Call Us: +254 790303030 Email: garissawater@yahoo.com info@gawasco.org
We Are Here to Help

Customer Service

Your one-stop hub for account opening, payments, self-service, complaints, FAQs, and tariff estimates.

02

Customer Care

Reach GAWASCO for billing support, connections, water quality concerns, and general enquiries across Garissa County.

  • Call customer service on +254 790303030 during office hours.
  • Visit us at Along Lamu Road, Opposite Law Courts.
  • Review our Customer Service Charter for response timelines and service standards.
Contact GAWASCO Customer Service Charter
03

Self-Service Portal

Check balances, query bills, and manage your account using GAWASCO self-service channels without visiting the office.

  • Query your bill anytime using USSD code *873*067#.
  • Use M-Pesa paybill and other authorized payment agents with your account number.
  • Submit billing enquiries online and receive a response within one business day.
Pay Your Bill Contact Customer Service

Bill enquiry USSD

*873*067#

Dial from any mobile network to query your GAWASCO account balance and bill details.

04

Payments

Pay your GAWASCO water and sewer bill through M-Pesa, banks, agents, and other approved channels. Use your account number for every payment.

  • All customers should pay bills by the 10th day of each month.
  • Keep your payment receipt or M-Pesa confirmation message for reference.
  • Contact customer service if your payment is not reflected on your account.

Modes of Payment

All customers should pay bills by the 10th day of each month. Use your account number when paying.

M-Pesa

Pay your water bill anytime using M-Pesa Pay Bill.

Pay Bill Number: 880600

Post Office Bank

Pay through Post Office Bank at any branch countrywide.

Account: any branch countrywide

Cheques

Cheque payments are accepted at GAWASCO offices.

Include your account number on the cheque.

You can also query your bill using USSD code *873*067#.

05

Report a Complaint

Report billing disputes, service concerns, or account issues using USSD or by sending us a message. GAWASCO will acknowledge your complaint and respond according to the Customer Service Charter.

  • Dial *873*067# and select the report complaint option from any mobile network.
  • Or send us a message below — include your account number, service address, and a clear description of the issue.
  • For urgent service interruptions, also call the customer service hotline.

Report complaint USSD

*873*067#

Dial from any mobile network and select the report complaint option to lodge your complaint.

Send Us a message

Prefer to write to us? Submit your complaint online and our team will respond according to the Customer Service Charter.






    06

    Frequently Asked Questions

    Quick answers to common questions about GAWASCO water and sewerage services, billing, and customer support.

    Visit GAWASCO offices at Along Lamu Road, Opposite Law Courts, pay via M-Pesa paybill, or use authorized payment agents. Contact customer service on +254 90303030 for your account number and payment options.

    07

    Tariff Calculator

    Estimate your monthly water charge using the WASREB-approved GAWASCO tariff (Gazette Notice No. 4163).

    • Choose your customer category and enter monthly consumption in cubic metres (m³).
    • Charges are calculated with incremental consumption blocks from the gazetted schedule.
    • Download the Kenya Gazette PDF for the full approved tariff structure, including sewerage.
    Download gazetted tariff (PDF)
    Approved by WASREB

    Water Tariffs & Charges

    Rates for the period 2025/2026 to 2028/2029. All amounts in Kenyan Shillings (KES) per cubic metre.

    Download gazetted tariff (PDF)

    Domestic · 1st block

    80

    KES/m³ (1–6 m³)

    Commercial · 1st block

    135

    KES/m³ (1–50 m³)

    Government · 1st block

    135

    KES/m³ (1–50 m³)

    Schools & colleges · 1st block

    110

    KES/m³ (1–600 m³)

    Customer category Consumption block (m³) Rate (KES/m³)
    Domestic 1 – 6 80
    Domestic 7 – 20 120
    Domestic 21 – 50 135
    Domestic 51 – 100 160
    Domestic 101 – 300 180
    Domestic 301+ 220
    Multi-Dwelling Units 1+ 120
    Commercial 1 – 50 135
    Commercial 51 – 100 160
    Commercial 101 – 300 180
    Commercial 301+ 220
    Government 1 – 50 135
    Government 51 – 100 160
    Government 101 – 300 180
    Government 301+ 220
    Schools & colleges 1 – 600 110
    Schools & colleges 601 – 1200 120
    Schools & colleges 1201+ 130
    Unique consumers 1+ 50

    Customers with non-functional meters are billed based on the average of the last three months’ bills. Sewerage is charged at 75% of billed water volumes at the water tariff above. Estimates include a KES 50 meter rent standing charge.

    Water bill calculator

    Estimated consumption charge by category (incremental blocks), plus meter rent.

    Water consumption subtotal KES 0
    Meter rent (standing charge) KES 50
    Estimated total KES 0

    Still need help?

    Call customer service or visit our office for account support, new connections, and billing assistance.

    Contact GAWASCO

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