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Cornerstone Build Ghana · Generator Installation

Generator installation in Accra — power when ECG cannot deliver

Generator supply and installation, automatic transfer switch connection, and generator room construction across Greater Accra. Correctly sized, licensed, fixed price.

Also known as generator Ghana, standby generator Accra, generator installation Ghana services — all covered under one fixed-price Cornerstone contract.

Generator installation services in Accra

ATS Installation

Automatic Transfer Switch installation — connects your existing generator to your property's distribution board with automatic switchover when grid power fails. The most common standalone installation.

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Full Generator Supply & Install

Generator procurement (Perkins, Cummins, Lister Petter, FG Wilson), installation, ATS connection, exhaust routing, and fuel tank setup. Complete turnkey installation.

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Generator Room Construction

Soundproofed generator enclosure or external generator room construction — concrete block, acoustic lining, ventilation, and security.

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Commercial Generator Systems

60kVA–500kVA systems for offices, hotels, schools, and industrial facilities. Three-phase supply, fuel management, and load testing.

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Generator Servicing

Scheduled maintenance, oil and filter changes, battery replacement, and fault diagnosis for existing generators.

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Solar + Generator Hybrid

Integration of solar PV with generator as backup — automatic priority switching between solar, battery, and generator for maximum resilience.

What does generator installation cost in Accra?

ItemQ2 2026 Range (GHS)Notes
ATS installation only (existing generator)GHS 3,500–8,500ATS unit + wiring to distribution board
10kVA generator + ATS + installGHS 18,000–28,000For 2-bed without AC or 3-bed minimal appliances
15kVA generator + ATS + installGHS 25,000–40,000Standard 3-bed house with 1–2 AC units
20kVA generator + ATS + installGHS 35,000–55,0003–4 bed with multiple AC units and full appliances
Generator room (soundproofed block)GHS 12,000–28,000Block enclosure, acoustic lining, ventilation, security
60kVA commercial + ATSGHS 90,000–140,000Commercial / light industrial. Three-phase
Annual service (residential generator)GHS 800–2,500Oil, filter, battery, load test, fault check
Sizing is critical: An undersized generator that is consistently overloaded degrades rapidly and fails within 2–3 years. An oversized generator running at low load is inefficient and develops carbon buildup. We calculate your actual load (including starting current for AC compressors) before specifying generator size — never guess.

Generator questions answered

What size generator do I need for a house in Accra?

A 3-bedroom house with 2 air conditioners, refrigerator, lights, and standard appliances needs a 15–20 kVA generator. Without AC, 8–12 kVA is sufficient. Always factor starting current — AC compressors draw 2–3x their running current on startup. We calculate your actual load before specifying.

What is an ATS and do I need one?

An Automatic Transfer Switch automatically connects your generator when grid power fails and reconnects to the ECG grid when supply returns — without any manual intervention. For residential use, it eliminates the need to manually start and switch over the generator during a power outage. We strongly recommend ATS for all generator installations.

Do I need a generator room in Ghana?

A generator running indoors without ventilation creates fatal carbon monoxide risk. Generators must be installed with adequate ventilation or in a properly designed external enclosure. A purpose-built generator room with acoustic lining also significantly reduces noise impact on the property and neighbours.

Cornerstone Build Ghana

How we price and manage generator installation work

Free site visit within 48 hours

We assess your property at no charge before quoting. For generator installation work, the site visit confirms scope, access, existing conditions, and any complications that affect price. This is what makes our quote accurate rather than estimated.

Itemised PDF quote — every material and labour item listed

Your generator installation quote lists materials by quantity and unit cost, and labour by operation — separately. You can verify every line against current market prices. No lump-sum figures, no hidden items that appear later.

Fixed-price contract before any deposit

The price in the contract is the price you pay. It does not change without a signed change order agreed by both parties. We do not request additional funds mid-project unless you have changed the agreed scope in writing.

6-month workmanship warranty

Every Cornerstone generator installation project carries a written 6-month workmanship warranty from completion. Any defect in our workmanship is corrected at our cost within the warranty period — in writing, not as a verbal promise.

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Service Areas

Generator Installation services across Greater Accra

Cornerstone provides generator installation services across all parts of Greater Accra — East Legon, Airport Residential, Cantonments, Labone, Spintex, Tema, Adenta, Kasoa, Madina, Dansoman, Ashaiman, and Achimota — and in Kumasi, Takoradi, and Cape Coast.

