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Thermal imaging inspection on Long Island

A thermal imaging inspection uses a calibrated infrared camera to map surface temperature across a building, showing what the eye cannot: hidden water leaks, wet or missing insulation, air leakage and overheating electrical connections. We carry out thermal imaging inspections on houses and commercial buildings across Nassau and Suffolk counties, confirm every finding with a second instrument before it is reported, and never bid the repair.

Infraspection Institute Certified Infrared Thermographer seal

Certified Infrared ThermographerInfraspection Institute · FLIR E96 & T865

Thermal image of an interior wall and window bank: the ceiling reads warm at 24.2 degrees Celsius while cold air tracks down around every window frame at 10.3.
Cold air tracking in around every window frame. Invisible in a photograph, obvious in a thermal image.

What a thermal imaging inspection finds

A thermal camera measures surface temperature across a whole wall, ceiling, floor or roof at once. Water, missing insulation, moving air and overloaded electrical connections all change that temperature, so they show up as patterns the eye cannot see.

An anomaly is a lead, not a conclusion. A warm patch can be a leak or a heating pipe; a cold one can be wet insulation or simply an exterior wall. Every finding is checked with a second instrument — a moisture meter, acoustic equipment or a reference reading — before it goes in the report.

  • Hidden plumbing and slab leaks
  • Radiant floor heating leaks
  • Wet insulation in walls, ceilings and roofs
  • Missing or settled insulation
  • Air leaks at windows, doors and attics
  • Ice-dam and ventilation patterns
  • Overheating panels and connections
  • Roof moisture on low-slope roofs

Homes and commercial buildings

Homes. On a house the inspection usually starts with a symptom: a ceiling stain, a cold room, a warm patch on a slab floor, a water bill that has crept up, or ice building along the eaves. Long Island has a lot of slab-on-grade ranches, finished basements and radiant heat, where a leak can run for weeks before anything shows. We scan the affected area and the rooms around it, confirm what is wet, and tell you where to open — once.

Commercial buildings. Warehouses, medical and professional offices, retail plazas, schools and apartment buildings get the same discipline at building scale: electrical equipment under load, low-slope roof fields after sunset, envelope and piping in occupied space. For a commercial-only scope see commercial infrared inspection on Long Island.

  • Houses, condos and co-ops
  • Basements and slab floors
  • Multifamily and apartment buildings
  • Warehouses and industrial
  • Medical and professional offices
  • Retail plazas, schools and municipal

Across Nassau and Suffolk

We are based in Hewlett, on the South Shore of Nassau County, and cover all of Long Island. Nassau brings dense post-war housing, South Shore homes that have taken on water in coastal storms, and older North Shore houses with complicated roofs. Suffolk brings newer subdivisions, the industrial and office corridors around Hauppauge and Route 110, and East End homes that sit empty through the winter — where a leak can run unnoticed for weeks.

Far-east Suffolk and the Forks affect scheduling, so give us as much notice as you can for those addresses. See every Nassau County community we serve or the Long Island overview.

  • Nassau: Hempstead, North Hempstead, Oyster Bay, Glen Cove, Long Beach
  • Suffolk: Babylon, Huntington, Islip, Smithtown, Brookhaven
  • East End: Riverhead, Southampton, East Hampton, Southold, Shelter Island

When to schedule

Thermal imaging needs a temperature difference to work with. For insulation and air-leakage work that means the heating or cooling season, ideally with about 18 °F (10 °C) between inside and outside. Leak investigations can be done year-round, because escaping or evaporating water creates its own difference. Roof surveys run after sunset on a dry day; electrical surveys run with the equipment under normal load.

If the timing is wrong for what you need, we say so before booking rather than scanning anyway.

Common questions

Thermal imaging inspection on Long Island — answered.

What does a thermal imaging inspection on Long Island cost?

It is quoted flat, per property, after a short conversation about the building and what you are seeing — not hourly. A single-room leak investigation in a house and a full survey of a warehouse are different jobs, and the quote reflects that.

Do you inspect houses as well as commercial buildings?

Yes. We work in houses, condos and co-ops as well as commercial and multifamily buildings across Nassau and Suffolk. The method is the same; the scope changes with the building.

Can a thermal camera see through walls?

No. It reads the surface temperature of the wall. Water, missing insulation and moving air change that temperature, which is what the camera picks up. That is why every finding is confirmed with a moisture meter or another instrument before it is reported.

Is a thermal imaging inspection the same as a home inspection?

No. A general home inspection is a visual review of the whole house. A thermal imaging inspection is a focused diagnostic that looks for what infrared can find: hidden moisture, insulation gaps, air leakage and electrical heat. Buyers often commission both.

When is the best time of year for a thermal imaging inspection?

For insulation and air leakage, the heating season, when the inside-outside temperature difference is largest. Leak investigations can be done any time of year. Roof surveys need a dry day and run after sunset.

Do you cover the East End and the Forks?

Yes, all of Suffolk County, including the North and South Forks. Those addresses take more scheduling, so give us as much notice as you can.

Why us and not a plumber

We write the report. We never bid the repair.

A plumber who finds your leak also sells you the repair. A roofer who inspects your roof also quotes the replacement. That isn't dishonesty — it's structure, and it quietly shapes every finding. We are an independent diagnostic company: we do not perform repairs, we do not sell materials, and we take no referral fee from any contractor. The report is the entire product, so there is nothing for us to gain by finding more than is there.

No repair revenue

We can't profit from the work we recommend, because we don't do the work. If your roof is 8% wet, the report says 8% — not "replace the field."

No referral fees

We accept nothing from contractors for sending work their way. Take our findings to your own plumber, roofer, or electrician, or put them out to bid.

Findings that carry weight

Boards, managing agents, and insurance carriers treat an independent finding differently than an estimate from the company that wants the job.

We'll tell you it's nothing

Sometimes the answer is condensation, or a warm duct, or a neighbor's roof. We're paid the same either way, so we say so.

Read why independence matters →

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