Cell Phone Signal Boosters for Offices up to 25,000 Sq. Ft.

A cell phone signal booster for office improves 4G, LTE, and 3G cellular signal to grant increased coverage within your place of business. Whether you have a small administrative room or a multi-floor operation, boosters provide better talk and text, faster internet, and consistent service.

Cell phone signal boosters sold by Wilson Amplifiers are FCC approved, and work across all carriers and devices. If you have weak to good signal outside your place of business but poor signal inside, a cell phone signal booster can improve your signal strength and service, making dropped calls and slow data a thing of the past.

For buildings over 25,000 sq. ft., we recommend WilsonPro commercial-grade solutions

Our Experts Recommend

BEST for office up to 5,000 sq ft
weBoost Home MultiRoom - 470144
  • Most popular office booster
  • Great performer in urban & suburbs
BEST for office up to 7,500 sq ft
weBoost Home Complete 470145
weBoost Home Complete - 470145
  • Most powerful office booster
  • Great performer in remote areas
BEST for buildings up to 25,000 sq ft
Wilson Pro 70 Plus - 463127
  • Higher capacity commercial booster
  • Great for warehouses & large offices

Get your Drivers & Fleet Connected

Never lose track of your drivers by improving their 4G connection on the road. We have a complete line of fleet boosters and offer fleet booster installation.

Browse Fleet Boosters

M2M/IoT Connectivity Solutions

Get reliable connection & data transfer in remote monitoring and real-time device-to-device communications with WilsonPro Machine-to-Machine (M2M) and Internet of Things (IoT) signal boosters.

Browse M2M/IoT Boosters

How to Choose the Best Booster For Your Office

1
Know Your Outside Signal Strength Your outside signal strength will determine the overall strength of the boosted indoor signal. Those with weak outside signal can expect less overall coverage than those with strong outside signal with the same signal booster.

Get the OpenSignal app if you have an iPhone, or the Network Cell Info Lite app for Android, and get reading your signal strength in standard dB (decibel) measurement. Use the chart below to determine an estimated coverage area for your indoor boosted signal based on your current outdoor signal:
If your current outside signal is:
You get boosted indoor signal for:
Excellent
5 bars
-40 to -60 dB
Up to 100% of the max sq. ft. per booster
Strong
4 bars
-60 to -75 dB
Up to 80% of the max sq. ft. per booster
Good
3 bars
-75 to -85 dB
Up to 60% of the max sq. ft. per booster
Fair
2 bars
-85 to -95 dB
Up to 40% of the max sq. ft. per booster
Weak
1 bars
-95 to -105 dB
Up to 20% of the max sq. ft. per booster
Dead zone
0 bars
-120 dB
Most likely no signal to boost
2
Take Your Building’s Internal Construction Into Account If you’re looking to cover an entire building, knowing what material your walls are made of is important.
See Chart Showing dB Loss for Different Building Materials
3
Estimate How Many Devices Need Better Signal Are there just a few of you in a small office, or do you run a call center? Capacity is a major consideration to make: while each booster we recommend is capable of boosting multiple devices at once, the more powerful the booster is, the more it can handle.
4
Consider Purchasing Antenna Expansion Kit If you operate your business out of a single room, you’ll probably only need one antenna. If you have a ranch style building, you’ll probably need an extra antenna. If you want to cover a multi-story building or a series of rooms, you’ll need to scale your signal booster’s power and antenna coverage to suit your needs.

If your outdoor signal is weak and/or your office layout is long and narrow, or you have an enclosed office space, you should consider using more antennas. If your outdoor signal is strong, you need to install approximately one antenna per 1,000 square feet of coverage. If your office has multiple floors, make sure each floor has its own antenna.

Examples of antenna placement:
Any more questions? Call us: 1-800-568-2723

Booster Installation Help & Resources

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Complex and Large-Scale Installations

Proper installation of commercial-grade cellular signal amplifiers requires a trained system design expert to design and lay out your plan and an installation professional to ensure you get the best coverage and comply with all local and federal regulations. A Wilson Amplifiers complete installation can extend the life and efficiency of your investment by a substantial margin. Learn More

Let's talk now:800-919-7442

100% Verified Reviews From Wilson Amplifiers' Customers

EXCELLENT
Rated 4.29 out of 5.0 based on 3000+ product reviews
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B. Colby
8/14/2019
Impressive for my ATT service in New England
Short and sweet, this is one of the best investments I have ever made considering I travel all over New England for work and NEED my phone. I pretty much never give 5 star reviews for anything but this gets it because of my coverage is so great now. Read more...
Bookie
8/10/2019
Excellent product
I live in a very rural part of Arizona, surrounded by ridges. Even in the closest town reception isn't that great. Before I installed my WeBoost I had to climb a 30' hill to get even limited sporadic reception. After installing WeBoost I get very good...Read more...
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