Frequently Asked Questions (FAQs)

Our Bonamoussadi offices are open Monday through Saturday from 7:30 AM to 6:00 PM. Our emergency heavy equipment breakdown and on-site engineering dispatch operates 24/7.

You can reach our engineering desk via phone at +(237) 698 913 102 or +(237) 652 295 982, by email at contact@adeconstructionservices.com, or via WhatsApp at +237 652 295 982.

Yes! While our headquarters is in Douala, we routinely execute major civil engineering, earthmoving, water borehole drilling, and land subdivision projects in Yaoundé, Kribi, Bafoussam, Ebolowa, Limbe, and across the CEMAC transit corridors (Chad and Central African Republic).

You can submit an inquiry through our website contact form, call our hotlines, or message us on WhatsApp with your site location and project dimensions. We provide a preliminary quote within 24 hours followed by an on-site technical inspection.

Our registered geometricians utilize dual-frequency RTK GNSS GPS receivers and high-precision electronic total stations to ensure millimeter accuracy tied to Cameroon's national geodetic beacon network.

Proper road allowances allow heavy delivery trucks, stormwater drainage canals, and utility lines (electricity, water, fiber optics) to pass freely. Estates with adequate roads command 30% to 50% higher land resale prices.

A Plan de Bornage is an official georeferenced boundary survey plan showing coordinates, distances, and adjoining properties. It is the primary technical document required by MINDCAF for Title Deed issuance.

Field boundary surveying and beacon planting take 5 to 10 working days, followed by CAD master plan drafting and cadastral file submission within 7 days.

Yes. Unlike standalone survey firms, ADE Construction Services mobilizes our own fleet of CAT bulldozers and motor graders to open and profile access roads as soon as boundaries are pegged.

Under Cameroonian land law, customary village agreements (Abandons coutumiers) do not constitute definitive legal ownership. Only a **Titre Foncier (Land Title)** registered with MINDCAF provides inviolable, perpetual ownership.

Our team performs a formal cadastral search (Demande d'état des droits réels) at the Conservation Foncière to confirm the registered owner, title validity, and check for any mortgage encumbrances or pending litigation.

It is the official on-site boundary verification presided over by a state land commission, the village chief, the buyer, the seller, and all neighboring plot owners. Everyone signs the official minutes to certify there are no boundary disputes.

We provide complete proxy representation for overseas buyers: physical site video audits, geodetic verification, notarial escrow coordination, and direct administrative tracking at the Ministry of Land Tenure.

A standard Morcellement file typically takes between 3 to 6 months from notarial deed signature to the delivery of the individual Titre Foncier book.

We excavate soft organic silt down to firm ground, install non-woven geotextile separation membranes, place rock ballast layers, and backfill with select laterite compacted in 20cm lifts using 16-ton vibratory rollers.

It is the engineering standard that ensures the soil has been compacted to 95% of its maximum laboratory density at optimum moisture. This prevents ground subsidence, road rutting, and foundation cracks.

Yes. We operate our own fleet of 20m³ heavy tipper trucks sourcing directly from certified quarries in the Littoral Region for prompt on-site delivery.

Yes, our CAT 320 and 336 crawler excavators handle deep basement digging, temporary earth retention systems, and site dewatering for R+3 to R+8 commercial towers.

We construct reinforced concrete cantilever retaining walls, stone masonry walls, gabion basket gravity structures, and rip-rap erosion revetments.

Our fleet includes CAT crawler excavators (20T-36T with buckets and hydraulic breakers), CAT 140K motor graders, CAT D6/D7 bulldozers, 14T vibratory rollers, 20m³ dump trucks, rotary water drilling rigs, and mobile cranes.

A **Wet Lease** includes the machine, certified operator, routine maintenance, and diesel fuel provided by ADE. A **Dry Lease** includes the machine and operator, while the client supplies verified diesel fuel on site.

All ADE operators hold valid heavy plant driving certifications with a minimum of 8 years field experience on high-precision earthmoving, slope grading, and rock demolition.

We transport all crawler machinery on our own multi-axle lowboy heavy trailers (Porte-chars) directly to your project location anywhere in Cameroon within 24 to 48 hours.

Our mobile maintenance mechanics dispatch immediately with spare parts. If a breakdown cannot be resolved within 4 hours, we replace the machine to guarantee zero project downtime.

A geophysical resistivity survey measures subsurface electrical resistivity to accurately locate productive deep aquifers and determine exact rock strata, eliminating dry hole drilling risks.

We drill between 60 meters and 180 meters to reach deep confined aquifers shielded from surface microbial pollution, ensuring continuous year-round potable drinking water.

Yes! We install high-efficiency solar submersible pump systems with photovoltaic solar arrays that pump water into overhead storage towers during daylight, offering zero electricity bills.

Yes, we design and construct reinforced concrete and steel overhead water towers with capacities ranging from 5,000 liters for private villas up to 100,000 liters for industrial plants and housing estates.

Yes. Every borehole completed by ADE Construction Services includes an official physical-chemical and bacteriological water analysis certificate from an accredited public health laboratory in Cameroon.