Professional Air Conditioner Installation, Servicing & Maintenance in Nairobi — GossTech
Description:
GossTech provides professional air conditioner installation, servicing and preventive maintenance across Nairobi and surrounding towns. Fast diagnostics, skilled repairs for all major AC brands (Daikin, Mitsubishi, Samsung, LG, Panasonic, Midea, Carrier, Hitachi, Toshiba, Hisense and more), planned maintenance contracts, and same-day service across Westlands, Kilimani, Karen, Eastlands, South B/C, Embakasi, Lang’ata and beyond. Contact +254723613664 • info@gosstech.co.ke • www.gosstech.co.ke
Introduction
Air conditioning is no longer a luxury in Nairobi — it’s essential for comfort, productivity and protecting sensitive equipment. Whether you run a busy office in Upper Hill, manage a guesthouse in Kilimani, or need a residential split system at home in Karen, GossTech delivers professional, safe and cost-effective air conditioner installation, repair and ongoing maintenance.
This pillar guide explains GossTech’s full suite of AC services: installation best practices, detailed servicing and preventive maintenance packages, the full list of estates and neighbourhoods served across Nairobi and nearby towns, a problem-by-problem breakdown of every common AC fault with how GossTech diagnoses and fixes each one, all brands supported, plus other appliances GossTech repairs. Tables are provided for quick reference and clarity.
Contact GossTech now: +254 723 613 664 • info@gosstech.co.ke • www.gosstech.co.ke
Areas & estates in and around Nairobi served by GossTech
GossTech serves homes and businesses throughout Nairobi County and neighbouring towns, including central, eastern, western, northern, southern suburbs and satellite towns. The list below is extensive and intended to cover all common estates and suburbs we regularly service:
Central & CBD
- Nairobi CBD, Tom Mboya Street, Kenyatta Avenue, Moi Avenue, Luthuli Avenue, University Way, Loita Street
Westlands / Parklands / Kilimani / Kileleshwa / Lavington
- Westlands, Parklands, Highridge, Muthaiga, Gigiri, Kileleshwa, Kilimani, Lavington, Riverside, Spring Valley, Hurlingham, Kitisuru, Runda
Upper Hill / Valley / Ngong Road / Karen / Lang’ata
- Upper Hill, Ngong Road, Lang’ata, Karen, South C, South B, Lang’ata Road, Nairobi National Park adjacent areas
Eastlands & Embakasi
- Embakasi, Embakasi East/West/South, South C, South B, Donholm, Buruburu, Umoja, Kayole, Dandora, Kariobangi, Buru Buru, Donholm, Komarock, Imara Daima, Umoja II
South & South-West
- Ongata Rongai (Rongai), Kawangware, Kibera, Mbagathi, Karen, Loresho, Muguga, Kabete, Gachie (nearby suburbs on Nairobi fringe)
North & Northeast
- Kasarani, Roysambu, Garden Estate, Zimmerman, Thome, Mathare, Starehe, Parklands, Eastleigh
Industrial Area & Commercial Zones
- Industrial Area, South C industrial zones, Juja Road (businesses along Thika Road corridor), Mombasa Road commercial zones, Nairobi Railway area
Satellite towns / surrounding counties (often serviced by GossTech)
- Kiambu, Ruiru, Githurai, Thika, Kikuyu, Limuru, Ruai, Athi River, Juja, Ongata Rongai, Ngong Town, Limuru Road areas
If your estate or location is not listed above, contact GossTech — we regularly expand coverage and can usually arrange a service visit to nearby communities.
