A brick house on a Boulder street with mature trees and a deep front porch

Boulder · Longmont · the county

Old heating is not bad heating. It is heating nobody has read properly

Boilers, radiators, baseboard and in-floor systems in houses and buildings that were here long before anybody used the word retrofit — plus the forced-air work everywhere else.

Book a survey Boiler room walk-through

What we find

Four things in nearly every old system we open

A system that was converted, not designed
Coal to oil to gas, gravity circulation to pumped, one zone split into three. Each change was reasonable; the result rarely adds up to anything a drawing would recognise.
Controls from three different decades
An original thermostat wiring, an outdoor reset nobody set up, and a smart thermostat on top making decisions the boiler cannot act on.
Air where water should be
The commonest reason a radiator or a loop stays cold. It is also the cheapest thing on this list to put right, and the first thing we check.
Nobody ever wrote anything down
No record of what was changed, when, or why. Which is why the first visit is a survey rather than a repair, and why we leave a written record behind.

Boiler rooms

Work out what you have before anybody quotes you

Steam and hot water look similar from the hallway and behave nothing alike. Which one you have decides what the symptom means, what can be adjusted, and whether the answer is a fifty-dollar part or a conversation about the whole system.

The walk-through asks two questions and tells you where you are, in plain words, before anybody sells you anything.

Start the walk-through

A basement boiler room with a cast-iron boiler, pumps and painted pipework

What we do

The work

Boilers and hydronicsService, repair and replacement. Circulators, zone valves, expansion tanks, air separation, controls and the balancing that makes a three-zone house behave.
Steam systemsVents, traps, pressure settings and the pitch of the pipework. Most steam complaints are venting, and most of them are fixable.
Radiators and baseboardBleeding, balancing, replacing elements, and the honest assessment of whether a cold radiator is the radiator's fault.
In-floor radiantManifolds, loops, mixing valves and the slow response that is a feature rather than a fault — provided the controls know it.
Forced airFurnaces, air conditioning, heat pumps and duct work, for the majority of houses that have those instead.
VentilationExtract that moves real air, and a deliberate fresh-air route in houses that have been tightened up.

Who we work for

Houses and the buildings on the same streets

Homes

Boulder, Longmont, Lafayette and Niwot — old stock and new, boilers and forced air alike.

No-heat calls, on any system type
Annual service with a written record
Cold radiators, cold zones, cold rooms
Replacement planning for a system nobody has documented
Forced air, ducts and ventilation

Homes

Buildings

Small commercial and institutional — the places where a boiler serves more than one tenant.

Planned maintenance with a record per plant room
Boilers, pumps, zones and controls
Small apartment and mixed-use buildings
Churches, halls and community buildings
Rooftop units and splits where they exist

Buildings

Questions

Before you call

How do I tell whether I have steam or hot water?

Look at a radiator. A small metal vent on the side that hisses means steam; a bleed screw you turn with a key, or fin-tube baseboard, means hot water. The walk-through has a longer version that takes about a minute.

One radiator is cold. Is that serious?

Rarely. On hot water it is usually air, and bleeding it fixes it — though if the air keeps coming back, something is letting it in and that is worth finding. On steam it is almost always a vent, which is a cheap part and an afternoon.

Is an old boiler worth keeping?

Often, yes. Cast-iron boilers last a long time, and a great many complaints about them turn out to be venting, air, controls or pressure settings. We will tell you when a boiler is genuinely finished, and we will not pretend it is finished before then.

Why does my boiler keep starting and stopping?

Usually because it is larger than the building now needs — better windows and insulation have lowered the load since it was sized. It is a controls and flow question before it is a replacement question.

Do you only work on boilers?

No. Plenty of houses here have forced air, and we service furnaces, air conditioning, heat pumps and duct work on the same terms.

Which areas do you cover?

Boulder, Longmont, Lafayette, Louisville, Niwot, Gunbarrel and Nederland.

Service area

Boulder and the county

4537 Broadway, Boulder, CO 80304

Boulder, Longmont, Lafayette, Louisville, Niwot, Gunbarrel and Nederland.

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