Dock levelers

Dock Leveler Repair in Denver

When a dock leveler will not rise or hold a load, trucks wait and the dock stops. G Brothers repairs dock levelers, dock seals and dock bumpers across the Denver metro, along with the loading dock door above them, with 24/7 emergency dispatch and common parts on the truck.

What this service covers

Real work by background-checked local technicians, quoted at a flat rate you approve before anything begins.

  • Dock levelers

    Mechanical, hydraulic and air-powered levelers that will not rise, will not stay level, drop too fast or will not let the lip extend.

  • Lips, hinges and springs

    Bent or stuck lips, worn hinge pins, and the springs and chains that lift a mechanical deck.

  • Hydraulics and controls

    Leaking cylinders and hoses, a weak or noisy power unit, and push-button controls that do nothing.

  • Dock seals

    Torn, flattened or worn seal pads and head pads that no longer close the gap around a trailer.

  • Dock bumpers

    Worn, cracked or missing bumpers replaced before trailers start hitting the building.

  • The dock door above it

    Springs, track, sections and operators on the same visit, through our loading dock door repair work.

Signs a dock leveler needs repair

  • The deck will not rise when you pull the chain or press the button.

  • The lip will not extend, will not fold back, or does not rest flat on the trailer bed.

  • The deck sits above or below the dock floor when it is stored.

  • The deck drops fast or bounces when a forklift drives onto it.

  • Oil on the pit floor, or the deck rises slowly on a hydraulic unit.

  • Loud bangs, grinding or a deck that rocks under a load.

What a dock leveler does

A dock leveler is the hinged steel deck at the edge of a loading dock. Trailer beds sit at different heights, so the deck tilts up or down and puts its lip on the trailer floor. That gives a forklift or a pallet jack a safe ramp between the building and the truck. When a leveler stops working, the dock usually stops with it.

Mechanical, hydraulic and air-powered levelers

Mechanical levelers lift on springs. Someone pulls a chain to release the deck, it rises, and the operator walks it down onto the trailer. Worn springs, a stretched chain or a sticky hold-down are the usual faults. Hydraulic levelers raise the deck with a cylinder and a small power unit at the push of a button. Leaks, low fluid, a tired pump and worn seals are the common problems. Air-powered levelers lift the deck on an air bag filled by a blower. A torn bag or a blower that has failed will leave the deck flat. Tell us which kind you have when you call, so the technician brings the right parts.

Dock seals and dock bumpers

A dock seal is the padded frame around the dock door that presses against the back of the trailer. It keeps out weather, dust and pests, and it keeps heated or cooled air inside while the truck is loaded. Once the pads are torn or flattened, the gaps around the trailer let all of that through, so we replace the worn pads and head pads. Dock bumpers sit on the dock face below the door. They take the hit when a trailer backs in, so the wall, the leveler and the door do not. A cracked or missing bumper puts that force into the building, so we replace bumpers before the damage spreads.

One dock, one visit

A loading position works only when the door, the leveler, the seal and the bumpers all work together. A door that will not open all the way keeps the leveler from running, and a bent bumper can let a trailer push into the door. Because we work on the whole position, one technician can check the leveler, the seal, the bumpers and the dock door on the same visit. If the doors on your building need regular service, a commercial maintenance plan can cover the dock too.

Before the technician arrives

If a leveler is stuck up, stuck down or will not hold a load, take it out of use. Keep forklifts and people off the deck, and do not stand under a raised deck or lip. Do not try to free a stuck lip with a forklift. If a trailer is at the dock, keep it there until the leveler is safe to cross or is stored. When you call, tell us the type of leveler, what it is doing, and how many trucks the dock handles in a day.

How it works

  1. 1

    Call or book online

    Tell us the door, what it is doing, and how many times a day it runs. Emergencies are dispatched around the clock.

  2. 2

    On-site diagnosis and flat quote

    Your technician finds the real cause and gives you one flat price to approve before any work begins.

  3. 3

    Fixed, cycled and tested

    We complete the work, balance the door, test the operator and safety devices, and run the door through full cycles before we leave.

Why facility managers call G Brothers

Fast response, day or night

Our average response is about an hour and a half, and that holds for a commercial call at 2am.

Parts on the truck

Common springs, cables, rollers and operator parts are stocked on the truck, so many repairs are finished on the first visit.

Every operator, every brand

Jackshaft, trolley, hoist and gate operators on any make, so we repair the equipment you already have.

