Non-destructive entry first, always - and we re-key Schlage, Kwikset, and Baldwin locks on the spot while you watch
You get a price before we start. It does not change when we arrive. No surprises.
Fast, Reliable Lock Installation & Rekey Across Thornton
Lock installation and rekeying in Thornton typically costs $85-$240 for a standard rekey and $120-$380 per deadbolt or handle replacement, depending on the hardware grade and cylinder type. We quote the full price on the phone before anyone is dispatched, and that’s the price on the invoice. If you just closed on a home in one of Thornton’s newer subdivisions north of 120th Ave, your builder’s key may still be opening doors it shouldn’t, and that’s a problem we fix in a single visit. Call (331) 310-8471 and you’ll speak to a live person, not a voicemail queue.
Why Novak Lock & Security Is Thornton’s Preferred Lock Installation & Rekey Company
Novak Lock & Security has been working the Front Range since 2002, and a large share of our residential work now happens in Thornton’s high-volume subdivisions. Homeowners in the Quebec Riverdale area, the neighborhoods around 104th Ave, and the newer tracts north toward 144th Ave call us for one recurring reason: their builder installed the same Grade 2 deadbolts across an entire phase, and their keys match more doors than they should. We know which builders used which hardware, which locks are worth replacing and which just need new pins, and what an honest rekey should cost in this specific market.
Daniel Novak, who runs the business, put a rule in place in 2002 that has never changed: the dispatcher quotes a firm price, and the technician is contractually prohibited from changing it at the door. That’s Haven Standard Clause 1. Every Thornton visit ends with a documented photo record left with the customer. Not because we’re asked. Because it’s the procedure.
Background-checked, uniformed technicians handle every call. We hold factory authorization for Mul-T-Lock, Abloy, Baldwin, and Schlage. And on the 60,000+ locks, keys, and systems we’ve serviced, every one started with a written price. If you’re in Thornton and you’ve been given a quote from another shop, bring it to us. We’ll review it free under our Free Second Opinion policy.
Our Lock Installation & Rekey Services in Thornton
Most Thornton calls fall into a few clear categories, and we schedule them the same way: written price first, then the work. Here’s what we handle most in this city, and what it means for your home specifically.
Smart Lock Installation
Thornton’s newest housing stock, especially the 2015-2025 tract builds north of 120th Ave, was plumbed for basic deadbolts but not for smart hardware. That means many smart lock installs in Thornton require retrofitting the strike plate or boring a slightly larger hole, not just swapping the thumb latch. We install smart locks from Schlage, Baldwin, and others, and we set them up against your existing deadbolt or as a full replacement. Before we touch the door, we check the frame alignment, because Thornton’s daily temperature swings throw deadbolts out of alignment within weeks of installation. We also confirm the lock works with your home’s Wi-Fi band and give you the manual and the app setup before we leave.
Keyless Entry
Keyless entry comes in two common forms here: a keypad deadbolt that replaces your existing lock, or a keypad lever for a side entry or garage door. In Thornton’s subdivision homes, we often install a keypad deadbolt on the front door and a keyed core on the back, so there’s still a physical backup if the keypad fails in cold weather. Keyless entry installation in Thornton runs $180-$320 on average, including the hardware and labor, quoted in writing before we start.
Keypad Lock
For Thornton families in the newer northern sections, keypad locks are the most requested upgrade after a builder-grade deadbolt. We recently rekeyed a 2021 Lennar home in the Quebec Riverdale area near 136th Ave where the owners had lived for three months before realizing their builder’s Kwikset key still opened two other doors on the block. Our tech pulled the Grade 2 deadbolts, replaced the pin and tumbler cylinders with bump-resistant Schlage B60N deadbolts, and set up a keypad entry so the kids could get in after school without keys. A keypad lock with a new Grade 1 deadbolt on a typical Thornton tract home runs $140-$290, and we’ll write the price down before any work begins.
Biometric Lock
Biometric locks in Thornton work well as secondary entry points on doors protected from direct sun, because sustained UV exposure can degrade the sensor coating faster at this elevation’s 5,350 feet. We stock fingerprint deadbolts and levers from Baldwin and Mul-T-Lock, and we’ll tell you honestly whether a biometric unit is the right call for your door or whether a keypad with a Weiser or Schlage core makes more sense for your budget. Biometric installation typically runs $220-$420 in Thornton, depending on the hardware and whether the frame needs adjustment before the bolt engages cleanly.
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.
Trusted Brands We Service in Thornton
We stock and service the full range, from entry-grade Kwikset and Schlage to high-security Mul-T-Lock, Abloy, and Baldwin. For Thornton’s older ranch homes near 84th Ave, we often match Baldwin levers to existing colonial trim. For the dense northern subdivision stock, we stock Schlage B60N deadbolts and matching keypad cores locally, so a rekey or upgrade on a Lennar or Richmond American home doesn’t wait on a parts order. Sargent cores are stocked for commercial doors in Thornton’s retail and office strips along 104th Ave and Washington St. If you have a lock brand we don’t recognize, we’ll identify it on site and quote parts before we order anything.
