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Serving Severn, Gambrills, Millersville, Odenton +13 areasFamily-owned roofing and exterior contractor based on Thompson Ave in Severn, MD — licensed under MHIC #05-146983 since 2016. We replace roofs, repair leaks, install James Hardie siding, ENERGY STAR windows, seamless gutters, and entry doors across Anne Arundel, Howard & Baltimore County. Free written estimate back in 24 hours. Call 410-508-6141.
5 ⭐⭐⭐⭐⭐ · Google & Trustpilot reviewsFree written estimate — back in 24 hours. Call 410-508-6141.
5 ⭐⭐⭐⭐⭐ · Google & Trustpilot reviewsLicensed under MHIC #05-146983 since 2016. We replace roofs, repair leaks, install James Hardie siding, ENERGY STAR windows, seamless gutters, and entry doors across Anne Arundel, Howard & Baltimore County. Free written estimate back in 24 hours. Call 410-508-6141.
WHY MARYLAND HOMEOWNERS CALL APPER
Apper Construction is a family-owned Maryland exterior contractor based on Thompson Ave in Severn — we've been on Anne Arundel and Howard County roofs since 2016. Roofing, roof repair, siding, windows, gutters, doors. That's it. No basement remodels, no kitchen renovations. We do exteriors, and we do them right. Call 410-508-6141 for a free written estimate.
Every job is installed by our own local crew. We use architectural shingles, full ice-and-water shield at all eaves and valleys, and ridge venting that meets current Anne Arundel County code. James Hardie fiber-cement and premium vinyl siding installed to manufacturer spec. ENERGY STAR–rated windows with lifetime glass-breakage coverage. MHIC #05-146983.
You get a written, line-itemed estimate before anything is scheduled. Clear pricing, no high-pressure sales, and a job site left clean. We carry $1M general liability insurance. Family-owned since 2016. Call 410-508-6141.
Get My Free EstimateWHAT WE DO
GAF, CertainTeed, James Hardie, and ENERGY STAR products installed to a Maryland-specific spec — built for nor'easter wind off the Bay, summer thunderstorms, and the freeze-thaw cycle that breaks lesser roofs. Every project gets a free written estimate and our written workmanship warranty (10 years on roof replacements, 2 years on repairs). Call 410-508-6141.
Family-owned since 2016, MHIC #05-146983 — serving Anne Arundel County, Howard County, and Baltimore County, Maryland.
Full tear-off and architectural shingle install — ice-and-water shield at every eave and valley, ridge venting to current Anne Arundel County code, and a 10-year written workmanship warranty. 1–2 day install on most homes. Family-owned since 2016, MHIC #05-146983. Free written estimate · 410-508-6141.
James Hardie fiber-cement and premium vinyl siding — color-matched, HOA-vetted when needed, and tough enough for nor'easter wind off the Chesapeake. We install to manufacturer spec with full housewrap, precision fastening, and flashed transitions. Free estimate · 410-508-6141.
ENERGY STAR–rated replacement windows with lifetime glass-breakage coverage installed across Anne Arundel and Howard County. Lower BGE energy bills, quieter rooms, and a written estimate back in 24 hours. Family-owned since 2016, MHIC #05-146983. Free estimate · 410-508-6141.
Seamless aluminum gutters and leaf-guard systems fabricated on-site and sized for Maryland's heavy summer downpours and oak-canopy debris load. Note: we install and replace gutters — we don't do gutter cleaning. Free written estimate · 410-508-6141.
Entry, storm, and patio doors built for Maryland weather — pre-hung, properly flashed, and installed in a day by our own crew. Energy-efficient options available. Free written estimate across Anne Arundel and Howard County. Family-owned since 2016, MHIC #05-146983. Call 410-508-6141.
OUR WORK
Browse recent roofing, siding, window, and gutter projects completed across Anne Arundel and Howard County. Real Maryland homes, real results — and the same family-owned crew on every one. Call 410-508-6141 for references or a free estimate.
Before
Before
BeforeWHAT MARYLAND HOMEOWNERS SAY
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
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
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
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
Very Happy with our new roof. Leo and his crew were great. We needed a lot done to replace and repair our roof and they gave us a very fair price. Highly recommend them.
Dominic Ferragamo
Apper Construction exceeded my expectations! Their team was professional, punctual, and easy to work with throughout the entire process. The quality of their workmanship and the materials they used were top-notch. What really impressed me was their efficiency. They removed my old roof and completed the entire replacement in just one day. When the job was finished, they did an excellent cleanup and left my property spotless. If you're looking for a roofing company that delivers quality work, professionalism, and outstanding service, I highly recommend Apper Construction. Great experience from start to finish!
Kevin MaGee Sr.
Insights & tips
Practical guidance to help you plan your next project.
A real, itemized 2026 siding replacement cost from a Pasadena, MD project — full price breakdown, what a base quote usually leaves out, and how to read a siding estimate.
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Flat and low-slope roofs fail differently than shingles — ponding, seams, and UV. Here's how we repair and replace them in Maryland with EPDM rubber, what it really costs, and when to coat vs. replace — shown on a real job.
A real, itemized 2026 siding replacement cost from a Pasadena, MD project — full price breakdown, what a base quote usually leaves out, and how to read a siding estimate.
A summer storm dropped a tree onto a Severn, MD home and punched a hole through the roof. The real job, photo by photo — damage, same-day tarp, decking repair — plus what emergency storm roof repair costs and what to do first.
Flat and low-slope roofs fail differently than shingles — ponding, seams, and UV. Here's how we repair and replace them in Maryland with EPDM rubber, what it really costs, and when to coat vs. replace — shown on a real job.