Metal roofing
Architectural shingles
Tile roofing
GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Installation Across Bay Harbor Islands
Roof installation in Bay Harbor Islands isn’t like roofing work anywhere else in South Florida. The town sits between Biscayne Bay and the Atlantic, which means your roof takes salt-laden wind from two directions, heavy summer rain, and the full force of hurricane season. We know Bay Harbor Islands because we work here constantly, from the mid-century homes off East Broad Causeway to the low-rise condos along 96th Street. You don’t need a roofer who “figures it out” when they arrive. You need one who already knows what a Miami-Dade HVHZ wind-load review requires before the first tile comes off. Call (850) 753-2996 and we’ll walk you through exactly what your roof needs and what it will cost, in writing, before anything starts.
Why Mercer Roofing Co Miami Is Bay Harbor Islands’s Preferred Roof Installation Company
Homeowners in Bay Harbor Islands keep choosing Mercer Roofing for a straightforward reason: we do the paperwork right and we show you who’s coming. Every technician we send to the islands is background-checked, identity-verified, and dispatched under the Threshold Verified standard. Before a crew member steps onto your property, you receive their name and photo. When they knock, they’re in a clean, marked uniform with a photo ID badge. If you’re home alone, or your kids are there after school, or you’ve had a bad experience with a stranger at the door, that’s the difference between dreading the appointment and being able to relax.
Grant Whitlock leads our Miami roofing team, and he’s the person who makes sure every Bay Harbor Islands job meets the town’s unusually strict documentation requirements. We’re part of the Threshold Group family, founded in 2000, and every independent location is contractually held to the Threshold Verified standard. That means no unvetted subcontractors, no mystery crews, no surprises about who’s on your property.
We’ve earned a strong local reputation across Bay Harbor Islands specifically because our crews understand low-slope and flat-roof systems, which make up a large share of homes here. When a homeowner on 91st Street calls about ponding water on a flat roof, we already know it’s likely an undersized scupper or a clogged drain, not just the membrane. That local knowledge means faster diagnosis, fewer unnecessary repairs, and a written price before any work begins.
Styles & brands we work with
Roof Flashing Installation in Bay Harbor Islands
Roof flashing installation in Bay Harbor Islands matters more than most homeowners realize, because the HVHZ wind-load code requires every penetration, valley, and transition to be flashed with components that carry a Miami-Dade County Notice of Acceptance. Flashing is the folded metal that seals the joints where your roof meets a wall, chimney, skylight, or pipe. When wind pushes rain sideways off the bay, it’s the flashing that keeps water from working its way under the shingles or membrane. A typical flashing replacement or new installation in Bay Harbor Islands runs $450 to $1,800 depending on how many penetrations and what metal is specified, with full perimeter flashing on a flat roof often running $2,500 to $4,500.
When Flashing Fails on Island Homes
On many Bay Harbor Islands homes built in the 1950s and 1960s, the original flashing was galvanized steel that has rusted thin after sixty years of salt air. We see it failing at roof-to-wall intersections long before the roofing material itself looks worn. Once that metal rusts through, water travels down the wall assembly and shows up as ceiling stains months later.
What a Compliant Flashing Job Includes
Mercer Roofing installs flashing with NOA-rated fastening patterns and sealant, then documents each component so the permit record is clean. That documentation is what the town’s building department checks, and it’s what your insurance company may ask for if a storm opens a claim. Written price comes first, every time.
TPO Roofing Installation in Bay Harbor Islands
TPO roofing installation in Bay Harbor Islands is one of the most common systems we put on the flat and low-slope roofs that make up so much of this town’s housing stock. TPO is a white, heat-reflective single-ply membrane that’s welded at the seams and works well for condos and mid-century homes where barrel tile isn’t being matched. On a 1,200 to 1,800 square foot flat roof in Bay Harbor Islands, a full TPO installation with new insulation, cover board, and NOA-rated adhesion typically runs $9,500 to $16,000. Smaller sections or re-covers run less, but a full tear-off with decking repair is where the price heads upward.
Why TPO Makes Sense on the Islands
The white membrane reflects a meaningful share of the South Florida sun, which reduces heat gain on homes where the roof is directly above living space. It also handles the ponding that happens after heavy thunderstorms, provided the scuppers and drains are sized correctly. We inspect drainage before we quote, because a new TPO roof with old, undersized drains will still pond water, and that’s a failure waiting to happen.
TPO and Hurricane Season
TPO made the short list for Bay Harbor Islands for a reason: when it’s installed with proper NOA-rated wind uplift patterns, it stays put in high wind. The seams are heat-welded, not glued, which means a properly installed TPO roof performs well under the HVHZ testing requirements. We match the membrane, insulation, and fastening pattern to the specific product approval, and we document every layer.
Trusted Brands We Service in Bay Harbor Islands
Mercer Roofing installs and services roofing systems from manufacturers that hold Miami-Dade County product approvals, including GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. For Bay Harbor Islands homeowners, that matters because the town’s building department will ask for the NOA on every component, and these manufacturers have that paperwork on file. We also know which suppliers in South Florida stock the barrel tiles and flat-roof components you’ll need when a repair or match has to happen quickly. That means less time waiting on special orders and more time getting your roof sealed before the next storm.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Installation Problems We See in Bay Harbor Islands Homes
- 1950s barrel-tile cracking: Original barrel tiles on homes near East Broad Causeway crack under decades of thermal expansion and contraction. Water gets through the tile long before the roof looks damaged, destroying the underlayment underneath.
