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Flat & Commercial Roofing in Connecticut

Flat & Commercial Roofing in New London

A guide to New London's 11 flat and commercial roofing contractors: what the work involves, what to check before hiring, and how our rankings are built.

Flat and low-slope commercial roofing is a different trade from residential shingle work. It covers membrane systems like TPO, EPDM, and modified bitumen, along with built-up roofing, coatings, and the drainage and flashing details that keep water off warehouses, retail strips, multi-unit buildings, and office roofs along the New London waterfront and inland business corridors. We've identified 11 contractors in the area who handle this type of work, ranging from small crews doing repairs and coatings to larger outfits that take on full tear-off and re-roof projects.

Before hiring, ask about the specific membrane systems a contractor installs and whether they're a manufacturer-certified installer, since that certification often extends the warranty coverage on materials. Get a written scope that spells out insulation, drainage slope, flashing at parapets and penetrations, and cleanup. Commercial jobs should include proof of liability insurance and workers' comp, and a contractor who's used to coordinating with property managers or working around active businesses is worth more than one offering the lowest bid alone.

Our scoring weighs licensing and insurance status, the range of systems a company actually installs, how they handle warranty and follow-up work, and patterns in customer feedback specific to flat roof projects rather than general remodeling reviews. For the full ranked breakdown of every roofing contractor we cover in New London, including this category, see our best roofing contractors guide. Details on how we score and verify each business are on our methodology page.

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All flat & commercial roofing in New London, ranked by score and relevance

11 businesses, scored on recent reviews. The order weighs each business's overall score by how much of its reviewed work is flat & commercial roofing, so a lower-scored specialist can rank above a higher-scored generalist.

SERVPRO of New London
#1
85

SERVPRO of New London

5.0(27)✓ Google-verified

Fast emergency response with named technicians handling projects from start to finish. Team manages insurance claims, coordinates multi-week restorations with frequent updates, and restores homes to pristine condition. Staff accommodate customer schedules and wait for arrivals. Reviews emphasize water damage and mold remediation more than roofing.

24/7 Emergency RoofingRoof Inspection & Insurance ClaimsFlat & Commercial Roofing
AM PM Roofing
#2
82

AM PM Roofing

4.7(72)✓ Google-verified

AM PM Roofing completes most jobs in a single day with Paul leading hands-on inspections and fair pricing. Reviewers consistently praise the crew's efficiency, cleanup, and responsiveness, though two older complaints note a no-show appointment and unresolved siding staining after a roof replacement.

Roof RepairFlat & Commercial RoofingGutters & Siding
SJM Roofing
#3
77 low data

SJM Roofing

4.6(30)✓ Google-verified

Clear explanations from Shaun, punctual crews, and thorough cleanup earn consistent praise in visible reviews. Averaging 4.6 stars on 30 reviews; negative reviews (about 10% of total) are not shown here.

Roof RepairGutters & SidingRoof Inspection & Insurance Claims
The Superior Group - Roofing Company
#4
71 low data

The Superior Group - Roofing Company

4.9(16)✓ Google-verifiedPublishes prices

Nearly all recent jobs were completed to high standard with attentive crews who explain work upfront and meet deadlines. One older complaint noted a missing quote, but 15 of 16 reviews praise professional staff, fair pricing, and clean job sites across residential and commercial roofing, coating, and insulation work.

Roof Inspection & Insurance ClaimsRoof Replacement & InstallationRoof Repair
T.J. Nelson Home Improvements
#5
67 low data

T.J. Nelson Home Improvements

5.0(13)✓ Google-verified

Five-star rated across 13 Google reviews for reliability, fair pricing, and consistent workmanship. No critical feedback available for perspective.

Roof RepairGutters & SidingRoof Replacement & Installation

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DC Property Management and Maintenance
#6
61 low data

DC Property Management and Maintenance

5.0(3)✓ Google-verified

Reviews consistently praise on-time completion and fair pricing with quality work. Owner Daryl responds promptly to issues. Limited evidence (3 Google reviews, all 5-star, all from 3 years ago).

Roof Replacement & InstallationFlat & Commercial RoofingRoof Repair
Chopa Contracting Services LLC
#7
58 low data

Chopa Contracting Services LLC

5.0(4)✓ Google-verified

Both available reviews praise expert leak detection and commercial flat roofing, along with competitive pricing. The reviews are nine years old, so current service quality is unclear.

Roof RepairFlat & Commercial RoofingRoof Replacement & Installation
Thermalfit LLC
#8
56 low data

Thermalfit LLC

5.0(2)Publishes prices

Two 5-star reviews praise quality work and competitive pricing, though evidence is limited. One reviewer noted premium quality at fair cost; another highlighted excellent craftsmanship. The company states it has operated since 1990 with industry certifications.

Roof RepairGutters & SidingFlat & Commercial Roofing
Roof,siding,1981
#9
64 low data

Roof,siding,1981

3.0(2)✓ Google-verified

One five-star reviewer praised professional work and fair pricing, but the 3.0 average from just two reviews indicates mixed customer experiences. Evidence is limited.

Roof RepairGutters & SidingFlat & Commercial Roofing
Calles roofing
#10
50 low data

Calles roofing

5.0(1)

Not enough recent reviews yet to synthesise a reliable sentiment read for this business.

Roof RepairGutters & SidingFlat & Commercial Roofing

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Common questions about flat & commercial roofing

How much does flat or commercial roof replacement cost in New London?
Costs vary widely by system and building size, but flat and commercial roofing is typically priced per square foot installed, factoring in tear-off, insulation upgrades, and drainage work. A small coating or repair job runs far less than a full TPO or EPDM replacement on a large warehouse roof, so get itemized quotes from at least two or three contractors before comparing totals.
How long does a flat roof membrane last before it needs replacing?
Most TPO and EPDM membranes are rated for 20 to 30 years, while built-up and modified bitumen roofs often run 15 to 20 years with proper maintenance. Actual lifespan depends heavily on ponding water, foot traffic, and how quickly small punctures or seam failures get repaired.
What should I expect during a commercial roof inspection or repair visit?
A thorough contractor will check seams, flashing around HVAC units and vents, drain and scupper condition, and any areas of standing water, then document findings with photos before quoting repairs. For active businesses, ask how they'll schedule the work to limit disruption and whether they'll coordinate access with your property manager.
How can I tell if a flat roofing contractor does quality work?
Look for manufacturer certification on the specific membrane system they're installing, since that usually unlocks a stronger warranty than a standard installer warranty alone. Ask to see photos of completed commercial jobs, confirm they carry current liability insurance, and check whether they offer a post-installation walkthrough or maintenance plan rather than disappearing after the crew leaves.

Last updated 2026-09-25