Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Installation Across South Bay
A full roof installation in South Bay typically runs $9,800 to $18,500 for a standard single-family home, with architectural shingle tear-off and replacement landing between $6.50 and $8.75 per square foot. Most South Bay homes take two to four days from tear-off to final inspection, depending on decking repairs and the number of shingle layers we’re removing. We schedule free written estimates across South Bay within a few business days, and our crews arrive with every technician’s name and photo sent to you before they step onto your property. Call (743) 200-8347 to set that up.
Why Mercer Roofing Is South Bay’s Preferred Roof Installation Company
South Bay’s housing stock is different from what you’ll find east of the dike, and we treat it that way. The 1950s and 60s concrete-block homes off Palm Beach Road and around the lake side of Main Street carry stacked shingle layers that coastal crews rarely see. Our Roof Installation team knows what’s under those layers before we start pulling nails, because we’ve torn off enough of them here to know the pattern: failed underlayment, rotted decking on the north slope, and pipe boots corroded clean through.
Every South Bay job starts with a written price. Not a verbal ballpark, not a handshake number. A line-item quote you can hold onto before any work starts. That’s the Mercer way, and it’s why homeowners who’d rather know exactly who’s at their door and exactly what they’re paying keep calling us back. We’re part of the Threshold Group family, founded in 2000, and every technician who steps onto a South Bay property is background-checked, identity-verified, and photo-badged under the Threshold Verified standard.
Grant Whitlock leads our team with one standing rule: no surprises. Not on the invoice, not on the job site, and certainly not at the front door.
Roof Flashing Installation in South Bay
Roof flashing installation in South Bay is the single highest-impact upgrade we recommend on the lake-facing side of a home, because Lake Okeechobee squalls drive wind-driven rain upslope in ways that standard flashing laps were never designed to handle. Flashing is the metal at every roof penetration: the pipe boots, the valley lines, the chimney base, the wall-to-roof transitions. When that metal fails, water doesn’t just sit on your shingles. It tracks under the underlayment, and from there into the decking.
A full flashing replacement on a typical South Bay ranch runs $1,400 to $3,200, depending on how many penetrations the roof carries and whether we’re replacing corroded boots or rebuilding step flashing at sidewalls. Most flashing-only jobs finish in a single day. When we install flashing, we set it to South Bay’s specific wind and water exposure, which means we treat the north side differently than the south side. That’s not standard practice. It’s what this lake demands.
Lake-Side Penetrations
Pipe boots on north-facing slopes in South Bay fail faster than the boots on any other exposure. The lake’s year-round evaporation saturates the air, and that moisture sits on the metal continuously. We replace standard boots with heavier-gauge materials and set ice and water shield around every penetration before flashing goes on. It adds maybe two hours to the job and saves you from the leak that was always going to happen otherwise.
Ridge Caps and Drip Edge
Ridge caps on South Bay homes take direct wind loads off the lake. When they’re nailed instead of set with proper sealant, the wind peels them back and water rides straight down into the attic. We set ridge caps with code-compliant fastening patterns and inspect every drip edge fold before we call the roof done.
TPO Roofing Installation in South Bay
TPO roofing installation in South Bay is a practical choice for flat and low-slope sections of local homes, particularly the carports, additions, and porch roofs that dominate 1960s and 70s concrete-block construction. TPO is a white, heat-reflective single-ply membrane that we heat-weld at the seams, which matters here because the lake’s moisture load makes adhesive-seam systems a liability. A welded TPO seam doesn’t peel under South Bay’s humidity the way older glued membrane does.
TPO installation on a South Bay flat roof typically runs $7 to $10 per square foot, which puts most residential jobs between $4,200 and $8,000 depending on access and whether the existing decking is sound. For homes near the dike, white TPO also cuts rooftop surface temperature during the summer, and that temperature drop translates directly into lower attic heat load.
Flat Roof Transitions
South Bay’s older homes often have a sloped shingle main roof with a flat-roofed carport or screened porch addition. That transition seam is where we see water intrusion first. We flash those transitions with TPO-compatible metal and seal the entire junction before the membrane goes down, so the transition itself never becomes the leak point.
When TPO Beats Shingles Here
If a South Bay roof slopes less than 2:12, shingles stop working. They shed water by gravity, and a low slope lets water pool. That’s when TPO becomes the right product, not an upsell. We’ll tell you honestly on the estimate whether your roof qualifies for shingles or needs membrane, and the written quote will show exactly why.
