New London Commercial Roofing Contractor
New Roofs Over Old Decks Behind Brick Parapet Walls
As a New London commercial roofing contractor, we tear off worn low-slope roofs on downtown and waterfront buildings and install new TPO, EPDM, and metal systems.
New London Commercial Roofing for Older Downtown Buildings
Most New London commercial roofing work we see downtown sits on brick buildings with flat roofs hidden behind parapet walls. Many of those roofs carry two or three old layers, so the first job is finding out how deep the tear-off goes and what the deck looks like underneath.
Tight streets shape the schedule as much as the roof does. Material lifts, dumpster spots, and debris chutes get planned with the property manager before tear-off starts, and each open section is sealed watertight before the crew leaves for the night.
- Core cuts count the old layers and check the insulation for water
- Parapet walls get new counterflashing and cap metal where mortar has failed
- Rotted wood or rusted steel deck is replaced before insulation goes down
- Tapered insulation moves water to existing drains and scuppers
Commercial Roofing Problems on New London Buildings
Older downtown roofs tell you they are done in a few predictable ways. Here is what tenants see inside and what we usually find above it.
Stains Along The Top Of Exterior Walls
Brown streaks near the ceiling line on a brick wall point to water getting in where the roof meets the parapet wall.
Open Base Flashing At The Parapet
Old membrane pulls away from the wall as it shrinks, and the counterflashing above it lets rain run behind. A new roof ties fresh base flashing into the wall with new counterflashing.
Soft Spots Felt On Upper-Floor Ceilings
Sagging tiles or a spongy feel when someone walks the roof usually means insulation has soaked up water over several seasons, often under more than one roof layer.
Wet Insulation Between Old Layers
Water trapped between layers cannot dry out. We remove every wet layer down to the deck so the new insulation and membrane start dry.
Drips Near Interior Columns And Drains
Leaks that show up around a column or a roof drain line often trace back to the drain bowl, where older roofs settle and hold a ring of standing water.
Settled Drains And Ponding Rings
New drain inserts, sump pans, and tapered insulation bring the roof surface back to the drain so water leaves the roof after a storm.
What New Commercial Roofing Fixes in New London
A full replacement on an older downtown building fixes problems that patches keep chasing, and it resets the roof for the next tenant.
One Dry Assembly From The Deck Up
Tearing off every old layer lets us see the deck, fix it, and build the roof back with dry insulation, a cover board, and one membrane. Leaks stop wandering between layers, and the next roof inspection starts from a clean, documented surface instead of three decades of patches.
Fresh Flashing At Every Wall
Parapets, curbs, and chimneys all get new base flashing tied into the membrane, which is where older downtown roofs fail first.
Better Drainage To Old Drains
Tapered insulation and crickets steer water to the drains the building already has, so standing water stops sitting against seams for days.
Room For Rooftop Equipment Changes
Curbs for new units and exhaust fans can be framed and flashed during replacement, before a tenant fit-out cuts holes in a brand-new membrane.
Commercial Roofing Systems We Install in New London
Each building gets the system that fits its slope, equipment, and use. These four cover nearly every commercial roof in the city.
TPO Roofing
White TPO with welded seams suits office floors and retail spaces that run air conditioning, and it flashes cleanly around the units that crowd many downtown roofs.
TPO Roofing in Groton
EPDM Roofing
Black EPDM fits older roofs full of vent pipes and small penetrations, since rubber flashings wrap odd shapes and it handles winter cold without cracking.
EPDM Roofing in Groton
Industrial Roofing
Warehouses and service buildings near the water carry heavier equipment and foot traffic, so we add walkway pads, raised curbs, and tougher membrane where crews work.
Industrial Roofing in Groton
Commercial Metal Roofing
Standing-seam metal works on sloped additions and garages, and a framed metal retrofit can cover a tired low-slope roof when the structure can carry it.
Commercial Metal Roofing in GrotonWater Coming Through a New London Ceiling?
Leaking Now
Call us and tell us where the water shows up and how many floors sit below the roof.
Call UsPlanning A New Roof
Planning a replacement before the next lease? Send the address and we will set up a roof inspection.
Get A Free EstimateHow a New London Roof Replacement Moves
Downtown jobs follow a set order so the building stays dry and the street stays open.
- ROOF WALK
Inspect Your Roof
Core cuts show how many roof layers sit on the deck and whether the insulation is wet. We photograph parapets, drains, and curbs so the written scope matches what is really there.
- STAGING
Plan Lifts And Street Access
Crane or lift spots, dumpster placement, and chute locations are set with the property manager, along with any city permits the work needs.
- TEAR-OFF
Remove Old Layers By Section
Crews strip one section at a time down to the deck and only open what can be closed again before the end of the workday.
- DECK + DRY-IN
Repair The Deck And Insulate
Damaged deck boards or panels are replaced, then tapered insulation and cover board go down so water runs toward the drains.
- FLASH + CLOSE
Install Membrane And Flash The Walls
Membrane seams are welded or taped, parapet and curb flashings are finished, and edge metal and cap flashing go on last.
Towns Near New London We Cover
Have a building just outside the city? call us or send us a message and tell us where it is. These nearby towns are on our regular list.
New London Commercial Roof Replacement Questions
Short answers to what downtown and waterfront owners ask before a new roof goes on.
How many roof layers can stay on a New London building?
Usually none should stay once the roof is being replaced. Building codes limit how many roof coverings can stack up, and old layers often hide wet insulation. We core the roof first, count the layers, and plan a full tear-off when moisture or the layer count calls for it.
What happens to the deck during roof replacement on older downtown buildings?
It gets inspected once the old layers come off. Rotted plank, cracked concrete, or rusted steel deck is cut out and replaced before any insulation goes down, and those repairs are priced by the square foot so you can see the cost of each one.
Do you install and replace commercial roofs in New London?
Yes. We replace flat roofs on older downtown buildings behind parapets, along with roofs on warehouses and waterfront properties. Because many of these roofs carry several old layers, we check the deck and tear-off depth before recommending TPO, EPDM, or metal.
Can tenants stay open while a New London roof is replaced?
In most cases, yes. Work moves section by section, each area is closed watertight before the crew leaves, and noisy tear-off can be timed around business hours when the property manager asks for it.
Book New London Commercial Roofing Work
Send the address or call us, and we will walk the roof, core the old layers, and write up a replacement scope you can compare.