Fast, Reliable Lock Installation & Rekey Across Hollis
Lock installation and rekeying in Hollis, NH typically runs $140-$420 depending on hardware type, with most jobs completed same-day and smart-lock retrofits on historic homes scheduled within 24-48 hours for proper measurements. We’re Strongbox Lock & Safe Co., and our Lock Installation & Rekey team has been answering calls from Hollis homeowners for over 42 years. Whether you’re updating a Federal-style farmhouse off Broad Street with a Schlage smart lock or rekeying every door after contractor work on your multi-acre property near Silver Lake, we quote a flat price before the truck rolls and back every job with our written 90-Day Done Right Promise. Call (877) 664-8139 - a live person answers, 24/7.
Why Strongbox Lock & Safe Co. Is Hollis’s Preferred Lock Installation & Rekey Company
Hollis isn’t like Nashua or Milford. The town’s deliberate rural character, its concentration of pre-1900 colonials and Federal farmhouses, and its large-lot custom estates mean lock work here demands a different skill set than standard suburban tract-home service. We’ve earned our reputation in Hollis by showing up prepared for antique mortise hardware, skeleton-key cylinders, and the precision fitting that modern smart locks require on 200-year-old doors.
Our technicians are background-checked, uniformed, and present ID at the door on every visit. We’ve served southern New Hampshire long enough that many Hollis customers are referrals from neighbors on Boston Post Road or Beaver Brook Road who had us rekey their home five or ten years back. The price we quote on the phone is the price on the invoice - no bait, no switch, no “trip charge” surprises. And because we stock parts for Schlage, Medeco, and Kwikset systems, most Hollis jobs finish in a single visit.
Response time to Hollis averages 35-50 minutes from our dispatch point, faster to in-town addresses near Monument Square and slightly longer to remote properties off Route 122. We know which Hollis driveways are gravel, which gates need codes, and which historic homes have door frames too shallow for standard smart-lock internals. That local knowledge saves you a second trip and a second day of waiting.
Our Lock Installation & Rekey Services in Hollis
Smart Lock Installation
Smart lock installation in Hollis demands more than drilling a standard hole. The town’s 18th- and 19th-century farmhouses often have original mortise pockets too narrow for modern smart-lock bodies, and the heavy oak or pine door edges on these homes may not accommodate the depth of a Wi-Fi or Z-Wave module. We measure twice - door thickness, backset, edge clearance, and strike-plate alignment - before recommending hardware. For a recent job on a multi-acre estate off Boston Post Road, we integrated a Schlage Encode on the rear mudroom door while preserving the antique mortise set on the formal front entrance. The owner gets keyless entry for her Boston commute and keeps the 1790s brass hardware intact for the home’s historic character. Smart lock installation in Hollis typically runs $280-$420 including hardware, with premium biometric or connected options at the higher end.

Keyless Entry Systems
Keyless entry in Hollis serves a specific need: homeowners who commute to Boston or Manchester and leave properties unattended for 10-plus hours want reliable access without hiding keys under flowerpots. Given Hillsborough County Sheriff response times to Hollis’s low-density, large-lot properties, physical security matters here more than in denser towns. We install keypad deadbolts, proximity-card systems, and electronic lever sets that eliminate the key entirely. For barns, equipment sheds, and guest cottages common on Hollis properties, we often recommend separate keyless systems with master-code override. Keyless entry installation ranges from $180-$340 for a single residential door, with multi-point or outbuilding systems quoted flat after a brief phone description.

Keypad Lock Installation
Keypad locks suit Hollis homeowners who want the convenience of keyless entry without smartphone dependency - a practical choice in a town where cell signal can be spotty on larger lots and older homes with thick stone foundations. We install mechanical and electronic keypad deadbolts from Kwikset and Schlage that operate on batteries and don’t require Wi-Fi. For historic Hollis homes with original rim locks or surface-mounted hardware, we can often install a keypad deadbolt on a secondary door - mudroom, side entrance, or attached garage - while leaving the antique primary lock untouched. Keypad lock installation in Hollis generally costs $160-$290.

Biometric Lock Installation
Biometric locks - fingerprint readers, in particular - are increasingly requested in Hollis’s newer custom estates and in renovated farmhouses where owners want tiered security without managing codes or keys. These systems demand precise installation: the sensor must sit flush, the bolt must align with a seasonally stable strike plate, and the electronics need protection from the moisture that seeps into Hollis’s older door frames during freeze-thaw cycles. We install fingerprint deadbolts and full biometric entry systems from premium manufacturers, and we warranty the alignment work under our 90-Day Done Right Promise. Biometric installation in Hollis starts at $340 and ranges to $520 for multi-user commercial-grade units.

