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  1. Home
  2. ›Service Areas
  3. ›Woodlawn, MD
  4. ›Windows
Serving Woodlawn, MD 21207
Window & Door Specialist

Window Replacement in Woodlawn, MD

ENERGY STAR double-hung, casement, and bay windows with Low-E glass and argon fill for Woodlawn homes — from the 1950s ramblers and cape cods in Security and Milford Mill to the split-levels of Windsor Mill and Gwynn Oak.

Serving 21207 · 21244

5 ⭐⭐⭐⭐⭐· Google & Trustpilot reviews· MHIC #05-146983
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ENERGY STAR · Low-E + argon · lower BGE bills · MHIC #05-146983

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

5 ⭐⭐⭐⭐⭐· Google & Trustpilot reviews

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

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!

google
Niurka Yazmin Garcia Montesino

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.

google
Preston Blake Jr

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!

google
Linda A

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!

google
Thomas McDaniel

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!

google
Eric Taft

Eric Taft

October 20, 2026

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

The ramblers, cape cods, and split-levels that fill Woodlawn's neighborhoods — Security, Milford Mill, Windsor Mill, Gwynn Oak, and Powder Mill — went up between the 1950s and 1970s, which means a lot of 21207 and 21244 homes are still running their original single-pane wood windows or the aluminum replacements that went in a generation ago. Those old windows are where Woodlawn homeowners feel the house the most: fogged and failed seals you can't see through, sashes painted shut or stuck, cold drafts in January, and BGE bills that climb every winter. On mid-century homes built well before modern energy codes, the windows are usually the weakest point in the whole thermal envelope. We install ENERGY STAR-rated windows built for the Maryland climate — double-hung, casement, and bay styles with Low-E coatings and argon gas fill that cut heat loss in winter and keep the summer sun out. On Woodlawn's older homes we most often go full-frame rather than a pocket insert, because the aging wood and aluminum frames in these ramblers and cape cods have frequently rotted or corroded and an insert would only trap the problem. Full-frame replacement lets us inspect the opening, replace any bad framing, and start clean. Where the existing frames are sound, an insert is the faster, more affordable path and we'll tell you honestly which your home needs. Every window is installed by our own local crew and every opening is flashed and foam-sealed so air and water stay out for good, the step that actually delivers the lower BGE bills homeowners are after. We back the work with a written workmanship warranty on top of the manufacturer's glass and frame warranty. You get a line-itemed, per-window estimate before anything is scheduled, so the number you approve is the number you pay. We're a family-owned Maryland company that has served Woodlawn and Baltimore County since 2016, and we're happy to phase a whole-home replacement across a couple of visits — starting with the worst rooms — so homeowners in Security, Milford Mill, and Gwynn Oak can spread the project to fit a budget. Whether you have two failed sashes or a house full of original single-pane windows, we'll give you a straight assessment and a clear plan. As a licensed window contractor in Woodlawn, we handle full-frame window installation and replacement.

Most Woodlawn window projects run about $650–$1,400 per window installed, with whole-home replacements typically $8,000–$26,000 depending on the number of windows, the style, and whether full-frame or insert installation is needed. You get a written, line-itemed estimate before scheduling. Call 410-508-6141.

Windows in Woodlawn — Common Questions

How much does window replacement cost in Woodlawn, MD?

In Woodlawn, replacement windows run about $650 to $1,400 each installed, and a whole-home project is typically $8,000 to $26,000. The number of windows, the style you choose, and whether we install full-frame or inserts drive the price. We put a line-itemed, per-window number in writing before scheduling.

Will new windows lower my BGE bills?

Yes. Woodlawn's 1950s–1970s ramblers and cape cods were built before modern energy codes, so their old single-pane or aluminum windows leak heat. ENERGY STAR windows with Low-E glass and argon fill, flashed and foam-sealed, cut drafts and can noticeably lower your winter BGE bills.

My old windows are foggy — what causes that?

That fog is a failed seal. On the aging aluminum and wood windows common in Woodlawn's older housing stock, the seal between the panes breaks down and moisture gets trapped inside the glass. Once a seal fails it can't be repaired — the window has to be replaced.

Do I need full-frame replacement or inserts?

It depends on the frame. On Woodlawn's older ramblers and cape cods we often find rotted wood or corroded aluminum frames, which call for full-frame replacement so we can inspect and repair the opening. Where the existing frames are sound, inserts are the faster, more affordable option — we'll tell you honestly which your home needs.

More services in Woodlawn

Gutters in Woodlawn →Siding in Woodlawn →All Woodlawn services →

Windows in nearby Maryland cities

Windows in Severn, MD →Windows in Gambrills, MD →Windows in Millersville, MD →Windows in Odenton, MD →Windows in Pasadena, MD →Windows in Crofton, MD →Windows in Linthicum, MD →Windows in Crownsville, MD →Windows in Columbia, MD →Windows in Ellicott City, MD →Windows in Glen Burnie, MD →Windows in Hanover, MD →Windows in Severna Park, MD →Windows in Catonsville, MD →Windows in Jessup, MD →Windows in Elkridge, MD →

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Family-owned Maryland contractor since 2016 — roofing, siding, windows, gutters, and doors across Anne Arundel & Howard County. MHIC #05-146983 · 5★★★★★ Google & Trustpilot.

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