Services offered by GossTech (at a glance)
| Service category | What it includes |
|---|---|
| New AC installation | Site survey, load calculation (BTU), location & mounting, refrigerant linework, electrical connection, commissioning & user handover |
| AC replacement & upgrade | Remove old units, install modern energy-efficient units, upgrade electrical circuits, cosmetic finish |
| Preventive maintenance plans | Scheduled inspections, filter cleaning, coil cleaning, refrigerant leak checks, performance report |
| Repair & diagnostics | Fault isolation, component replacement (compressor, fan motor, PCB, valves), gas top-up, leak repairs |
| Gas (refrigerant) services | Leak detection, evacuation and recharge to manufacturer spec (R410A, R32, R22 legacy where applicable) |
| Commercial HVAC support | Multi-split & VRF servicing, rooftop units, duct cleaning, controls & thermostats |
| Emergency callouts | Same-day or next-day response depending on area and availability |
Common air conditioner problems — diagnosis and GossTech fixes (detailed)
Below we list every common problem ACs develop, exactly how GossTech diagnoses each issue, and the typical repair steps. Use this as a troubleshooting reference and to understand why regular maintenance prevents many of these faults.
Note: Safety first — many AC repairs involve refrigerant handling and mains electrical work. GossTech technicians are trained and carry the right tools, PPE and certifications.
1. Air conditioner not powering on
Diagnosis steps
- Check power supply (circuit breaker, isolator, fuses).
- Test remote control batteries and infrared signal.
- Inspect AC internal PCB and control board for visible damage.
- Use multimeter to check incoming voltage to unit.
Typical repairs
- Reset/replace tripped breakers or replace blown fuses.
- Replace faulty isolator switches or tighten loose connections.
- Replace remote or remote battery; re-program if needed.
- Replace faulty PCB or control module if burnt or shorted.
2. Indoor unit blowing warm air
Diagnosis steps
- Confirm thermostat settings and mode (cooling vs fan).
- Check refrigerant pressure (low/high).
- Inspect condenser (outdoor) for airflow restriction (blocked fins).
- Check evaporator coil for frost/ice or heavy dirt.
Typical repairs
- If refrigerant low: perform leak detection, repair leak and recharge to correct charge.
- Clean condenser and clear obstructions around outdoor unit.
- Defrost and clean evaporator; carry out full service.
- Replace compressor if failed and unrecoverable (cost vs replacement considered).
3. Poor airflow from indoor unit
Diagnosis steps
- Inspect and clean blower fan and motor.
- Check for clogged air filters and blocked vents/ducts.
- Test blower motor capacitor and motor windings.
Typical repairs
- Clean or replace filters; advise frequency of filter cleaning.
- Clean blower assembly; lubricate motor where applicable.
- Replace faulty blower motor or capacitor.
4. Strange noises (clanking, grinding, hissing, buzzing)
Diagnosis steps
- Localize noise source (indoor vs outdoor).
- Inspect mounting brackets, fan blades, compressor mounting.
- Check for refrigerant leak noises (hissing).
- Check for seized fan motor bearings or loose panels.
Typical repairs
- Tighten or replace mounts, anti-vibration pads.
- Straighten or replace bent fan blades; balance fans.
- Replace bearings or the entire fan motor if worn.
- Repair refrigerant leak and confirm sound gone.
5. Water leakage from indoor unit
Diagnosis steps
- Inspect drain pan and condensate drainage line for blockages.
- Check refrigerant levels (overcooling can cause excess condensation).
- Inspect unit tilt and mounting; check drain pipe installation.
Typical repairs
- Clear clogged condensate drain with compressor or vacuum method.
- Re-level indoor unit and secure drain line.
- Replace damaged drain pan or condensate pump if used.
6. Unit frequently trips the breaker
Diagnosis steps
- Measure current draw on compressor and fan.
- Inspect electrical wiring for short circuits or loose connections.
- Test start/run capacitors for failure.
Typical repairs
- Replace faulty capacitors or start relays.
- Tighten/replace wiring; replace breakers if faulty.
- Replace compressor if drawing excessive current.
7. Bad odour from AC
Diagnosis steps
- Inspect filters, evaporator coil and drain for mould/mildew.
- Check for rodent or insect nests in ducting or outdoor unit.
- Evaluate whether a burnt electronic smell is coming from PCB.
