📍 Serving Nairobi, Kiambu, Machakos & Greater Kenya

✦ Certified Plumbers in Nairobi & Kenya

Reliable Plumbing Services in Nairobi & Kenya

At Cossy Plumbing Services, we are Nairobi's most comprehensive plumbing solution provider. Our team of certified plumbers brings years of experience, technical expertise, and an unwavering commitment to customer satisfaction — setting us apart in the competitive plumbing industry.

979+
Customers Served
280+
Businesses Supported
24/7
Emergency Response
250+
Swimming Pools
What We Do

Comprehensive Plumbing Services

Whether you're dealing with an emergency pipe burst, planning a bathroom renovation, or need routine commercial maintenance — Cossy Plumbing Services has the skills, equipment, and dedication to handle every plumbing challenge.

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Emergency Plumbing

  • 24/7 emergency response
  • Burst pipe repair & replacement
  • Emergency leak detection & repair
  • Sewer line backups & blockages
  • Water heater failures
  • Gas leak detection & repair
  • Emergency shut-off valve installation
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Drain Cleaning & Unblocking

  • Kitchen sink unblocking
  • Bathroom drain clearing
  • Toilet unblocking & repair
  • Main sewer line cleaning
  • Hydro-jetting services
  • Root intrusion removal
  • Grease trap cleaning
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Water Heater Services

  • Electric water heater installation
  • Gas water heater installation
  • Solar water heater setup
  • Water heater repair & maintenance
  • Thermostat & element replacement
  • Tank flushing & descaling
  • Tankless water heater installation
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Pipe Installation & Repair

  • New pipe installation (PVC, copper, PEX)
  • Pipe replacement and re-piping
  • Leak detection and repair
  • Pipe insulation & rerouting
  • Galvanized pipe replacement
  • Underground pipe repair
  • Pressure testing
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Bathroom & Kitchen Plumbing

  • Complete bathroom plumbing installation
  • Bathroom & kitchen remodeling
  • Shower, tub & vanity installation
  • Sink & faucet installation
  • Dishwasher connection & repair
  • Water filtration system installation
  • Gas line for cooker installation
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Water Line & Sewer Services

  • Main water line installation & repair
  • Water pressure regulation
  • Backflow prevention installation
  • Sewer line installation & replacement
  • Sewer camera inspection
  • Septic tank installation & pumping
  • Trenchless sewer repair
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Water Treatment Systems

  • Water filtration system installation
  • Water softener installation
  • Reverse osmosis system setup
  • UV water purification systems
  • Whole-house water treatment
  • Filter replacement & maintenance
  • Iron filter installation

Gas Line Services

  • Natural gas line installation
  • LPG gas line installation
  • Gas line repair & replacement
  • Gas leak detection & repair
  • Gas appliance connection
  • Gas pressure testing & inspection
  • Conversion services
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Preventive Maintenance

  • Annual plumbing inspections
  • Drain maintenance programs
  • Water heater maintenance
  • Pipe inspection & testing
  • Fixture maintenance
  • Water pressure checks
  • Plumbing system evaluation
View All Services
Why Choose Us

Nairobi's Most Trusted Plumbing Team

Since our establishment, Cossy Plumbing Services has built a reputation for excellence, reliability, and professional service delivery across Nairobi and adjacent counties. Here's why thousands of homeowners and businesses trust us.

24/7 Emergency Service

Plumbing emergencies don't keep office hours. We respond around the clock, 365 days a year.

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Certified Professionals

Every plumber on our team is fully certified, trained, and undergoes continuous professional development.

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Transparent Pricing

No hidden fees, no surprise charges. We provide clear quotes before any work begins.

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Workmanship Guarantee

All our work is backed by a satisfaction guarantee. We use quality parts that last.

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Same-Day Service

In most cases, we can be at your door the same day you call. Fast, efficient, reliable.

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Proven Track Record

Over 979 satisfied customers and counting. Our reviews speak for themselves.

Call Us Today Get a Free Quote
Cossy Plumbing certified plumber at work in Nairobi
Commercial Plumbing

Commercial Plumbing Systems & Installations

We deliver specialized commercial plumbing services for offices, hotels, restaurants, retail spaces, and industrial facilities throughout Nairobi. Our plumbers understand complex commercial systems, high-volume demands, and code compliance requirements unique to business properties.

1

Experienced Commercial Specialists

Our team has deep expertise in commercial plumbing systems, working with restaurants, offices, warehouses, and multi-unit residential buildings.

2

Minimal Business Disruption

We schedule work during off-hours, complete projects efficiently, and maintain operations continuity to protect your revenue and customer experience.

3

Comprehensive Service Coverage

From routine maintenance to emergency repairs and new installations, we handle all commercial plumbing needs with professional-grade equipment and materials.

4

Code Compliance Guaranteed

All commercial work adheres to Kenyan building codes and industry standards. We handle permits and inspections to keep your business fully compliant.

Explore Commercial Services
Commercial plumbing installation in Nairobi office building
Residential plumbing services in Nairobi home
Residential Plumbing

Residential Plumbing Experts in Nairobi, Kenya

Professional residential plumbing services for Nairobi homes including repairs, installations, maintenance, emergency response, and upgrades. Our licensed, experienced plumbers treat your home with the care and respect it deserves.

