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 Haverhill
Lock installation and rekey in Haverhill runs $25-$45 per cylinder for a standard rekey and $85-$150 for most new deadbolt installations, quoted in writing before we touch the door. If you’ve just closed on a triple-decker off Washington Street or a renovated mill loft downtown, you’re dealing with hardware most big-box installers never see: original mortise locks, non-standard steel-door bores, and freeze-damaged cylinders from the Merrimack Valley’s hard winters. That’s the work we do every day. Call (331) 310-8471 and a live person answers, 24/7, with a firm price on the phone, per Haven Standard Clause 1.
We’re Novak Lock & Security, locally operated under The Haven Standard, and our Lock Installation & Rekey team works the dense, century-old housing stock of Haverhill on a daily basis. Dispatch and scheduling are coordinated from our Boston office; crews serve Haverhill locally, with no call-out surcharge added on arrival. The price you’re quoted is the price on the invoice. That rule has been in place since 2002 and it is the entire reason the company exists.
Why Novak Lock & Security Is Haverhill’s Preferred Lock Installation & Rekey Company
Haverhill isn’t a generic suburb. It’s a city where the dominant housing stock was built between roughly 1880 and 1920, during the shoe-manufacturing boom, and that shapes every lock job we do. We know that a triple-decker on Lafayette Square likely has an original mortise lock body that hasn’t been serviced in decades. We know that a Victorian single-family over in the Highlands has soft door jambs that have been shimmed and repaired multiple times, so the strike plate no longer lines up with the bolt. We know that the converted shoe-factory lofts near downtown come with oversized industrial mortise locks and steel doors with proprietary bore patterns that off-the-shelf cylinders simply won’t fit. That’s not general locksmith knowledge. That’s Haverhill-specific knowledge, built from thousands of calls between the river, the railroad, and the hills.
Every technician who arrives at your door is background-checked, uniformed, and works to a documented quality framework. Before any work starts, you receive a written scope and a written price. When the job is done, you receive a documented photo record showing the condition of the hardware we found and the work we performed. That’s not a promise we make when it’s convenient. It’s a procedure, on every visit, for every customer.
Since 2002, we’ve installed or serviced 60,000+ locks, keys, and systems, every one with a written price before we started and a documented record when we left. And every job is backed by the 365-Day Done Right Promise: if it’s not done right, we make it right.
Our Lock Installation & Rekey Services in Haverhill

The service catalog matters less than how we apply it to Haverhill’s buildings. Here’s what we do most often in this city, and why the local context changes the job.
Smart Lock Installation
A smart lock on a triple-decker’s original door needs to work with a mortise lock body that was installed before electricity was common in Haverhill rental housing. We stock retrofit kits and adapters for old mortise preps, and we’ll tell you plainly if your door geometry makes a smart lock a poor fit before we install anything. On the union side, smart locks on condo doors in the Bradford section require compliance with building rules we know how to navigate. We install Yale, Schlage Encode, and Kwikset Halo units regularly, with the full written price quoted before dispatch.

Keyless Entry
Keyless entry on a Haverhill multi-family building is a different job than on a detached single-family in Methuen. You need a system that manages multiple codes, resets when a tenant moves out, and survives an uninsulated entryway that freezes in January. We install keypad deadbolts and commercial-grade keyless systems on triple-deckers throughout the Acre, Mount Washington, and Riverside neighborhoods, with restricted keyways where the landlord wants copy control. Pricing for keyless deadbolt installation in Haverhill runs $150-$280 per door, depending on the lock grade and door prep.

Keypad Lock
Keypad locks on Haverhill’s older doors often need strike plate reinforcement because the original jamb wood is soft from 100 years of seasonal expansion and contraction. We install the lock, correct the strike alignment, and document the condition of the jamb in your photo record. For mill-conversion units with steel doors and non-standard bores, we carry extended deadbolt latches and custom strike options that generic installers don’t keep on the truck. Standard keypad lock installation runs $130-$240 per door in Haverhill, including the hardware we recommend and the written quote before we start.