Typical repairs
- Deep-clean coils, replace filters, sanitize drain and ductwork.
- Remove nests, treat with antimicrobial solutions.
- Replace damaged components causing burning smell.
8. Ice forming on evaporator coil
Diagnosis steps
- Measure airflow (fan operation) and refrigerant pressure.
- Inspect air filter and coil cleanliness.
- Check thermostat and expansion valve operation.
Typical repairs
- Restore airflow by cleaning filters/repairing blower.
- Repair refrigerant charge issues (undercharge or restriction).
- Replace faulty TXV or expansion device; thaw ice and fully dry unit before restart.
9. Refrigerant leaks
Diagnosis steps
- Use electronic leak detector or UV dye to pinpoint leaks.
- Pressure test the sealed system.
- Inspect joints, pipe runs and valve cores.
Typical repairs
- Repair or braze leaking joints; replace damaged pipe sections.
- Evacuate, vacuum and recharge system to manufacturer specification.
- Provide leak report and recommend long-term monitoring if recurring.
10. Compressor failure
Diagnosis steps
- Measure resistance on compressor windings; check for electrical continuity.
- Inspect for oil leaks, seizure or mechanical damage.
- Check running current and protective devices.
Typical repairs
- Where practical, replace compressor; match refrigerant and oil type.
- If unit is old, advise replacement of entire system (cost analysis).
- Repair start relay, capacitors or wiring if compressor otherwise healthy.
11. Thermostat or remote control faults
Diagnosis steps
- Verify thermostat sensor readings and calibration.
- Check remote receiver board and IR sensor.
Typical repairs
- Recalibrate or replace thermostat head.
- Replace remote or receiver module.
12. Frozen outdoor unit or fan not running
Diagnosis steps
- Check for dirty coils, low refrigerant, or fan motor failure.
- Verify outdoor unit has adequate ventilation.
Typical repairs
- Thaw and clean outdoor coil, repair fan motor, replace if faulty.
- Fix refrigerant issues and ensure clear airflow.
Maintenance checklist — what GossTech does during a standard service visit
| Task | Frequency (recommended) | Why it matters |
|---|---|---|
| Clean/replace air filters | Monthly for heavy use / Quarterly for normal | Keeps airflow high and indoor air quality good |
| Clean evaporator & condenser coils | Every 6 months | Improves heat exchange and energy efficiency |
| Check refrigerant pressure & top up if needed | Annually or when leak suspected | Prevents poor cooling and compressor damage |
| Inspect electrical connections & tighten | Annually | Prevents shorts and breaker trips |
| Test thermostat accuracy | Annually | Ensures correct temperature control |
| Clear condensate drain line | Annually / if water leakage | Prevents indoor water damage and odours |
| Lubricate moving parts | Annually | Reduces wear and noise |
| Check fan motors & blades | Annually | Ensures proper airflow and prevents vibration |
| Full performance test & report | Each visit | Documents unit health and recommendations |
GossTech offers preventive maintenance contracts with scheduled visits (quarterly, biannual or annual) and emergency priority response for contract holders.
Brands & models supported
GossTech repairs and services all major air conditioner brands. We list leading brands commonly found in Nairobi:
| Cooling brand | Typical models supported |
|---|---|
| Daikin | Split, Multi-split, VRV/VRF units |
| Mitsubishi Electric | Split, MSY series, heavy commercial units |
| Panasonic | Split, inverter, window models |
| Samsung | Split, WindFree, inverter units |
| LG | Split, inverter, multi-split |
| Midea | Split & portable units |
| Carrier | Split, ducted and commercial rooftop units |
| Hitachi | Split and commercial systems |
| Toshiba | Split and inverter models |
| Fujitsu | Split systems |
| Hisense | Split and portable |
| York | Commercial and split units |
| Sharp | Split models |
| Gree | Split and inverter units |
| Whirlpool | Window and split models |
| Kelvinator, Indesit & assorted local brands | Various models supported |
GossTech also services older R22 systems where legally and technically permitted; for legacy refrigerants we advise on retrofit or replacement to modern refrigerants (R410A, R32) following environmental and safety best practices.
