Equipment behaves differently a mile up
Furnaces, air conditioning and rooftop units for homes and businesses along the north Denver corridor — sized and set up for the air we actually have.
- 01HomesFurnace and air conditioning repair, replacements sized from the house, ducts and controls.
- 02BusinessRooftop and split systems, planned maintenance, change-outs and equipment rooms.
- 03AltitudeWhat thinner air does to furnace input, cooling capacity and airflow — with the numbers.
- 04ContactBook a call-out, or ask a question and get a straight answer back.
A furnace rated in Ohio does less work in Thornton
Air at 5,300 feet is roughly five-sixths as dense as it is at sea level. Combustion equipment is derated for it, cooling equipment moves less mass of air for the same fan speed, and a duct system sized off a sea-level table is short before anyone switches it on.
None of that is exotic — it is standard practice here, and it is the reason a system that looked fine on paper can disappoint in the house.
Houses and buildings
Homes
- HeatingFurnace repair and replacement, controls, and the safety checks that go with combustion.
- CoolingAir conditioning repair, replacement and evaporative systems where they are already fitted.
- Ducts and airflowSealing, returns and the rooms that never keep up with the rest of the house.
Business
- Rooftop unitsService, repair and change-outs on packaged equipment.
- MaintenanceScheduled visits with a written record for each unit on the roof.
- Equipment roomsSpaces that need cooling all year regardless of the weather outside.
Set up, not just installed
- MeasuredGas pressure, temperature rise, static pressure and airflow — recorded, not estimated.
- Priced before the workRepairs in writing after the diagnosis; projects proposed on paper.
- Left correctCommissioning figures written down, so the next visit knows what good looked like.
Asked often
Does altitude really change how a furnace performs?
Yes. Combustion equipment is derated with elevation — the usual figure is four per cent per thousand feet above two thousand — and gas pressure and orifice sizing follow the manufacturer's instructions for the altitude. Our altitude page puts your own elevation into the arithmetic.
My house is cold in one room and fine everywhere else. Is the furnace too small?
Usually not. It is more often airflow: a duct run that was added later, a return that cannot get air back, or static pressure high enough to limit the blower. We measure before proposing anything.
Do you work on evaporative coolers?
We service them where they are already fitted, and we will tell you honestly when one is not going to cope with a given week. We do not pretend they are the same thing as refrigerated cooling.
Do you serve businesses as well as houses?
Yes — packaged rooftop units, split systems, warehouse heating and equipment rooms, with scheduled maintenance logged per unit.
Will I get a price before the work starts?
Yes. Repairs are priced in writing after the diagnosis, and projects are proposed on paper before anything is ordered.
Which areas do you cover?
North Denver, Thornton, Northglenn, Westminster, Brighton, Commerce City and Broomfield.
North Denver and the northern suburbs
3954 E 120th Ave, Denver, CO 80233
North Denver, Thornton, Northglenn, Westminster, Brighton, Commerce City and Broomfield.