Openings
Garage door installation cost
About $1,750 for a plain steel double door fitted and the old one taken away, and about $2,800 for the insulated door most people are steered towards. Whether that extra thousand returns anything depends on one question no quote asks — is there heated space behind the door? On a detached garage the energy saving is zero. On the best attached case it is about $6 a year. Buy the insulation for the temperature and the silence, which are real.
Written and edited by Pablo Ruiz Quintero
Last reviewed 2026-09-21 · Nothing you type leaves your browser
The opening
Size and construction give the weight, and the weight decides the springs and the opener. Where the garage sits decides whether the insulation you are being sold does anything at all.
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7 ft is standard, 8 ft is common in newer builds.
Foam board sandwiched between the skin and a back sheet. The common mid-range door, and the point at which the thing stops sounding hollow.
The shared wall is insulated and fire-rated, but it still loses heat into a cold garage. Raising the garage temperature reduces that loss, and that is where the saving actually comes from.
Each adds about 5 lb and takes a bite out of the R-value.
Chicago, Denver, Boston, Detroit
Worth checking it can still lift the new door. A heavier insulated door on an old half-horsepower chain drive is how an opener dies a year after a new door goes on.
The normal arrangement, and it is in the price of any quoted door.
Taking the old one out and away is a line item, and it is sometimes left off a quote.
Used only to pick a regional labour rate. It stays in your browser.
Installed
$2,816
16 × 7 ft · 202 lb · $25 a ft²
$1,742 to $4,396 depending on who you ask
Door, fitting, removal of the old one.
The R-value on the sticker, and the one you get
Two steel skins joined at every section edge conduct straight through the foam.
DASMA specifies a whole-door figure for exactly this reason. Almost no advert quotes one, and the gap is a factor of two or three.
What the insulation actually saves
$2 a year
The door does not heat your house. It raises the garage from 11°F to 18°F on a design day, and the house then loses less into it through the shared wall. It will not repay the $1,064 the insulation adds on energy alone.
What each step up costs, and what it returns
Same opening, same fitting. Only the door changes.
Shopping list
- Two-layer steel, polystyrene core, 16 × 7 ft
112 ft² · 202 lb · sold as R-9, assembly about R-4.11 door - Torsion springs, re-sized to this door
25.5 in-lb per turn each — 0.2253 in wire, 30.4 in long. A quote that reuses the old springs on a heavier door is quoting a callback2
What it costs
National average. Door, tracks, fitting and setting out, plus removal and disposal of the old door. New springs should be in any quote for a heavier door and often are not — ask. Structural work to the opening, and a jamb that has rotted, are separate.
$25 a square foot. The counterbalance is its own decision — see garage door springs for what this door needs and how many years each grade buys. And if the garage floor is going to be done, that is the same empty garage.
Worth knowing
- A 16 × 7 ft door in two-layer steel, polystyrene core is 202 lb — 112 ft² at 1.8 lb a foot. That weight is not trivia: it sets the spring, the opener and sometimes the header.
- This door is sold as R-9. The assembly is nearer R-4.0, because Two steel skins joined at every section edge conduct straight through the foam between them. The core can be R-18 and the assembly a third of it, which is why DASMA specifies a whole-door figure and why almost no advert quotes one. The advertised figure is the core at its thickest point; the one that matters is the whole door, and DASMA specifies it that way.
- Your garage touches the house, so the saving is real but indirect — and it is smaller than anyone selling the door implies. The door does not heat your house; it raises the garage from 11°F to 18°F on a design day, and the house then loses less into it through the shared wall. That is about $2 a year, which will not repay the insulation on its own.
- At 202 lb this door wants ¾ hp belt drive. Worth checking what is up there before the new door arrives: a heavier insulated door on an old half-horsepower chain drive is the commonest way an opener dies a year after a door goes on.
