Raised-panel steel
Carriage house
Modern flush
Full-view glass
LiftMaster openers
Chamberlain openersFull 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.
Get your free estimateThe Brock Garage Doors Hempstead Guarantee
When we fix a garage door in Hempstead, we put the promise in writing before the first tool comes off the truck. You get a written price before any work starts, and your repair is covered in writing for 365 days. If it fails in that window, we return at no charge. No phone tag. No fine print. No “well, actually.” We’re an independently owned and operated shop working to The Garrison Standard, which is a discipline we chose, not a franchise script we inherited. Wade Mercer runs this location. When something goes wrong on his watch, he’s the one who hears about it. That’s the point.
What’s Covered
Every repair job from Brock Garage Doors Hempstead includes these commitments, spelled out before we begin:
- Workmanship for a full year. If a covered repair fails within 365 days of the service date, we send a technician back and correct it at no additional charge. That’s written on your invoice, not promised in a handshake.
- Parts we install. If a component we supplied fails during the guarantee period, we replace it. We service LiftMaster, Chamberlain, Genie, Clopay, Amarr, Wayne Dalton, Craftsman, and Raynor equipment, so the part matches your system rather than getting adapted to fit.
- Written pricing before work begins. The number you approve is the number on the final invoice. No surprises after the door is back on its tracks.
- Clean job site. We don’t leave old springs, cable fragments, or grease smudges on your garage floor. The space looks like we were never there, except the door works again.
- On-time arrival with a real person. Every technician is background-checked and uniformed before they step onto your driveway. You know who’s coming, and you know they’re accountable.
- The 365-Day Done Right Promise. If the repair fails within a full year, we come back and make it right at no charge. Confirmed in writing on every job.
Styles & brands we work with






Our Satisfaction Promise
Here’s the straight answer on what happens if you’re not satisfied. Call us. A live person answers, day or night, weekends and holidays included. Tell them what’s wrong. If the repair failed within the 365-day window, we schedule a return visit and fix it without charging you a second time. If the issue is something we missed, we own it. If we can’t make it right, we’ll tell you that plainly and work out what’s fair. The Garrison Code, which every Brock tech works under, requires arrival windows we honor, pricing handed over before work starts, a clean site when we leave, and the one-year guarantee on every repair. This is not a customer service script. It’s the operating standard for every job, and Wade Mercer enforces it because his name is on the side of the van.
Licensed & Insured Backing
Paper promises only matter if there’s substance behind them. We’re a licensed and insured garage door repair company serving Hempstead and the surrounding Nassau County area. That means when you hire Brock Garage Doors Hempstead, a real business entity stands behind the work. Insurance protects your property if something unexpected happens during a repair. Licensing means we answer to state and local requirements. As a Garrison Partners network location operating since 2001, there’s a larger accountability structure behind every job. But at ground level, the guarantee is simpler: a trained technician who passed a background check, a written price in your hand, and a written promise that covers every repair for a full year.
What the guarantee doesn’t cover
We’re upfront about limits. The 365-day guarantee covers the specific repair we performed and the parts we installed. It doesn’t cover unrelated components that later fail on their own, damage from misuse or accidents, or normal wear on parts we never touched. If your door gets hit by a car a month after we replace a spring, that’s a different conversation. If the spring we replaced snaps within the year, that’s on us. We’d rather explain this now than have you find out during an emergency at 7 a.m. on a Tuesday.
Why we do it this way in Hempstead
Long Island garage doors take a beating. Salt air from the South Shore works its way inland, humidity rusts torsion springs, and winter cold makes cables brittle. We see doors in Hempstead that were installed a decade ago and never touched since, and the wear patterns tell a story. That’s exactly why a one-year written guarantee matters more here than in a dry climate. It’s also why we carry parts for all eight major brands on our trucks: the right spring or cable for a Genie system isn’t the same as what a Chamberlain door needs, and guessing is how doors fail again in three months.
Written by Wade Mercer, Owner at Brock Garage Doors Hempstead, serving Hempstead and Nassau County since 2001.
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