What a fire sprinkler system costs in Prince George’s County: WSSC water builds, DPIE permits, and the first repairs on the oldest systems in Maryland.

Prince George’s County has required fire sprinklers in new one- and two-family homes since 1992, the first large jurisdiction in the country to do it, which means two things for anyone pricing a system here. The new-construction side runs on the same published table we use statewide, the one on our cost page, with the WSSC meter settled before the permit files. And the repair side is bigger here than in any other Maryland county, because the townhome belts of Bowie, Laurel and Upper Marlboro hold systems past their thirtieth birthday. This piece prices both: the new 13D system on WSSC service, the well build in the rural south, and the repair list a 1990s system is reaching now, with the stamped inspection report called out as the separate line it is.

The number on WSSC service

New construction on public water runs roughly $1.35 to $1.60 per sprinklered square foot. In Prince George’s that is WSSC service, and it covers the infill and subdivision work in Bowie, Laurel, Upper Marlboro and the Largo and Clinton tracts. On that table a 2,400 square foot home typically lands between $3,200 and $3,900 for the system. Each townhome in a row is its own 13D system off its own service, so a row prices per unit. What has to be settled before the number is final is the water: sprinkler demand often calls for a one-inch meter, and the meter and service line get checked against WSSC’s records in the first design pass, before the plan files with the building permit at the Department of Permitting, Inspections and Enforcement. A service upgrade found at plan review is the way a WSSC-county budget breaks. What the meter has to deliver and what happens when it cannot is in our article on WSSC water meters and home fire sprinklers.

The rural south: add the well package

Brandywine, Baden, Aquasco, Croom and the tobacco-country roads between them run on wells, and a well cannot deliver sprinkler demand on its own. A new build there carries a stored-water tank, typically 300 to 500 gallons, and a booster pump, and the package adds roughly $3,000 to $6,000 on top of the per square foot range. The tank needs a floor and a footprint on the plans before the foundation is poured, and the acceptance test adds the pump start and the delivered pressure to what the inspector watches. The whole stored-water arrangement is on our well-water page.

The DPIE permit, and why it does not add to the price

There is no separate sprinkler permit. The sealed 13D drawings file inside the building permit set at DPIE, which has been reviewing residential sprinkler drawings longer than any office in Maryland, so a complete submittal moves. Filed with the first submittal the sprinkler plan costs nothing in time; filed as a revision it costs a review cycle, which on a construction loan has a price of its own. The office sequence and what belongs in the set are in our Prince George’s County fire sprinkler permit guide, and the installation side of the county is on the new construction page.

The 1990s system: what the first real repairs cost

This is the part of the county budget that does not exist anywhere else at this scale. A system from 1992 or 1995 generally has sound piping and worn parts: valves seize, escutcheons crumble, heads get painted through a dozen repaints, and heads from the national recalls of the late 1990s and 2001 are still in ceilings where nobody exchanged them. Head replacement and small repair price in the low hundreds per visit, and most 1990s systems come back to full service on a short repair list rather than a replacement. The visit that sets the list is an evaluation that reads the stamp on every head, checks the valve and the gauge, and writes down what is discontinued and what is recall-era. Which models were recalled and how to tell without unscrewing anything is in our guide to recalled sprinkler heads in Prince George’s County, and what a repair visit involves is on the repairs page.

Two inspections, two lines

A system inspection with a written report prices low hundreds, flat, and it answers the resale, insurer and annual-check question for a Bowie or Laurel townhome. The report DPIE wants at a Use and Occupancy final or a rental license is a different deliverable: the water based inspection form signed and stamped by a fire protection engineer or a technician holding NICET Level III or higher in Inspection and Testing of Water Based Systems, with a hydrant flow test on the same credentials if the property has a private hydrant. A report from a Level II technician gets marked deficient no matter how careful the visit was, and the correction order costs more than the stamp would have. Order the right one for the question you are answering. The towns and who orders which are in our piece on fire sprinkler inspections in Upper Marlboro, Bowie and Laurel, and the stamped report, with the three questions to ask before ordering any inspection, is in the article on the NICET Level III sprinkler inspection Prince George’s County requires.

What pushes a Prince George’s bid toward the top of the range

• A WSSC service upgrade. A meter and line sized for a smaller house on a teardown or infill lot is the one item that moves a new-construction number after the drawings are done. Check it first.
• A well lot in the south. The tank and pump package is a fixed line, not a per foot one, and it belongs in the budget before excavation.
• A long repair list on a 1990s system. Several recall-era heads, a seized valve and crumbling escutcheons in one visit is still repair, not replacement, but it is the top of the repair range.
• The stamped report ordered late.A condition report that DPIE rejects at the U&O means paying for the NICET Level III visit anyway, plus the reinspection.
• Concealed heads. A little per head on a custom build, specified at design rather than swapped in after drywall.

What a fair bid shows you

The per square foot rate and the sprinklered square footage it applies to, the WSSC meter answer, the tank and pump as a separate line on a well lot, the inspection named by type (condition report or NICET Level III stamped form), and a Maryland State Fire Marshal fire protection license number on the page. A bid that is one number with no breakdown cannot be checked against the table. The same table applied to the other WSSC county, with a younger installed base and a different remodel pattern, is in our article on what a sprinkler system costs in Montgomery County, and the full county picture, from the 1992 townhome belts to the Brandywine wells, is on our Prince George’s County page.