Biometric Lock
Fingerprint locks on a Haverhill property need to function through the same freeze-thaw cycles that ice over conventional cylinders every winter. We recommend biometric models with a mechanical key override for exactly that reason, and we install them with the same documentation standard: written price, written scope, photo record when we leave. Biometric lock installation runs $200-$350 per door, depending on the model and the existing prep. If the door is a converted mill unit with a steel frame, we’ll tell you on the phone what to expect before we dispatch.
We also handle key duplication daily, including restricted and high-security keyways that chain hardware stores cannot duplicate. If your Haverhill landlord has a restricted system from Mul-T-Lock or Medeco, bring us the key and the authorization, and we’ll cut it while you wait with a firm price quoted before we cut the first blank.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
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 Haverhill
We’re factory-authorized on premium lock brands including Medeco, Mul-T-Lock, Abloy, Baldwin, and Schlage. That matters in Haverhill specifically because so many multi-family owners choose restricted keyways from Baldwin or Mul-T-Lock to stop unauthorized key copying, and restricted systems can only be serviced by authorized dealers with the right key blanks and cutting equipment. We stock Baldwin mortise cylinders, Mul-T-Lock restricted blanks, and Schlage deadbolts for same-day Haverhill jobs, and we also service Sargent commercial hardware that shows up in converted mill buildings and older institutional properties. If you have a brand-specific question, call us and a live person will tell you whether we service it and what it will cost.
Common Lock Installation & Rekey Problems We See in Haverhill Homes

- Frozen lock cylinders in uninsulated entryways. Haverhill’s Merrimack River valley location channels cold air, and sharp freeze-thaw cycles from December through March ice over lock cylinders and seize deadbolt mechanisms. The classic call is a triple-decker’s second-floor entry with no insulation and a Schlage deadbolt that won’t turn. We use non-destructive entry when possible and re-lubricate the cylinder with a cold-rated product so it holds through the next cycle.
- Strike plates that no longer align with the bolt. In pre-1920 housing stock, the door jamb wood has been shimmed, repaired, and re-shimmed over a century of use. When a new deadbolt binds or fails to latch, the cause is usually the strike, not the lock. We correct the alignment, reinforce the jamb if needed, and document it in the photo record.
- Original mortise lock bodies that generic rekey jobs can’t handle. Many Haverhill rental units still carry their original mortise locks from the 1880s-1920s. Rekeying them means removing the lock body, disassembling it, and repining the cylinder inside, not just swapping a knob. We do this work routinely. Off-the-shelf cylinders won’t fit the original bore, and forcing one in damages the door a tenant doesn’t own.
- Converted mill loft doors with non-standard hardware. The shoe-factory buildings converted to apartments and commercial suites near downtown often have steel doors with oversized mortise locks, proprietary master-key systems installed by long-gone building managers, and bore patterns that don’t match any modern lock. This work almost never appears in newer suburban markets. We carry extended latches, custom strikes, and the patience to retrofit correctly.
On a January call to a triple-decker on Washington Street, our tech found a frozen Schlage deadbolt on the second-floor unit’s uninsulated entryway. We used non-destructive entry to save the landlord’s original door, then rekeyed all three apartments to a restricted keyway so one copied key couldn’t compromise the whole building. The landlord received a written scope, a written price, and a photo record before we left. That’s the standard, not the exception.
Pricing for Lock Installation & Rekey in Haverhill, MA
Here’s what lock work actually costs in Haverhill, in writing, before anyone is dispatched:
- Standard lock rekey: $25-$45 per cylinder, including new keys
- New deadbolt installation: $85-$150 per door, hardware included
- Smart lock installation: $150-$300 per door, depending on model and prep
- Keyless entry or keypad lock installation: $130-$280 per door
- Biometric lock installation: $200-$350 per door
- Mortise lock rekey (original hardware): $35-$60 per lock body
- Restricted key duplication: $8-$25 per key, depending on keyway
These are honest ranges for the Haverhill market, not teaser numbers. What affects the final figure is the condition of your existing hardware and the type of door prep you have, and we’ll tell you the exact price on the phone before you commit to anything. There is no call-out surcharge added on arrival, and the price we quote is the price on the invoice. That’s Haven Standard Clause 1, and it has been in place since 2002. We also offer a free second opinion on any written estimate from another company. Bring it to us, and we’ll review it at no charge.
We Also Serve Cities Near Haverhill