- The counterbalance has to be re-sized too, and a quote that reuses the old springs on a heavier door is quoting you a callback. This door needs about 25.5 inch-pounds per turn per spring — 0.2253 in wire, 30.4 in long. Ask whether new springs are in the price and what cycle rating they are.
- $25.14 a square foot installed. Fitting is priced per door rather than per foot — Fitting is priced per door, not per square foot: the tracks, the shaft and the setting out take the same time on an 8 ft door as on a 16 ft one.
On this page — 6 sections
What a garage door costs installed
The short version
- About $1,750 plain and $2,800 insulated on a 16 × 7 ft opening, fitted and with the old door taken away.
- The R-value on the sticker is the core. A steel door keeps roughly 45 per cent of it as an assembly.
- Insulation does not pay for itself on energy. Zero on a detached garage; about $6 a year on the best attached case.
- A heavier door needs new springs. Reusing the old ones is the commonest corner cut, and it comes back.
$1,750
Single-skin steel, 16 × 7
Fitted, old door removed
$2,800
Two-layer insulated
The common mid-range choice
$3,700
Three-layer polyurethane
Quietest, stiffest, heaviest
$5,500
Wood
Bought for how it looks
Fitting is priced per door, not per square foot — Fitting is priced per door, not per square foot: the tracks, the shaft and the setting out take the same time on an 8 ft door as on a 16 ft one. That is why a single 9 × 7 door costs nearly as much to install as a 16 × 7 one, and why the per-square-foot figure everybody publishes is more useful for comparing doors than for comparing jobs.
MaterialsEstimator, Garage door, spring and opener price survey · checked 2026-09-18
Whether the insulation returns anything, computed
Every garage door is sold on its R-value, and almost nobody checks the one thing that decides whether that R-value becomes money: is there anything heated on the other side of it?
Insulation slows heat leaving a heated space. An unheated garage has no heat to lose. So on a detached garage, raising the door from bare steel to R-18 saves exactly nothing on your energy bill — not a small amount, nothing — because there is no path from the garage’s temperature to your meter.
Where the garage touches the house it does something, and it is computable. An unheated garage floats at a temperature between outdoors and indoors, weighted by how much it loses each way:
T garage = (UA outdoors × T outdoors + UA house × T house) ÷ (UA outdoors + UA house)
- UA outdoors
- the garage shell and the door, losing heat to the street
- UA house
- the shared wall, or the floor of the room above — zero on a detached garage
- the effect of the door
- a better door lowers UA outdoors, so the garage settles warmer
Worked through — A 16 × 7 ft door on a garage with a room above, in climate zone 5: the garage sits at 15°F on a design day with a bare door and 25°F with a two-layer one. The house then loses less through the floor above — about $6 a year.
Door & Access Systems Manufacturers Association, DASMA technical data sheets, sectional doors and counterbalance · checked 2026-09-18
The R-value on the sticker is not the R-value of the door
A steel garage door is two skins with foam between them, and those skins meet at every section edge. Steel conducts about a thousand times better than the foam, so heat takes the short cut — straight through the frame of every panel, past all of the insulation.
The number in the advert is the core at its thickest point. The number that matters is the whole assembly, and DASMA specifies it that way precisely because the gap is so large.
