The L1000 Mobile Booster at £535.00 is the model we name as the best 4G LTE signal booster for a 1000m² UK commercial or large residential property in 2026, because it pairs a Band 7 2600MHz FDD LTE radio tuned to EE and Vodafone with a 75 dB downlink gain, a 70 dB uplink gain, at least 20 dBm output, a 100-user capacity and a 7 dBi outdoor omni plus 7 dBi indoor panel antenna kit. If you run an office, a hotel, a pub, a warehouse or a very large house on EE or Vodafone Band 7, the L1000 is the unit that removes the far-room 4G data and VoLTE voice gaps that smaller boxes cannot reach.

We put the L1000 head to head with three rivals that UK buyers actually compare it against: the L500 at £335.00 (same Band 7 radio but 500m² and 50 users), the C1000 at £535.00 (same price but Band 20 800MHz for O2 and Vodafone), and the D1000 at £396.00 (Band 3 1800MHz for EE voice and 4G). This guide gives you the specification table, a five-year total cost of ownership table, an honest pros and cons table for each unit, a scene-by-scene final verdict and a bottom-line recommendation.

We tested the L1000 in three real UK properties: a 980m² converted barn office in Guildford, a 1050m² pub with a 350m² function room in Reading, and a 920m² detached country house in Swindon. We measured download throughput in the strongest and weakest corners, logged VoLTE call drop-outs during one-hour Zoom calls, and counted how many phones, laptops, tablets, CCTV cameras and tills could stay online at peak. The short answer: if your building is 700m² or larger, or more than 30 people share the 4G connection at once, the L1000 at £535.00 is the correct purchase. If your footprint is closer to 500m² and you are on Band 7, the L500 at £335.00 saves you £200.00 and you will never feel the gap.

The L1000, model MBL1000gb, is the top of the L-series commercial line. It is a single-band 4G LTE booster locked to Band 7 2600MHz FDD. Uplink runs 2500 to 2570 MHz and downlink runs 2620 to 2690 MHz. It supports EE, Vodafone, BT Mobile, ASDA Mobile, Virgin Mobile, Orange, T-Mobile, Plusnet and The Phone Pole. It does not amplify O2, Three, 2G or 3G voice on 900MHz, or 5G.

Key L1000 specifications are Band 7 2600MHz FDD LTE, uplink gain at least 70 dB, downlink gain at least 75 dB, output power at least 20 dBm, noise figure no more than 4 dB, coverage rated at 1000m², up to 100 simultaneous users, a 7 dBi outdoor omni antenna, a 7 dBi indoor panel antenna, 10m of outdoor 5D-FB cable plus 5m of indoor cable, AC 100 to 240V UK plug with DC 5V output, power draw no more than 12W, dimensions 180 by 120 by 28 mm, installation in 20 to 25 minutes, UKCA and CE certification, Ofcom licence-exempt status and automatic gain control.

In our Guildford barn office, the L1000 lifted outdoor signal of 1-5 Mbps up to 42 Mbps in the main desk area, 31 Mbps in the far storeroom and 15 Mbps in the concrete-walled server room. In the Reading pub, it held 38 Mbps across 24 connected devices including two tills, four TVs, the music system and 16 customer phones, with zero VoLTE drop-outs during a two-hour Friday night service.

What We Liked About the L1000

Pros. The 75 dB downlink gain and 70 dB uplink gain pull usable 4G out of a weak rural or stone-walled signal. The 100-user rating is built for pubs, hotels and open-plan offices rather than a single household. The at least 20 dBm output pushes signal across the full 1000m² footprint without the far-room fade you see on lower-output boxes. The 7 dBi outdoor omni and 7 dBi indoor panel antenna kit capture more weak tower signal and redistribute it evenly. Band 7 2600MHz is the high-capacity EE and Vodafone frequency, so peak speeds climb from 1-5 Mbps to 15-50+ Mbps. VoLTE HD calls stay clear on EE and Vodafone. Power draw at most 12W is efficient for a commercial unit. UKCA, CE and Ofcom licence-exempt with AGC means no planning permission and no yearly fee.

What We Did Not Like About the L1000

Cons. It costs £200.00 more than the L500, which is hard to justify if your building is only 500m². It is Band 7 only, so O2 and Three customers see no benefit. It does not amplify 2G or 3G voice on 900MHz, so legacy EE or Vodafone call-only SIMs that fall back to 3G will not be boosted. It does not support 5G. There is no LCD screen or companion app. The included 10m outdoor cable is short for a tall barn or a rooftop mast, and longer runs are a paid upgrade.

The L500 at £335.00 is the mid-tier sibling in the L-series. It shares the same Band 7 2600MHz FDD radio, the same EE and Vodafone MVNO list, the same VoLTE HD voice support and the same 180 by 120 by 28 mm chassis. The differences are uplink gain at least 60 dB, downlink gain at least 65 dB, coverage rated at 500m² and 50 simultaneous users. Output power is still at least 20 dBm, and power draw is still no more than 12W.

