Nobody browses for CCTV. People buy it the week something happens: a forced back door, a shed cleared out, a car gone off the drive. The trouble is that the week after a break-in is the worst possible week to make a considered purchase, and every salesman in the security trade knows it.

You are anxious, you want something visible on the wall by Friday, and you will say yes to things you would have questioned a month earlier. That is how people end up with eight cameras where three would do, or a monitoring contract they never wanted, signed at the kitchen table two days after the burglary.

What needs doing this week

Separate the urgent from the permanent. The urgent part is physical: repair the point of entry, upgrade the lock that failed, and if the burglar came through darkness, get a light on that side of the house. A battery camera from a high street shop, stuck up temporarily, covers the gap while you think. None of that commits you to anything.

The permanent system can then be chosen like any other trade job, with a survey and a written quote. A proper installer will walk the outside of the house with you, point out the approaches a burglar would use, and tell you where cameras earn their keep and where they are decoration. If the first company you call wants to quote over the phone without seeing the property, that tells you how much thought will go into the design.

The questions that slow a pushy seller down

Three questions do most of the work. What resolution and night performance do the cameras have, and can you see sample footage from an installed job rather than a brochure? Where will the recorder live and how many days of footage will it hold? And is anything in the price a subscription rather than a purchase? A quote that leans on a monthly fee should say plainly what stops working when you cancel.

Certification is worth a look too. NSI and SSAIB are the recognised inspection bodies for security firms in the UK, and an installer approved by either has had its work and its paperwork checked by someone whose job is to be unimpressed. Approval does not guarantee a good design for your house, but it filters out the van-and-a-ladder operations that appear in an area after a spate of burglaries.

Moving fast without deciding fast

The practical rhythm looks like this. Days one and two: repairs, locks, light, temporary camera. Days three to seven: two or three surveys from installers who visit in person. Week two: compare written quotes and book the one who explained their thinking rather than their discount.

Tell your insurer what you are fitting as well. Some policies note security measures, and it is better to have the conversation before renewal than after the next claim.

There are 335 CCTV system installers listed on this site, and the listings show who covers your area and whether they lean domestic or commercial. Start with installers near you, or describe the property and let firms come to you with a proper survey. Book the surveys this week; sign nothing at the kitchen table.