| Construction | Advertised | Assembly | lb / ft² | What it is |
|---|---|---|---|---|
| Single-skin steel, no insulation | — | — | 1.25 | One layer of 25 or 27 gauge steel with a frame behind it. The cheapest door made, the lightest, and the one that drums like a skip lid when it rains. |
| Steel with vinyl-backed insulation | R-6.5 | R-2.9 | 1.5 | A layer of polystyrene held on with a vinyl sheet. Quieter than single skin and the insulation is real, though the vinyl tears and hangs off within a decade. |
| Two-layer steel, polystyrene core | R-9 | R-4.0 | 1.8 | Foam board sandwiched between the skin and a back sheet. The common mid-range door, and the point at which the thing stops sounding hollow. |
| Three-layer steel, polyurethane core | R-17 | R-7.7 | 2.3 | Polyurethane foamed in place between two steel skins, which bonds them into one stiff panel. Nearly twice the R of polystyrene at the same thickness, and much quieter — but half again as heavy, which the springs have to carry. |
| Wood or wood composite | R-3 | R-2.4 | 3.2 | The heaviest thing you can hang on a residential opening, and the one that needs refinishing. A 16 ft wood door can go over 300 lb, which changes the spring, the opener and sometimes the header. |
Windows make it worse, and they are the upgrade people want most. Glass is the weakest part of any assembly, so a row of panes across the top section takes a real bite out of whatever the door claims — on top of the five pounds each that the springs have to carry.
The weight is the part of the quote nobody reads
Going from a plain steel door to a two-layer insulated one on a 16 × 7 opening adds about sixty pounds. That number does not appear on any quote, and three things depend on it.
What changes when the door gets heavier
- The springs. The counterbalance is sized to the door's weight, so a heavier door needs a different spring — not the same one wound tighter.
- The opener. It only overcomes friction on a correctly sprung door, so it copes until the springs tire and then it carries the weight and fails.
- The cables and drums, on a big enough change. Less often, but worth asking.
- The header, on a wood door. Three hundred and fifty pounds over an opening framed for a hundred and forty is a structural question, not a fitting one.
- How it feels by hand. Pull the release and lift it halfway: a correctly balanced door of any weight stays where you put it.
The three measurements that can rule a door out
Width and height are the ones everybody takes. These three are the ones that turn a straightforward job into a different one, and all three are free to check before you get a single quote.
12 in
Headroom
Above the opening. Less needs a low-headroom kit
H + 18 in
Backroom
Depth behind the opening for the tracks
3¾ in
Side room
Each side, for the vertical track
Wind load
In coastal counties
A non-rated door fails inspection
| Low headroom — under 12 in | High lift — the door rises before turning | |
|---|---|---|
| When you need it | Ceiling too close to the opening | You want the ceiling back for a lift or storage |
| Parts cost | About $230 | About $480 |
| Changes the spring | No | Yes — different drums and cables |
| Changes the opener | No | Usually a jackshaft on the wall |
| Found when | Measuring, if you measure | Deciding, because it is a choice |
What goes wrong
01Buying insulation for the energy saving
It is what the upgrade is sold on and it is the one benefit that mostly is not there. Detached garage: nothing. Shared wall: about two dollars a year. Room above, cold climate: about six.
Instead — Buy it for the garage temperature, the floor above and the noise — all real and all immediate — and treat the bill as a rounding error. The calculator above prices your own case.
02Reading the advertised R-value as the door's R-value
It is the core at its thickest point. Steel skins meeting at every section edge conduct straight past the foam, so a steel door keeps about 45 per cent of the number on the sticker.
Instead — Ask for the whole-door figure, which DASMA specifies. If the supplier does not have one, you have learned something about the supplier.
03Reusing the old springs on a heavier door
The counterbalance is sized to the weight. A door sixty pounds heavier on the old springs is heavy to lift, fights you on the way down, and puts the difference through the opener.
Instead — Get new springs in the quote, in writing, with the cycle rating stated. The calculator above tells you the spring this door actually needs.
04Assuming the opener will cope
It will, until the springs start to tire. An opener only overcomes friction on a balanced door, so the failure arrives a year after the door and looks unrelated.
Instead — Check the opener's rating against the new door's weight before it is ordered. A half-horsepower chain drive under a heavy insulated double is a countdown.
05Not measuring headroom and backroom
Either can rule out a standard track, and both are found on installation day if nobody looked. The low-headroom kit is a couple of hundred dollars of parts and a conversation nobody wanted to have with the van already unloaded.
Instead — Measure both before you get quotes. Twelve inches above the opening, and the door's height plus eighteen inches behind it.
