Residential locksmith
Domestic and Residential Locksmith in Boston
Call with your postcode for a current arrival estimate.
- 24-hour emergency cover
- No call-out charge
- Price agreed before work starts
A Locksmith for Your Home
Big Locksmiths Boston works on homes across Boston, from a lockout in the middle of the night to a booked lock change or security upgrade. Whatever has happened, the first question is which of those it is, and this page points you to the right answer quickly.
Emergencies are taken 24 hours a day, and there is no call-out charge.
The Things Homeowners Actually Call Us About
Domestic locksmith calls tend to fall into urgent access problems, faulty locks or planned security work, but it is easier to start from what you are dealing with right now. Choose the situation that sounds most like yours.
You have moved in just now
Previous occupants, builders and relatives may all have had keys cut, and it can be difficult to trace how many exist or who has them. Replacing the locks on the outside doors gives you control over access.
You have lost your keys
A lost set may still open your property, which turns a nuisance into a security concern. Replacing the lock or cylinder in question means the missing keys stop working.
You find yourself locked out
You might have left the keys inside, let the door click shut or found the lock jammed, and now you cannot get into your house or flat. Before attempting an appropriate non-destructive way in, we examine the lock to establish whether its type and condition permit that approach.
Someone has broken in
Stay outside and call 999 if there is immediate danger. Assessment and securing of damaged locks, doors and other entry points can take place after the police give their approval for repairs to begin. Request burglary repairs → ·.
Something stopped working
If the key is stiff, the handle loose, the door misaligned or the lock no longer operates correctly, have it inspected before the problem grows, and do not force it. Lock repair → ·.
You want the place made more secure
A residential locksmith can assess doors or windows with old, unsuitable or awkward locks and explain the available repair, replacement or installation options. Lock installation → ·.
A Door-by-Door Look at Your Home
A house is only as secure as its weakest way in, and that is rarely the front door. Walk round your home with us, one opening at a time.
Your front door
This is the door everyone thinks about, so it is usually the best protected. Check that it closes cleanly and that the key turns without effort, then look for a British Standard marking on a timber door's lock or a rating on the face of a uPVC cylinder. BS 3621 explained →
The back doors and the patio doors
These sit out of sight of the street, which is exactly why they get tried. They can use cylinders, multipoint mechanisms or other locking hardware, and a handle that resists lifting, locking points that will not engage or a key that fights you may mean the door or mechanism needs attention. Lock repair → ·.
The windows
Check that ground-floor and other reachable windows shut properly, and that their locks are present and the keys can be found. Check the fittings on accessible windows against your policy wording, as some insurance policies include security requirements for them.
The garage, the shed and the side gate
The forgotten openings. A gate that opens lets someone reach the back of the house unseen, and outbuildings often hold valuables as well as tools.
Renting or Letting Out a Property?
This page is written for people who live in their homes, whether they own or rent, so here is how things differ if you are a tenant or a landlord.
As a tenant, try other doors or windows you can reach safely, then your landlord, agent or someone holding a spare key. Your landlord or agent may need to approve planned lock work. If you cannot get hold of them and still need a locksmith, we can help, and we will normally ask you to confirm that you live at the address before starting. Get help when locked out →
As a landlord or letting agent, you will find tenancy changeovers are the usual time for a lock change, and the work can be scheduled around that date, tenants and contractors. Keyed-alike cylinders mean one key holder can access several properties. Managed residential lets go through our landlord and HMO service; commercial premises go through our commercial locksmith service.
Domestic Locksmith Services Across Boston
We work on homes across Boston, from flats to detached houses, and the locks on them differ with the age of the home.
Housing here splits into 34.1% detached, 33.1% semi-detached, 17.2% terraced and 15.3% flats (Census 2021, ONS). About 30% of homes date from before 1940 (15.8% before 1900, 14.6% from 1900 to 1939), while 19.9% were built from 1983 to 2008 and 13.6% from 2009 (VOA council tax property stock, 31 March 2026). Older timber doors tend to have mortice locks and newer ones multipoint mechanisms, which the technician confirms on the door. Calls come from Skirbeck, Wyberton, Haven Village, Staniland, Trinity and Bargate, from every postcode in PE21 and from the parts of PE20 around Boston.
See all areas we cover.
The Things Homeowners Most Often Get Wrong
Homeowners are often reassured by a lock that looks tough, but appearance says little about wear, suitability or whether the lock suits the door. Consider these five common misunderstandings when assessing whether further checks, repairs or replacement may be needed.
Keys lost, not locked in.
