Professional Roofing That Protects Your Home

Serving Homeowners Across Prince George's County

Worried about leaks or missing shingles? We provide roofing for homes in Bowie, Upper Marlboro, and Clinton and the surrounding communities. Call 301-780-3792 to schedule a free roof check.

Based in Temple Hills, we arrive on time, protect your landscaping, and maintain clear communication from the first inspection to the final walkthrough.

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Asphalt Roofing

Is your roof showing shingles in the yard, dark streaks, or small leaks after storms? We provide asphalt roofing for homes in Bowie, Upper Marlboro, Clinton, and surrounding communities. Call 301-780-3792 to get a fast, friendly assessment. Based in Temple Hills, our team is nearby, responsive, and […]

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Flat Roofing

Leaks, ponding water, and UV can shorten your roof's life fast. Based in Temple Hills, we provide flat roofing for Bowie, Upper Marlboro, Clinton, and the surrounding communities. Call 301-780-3792 to schedule your assessment. A low-slope roof works hard every day. Instead of shedding rainwater quickly, it […]

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Roof Inspection

Not sure how your roof handled the last storm or season change? Based in Temple Hills, our roof inspection helps homeowners in Bowie, Upper Marlboro, Clinton, and the surrounding communities. Call 301-780-3792 to schedule. If you live in Upper Marlboro or Clinton, ask about a convenient appointment […]

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Roof Installation

Your roof should be strong, efficient, and worry-free. We provide roof installation for homeowners in Bowie, Upper Marlboro, Clinton, and surrounding communities. Call 301-780-3792. Situated in Temple Hill, we help busy homeowners replace aging roofs with durable materials and clean workmanship that fits their budget and timeline. A […]

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Roof Repair

Worried about a roof leak or missing shingles? We provide roof repair for homes in Bowie, Upper Marlboro, and Clinton and the surrounding communities. Call 301-780-3792 to get help today. Small roofing issues turn into big, expensive problems when they sit. A loose shingle can let water […]

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Roof Replacement

Worried your roof is nearing the end of its life? Based in Temple Hills, we provide roof replacement for homeowners in Bowie, Upper Marlboro, Clinton, and the surrounding communities. Call 301-780-3792 to schedule a friendly, no-pressure roof assessment. Your roof shields everything beneath it. When shingles wear […]

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Shingle Roofing

Is your roof showing its age or letting water sneak in during storms? Although we're located in Temple Hills, we provide expert shingle roofing for other locations. Call for service in Bowie, Upper Marlboro, Clinton, and the surrounding communities. Call 301-780-3792 to schedule your inspection. Putting off […]

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Book Through Our Website & Receive An Additional 5% Off Your Project

Why Timely Roof Care Matters

Your roof shields everything under it. When shingles curl, flashing loosens, or sealants fail, water finds the fastest path into wood framing, insulation, and drywall. Small leaks often stay hidden until stains, musty smells, or rising energy bills appear. Left alone, moisture can lead to rot, mold growth, and damaged attic insulation that shortens HVAC life and increases costs.

Professional attention prevents that snowball effect. A trained crew spots early warning signs that are easy to miss from the ground, evaluates ventilation to ensure heat and humidity escape, and uses proven repair methods that extend the system's service life. If wear is widespread, we help you compare targeted roof repair to full roof installation so you invest wisely for your home's age, budget, and long-term plans.