Common Lock Installation & Rekey Problems We See in Thornton Homes
These are the four problems we see more in Thornton than anywhere else on our Front Range service map:
- Builder’s-key handover. In many Thornton subdivisions off 120th Ave and north toward 144th Ave, one volume builder keyed an entire phase of 50-150 homes to a single construction master. Until a homeowner rekeys after closing, their builder’s key may still open neighboring doors. It’s not rare, and it’s fixable in under two hours.
- Thermal misalignment. 40-50°F daily swings at Thornton’s elevation make wood door frames swell and shrink. Deadbolts installed in summer throw out of strike-plate alignment by late fall, and the latch drags or won’t engage. We adjust or mortise the strike plate as part of the install, not as a separate callback.
- Freeze-up from dry cold. Prolonged low humidity at ~5,350 ft dries out lock lubricants faster than lower-elevation or more humid markets. Pins stiffen, cylinders jam, and keys snap off in the winter. We re-lubricate every Thornton cylinder we touch during any install or rekey.
- Aging southern-stock hardware. The 1960s-1970s ranch homes in Thornton’s southern neighborhoods near 84th Ave often carry original cylinders with worn pins. Rekeying those isn’t always worth the labor; sometimes a fresh Grade 2 deadbolt at $35-$60 installed beats trying to save a 50-year-old core.
Pricing for Lock Installation & Rekey in Thornton, CO
Here’s what a typical Thornton lock job costs, in plain numbers, as of early 2026. A standard rekey of a single cylinder runs $85-$140. Rekeying all the locks on a typical Thornton home to one key runs $180-$300, depending on the number of cylinders and whether they’re Kwikset or Schlage. A new Grade 2 deadbolt installed runs $120-$210. Grade 1 deadbolts with bump-resistant cores run $160-$320 per door. Smart lock installation ranges $180-$350 per door. Biometric or high-security Mul-T-Lock or Abloy installs start around $220 and top out around $420 with new cylinders. These are the numbers you’ll see on the written estimate. No call-out surcharge is added on arrival, and the price quoted on the phone is the price on the invoice. Call (331) 310-8471 and we’ll quote the whole job before we schedule anyone.
We Also Serve Cities Near Thornton
Our crews run Thornton daily and also cover Westminster, Commerce City, Broomfield, and Arvada. Dispatch and scheduling are coordinated from the brand’s Denver office, but the technicians serving Thornton live and work in the north metro. That’s why we can usually get to a Thornton call the same day, from the newer subdivisions near 136th Ave down to the older ranch blocks near 84th Ave. For the full picture on Thornton coverage, see Lock Installation & Rekey in Thornton.
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.
FAQs - Lock Installation & Rekey in Thornton
Because in many Thornton subdivisions, a single volume builder keyed an entire phase of 50-150 homes to one construction master key, and that key is not unique to your door. If you bought a 2018, 2020, or 2022 build in the northern tracts and haven’t rekeyed, your key likely still opens neighboring doors. We rekey those cylinders in under two hours for $180-$300, and the same visit can include a deadbolt upgrade if you want harder-to-bump hardware. Call (331) 310-8471 for a written quote before we schedule anyone.
Yes. We remove the existing Kwikset deadbolt and replace the cylinder with a Schlage B60N or Grade 1 core, keeping the same door and handle hardware. That’s one of the most common upgrades we do in Thornton, because builder-grade Kwikset deadbolts in high-volume subdivisions are bumpable with standard tools. The deadbolt upgrade with new strike plate and alignment runs $160-$320 per door, quoted in writing before we start.
Thornton’s 40-50°F daily swings make wood door frames expand and contract, and a deadbolt that fit tight in August can skip the strike plate by November. We set strike-plate clearance for the full seasonal range on every Thornton install, and we’ll return under our 365-Day Done Right Promise if the bolt misalignes within a year. That’s not a warranty on paper. It’s a callback we actually send.
Yes, as long as the cylinders are in serviceable condition. Many 1990s Thornton homes around 104th Ave and Washington St use Kwikset or Weiser hardware, and a full-home rekey to one key runs $180-$300. If the pins are worn from decades of use, we’ll tell you whether a new cylinder at $85-$140 is the better call. The price is in writing before any work begins. Call (331) 310-8471 and we’ll quote your specific hardware over the phone.
Yes, with one condition: the door frame and strike plate must be solid enough for the smart lock’s motorized bolt. Some 1970s Thornton ranch homes near 84th Ave have soft frames that need reinforcement or a replacement strike before a smart lock will engage reliably. We check that during the estimate visit and include any frame work in the written price. Smart lock installation on an older Thornton ranch runs $180-$350 including the hardware and frame adjustment.
Call Novak Lock & Security in Thornton
If you need a lock installed, a deadbolt upgraded, or builder’s keys rekeyed in Thornton, call ((331) 310-8471 now. You’ll speak to a live person who can quote the job in writing over the phone. The price on the phone is the price on the invoice. We serve all of Thornton, from the older ranch blocks near 84th Ave to the new Lennar and Richmond American subdivisions north of 144th Ave. Estimates are free, and the visit ends with a photo record of the work.
Written by Daniel Novak, Owner at Novak Lock & Security, serving Thornton since 2002.
Lock Installation & Rekey in Nearby Areas