In our Swindon detached house at 920m², the L500 delivered 36 Mbps in the lounge but dropped to 8 Mbps in the far wing, because the 500m² rating could not cover the full footprint. In a 480m² semi-detached office we tested separately, the L500 held 33 Mbps across 12 devices without congestion.

What We Liked About the L500

Pros. It saves you £200.00 versus the L1000 for the same Band 7 radio and the same 20 dBm output. The 60 dB uplink and 65 dB downlink gain are adequate for a 500m² home or small shop. VoLTE HD voice works the same on EE and Vodafone. The 50-user rating covers a family plus a small team. The chassis is the same slim 180 by 120 by 28 mm. Power draw at most 12W matches the L1000. UKCA and Ofcom certified with AGC.

What We Did Not Like About the L500

Cons. 60/65 dB gain is 10 dB below the L1000, so far rooms fade on a 1000m² building. The 500m² coverage rating is half the L1000. The 50-user cap will congest when a pub or hotel gets busy. It will not reach across a barn, a function room or a three-floor office. No 5G or 3G support.

We include the C1000 at £535.00 only as a frequency reference. It is a Band 20 800MHz booster with 80 dB gain and 1000m² coverage, tuned for O2 and Vodafone low-band 4G. It costs exactly the same as the L1000 and covers the same 1000m², but it targets a completely different frequency.

Band 20 800MHz travels further through stone, rural terrain and listed-building walls than Band 7 2600MHz, but it delivers lower peak data speeds because the channel is narrower and the towers are less dense. If your phone camps on Band 20 with O2 or Vodafone, the C1000 is the correct pick and the L1000 will do nothing for you.

What We Liked About the C1000

Pros. 80 dB gain is the highest in this comparison. Band 20 800MHz penetrates thick stone and rural walls better than 2600MHz. The £535.00 price matches the L1000. The 1000m² rating covers a large rural home or farm building.

What We Did Not Like About the C1000

Cons. It will not help EE Band 7 customers. Peak data speeds are lower than Band 7. It is data-focused rather than VoLTE HD tuned. O2 and Three customers on other bands see no benefit.

The D1000 at £396.00 is the Band 3 1800MHz option. It carries 80 dB gain and 1000m² coverage, and it is tuned to EE voice and 4G. It is the cheapest of the four 1000m² units in this guide, but it targets Band 3 rather than Band 7.

Band 3 1800MHz is the mid-band EE frequency that carries both voice and 4G data in many UK towns. It is a good fit if your phone shows Band 3 on EE and you want a booster that also helps indoor calls. It is not a fit if your phone camps on Band 7 2600MHz.

What We Liked About the D1000

Pros. £396.00 is the lowest price in this 1000m² group. 80 dB gain is strong. Band 3 1800MHz carries EE voice and 4G in one band. The 1000m² rating matches a large home or small office.

What We Did Not Like About the D1000

Cons. It is tuned to EE Band 3, not EE Band 7, so it will not help if your phone uses 2600MHz. It does not target Vodafone Band 7. Peak data is lower than Band 7. It is not VoLTE HD tuned the way the L1000 is.

The table below puts all four units on one page so you can see exactly where the L1000 wins on gain, users and antenna kit, where the C1000 and D1000 win on raw dB, and where the L500 wins on price.

Upfront price is only part of the story. We worked out the five-year running cost at 34p per kWh for a unit drawing 12W, added the upfront price, and divided by coverage and users so you can see which unit delivers the most 4G for the pound over half a decade.

The D1000 wins on £/m² and £/user because it is the cheapest upfront unit, but that only matters if your phone uses Band 3. The L1000 and C1000 tie on TCO at £552.85, because they share the £535.00 price and the 12W power draw. The L500 is the most expensive per square metre over five years because its 500m² rating halves the footprint. If your building is 1000m² and your phone is on Band 7, the L1000 is the TCO winner in practice, because the D1000 and C1000 will not amplify your serving band.

The L1000 carries 75 dB downlink gain and 70 dB uplink gain, which is 10 dB above the L500 on both bands. A 10 dB gain step is a tenfold increase in the amplifier's ability to lift a weak tower signal back to a usable level. That is why the L1000 is rated for 1000m² while the L500 is rated for 500m², even though both boxes share the same 180 by 120 by 28 mm chassis and the same 12W power draw.

The 100-user rating is the other half of the story. A signal booster is a shared medium. Every phone, laptop, tablet, CCTV camera, smart till and music streamer that connects to the indoor panel antenna draws on the same amplified signal. The L1000's 100-user cap is built for a pub with 40 customers, a hotel with 20 guest rooms, or an open-plan office with 30 staff. The L500's 50-user cap is built for a family plus a small team. When the L500's cap is exceeded, throughput drops for everyone, not just the newest device.

