What A Spring Job Actually Costs, And Why Quotes Vary So Much

Here is the honest answer first, and it is the one most people do not want. Nobody can tell you what your spring job costs until they know four things: the wire size of the spring, what the door actually weighs, whether the door runs on one spring or two, and whether anyone kept running the door after the spring let go. A number given before those four are known is not a quote. It is a guess with a price tag on it.

So this page explains where the money in a spring job goes, what moves the number up, and what a fair quote should show you line by line. The estimate on site is free.

The four things that set the number

Wire size is the big one. A torsion spring is defined by four measurements: wire diameter, inside diameter, length, and which direction it winds. Thicker wire and greater length means more steel and more torque per turn, and it costs more to buy. A light single door on thin wire and a heavy insulated double on quarter inch wire are not the same purchase.

Door weight is next, because the spring gets sized against the weight, not against the door's size on a chart. A basic uninsulated single can run around 130 pounds. An insulated double with glass in the top section can pass 250. Then the count, one spring or two. Last is whether the door got run after the break, because that decides whether this is a spring job or a spring, cable, and opener job.

Where the money goes: parts, labor, and the part you cannot see

On most residential spring jobs the labor and the trip are the bigger half, not the steel. Spring wire is a commodity. What you are paying for is a tech who knows what your door weighs, picks the right spring for that weight, winds it with proper steel bars, then balances the door so it holds where you leave it instead of drifting.

That last step is what the cheapest quote skips. A door that is close enough still runs. It also chews rollers and burns cycles off the spring you just paid for. Balance is not a finishing touch. It is the job.

• The springs, sized to the measured or calculated weight of your door, not to a generic chart
• Center bearing and end bearings if they are dry, scored, or seized, which is common on a door old enough to break a spring
• Winding, tensioning, and hand balancing the door with the opener disconnected
• A cycle test plus a check of the opener travel and force settings, since the opener has been fighting that door for a while
• Haul away of the old spring, which is scrap steel you should not have to store

Why two springs in one visit costs less than one spring twice

This gets heard as an upsell, so here is the arithmetic instead. The trip is one trip. The ladder goes up once. The shaft, the drums, and the cables get handled once. Almost all of the labor on the second spring overlaps with the labor on the first, so what the second spring adds to the bill is mostly material.

Then there is timing. Both springs went on the same day and have taken the same cycles, so when one reaches the end the other is close behind, often inside a year. Springs are also sized as a matched pair, so a fresh spring working next to a fatigued one puts uneven torque across the shaft and the door never sits right through its travel.

High cycle springs cost more once and less per year

A standard residential spring is rated at about 10,000 cycles, and one cycle is one trip up and one trip down. A high cycle spring uses thicker wire and more length, carries a rating of 20,000 or 50,000, and costs more up front. The gap is not large next to a whole second spring job with its own trip charge.

Whether it pays comes down to how often the door runs. At six cycles a day, about 2,190 a year, a standard spring is a four to five year part and high cycle turns that into a decade. At two cycles a day the standard spring already lasts around fourteen years, and stretching that past the remaining life of the door is money doing nothing.

Why an emergency or after hours call costs more

During the day a tech is on a route, three or four stops ordered so the driving between them is short. At nine at night he is not on a route. He is in your driveway instead of the three jobs he would run in the morning, and the truck, the fuel, and the hour all land on one ticket instead of four. That is the whole reason the rate is higher. It is scheduling, not opportunism.

So it is worth paying when the door is stuck open, when a car is trapped and you leave before dawn, or when something is pinned under the door. It is not worth paying when the door is closed, the house is locked, and the only cost of waiting is inconvenience. We will say so on the phone.

North Texas produces one predictable version of this. The first hard freeze of the season sets off a wave of spring breaks across Tarrant and Parker County inside the same two or three mornings. Cold does not wear a spring out. It makes already fatigued steel less forgiving at the moment of highest stress, which is the door sitting closed with the spring fully wound. Everybody's door goes on the same morning, which is the morning every truck is booked. If your door is on original springs and the house is fifteen years old, the week before a front is a cheaper week than the morning after one.

What honestly makes a quote go up once the tech arrives

A number can move. It should not surprise you, and you should hear about it before any wrench turns. These are the real reasons, and there are not many.

• Cables shredded at the drum or at the bottom bracket, almost always because the door got run a few more times after the bang
• A stripped plastic drive gear in the opener, from the motor trying to lift a door the springs were no longer holding
• A bent or cracked top section where the opener arm attaches, which is the weakest point when the opener pulls on dead weight
• A seized center bearing or a worn end bearing plate, which will grind a brand new spring if it goes back together as is
• An unusual wire size, a very heavy custom door, or a high cycle setup that has to be ordered instead of pulled off the truck

Four of those five trace back to one cause, which is running the door after it broke. One or two presses before you understood what happened is almost always harmless. Twenty is a different bill.

What a fair quote itemizes

You cannot compare two prices that are written differently. Ask for the quote in parts, and ask these five in this order.

1. How many springs is this price for, and does it include both
2. What is the cycle rating of the spring going on my door, 10,000 or higher
3. Are bearings, cables, or a bottom bracket included, or added if they turn out to be needed
4. Does the price include hauling the old parts away
5. Does the price change if you find something else, and will you tell me before you do that work

The fourth one is the tell. A company that will not put a cycle rating on the spring it is installing has not thought about the spring.