Commercial · rolling steel and service doors

Roll-up and rolling steel door repair in DFW

One curtain, one barrel, and no room for guesswork.

Roll-up doors, properly called rolling steel and rolling service doors: curtain, guides, barrel and counterbalance, repaired across DFW with the written estimate going to whoever approves it.

Call (469) 281-7750 Request my free estimate

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If the door is unsafe to use right now, a person answers 24/7.

Calls Answered 24/7 Visits 7 AM–11 PM, seven days Serving DFW Since 2018

A tall rolling steel door on a metal building

The online request needs verification. To ask for help now, call (469) 281-7750.

Free Estimates

Tell us what the door is doing.

Step 1 of 3

01 What service do you need?

Service

Pick the closest match. We’ll confirm on the call.

Phone number

We use this number to call about your request.

02 Where’s the door?

Street address

City

State

ZIP code

What’s going on?(optional)

A quick note on the door helps.

03 How do we reach you?

Full name

Email for your receipt(optional)

Optional. We send a receipt here if you give an email. We call the phone number above about the request.

When do you need service?(optional)

A preference, not a booking. You’ll set the time on the call. Skip it and we treat it as ASAP.

I agree that Heather Window & Door may call or text me at this number about this request. Message and data rates may apply; texting STOP ends messages.

Got it

A real person will call you back.

If the door is unsafe to use right now — off its track, a snapped spring, won’t close — call us instead: (469) 281-7750.

We’ll call you about this door. Privacy policy Rather show it? Text a photo to (469) 281-7750.

What you can count on

5-Year Warranty on All Parts & Labor Five years on parts and labor, every repair and every install.

Free Estimates No charge if you decline.

Calls Answered 24/7 A person picks up, not a machine or a phone tree.

Serving DFW Since 2018 Homes and businesses, from Coppell.

Insured & Bonded Background-Checked Technicians.

Same-day service on most repairs.
Upfront pricing. The price is on the estimate you approve before work starts, and the invoice matches it.

What the door is

Rolling steel doors, described plainly.

A rolling steel door on a metal building

A rolling steel door is not a sectional door. Instead of hinged sections on a track, it is a single curtain of interlocking slats that rolls up onto a barrel above the opening, with the counterbalance inside that barrel and the curtain running in guides down each side.

That difference is the whole job. There are no rollers and hinges to replace; there are slats that can be bent, guides that can be packed with grit or knocked out of line, a barrel with springs inside it, and a bottom bar that has to land square for the door to seal or lock.

Where it is usually working

Warehouses and storage The commonest place they turn up, often several to a building.
Service counters and interior openings Smaller rolling doors closing a counter or a corridor.
Yard and perimeter openings Where the door is as much security as weather.
Self-storage and multi-unit sites Many small doors, all cycling, all aging at the same rate.
Parking garages and mechanical rooms Openings where a sectional door has nowhere to sit under the ceiling.

What actually fails

The six things we are called out for.

Described the way a facilities manager sees them rather than by part number. If what your door is doing is not on this list, call and describe it — a person answers 24/7.

Bent or displaced slats Vehicle contact is the usual cause. A curtain that has been hit rarely runs cleanly again without work.
The curtain out of its guides Once one side leaves the guide, the door jams part way and forcing it bends more slats.
Guides packed or knocked Grit, debris and a forklift nudge all end the same way — a door that binds.

Counterbalance inside the barrel A heavy curtain the barrel is no longer helping means an operator working far beyond its design.
The bottom bar Bent, or no longer landing square, so the door will not seal or lock.
Operator and controls Chain hoists, motors, limits and the safety devices around the opening.

Before you call

What to have ready.

A few facts and a photo or two will do.

Opening size Width between guides, height to header, and anything in the headroom above or sideroom beside it.
Curtain and slats Slats or a rod grille? Photograph the slat ends: makers may use their own designs, so similar slats may not interlock.
How it operates Hand chain, crank or motor. For a motor, its brand and any sensing edge or photo eyes.

Labels Any fire label, drop-test record on the guide or wall, and maker name and serial number. Tell us if there is a fire label.
What happened, and where A hit, wind or slow change; closed, open or stuck partway; interior or exterior; wind exposure.

What applies

What to know and ask.

The authority having jurisdiction decides what applies to your building.

Fire doors and NFPA 80 NFPA 80 requires a rolling fire door to be inspected at least annually, with two drop tests, even if unused. The authority may ask the tester for documented training.
Labels and insurers A fire label marks a listed, tested door. It should stay legible and not be removed or defaced. For insurance, an insurer’s representative may be the authority.

Motor operators and UL 325 With no working sensing device, UL 325 requires a motorized rolling door to be closed by holding the button. DASMA adds that the door must be visible from the switch.
Wind load Wind resistance is a design pressure, not a wind speed, usually set for each building by a design professional. Guide and jamb attachment count as much as the door; windlocks stay on.

Upkeep rhythm

How often to look.

DASMA and two makers publish these; your door’s manual sets the real intervals.

Weekly DASMA says test the sensing edge at both ends; Cookson adds the curtain and bottom bar.
Every three to six months Watch powered doors for a straining operator or sagging curtain. Overhead Door’s manual lists oiling moving parts, but never a fire door’s clutch, at three months, and greasing bearings and a fire-door drop test at six.

Every year DASMA says a trained door systems technician should inspect at least annually, or as the maker says. NFPA 80 sets that minimum for fire doors.
After wind or flooding DASMA calls for an immediate evaluation of every door. A fire door a vehicle has hit needs a technician.

