Can I add screen panels or windows to a covered patio later?

Yes. A covered patio can be built open and later upgraded with screen panels or Sunspace window enclosures without rebuilding the structure.

Patio Cover Installation and Contractor in Anne Arundel County, MD

A covered patio is a roofed structure built over a ground-level patio surface, providing the sun and rain protection of a porch without the raised-floor construction. Diamond Decks specializes in patio cover installation in Anne Arundel County, MD, handling construction from footings through roof tie-in with a dedicated porch crew and a 5-year workmanship warranty.

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Structural Posts And Footings

The posts carry the roof, and how they connect to the patio surface below determines whether the whole structure remains true, which is why choosing the right patio cover contractor in Anne Arundel County, MD, matters.

Independent Footings: Posts set on their own footings so the load transfers to the ground, not the patio surface.
Post Base Detailing: Metal post bases installed between the footing and the post to keep water off the bottom of the wood.
Post Wraps And Finishes: Wrapped posts in white or contrasting finishes selected during design.

Roof Structure And Tie-In

How the new patio roof connects to the existing house is what separates a clean addition from a bolted-on afterthought, and our expertise as a patio cover builder in Anne Arundel County, MD, ensures seamless integration.

Pitch Matched To The Home: New roof pitch designed to match the existing roof.
Flashed Tie-In: New roof flashed into the existing roof and wall surfaces to keep water out.
Drainage Planning: Gutters and grading sized for the new roof footprint so runoff moves away from the house and the patio.

A Severn, Maryland Porch Builder Since 1993

Diamond Decks was founded in November 1993 in Severn, Maryland. Over the years, we have grown into a trusted patio cover company in Anne Arundel County, MD, with specialized crews for decks and porches, running out of a single shop, with Bill Zinnert still on the tools and on the job site every week. The company is a NADRA member, a Fiberon Ambassador, and has been a Best of the Best winner every year since 2018.

Covered Patios From Real Anne Arundel County Backyards

A closer look at covered patio designs built across Anne Arundel and Howard Counties.

Our Local Service Area

From Annapolis Waterfront to Baltimore Suburbs

Anne Arundel County

Howard County

Montgomery County

Central Maryland and Surrounding Cities

Why Maryland Homeowners Keep Recommending Us

Best of the Best winner since 2018. Hear what our clients in Annapolis, Severn, Columbia, and Ellicott City have to say about working with Bill and the Diamond Decks team.

Patio Cover Contractor FAQs

Do you build the patio surface too, or only the roof over it?

Both. If you already have a paver or hardscape patio, we build the covered structure directly over it. If you are starting from scratch, we design and install the patio and the roof structure together.

Will the new patio roof match my existing roofline?

Yes. The new roof is designed to match the existing pitch and finish, and tied in with proper flashing.

How long does it take to build a covered patio?

Two to three weeks on site once construction begins; the roofing and finish work take longer than an open deck build.

What is the price range for a covered patio?

Covered patios sit at the higher end of our project range, with combinations that include a new patio surface going higher. We do not take on projects under 200 sq. ft. You will get a specific number after the in-home consultation.

Why Hire Diamond Decks?

Bill Zinnert personally manages project, from the pre-construction meeting through the final walkthrough.

#1 grade extreme-rated framing paired with premium composite from Fiberon, Trex, Timbertech, Wolf, and Deckorators, backed by manufacturer warranties.

You see your deck modeled in 3D before a single board is ordered.

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Free Design Consultation