Serving Millersville, MD 21108

Window & Door Specialist

Window Replacement in Millersville, MD

ENERGY STAR double-hung, casement, and bay windows with Low-E glass and argon fill for Millersville homes — from Shipley's Choice and Indian Landing to Earleigh Heights and Severn Hill.

Serving 21108

5 ⭐⭐⭐⭐⭐· Google & Trustpilot reviews· MHIC #05-146983

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ENERGY STAR Low-E glass · lower BGE bills · MHIC #05-146983

Energy-efficient replacement windows on a Millersville, MD home by Apper Construction

5 ⭐⭐⭐⭐⭐· Google & Trustpilot reviews

Installed by our own local Maryland crew. MHIC #05-146983. Free written estimate, usually within 24 hours.

Verified Google reviews

What Maryland homeowners say

⭐⭐⭐⭐⭐ Excellent Service, Professionalism, and Quality Work! I had an excellent experience with Apper Construction! From the very beginning, Leandro was professional, friendly, and attentive. He took the time to answer all my questions, explain the process, and provide clear information about the work and pricing. I contacted them regarding the installation of a roof vent for my bathroom exhaust fan, and I couldn’t be happier with the experience. I also want to recognize the technician who performed the installation. He did an excellent job, worked professionally, and made sure everything was properly completed. I truly appreciate his attention to detail and the quality of his work. What stood out to me the most was the excellent communication, honesty, professionalism, and dedication to customer satisfaction from start to finish. Thank you to Leandro and the technician for making this such a positive experience. I highly recommend Apper Construction to anyone looking for reliable service, quality workmanship, and a team that truly cares about its customers. I would definitely hire them again!

Niurka Yazmin Garcia Montesino

November 15, 2026

LeAndrue and his crew did exceptional work. I couldn't ask for a better experience. A + for a job well done. Highly recommended.

Preston Blake Jr

November 11, 2026

We were in need of a new roof and there was a time limit on it due to a horrible insurance company, you know the one that’s “on your side”, but they’re really not. I had at least four roofing companies come out and give me their speech like they do. For the fifth company, I dialed the wrong number that day and somehow by the grace of God a gentleman answered by the name of Leandro who owned a roofing and construction company. What are the chances? I Explained my situation and he came out the very same day to check out the roof which was 4,400 sq.ft. Mr. Leandro was so professional and answered all of our questions. Just listening to him speak about the procedure for a roof replacement was remarkable. Needless to say, he and his employees got the job! My roof was replaced even with new plywood, in one full working day. Mr. Leandro brought nine workers starting 7 AM and leaving around 6 PM. Once the Job was complete, you would’ve never known they had been there, which was so impressive. They had tarped everything, blew gutters out, and used a huge magnet to make sure there were no loose nails laying around. Throughout this whole ordeal, did I mention the price was very very fair! God Bless You Mr. Leandro and your hard-working employees!

Linda A

November 2, 2026

From first meeting until job completion Apper was responsive, punctual, and expertly professional: highly recommended for vinyl siding replacement. The company owner showed personal interest by doing the initial estimate, checking work progress, and asking my impressions as work progressed. The 5-man crew operated efficiently, with well orchestrated precision, completing the job with excellent results in 2-days. Apper Construction is the place to start for expert vinyl siding replacement at a fair price!

Thomas McDaniel

October 24, 2026

Strongly recommend Apper construction for any roof and exterior needs. Noticed a leak on Sunday, they were out on Monday to assess and give a quote. Leandro and his team were impressively thorough and they did a great job. Very thorough cleanup too!

Eric Taft

October 20, 2026

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Also in Millersville:Gutters →Siding →All Millersville services →

Window replacement in Millersville is really two different jobs depending on which street you're on, because Millersville is a tale of two housing eras living side by side. In the 1970s ranches and split-levels of Earleigh Heights and Indian Landing, we're usually pulling out original single-pane or early aluminum sashes — the kind that stick, rattle, and bleed heat straight through the frame — or first-generation double-pane units whose seals failed decades ago and fogged over. In the 1990s–2010s colonials of Shipley's Choice and Severn Hill, the windows are newer but they've reached the age where builder-grade vinyl loses its argon and its weatherstripping gives out. Two eras, two failure modes, one result: drafty rooms and a BGE bill that's higher than it needs to be. We replace both with ENERGY STAR double-hung, casement, and bay windows carrying Low-E glass and argon fill. On the older ranches, the jump from single-pane aluminum to a modern insulated unit is dramatic — the drafts stop, the outside noise drops, and the heating and cooling load falls noticeably through Maryland's humid summers and cold winters. On the newer colonials, replacing tired builder windows restores the efficiency the house was supposed to have. Millersville's heavy oak-and-maple canopy actually helps in summer by shading the glass, but it also means moisture and shade sit on the north and east elevations, so getting the flashing and sealing right at each opening matters here. We inspect every opening rather than quoting one blanket price, because in a mixed-era town like Millersville the right method genuinely varies house to house. Where the frame and sill are sound we do an insert replacement that preserves the trim; where there's rot or a failing original frame — common in the 1970s homes — we do a full-frame replacement so we can flash and foam-seal the opening properly. On the older ranches we match the sightlines so the new windows don't look out of place next to their neighbors, and on the colonials we match the grille patterns. Every install is done by our own local crew, backed by a written workmanship warranty, and permitted through Anne Arundel County, with any community architectural-review paperwork handled for you. As a licensed window contractor in Millersville, we handle full-frame window installation and replacement.

Most Millersville window projects run about $650–$1,500 per window installed, or roughly $9,000–$28,000 for a whole-home replacement, depending on size, style, and whether an opening needs full-frame work. The larger Shipley's Choice and Severn Hill colonials with more openings sit toward the top; the 1970s ranches often come in lower. You get a written, line-itemed estimate — including any full-frame and flashing work — before anything is scheduled. Call 410-508-6141 for a free written estimate.

Windows in Millersville — Common Questions

How much does window replacement cost in Millersville, MD?

Most Millersville window jobs run about $650 to $1,500 per window installed, or roughly $9,000 to $28,000 for a whole-home replacement. The 1970s ranches in Earleigh Heights often come in lower; the larger Shipley's Choice colonials with more openings sit higher. We measure every opening and put a line-itemed number in writing before scheduling.

My 1970s Millersville ranch has original aluminum windows — is replacing them worth it?

Very much so. Original single-pane or early aluminum sashes stick, rattle, and bleed heat through the frame itself. Swapping them for ENERGY STAR double-hung units with Low-E glass and argon fill stops the drafts, cuts outside noise, and drops your heating and cooling load noticeably. It's one of the highest-impact upgrades on an older Millersville home.

Will new windows lower my BGE bill on a Shipley's Choice colonial?

Yes. The builder-grade vinyl on Millersville's 1990s–2010s colonials has reached the age where the argon has bled out and the weatherstripping has failed, so the house leaks conditioned air. New ENERGY STAR windows with Low-E glass restore the efficiency the home was designed to have and bring the bill back down.

Insert or full-frame — how do you decide?

We inspect each opening. If the frame and sill are sound, an insert replacement keeps the trim. If there's rot or a failing original frame — common in Millersville's 1970s ranches — full-frame replacement lets us flash and foam-seal the opening correctly instead of hiding a water problem behind new glass. We match sightlines and grille patterns to your home's era either way.

More services in Millersville

Gutters in Millersville →Siding in Millersville →All Millersville services →

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