- Undersized drainage on flat roofs: Flat and low-slope roofs with scuppers that are too small or drains that clog with island debris pond water after heavy summer rain. That standing water finds seams and penetrations, causing leaks that are easy to misdiagnose.
- Non-compliant flashing and fastening patterns: Some installers use generic flashing or non-NOA fastening patterns to cut cost. Those roofs can fail Miami-Dade HVHZ uplift testing, and the homeowner often doesn’t know until a storm strips the membrane and the insurance claim is denied for non-compliance.
- Salt corrosion on metal edges and decking: Salt-laden air from the bay and the Atlantic corrodes metal drip edges, fasteners, and sometimes the decking below. We replace rotted plywood and install corrosion-resistant metals that are specified for coastal exposure.
Pricing for Roof Installation in Bay Harbor Islands, FL
A full roof installation in Bay Harbor Islands typically runs $12,000 to $35,000, depending on system, size, and what’s underneath. Barrel-tile replacements that match historic character can push higher because of the specialized tile sourcing. TPO flat roofs on condos and mid-century homes usually land between $9,500 and $16,000. Flashing work, if it’s a separate repair rather than part of a full install, runs $450 to $4,500 depending on scope. The biggest variables are decking condition, drainage corrections, and whether your home needs NOA-matched materials from the start. Every Mercer quote is line-item, written, and fixed before we order the first delivery. Call (850) 753-2996 for your free estimate.
We Also Serve Cities Near Bay Harbor Islands
If you’re in Miami, Miami Gardens, Fountainebleau, or Tamiami, our Roof Installation team covers those areas too. But this page is for Bay Harbor Islands, where the wind-load rules, the drainage challenges, and the housing stock are its own thing. You can read more about our Roof Installation in Bay Harbor Islands service area right here.
Serving Bay Harbor Islands, FL - Our Local Coverage Area
We’re based in the Bay Harbor Islands area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Roof Installation in Bay Harbor Islands
Every roof installation in Bay Harbor Islands must meet Miami-Dade County High-Velocity Hurricane Zone wind-load standards. That means each component, from the underlayment to the fastening pattern to the flashing, must have a Miami-Dade County Notice of Acceptance that matches the specified wind uplift and missile-impact requirements. Bay Harbor Islands is in the HVHZ, which is a more demanding standard than what’s required in some nearby non-HVHZ municipalities. A compliant roof includes documentation for every layer, which your building department reviews before final inspection. If you’re comparing quotes, ask each contractor to list the NOA numbers on the bid. Most can’t produce them. We include ours as standard practice. Call (850) 753-2996 to get a quote that actually shows you the paperwork.
Yes, in nearly every case, flashing replacement on a Bay Harbor Islands roof requires a permit because it’s part of the roofing assembly regulated under Miami-Dade HVHZ codes. The town’s building department wants to verify that the new flashing meets the same wind-load and product approval requirements as the rest of the roof. If you’re doing flashing work as part of a larger installation, it’s included in that permit. If it’s a standalone repair, Mercer Roofing pulls the permit, schedules the inspection, and keeps the record clean for your insurer. Call (850) 753-2996 and we’ll tell you exactly what your specific project requires before you spend anything.
A roof that’s documented as compliant with Miami-Dade HVHZ standards is easier to insure and may qualify you for wind mitigation discounts, because your insurer can see proof that the roof met the product approval and fastening requirements. Bay Harbor Islands homeowners with clean permit records and NOA-matched assemblies are in a stronger position at renewal and when filing a claim after a storm. A roof that was installed without that documentation can be denied on a wind claim, and the premium savings you might have earned are gone. We hand every customer a complete permit record and NOA documentation at the end of the job. That’s not an add-on, it’s part of the installation. Call (850) 753-2996 to schedule your free estimate.
Sometimes, but not always. Many 1950s barrel tiles on Bay Harbor Islands homes have thermal cracks that don’t show until the tile is handled, and even sound-looking tiles may have spent sixty years absorbing salt and sun. If the tiles are in solid condition, we can carefully remove and re-set them over a new NOA-rated underlayment. If they’re cracking or too fragile, we source matching replacements from specialized South Florida suppliers so the roof keeps its original character. A tile-by-tile assessment is part of every Bay Harbor Islands barrel-tile quote we write. Call (850) 753-2996 and we’ll take a look before you commit to anything.
A compliant Bay Harbor Islands roof quote includes NOA-matched underlayment, fastening patterns, flashing, and drainage corrections, plus the permit, the inspection, and the final documentation package. A cheap quote often skips the drainage fix, uses non-NOA flashing, and leaves you with no documentation. Then the town’s inspector won’t sign off, or a storm claim gets denied because the assembly doesn’t match what was specified. We write every quote as a fixed, line-item price before work starts, and our 365-Day Done Right Promise means if something isn’t right within a year, we make it right. Call (850) 753-2996 for your free, written estimate.
Written by Grant Whitlock, Owner at Mercer Roofing Co Miami, serving Bay Harbor Islands and surrounding South Florida communities.