  • Reduce the risk of interior water damage and costly structural fixes
  • Preserve curb appeal with clean lines and consistent shingle color
  • Improve attic ventilation for better comfort and energy efficiency
  • Protect warranties with materials installed to manufacturer specs

Roofing Services You Can Trust

Clear steps make a strong result. Here is how our team approaches every project with care and craftsmanship:

  1. Inspection and Photos: We document the condition of shingles, flashing, valleys, and vents, then share straightforward findings.
  2. Options And Estimate: You get side-by-side choices for roof repair or roof installation with transparent pricing that varies by roof size, materials, and access.
  3. Material Selection: We help you pick architectural shingles, metal accents, or low-slope solutions that fit your style and budget.
  4. Prep and Protection: The crew covers landscaping and siding, sets safety lines, and stages materials to keep the site tidy.
  5. Tear-Off And Deck Fixes: Old layers are removed, the deck is inspected, and any soft spots are replaced before new underlayment is installed.
  6. Weatherproofing: Ice and water shield in critical areas, synthetic underlayment across the field, and precision-bent flashing at walls, skylights, and chimneys.
  7. Shingle or Panel Installation: We align courses, fasten to spec, and integrate ridge vents for balanced airflow.
  8. Detailing and Cleanup: Sealants are applied where needed, nails are magnet-swept, and we walk the site with you to confirm every detail.
  9. Care Tips: We leave you with simple seasonal checks so your roof performs at its best year after year.

Throughout the process, you have a single point of contact who keeps you informed on schedule, weather windows, and delivery timing so there are no surprises.

Surfaces, Materials, And Situations We Handle

Homes vary, and so do the roofs that protect them. Our crews work with the most common residential systems and the details that often cause leaks. Whether you need a small, targeted fix or a full replacement, we match techniques to the surface and its specific challenges.

  • Architectural and three-tab asphalt shingles for pitched roofs
  • Metal accents such as standing seam porch roofs and bay windows
  • Low-slope areas over additions and garages using appropriate membranes
  • Valleys, step flashing, counterflashing, and pipe boot replacements
  • Skylight re-flash and curb sealing to stop slow, hidden drips
  • Storm-related issues like wind-lifted tabs, lost ridge caps, and hail bruising

We also address attic airflow with ridge, soffit, and baffle improvements that defend against heat buildup and condensation. If you are unsure whether a problem calls for roof repair or a new roof installation, we explain the pros and cons in plain language so you can choose with confidence.

How Weather And Age Impact Your Roof

Summer sun bakes shingles, sudden downpours test valleys and flashing, and seasonal temperature swings fatigue sealants. Tree shade can slow drying after rain, and north-facing slopes may show algae staining that traps moisture and reduces roof warming during cooler months.

Our roofing across Prince George's County is designed to handle quick-changing storms, humid summers, and the freeze-thaw cycles that can stress older roofs.

To get ahead of issues, schedule quick visual checks after major storms, keep gutters clear so water moves off the roof fast, and trim overhanging limbs that drop debris. These simple habits preserve shingles and reduce the chance of clogged valleys or lifted flashing.

Local Tip: Pop-up thunderstorms can overload gutters fast. A spring and fall roof check with a quick gutter cleanout often prevents water from backing up under shingles and saves money compared to emergency leak calls.

Why Choose Grellis Construction For Your Project

When you invite a crew to your home, you deserve respect, skill, and clean work. That is our standard on every job. As a trusted remodeling contractor, we bring organized project management and craftsmanship that keeps your project on track, even if your home sits outside the bustle of a major metro.

  • Clear Communication: One point of contact from estimate to final walkthrough
  • Quality Materials Installed To Manufacturer Specifications
  • Respect For Your Property With Careful Protection And Thorough Cleanup
  • Photos Before, During, And After So You See Exactly What Was Done
  • Options Tailored To Your Budget And Timeline

We stand behind our work with documented warranties on both materials and workmanship. If you are weighing roof installation versus roof repair, we will provide side-by-side plans and help you choose the option that delivers the best long-term value.

Ready to talk details or get a fast assessment? Call 301-780-3792 and our team will walk your roof, share findings, and give you clear next steps.

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Questions Homeowners Ask Before Booking

How Do I Know If I Need Roof Repair Or A Full Replacement?

How Long Does A Typical Residential Project Take?

What Materials Do You Recommend?

Will This Be Messy Or Disruptive?

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