Trusted Brands We Service in South Bay
We install and repair the manufacturer-recognized shingle brands South Bay homeowners actually ask for, including GAF, Atlas, and Tamko. That matters for two reasons. First, your shingle’s wind warranty only stays intact if the product was installed to the manufacturer’s published nailing and fastening schedule, and we follow those specs exactly. Second, if the insurer asks for documentation that the roof meets Palm Beach County’s wind load requirements, your paperwork shows a recognized product with a documented install. We keep common GAF and Atlas colors stocked with our South Bay deliveries, so tear-off-to-install doesn’t stall waiting on materials.
Common Roof Installation Problems We See in South Bay Homes
- North-slope flashing failure. Lake squalls track directly over the dike and drive water upslope onto the north face of South Bay homes. Standard flashing laps installed by coastal crews that assume southeast prevailing winds get defeated in the first season, and the leak starts there.
- Stacked shingle layers hiding deck rot. Homes built in the 50s, 60s, and 70s for sugar-cane workers often carry two or three layers of shingles. The top layer can look fine while the underlayment below has failed and the decking is spongy.
- Fastener corrosion from lake humidity. The constant moisture off Lake Okeechobee rots nails and screws faster than the measured corrosion rate anywhere inland. A roof that’s five years old here can have fasteners that look fifteen years old.
- Missing wind mitigation documentation. Re-roofs done decades ago rarely have the permit paperwork or inspection records insurers now require. Without that documentation, homeowners miss wind-mitigation discounts even when the shingles themselves meet current code.
Pricing for Roof Installation in South Bay, FL
Expect to spend $9,800 to $18,500 for a full architectural shingle roof on a standard South Bay home. That range includes tear-off of existing layers, new synthetic underlayment, code-required ice and water shield at eaves and valleys, flashing replacement at penetrations, new drip edge, and all permit and inspection fees. What moves the number is decking repair. South Bay’s older homes hide rotted decking under stacked layers, and if we have to re-deck a north slope, that adds $2.50 to $3.25 per square foot for the affected area. A written estimate before any work starts means you’ll see every one of those numbers in advance. Call (743) 200-8347 and we’ll schedule a free roof inspection and walk you through a line-item quote.
We Also Serve Cities Near South Bay
Mercer Roofing runs crews across the southern Glades, so if you’re in Belle Glade, Pahokee, Wellington, or Royal Palm Beach, we can bring the same written-price, photo-badged service to your door. Roof Installation in South Bay keeps us close to home, but the trucks run the full loop around the lake. Dispatch and scheduling for these areas are coordinated from our South Florida office in Miami.
Serving South Bay, FL - Our Local Coverage Area
We’re based in the South Bay 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 South Bay
Palm Beach County requires new roof installations to meet a 130 mph wind rating under the current Florida Building Code. That means the shingles, underlayment, flashing, and fastening pattern all have to be documented to that rating, not just the shingle product. We file the permit, pass the county inspection, and hand you paperwork that records the rating. Call (743) 200-8347 for a free estimate that spells out exactly what your roof needs to comply.
Lake Okeechobee squalls track over the dike and drive wind-driven rain upslope onto north-facing exposures, which defeats standard flashing laps and saturates the slope. The north side also stays shaded and humid longer, which accelerates fastener corrosion and algae growth. We inspect north-side flashing, pipe boots, and ridge caps first on every South Bay estimate because those are the points that fail first. Our free estimates always include a detailed north-slope inspection.
Yes, most Florida insurers apply a wind-mitigation discount when the roof installation is documented with a permit, a passing final inspection, and a compliance report showing the roof meets current wind load standards. A roof that meets code but lacks that documentation usually does not qualify for the discount. We provide the documentation trail with every South Bay installation. Call (743) 200-8347 and we’ll explain exactly what your insurer will need.
Line-item compare the decking allowance, the underlayment spec, and the flashing scope. A cheaper South Bay quote often prices only the visible surface, excludes decking repair as an extra, and reuses existing flashing and drip edge. A honest quote shows ice and water shield at eaves and valleys, synthetic underlayment, new flashing at every penetration, and a written decking contingency. We give every homeowner a written, line-item price before work starts so you can compare apples to apples.
TPO works on any flat or low-slope roof, including residential carports, porch roofs, and additions that are common on South Bay’s older concrete-block homes. We install TPO on single-family homes when the roof pitch is too low for shingles to drain properly. A TPO roof on a South Bay home typically runs $7 to $10 per square foot, and every seam is heat-welded, not glued. Call (743) 200-8347 and we’ll tell you whether your roof qualifies for shingles or needs membrane.
Written by Grant Whitlock, Owner at Mercer Roofing. Grant leads every South Bay roof installation with the same rule: written prices, documented compliance, and a photo-badged technician at your door.
Call Mercer Roofing at (743) 200-8347 to schedule your free roof installation estimate in South Bay. We’ll send you the name and photo of your technician before they arrive, and you’ll get a written line-item price before any work starts.






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