Incredibly efficient and professional, ON TIME every time, and the workmanship is unmatched! I would recommend Ireland Contracting to everyone. Thanks for the excellent work!”
    — Bob P.
  • “We recently had Ireland Contracting replace our roofs: house, separate garage, and even a small shed. Everyone from start to finish was very pleasant to work with. The crew was polite and very efficient, and cleanup afterward was excellent. We were surprised they completed all the work in only 2 full days. We'd highly recommend Ireland Contracting for your roof replacement.”
    — David B.
  • “Ireland Contracting was great to deal with. Last spring they did my roof and this spring my soffit and fascia. Adam, Bob, Rudy, and the crew did a fantastic job on the gutters, soffit, and fascia. I would highly recommend Ireland Contracting for any job.”
    — John G.

Need windows? Let's talk.

Get a no-pressure inspection and written estimate. Family-owned, certified, and trusted across Western PA since 1994.

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