Stopping leaks from concrete

About Us – Donchev Construction Ltd.

Welcome to Donchev Construction Ltd. – your trusted partner in all repair activities related to leaks and structural wear. We specialize in providing high-quality services that maintain the strength and aesthetics of your buildings. Also stopping leaks from concrete and more.  With extensive experience, a professional team, and modern technologies, we ensure a personalized approach and long-lasting results tailored to every project.

Quality of Work

At Donchev Construction Ltd., quality begins from the very first inspection. Our process consists of several key steps to ensure results that meet the highest standards:

SERVICES

Monolithing of holes

stopping leaks from concrete

Every building owner understands the importance of structural integrity. Whether dealing with cracks, openings, or other damage that can allow water and dust to penetrate, monolithic sealing of openings is a professional method for restoring the strength of your building. Our company offers tailored 

Stopping point leaks

Og stopping leaks from concrete Спиране на точкови течове Инжектиране на бетон

Pinpoint leaks may seem minor, but if left unattended, they can lead to serious problems. Whether it’s a small drip coming through the roof, joints, or walls, every leak can cause structural damage, mold growth, and increased repair expenses. Our company provides professional pinpoint leak sealing services

Stopping leaks construction joints

stopping leaks from concrete Спиране на теч при работни фуги Stopping leaks at construction joints

Construction joints in building structures are vital for ensuring proper functionality and stability. Over time, however, due to natural expansion and contraction and the impact of weather conditions, they may start allowing water infiltration. This not only threatens the integrity of the structure but can also lead to 

BLOG

basement stay damp even though there is no visible leak
Blog
Site Admin Y

Why does the basement stay damp

If your basement stays damp, even though there is no visible dripping water anywhere, the problem is most often caused by moisture penetrating the structure rather than by a plumbing failure. In many buildings, water reaches the interior through concrete, masonry, construction joints, or microscopic cracks that remain invisible to the naked eye. Identifying the actual cause is therefore the first and most important step toward a long-lasting solution. Without a thorough diagnosis, there is a risk of repairing only the visible damage while leaving the source of the moisture unresolved.

Read more »
Concrete strength, how is it achieved 1
Blog
Site Admin Y

Concrete strength, how is it achieved?

Concrete is one of the most widely used construction materials in the world. The reason is simple. It combines high load-bearing capacity, excellent durability, and a long service life. When discussing concrete strength, the term usually refers to its ability to withstand compressive forces without failure. This property determines whether a structure will remain safe and reliable for decades. Strength does not depend solely on the amount of cement used. The water-to-cement ratio, the quality of the aggregates, proper mixing, effective compaction, and correct curing all play a crucial role.

Read more »
Cracks in concrete, what causes them R1
Blog
Site Admin Y

Cracks in concrete, what causes them

Cracks in concrete are among the most common problems in the construction and operation of various structures. Whether it is a floor slab, foundation, wall, or load-bearing element, the appearance of cracks can be a sign of technological errors, improper loading, or natural material aging processes. In many cases, small cracks do not pose an immediate risk to the strength of the structure. However, when they begin to expand or allow moisture penetration, the consequences can lead to serious damage and costly repairs. That is why it is important to understand the causes of their appearance in time and take appropriate corrective measures.

Read more »

CUSTOMER REVIEWS

Stopping leaks from concrete - gallery

STOPPING CONCRETE LEAKS - VIDEOS

ASK FOR VISIT