Novak Lock & Security provides the same Lock Installation & Rekey services in Methuen, Lawrence, Lowell, and Peabody. Each city has its own housing stock and its own failure modes, and we treat them accordingly. If you own property across the Merrimack Valley, one call covers all of it. Call (331) 310-8471 with the address, and we’ll give you a written price for the specific job.
Serving Haverhill, MA - Our Local Coverage Area
We’re based in the Haverhill 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 Haverhill

Yes, in most cases we can rekey the original mortise lock body in place without replacing it. The process involves removing the lock body from the door edge, disassembling it, repining the cylinder to a new key, and reassembling it with fresh lubrication. We do this work routinely on Haverhill’s 1880s-1920s housing stock, and it typically runs $35-$60 per lock body. If the lock body is too worn to hold a pin reliably, we’ll tell you and give you a written price for a replacement mortise cassette before doing anything. Call (331) 310-8471 and describe your lock, and we’ll give you an exact quote.
Yes, you need the landlord’s permission to rekey an apartment you rent. The landlord retains the right to access the unit for emergency maintenance and safety, and rekeying without their knowledge can violate your lease. We’re happy to work with both parties: if the landlord authorizes it, we’ll rekey the unit, provide the landlord with a copy of the new key, and document the work in writing. This is a common request in Haverhill’s triple-decker rental market, where tenant turnover is constant and landlords typically want the rekey done correctly rather than patched by a DIY job. Call us and we’ll walk you through the authorization process.
It depends on the mortise prep and the door’s condition, but in many Haverhill Victorians the answer is yes with a retrofit kit or adapter plate. The original mortise cassette is often too large for a standard cylindrical smart lock, so we use retrofit kits that mount the smart lock over the existing mortise body, preserving the door. If the door is too thin or the mortise pocket is too deteriorated, we’ll tell you before anyone is dispatched, because we do not want to install a lock that will fail in a year. The written quote you get on the phone will reflect any adapter work needed.
Install a restricted keyway, which is a lock system that uses a patented key blank only your locksmith can duplicate. When a tenant moves out, you don’t rekey the lock; you simply remove their key from the access list and issue the next tenant a new one. We install restricted systems from Mul-T-Lock and Medeco on Haverhill multi-family properties regularly, and it’s the standard solution for landlords managing triple-deckers with constant tenant turnover. The system is priced per lock and per key, quoted in writing before we start.
Yes, we can install a keypad lock on most mill-conversion steel doors, but it usually requires an extended deadbolt latch and possibly a custom strike plate because the bore pattern on those doors doesn’t match a standard residential lock. We stock the extended hardware on our trucks because we see this regularly in Haverhill’s converted shoe-factory buildings. The installed price for a keypad lock on a non-standard steel door runs $180-$320, including the hardware and the modification. Call (331) 310-8471 with the door’s details and we’ll give you a firm quote on the phone.
Haverhill-Specific Lock Guidance You Won’t Find Anywhere Else
Here’s the thing about lock work in this city that a generic page never covers: Haverhill’s 19th-century shoe-manufacturing boom left it with one of the densest concentrations of triple-deckers and mill-era worker housing in the Merrimack Valley. Most were built between the 1880s and 1920s, and they carry original mortise locks, soft-wood jambs that have been shimmed repeatedly, and entryways that freeze hard every winter. Locksmiths here encounter original mortise hardware on a near-daily basis, a skill set that is increasingly rare elsewhere but non-negotiable in a city where much of the rental stock predates the modern cylinder lock era and landlords are cycling tenants through aging multi-family buildings constantly. If you live in the Highlands, work in a converted mill building near the Bradford commuter rail stop, or manage a two-family on the Acre, this is your reality. It’s the reason we stock Baldwin mortise cylinders and Mul-T-Lock restricted blanks on the truck when we roll into Haverhill.
Contact Novak Lock & Security for Lock Installation & Rekey in Haverhill

If you need a lock installed, a cylinder rekeyed, or a restricted keyway set up on a Haverhill property, call (331) 310-8471 now. A live person answers around the clock, the price is quoted in writing before anyone is dispatched, and the figure on the invoice matches the figure on the phone. We’ll tell you exactly what the job will cost, what we’ll do, and what you’ll receive when we leave: a written scope, a photo record, and the work done right. That’s how we’ve handled 60,000+ locks since 2002, and it’s how we’ll handle yours.
Written by Daniel Novak, Owner at Novak Lock & Security, providing lock installation and rekey services in Haverhill under The Haven Standard.






