Frequently Asked Questions

Injection waterproofing seals water leaks by injecting liquid resin — polyurethane or epoxy — directly into cracks, joints, and voids in concrete under controlled pressure. Unlike surface membranes, injection works from inside the structure: the resin fills the crack itself, bonds to the concrete, and creates a structural seal at the point of water ingress. It is the accepted remedial method for below-grade structures, water-retaining concrete, and any situation where exterior access is restricted.

Polyurethane foam expands on contact with water, making it the correct material for active leaks with ongoing water flow — it seals under pressure and accommodates minor crack movement. Epoxy resin is rigid and high-strength, used for structural cracks where movement has stopped and the priority is load-bearing adhesion. Our site assessment determines which material is appropriate; in many projects, both are used.

Yes — this is its primary advantage over membrane systems. We drill injection ports directly through the interior face of the structure, inject resin under controlled pressure, and seal the ports on completion. No excavation, no exterior access, and no disruption to occupied spaces. This is why injection is the standard remedial method for occupied buildings, below-grade basements, and structures surrounded by adjacent buildings.

Abu Dhabi's environment accelerates concrete water ingress through several mechanisms: high-salinity groundwater with chloride concentrations that attack reinforcement and widen capillary pathways; extreme thermal cycling — cold winter nights to 45°C+ summer days — that repeatedly expands and contracts concrete, opening microcracks; flash flooding that applies sudden hydrostatic pressure to below-grade structures; and original construction membranes that typically fail within 10–15 years under UAE conditions.

When applied correctly to stable concrete, the seal is long-term — the cured resin bonds into the concrete matrix rather than sitting on the surface. Longevity depends on structural movement (ongoing settlement can reopen cracks) and sustained hydrostatic pressure. We issue a completion report with warranty details on every project.

Yes. We use polyurethane injection resins whose manufacturer data sheets state that the cured resin is non-toxic and suitable for contact with potable and brackish water. We provide the data sheets on request.

Indicative ranges: small wet room or bathroom repair AED 800–2,000; medium basement section AED 3,000–8,000; larger basement or underground car park (up to about 100 m²) AED 8,000–20,000; domestic water tank up to 10,000 L AED 1,500–3,500; large or commercial tanks AED 3,500–8,000. Final cost depends on the affected area, crack volume, resin type, and site access conditions. We provide itemised quotes after assessment.

Most projects take one to three working days. A single bathroom or wet room is typically completed in one day; a basement or car park section takes two to three days. We assess the full scope during the site visit and give a specific timeline before work begins.

For a repair to an existing structure, what consultants and facilities managers check is documented compliance: an injection resin CE-marked to EN 1504-5, applied to the method statement issued by the manufacturer, by a registered applicator, with the data sheets and a completion report. That is how we work, and our injection materials have been approved by project consultants through formal material submittals.

Foundations and basement walls; underground car parks and podium decks; tunnels, culverts, and utility shafts; water tanks, swimming pools, and reservoirs; wet rooms, bathrooms, and plant rooms; retaining walls and planter boxes. Any concrete structure with active or historic water ingress is a candidate.

ADDC (Abu Dhabi Distribution Company) and AADC (Al Ain Distribution Company) distributed electricity across Abu Dhabi emirate. Since January 2025 they operate as one company, TAQA Distribution. New connections, load increases and significant changes to an installation must meet its technical standards and pass its inspection before the supply is energised; routine maintenance and like-for-like repairs normally need no approval.

Three direct consequences: the distribution company (TAQA Distribution, formerly ADDC) will refuse to energise — or will disconnect — the supply until compliant work is approved; property insurance policies in the UAE typically exclude damage claims arising from unlicensed or non-compliant installations; and at sale or lease, an installation that cannot show the required approval can fail the handover inspection.

Four steps: design and specification to the Abu Dhabi wiring regulations (circuit layouts, load calculations, compliant materials); engineer-supervised installation and testing; submission by a TAQA Distribution-licensed contractor and inspection, which we coordinate; and a handover package with the approval, circuit schedule and warranty.

Work on fixed electrical wiring should be carried out by a licensed contractor. Unlicensed work can void property insurance, fail handover inspection, and create safety risks. Most small jobs need no authority approval, and we can often schedule them within a few days.

Typically three to seven working days depending on villa size, specification, and fit-out stage. Distribution board replacement and smaller works are usually completed in one day.

Replacing the existing panel with a correctly rated unit; upgrading circuit breakers to current ADDC specification; verifying earthing continuity; labelling all circuits; and load testing. We carry out a load analysis first to confirm the new board is correctly sized for the property's actual demand.

Indicative ranges: distribution board upgrade for a standard villa AED 1,500–4,000; new apartment full installation AED 3,000–8,000; new villa installation from AED 15,000 depending on size and specification; approval coordination (TAQA Distribution, formerly ADDC) AED 500–2,000. All quotes are itemised after assessment.

Yes. All Dot Expert electrical installations include a workmanship warranty. Specific terms are documented in your project quote and included in the handover package.

We cover all areas of Abu Dhabi emirate — including Abu Dhabi city, Al Reem Island, Saadiyat Island, Yas Island, Khalidiyah, Muroor, Al Mushrif, Al Ain, and surrounding areas. Contact us to confirm availability for your specific location.

Yes — this is one of our core advantages. Dot Expert is licensed for both disciplines. Renovation projects that require electrical work in wet areas, basement fit-outs needing both waterproofing and electrical, or any project where both scopes overlap can be handled under one contract with a single point of accountability.

Contact us via the quote form on this website, by phone, or on WhatsApp. Send photos on WhatsApp first and we tell you whether a site visit is needed; for buildings we arrange a survey. We then define the scope and provide a detailed itemised quote. No obligation.

Yes. Dot Expert General Contracting L.L.C S.P.C is registered for UAE VAT. A tax invoice with our TRN is issued on project completion.

Dot Expert was established in Abu Dhabi in 2025 and is licensed by the Abu Dhabi Department of Economic Development as a General Contracting company.