If you are planning a home office, a loft conversion or just better Wi-Fi upstairs, someone has probably told you to run Cat 6 through the loft. Sometimes that is exactly right, and sometimes it is money spent on cable you will never use. Here is how we help homeowners around Ilkeston and the wider Derbyshire area decide.
The loft is often the easiest route for cabling in a typical two storey house. Rather than chasing walls or lifting floorboards, an installer can drop cables down from the loft into upstairs rooms, which keeps disruption and cost down. If you want wired internet in a bedroom used as an office, a wireless access point on the landing ceiling, or CCTV cameras on the eaves, running the cable through the loft is usually the sensible path.
It also makes sense if you are converting the loft itself. Boarding, insulation and plasterboard go in once, and getting cable in afterwards is far messier and more expensive. Even if you do not need a socket up there today, putting one or two runs in during a conversion typically adds a small amount to the job compared with retrofitting later.
If your broadband is 80 Mbps or less and you mainly browse, stream on one or two devices and use Wi-Fi calling, a decent modern router or a mesh system may serve you perfectly well without any cabling. Cat 6 supports up to 10 Gbps over short runs and 1 Gbps comfortably over 90 metres, which is far beyond what many households will use in practice.
Be wary of anyone insisting every home needs a full structured cabling fit-out. A single well placed run to an access point often transforms a house for less than a whole-home installation. We would rather quote for two cables you will use than ten you will not.
For domestic runs, the honest answer is that Cat 5e still handles gigabit speeds fine, but the price gap to Cat 6 is now small enough that Cat 6 is the default we recommend. It gives you headroom for multi-gigabit broadband, which is already appearing in parts of Derbyshire on full fibre networks.
Cat 6a is worth considering if you want guaranteed 10 Gbps over longer runs or you are cabling a loft office you expect to use for decades. It is thicker and stiffer, so it is slightly harder to route neatly, and for most homes it is more than you need. Whatever the grade, insist on solid copper cable rather than cheap copper clad aluminium, which is common in bargain online reels and performs poorly, especially for PoE devices.
Lofts get hot. On a summer afternoon an uninsulated loft can exceed 40 degrees, and cable performance derates with temperature, meaning the maximum reliable run length drops. For a typical house this rarely causes real problems, but it is a reason to avoid running cable directly over hot water tanks or flues, and to use cable rated for the conditions.
Routing matters too. Cable should be clipped or laid tidily away from mains wiring where possible, kept clear of loft hatches and walkways, and never crushed under boarding or stored boxes. Drilling down through the ceiling into stud walls needs care around joists, pipes and existing electrics. A tidy installation also means every run is tested with a proper cable tester and labelled at both ends, so faults can be traced years later.
A straightforward job, such as one or two Cat 6 runs from a router downstairs, up through the loft and into an upstairs room, is usually done in half a day. Longer jobs with multiple rooms, a small network cabinet or ceiling access points can take a day or more. Cost depends on cable length, how accessible the loft is, wall construction and how many terminated sockets you want, so treat any figure as a guide rather than a promise.
As a rough range, single domestic runs often land somewhere in the low hundreds of pounds including testing and tidy finishing, while whole-home jobs scale with the number of points. If you are local to Ilkeston, Derby or Nottingham, a quick look at the property is the best way to get an accurate price, and it costs nothing to ask.
You can, and plenty of confident DIYers do, but termination and testing are where self-installs usually fall down. If a run fails, it often works at reduced speed rather than not at all, so problems can go unnoticed for months. A professional install includes proper testing so you know every run performs as it should.
Normal loft temperatures will not destroy the cable, but sustained heat reduces the maximum reliable run length and accelerates ageing of cheap sheathing. Using decent solid copper cable and routing it away from heat sources such as flues and tanks avoids any practical issue in a typical home.
For a fixed spot like a desk or TV, yes, a wired connection is faster, more stable and unaffected by neighbours' networks. Plug-in boosters share airtime with everything else and often halve throughput. A single Cat 6 run feeding a proper access point usually beats several boosters.
Tell us about your project, send any drawings or schedules, and we'll come back the same day with a clear, itemised quote.
