(972) 457-2494 Book an appointment
McKinney · Collin County

Heating and air, explained before you sign.

Grant repairs, replaces and maintains heating and air conditioning for homes and businesses around McKinney — and before you buy, sell or lease a property, we'll tell you plainly what its system is, how old it is, and what it's likely to need.

(972) 457-2494 Book an appointment
Before you even open a panel

Six things the outside of a house tells us.

Walk round the side of almost any house in McKinney and the heating and cooling system has already said a lot. Here's what we look at first.

The side of a brick house with an outdoor air conditioning unit on a pad, a disconnect box on the wall, refrigerant lines entering the wall, a drain outlet above a window and a furnace vent on the roof
Numbers on the photo match the notes.

  1. The outdoor unit and its data plate

    The serial number usually encodes the year it was made, and the plate names the refrigerant. An R-22 system is at least a decade old and expensive to recharge.

  2. The disconnect

    Rusted boxes, missing covers, or wiring run without proper conduit tell you how carefully the system was installed.

  3. The refrigerant lines

    Missing or crumbling insulation on the larger line wastes cooling. Oily residue at joints can point to a leak.

  4. The pad and the clearance

    A sunken or tilted pad, or shrubs crowding the coil, shorten a unit's life and cut its capacity.

  5. A drip above a window

    Many attic systems have a secondary drain that exits over a window on purpose. If it's dripping, the main drain is blocked — worth fixing before a ceiling stains.

  6. The furnace vent

    On the roof, a rusted, loose or leaning vent cap is worth a closer look at the furnace underneath it.

Every house is different; this is where we start, not the whole evaluation. What a full evaluation covers.

Who we work for

Homes and businesses, in equal measure.

An older McKinney house with a deep front porch and mature trees, an outdoor air conditioning unit visible at the side
Homes

From historic downtown to the newest subdivisions

Older houses near the square with systems added long after they were built, and new houses in Craig Ranch, Stonebridge Ranch and north of US-380. Repairs, replacements, seasonal service, and evaluations when a house changes hands.

  • Written findings in plain language, with photos.
  • A written price before any billable work.

Home services

A technician with a clipboard beside a row of rooftop units on a single-storey commercial building
Businesses

Offices, shops, restaurants and small buildings

Along US-75, SH-121 and University Drive: rooftop units and split systems in offices, retail, restaurants and medical suites. Repair and maintenance around your hours, and a unit-by-unit survey before you buy or lease a building.

  • Per-unit condition survey for due diligence.
  • Scheduled maintenance with a note per unit.

Business services

Plain about the limits

What an evaluation from us isn't.

It's useful precisely because it's narrow. Here's where it stops.

  • Not a home inspection

    A licensed home inspector looks at the whole house. We look only at heating and cooling, in more depth. Many buyers use both.

  • Not a pass or a fail

    We describe condition, age and likely needs. What that's worth in a negotiation is for you and your agent.

  • Not a guess

    If a data plate is missing or a part can't be reached, we say so rather than estimate.

  • Not a sales call

    An evaluation doesn't come with a replacement pitch. If the system is fine, that's what the report says.

Buying or selling: the full page

How it works

Four steps, whatever the job.

  1. Call

    Repair, maintenance, or an evaluation — and your deadline, if there's an option period.

  2. Look & measure

    Outside first, then the equipment, the ducts and the controls.

  3. Write it down

    Findings with photos, and a written price for anything billable.

  4. You decide

    Nothing is done that you haven't approved.

No prices on this site

We don't publish prices or "starting from" figures. Ask when you call — you'll get a straight answer for your house or building.

Where we work

McKinney and Collin County.

The office is on North Tennessee Street, a few blocks from the square.

  • McKinney
  • Allen
  • Frisco
  • Plano
  • Prosper
  • Celina
  • Melissa
  • Anna
  • Fairview
  • Princeton

Office

1321 N Tennessee St, McKinney, TX 75069
Mon–Fri 7:30am–5pm · Sat 9am–1pm
(972) 457-2494

Questions

Asked before a signature.

Is an HVAC evaluation the same as a home inspection?

No. A licensed home inspector looks at the whole house. We look only at the heating and air conditioning, in more depth, and describe what we find in writing. Many buyers use both.

Can you tell me how old the system is?

Usually, yes. Manufacturers encode the date of manufacture in the serial number on the data plate, so we can normally read it. If the plate is missing or unreadable, we say so rather than guess.

Why does it matter if a system uses R-22?

New production of R-22 refrigerant ended in the United States in 2020, so recharging an older R-22 system has become expensive. A leak in an R-22 system often makes replacement the sensible choice.

Do you evaluate commercial buildings?

Yes. Before you buy or lease a commercial building, we survey each unit for age, refrigerant type, condition and signs of maintenance, and write it up unit by unit. Under many commercial leases the tenant is responsible for the HVAC, so it is worth knowing before you sign.

What does "Surface Experts" in your name mean?

It is part of the business name, not a second trade. Grant is a heating and air conditioning contractor and does not do surface finishing, painting or coatings.

Ask before you sign.

Or just ask us to fix it. Homes and businesses across Collin County.

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