Insured, with paperwork fast

Licensed, insured, background-checked technicians, with a certificate of insurance usually sent within 24 hours.

One account for every property

Property managers can put every door on every building on one account.

Warranty on the work

One year on labor and three years on parts.

More than 40 years in the trade

Family-owned, BBB accredited, and rated 4.9 stars across 400+ Google reviews.

Reviews

Rated 4.9 across 400+ Google reviews

Property managers, contractors and homeowners trust G Brothers for fast, honest garage door work.

4.9

Based on 400+ Google reviews

We had a great experience with this garage door company! They responded quickly and came out right away to fix our garage door. The service was fast, professional, and very affordable. Everything is working perfectly now, and we really appreciate how easy they made the whole process. We would definitely use them again in the future and highly recommend them to anyone needing garage door repairs!

Sara F.

Google review • Jun 2026

After putting off a broken garage spring for over a year, I finally called G Brothers Garage Doors. I only wish I had done it sooner. I found them on social media and got an immediate response. Scheduling was easy, and Boddrick showed up exactly when he said he would at 8:45 AM. He took one look at the issue and confidently said he could fix it and had the springs in the truck. He replaced both springs quickly for the exact quoted price with no surprises. While testing the door, he noticed noise in the rails and took the time to tune everything up as well. Professional, knowledgeable, efficient, and honest. The kind of service that is hard to find these days. If you need garage door work done right the first time, call G Brothers. No question. Highly Recommend!

David B.

Google review • Apr 2026

G Brothers came to check out our garage door issue within a half an hour of calling them. They turned around a quote within that same day and I was able to schedule my garage door opener replacement within 48 hours. This was much faster than I expected (my issue wasn’t an emergency). The garage door works much better now than I knew it could (older garage door). I highly recommend working with G Brothers! And will certainly be going back to them with any future garage door needs.

Kate H.

Google review • Apr 2026

I highly recommend this company. They did a great job! I needed a new 2-door and single door garage door and they came the very next day, did a great job, and were the best experience. I've had at least 3 companies come out and do work on my garage doors over the past 10 years and wouldn't use any of them again. I will be using G Brothers again and again, they did great work at the price they quoted. They were on time, did the work quickly, and it looks and works great!

Jay D.

Google review • Oct 2025

So grateful for these guys, they helped me out so quickly and at a great price! When my old door jammed up and got crunched they were the only ones who could within a day fix it and they work so fast it only took them an hour and a half to install a completely new door and springs, great work ethic and super nice guys! Other companies told me it would be weeks till they could get a new door and wanted to charge me thousands more, I would highly recommend these guys to anyone!

Everett M.

Google review • Sep 2024

Upfront, flat-rate pricing

Your estimate is free. We look at the door on site, then give you one flat price to approve before any work begins, with an honest recommendation on whether a repair or a replacement is the better value for a door that has to keep working.

A G Brothers technician servicing a residential garage door

Visit us

Find G Brothers Garage Doors

Reach out for same-day garage door service. Our technicians come to you for every repair, replacement, and install.

Our shop

7700 W 9th Ave, Lakewood, CO 80214

Open 24/7 for emergency garage door service.

FAQ

Related questions

Quick answers about dock leveler repair and related work from the G Brothers team.

Do you service loading dock doors and levelers?

Yes, we service loading dock doors and levelers across Denver: dock doors, seals, bumpers, and mechanical and hydraulic levelers as one position.

Read full answer
Do you offer emergency commercial garage door service?

Yes. We run 24/7 emergency commercial garage door service across Denver, fixing most stuck or unsecured doors on the first visit with stocked trucks.

Read full answer
What types of commercial warehouse doors are there?

The main commercial warehouse doors are sectional, rolling steel, high-speed, fire-rated, and dock doors. Here is how each works and which fits.

Read full answer

Service areas

Dock Leveler Repair across the Denver metro

We provide dock leveler, dock seal and dock bumper repair across the Denver metro, including Denver, Lakewood, Aurora, Commerce City, Arvada, Wheat Ridge, Golden, Englewood, Littleton, Centennial, Westminster, Thornton, and Broomfield, plus surrounding communities. Not sure if you are in range? Call and we will let you know. For the overhead and roll up doors on the rest of the building, see commercial overhead door repair.

Ready to get started?

Book same-day service or a free estimate. Available 24/7.