South Philadelphia’s tightly packed row homes — many built 80 to 120+ years ago — sit atop some of the oldest gas infrastructure in the city. PGW reports that more than half of its 3,000 miles of gas mains are classified as aging “at-risk” lines, and South Philly’s narrow streets and shared walls mean a single gas leak can threaten an entire block.
The dense construction of South Philadelphia row homes creates unique risks: gas can migrate through shared walls, basement connections, and aging lateral lines that connect individual homes to the street main. What starts as one home’s problem can quickly become the block’s emergency.
Source: HEET, 2021–2022
WHYY, 2024
Sulfuric mercaptan odor — your primary alert. In row homes, check basements first
Sounds near gas lines, appliances, meters, or shared basement walls
Dead vegetation in small yards, bubbling in standing water, frost on exposed pipes
Headaches, nausea, dizziness — especially if neighbors are experiencing symptoms too
If you suspect a gas leak in your Philadelphia home or business, act fast but calmly. These steps could save lives:
In row homes, a spark can ignite gas that's migrated through shared walls
No stoves, cigarettes, candles, or matches
Gas line work in row homes affects neighboring properties
Open doors/windows as you exit. Alert neighbors in connected row homes
Report from across the street or away from the block
PGW at 1-888-427-5325, then us at (484) 436-4190
>PGW-certified detection & repair — South Philadelphia 24/7
Our Recommendation: Every South Philly row home should have CO detectors on every floor — especially in basements and near sleeping areas. Call (484) 436-4190 to schedule an inspection.
Trace-level detection through basements, shared walls, and crawl spaces
See behind plaster walls and under floors — critical in row homes where demolition is costly
Pinpoint exact locations in pressurized lines running between shared structures
When your family’s safety is on the line, experience and certification matter. Here’s what sets Precision Plus Plumbing apart as Philadelphia’s preferred gas leak detection company.
Authorized to work with Philadelphia Gas Works systems. PGW gas line approval assistance included
25+ years working in South Philly's unique row home infrastructure — we understand shared walls, laterals, and aging mains
More gas leak repairs than any local competitor. Deep experience with South Philadelphia's specific neighborhoods
Nextdoor-verified reviews from real South Philly homeowners. 250+ verified ratings
Gas leaks don't wait. Same-day guarantee for all of South Philadelphia
Permits are not required for gas leak repairs. Upfront pricing, no hidden fees, no surprises
Saxon DaveTrustindex verifies that the original source of the review is Google. Great service, very professiona,l on time, cleaned up afterwards, very respectable. I would definitely be calling him for all my needs. Before I go to anybody else for anything, i will call Precision Plus first. Five out of five stars for me Mary WorthyTrustindex verifies that the original source of the review is Google. Precision Plus Plumbing came out the next day and quickly got to work. They showed real care for our children’s well-being and handled everything with professionalism and compassion. Highly recommend! Keisha Jackson-SmithTrustindex verifies that the original source of the review is Google. Derrick was very efficient and professional. He explained what needed to be done in detail and completed the job in a timely manner. I am very pleased with the result. Brian FeasterTrustindex verifies that the original source of the review is Google. Derrick from Precision Plumbing, performed mold testing, was quick, professional and efficient! Beverly BoldenTrustindex verifies that the original source of the review is Google. Derrick was quick assessing my issues problem solved in no time great job thanks so much Wayne TuckerTrustindex verifies that the original source of the review is Google. QUALITY 5 STARS Dave WatsonTrustindex verifies that the original source of the review is Google. Great experience! Quick turnaround on a Saturday. Fixed the issue and was a pleasure to work with.
Founder & Master Plumber
Since opening our doors in 1999, Precision Plus Plumbing has had one goal in mind: save busy homeowners time and frustration.
When you hire Precision Plus, you’re benefiting from a proven local business that knows your home, is familiar with older plumbing, and will educate you on what caused your problem — while discussing options on how to prevent them from happening again.
“We made the decision to provide clients with a unique experience that busy homeowners would be proud of. Our techs show up on time, do not smell like the sewer, and can resolve most problems on the initial service call.”
What started as a commitment to better service has grown into the area’s most trusted name for emergency plumbing, water damage restoration, and mold services — serving Pennsylvania, Delaware, and New Jersey.
Most repairs completed same day — typically within a few hours.