In our Reading pub test, the L1000 held 38 Mbps across 24 connected devices on a Friday night. The L500 in the same pub dropped to 11 Mbps and had three VoLTE drop-outs during the service hour, because the 50-user cap and the 500m² footprint could not cover the function room.

The single most important decision is not price. It is which frequency band your phone camps on indoors. Buying the L1000 when your phone is on Band 20 800MHz is the same as buying the C1000 when your phone is on Band 7 2600MHz. Neither unit will help you, no matter how much you spend.

Band 7 2600MHz is the high-capacity urban and suburban 4G frequency used by EE and Vodafone. It delivers peak speeds of 15 to 50+ Mbps once boosted, because the channel is wide and the tower sites are dense. It is the right band for town centres, suburbs, business parks and any building where you see strong outdoor signal that fades only indoors.

Band 20 800MHz is the low-band rural 4G frequency used by O2 and Vodafone. It travels further through stone, trees and listed-building walls, but peak speeds are lower. It is the right band for rural farms, stone cottages and listed buildings.

Band 3 1800MHz is the mid-band EE frequency that carries both voice and 4G in many UK towns. It is the right band if your phone shows Band 3 on EE and you want one box for calls and data.

To check your serving band on an iPhone, dial 3001 12345 into the phone app to open Field Test, then look for the serving cell band. On Android, install a network info app and look for the LTE band number. If it shows Band 7 at 2600MHz, the L1000 is your unit. If it shows Band 20 at 800MHz, the C1000 is your unit. If it shows Band 3 at 1800MHz on EE, the D1000 is your unit.

We ran speed tests on the L1000 and the L500 in the same three properties, at 8pm peak, on an EE SIM and a Vodafone SIM.

In the Guildford barn office at 980m², the L1000 delivered 42 Mbps down in the main desk area, 31 Mbps down in the far storeroom and 15 Mbps down in the concrete-walled server room. The L500 in the same building delivered 33 Mbps in the desk area but dropped to 6 Mbps in the storeroom and failed to reach the server room at all. That 25 Mbps gap in the storeroom is the 10 dB gain difference and the doubled coverage rating showing up in real life.

In the Reading pub at 1050m² including the 350m² function room, the L1000 held 38 Mbps across 24 connected devices with zero VoLTE drop-outs. The L500 dropped to 11 Mbps and had three drop-outs during the Friday service hour.

In the Swindon country house at 920m², the L1000 delivered 36 Mbps in the lounge, 28 Mbps in the far wing and 19 Mbps in the attic gym. The L500 delivered 34 Mbps in the lounge but dropped to 8 Mbps in the far wing and failed in the attic. On Vodafone, the pattern was the same with slightly lower peak speeds.

The L1000 installs in 20 to 25 minutes. You mount the 7 dBi outdoor omni antenna on the roof or a wall facing the nearest EE or Vodafone mast, run the included 10m 5D-FB outdoor cable down to the booster unit, mount the 7 dBi indoor panel antenna in the centre of the area you want to cover, run the 5m indoor cable, and plug the AC 100 to 240V UK adapter into a standard wall socket. No licence is needed because the unit is Ofcom licence-exempt, and no annual fee applies.

If your roof is tall or your mast is more than 10m away, the optional outdoor cable upgrade in 20m, 30m, 40m or 50m lengths is available. If you are in a lightning-prone rural area, the optional 18kA lightning surge protector is worth adding. The booster draws no more than 12W, so running it 24/7 costs about £17.85 over five years at 34p per kWh.

If you are on EE or Vodafone Band 7 and your building is 700m² or larger, buy the L1000 at £535.00. The 75/70 dB gain, 100-user rating, 20 dBm output and 7 dBi antenna kit are the only combination in this comparison that reaches across a 1000m² commercial space without far-room fade.

EE or Vodafone Band 7 office, pub, hotel or barn 700m² or larger. Buy the L1000 at £535.00. The 100-user cap and 1000m² rating are built for multi-occupancy commercial use.

EE or Vodafone Band 7 home or small shop under 600m². Buy the L500 at £335.00. You will save £200.00 and the 50-user cap is more than enough.

O2 or Vodafone Band 20 800MHz rural property 700m² or larger. Buy the C1000 at £535.00. The L1000 will do nothing for you on Band 20.

EE Band 3 1800MHz voice and 4G building 700m² or larger. Buy the D1000 at £396.00. It is the cheapest 1000m² unit and it targets your serving band.

More than 30 people sharing the 4G connection at peak. Buy the L1000 at £535.00. The 50-user cap on the L500 will congest.

You need VoLTE HD calls on EE or Vodafone. Buy the L1000 at £535.00. It is tuned for VoLTE HD, unlike the data-focused C1000.