01Drone Inspection
We fly the roof before quoting. You see every slope, valley and flashing on the estimate.

Full tear-offs, leak repairs, flat roofs and chimneys, done by our own crews with GAF-certified installation and a drone inspection on every job. Serving all 8 North New Jersey counties.



Full replacements and repairs. Both done by our own crews, both photographed from the air.

Full tear-off
Finished HDZ roofComplete roof tear-off and engineering replacement using heavy-duty synthetic underlayments (Stinger/FeltBuster), ice & water shields, ridge ventilation, and GAF Timberline HDZ shingles.
Full removal of existing shingles down to the wooden decking, replacing any compromised wood sheets.
Installation of Stinger & GAF FeltBuster synthetic underlayment for 5x stronger tear-resistance than old felt paper.
Applied in all valleys, eaves, and penetrations to prevent water backup from NJ winter freeze-thaw cycles.
North America's #1 selling shingle with LayerLock technology and WindProven Unlimited Wind Warranty.
Engineered attic intake and exhaust ventilation to lower summer cooling bills and prevent moisture buildup.

Pipe boot reseal
Chimney flashingFast, reliable roof leak diagnostics and structural repair across all North New Jersey towns. Available 24/7 for storm damage, emergency tarping, flashing leaks, and flat roof repairs.
Using thermal/moisture detection to isolate hidden leaks around valley flashing, pipe boots, and chimney junctions.
Immediate response following heavy NJ severe weather, high winds, hail, or fallen tree limb damage.
High-grade silicone coating application over EPDM/modified bitumen flat roofs for 100% waterproof seal (as seen in our photos).
Precision lead & copper step-flashing replacement to prevent recurring water intrusion.
Matching existing shingle color and replacing damaged or rotted underlying plywood decking.

Silicone restoration over EPDM and modified bitumen.

Step flashing, crickets and counter-flashing done right.

Curb-mounted skylights, ridge vents and pipe boots.

Find it, fix it, photograph it. Same-week scheduling.
Every photo below is from a Pro Gen job site. This is the same sequence your roof goes through.
01We fly the roof before quoting. You see every slope, valley and flashing on the estimate.
02Everything comes off, down to the deck. No layering new shingles over old problems.
03Rotted plywood replaced, then ice and water shield at every eave, valley and penetration.
04Heavy-duty synthetic barrier over the whole deck. Your roof is dried-in the same day.
05GAF architectural shingles, ridge vent, cleanup, then a final drone pass you get to keep.
Most residential replacements are torn off, dried-in and shingled within one to two days.
Get an instant budget benchmark for your home based on North NJ labor rates, GAF material pricing, and roof complexity.
Drag the handle. Left is the full tear-off on a large North NJ home. Right is the same roof a few hours later, covered in synthetic underlayment and watertight before the crew went home.


No stock photos anywhere on this site. Every image is a Pro Gen job in North New Jersey.
Chimney reflash
Flat roof coating
Pipe boot sealThat line is on our logo because it is how we run the company. Small, local, and on the roof ourselves.
The people on your roof work for Pro Gen. Same foreman from tear-off to cleanup.
Aerial photos before, during and after, so you never have to take our word for it.
Factory-certified installation, which is what qualifies your roof for the GAF System Plus 50-year warranty.
Shingle, flat, chimney and skylight work. We do not do kitchens, decks or siding.
Four questions. Straight answer. The same call our foreman makes from the ladder.
Dripping, staining, or a wet attic.
Best guess is fine.
Look at every slope you can see.
Granules washing off the shingles.
Answer 4 more to get your verdict.
Pick your town for local roof repair and replacement details, or jump to your county page.
County seat Hackensack · 70 towns served
County seat Newark · 23 towns served
County seat Jersey City · 12 towns served
County seat Morristown · 40 towns served
County seat Paterson · 16 towns served
County seat Newton · 23 towns served
County seat Elizabeth · 20 towns served
County seat Belvidere · 22 towns served
Don't see your town? We still come out. Every North NJ address gets the same crew.
(862) 222-1016Read what your neighbors in Bergen, Essex, Morris, Hudson, and Union counties have to say about Pro Gen Construction.
"Pro Gen did an unbelievable job replacing our 22-year-old roof in Ridgewood. The drone aerial photos they shared showed the Stinger synthetic underlayment installation every step of the way. Cleaned up every single nail!"
"We had a severe roof leak right over our master bedroom during a Tuesday night storm. Pro Gen arrived within 90 minutes, tarped the damage, and completed the permanent repair the next morning. True professionals."
"The 5-step estimate process was smooth and accurate. The price was competitive, and the GAF 50-year warranty gives my family total peace of mind. Highly recommend Pro Gen to anyone in Morris County!"
"Our brownstone flat roof was pooling water. Pro Gen applied a high-solids silicone coating restoration. No more leaks and our top floor is significantly cooler this summer."
"Extremely impressive team. They finished a full tear-off and replacement in a single day. Their knowledge of North NJ building codes and permit processing was top notch."