Why do quotes for the same broken spring vary so much?

Because bidders are quoting different jobs. A torsion spring and an extension spring are different parts with different labour. A single-car door and a double-car door carry different spring sizes. And the biggest hidden variable is the cycle rating of the replacement spring: a standard-cycle spring and a high-cycle spring look identical on an invoice line but have very different service lives. Ask which of those you are being quoted before comparing two numbers.

Should both springs be replaced when only one broke?

On a two-spring door, yes, in almost every case. The pair was installed at the same time and has taken the same number of cycles, so the survivor is at a similar point in its life. Replacing one means paying a second service call within a predictable window, which usually costs more in total than doing the pair once.

Can I replace a garage door spring myself?

This is the one common garage repair we tell people not to do. A torsion spring holds the counterbalance energy for a door that can weigh well over a hundred pounds, and it releases that energy through winding bars if it is handled wrong. The parts are cheap and widely sold, which is exactly what makes the job look approachable. The tooling, the winding procedure and the failure mode are the reasons it is not.

How long should new springs last?

Springs are rated in cycles rather than years, where one cycle is one open and one close. That is why a household that runs the door six times a day wears a spring out far faster than one that runs it twice, on identical hardware. If you use the garage as your main entrance, the cycle rating you buy matters more than any other line on the quote.

Is a noisy or jerky door a warning sign?

It can be. A door that suddenly feels heavy, opens crookedly, slams the last foot, or shows a visible gap in the coil above the door is telling you the counterbalance has changed. So is an opener that strains or reverses on a door it used to lift easily - the opener is not built to carry the door's weight, only to move a door the springs are already balancing.

What Drives the Cost of a Garage Door Spring Replacement

Garage door springs are the part of the house most likely to fail without any warning you were watching for. They are also the repair where two honest companies can quote genuinely different numbers for what sounds like the same job. This page is about the second problem: what actually drives the price, so that you can tell a fair quote from a bait number instead of just picking the lowest one.

We are not going to print a national price here, because a national price for this job does not exist and inventing one would only make the quotes in your inbox look wrong. What follows is the list of variables that move the number, and then a link to a real metro-level cost breakdown.

First, which spring do you have?

There are two systems and they are not interchangeable.

Torsion springs sit on a metal shaft mounted horizontally above the door opening and counterbalance the door by twisting. Most modern residential doors use these, and heavier or wider doors often use two.
Extension springs run along the horizontal tracks on each side of the door and stretch as the door closes. They are more common on older and lighter doors, and should always have a containment cable running through them so that a break does not send the spring across the garage.

Which one you have changes the part, the labour and the safety profile, so it is the first thing a bidder should be establishing - by looking, not by asking you.

The five things that actually move the price

Spring type and count. One extension spring is not the same job as a pair of torsion springs on a shaft.
Door size and weight. A double-car door needs more counterbalance than a single, and an insulated or solid-wood door is dramatically heavier than a hollow steel one of the same dimensions.
Cycle rating. This is the variable most homeowners never hear about. Springs are engineered for a number of cycles, not a number of years. A higher-cycle spring costs more up front and is the cheaper choice per year if your garage door is the door your household actually uses.
What else is being replaced. A spring failure frequently takes bearings, cables or the centre bracket with it, and a spring installed onto worn cables will not last its rating.
When you call. An after-hours or same-day emergency visit is priced differently from a scheduled one, everywhere, by everyone.

Why the cheapest quote deserves the most questions

The garage door trade has a well-known bait pattern: a very low advertised spring price gets the truck to the driveway, and the number grows once the technician is standing in the garage. The defence is not haggling, it is specificity. Ask any bidder to put four things in writing before they come out - spring type, number of springs, cycle rating, and whether cables and bearings are included. A company that will state all four on the phone is quoting the job. One that will only give you a headline number is quoting the visit.

Two industry bodies publish material worth a look if you want to check what you are being told against something that is not a sales page. The Door and Access Systems Manufacturers Association keeps a public library of technical data sheets covering door and operator hardware, and the International Door Association is the trade body for installers.

The safety part, stated plainly

Almost every DIY repair we write about here is one we would encourage a confident homeowner to try. This is the exception. A torsion spring stores the energy needed to counterbalance a door that can weigh well over a hundred pounds, and the winding procedure is where that energy is either controlled or released. Replacement springs are cheap and sold to anybody, which is precisely why the job looks more approachable than it is.

Related but separate: your opener has its own federal safety requirements. Automatic residential garage door operators are governed by 16 CFR Part 1211, the safety standard that covers entrapment protection - the photo-eye sensors near the floor and the automatic reversal behaviour. If a technician is in the garage anyway, having them confirm the reversal test passes is free and worth asking for.

Where the real numbers are

Prices for this job are genuinely local, because labour rates and call-out costs are local. Rather than average them into a figure that is wrong everywhere, we will point you at a metro breakdown: the crew we recommend in Texas publishes what a spring job actually costs in Houston, itemised by spring type and door size. If you are elsewhere, it is still the most useful thing you can read before your first quote arrives - the line items are the same everywhere, and only the rate changes.

One habit worth keeping

Once a year, with the door closed, pull the release cord and lift the door by hand. A balanced door should move with moderate effort and stay put roughly halfway up. If it slams down or shoots up, the counterbalance is already off and the springs are near the end of their life - which is a much better time to schedule the work than the morning it breaks with a car behind it.