If you have a specific model, include the model code when you contact GossTech so the technician can bring suitable spare parts.
Other appliances GossTech repairs
GossTech is not limited to air conditioners. Our technicians are experienced across household and commercial appliances:
| Appliance category | Examples |
|---|---|
| Refrigeration | Refrigerators, freezers, cold rooms, display fridges |
| Washing machines & dryers | Top-load, front-load, twin tub, commercial washers |
| Televisions | LED, LCD, Plasma, Smart TV troubleshooting |
| Microwave ovens & built-in ovens | Diagnostics, magnetron & door repairs |
| Geysers & water heaters | Electric geysers, solar water heater controls |
| Dishwashers & cooking appliances | Repair and routine servicing |
| Electrical appliances | Power supplies, inverters, UPS maintenance |
| Small appliances | Vacuum cleaners, irons, kettles (selected) |
Why choose GossTech? (value propositions)
- Experienced certified technicians: Trained in refrigerant handling, electrical safety and modern AC technologies (inverter drives, VRF/VRV systems).
- Comprehensive diagnostics: We isolate root causes — not just symptoms — and provide transparent reports.
- All-brand support & spare parts: Access to genuine and high-quality aftermarket parts.
- Preventive maintenance contracts: Reduce breakdown risk and extend equipment life — ideal for businesses.
- Safety & compliance: Proper handling of refrigerants and electrical work; we follow manufacturer specifications.
- Fast response & transparent pricing: Clear quotes and no surprise charges.
Sample pricing (indicative) — contact for exact quotes
Prices vary by unit capacity (BTU/ton), model, accessibility and parts required. The table below is illustrative — contact GossTech for a firm quote.
| Service | Typical starting price (KES) |
|---|---|
| Basic service (split system) | 1,800 |
| Comprehensive service (split system) | 3,500 |
| Compressor replacement | 15,000+ (depends on capacity & model) |
| Refrigerant recharge (standard) | 3,000+ |
| Installation (split system) | 10,000+ (depends on piping length & electrical work) |
| Preventive maintenance contract (annual, per unit) | 6,000+ |
How to request service — what GossTech needs from you
When you call or email, please provide:
- Location (estate and nearest landmark) — e.g., Kilimani, near Prestige Plaza.
- Unit make & model (if known).
- Problem description (what happens, any error codes, noises, smells).
- Preferred contact and availability.
Contact: +254 723 613 664 • Email: info@gosstech.co.ke • Website: www.gosstech.co.ke
FAQs (quick answers)
Q: How often should I service my AC?
A: For residential units, at least once every 6 months; heavy commercial use may require quarterly servicing.
Q: Do you handle refrigerant charging and leak repairs?
A: Yes — GossTech performs leak detection, repairs and recharges to manufacturer specifications.
Q: Can you install inverter ACs and VRF systems?
A: Yes — we install and maintain inverter splits and commercial VRF/VRV systems.
Q: Do you offer maintenance contracts?
A: Yes — scheduled preventive maintenance with priority response is available.
Q: Are your technicians certified?
A: Yes — technicians are trained in refrigerant handling, electrical safety and modern HVAC systems.
Closing & call to action
Don’t let a poorly maintained air conditioner disrupt comfort or productivity. Whether you need professional installation, an urgent repair, or a preventive maintenance plan across Nairobi or nearby towns, GossTech delivers reliable, transparent and safety-first service.
Call or WhatsApp now: +254 723 613 664
Email: info@gosstech.co.ke
Website / Bookings: www.gosstech.co.ke
We’ll run a free initial phone assessment and schedule a technician to visit your location. GossTech — Nairobi’s choice for professional, all-brand air conditioner installation, servicing and maintenance.
