Duval County · Metro mixed-era
Home Inspections in Duval County, FL
Home, wind mitigation, 4-point and roof inspections for Duval County. Detailed photo report emailed quickly.
Mon–Sat 8am–6pm · InterNACHI certified, Florida licensed and insured · 20+ years construction and renovation experience
A full home inspection in Duval County covers the roof, structure, electrical, plumbing, HVAC, and every accessible system, and takes two to four hours depending on the size and age of the house. You get a detailed photo report emailed quickly. Call 904-806-7679 to schedule.
- County
- Duval County
- Building stock
- Metro mixed-era
- Median age
- Full spectrum: 1900s–1930s historic districts, a large 1950s–1970s mid-century belt, and continuous 1990s–present suburban growth
- ZIP codes
- 32205, 32206, 32207, 32210, 32217, 32218, 32223, 32224, 32233, 32246, 32250, 32256, 32266
Home inspections in Duval County
Duval County holds more housing variety than the rest of Northeast Florida combined — a hundred years of construction inside one consolidated government, plus three independent beach towns with their own building departments and their own coastal exposure. Inspecting here well means knowing what each era gets wrong, and knowing that a house three miles from the river and a house three blocks from the ocean are not the same inspection at all. Median stock here runs Full spectrum: 1900s–1930s historic districts, a large 1950s–1970s mid-century belt, and continuous 1990s–present suburban growth, which is the single biggest predictor of what an inspection turns up.
We work the county by era and by distance from salt. Pre-1940 historic districts: cast-iron drains, knob-and-tube remnants, balloon framing, galvanized supply. 1950s–1970s mid-century: Federal Pacific and Zinsco panels, aluminum branch wiring, roof decks nailed with smooth-shank nails or staples, missing gable-end bracing. 1978–1995: polybutylene supply and first-generation stucco details. Post-2000: attic duct sealing, truss modification, bath fan termination, and slab-edge grading. On the beaches, add salt corrosion of every metal component and careful documentation of opening protection for the wind mitigation form.
What comes up repeatedly on Duval County inspections
The county's flood exposure comes from the St. Johns and its tidal creeks as much as from the ocean, and it reaches neighborhoods people assume are safe. Permit jurisdiction is a genuine complication — the City of Jacksonville covers most of the county, but Jacksonville Beach, Neptune Beach, Atlantic Beach, and Baldwin permit their own work, and a records search aimed at the wrong department comes back empty and falsely reassuring. Insurance pressure is heaviest on the older mainland stock, where cast iron, polybutylene, aluminum wiring, and obsolete panels are all common 4-point declines. These patterns are consistent enough across this county that they belong on a checklist rather than in the surprises column.
Landmarks nearby
- · St. Johns River
- · Naval Station Mayport
- · Jacksonville Zoo and Gardens
- · Kingsley Plantation
- · Timucuan Ecological and Historic Preserve
- · Beaches Town Center
Neighborhoods served
- · Riverside
- · Avondale
- · San Marco
- · Springfield
- · Mandarin
- · Arlington
- · Ortega
- · Northside
- · Jacksonville Beach
- · Atlantic Beach
- · Neptune Beach
- · Baldwin
Conditions that shape an inspection in Duval County
- Consolidated city-county government covering nearly the entire county
- Four separate municipal building departments at the beaches and in Baldwin
- Local ordinance wind speed demarcation splitting the county at the river and I-95
- Everything from 1900s historic districts to current-year production subdivisions
- Tidal creek flooding reaching deep into inland neighborhoods
We inspect throughout Duval County, including Riverside, Avondale, San Marco, Springfield and Mandarin. If you are near St. Johns River and Naval Station Mayport, you are inside our regular service area. Zip codes covered include 32205, 32206, 32207 and 32210. Call 904-806-7679 to check a specific address.
Inspections available in Duval County
Each page covers that inspection in detail for Duval County specifically — the local building stock, Duval County permitting and insurance, and realistic costs.
Mixed-era metropolitan building stock in Duval County
The widest range of housing age and construction type in Northeast Florida — 1920s bungalows through current-year production builds, sometimes on adjacent streets.
Jacksonville is not one housing market, it is about six of them stacked inside one city limit, and the inspection has to change with the address. A Riverside bungalow and a Bartram Park townhouse do not share a single failure mode. What they do share is that the expensive problems are almost always concealed: piping inside a slab or a wall, wiring behind a finished ceiling, framing under a floor. We sequence a metro inspection by era. If the house dates to the 1920s or 1930s, we are on drains and knob-and-tube. If it is 1965 to 1975, we are at the panel checking for aluminum branch wiring and Federal Pacific. If it is 1980 to 1995, we are chasing polybutylene and first-generation stucco details. Knowing the era tells you where to look first, and that is what 20+ years of construction and renovation experience buys a buyer.
