Full 25-point door and opener safety check with every visit - springs, cables, rollers, tracks, and your LiftMaster or Chamberlain opener included
You get a price before we start. It does not change when the truck arrives.
Trusted Garage Door Installation for Thornton Homeowners
A new garage door installation in Thornton typically runs $700-$2,200 for a standard single or double door, and most jobs are measured, ordered, and installed within two to three weeks. That’s the number we quote before we order anything, because at Servo Garage Doors Thornton, we don’t work from estimates scribbled on a notepad. We work from a written scope and a flat price, handed to you before any work starts. Since 2015, Marcus Deller and the team have put in more than 18,000 garage doors across the Denver metro area, every one with a documented photo record when the technician leaves. Call (720) 575-1024 and you’ll talk to a person, not a phone tree.
What Our Garage Door Installation Service Includes
Every installation we do in Thornton starts with the same question: what does this door need to do for your house? Not what’s in stock, not what’s easiest for us to hang. The answer determines the door, the track system, the spring sizing, and the written price you see before any work begins. Here’s what that looks like across the services we install.
New Door Installation
This is a full replacement: we remove the existing door, tracks, and hardware, then install a new door system sized to your opening. You need this when the door is structurally compromised, not just noisy or slow, or when the cost of repeated repairs over two or three years has passed the cost of a new door. Servo Garage Doors Thornton measures the opening, checks the framing, and quotes a flat installed price for the full system before we order a single part. The written scope includes removal, haul-away, installation, spring setup, and the documented photo record of what we found and what we left behind.

Single Car Door
A single car door is a door up to roughly 9 feet wide and 7 to 8 feet tall, the standard for most one-car garages in older Thornton neighborhoods like Woodglen and Eastlake. You need installation when the existing door is dented to the point of binding, has a rusted bottom panel, or the opener has ripped the top panel off its hinges. We size the torsion spring to the exact weight of the new door, not the other way around. That matters more than most people realize: a spring that’s over- or under-wound shortens the life of the door and the opener, and it’s the most common mistake we correct on doors installed by other companies.

Double Car Door
A double car door spans up to 16 feet and carries significantly more weight, which means the spring system and the horizontal track reinforcement have to be right on the first day. You need this installation when a build-out or remodel expands the garage opening, or when a wide single door has sagged in the middle and the panels no longer align. We quote double doors with the spring cycle rating stated in writing, so you know how many open-and-close cycles the spring is wound for before you sign anything. That number, usually 10,000 or 20,000 cycles, is one of the clearest indicators of whether a door was installed by someone who planned for decade-long use or someone who just hung it and left.

Custom Garage Door
A custom door is any door made to a nonstandard size, material, or sightline, typically for a modern home where the garage faces the street or for an odd-sized opening in an older Denver-area build. You need this when no off-the-shelf door fits the rough opening, or when you want a door that matches the house’s architecture rather than the subdivision’s default. Servo Garage Doors Thornton works with manufacturers to spec the door, then verifies every dimension on site before the order is placed. The written scope includes the exact model, insulation value, panel material, and finish, so there is no ambiguity about what’s arriving on the install date.

Steel Doors
Steel doors are the most common choice in Thornton for one simple reason: they hold up to hail, wind, and the temperature swings between a January night and a July afternoon better than most alternatives. You need a steel door when the current one has rust-through at the bottom panel, dents that have creased the panel skin, or you want a door that insulates the garage properly. We quote steel doors with the gauge and insulation value on paper, not just “insulated” as an adjective. A 24-gauge steel skin with a polyurethane core is a very different door than a 27-gauge skin with polystyrene, and the price should reflect that; ours does.

Wood Doors
Wood doors are for looks and for homes where the garage is the first thing you see from the street; they carry a real maintenance obligation, and we say so plainly. You need wood when the house demands it aesthetically, or when a neighborhood association has a material requirement in the covenants. Servo Garage Doors Thornton installs wood doors with the clear understanding that they move with Colorado’s humidity swings, and we specify the sealant and maintenance schedule in the written scope. We don’t upsell wood, and we don’t steer people away from it either; we tell you what it costs to own, and we hang it right.
Every installation, regardless of material, includes the same closeout: photos of the full track system, spring setup, opener mount, and panel alignment delivered to you before our technician pulls out of the driveway. That’s Clause 4 of The Haven Standard, and it’s been our rule since day one.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Brands We Service for Garage Door Installation

