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New Jersey roofing
Flat & Low-Slope Roofing in New Jersey
A flat roof is not flat — it is a low-slope drainage system. When it leaks, the cause is almost always ponding water, a failed termination, or a penetration detail that was never right.
- Ponding and drainage diagnosed, not ignored
- Heat-welded seams and properly terminated edges
- Common on NJ additions, porches, row homes and two-families
Licensed & insured New Jersey roofing contractor · NJ HIC #13VH12674100
Licensed NJ contractor
#13VH12674100
Licensed in PA & CT
PA192943 · HIC.0698708
Insured & bonded
$2 million coverage + bonded
Years serving New Jersey
10
Google rating
5.0 ★ · 858 reviews
Open 24 hours
7 days a week
GAF Certified
25-year workmanship warranty
Why flat roofs fail in New Jersey
Standing water plus freeze-thaw is the worst combination a low-slope membrane can face. Water that cannot drain freezes in the seams, works joints open, and finds the deck.
- Ponding from inadequate slope or clogged drains and scuppers
- Open or shrunken seams on aged membrane
- Failed parapet, coping and wall terminations
- Punctures from foot traffic and rooftop equipment service
- Blistering and ridging from trapped moisture
- Deteriorated pitch pockets and equipment curbs
Systems we install
For most New Jersey residential low-slope sections and small commercial roofs, single-ply is the right value. Where the roof takes traffic or complex geometry, modified bitumen often wins.
- TPO — reflective, welded seams, strong value for larger areas
- EPDM — durable rubber membrane, excellent flexibility in cold cycling
- Modified bitumen — multi-ply toughness for traffic and tight details
- Liquid-applied flashing for complex penetrations
- Tapered insulation to build slope where the deck has none
Pitched-to-flat tie-ins
Rear additions, porch roofs and dormer decks create the single most leak-prone joint on a New Jersey home: where shingles meet membrane. It needs a designed transition with proper membrane run-up under the shingle course, not a smear of mastic.
What drives the cost
We do not publish a single price for this work, because an honest number depends on the roof in front of us. These are the factors that actually move it:
- Area and access
- Rooftop access and material staging on row homes and city lots.
- Insulation and tapering
- Building slope where none exists adds material and labor.
- Existing layers
- Old built-up roofing tear-off and disposal is heavy work.
- Detail count
- Drains, scuppers, curbs, parapets and skylights drive the labor.
Timeline
- 01SurveyDrainage mapping, moisture check, detail inventory.
- 02ScopeRepair, restoration or replacement with expected service life.
- 03InstallTypical residential low-slope sections: one to two days.
- 04QASeam and termination verification, drain flow test.
Warranty and credentials
Two separate protections apply to this work: the manufacturer's material coverage and Done Rite's 25-year workmanship warranty. Done Rite is a GAF Certified roofing contractor, licensed in New Jersey (HIC #13VH12674100), Pennsylvania (#PA192943) and Connecticut (#HIC.0698708), and carries $2 million in insurance coverage plus bond.
Reviewed by
Technical accuracy of this page is reviewed by Done Rite's lead roofing estimator.
Current offers
Offers you can apply to this project
Savings you can use on this work right now. Each offer is one-time and cannot be combined with another — mention our website when you call or book.
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Proudly serving those who served — any roofing service.
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Real projects
Recent New Jersey roof projects
A look at recent New Jersey roofs we have worked on: the town, the roof system, the problem the homeowner called about and how we solved it.
Trenton, NJ · Mercer County
TPO single-ply low-slope replacement
- Problem
- Ponding water on a row-home roof with a clogged interior drain and shrunken seams at the parapet termination, leaking into the top-floor rear bedroom.
- Solution
- Tear-off to deck, tapered insulation to re-establish slope toward the drain, heat-welded TPO membrane, new drain assembly and clamping ring, fully terminated and coped parapet.
How it works
Five steps, no surprises
The roofing complaints we hear most are about surprises — hidden charges, vanishing crews, verbal promises. Our process exists to remove them.
- 01
Call or request an estimate
Tell us what the roof is doing. Emergencies get triaged first.
- 02
Inspection with evidence
Roof and attic assessed and photographed. You see what we see.
- 03
Written options
Repair and replacement priced separately, with every component named.
- 04
Installation
Permits handled, property protected, most homes finished in one to three days.
- 05
Walkthrough & warranty
Photo record of completed work, cleanup verified, warranty documentation issued.
Answers
Flat & Low-Slope questions New Jersey homeowners ask
Keep exploring
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Next step
Get a straight answer about your roof
One inspection, photo evidence, written options. Repair if repair is right, replacement if it isn't.