What this building stock produces on an inspection
- Cast-iron drain lines from roughly the 1920s through the 1970s corroding from the inside out and failing under slabs
- Polybutylene supply piping in late-1970s through mid-1990s construction — a common insurance decline
- Aluminum branch circuit wiring in mid-1960s to mid-1970s homes without approved AlumiConn or COPALUM repairs
- Federal Pacific Stab-Lok and Zinsco or Sylvania-Zinsco panels still in service
- Original 1920s–1940s framing with added HVAC and plumbing routed through cut structural members
- Converted garages, enclosed carports, and finished attics with no permit history
- Undersized or overfused electrical services on houses that have been added onto repeatedly
- Gable-end bracing missing in mid-century homes, and roof decks nailed with staples or smooth-shank nails
Need an inspection in Duval County?
Call 904-806-7679 and you reach William Knight directly — the same person who will be on your roof, in your attic and at your panel, and who writes the report afterward.
Mon–Sat 8am–6pm · 20+ years construction and renovation experience · InterNACHI certified, licensed and insured
Duval County: permitting, wind, flood and insurance
Permit records for Duval County are held by City of Jacksonville Building Inspection Division (the Beaches cities and Baldwin run their own building departments).
Most of Duval County permits through the City of Jacksonville Building Inspection Division under the consolidated city-county government, but Jacksonville Beach, Neptune Beach, Atlantic Beach, and Baldwin maintain their own building departments — so a permit search has to be run against the right jurisdiction. Re-roofs, window and door replacements, HVAC and water heater changeouts, panel upgrades, additions, and enclosures all require permits. In older Jacksonville neighborhoods we regularly find converted garages, enclosed carports, and finished attics with no permit record. That is not automatically a deal-killer, but it is a real question for the buyer and for the next carrier.
Duval County is one of the few places in Florida where the wind speed line is written into local ordinance rather than read off a map. For Risk Category II buildings, the ultimate design wind speed is 130 mph east of a demarcation line that runs up the middle of the St. Johns River to I-95 at the Fuller Warren Bridge and then north along I-95 to the county line, and 125 mph west of it. Two houses a few blocks apart can be designed to different numbers. The Florida Building Code puts a site in the wind-borne debris region when it is within one mile of the coastal mean high water line with Vult of 130 mph or greater, or anywhere Vult reaches 140 mph. In Duval that captures Jacksonville Beach, Neptune Beach, Atlantic Beach, and the oceanfront strip — where impact glazing or approved shutters are required on all openings. Most of inland Jacksonville falls outside it, which is exactly why so many mainland homes have unprotected openings and lose the opening-protection credit on a wind mitigation report.
Duval's flood story is river-driven as much as ocean-driven. The St. Johns backs up on a strong onshore wind, and the tidal creeks — Trout River, Cedar, Ortega, Pottsburg — flood neighborhoods well inland of the beach. San Marco, Riverside, and the Northside creek corridors all carry AE zone areas, and a good deal of that housing was built before flood mapping existed.
Insurers writing in Duval commonly ask for a 4-point inspection — roof, electrical, plumbing, HVAC. Requirements vary by carrier, so confirm with your insurance agent, your realtor, or your lender whether a 4-point is needed — we can include it with your inspection. Jacksonville's older housing stock trips 4-point underwriting rules constantly: cast-iron drain lines, polybutylene supply, aluminum branch wiring, and Federal Pacific or Zinsco panels are all common declines. A wind mitigation report on form OIR-B1-1802 documents roof shape, roof deck attachment, roof-to-wall connection, roof covering compliance, secondary water resistance, and opening protection. Roof deck nailing and roof-to-wall straps are usually where a Jacksonville house wins or loses credits.
Design wind speed
Duval County is one of the few places in Florida where the wind speed line is written into local ordinance rather than read off a map. For Risk Category II buildings, the ultimate design wind speed is 130 mph east of a demarcation line that runs up the middle of the St. Johns River to I-95 at the Fuller Warren Bridge and then north along I-95 to the county line, and 125 mph west of it. Two houses a few blocks apart can be designed to different numbers.
The Florida Building Code puts a site in the wind-borne debris region when it is within one mile of the coastal mean high water line with Vult of 130 mph or greater, or anywhere Vult reaches 140 mph. In Duval that captures Jacksonville Beach, Neptune Beach, Atlantic Beach, and the oceanfront strip — where impact glazing or approved shutters are required on all openings. Most of inland Jacksonville falls outside it, which is exactly why so many mainland homes have unprotected openings and lose the opening-protection credit on a wind mitigation report.
What this means for your policy
A wind mitigation inspection documents roof covering, roof deck attachment, roof-to-wall connection, roof geometry, secondary water resistance and opening protection. Those seven items drive the wind credits on a Florida policy. On a Duval County home it is usually the cheapest way to move a premium, and it can be bundled into the same visit as the home inspection.