We install and service Doors from LiftMaster, Chamberlain, Clopay, and Amarr, among others. LiftMaster and Chamberlain are the openers we see most often in Thornton garages, and we carry their OEM logic boards, safety sensors, and belt assemblies. For door panels and full door systems, Clopay and Amarr are the manufacturers we quote most often, because their panel profiles and insulation options cover the range of what Thornton homes actually need.
If you have a Craftsman or Raynor door already in place, we can match panels, hardware, or run a full replacement on the existing track. We’re not tied to a single factory, which means the door we quote is the door that fits your opening and your budget, not the one we happen to have a dealer agreement with. Whatever brand is on your garage right now, we can put a written number in front of you before anything gets ordered.
Before
AfterSigns You Need Garage Door Installation Right Now
- The door sags in the middle when you start to open it. A visible sag on a double door usually means the horizontal track or the panel hinges have taken more load than they’re rated for. It won’t recover on its own, and eventually the panel joint will fail and drop the door onto the track or the floor.
- The bottom panel is rusted through or crushed from an impact. Rust-through at the bottom is common in Thornton because of snow melt and road salt carried in on car tires. Once the panel skin is breached, water gets into the core and the panel loses its structure, and the door stops sealing against the threshold.
- You’ve replaced springs, cables, or rollers more than twice in five years. That’s not normal wear; it’s a sign the door is out of balance or the original components were undersized. Replacing the door with a properly sized system usually costs less than the third or fourth repair cycle, and the written scope makes that comparison easy to see.
- The opener struggles to lift the door, even after a fresh adjustment. If the opener was fine a year ago and now sounds like it’s pulling a dead weight, the door itself may have gained weight from water absorption or the spring may be losing tension. A new door with a matched spring solves the root cause instead of burning out the opener.
- Panels are dented and creased from hail or a vehicle bump. Thornton gets real hailstorms, and a door with multiple dented panels loses both curb appeal and structural straightness. If more than two panels are damaged on a ten-year-old door, replacing the door is usually the math that makes sense, and we’ll show you the numbers side by side.
Our Garage Door Installation Process - Step by Step

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Measure and document. We come to your Thornton home, measure the rough opening, the headroom, the sideroom, and the floor slope, and photograph the existing setup. The measurements go on the written scope, not in a technician’s memory. That’s why the price we quote is the price you’d pay, not an estimate that changes later.
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Written scope and flat price. Before we order anything, you get a document listing the door model, size, material, insulation value, spring cycle rating, opener model if applicable, and the total installed price. Clause 1 of The Haven Standard is the rule here: a flat, written price and written scope are delivered before any work starts, no exceptions.
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Order and schedule. We order the door and hardware, and we give you a scheduled install date before we leave the first visit. There’s no “we’ll call you when it comes in” without a date on it. If a manufacturer delay happens, you get a text from us; you don’t have to call and ask where the door is.
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Installation and photo record. On install day, our background-checked, uniformed technician removes the old system, installs the new door, winds the springs to the cycle rating on your scope, sets the opener limits, and tests the full cycle. Then the technician photographs the completed work: track alignment, spring setup, sensor placement, and panel fit. Those photos are yours before the technician leaves.
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Walkthrough and warranty. You get a written summary of what was installed, the warranty terms, and the care expectations for the door material you chose. If something is not right within 365 days, we come back and make it right. That’s the 365-Day Done Right Promise, and it’s written, not handshake.
How Much Does Garage Door Installation Cost in Thornton?
A new door installation in Thornton typically runs $700-$2,200, with the spread driven by door size, material, insulation level, and whether you’re also replacing the opener. A basic single steel door on a standard opening often lands in the $700-$1,100 range. A double door with a mid-grade steel build and a polyurethane core usually sits between $1,200 and $1,800. Custom sizing, wood, or a high-cycle spring configuration can push toward the top of the range, and we’ll tell you why in writing before any purchase happens.
| Installation Type | Price Range (Thornton) |
|---|---|
| Single Car Door (Basic Steel) | $700 - $1,100 |
| Single Car Door (Insulated/Mid-Grade) | $1,000 - $1,400 |
| Double Car Door (Basic Steel) | $1,100 - $1,600 |
| Double Car Door (Insulated/Mid-Grade) | $1,400 - $1,800 |
| Custom or Wood Door | $1,800 - $2,200 |
| Opener Installation (Add-On) | $250 - $550 |
The price is quoted and agreed before any work starts, and it doesn’t move after the fact. What affects the number is the door itself, not our mood on install day: material, gauge, insulation value, size, and whether the opener needs replacement. To avoid overpaying, get the spring cycle rating and the gauge on paper with any quote you’re comparing against. A “good deal” on a door with a 5,000-cycle spring isn’t a good deal; it’s a door that will need spring work in four years. Every Servo estimate includes a full written scope, and our Free Second Opinion applies to any written estimate from another company, no coupon needed.
Garage Door Installation Near Thornton - Our Service Area