Regaining entry may be enough to resolve the problem when keys are locked inside. Replacing the affected lock or cylinder is the only way to stop lost, unaccounted-for keys from continuing to open the property. Arrange a lock replacement → ·.
A uPVC door that will not lock.
Difficulty lifting the handle or locking it may come down to alignment, the cylinder or the multipoint mechanism, so the fault needs diagnosing before repair or replacement is chosen.
A safe chosen on looks.
Certification, the manufacturer's instructions and the installation may affect a safe's security performance or whether it meets an insurer's conditions; confirm those before picking the safe or its position.
Five levers taken as proof.
Lever count alone proves little, since a five-lever lock is not automatically a BS 3621 lock. Check for the British Standard number and certification marking, and then compare the lock with the security requirements in your insurance policy. BS 3621 explained →
Stiffness ignored.
A stiff key, a difficult handle or a door that needs force to lock may be a sign of misalignment, wear or a developing fault, and forcing it may cause further damage or leave the door unable to secure.
Locksmith pricing
How Much Does a Home Locksmith Cost?
Every home job is priced on the call from your description, before anyone travels, and you are never charged for a technician turning up. The figure varies with the service you need, the lock, the work required and the time of the visit. Lockouts are the only job with a published starting point: from £70.80 including VAT for a standard lockout between 7am and 6pm, Monday to Friday. Repairs, new locks and other residential work are priced separately. You pay for the work carried out, any parts needed, and VAT. Rates outside Monday to Friday, 7am to 6pm, are higher, but the call-out itself is never charged.
Should the locksmith find more than you described, you hear about the revised work and price first and choose whether to proceed. It also helps to mention whether you own the home, rent it or manage it for someone else. See the full Boston locksmith price guide →
What affects the cost?
Service required, time of attendance, lock and door type, labour and parts.
Emergency and planned locksmith services
Call Big Locksmiths Boston
Ring at any hour for anything urgent, or book a weekday visit for anything that can wait. There is no call-out charge and the price is agreed before work starts.
- Phone: 01205 601044
01205 601044
Frequently Asked Questions
What is the difference between a domestic and a commercial locksmith?
Domestic means work at residential properties, while commercial means work at business premises. Houses and flats can need help with access or with locks on windows and doors. A shop or office may have different door fittings, locking hardware and ways of managing who can enter.
Do I need to change the locks when I move house?
It is worth doing. There is no way to know how many keys exist for the property or who still has them, including previous owners, tradespeople, letting agents and former tenants. Replacing the external cylinders retires every old key at once. It is planned work, booked for a weekday, with no call-out charge and the price agreed before it starts.
Can you come out at night for a house lockout?
Yes, an overnight house lockout is covered by our round-the-clock emergency service throughout the year. A price is given on the call before the job begins. Many lockouts allow entry without lock damage, keeping the existing lock and keys in use. You pay for the work carried out, any parts needed, and VAT. Rates outside Monday to Friday, 7am to 6pm, are higher, but the call-out itself is never charged.
Which part of my house is most likely to be the weak point?
Usually somewhere round the back. Patio and back doors, along with ground-floor windows, tend to have the oldest locks in the home and sit out of view of the road. The front door, by contrast, is normally the best protected. Do not forget the side gate either, because a gate that gives way lets someone reach the rear unseen.
I rent. Should I call you or my landlord?
Start with any other door or window you can reach safely, then your landlord, letting agent or anyone holding a spare key, who may be able to let you in at no cost. If none of them can, call us and we can open the door. About 46% of Boston households rent (Census 2021, ONS), so this is a common call; we may ask for confirmation that you live there.
How can I tell if my locks meet my insurance policy?
Check the markings, then the policy. On a timber door, look at the faceplate on the edge of the door for a British Standard kitemark and number. On a uPVC or composite door, look at the face of the euro cylinder for a star rating or Diamond mark. No marking usually means the lock does not meet the standard, however solid it feels. Then compare what you find with your policy wording.
Do you fit burglar alarms or CCTV?
No. We are locksmiths, so our work covers locks, doors, windows, safes and the hardware that secures them. Burglar alarms and CCTV are a separate trade, and we would rather say so than take on work outside what we do. If your worry is the physical security of the openings in your home, that is exactly what we handle.
Can you look at the whole house rather than just one door?
Yes, please ask. Locks and handles of a similar age usually fail around the same time, so the lock that has just let you down may not be the last. Assessing all the openings at once means one appointment instead of several, with a clear split between work that is needed now and work that can wait.
Still have a question or need urgent assistance? Call 01205 601044, tell us what has happened and receive a current arrival estimate.