Concept project. Halstead Mechanical is an invented company, built as a portfolio piece. Manny Pachano

Central Ohio · Since 1974

When the chiller goes down at 2 a.m., call us.

Commercial HVAC, plumbing and building automation in central Ohio. Service, installation and preventive maintenance for commercial buildings.

12 34 ABC RTU-1 RTU-2 RTU-3 RTU-4 MECH 1 440'-0" N
Partial roof plan · Grandview DC · pick a unit
Unit
RTU-3
Capacity
45 tons
Age
Installed 2006
Status
Tagged for replacement

24 hour emergency service. A technician is assigned before the call ends, and you get their name and arrival window by text.

Open right nowColumbus

(614) 555-0142

Call us, ask for a quote, or put the building on a plan

Emergency calls are answered around the clock. Everything else gets a reply the next business day, and an estimator writes it.

Something is down

Emergency service

Round-the-clock dispatch. Tell us the building and the equipment, and you get the technician's name and an arrival window by text.

Call now

Planning a project

Installation and replacement

New equipment, replacements, and design-build or plan-and-spec projects. Send us the details and an estimator will put together a quote.

Get an estimate

Ongoing upkeep

Service agreements

Scheduled maintenance on a written plan, with filter and belt changes included and one account manager for your building.

Ask about maintenance

HVAC, plumbing and controls on one contract

Most buildings hire a separate contractor for each of these, and when something breaks they blame each other. All four trades below are our own crew, so there is one company to call and one company responsible.

HVAC

Rooftop units, split systems, boilers and chillers. Service, replacement and new installation.

Equipment size5 to 400 tons

Plumbing

Domestic water, sanitary, gas piping and backflow certification, on the same job as the mechanical work.

Pipe sizeUp to 6 inches

Building automation

Controls upgrades and front-end replacements on open protocols, so the next contractor is not locked out.

ProtocolsBACnet and Modbus

Maintenance

Agreements with scheduled visits, a written scope, and the same technicians coming back to your building.

Buildings covered340
A commercial mechanical room: chillers, pumps and insulated piping.
01 02 03 04 ROOFL3 L2GRADE
Building section · the systems we service

Check how fast this needs a technician

Pick what the equipment is doing. We will tell you how urgent it is and what to have in front of you before you call.

What the equipment is doing

If none of these match, call (614) 555-0142 and describe what the equipment is doing. Dispatch will tell you the same thing.

Four buildings from the last two years

Square footage, tonnage and delivery method tell you whether a contractor has worked at your size. Those are the figures on each one below.

A distribution center with rooftop units along the roofline.

218,000sq ft2026

Grandview distribution center

Fourteen rooftop units replaced across two roof seasons, with the building staying in operation throughout.

210 TONS · DESIGN-BUILD

A medical outpatient building.

118,000sq ft2025

Hayden Run outpatient clinic

Chiller plant replacement with a new controls front end, phased around clinic hours.

400 TONS · PLAN AND SPEC

A county administration building.

96,000sq ft2025

County records and administration annex

Boiler replacement and a migration off a proprietary controls system the owner could not get competing quotes on.

4.2 MMBTU · DESIGN-ASSIST

A school building.

1.1Msq ft2024

Six school buildings, Westerville

Six buildings on one preventive maintenance agreement, with a single account manager across all of them.

SIX BUILDINGS · SERVICE AGREEMENT

How long it takes us to get there

Median time from your call to a technician on site, across every call we logged last year. Scheduled maintenance visits are booked in advance and run about four working days out.

Call to technician on site Median, 2,140 calls, last 12 months

Scheduled maintenance visits are booked in advance, so they sit outside this chart. Those run about four working days out.

340

Buildings on a service agreement

Schools, clinics, warehouses and county offices across seven counties. The largest is 1.1 million square feet.

60

Technicians on our own payroll

Twelve of them run nights and weekends, which is why the first two bars above are measured in minutes.

1974

The year Ed Halstead started it

His daughter runs it now, from the same shop on Leap Road.

The counties we cover

Select a county for drive time and what we run there. An emergency call inside this area does not need an existing agreement.

Union MARYSVILLE Delaware DELAWARE · POWELL Licking NEWARK · HEATH Madison LONDON Franklin COLUMBUS · BASE Pickaway CIRCLEVILLE Fairfield LANCASTER

The shop, Hilliard Selected county Click or tab a county

Tell us what you are working on

An estimator will reply the next business day, either with a quote or with the questions needed to put one together.

Something down right now? Call (614) 555-0142.

Next business day
An estimator emails you a quote, or the questions needed to write one.
Within the week
A site visit, if the scope needs someone on the roof or in the plant room.
With the quote
Equipment list, scope of work and the dates we can hold for the job.
What kind of work