06Ignoring wind load in a coastal county
A non-rated door will not pass inspection, and finding out at inspection means buying the door twice.
Instead — Ask whether your county requires a rated door before choosing anything. It narrows the options and it is much cheaper to know first.
07Adding windows without counting the cost
Five pounds each for the springs to carry, a real bite out of the R-value, and a view of whatever is in the garage.
Instead — Buy them for the daylight, which is a good reason, knowing the other three. Frosted or obscured glass keeps the light and removes the view.
08Treating a door problem as a door problem
The door lasts twenty to thirty years, the springs six to twenty and the opener ten to fifteen. Most 'the garage door is broken' is a counterbalance or an opener on a door that is completely fine.
Instead — Do the balance test first — release the opener, lift halfway, let go. If it stays, the door is fine and you are looking at the opener.
- 01Measure the opening, not the old doorWidth and height of the hole in the wall. Then headroom above it and backroom behind it, because either can rule out a standard track.
- 02Work out the weight before anything elseArea times pounds per square foot for the construction. Everything downstream — springs, opener, sometimes the header — comes off that number.
- 03Decide where the garage sitsDetached, attached, or with a room above. This is what decides whether insulation returns anything, and it is the question no quote asks.
- 04Read the R-value as a core figureThen halve it, roughly, for a steel door. Ask for the whole-door number and see whether they have it.
- 05Check the opener against the new weightA heavier insulated door on an old half-horsepower chain drive is how an opener dies a year later.
- 06Insist on new springs in the quoteA different door weight needs a different counterbalance. Reusing the old springs is the commonest corner cut and the one that comes back.
- 07Check the wind load requirementCoastal counties require a rated door, and a non-rated one will not pass inspection.
The counterbalance is sized to the weight, and a quote that reuses the old springs on a heavier door is quoting a callback. That page works out the exact spring and turns the cycle rating into years.
The springs this door needs- Sectional door
- The normal residential door: four or five hinged panels that run up a curved track into the ceiling. Everything on this page assumes one.
- Section
- One panel. A 7 ft door is usually four sections, an 8 ft door five, and the number is what decides whether an 8 ft door needs a different track.
- Whole-door R-value
- The resistance of the assembly, not of the foam at its thickest point. DASMA specifies it this way precisely because the two are so different.
- Thermal bridging
- Heat taking a short cut through a conductive path. In a steel door the two skins meet at every section edge, so the steel carries heat straight past the insulation between them.
- Counterbalance
- Springs, cables, drums and shaft — the system that makes the door weightless. A heavier door needs a different one, and reusing the old springs is the commonest corner cut.
- Headroom
- The space between the top of the opening and the ceiling. Under about 12 in the door needs a low-headroom track kit, and it is the usual surprise on a retrofit.
- High lift
- Track that takes the door straight up before it turns. It buys ceiling space for a lift or storage, and it changes the cables, the drums and usually the spring.
- Jackshaft opener
- A motor mounted on the wall beside the torsion shaft instead of on the ceiling. It frees the whole ceiling and it is the answer in a garage with a high lift.
- Wind load rating
- Whether a door is engineered to stay in its tracks in a storm. Required by code in coastal counties, and a non-rated door in one of them will fail inspection.
- Backroom
- The depth from the opening to the back wall. A door needs roughly its own height plus 18 in, and a short garage can rule out a standard track before anything else.
- Photo eyes
- The pair of sensors near the floor that stop a closing door. Required on every powered door in the US since 1993, and the thing most often knocked out of alignment.
- Struts
- Horizontal reinforcing bars across the back of a section. A wide door without enough of them bows in the middle, and an opener pulling on a bowing door tears the top section.
Common questions
- How much does it cost to install a garage door?
