Frequently Asked Questions

Most standard repairs take between 45 minutes and two hours from the time we start working. A broken torsion spring on a typical North Hollywood ranch home is usually a one-hour job. Replacing cables, rollers, or a bent track might run 90 minutes. Full door replacements are scheduled by the half-day, since we need to remove the old door, inspect the framing, and install and balance the new one properly. We arrive with springs, cables, and openers on the truck so we can finish in one visit.

A tune-up includes lubrication of all moving parts, tightening of hardware, balance testing, safety sensor alignment, and a full inspection of springs, cables, rollers, and the opener. We adjust spring tension so the door stays put at any height, which reduces motor strain. In North Hollywood's dusty climate, we often find track buildup and dried rollers that make the door noisy or jerky. After a tune-up, your door should run quiet and smooth. We recommend one every year or two, depending on use.

We schedule appointments in arrival windows and call 30 minutes before we head your way. Our hours are Monday through Friday 7:00 AM to 8:00 PM, Saturday and Sunday 7:30 AM to 8:00 PM. We'll be there when we say, and if we're running behind, you'll know before you've spent the morning waiting. Carl Dutton built our scheduling system around respect for your time, because we've all been on the wrong side of a four-hour window that turned into six.

We focus on residential garage doors and openers for single-family homes, townhouses, and small multi-family buildings. That covers the vast majority of doors from North Hollywood to Glendale. For heavy-duty commercial roll-up doors or loading dock equipment, we'll refer you to a specialist who handles that scale of work. We don't take jobs we're not equipped to stand behind.

We install Raynor and Craftsman residential doors, and we service all major brands including Amarr, Clopay, Wayne Dalton, and others. Raynor's insulated steel doors are a strong match for the temperature swings we get in the Valley, from 100-degree North Hollywood afternoons to chilly Pasadena mornings. Craftsman offers reliable value for homeowners who want a clean look without overspending. We don't push one brand over another; we match the door to your house, your budget, and how long you plan to stay.

We recommend LiftMaster belt-drive openers for homes with living space above or next to the garage, and Chamberlain chain-drive units for detached garages where noise matters less. LiftMaster's MyQ smart features appeal to homeowners in Studio City and Burbank who want phone control. For the hills of La Crescenta-Montrose and La Cañada Flintridge, where power outages are more common, we often suggest battery-backup models. We carry replacement units on the truck and can show you operating demos before you decide.

Yes. We stock torsion and extension springs, cables, rollers, hinges, weatherstripping, sensors, and the most common opener models. The goal is to diagnose, quote, and complete the repair in one visit. Named for the spring that powers a watch, Mainspring Garage Door Co. was built on the idea that the right parts, ready to hand, are what separate a finished job from a return trip. If we need to order a specialty item, we'll tell you upfront and schedule the follow-up before we leave.

Every pro working under our name is required to hold the license and insurance California requires for garage door work. We don't send anyone to your home who isn't properly credentialed. Carl Dutton checks these requirements personally, because a company that plans to be in North Hollywood in thirty years acts like it. You can ask to see documentation at any time; we'll show it without hesitation.

Hire a specialist. Garage door springs are under extreme tension, and improper handling can cause serious injury or property damage. A general handyman may not carry the right springs, know how to calculate door weight for proper balance, or understand the safety systems that keep the door from falling. We've been called to fix handyman repairs in Tujunga and Sun Valley that made the problem worse. The part that moves everything deserves someone who works on nothing else.

Most residential garage door replacements in Los Angeles County don't require a permit if you're keeping the same size opening and not altering the structure. If you're converting to a wider door, changing the header, or doing work that affects the home's envelope, permits may be required through the City of Los Angeles or your local jurisdiction. We'll tell you during the estimate if your project needs permitting, and we can guide you through the process. We don't cut corners on code compliance.

We offer same-day service for most repair calls placed during our business hours: Monday through Friday 7:00 AM to 8:00 PM, Saturday and Sunday 7:30 AM to 8:00 PM. A broken spring or door off-track is a security and safety issue, and we prioritize those calls. We don't promise 24/7 availability, but we do answer the phone with a live coordinator who can get you on today's schedule if there's room. Call (747) 239-5578 and we'll tell you honestly what we can do.

A door that won't close and leaves your home exposed, a door that's fallen off track and could crash down, or a broken spring on a door you need to use are all emergencies. In North Hollywood, where alley access is common, an open garage can be an invitation. A door that's merely noisy or slow is important but not urgent, and we'll schedule you at the next available appointment. If you're unsure, call us and we'll help you sort it out.

First, don't try to force it down by hand, especially if a spring has broken. The door may be heavier than it looks and could slip. Disconnect the opener by pulling the red emergency release cord, then secure your home through other doors until we arrive. If the door is hanging crooked or a cable is dangling, stay clear of the area. These are high-tension components, and they can cause serious injury. Call (747) 239-5578 and we'll get a technician out as soon as our schedule allows.

We apply The Keystone Standard to every job: 90 days, in writing, no arguing. If something we fixed or installed isn't right, we come back and make it right. No paperwork battle, no pro-rating, no runaround. For new door installations, manufacturer's warranties apply to the door panel and finish, typically 10 years or more depending on the model. Our labor warranty stands independent of that. We've honored it without hesitation since 2016, because standing behind our work is one of our K.E.Y.S. values.

Our guarantee covers workmanship and parts for 90 days from the date of service. If the door doesn't operate as it should, if a part we installed fails, or if the repair simply doesn't hold up, we return and fix it at no charge. We don't hide behind fine print. The guarantee is printed on every invoice, and Carl Dutton stands behind it personally. We've found that a company willing to put its promise in writing earns the kind of trust that keeps homeowners calling back for decades.

Most manufacturer warranties on doors and openers require installation by a qualified professional to remain valid, but they don't restrict you to a single dealer for service. If you have a Raynor or Craftsman door installed by another company, we can still service it and honor the manufacturer's parts warranty where applicable. We keep records of every job we do, so if you need warranty documentation down the road, we have it. Done right means documented right, too.

Written by Carl Dutton, Owner at Mainspring Garage Door Co., serving North Hollywood since 2016.