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 Hollis
We stock and install Schlage, Medeco, Kwikset, and Abloy hardware - brands we’ve found hold up to Hollis’s climate and security expectations. Schlage smart locks and keypads handle the freeze-thaw moisture better than budget alternatives. Medeco high-security cylinders resist picking and bumping, which matters on remote Hollis properties where visible deterrence counts. Kwikset’s SmartKey system allows us to rekey on-site without replacing the lock, saving farmhouse owners from discarding hardware that matches their antique finish. We carry common Hollis configurations in our service vehicles, so most jobs don’t wait for parts. If you need a specific Baldwin or Yale finish for a custom Hollis estate, we order direct and schedule installation for the day after delivery.
Common Lock Installation & Rekey Problems We See in Hollis Homes
- Mortise lock retrofit failures on historic colonials. Smartphone-enabled smart locks often don’t fit the shallow door edge common on pre-1900 Hollis farmhouses. We measure edge clearance and mortise pocket depth before quoting, then source low-profile or custom-fit hardware rather than forcing a standard unit that will bind or fail.
- Frozen cylinders in barns and outbuildings. Hollis’s hard freeze winters seize deadbolt cylinders when moisture seeps past original or worn weatherstripping. We replace frozen units with weather-rated hardware and can upgrade weatherstrip as part of the service - not just treat the symptom.
- Binding after spring thaw. Seasoned oak door frames on historic Hollis homes warp as temperatures rise, misaligning strike plates and shearing smart-lock bolts. We build seasonal adjustment into our installs, using adjustable strikes and slightly oversized bolt clearances where the frame moves predictably.
- Rekeying after contractor access. Because Hollis homeowners often have extended renovation projects - barn re-siding, guest cottage builds, landscape overhauls - we rekey master sets plus outbuilding padlocks on a single visit, with all cylinders keyed alike or to a master hierarchy the owner specifies.
Pricing for Lock Installation & Rekey in Hollis, NH
We quote flat prices on the phone before any work begins. Here is what lock installation and rekeying costs in Hollis’s market:
| Service | Typical Range in Hollis |
|---|---|
| Standard rekey (per cylinder) | $45-$75 |
| Full-home rekey (4-6 doors) | $140-$260 |
| Keypad lock installation | $160-$290 |
| Keyless entry deadbolt | $180-$340 |
| Smart lock installation | $280-$420 |
| Biometric lock installation | $340-$520 |
| Mortise lock repair / retrofit | $190-$380 |
| Emergency lockout response (Hollis) | $120-$180 |
Factors that move the needle: antique or specialty hardware requiring custom fitting, additional outbuilding locks, and smart-home integration setup. Every Hollis estimate is free - call (877) 664-8139 and we’ll quote your specific job. Seniors and veterans receive a permanent 5% discount. Repairs over $250 qualify for $50 off.
We Also Serve Cities Near Hollis
Our Lock Installation & Rekey coverage extends throughout southern New Hampshire. We regularly work in Hollis and neighboring Nashua, Milford, Hudson, and Merrimack - each with its own housing stock and security needs, but all served with the same flat-price quoting and written 90-Day Done Right Promise.
Serving Hollis, NH - Our Local Coverage Area
We’re based in the Hollis 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 Hollis
Usually not on the same door, but we can preserve your historic hardware while adding smart access nearby. We typically install the smart lock on a secondary entrance - mudroom, side door, or attached garage - and leave the original mortise set intact on the formal front door. For a farmhouse off Boston Post Road, we preserved a full set of 1790s mortise locks while adding a Schlage smart lock to the rear mudroom door the owner uses daily. Call (877) 664-8139 and we’ll survey your specific door layout.
Replace the cylinder with a weather-rated unit and upgrade the door’s weatherstripping to block moisture infiltration. Hollis’s hard freeze winters and spring thaw cycles push moisture past worn seals into standard deadbolt cylinders; we see this most on barn and outbuilding doors with original or neglected weatherstrip. We install freeze-resistant hardware and can replace weatherstrip as part of the service. Call (877) 664-8139 for a free estimate - estimates are free.
No, skeleton-key bitting and modern pin-tumbler cylinders are mechanically incompatible. We can, however, install a new deadbolt keyed to match your other modern locks while preserving the antique skeleton-key lock as a functional or decorative element. Many Hollis homeowners keep the original hardware on the front door for authenticity and add a modern deadbolt above or below for security. We’ll show you both options and quote flat before starting.
No. Our flat price covers the job, not the driveway length. We’ve serviced Hollis properties with half-mile gravel drives and multiple outbuildings; the quote you get on the phone is the price on the invoice. We do ask for clear directions or gate codes so our technician arrives prepared. Call (877) 664-8139 to schedule - we’ll confirm the flat price before we head out.
Yes. Any time contractors, cleaners, or other service providers have had access to your keys, rekeying eliminates uncertainty about copies. In Hollis, where barns and outbuildings often hold equipment worth more than the average car, we recommend rekeying all exterior cylinders - house, barn, garage, and shed - to a single master key on one visit. Full-property rekeying in Hollis typically runs $180-$320 depending on cylinder count. Call (877) 664-8139 for an exact quote - estimates are free.
Written by Gil Navarro, Owner at Strongbox Lock & Safe Co., serving Hollis and southern New Hampshire since 1982.