- About $1,750 for a plain single-skin steel double door on a 16 × 7 ft opening, installed and with the old one taken away, and about $2,800 for the common two-layer insulated door. A three-layer polyurethane door is nearer $3,700 and wood can pass $5,500. A single 9 × 7 door runs around $1,800 insulated, because fitting is priced per door rather than per foot.
- Is an insulated garage door worth it?
- For comfort and noise, very often. For your heating bill, almost never — and this is worth being blunt about, because it is what the upgrade is sold on. On a detached garage the saving is exactly zero: there is no heated space on the other side of anything. On the best attached case, a garage with a room above it in a cold climate, the computed saving is about $6 a year against roughly $1,000 of extra door.
- Why does an insulated door not save energy on a detached garage?
- Because insulation slows heat leaving a heated space, and an unheated garage has no heat to lose. Raising the door's R-value makes the garage itself more temperate — genuinely useful if you work in there — but there is no path from that to your gas bill. The energy claim only works when the garage touches heated space or is heated itself.
- What does R-18 on a garage door actually mean?
- It is the resistance of the foam core at its thickest point. The door is two steel skins joined at every section edge, and Two steel skins joined at every section edge conduct straight through the foam between them. The core can be R-18 and the assembly a third of it, which is why DASMA specifies a whole-door figure and why almost no advert quotes one. So an R-18 door is nearer R-8 as an assembly. DASMA specifies a whole-door figure for exactly this reason; almost no advert quotes one.
- How much does a garage door weigh?
- A 16 × 7 ft door runs from about 140 lb in single-skin steel to 258 lb in three-layer polyurethane and 358 lb in wood, plus about 5 lb a window pane. It matters more than it sounds: the weight sets the springs, sets the opener, and on a wood door sometimes the header.
- Do I need new springs with a new garage door?
- Yes, if the weight changes at all — and going from a plain door to an insulated one adds sixty pounds on a double. The counterbalance is sized to the door, so reusing old springs means a door that is either heavy to lift or fights you on the way down, and an opener carrying the difference. It is the commonest corner cut in a cheap quote. Ask whether new springs are in the price and what cycle rating they are.
- Will my existing opener lift a new insulated door?
- Probably, and that is not the same as should. An opener only overcomes friction on a correctly sprung door, so it copes right up until the springs start to tire — then it carries the weight and dies. A ½ hp chain drive is rated to about 200 lb and a ¾ hp belt drive to 320. Check yours against the new door's weight before it arrives.
- What if I have low headroom?
- Under about 12 inches between the opening and the ceiling you need a low-headroom track kit, which runs the rollers on two levels. It is around $230 in parts and it is the commonest surprise on a retrofit — measure it before you get quotes, not after.
- Steel, wood or composite?
- Steel for almost everybody: lighter, cheaper, and it does not need refinishing. Wood is the heaviest thing you can hang on a residential opening, needs maintenance, and costs three times as much — it is bought for how it looks, which is a legitimate reason as long as it is the stated one. Composite splits the difference and is worth pricing against both.
- How long does a garage door last?
- Twenty to thirty years for the door itself, which is far longer than the springs (six to twenty) or the opener (ten to fifteen). That mismatch is worth knowing: most 'garage door problems' are counterbalance or opener problems on a door that is completely fine.
- Do windows in a garage door cost anything besides money?
- About 5 lb each in weight, which the springs carry, and a real bite out of whatever R-value the door claims — glass is the weakest part of any assembly. They also give a view in, which matters if the garage holds anything worth taking. Buy them for the light, knowing the rest.
- What is wind load rating and do I need it?
- Engineering that keeps the door in its tracks under storm pressure. It is required by code in coastal counties across the Gulf and Atlantic, and a non-rated door in one of them will not pass inspection. If you are anywhere near the coast, ask the question before you choose a door rather than after.
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About the author
Pablo Ruiz Quintero — Editor
Editor of MaterialsEstimator. Decides which documents count as a source, what every default value is, and where the line sits between what the reader parses and what the engines compute.
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