Signal Boosters for Large Office
Stay Connected Across Every Corner
Outfit your commercial space—whether it’s an office tower, a busy campus, or a large enterprise—with high-power boosters built to handle heavy use. Enjoy uninterrupted calls and reliable mobile data that keep your teams and customers connected at all times.
Need something even bigger?
Ask us about tailored commercial installation services for complex, multi-building setups.
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COMREG Approved
Local Irish Support
2 Years Manufacturer Warranty
30 Days Money Back
Fast Free Shipping
Find Signal Booster For Large Office
Explore our full range of signal boosters and accessories built to keep you connected—whether at home, in the office, on the road, or even out at sea. Use the filters below to sort by coverage area, network type, and other options to quickly find the booster that fits your needs.
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CEL-FI GO G43 Large Home / Office Multiple Networks Signal Booster for Business
- Supports multiple Networks in Ireland
- 100 dB max signal gain covering an area 1,500 m2 per system
- Boosts 3G / 4G / 5G for voice and data simultaneously
- Can easily switch between mobile networks via the CEL-FI WAVE app
- Remote monitoring and management with the CEL-FI WAVE app
- Smart Signal Booster with IntelliBoost®…
CEL-FI GO G41 Signal Booster for Home/Office with Patchy indoor Signal
- 100 dB max signal gain covering an area 1,500 m2 per system
- Boosts 3G / 4G / 5G for voice and data simultaneously
- Can easily switch between mobile networks via the CEL-FI WAVE app
- Quick and easy setup and installation
- Remote monitoring and management with the CEL-FI WAVE app
- Smart Signal Booster with…
CEL-FI GO G41 Signal Booster for Home/Office with No Inside Signal
- 100 dB max signal gain covering an area 1,500 m2 per system
- Boosts 3G / 4G / 5G for voice and data simultaneously
- Can easily switch between mobile networks via the CEL-FI WAVE app
- Quick and easy setup and installation
- Remote monitoring and management with the CEL-FI WAVE app
- Smart Signal Booster with…
Stella Doradus Large Home/Office 4 Ports 5-Band 700 / 800 / 900 / 1800 / 2100 MHz Signal Booster
- All Irish Networks & Frequencies
- Comreg approved & EU Compliant
- Coverage Area: 4,000m²
- Boost All Voice & Data 2G 3G 4G & 5G
- Frequencies 700 / 800 / 900 / 1800 / 2100
- Boosts Multiple Bands on all mobile operators
- Manufactured in Ireland
€2,181 Ex Vat
Stella Doradus Large Home / Office Triband 800 / 900 / 1800 Mhz 4-port Mobile Signal Booster
- All Irish Networks & Frequencies
- Comreg approved & EU Compliant
- Coverage Area: 4,000m²
- Boost All Voice & Data 2G 3G 4G & 5G
- Frequencies 900 / 1800 / 2100 MHz
- 4 Ports for equal signal distribution
- Boosts Multiple Bands on all mobile operators
€1,312 Ex Vat
Stella Doradus Large Home / Office 4 Ports Dual Band 800 / 900 MHz – Voice/4G LTE Signal Booster
- All Irish Networks & Frequencies
- Dual Band Booster
- Comreg approved & EU Compliant
- Coverage Area: 4,000m²
- Boost All Voice & Data 2G 3G 4G & 5G
- Frequencies 700 / 800 /
- Boosts Multiple Bands on all mobile operators
- Manufactured in Ireland
€1,024 Ex Vat
Let's Get You Connected
We’re here to improve your mobile signal—whether at home, in the office, or on the go.
How It Works (3 Simple Steps)
- Book a Site Survey or share your floor plan
- We Analyze the data and send a proposal
- Installations Completed within days