Sources

All sources read 24 September 2026. Linked so you can check them rather than take our word for it.

What a visit involves

The estimate is the document you route.

A technician looks at the opening with you and writes the price before anything starts. Nothing begins until it comes back approved, and the invoice matches the number you approved.

Do not keep trying it A rolling door that has jammed damages more slats every time it is run. Stop, and tell us what it did.
Access and clearance The barrel is above the opening and the work happens at height, so we need to know what is underneath it and when the area can be cleared.
Security first where the opening is the perimeter If a yard or a building cannot be secured, say so — it changes how we dispatch.
The estimate names the parts Slats, guides, bottom bar, counterbalance, operator — itemized, so an approver can see what they are approving.
5-Year Warranty on All Parts & Labor. Five years on parts and labor, every repair and every install.

Describe it however makes sense to you

Tell us which opening, and when it has to run.

Tell us about the opening, the door and the traffic it has to carry. A technician measures on site, and nothing is ordered until the written estimate comes back approved.

No spec sheet needed. The opening and how the dock runs are enough to start.
The written estimate is free. Nothing owed if you pass.
Nothing is ordered until the estimate comes back approved.

A commercial sectional door with a row of windows

Free Estimates · about a minute
Calls Answered 24/7

The online request needs verification. To ask for help now, call (469) 281-7750.

Free Estimates

Tell us about the opening.

Step 1 of 3

01 What service do you need?

Service

Pick the closest match. We’ll confirm on the call.

Phone number

We use this number to call about your request.

What’s going on?(optional)

A quick note on the door helps.

02 Where’s the door?

Street address

City

State

ZIP code

03 How do we reach you?

Full name

Email for your receipt(optional)

Optional. We send a receipt here if you give an email. We call the phone number above about the request.

When do you need service?(optional)

A preference, not a booking. You’ll set the time on the call. Skip it and we treat it as ASAP.

I agree that Heather Window & Door may call or text me at this number about this request. Message and data rates may apply; texting STOP ends messages.

Got it

A real person will call you back.

If the door is unsafe to use right now — off its track, a snapped spring, won’t close — call us instead: (469) 281-7750.

We’ll call you about this door. Privacy policy Rather show it? Text a photo to (469) 281-7750.

Not this door?

The other commercial openings.

Each page says what that door type is, what fails on it, and what a visit involves. Or start at the commercial overview.

Sectional overhead doors The door most service bays actually have. Loading dock doors When a bay is down, the trucks are the clock. High speed doors Built to spend as little time open as possible.

Questions people ask

Straight answers.

Do you repair roll-up doors?

Yes. Roll-up is what most people call a rolling steel door: one curtain of slats that rolls onto a barrel above the opening. The repair is the same whatever the name.

What is the difference between rolling steel and a sectional door?

A sectional door is hinged sections on a track; a rolling steel door is one curtain of slats that rolls onto a barrel above the opening, with its counterbalance inside the barrel and guides down each side.

The door is jammed half open. Should we keep trying it?

No. Each attempt bends more slats and can pull the curtain further out of its guides. Stop, keep people clear, and call.

Can individual slats be replaced?

Often, depending on the profile and what the impact did. It is one of the first things a technician establishes on site.

Can a fire-labeled door be repaired?

A fire door is repaired with its original maker’s parts; if those are gone, the whole door may need replacing. Modifications should also be arranged with the maker and the authority having jurisdiction.

How hard should a hand chain pull?

DASMA puts the force to open at no more than 35 pounds on a hand chain and 25 on a crank. Much more can mean a counterbalance problem. Leave the tension wheel alone; call for service.

Close the door before a storm?

Yes. DASMA says close it before high wind, because a door’s rating is valid only when fully closed. It does not recommend running a rolling door in high wind; the force needed rises, especially with windlocks.

Why hold the close button?

It may be the safeguard working. Under UL 325, a door without a working sensing device, such as an edge or photo eyes, must be closed by holding the button. Some operators fall back to that mode when a device faults.

Steel door, grille or counter door?

A rolling service door has interlocking metal slats and may or may not be fire-rated. A rolling grille uses linked rods and tubes. A counter door closes a counter-service opening; DASMA lists its fire-rated version separately.

Can we prop a rolling door open?

If it is a fire door, no: NFPA says wedging one open is prohibited, since it defeats automatic closing. DASMA says any other rolling door that must be propped open needs service; it should stay open on its own.

Are you insured?

Yes. Insured & Bonded, with Background-Checked Technicians.

How does approval work on a PO?

The written estimate is the document you route. Nothing starts until it comes back approved, and the number on the invoice is the number you approved.

Do you charge to come out?

No. We look at the door with you and give you a written estimate. You approve it before any work starts, and there is no charge if you decline.

What does the warranty cover?

Five years on parts and labor, every repair and every install. The scope is on the estimate you approve and on the invoice.

More answers on the questions page. Financing Available — how it works, in plain words.

If this did not answer you, call. A person picks up. (469) 281-7750

Where we work

From Coppell, across DFW.

Every city on this map is a drive from our base in Coppell, for a house or a commercial building. Tap yours for the local page, or call — a person answers 24/7.

Call (469) 281-7750 Request my free estimate

A rolling steel door over a dock leveler

Free Estimates. A person answers 24/7.

Tell us what the door is doing. The visit and the written estimate are free, nothing starts until you approve the price, and most standard repairs are paid after the work is done.

Call (469) 281-7750 Request my free estimate