Licensed & insured · Long Island & 5 Boroughs

We See What Others Can't.

Trusted Home Inspections so you can buy or sell with confidence. Same-week scheduling, easy-to-read reports, and a real person on the other end of the phone.

2,100+
Homes inspected
4.9★
Avg. rating
24hr
Report delivery
A welcoming Long Island home at golden hour

We treat your future home

like our own.

InterNACHI Certified NY Licensed #16000043249 Insured E&O ASHI Member
Robert McKinley, founder and lead home inspector
200+ five-star reviews

Meet your inspector

Why I started inspecting homes.

Hi, I'm Robert McKinley. With over 40 years in the construction and building industry, I bring deep, hands-on experience to every inspection.

I'm a licensed home inspector and pesticide technician, and I believe your home is your largest investment. That's why we focus on client education, thorough evaluations, and honest, plain-English discussion. We inspect every home as if it were for our own family.

We cover all of Long Island, Queens, Nassau, and Suffolk County. Call now for an estimate — peace of mind has no price, and a Diamond Home Inspection delivers exactly that.

"We treat your future home like our own — because the biggest purchase of your life deserves nothing less."

Interactive

Explore your future home.

Swipe through the areas we inspect — click any tab below to jump straight to it.

Roof inspection
Inspecting

Roof

Shingles, flashing, gutters, drainage.

  • Shingle condition & age
  • Flashing & penetrations
  • Gutters & downspouts
  • Attic ventilation
40+roof checkpoints
Foundation inspection
Inspecting

Foundation

Cracks, settling, water intrusion.

  • Cracks & settling
  • Water intrusion signs
  • Grading & drainage
  • Crawlspace moisture
25+structural points
Electrical inspection
Inspecting

Electrical

Panel, GFCIs, grounding, safety.

  • Main & sub panels
  • GFCI / AFCI protection
  • Grounding & bonding
  • Outlets & fixtures
100%outlets tested
Plumbing inspection
Inspecting

Plumbing

Pressure, leaks, water heater age.

  • Supply pressure
  • Visible leaks & drains
  • Water heater age & TPR
  • Fixture operation
PSIpressure verified
HVAC inspection
Inspecting

HVAC

Heating, cooling, ductwork, filters.

  • Heating operation
  • Cooling & refrigerant lines
  • Ductwork & registers
  • Filters & thermostat
Δ°Ftemp split test
Structure inspection
Inspecting

Structure

Framing, attic, crawlspace integrity.

  • Framing & load paths
  • Attic rafters & trusses
  • Crawlspace & sills
  • Wall & ceiling deflection
360°walk-through
Pesticide inspection
Inspecting

Pesticide

Termite inspection, pest risks, treatment guidance.

  • Termite activity signs
  • Wood-destroying insects
  • Rodent entry points
  • Treatment recommendations
WDIcertified report
Full Interior inspection
Inspecting

Full Interior

Doors, flooring, carpeting, lighting, and finishes.

  • Doors, trim & hardware
  • Flooring & carpeting
  • Walls, ceilings & paint
  • Lighting & switches
Roomby room detail
Appliances inspection
Inspecting

Appliances

Kitchen and laundry appliances, built-ins, and operation.

  • Fridge & freezer cycle
  • Range, oven & vent hood
  • Dishwasher run cycle
  • Washer & dryer operation
Liveoperation tested
Auto-tour · swipe or click a tab

Services

Inspections built around your moment.

Whether you're buying your first home in Nassau County or listing a condo in Manhattan, we've got an inspection tailored for you.

Buyer's Inspection

A full top-to-bottom inspection so you know exactly what you're buying before closing day.

Pre-Listing Inspection

Sell faster and stronger. Catch issues before buyers do and walk into negotiations confident.

Condo & Co-op

Focused interior inspections for NYC and East End condos, with a clear report for your board.

Commercial

Office, retail, and small commercial property inspections for buyers and lessors.

Mold · Termite

Specialty testing add-ons to protect your family's health and your investment.

Re-Inspection

Verify that requested repairs were done properly before you sign on the dotted line.

How it works

Three calm steps to confidence.

  1. 1

    Schedule

    Call or book online. Most inspections happen within the week — often within 48 hours.

  2. 2

    Inspect

    We walk the home for 2–3 hours, top to bottom. You're welcome to join us at the end.

  3. 3

    Report & next steps

    A clear, photo-rich report in 24 hours, plus a follow-up call to talk through what matters.

Real stories

Families we've helped find home.

"Michael spent 3 hours with us and explained every single finding. We felt taken care of — not sold to. We bought the house knowing exactly what we were getting."

Sarah & James M.

Westhampton, NY

"First-time buyer here and I was nervous. He made me feel like family. The report was beautiful and easy to understand. Worth every penny."

Kholilur R.

Shirley, NY

"Found a foundation issue another inspector missed. Saved us from a $40k mistake. I tell everyone we know to call Diamond first."

The Alvarez Family

Riverhead, NY

FAQ

Questions we love to answer.

How much does a home inspection cost on Long Island?

Most single-family home inspections run between $550 and $750, depending on square footage, age, and add-on services like radon or mold testing. We'll give you a flat quote up front — no surprises.

How long does a home inspection take?

Plan on 2 to 3 hours for an average home. Larger or older homes can take longer. You're welcome to walk through with us at the end so we can show you everything in person.

What's included in the inspection?

We inspect the roof, attic, foundation, structure, exterior, interior, electrical, plumbing, HVAC, insulation, ventilation, and built-in appliances — over 400 individual items, all documented with photos in your report.

How should I prepare for my inspection?

If you live in the home, just make sure utilities are on and there's access to the attic, electrical panel, and any crawlspaces. If you're the buyer, plan to join us for the last 30 minutes — that's the most valuable part.

Do you serve all of New York?

We're based on Long Island and proudly serve Nassau and Suffolk Counties plus all five NYC boroughs — Manhattan, Brooklyn, Queens, The Bronx, and Staten Island.

When will I get my report?

Within 24 hours of the inspection — usually the same evening. Reports include photos if requested, plain-English explanations, and clear priority levels so you know what's urgent and what's just good to know.

Let's protect your next chapter.

Tell us a little about the home and we'll get back to you the same day with a quote and the earliest available time.

Request an inspection

We respond within a few hours during business days.