Our generator installation work is priced on a site-specific basis after a free visit to your property. Access, existing conditions, material availability in your area, and the specific scope of your project all affect the final figure. The free site visit and itemised quote confirm your exact price before any commitment.

For diaspora clients managing properties from the UK, US, Canada, or Europe — we carry out generator installation work with full photographic documentation at every stage, sent via WhatsApp. You see exactly what has been done before each stage payment is released. Contact us to arrange a remote site assessment →

Before you hire any generator installation contractor in Accra

  • Ask for a written, itemised quote — not a lump sum or verbal estimate
  • Confirm materials will be GSA-approved (Ghana Standards Authority) where applicable
  • Request a written warranty period — verbal warranties are unenforceable
  • Never pay more than 30% upfront before work begins
  • Tie all payments to verified completion milestones — not calendar dates

Generator safety — what every Accra homeowner must know

Carbon monoxide is the primary risk

Generator exhaust contains carbon monoxide — a colourless, odourless gas that is fatal at low concentrations. The most common generator-related deaths in Ghana occur when generators are run in enclosed spaces — garages, ground-floor rooms, or directly below windows. A generator must always be installed in a properly ventilated external location, with exhaust directed away from any opening or occupied space. A purpose-built generator room with calculated ventilation openings is the correct solution for urban plots where space is constrained.

Back-feed prevention — why an ATS is not optional

Running a generator without a proper transfer switch creates a back-feed risk — generator power can energise the ECG network through your meter, creating a lethal voltage hazard for ECG linesmen working to restore power. An ATS (Automatic Transfer Switch) physically disconnects your property from the ECG network before connecting to generator power, preventing back-feed entirely. This is a legal and safety requirement, not an optional upgrade.

Generator brands available in Ghana — what we recommend

For residential use (8–25kVA): Perkins-engined sets and Lister Petter offer the best long-term reliability and parts availability in Ghana. Chinese-branded generators (Tigmax, Sumec) are significantly cheaper but parts availability and service network are limited. For the size of investment a proper generator installation represents, we recommend specifying a recognised engine brand with a local service network.

For commercial installations (60kVA+), Cummins, FG Wilson (Perkins), and Himoinsa are the standard specification — all have service agents in Accra. We source generators from bonded suppliers with warranty documentation and can coordinate first and ongoing servicing as part of our installation package. Get a generator quote →

Why clients choose Cornerstone for trade work in Accra

Most trade contractors in Accra operate without a written contract, without a warranty, and without a fixed price. The most common complaint we hear from clients who come to us after a bad experience: "the price kept changing," "he stopped coming to site," or "the work failed and he won't come back." These are not inevitable outcomes — they are the result of engaging an unaccountable contractor without a written agreement.

Cornerstone's trade work is governed by the same principles as our full construction contracts: every job has a written, itemised, fixed-price contract signed before work starts. Every material is specified by brand and standard. Every project carries a 6-month written warranty. Your project manager sends you photographs of progress. If something is not right, we fix it — in writing, at our cost, within the warranty period.

We work across all parts of Greater Accra and can travel to Kumasi, Takoradi, and Cape Coast for larger projects. For a free site visit and itemised quote, WhatsApp Kwaku on +233 560 968 224 or use the quote form below.

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Cornerstone Build Ghana — licensed contractor, all trades

Cornerstone Build Ghana is a licensed and classified general contractor serving Greater Accra and Ghana's secondary cities. We carry out full residential and commercial builds as well as specialist trade work — plumbing, painting, tiling, solar installation, borehole drilling, damp proofing, fencing, gates, generator installation, roofing, waterproofing, electrical, carpentry, and foundation works.

Whether you are managing a full build, a renovation, or a standalone trade repair, our approach is the same: free site visit, itemised PDF quote, fixed-price contract, written warranty. Every job — not just the large ones. A painting job and a GHS 2,000,000 villa build are governed by the same written contract and carry the same 6-month warranty.

For diaspora clients based outside Ghana: we carry out all trade work with full photographic documentation at every stage. You receive WhatsApp photos before each stage payment is due, confirming what has been done before you release funds. For property maintenance and repair projects on properties you are not occupying, we can coordinate access with your caretaker or tenant and report back to you directly.

To request a free site visit and itemised quote for any trade service in Greater Accra, WhatsApp Kwaku on +233 560 968 224 or use our online quote request form. We typically respond within 2 hours during business hours and schedule site visits within 48 hours of initial contact.

Get a free, itemised quote today

We visit your site within 48 hours at no charge. Fixed-price contract before any deposit. 6-month warranty on every project.

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