Every inspection offered in Duval County
12 inspection types, all performed by William Knight across Duval County and the rest of Northeast Florida.
Buyer Inspections
Insurance Inspections
Seller Inspections
Specialty Inspections
Commercial Inspections
What Northeast Florida clients say
Published on the High Tide Inspections Google Business Profile.
“William was professional and thorough. He was able to schedule the appointment within the timeline I needed and delivered the wind mitigation inspection report that same day. I would recommend High Tide Inspections for anyone needing his services.”
D Rappvia Google · “William was extremely professional and thorough throughout the entire process. He was able to schedule the appointment within the timeline I needed and delivered both the 4-Point and full home inspection reports the following day.…”
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Christa Teddervia Google · “As a Realtor, I really appreciated how thorough and professional High Tide Inspections was during this new construction inspection. William provided a detailed, easy-to-read report with great photos and clear explanations.…”
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Coral Babb · Realtorvia Google ·
Reviews are published on the High Tide Inspections Google Business Profile and are reproduced here word for word. Rating and review count verified 2026-08-17.
Duval County home inspection questions
How much does a home inspection cost in Duval County?
Most full home inspections in Duval County fall in a typical range that tracks square footage and the age of the home. Older Duval County homes take longer because there is more to document. We quote before scheduling, so you will know the number before you commit. Call 904-806-7679.
What do inspectors find most often in Duval County homes?
The widest range of housing age and construction type in Northeast Florida — 1920s bungalows through current-year production builds, sometimes on adjacent streets. Specifically: cast-iron drain lines from roughly the 1920s through the 1970s corroding from the inside out and failing under slabs, polybutylene supply piping in late-1970s through mid-1990s construction — a common insurance decline, aluminum branch circuit wiring in mid-1960s to mid-1970s homes without approved alumiconn or copalum repairs, federal pacific stab-lok and zinsco or sylvania-zinsco panels still in service and original 1920s–1940s framing with added hvac and plumbing routed through cut structural members. We work the county by era and by distance from salt.
How long does a home inspection take in Duval County?
Two to four hours on site for a typical single-family home, longer for larger or older properties. The report is emailed quickly afterward — usually the same day or the next morning — because in a transaction the report is only useful if it arrives inside the inspection period.
Where do I check permit history in Duval County?
City of Jacksonville Building Inspection Division (the Beaches cities and Baldwin run their own building departments) holds permit records for Duval County. Most of Duval County permits through the City of Jacksonville Building Inspection Division under the consolidated city-county government, but Jacksonville Beach, Neptune Beach, Atlantic Beach, and Baldwin maintain their own building departments — so a permit search has to be run against the right jurisdiction. An inspection documents condition; the permit record documents whether the work was ever reviewed. On additions, re-roofs and electrical upgrades, look at both.
Does the inspection help with insurance in Duval County?
Insurers writing in Duval commonly ask for a 4-point inspection — roof, electrical, plumbing, HVAC. A wind mitigation inspection is separate from a home inspection and can be bundled into the same visit, which is usually the cheapest way to get both. Ask when you call 904-806-7679.
Who performs the inspection?
High Tide Inspections — InterNACHI certified, Florida licensed and insured, Certified Wind Mitigation Inspectors, Certified Roof Inspectors and 4-point certified, with 20+ years of construction and renovation experience behind every report.
Who does the work
When you call 904-806-7679 you are talking to the lead inspector, and when the report arrives it was written by the person who was standing in the attic.

William Knight — Owner & Lead Inspector
Serving Northeast Florida from St. Augustine. Monday–Saturday, 8:00am–6:00pm.
Experienced inspectors, start to finish
The person who looks at the roof is the person who writes the report, and you can call and talk it through with us afterwards. Every inspection follows the InterNACHI Standards of Practice, so you know exactly what is covered.
InterNACHI certified, Florida licensed, insured
Certified Wind Mitigation Inspector and Certified Roof Inspector as well, which is what lets a single visit cover both the buyer's questions and the insurance carrier's forms.
20+ years construction and renovation experience
Two decades of building and renovating homes before inspecting them. That is the difference between noting a crack and telling you whether it matters, what caused it, and roughly what it takes to put right.
A detailed photo report, emailed quickly
Every finding is photographed and explained in plain language, organised so you can hand it straight to your agent, your carrier, or a contractor for pricing. No padding, no scare tactics, no upsell.
Browse every Northeast Florida service area or see all inspection types.
Schedule your Duval County inspection
Tell us the address and your closing date and we will give you a firm price and the first date we can be there.
Mon–Sat 8am–6pm · 20+ years construction and renovation experience · InterNACHI certified, licensed and insured