  • 24/7 Emergency Plumbing Response
  • Licensed and Experienced Plumbers
  • Transparent Pricing, No Hidden Fees
  • Same-Day Service Available
  • Quality Parts & Workmanship Guarantee
  • Comprehensive Home Plumbing Solutions
  • Bathroom & Kitchen Renovation
  • Water Heater Installation & Repair
Residential Services
Our Numbers

Trusted by Thousands Across Kenya

979+
Customers Served
280+
Businesses Supported
135+
Active Projects
250+
Swimming Pools Plumbed
Client Reviews

What Our Customers Say

Here are testimonials from satisfied clients about our professional plumbing services across Nairobi and Kenya.

★★★★★

"Excellent professional plumbing service providers. If you need a quick fix for broken plumbing fixtures in your home urgently and conveniently, Cossy Plumbing is the team to call. They arrived within the hour!"

Patricia Muema
Kitengela, Mombasa Road
★★★★★

"Cossy Plumbers installed my heating systems at my residential home along Kiambu Road. I would recommend them in a heartbeat to anyone that needs such services. Truly professional."

Alicia Kimani
Kiambu, Kenya
★★★★★

"They are great at office plumbing. The plumbing services are impressively professional and rendered on time by experienced technicians. Our Lavington office had zero downtime. You should try them!"

James Ouma
Lavington, Nairobi
★★★★★

"I called Cossy Plumbing for a burst pipe at midnight and they showed up within 45 minutes. The repair was done cleanly and efficiently. Outstanding emergency service — I can't thank them enough."

MW
Westlands, Nairobi
★★★★★

"We hired Cossy Plumbing for our new restaurant's complete plumbing installation. Everything was done to code, on schedule, and within budget. Their commercial team is top notch. Highly recommended!"

FN
Karen, Nairobi
★★★★★

"Cossy Plumbing fixed our persistent water pressure issue that three other plumbers couldn't solve. They diagnosed the root cause immediately, installed a pressure regulator, and now the whole house runs perfectly."

BO
South B, Nairobi
FAQ

Frequently Asked Questions

Common questions about our plumbing services in Nairobi and Kenya.

Yes, Cossy Plumbing Services offers round-the-clock emergency plumbing response, 24 hours a day, 7 days a week, 365 days a year. Plumbing emergencies like burst pipes, severe leaks, blocked sewers, and gas leaks don't wait for business hours — and neither do we. Call us anytime on 0725 275 112 for immediate assistance.
We serve all areas within Nairobi including Westlands, Karen, Lavington, Kileleshwa, Kilimani, South B, South C, Embakasi, Kasarani, Ruiru, and more. We also cover Kiambu, Machakos, Mombasa Road corridor, and adjacent counties. Visit our Coverage page for the full list of service areas.
For emergency calls within Nairobi, our average response time is 30–60 minutes. Response times for areas outside Nairobi may vary depending on distance and traffic. Once you call, our dispatcher will give you an accurate ETA and keep you updated until the plumber arrives.
Absolutely. All Cossy Plumbing technicians are fully certified, licensed, and insured. Our team undergoes rigorous training and continuous professional development to stay current with the latest plumbing techniques, safety standards, and building codes in Kenya. We are committed to delivering work that meets and exceeds industry standards.
Yes, we provide free estimates for most plumbing projects. For standard jobs, we can often give you a quote over the phone or via WhatsApp. For larger or more complex projects, a plumber may need to visit the site to provide an accurate quote. There are no obligations — you decide whether to proceed after reviewing our pricing.
We work with all common pipe materials including PVC (uPVC), CPVC, copper, PEX (cross-linked polyethylene), galvanized steel, and HDPE. Our plumbers will recommend the most suitable material for your specific application, budget, and local water conditions. We also handle pipe replacement, re-piping, and upgrades from old galvanized pipes to modern materials.
Yes! Cossy Plumbing Services handles both residential and commercial plumbing projects of all sizes. For residential clients, we handle everything from leaky taps to full bathroom renovations. For commercial clients, we service restaurants, office buildings, hotels, retail spaces, and industrial facilities — including preventive maintenance programs and large-scale installations.
Yes, all our plumbing work comes with a workmanship guarantee. We stand behind the quality of our service and the materials we use. If an issue arises related to our work within the guarantee period, we will return to fix it at no additional cost. We believe in building long-term relationships with our clients, not one-off transactions.
Yes, we install and service solar water heating systems, electric water heaters, gas water heaters, and tankless (instant) water heaters. Solar water heaters are an excellent investment in Kenya given the abundant sunshine, and our team is experienced in both pressurized and non-pressurized solar systems. We also offer maintenance and descaling services to extend the life of your water heater.
Scheduling is easy. You can call us directly on 0725 275 112, send us an email at info@cossyplumbing.co.ke, or fill out the contact form on this page. We offer flexible scheduling including evenings and weekends. For emergencies, just call — we're available 24/7.
Plumbing Tips & Guides

Latest Articles

Expert plumbing tips, guides, and industry insights from the Cossy Plumbing team.

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Get In Touch

Contact Cossy Plumbing Services

Call us for professional plumbing services across Nairobi and Kenya. We provide expert water supply, heating systems, drainage and plumbing solutions.

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Phone / WhatsApp

0725 275 112
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Service Area

Nairobi & Greater Kenya

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Operating Hours

24/7 — Emergency Response Available

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