The roofer you trusted is going solar. It starts with a free roof inspection — photo report yours to keep. Office (240) 880-2108 · office@udroofing.com · MD & VA Licensed
Vienna, VA · Fairfax County

Solar panel installation in Vienna — roof first.

Quick answer: United Developers assesses the roof before quoting solar in Vienna — a free inspection, typically within 24 hours, with a photo report you keep either way. Roofing work is ours (MHIC #111971, VA Class A #2705183185, GAF Factory-Certified since 2005); electrical work is performed by licensed trade partners. Solar pricing and incentives are confirmed in writing after the assessment, never quoted sight-unseen.

Across the 22180, 22181, 22182 ZIPs and the rest of Fairfax County — and neighbouring Oakton, Tysons, Dunn Loring, McLean, we have been replacing and repairing roofs since 2005. Solar is a newer service line for us, and the roof under an array is exactly the part most solar quotes skip.

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Vienna, VA · Fairfax County MHIC #111971 · VA Class A #2705183185 GAF Factory-Certified Electrical work performed by licensed trade partners
Why Roof First

In Vienna, the roof decides the order of the job

An array is designed to sit up there for decades. The roof beneath it is the shortest-lived part of the system — and the part a solar-only quote has no reason to look at.

Reroofing under an array costs twice

Remove the array, replace the roof, reinstall the array. You pay the same labour twice. A free inspection tells you the right order before you sign anything.

Flashing is our trade

Mounting hardware goes through the roof, and flashing it is roofing work. That is what we have done across Fairfax County since 2005, with a 2-year workmanship warranty in writing on our own work.

One contract for Vienna

Roof and array on one contract with one project manager, and the electrical scope to a licensed trade partner we schedule — instead of a roofer and a solar company blaming each other over a leak.

Local detail that changes the job

Permits, housing stock & what we see in Vienna

Who permits the work

The Town of Vienna issues its own permits for properties inside the town limits, separate from Fairfax County — different submission, different inspectors. A Vienna mailing address does not always mean you are inside the town, so we confirm before filing.

For a rooftop array that generally means two permits rather than one: a building permit for anything fastened to the roof structure, and a separate electrical permit for everything downstream of it, pulled by the licensed electrician on the job. We sequence both and pull the building permit under our licence — you file nothing yourself.

What Vienna homes are actually built like

Vienna's older core is mid-century ranch and colonial housing on generous lots, with newer infill and rebuilds mixed in.

For solar that matters in two specific places: the age and condition of the roof covering, which decides whether the array goes on now or after a replacement, and the capacity of the electrical service, which a licensed electrician confirms before anything is designed.

What we will not tell you about your Vienna project

No production figure, no payback year, no incentive percentage and no equipment warranty term. Those depend on your roof, your bills, your tax position and programmes that change — and a number published before anyone has measured your roof is a guess. Your specialist puts the real ones in writing after the free assessment, and tells you to confirm anything tax-related with your own tax adviser.

Permit authority and code requirements are summarized for general guidance and can change; we confirm the current requirements for your specific parcel before work begins. Nothing on this page is tax advice.

Good · Better · Best

Three scopes for a Vienna roof

We tier the work, not the equipment, and there is no price on this page because there is no honest one to give before someone has been on your roof.

Good · Roof-Ready

Solar-Ready Roof

Scoped per project

The right answer when the roof has years left in it but nobody has actually looked.

Better · Roof + Array

New Roof and Rooftop Solar

Scoped per project

One contract for the roof and the array, so nobody gets to blame the other trade.

Best · Whole Envelope

Whole Envelope and Solar

Scoped per project

Cut the load first, then size the system — the cheapest kilowatt is the one you never needed.

See what each scope includes →

Vienna Solar FAQ

Straight answers

Do I need a new roof before adding solar in Vienna, VA?

Often, and it is far cheaper to find out first. A rooftop array is designed to stay put for decades, so mounting one on a roof with a few years left means paying to remove it, reroof, and reinstall it. United Developers inspects the roof free, typically within 24 hours, and gives you a photo report of what it actually has left — yours to keep either way. If the roof is fine, we will say so.

Who issues the permit for a solar project in Vienna?

Permits for work here run through Fairfax County Land Development Services. For a rooftop array, expect a building permit for anything fastened to the roof structure and a separate electrical permit for everything downstream of it — the electrical permit pulled by the licensed electrician on the job, which is how Maryland and Virginia jurisdictions generally require it. We confirm the exact permit set for your parcel before anything is filed. Permit authority and code requirements are summarized for general guidance and can change; we confirm the current requirements for your specific parcel before work begins.

Does my Vienna home have the electrical service for solar?

That gets checked before anything is designed, not after. On older Fairfax County housing stock we routinely find undersized service, and if yours is one of them the panel has to be addressed first. A licensed electrician on the job confirms your service capacity and does the electrical work — United Developers holds a home improvement and general contractor licence (MHIC #111971, Virginia DPOR Class A #2705183185), not an electrical licence, and we do not pretend otherwise.

What will solar cost in Vienna, and what is the payback?

We do not publish either figure, here or anywhere else on this site. The cost depends on your roof — its planes, pitch, condition and whether it needs replacing first — and the payback depends on a year of your own electricity bills and on incentive programmes that change. You get an itemised written scope and price after a free on-site assessment. Be wary of any number quoted before someone has been on the roof.

Do you cover all of Vienna?

Yes — the 22180, 22181, 22182 ZIPs and the rest of Fairfax County, plus neighbouring Oakton, Tysons, Dunn Loring, McLean. United Developers works Maryland and Virginia only; our office is at 4915 St Elmo Ave Ste 403, Bethesda, MD 20814.

Your Vienna roof, looked at properly first.

Free inspection, typically within 24 hours, with a full photo report — yours to keep whether or not you ever put a panel on it.

Book My Free Assessment →Call (240) 880-2108

More for Vienna, VA

The roofing work behind the solar, and the rest of what we do here.

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