We install doors throughout Thornton, from the older neighborhoods around Woodglen and Eastlake to the newer developments north and east of the city. For homes in Northglenn and Broomfield, we’re typically on site for the measure within a day or two. We also cover Westminster, Commerce City, Brighton, Denver, Arvada, Wheat Ridge, Lakewood, Boulder, and Golden. If you’re in any of these cities, the process is the same: measure, written scope, flat price, install, photo record. See our home page for the full overview, or start with our detailed Garage Door Installation in Thornton page if you’re researching this service specifically.
Serving Thornton, CO - Our Local Coverage Area
We’re based in the Thornton area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - Garage Door Installation in Thornton

Garage door installation is the complete removal of an existing door system and the installation of a new door, tracks, springs, and hardware sized to your opening. It’s a structural job, not a repair, because the door, spring tension, and track alignment all have to be correct on the first day or the system wears unevenly from the start. At Servo Garage Doors Thornton, installation includes a written scope, a flat price, and a documented photo record when the technician leaves. We don’t consider it done until you’ve seen the photographs of the completed work. Call (720) 575-1024 and we’ll walk you through what’s involved before we ever touch the door.
A standard single or double door installation takes one workday on site, typically four to six hours from arrival to final walkthrough. The full timeline from your first call to a working new door is usually two to three weeks, because the door is ordered to your specific measurements and shipped to our facility before the install date. Custom and wood door orders can add a week or two, and we’ll tell you the expected lead time in writing before you commit. If you need the old door gone faster, we can sometimes accommodate emergency removals for safety situations, and the phone is answered 24/7 at (720) 575-1024.
Most installations in Thornton run between $700 and $2,200, with single basic steel doors at the low end and custom or wood doors at the top. The exact number depends on door size, material, insulation value, and whether the opener is replaced at the same time. Your written scope from Servo Garage Doors Thornton will show the door model, size, spring cycle rating, and total installed price before any work starts. The price you sign is the price you pay; there is no change order after the fact. For an exact quote on your opening, call (720) 575-1024, and we’ll schedule a measure at no cost to you.
Yes, and we typically install them in most Thornton homes because they’re the most requested brands on the market. If your existing LiftMaster opener is less than five years old and in good shape, we can often keep it and simply mount it on the new door, which saves you the $250-$550 cost of a new opener. Chamberlain and LiftMaster share the same parent engineering, with LiftMaster aimed at professional install and Chamberlain at retail; both are openers we stock OEM parts for, so wiring and logic board replacement are straightforward on install day. We carry parts for Craftsman and Raynor openers as well. Call (720) 575-1024 and tell us what’s on your wall now, and we’ll tell you if it should stay or go.
If your existing door is off the track, stuck open, or compromised to the point that the house is unsecured, we treat that as an emergency and our live phone coverage operates 24/7, including holidays. A real person answers, gets a technician’s name back to you, and sends an on-the-way text, not a callback window. For true emergency service, we can secure the opening immediately and install the replacement door on the next available schedule. In most Thornton cases, we can handle emergency replacement within 24 to 48 hours depending on door availability. Call (720) 575-1024 and we’ll assess it over the phone first.
Every garage door installation we do in Thornton is covered by the 365-Day Done Right Promise: if it’s not done right, we make it right. That’s a written promise with a scope and a photo record behind it, not a verbal assurance. Manufacturer warranties on the door itself vary by brand and model, and we’ll spell out the terms in writing before any work starts. The springs are covered by their cycle rating, meaning if a 10,000-cycle spring fails a year in, we replace it under warranty. Call (720) 575-1024 for the specific warranty terms on the door you’re considering.
Clear the garage so the technician has four to six feet of working space on each side of the opening, park vehicles outside, and plan to leave the garage door open for the duration of the install. Move anything fragile from the walls near the track; the old tracks and hardware come down in a way that can jar nearby items. If you have a door from a company like Craftsman or Raynor, you don’t need to do anything differently, but make a note of any previous repairs so we can include existing hardware in the scope. The technician will handle all the rest. Call (720) 575-1024 with any questions before your install date.
Schedule Your Garage Door Installation Service in Thornton Today
If your garage door is sagging, rusted through, or simply at the end of its life, we’ll put a flat written price in your hands before we order a thing. No pressure, no surprises, no “it’ll be about this much.” Call (720) 575-1024 for a free measure and written estimate, and we’ll walk you through exactly what a new door will cost in Thornton, down to the dollar. Whether you’re in Thornton, Northglenn, or Broomfield, the process starts with one conversation and ends with a photo record of the completed door in your hands. Call today and talk to a real person.
Written by Marcus Deller, Owner at Servo Garage Doors Thornton, installing garage doors in Thornton and the Denver metro area since 2015.






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